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Add menuconfig, plus some basic Config info, lots of which is just future
authorlandley <landley@driftwood>
Wed, 1 Nov 2006 04:30:06 +0000 (23:30 -0500)
committerlandley <landley@driftwood>
Wed, 1 Nov 2006 04:30:06 +0000 (23:30 -0500)
plans for toysh.  Nothing's currently _using_ this config info, but at least
it's being generated now.

25 files changed:
Config.in [new file with mode: 0644]
kconfig/Makefile [new file with mode: 0644]
kconfig/conf.c [new file with mode: 0644]
kconfig/confdata.c [new file with mode: 0644]
kconfig/expr.c [new file with mode: 0644]
kconfig/expr.h [new file with mode: 0644]
kconfig/lex.zconf.c_shipped [new file with mode: 0644]
kconfig/lkc.h [new file with mode: 0644]
kconfig/lkc_proto.h [new file with mode: 0644]
kconfig/lxdialog/BIG.FAT.WARNING [new file with mode: 0644]
kconfig/lxdialog/check-lxdialog.sh [new file with mode: 0644]
kconfig/lxdialog/checklist.c [new file with mode: 0644]
kconfig/lxdialog/dialog.h [new file with mode: 0644]
kconfig/lxdialog/inputbox.c [new file with mode: 0644]
kconfig/lxdialog/menubox.c [new file with mode: 0644]
kconfig/lxdialog/textbox.c [new file with mode: 0644]
kconfig/lxdialog/util.c [new file with mode: 0644]
kconfig/lxdialog/yesno.c [new file with mode: 0644]
kconfig/mconf.c [new file with mode: 0644]
kconfig/menu.c [new file with mode: 0644]
kconfig/symbol.c [new file with mode: 0644]
kconfig/util.c [new file with mode: 0644]
kconfig/zconf.hash.c_shipped [new file with mode: 0644]
kconfig/zconf.tab.c_shipped [new file with mode: 0644]
lib/Config.in [new file with mode: 0644]

diff --git a/Config.in b/Config.in
new file mode 100644 (file)
index 0000000..5254a5f
--- /dev/null
+++ b/Config.in
@@ -0,0 +1,17 @@
+mainmenu "ToyBox Configuration"
+
+menu "Global settings"
+
+config CONFIG_TOYS_FREE
+       bool "Free memory unnecessarily"
+       default n
+       help
+         When a program exits, the operating system will clean up after it
+         (free memory, close files, etc).  To save size, toybox usually relies
+         on this behavior.  If you're running toybox under a debugger or
+         without a real OS (ala newlib+libgloss), enable this to make toybox
+         clean up after itself.
+
+endmenu
+
+source lib/Config.in
diff --git a/kconfig/Makefile b/kconfig/Makefile
new file mode 100644 (file)
index 0000000..53857de
--- /dev/null
@@ -0,0 +1,62 @@
+# ===========================================================================
+# Kernel configuration targets
+# These targets are used from top-level makefile
+
+KCONFIG_TOP = Config.in
+obj = ./kconfig
+PHONY += clean help oldconfig menuconfig config silentoldconfig \
+       randconfig allyesconfig allnoconfig allmodconfig defconfig
+
+menuconfig: $(obj)/mconf
+       $< $(KCONFIG_TOP)
+
+config: $(obj)/conf
+       $< $(KCONFIG_TOP)
+
+oldconfig: $(obj)/conf
+       $< -o $(KCONFIG_TOP)
+
+silentoldconfig: $(obj)/conf
+       $< -s $(KCONFIG_TOP)
+
+randconfig: $(obj)/conf
+       $< -r $(KCONFIG_TOP)
+
+allyesconfig: $(obj)/conf
+       $< -y $(KCONFIG_TOP)
+
+allnoconfig: $(obj)/conf
+       $< -n $(KCONFIG_TOP)
+
+defconfig: $(obj)/conf
+       $< -d $(KCONFIG_TOP)
+
+# Help text used by make help
+help:
+       @echo  '  config          - Update current config utilising a line-oriented program'
+       @echo  '  menuconfig      - Update current config utilising a menu based program'
+       @echo  '  oldconfig       - Update current config utilising a provided .config as base'
+       @echo  '  silentoldconfig - Same as oldconfig, but quietly'
+       @echo  '  randconfig      - New config with random answer to all options'
+       @echo  '  defconfig       - New config with default answer to all options'
+       @echo  '  allyesconfig    - New config where all options are accepted with yes'
+       @echo  '  allnoconfig     - New config where all options are answered with no'
+
+# Cheesy build
+
+SHIPPED = kconfig/zconf.tab.c kconfig/lex.zconf.c kconfig/zconf.hash.c
+
+%.c: %.c_shipped
+       @ln -s $(notdir $<) $@
+
+gen_config.h: .config
+
+kconfig/mconf: $(SHIPPED)
+       $(CC) -o $@ kconfig/{mconf.c,zconf.tab.c,lxdialog/*.c} \
+               -lcurses "-DCURSES_LOC=<ncurses.h>"
+
+kconfig/conf: $(SHIPPED)
+       $(CC) -o $@ kconfig/{conf.c,zconf.tab.c}
+
+clean::
+       rm -f $(wildcard kconfig/*zconf*.c) kconfig/{conf,mconf}
diff --git a/kconfig/conf.c b/kconfig/conf.c
new file mode 100644 (file)
index 0000000..72940e1
--- /dev/null
@@ -0,0 +1,624 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/stat.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+static void conf(struct menu *menu);
+static void check_conf(struct menu *menu);
+
+enum {
+       ask_all,
+       ask_new,
+       ask_silent,
+       set_default,
+       set_yes,
+       set_mod,
+       set_no,
+       set_random
+} input_mode = ask_all;
+char *defconfig_file;
+
+static int indent = 1;
+static int valid_stdin = 1;
+static int conf_cnt;
+static char line[128];
+static struct menu *rootEntry;
+
+static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
+
+static void strip(char *str)
+{
+       char *p = str;
+       int l;
+
+       while ((isspace(*p)))
+               p++;
+       l = strlen(p);
+       if (p != str)
+               memmove(str, p, l + 1);
+       if (!l)
+               return;
+       p = str + l - 1;
+       while ((isspace(*p)))
+               *p-- = 0;
+}
+
+static void check_stdin(void)
+{
+       if (!valid_stdin && input_mode == ask_silent) {
+               printf(_("aborted!\n\n"));
+               printf(_("Console input/output is redirected. "));
+               printf(_("Run 'make oldconfig' to update configuration.\n\n"));
+               exit(1);
+       }
+}
+
+static void conf_askvalue(struct symbol *sym, const char *def)
+{
+       enum symbol_type type = sym_get_type(sym);
+       tristate val;
+
+       if (!sym_has_value(sym))
+               printf("(NEW) ");
+
+       line[0] = '\n';
+       line[1] = 0;
+
+       if (!sym_is_changable(sym)) {
+               printf("%s\n", def);
+               line[0] = '\n';
+               line[1] = 0;
+               return;
+       }
+
+       switch (input_mode) {
+       case set_no:
+       case set_mod:
+       case set_yes:
+       case set_random:
+               if (sym_has_value(sym)) {
+                       printf("%s\n", def);
+                       return;
+               }
+               break;
+       case ask_new:
+       case ask_silent:
+               if (sym_has_value(sym)) {
+                       printf("%s\n", def);
+                       return;
+               }
+               check_stdin();
+       case ask_all:
+               fflush(stdout);
+               fgets(line, 128, stdin);
+               return;
+       case set_default:
+               printf("%s\n", def);
+               return;
+       default:
+               break;
+       }
+
+       switch (type) {
+       case S_INT:
+       case S_HEX:
+       case S_STRING:
+               printf("%s\n", def);
+               return;
+       default:
+               ;
+       }
+       switch (input_mode) {
+       case set_yes:
+               if (sym_tristate_within_range(sym, yes)) {
+                       line[0] = 'y';
+                       line[1] = '\n';
+                       line[2] = 0;
+                       break;
+               }
+       case set_mod:
+               if (type == S_TRISTATE) {
+                       if (sym_tristate_within_range(sym, mod)) {
+                               line[0] = 'm';
+                               line[1] = '\n';
+                               line[2] = 0;
+                               break;
+                       }
+               } else {
+                       if (sym_tristate_within_range(sym, yes)) {
+                               line[0] = 'y';
+                               line[1] = '\n';
+                               line[2] = 0;
+                               break;
+                       }
+               }
+       case set_no:
+               if (sym_tristate_within_range(sym, no)) {
+                       line[0] = 'n';
+                       line[1] = '\n';
+                       line[2] = 0;
+                       break;
+               }
+       case set_random:
+               do {
+                       val = (tristate)(random() % 3);
+               } while (!sym_tristate_within_range(sym, val));
+               switch (val) {
+               case no: line[0] = 'n'; break;
+               case mod: line[0] = 'm'; break;
+               case yes: line[0] = 'y'; break;
+               }
+               line[1] = '\n';
+               line[2] = 0;
+               break;
+       default:
+               break;
+       }
+       printf("%s", line);
+}
+
+int conf_string(struct menu *menu)
+{
+       struct symbol *sym = menu->sym;
+       const char *def, *help;
+
+       while (1) {
+               printf("%*s%s ", indent - 1, "", menu->prompt->text);
+               printf("(%s) ", sym->name);
+               def = sym_get_string_value(sym);
+               if (sym_get_string_value(sym))
+                       printf("[%s] ", def);
+               conf_askvalue(sym, def);
+               switch (line[0]) {
+               case '\n':
+                       break;
+               case '?':
+                       /* print help */
+                       if (line[1] == '\n') {
+                               help = nohelp_text;
+                               if (menu->sym->help)
+                                       help = menu->sym->help;
+                               printf("\n%s\n", menu->sym->help);
+                               def = NULL;
+                               break;
+                       }
+               default:
+                       line[strlen(line)-1] = 0;
+                       def = line;
+               }
+               if (def && sym_set_string_value(sym, def))
+                       return 0;
+       }
+}
+
+static int conf_sym(struct menu *menu)
+{
+       struct symbol *sym = menu->sym;
+       int type;
+       tristate oldval, newval;
+       const char *help;
+
+       while (1) {
+               printf("%*s%s ", indent - 1, "", menu->prompt->text);
+               if (sym->name)
+                       printf("(%s) ", sym->name);
+               type = sym_get_type(sym);
+               putchar('[');
+               oldval = sym_get_tristate_value(sym);
+               switch (oldval) {
+               case no:
+                       putchar('N');
+                       break;
+               case mod:
+                       putchar('M');
+                       break;
+               case yes:
+                       putchar('Y');
+                       break;
+               }
+               if (oldval != no && sym_tristate_within_range(sym, no))
+                       printf("/n");
+               if (oldval != mod && sym_tristate_within_range(sym, mod))
+                       printf("/m");
+               if (oldval != yes && sym_tristate_within_range(sym, yes))
+                       printf("/y");
+               if (sym->help)
+                       printf("/?");
+               printf("] ");
+               conf_askvalue(sym, sym_get_string_value(sym));
+               strip(line);
+
+               switch (line[0]) {
+               case 'n':
+               case 'N':
+                       newval = no;
+                       if (!line[1] || !strcmp(&line[1], "o"))
+                               break;
+                       continue;
+               case 'm':
+               case 'M':
+                       newval = mod;
+                       if (!line[1])
+                               break;
+                       continue;
+               case 'y':
+               case 'Y':
+                       newval = yes;
+                       if (!line[1] || !strcmp(&line[1], "es"))
+                               break;
+                       continue;
+               case 0:
+                       newval = oldval;
+                       break;
+               case '?':
+                       goto help;
+               default:
+                       continue;
+               }
+               if (sym_set_tristate_value(sym, newval))
+                       return 0;
+help:
+               help = nohelp_text;
+               if (sym->help)
+                       help = sym->help;
+               printf("\n%s\n", help);
+       }
+}
+
+static int conf_choice(struct menu *menu)
+{
+       struct symbol *sym, *def_sym;
+       struct menu *child;
+       int type;
+       bool is_new;
+
+       sym = menu->sym;
+       type = sym_get_type(sym);
+       is_new = !sym_has_value(sym);
+       if (sym_is_changable(sym)) {
+               conf_sym(menu);
+               sym_calc_value(sym);
+               switch (sym_get_tristate_value(sym)) {
+               case no:
+                       return 1;
+               case mod:
+                       return 0;
+               case yes:
+                       break;
+               }
+       } else {
+               switch (sym_get_tristate_value(sym)) {
+               case no:
+                       return 1;
+               case mod:
+                       printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
+                       return 0;
+               case yes:
+                       break;
+               }
+       }
+
+       while (1) {
+               int cnt, def;
+
+               printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
+               def_sym = sym_get_choice_value(sym);
+               cnt = def = 0;
+               line[0] = 0;
+               for (child = menu->list; child; child = child->next) {
+                       if (!menu_is_visible(child))
+                               continue;
+                       if (!child->sym) {
+                               printf("%*c %s\n", indent, '*', menu_get_prompt(child));
+                               continue;
+                       }
+                       cnt++;
+                       if (child->sym == def_sym) {
+                               def = cnt;
+                               printf("%*c", indent, '>');
+                       } else
+                               printf("%*c", indent, ' ');
+                       printf(" %d. %s", cnt, menu_get_prompt(child));
+                       if (child->sym->name)
+                               printf(" (%s)", child->sym->name);
+                       if (!sym_has_value(child->sym))
+                               printf(" (NEW)");
+                       printf("\n");
+               }
+               printf("%*schoice", indent - 1, "");
+               if (cnt == 1) {
+                       printf("[1]: 1\n");
+                       goto conf_childs;
+               }
+               printf("[1-%d", cnt);
+               if (sym->help)
+                       printf("?");
+               printf("]: ");
+               switch (input_mode) {
+               case ask_new:
+               case ask_silent:
+                       if (!is_new) {
+                               cnt = def;
+                               printf("%d\n", cnt);
+                               break;
+                       }
+                       check_stdin();
+               case ask_all:
+                       fflush(stdout);
+                       fgets(line, 128, stdin);
+                       strip(line);
+                       if (line[0] == '?') {
+                               printf("\n%s\n", menu->sym->help ?
+                                       menu->sym->help : nohelp_text);
+                               continue;
+                       }
+                       if (!line[0])
+                               cnt = def;
+                       else if (isdigit(line[0]))
+                               cnt = atoi(line);
+                       else
+                               continue;
+                       break;
+               case set_random:
+                       def = (random() % cnt) + 1;
+               case set_default:
+               case set_yes:
+               case set_mod:
+               case set_no:
+                       cnt = def;
+                       printf("%d\n", cnt);
+                       break;
+               }
+
+       conf_childs:
+               for (child = menu->list; child; child = child->next) {
+                       if (!child->sym || !menu_is_visible(child))
+                               continue;
+                       if (!--cnt)
+                               break;
+               }
+               if (!child)
+                       continue;
+               if (line[strlen(line) - 1] == '?') {
+                       printf("\n%s\n", child->sym->help ?
+                               child->sym->help : nohelp_text);
+                       continue;
+               }
+               sym_set_choice_value(sym, child->sym);
+               if (child->list) {
+                       indent += 2;
+                       conf(child->list);
+                       indent -= 2;
+               }
+               return 1;
+       }
+}
+
+static void conf(struct menu *menu)
+{
+       struct symbol *sym;
+       struct property *prop;
+       struct menu *child;
+
+       if (!menu_is_visible(menu))
+               return;
+
+       sym = menu->sym;
+       prop = menu->prompt;
+       if (prop) {
+               const char *prompt;
+
+               switch (prop->type) {
+               case P_MENU:
+                       if (input_mode == ask_silent && rootEntry != menu) {
+                               check_conf(menu);
+                               return;
+                       }
+               case P_COMMENT:
+                       prompt = menu_get_prompt(menu);
+                       if (prompt)
+                               printf("%*c\n%*c %s\n%*c\n",
+                                       indent, '*',
+                                       indent, '*', prompt,
+                                       indent, '*');
+               default:
+                       ;
+               }
+       }
+
+       if (!sym)
+               goto conf_childs;
+
+       if (sym_is_choice(sym)) {
+               conf_choice(menu);
+               if (sym->curr.tri != mod)
+                       return;
+               goto conf_childs;
+       }
+
+       switch (sym->type) {
+       case S_INT:
+       case S_HEX:
+       case S_STRING:
+               conf_string(menu);
+               break;
+       default:
+               conf_sym(menu);
+               break;
+       }
+
+conf_childs:
+       if (sym)
+               indent += 2;
+       for (child = menu->list; child; child = child->next)
+               conf(child);
+       if (sym)
+               indent -= 2;
+}
+
+static void check_conf(struct menu *menu)
+{
+       struct symbol *sym;
+       struct menu *child;
+
+       if (!menu_is_visible(menu))
+               return;
+
+       sym = menu->sym;
+       if (sym && !sym_has_value(sym)) {
+               if (sym_is_changable(sym) ||
+                   (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
+                       if (!conf_cnt++)
+                               printf(_("*\n* Restart config...\n*\n"));
+                       rootEntry = menu_get_parent_menu(menu);
+                       conf(rootEntry);
+               }
+       }
+
+       for (child = menu->list; child; child = child->next)
+               check_conf(child);
+}
+
+int main(int ac, char **av)
+{
+       int i = 1;
+       const char *name;
+       struct stat tmpstat;
+
+       if (ac > i && av[i][0] == '-') {
+               switch (av[i++][1]) {
+               case 'o':
+                       input_mode = ask_new;
+                       break;
+               case 's':
+                       input_mode = ask_silent;
+                       valid_stdin = isatty(0) && isatty(1) && isatty(2);
+                       break;
+               case 'd':
+                       input_mode = set_default;
+                       break;
+               case 'D':
+                       input_mode = set_default;
+                       defconfig_file = av[i++];
+                       if (!defconfig_file) {
+                               printf(_("%s: No default config file specified\n"),
+                                       av[0]);
+                               exit(1);
+                       }
+                       break;
+               case 'n':
+                       input_mode = set_no;
+                       break;
+               case 'm':
+                       input_mode = set_mod;
+                       break;
+               case 'y':
+                       input_mode = set_yes;
+                       break;
+               case 'r':
+                       input_mode = set_random;
+                       srandom(time(NULL));
+                       break;
+               case 'h':
+               case '?':
+                       fprintf(stderr, "See README for usage info\n");
+                       exit(0);
+               }
+       }
+       name = av[i];
+       if (!name) {
+               printf(_("%s: Kconfig file missing\n"), av[0]);
+               exit(1);
+       }
+       conf_parse(name);
+       //zconfdump(stdout);
+       switch (input_mode) {
+       case set_default:
+               if (!defconfig_file)
+                       defconfig_file = conf_get_default_confname();
+               if (conf_read(defconfig_file)) {
+                       printf("***\n"
+                               "*** Can't find default configuration \"%s\"!\n"
+                               "***\n", defconfig_file);
+                       exit(1);
+               }
+               break;
+       case ask_silent:
+               if (stat(".config", &tmpstat)) {
+                       printf(_("***\n"
+                               "*** You have not yet configured your "PROJECT_NAME"!\n"
+                               "***\n"
+                               "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
+                               "*** \"make menuconfig\" or \"make xconfig\").\n"
+                               "***\n"));
+                       exit(1);
+               }
+       case ask_all:
+       case ask_new:
+               conf_read(NULL);
+               break;
+       case set_no:
+       case set_mod:
+       case set_yes:
+       case set_random:
+               name = getenv("KCONFIG_ALLCONFIG");
+               if (name && !stat(name, &tmpstat)) {
+                       conf_read_simple(name, S_DEF_USER);
+                       break;
+               }
+               switch (input_mode) {
+               case set_no:     name = "allno.config"; break;
+               case set_mod:    name = "allmod.config"; break;
+               case set_yes:    name = "allyes.config"; break;
+               case set_random: name = "allrandom.config"; break;
+               default: break;
+               }
+               if (!stat(name, &tmpstat))
+                       conf_read_simple(name, S_DEF_USER);
+               else if (!stat("all.config", &tmpstat))
+                       conf_read_simple("all.config", S_DEF_USER);
+               break;
+       default:
+               break;
+       }
+
+       if (input_mode != ask_silent) {
+               rootEntry = &rootmenu;
+               conf(&rootmenu);
+               if (input_mode == ask_all) {
+                       input_mode = ask_silent;
+                       valid_stdin = 1;
+               }
+       } else if (sym_change_count) {
+               name = getenv("KCONFIG_NOSILENTUPDATE");
+               if (name && *name) {
+                       fprintf(stderr, _("\n*** "PROJECT_NAME" configuration requires explicit update.\n\n"));
+                       return 1;
+               }
+       } else
+               goto skip_check;
+
+       do {
+               conf_cnt = 0;
+               check_conf(&rootmenu);
+       } while (conf_cnt);
+
+       if (!conf_write(NULL)) {
+skip_check:
+               if (!(input_mode == ask_silent && conf_write_autoconf()))
+                       return 0;
+       }
+       fprintf(stderr, _("\n*** Error writing "PROJECT_NAME" configuration.\n\n"));
+       return 1;
+}
diff --git a/kconfig/confdata.c b/kconfig/confdata.c
new file mode 100644 (file)
index 0000000..ecca23a
--- /dev/null
@@ -0,0 +1,800 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <sys/stat.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+static void conf_warning(const char *fmt, ...)
+       __attribute__ ((format (printf, 1, 2)));
+
+static const char *conf_filename;
+static int conf_lineno, conf_warnings, conf_unsaved;
+
+#ifndef conf_defname
+const char conf_defname[] = "arch/$ARCH/defconfig";
+#endif
+
+static void conf_warning(const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
+       vfprintf(stderr, fmt, ap);
+       fprintf(stderr, "\n");
+       va_end(ap);
+       conf_warnings++;
+}
+
+const char *conf_get_configname(void)
+{
+       char *name = getenv("KCONFIG_CONFIG");
+
+       return name ? name : ".config";
+}
+
+static char *conf_expand_value(const char *in)
+{
+       struct symbol *sym;
+       const char *src;
+       static char res_value[SYMBOL_MAXLENGTH];
+       char *dst, name[SYMBOL_MAXLENGTH];
+
+       res_value[0] = 0;
+       dst = name;
+       while ((src = strchr(in, '$'))) {
+               strncat(res_value, in, src - in);
+               src++;
+               dst = name;
+               while (isalnum(*src) || *src == '_')
+                       *dst++ = *src++;
+               *dst = 0;
+               sym = sym_lookup(name, 0);
+               sym_calc_value(sym);
+               strcat(res_value, sym_get_string_value(sym));
+               in = src;
+       }
+       strcat(res_value, in);
+
+       return res_value;
+}
+
+char *conf_get_default_confname(void)
+{
+       struct stat buf;
+       static char fullname[PATH_MAX+1];
+       char *env, *name;
+
+       name = conf_expand_value(conf_defname);
+       env = getenv(SRCTREE);
+       if (env) {
+               sprintf(fullname, "%s/%s", env, name);
+               if (!stat(fullname, &buf))
+                       return fullname;
+       }
+       return name;
+}
+
+int conf_read_simple(const char *name, int def)
+{
+       FILE *in = NULL;
+       char line[1024];
+       char *p, *p2;
+       struct symbol *sym;
+       int i, def_flags;
+
+       if (name) {
+               in = zconf_fopen(name);
+       } else {
+               struct property *prop;
+
+               name = conf_get_configname();
+               in = zconf_fopen(name);
+               if (in)
+                       goto load;
+               sym_change_count++;
+               if (!sym_defconfig_list)
+                       return 1;
+
+               for_all_defaults(sym_defconfig_list, prop) {
+                       if (expr_calc_value(prop->visible.expr) == no ||
+                           prop->expr->type != E_SYMBOL)
+                               continue;
+                       name = conf_expand_value(prop->expr->left.sym->name);
+                       in = zconf_fopen(name);
+                       if (in) {
+                               printf(_("#\n"
+                                        "# using defaults found in %s\n"
+                                        "#\n"), name);
+                               goto load;
+                       }
+               }
+       }
+       if (!in)
+               return 1;
+
+load:
+       conf_filename = name;
+       conf_lineno = 0;
+       conf_warnings = 0;
+       conf_unsaved = 0;
+
+       def_flags = SYMBOL_DEF << def;
+       for_all_symbols(i, sym) {
+               sym->flags |= SYMBOL_CHANGED;
+               sym->flags &= ~(def_flags|SYMBOL_VALID);
+               if (sym_is_choice(sym))
+                       sym->flags |= def_flags;
+               switch (sym->type) {
+               case S_INT:
+               case S_HEX:
+               case S_STRING:
+                       if (sym->def[def].val)
+                               free(sym->def[def].val);
+               default:
+                       sym->def[def].val = NULL;
+                       sym->def[def].tri = no;
+               }
+       }
+
+       while (fgets(line, sizeof(line), in)) {
+               conf_lineno++;
+               sym = NULL;
+               switch (line[0]) {
+               case '#':
+                       if (memcmp(line + 2, "CONFIG_", 7))
+                               continue;
+                       p = strchr(line + 9, ' ');
+                       if (!p)
+                               continue;
+                       *p++ = 0;
+                       if (strncmp(p, "is not set", 10))
+                               continue;
+                       if (def == S_DEF_USER) {
+                               sym = sym_find(line + 9);
+                               if (!sym) {
+                                       conf_warning("trying to assign nonexistent symbol %s", line + 9);
+                                       break;
+                               }
+                       } else {
+                               sym = sym_lookup(line + 9, 0);
+                               if (sym->type == S_UNKNOWN)
+                                       sym->type = S_BOOLEAN;
+                       }
+                       if (sym->flags & def_flags) {
+                               conf_warning("trying to reassign symbol %s", sym->name);
+                               break;
+                       }
+                       switch (sym->type) {
+                       case S_BOOLEAN:
+                       case S_TRISTATE:
+                               sym->def[def].tri = no;
+                               sym->flags |= def_flags;
+                               break;
+                       default:
+                               ;
+                       }
+                       break;
+               case 'C':
+                       if (memcmp(line, "CONFIG_", 7)) {
+                               conf_warning("unexpected data");
+                               continue;
+                       }
+                       p = strchr(line + 7, '=');
+                       if (!p)
+                               continue;
+                       *p++ = 0;
+                       p2 = strchr(p, '\n');
+                       if (p2) {
+                               *p2-- = 0;
+                               if (*p2 == '\r')
+                                       *p2 = 0;
+                       }
+                       if (def == S_DEF_USER) {
+                               sym = sym_find(line + 7);
+                               if (!sym) {
+                                       conf_warning("trying to assign nonexistent symbol %s", line + 7);
+                                       break;
+                               }
+                       } else {
+                               sym = sym_lookup(line + 7, 0);
+                               if (sym->type == S_UNKNOWN)
+                                       sym->type = S_OTHER;
+                       }
+                       if (sym->flags & def_flags) {
+                               conf_warning("trying to reassign symbol %s", sym->name);
+                               break;
+                       }
+                       switch (sym->type) {
+                       case S_TRISTATE:
+                               if (p[0] == 'm') {
+                                       sym->def[def].tri = mod;
+                                       sym->flags |= def_flags;
+                                       break;
+                               }
+                       case S_BOOLEAN:
+                               if (p[0] == 'y') {
+                                       sym->def[def].tri = yes;
+                                       sym->flags |= def_flags;
+                                       break;
+                               }
+                               if (p[0] == 'n') {
+                                       sym->def[def].tri = no;
+                                       sym->flags |= def_flags;
+                                       break;
+                               }
+                               conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+                               break;
+                       case S_OTHER:
+                               if (*p != '"') {
+                                       for (p2 = p; *p2 && !isspace(*p2); p2++)
+                                               ;
+                                       sym->type = S_STRING;
+                                       goto done;
+                               }
+                       case S_STRING:
+                               if (*p++ != '"')
+                                       break;
+                               for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+                                       if (*p2 == '"') {
+                                               *p2 = 0;
+                                               break;
+                                       }
+                                       memmove(p2, p2 + 1, strlen(p2));
+                               }
+                               if (!p2) {
+                                       conf_warning("invalid string found");
+                                       continue;
+                               }
+                       case S_INT:
+                       case S_HEX:
+                       done:
+                               if (sym_string_valid(sym, p)) {
+                                       sym->def[def].val = strdup(p);
+                                       sym->flags |= def_flags;
+                               } else {
+                                       conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+                                       continue;
+                               }
+                               break;
+                       default:
+                               ;
+                       }
+                       break;
+               case '\r':
+               case '\n':
+                       break;
+               default:
+                       conf_warning("unexpected data");
+                       continue;
+               }
+               if (sym && sym_is_choice_value(sym)) {
+                       struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+                       switch (sym->def[def].tri) {
+                       case no:
+                               break;
+                       case mod:
+                               if (cs->def[def].tri == yes) {
+                                       conf_warning("%s creates inconsistent choice state", sym->name);
+                                       cs->flags &= ~def_flags;
+                               }
+                               break;
+                       case yes:
+                               if (cs->def[def].tri != no) {
+                                       conf_warning("%s creates inconsistent choice state", sym->name);
+                                       cs->flags &= ~def_flags;
+                               } else
+                                       cs->def[def].val = sym;
+                               break;
+                       }
+                       cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri);
+               }
+       }
+       fclose(in);
+
+       if (modules_sym)
+               sym_calc_value(modules_sym);
+       return 0;
+}
+
+int conf_read(const char *name)
+{
+       struct symbol *sym;
+       struct property *prop;
+       struct expr *e;
+       int i, flags;
+
+       sym_change_count = 0;
+
+       if (conf_read_simple(name, S_DEF_USER))
+               return 1;
+
+       for_all_symbols(i, sym) {
+               sym_calc_value(sym);
+               if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
+                       goto sym_ok;
+               if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
+                       /* check that calculated value agrees with saved value */
+                       switch (sym->type) {
+                       case S_BOOLEAN:
+                       case S_TRISTATE:
+                               if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
+                                       break;
+                               if (!sym_is_choice(sym))
+                                       goto sym_ok;
+                       default:
+                               if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
+                                       goto sym_ok;
+                               break;
+                       }
+               } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
+                       /* no previous value and not saved */
+                       goto sym_ok;
+               conf_unsaved++;
+               /* maybe print value in verbose mode... */
+       sym_ok:
+               if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
+                       if (sym->visible == no)
+                               sym->flags &= ~SYMBOL_DEF_USER;
+                       switch (sym->type) {
+                       case S_STRING:
+                       case S_INT:
+                       case S_HEX:
+                               if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val))
+                                       sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
+                       default:
+                               break;
+                       }
+               }
+               if (!sym_is_choice(sym))
+                       continue;
+               prop = sym_get_choice_prop(sym);
+               flags = sym->flags;
+               for (e = prop->expr; e; e = e->left.expr)
+                       if (e->right.sym->visible != no)
+                               flags &= e->right.sym->flags;
+               sym->flags &= flags | ~SYMBOL_DEF_USER;
+       }
+
+       sym_change_count += conf_warnings || conf_unsaved;
+
+       return 0;
+}
+
+struct menu *next_menu(struct menu *menu)
+{
+       if (menu->list) return menu->list;
+       do {
+               if (menu->next) {
+                       menu = menu->next;
+                       break;
+               }
+       } while ((menu = menu->parent));
+
+       return menu;
+}
+
+#define SYMBOL_FORCEWRITE (1<<31)
+
+int conf_write(const char *name)
+{
+       FILE *out;
+       struct symbol *sym;
+       struct menu *menu;
+       const char *basename;
+       char dirname[128], tmpname[128], newname[128];
+       int type, l, writetype;
+       const char *str;
+       time_t now;
+       int use_timestamp = 1;
+       char *env;
+
+       dirname[0] = 0;
+       if (name && name[0]) {
+               struct stat st;
+               char *slash;
+
+               if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
+                       strcpy(dirname, name);
+                       strcat(dirname, "/");
+                       basename = conf_get_configname();
+               } else if ((slash = strrchr(name, '/'))) {
+                       int size = slash - name + 1;
+                       memcpy(dirname, name, size);
+                       dirname[size] = 0;
+                       if (slash[1])
+                               basename = slash + 1;
+                       else
+                               basename = conf_get_configname();
+               } else
+                       basename = name;
+       } else
+               basename = conf_get_configname();
+
+       sprintf(newname, "%s%s", dirname, basename);
+       env = getenv("KCONFIG_OVERWRITECONFIG");
+       if (!env || !*env) {
+               sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
+               out = fopen(tmpname, "w");
+       } else {
+               *tmpname = 0;
+               out = fopen(newname, "w");
+       }
+       if (!out)
+               return 1;
+
+       sym = sym_lookup("KERNELVERSION", 0);
+       sym_calc_value(sym);
+       time(&now);
+       env = getenv("KCONFIG_NOTIMESTAMP");
+       if (env && *env)
+               use_timestamp = 0;
+
+       fprintf(out, _("#\n"
+                      "# Automatically generated make config: don't edit\n"
+                      "# "PROJECT_NAME" version: %s\n"
+                      "%s%s"
+                      "#\n"),
+                    sym_get_string_value(sym),
+                    use_timestamp ? "# " : "",
+                    use_timestamp ? ctime(&now) : "");
+
+       if (!sym_change_count)
+               sym_clear_all_valid();
+
+       // Write out all symbols (even in closed sub-menus).
+       if (1) {
+               for (menu = rootmenu.list; menu; menu = next_menu(menu))
+                       if (menu->sym) menu->sym->flags |= SYMBOL_FORCEWRITE;
+               writetype = SYMBOL_FORCEWRITE;
+
+       // Don't write  out symbols in closed menus.
+
+       } else writetype = SYMBOL_WRITE;
+
+
+       menu = rootmenu.list;
+       while (menu) {
+               sym = menu->sym;
+               if (!sym) {
+                       if (!menu_is_visible(menu))
+                               goto next;
+                       str = menu_get_prompt(menu);
+                       fprintf(out, "\n"
+                                    "#\n"
+                                    "# %s\n"
+                                    "#\n", str);
+               } else if (!(sym->flags & SYMBOL_CHOICE)) {
+                       sym_calc_value(sym);
+                       if (!(sym->flags & writetype))
+                               goto next;
+                       sym->flags &= ~writetype;
+                       type = sym->type;
+                       if (type == S_TRISTATE) {
+                               sym_calc_value(modules_sym);
+                               if (modules_sym->curr.tri == no)
+                                       type = S_BOOLEAN;
+                       }
+                       switch (type) {
+                       case S_BOOLEAN:
+                       case S_TRISTATE:
+                               switch (sym_get_tristate_value(sym)) {
+                               case no:
+                                       fprintf(out, "# CONFIG_%s is not set\n", sym->name);
+                                       break;
+                               case mod:
+                                       fprintf(out, "CONFIG_%s=m\n", sym->name);
+                                       break;
+                               case yes:
+                                       fprintf(out, "CONFIG_%s=y\n", sym->name);
+                                       break;
+                               }
+                               break;
+                       case S_STRING:
+                               str = sym_get_string_value(sym);
+                               fprintf(out, "CONFIG_%s=\"", sym->name);
+                               while (1) {
+                                       l = strcspn(str, "\"\\");
+                                       if (l) {
+                                               fwrite(str, l, 1, out);
+                                               str += l;
+                                       }
+                                       if (!*str)
+                                               break;
+                                       fprintf(out, "\\%c", *str++);
+                               }
+                               fputs("\"\n", out);
+                               break;
+                       case S_HEX:
+                               str = sym_get_string_value(sym);
+                               if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
+                                       fprintf(out, "CONFIG_%s=%s\n", sym->name, *str ? str : "0");
+                                       break;
+                               }
+                       case S_INT:
+                               str = sym_get_string_value(sym);
+                               fprintf(out, "CONFIG_%s=%s\n", sym->name, *str ? str : "0");
+                               break;
+                       }
+               }
+
+       next:
+               if (writetype == SYMBOL_WRITE) {
+                       if (menu->list) {
+                               menu = menu->list;
+                               continue;
+                       }
+                       if (menu->next)
+                               menu = menu->next;
+                       else while ((menu = menu->parent)) {
+                               if (menu->next) {
+                                       menu = menu->next;
+                                       break;
+                               }
+                       }
+               } else
+                       menu = next_menu(menu);
+       }
+       fclose(out);
+
+       if (*tmpname) {
+               strcat(dirname, basename);
+               strcat(dirname, ".old");
+               rename(newname, dirname);
+               if (rename(tmpname, newname))
+                       return 1;
+       }
+
+       printf(_("#\n"
+                "# configuration written to %s\n"
+                "#\n"), newname);
+
+       sym_change_count = 0;
+
+       return 0;
+}
+
+int conf_split_config(void)
+{
+       char *name, path[128];
+       char *s, *d, c;
+       struct symbol *sym;
+       struct stat sb;
+       int res, i, fd;
+
+       name = getenv("KCONFIG_AUTOCONFIG");
+       if (!name)
+               name = "include/config/auto.conf";
+       conf_read_simple(name, S_DEF_AUTO);
+
+       if (chdir("include/config"))
+               return 1;
+
+       res = 0;
+       for_all_symbols(i, sym) {
+               sym_calc_value(sym);
+               if ((sym->flags & SYMBOL_AUTO) || !sym->name)
+                       continue;
+               if (sym->flags & SYMBOL_WRITE) {
+                       if (sym->flags & SYMBOL_DEF_AUTO) {
+                               /*
+                                * symbol has old and new value,
+                                * so compare them...
+                                */
+                               switch (sym->type) {
+                               case S_BOOLEAN:
+                               case S_TRISTATE:
+                                       if (sym_get_tristate_value(sym) ==
+                                           sym->def[S_DEF_AUTO].tri)
+                                               continue;
+                                       break;
+                               case S_STRING:
+                               case S_HEX:
+                               case S_INT:
+                                       if (!strcmp(sym_get_string_value(sym),
+                                                   sym->def[S_DEF_AUTO].val))
+                                               continue;
+                                       break;
+                               default:
+                                       break;
+                               }
+                       } else {
+                               /*
+                                * If there is no old value, only 'no' (unset)
+                                * is allowed as new value.
+                                */
+                               switch (sym->type) {
+                               case S_BOOLEAN:
+                               case S_TRISTATE:
+                                       if (sym_get_tristate_value(sym) == no)
+                                               continue;
+                                       break;
+                               default:
+                                       break;
+                               }
+                       }
+               } else if (!(sym->flags & SYMBOL_DEF_AUTO))
+                       /* There is neither an old nor a new value. */
+                       continue;
+               /* else
+                *      There is an old value, but no new value ('no' (unset)
+                *      isn't saved in auto.conf, so the old value is always
+                *      different from 'no').
+                */
+
+               /* Replace all '_' and append ".h" */
+               s = sym->name;
+               d = path;
+               while ((c = *s++)) {
+                       c = tolower(c);
+                       *d++ = (c == '_') ? '/' : c;
+               }
+               strcpy(d, ".h");
+
+               /* Assume directory path already exists. */
+               fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+               if (fd == -1) {
+                       if (errno != ENOENT) {
+                               res = 1;
+                               break;
+                       }
+                       /*
+                        * Create directory components,
+                        * unless they exist already.
+                        */
+                       d = path;
+                       while ((d = strchr(d, '/'))) {
+                               *d = 0;
+                               if (stat(path, &sb) && mkdir(path, 0755)) {
+                                       res = 1;
+                                       goto out;
+                               }
+                               *d++ = '/';
+                       }
+                       /* Try it again. */
+                       fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+                       if (fd == -1) {
+                               res = 1;
+                               break;
+                       }
+               }
+               close(fd);
+       }
+out:
+       if (chdir("../.."))
+               return 1;
+
+       return res;
+}
+
+int conf_write_autoconf(void)
+{
+       struct symbol *sym;
+       const char *str;
+       char *name;
+       FILE *out, *out_h;
+       time_t now;
+       int i, l;
+
+       sym_clear_all_valid();
+
+       file_write_dep("include/config/auto.conf.cmd");
+
+       if (conf_split_config())
+               return 1;
+
+       out = fopen(".tmpconfig", "w");
+       if (!out)
+               return 1;
+
+       out_h = fopen(".tmpconfig.h", "w");
+       if (!out_h) {
+               fclose(out);
+               return 1;
+       }
+
+       sym = sym_lookup("KERNELVERSION", 0);
+       sym_calc_value(sym);
+       time(&now);
+       fprintf(out, "#\n"
+                    "# Automatically generated make config: don't edit\n"
+                    "# "PROJECT_NAME" version: %s\n"
+                    "# %s"
+                    "#\n",
+                    sym_get_string_value(sym), ctime(&now));
+       fprintf(out_h, "/*\n"
+                      " * Automatically generated C config: don't edit\n"
+                      " * "PROJECT_NAME" version: %s\n"
+                      " * %s"
+                      " */\n"
+                      "#define AUTOCONF_INCLUDED\n",
+                      sym_get_string_value(sym), ctime(&now));
+
+       for_all_symbols(i, sym) {
+               sym_calc_value(sym);
+               if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
+                       continue;
+               switch (sym->type) {
+               case S_BOOLEAN:
+               case S_TRISTATE:
+                       switch (sym_get_tristate_value(sym)) {
+                       case no:
+                               break;
+                       case mod:
+                               fprintf(out, "CONFIG_%s=m\n", sym->name);
+                               fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
+                               break;
+                       case yes:
+                               fprintf(out, "CONFIG_%s=y\n", sym->name);
+                               fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
+                               break;
+                       }
+                       break;
+               case S_STRING:
+                       str = sym_get_string_value(sym);
+                       fprintf(out, "CONFIG_%s=\"", sym->name);
+                       fprintf(out_h, "#define CONFIG_%s \"", sym->name);
+                       while (1) {
+                               l = strcspn(str, "\"\\");
+                               if (l) {
+                                       fwrite(str, l, 1, out);
+                                       fwrite(str, l, 1, out_h);
+                                       str += l;
+                               }
+                               if (!*str)
+                                       break;
+                               fprintf(out, "\\%c", *str);
+                               fprintf(out_h, "\\%c", *str);
+                               str++;
+                       }
+                       fputs("\"\n", out);
+                       fputs("\"\n", out_h);
+                       break;
+               case S_HEX:
+                       str = sym_get_string_value(sym);
+                       if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
+                               fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+                               fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
+                               break;
+                       }
+               case S_INT:
+                       str = sym_get_string_value(sym);
+                       fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+                       fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
+                       break;
+               default:
+                       break;
+               }
+       }
+       fclose(out);
+       fclose(out_h);
+
+       name = getenv("KCONFIG_AUTOHEADER");
+       if (!name)
+               name = "include/linux/autoconf.h";
+       if (rename(".tmpconfig.h", name))
+               return 1;
+       name = getenv("KCONFIG_AUTOCONFIG");
+       if (!name)
+               name = "include/config/auto.conf";
+       /*
+        * This must be the last step, kbuild has a dependency on auto.conf
+        * and this marks the successful completion of the previous steps.
+        */
+       if (rename(".tmpconfig", name))
+               return 1;
+
+       return 0;
+}
diff --git a/kconfig/expr.c b/kconfig/expr.c
new file mode 100644 (file)
index 0000000..6f98dbf
--- /dev/null
@@ -0,0 +1,1100 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+#define DEBUG_EXPR     0
+
+struct expr *expr_alloc_symbol(struct symbol *sym)
+{
+       struct expr *e = malloc(sizeof(*e));
+       memset(e, 0, sizeof(*e));
+       e->type = E_SYMBOL;
+       e->left.sym = sym;
+       return e;
+}
+
+struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
+{
+       struct expr *e = malloc(sizeof(*e));
+       memset(e, 0, sizeof(*e));
+       e->type = type;
+       e->left.expr = ce;
+       return e;
+}
+
+struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2)
+{
+       struct expr *e = malloc(sizeof(*e));
+       memset(e, 0, sizeof(*e));
+       e->type = type;
+       e->left.expr = e1;
+       e->right.expr = e2;
+       return e;
+}
+
+struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2)
+{
+       struct expr *e = malloc(sizeof(*e));
+       memset(e, 0, sizeof(*e));
+       e->type = type;
+       e->left.sym = s1;
+       e->right.sym = s2;
+       return e;
+}
+
+struct expr *expr_alloc_and(struct expr *e1, struct expr *e2)
+{
+       if (!e1)
+               return e2;
+       return e2 ? expr_alloc_two(E_AND, e1, e2) : e1;
+}
+
+struct expr *expr_alloc_or(struct expr *e1, struct expr *e2)
+{
+       if (!e1)
+               return e2;
+       return e2 ? expr_alloc_two(E_OR, e1, e2) : e1;
+}
+
+struct expr *expr_copy(struct expr *org)
+{
+       struct expr *e;
+
+       if (!org)
+               return NULL;
+
+       e = malloc(sizeof(*org));
+       memcpy(e, org, sizeof(*org));
+       switch (org->type) {
+       case E_SYMBOL:
+               e->left = org->left;
+               break;
+       case E_NOT:
+               e->left.expr = expr_copy(org->left.expr);
+               break;
+       case E_EQUAL:
+       case E_UNEQUAL:
+               e->left.sym = org->left.sym;
+               e->right.sym = org->right.sym;
+               break;
+       case E_AND:
+       case E_OR:
+       case E_CHOICE:
+               e->left.expr = expr_copy(org->left.expr);
+               e->right.expr = expr_copy(org->right.expr);
+               break;
+       default:
+               printf("can't copy type %d\n", e->type);
+               free(e);
+               e = NULL;
+               break;
+       }
+
+       return e;
+}
+
+void expr_free(struct expr *e)
+{
+       if (!e)
+               return;
+
+       switch (e->type) {
+       case E_SYMBOL:
+               break;
+       case E_NOT:
+               expr_free(e->left.expr);
+               return;
+       case E_EQUAL:
+       case E_UNEQUAL:
+               break;
+       case E_OR:
+       case E_AND:
+               expr_free(e->left.expr);
+               expr_free(e->right.expr);
+               break;
+       default:
+               printf("how to free type %d?\n", e->type);
+               break;
+       }
+       free(e);
+}
+
+static int trans_count;
+
+#define e1 (*ep1)
+#define e2 (*ep2)
+
+static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+       if (e1->type == type) {
+               __expr_eliminate_eq(type, &e1->left.expr, &e2);
+               __expr_eliminate_eq(type, &e1->right.expr, &e2);
+               return;
+       }
+       if (e2->type == type) {
+               __expr_eliminate_eq(type, &e1, &e2->left.expr);
+               __expr_eliminate_eq(type, &e1, &e2->right.expr);
+               return;
+       }
+       if (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
+           e1->left.sym == e2->left.sym &&
+           (e1->left.sym == &symbol_yes || e1->left.sym == &symbol_no))
+               return;
+       if (!expr_eq(e1, e2))
+               return;
+       trans_count++;
+       expr_free(e1); expr_free(e2);
+       switch (type) {
+       case E_OR:
+               e1 = expr_alloc_symbol(&symbol_no);
+               e2 = expr_alloc_symbol(&symbol_no);
+               break;
+       case E_AND:
+               e1 = expr_alloc_symbol(&symbol_yes);
+               e2 = expr_alloc_symbol(&symbol_yes);
+               break;
+       default:
+               ;
+       }
+}
+
+void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
+{
+       if (!e1 || !e2)
+               return;
+       switch (e1->type) {
+       case E_OR:
+       case E_AND:
+               __expr_eliminate_eq(e1->type, ep1, ep2);
+       default:
+               ;
+       }
+       if (e1->type != e2->type) switch (e2->type) {
+       case E_OR:
+       case E_AND:
+               __expr_eliminate_eq(e2->type, ep1, ep2);
+       default:
+               ;
+       }
+       e1 = expr_eliminate_yn(e1);
+       e2 = expr_eliminate_yn(e2);
+}
+
+#undef e1
+#undef e2
+
+int expr_eq(struct expr *e1, struct expr *e2)
+{
+       int res, old_count;
+
+       if (e1->type != e2->type)
+               return 0;
+       switch (e1->type) {
+       case E_EQUAL:
+       case E_UNEQUAL:
+               return e1->left.sym == e2->left.sym && e1->right.sym == e2->right.sym;
+       case E_SYMBOL:
+               return e1->left.sym == e2->left.sym;
+       case E_NOT:
+               return expr_eq(e1->left.expr, e2->left.expr);
+       case E_AND:
+       case E_OR:
+               e1 = expr_copy(e1);
+               e2 = expr_copy(e2);
+               old_count = trans_count;
+               expr_eliminate_eq(&e1, &e2);
+               res = (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
+                      e1->left.sym == e2->left.sym);
+               expr_free(e1);
+               expr_free(e2);
+               trans_count = old_count;
+               return res;
+       case E_CHOICE:
+       case E_RANGE:
+       case E_NONE:
+               /* panic */;
+       }
+
+       if (DEBUG_EXPR) {
+               expr_fprint(e1, stdout);
+               printf(" = ");
+               expr_fprint(e2, stdout);
+               printf(" ?\n");
+       }
+
+       return 0;
+}
+
+struct expr *expr_eliminate_yn(struct expr *e)
+{
+       struct expr *tmp;
+
+       if (e) switch (e->type) {
+       case E_AND:
+               e->left.expr = expr_eliminate_yn(e->left.expr);
+               e->right.expr = expr_eliminate_yn(e->right.expr);
+               if (e->left.expr->type == E_SYMBOL) {
+                       if (e->left.expr->left.sym == &symbol_no) {
+                               expr_free(e->left.expr);
+                               expr_free(e->right.expr);
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_no;
+                               e->right.expr = NULL;
+                               return e;
+                       } else if (e->left.expr->left.sym == &symbol_yes) {
+                               free(e->left.expr);
+                               tmp = e->right.expr;
+                               *e = *(e->right.expr);
+                               free(tmp);
+                               return e;
+                       }
+               }
+               if (e->right.expr->type == E_SYMBOL) {
+                       if (e->right.expr->left.sym == &symbol_no) {
+                               expr_free(e->left.expr);
+                               expr_free(e->right.expr);
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_no;
+                               e->right.expr = NULL;
+                               return e;
+                       } else if (e->right.expr->left.sym == &symbol_yes) {
+                               free(e->right.expr);
+                               tmp = e->left.expr;
+                               *e = *(e->left.expr);
+                               free(tmp);
+                               return e;
+                       }
+               }
+               break;
+       case E_OR:
+               e->left.expr = expr_eliminate_yn(e->left.expr);
+               e->right.expr = expr_eliminate_yn(e->right.expr);
+               if (e->left.expr->type == E_SYMBOL) {
+                       if (e->left.expr->left.sym == &symbol_no) {
+                               free(e->left.expr);
+                               tmp = e->right.expr;
+                               *e = *(e->right.expr);
+                               free(tmp);
+                               return e;
+                       } else if (e->left.expr->left.sym == &symbol_yes) {
+                               expr_free(e->left.expr);
+                               expr_free(e->right.expr);
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_yes;
+                               e->right.expr = NULL;
+                               return e;
+                       }
+               }
+               if (e->right.expr->type == E_SYMBOL) {
+                       if (e->right.expr->left.sym == &symbol_no) {
+                               free(e->right.expr);
+                               tmp = e->left.expr;
+                               *e = *(e->left.expr);
+                               free(tmp);
+                               return e;
+                       } else if (e->right.expr->left.sym == &symbol_yes) {
+                               expr_free(e->left.expr);
+                               expr_free(e->right.expr);
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_yes;
+                               e->right.expr = NULL;
+                               return e;
+                       }
+               }
+               break;
+       default:
+               ;
+       }
+       return e;
+}
+
+/*
+ * bool FOO!=n => FOO
+ */
+struct expr *expr_trans_bool(struct expr *e)
+{
+       if (!e)
+               return NULL;
+       switch (e->type) {
+       case E_AND:
+       case E_OR:
+       case E_NOT:
+               e->left.expr = expr_trans_bool(e->left.expr);
+               e->right.expr = expr_trans_bool(e->right.expr);
+               break;
+       case E_UNEQUAL:
+               // FOO!=n -> FOO
+               if (e->left.sym->type == S_TRISTATE) {
+                       if (e->right.sym == &symbol_no) {
+                               e->type = E_SYMBOL;
+                               e->right.sym = NULL;
+                       }
+               }
+               break;
+       default:
+               ;
+       }
+       return e;
+}
+
+/*
+ * e1 || e2 -> ?
+ */
+struct expr *expr_join_or(struct expr *e1, struct expr *e2)
+{
+       struct expr *tmp;
+       struct symbol *sym1, *sym2;
+
+       if (expr_eq(e1, e2))
+               return expr_copy(e1);
+       if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
+               return NULL;
+       if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
+               return NULL;
+       if (e1->type == E_NOT) {
+               tmp = e1->left.expr;
+               if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
+                       return NULL;
+               sym1 = tmp->left.sym;
+       } else
+               sym1 = e1->left.sym;
+       if (e2->type == E_NOT) {
+               if (e2->left.expr->type != E_SYMBOL)
+                       return NULL;
+               sym2 = e2->left.expr->left.sym;
+       } else
+               sym2 = e2->left.sym;
+       if (sym1 != sym2)
+               return NULL;
+       if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
+               return NULL;
+       if (sym1->type == S_TRISTATE) {
+               if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+                   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
+                    (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes))) {
+                       // (a='y') || (a='m') -> (a!='n')
+                       return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_no);
+               }
+               if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+                   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
+                    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes))) {
+                       // (a='y') || (a='n') -> (a!='m')
+                       return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_mod);
+               }
+               if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+                   ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
+                    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod))) {
+                       // (a='m') || (a='n') -> (a!='y')
+                       return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_yes);
+               }
+       }
+       if (sym1->type == S_BOOLEAN && sym1 == sym2) {
+               if ((e1->type == E_NOT && e1->left.expr->type == E_SYMBOL && e2->type == E_SYMBOL) ||
+                   (e2->type == E_NOT && e2->left.expr->type == E_SYMBOL && e1->type == E_SYMBOL))
+                       return expr_alloc_symbol(&symbol_yes);
+       }
+
+       if (DEBUG_EXPR) {
+               printf("optimize (");
+               expr_fprint(e1, stdout);
+               printf(") || (");
+               expr_fprint(e2, stdout);
+               printf(")?\n");
+       }
+       return NULL;
+}
+
+struct expr *expr_join_and(struct expr *e1, struct expr *e2)
+{
+       struct expr *tmp;
+       struct symbol *sym1, *sym2;
+
+       if (expr_eq(e1, e2))
+               return expr_copy(e1);
+       if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
+               return NULL;
+       if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
+               return NULL;
+       if (e1->type == E_NOT) {
+               tmp = e1->left.expr;
+               if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
+                       return NULL;
+               sym1 = tmp->left.sym;
+       } else
+               sym1 = e1->left.sym;
+       if (e2->type == E_NOT) {
+               if (e2->left.expr->type != E_SYMBOL)
+                       return NULL;
+               sym2 = e2->left.expr->left.sym;
+       } else
+               sym2 = e2->left.sym;
+       if (sym1 != sym2)
+               return NULL;
+       if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
+               return NULL;
+
+       if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_yes) ||
+           (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_yes))
+               // (a) && (a='y') -> (a='y')
+               return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+       if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_no) ||
+           (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_no))
+               // (a) && (a!='n') -> (a)
+               return expr_alloc_symbol(sym1);
+
+       if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_mod) ||
+           (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_mod))
+               // (a) && (a!='m') -> (a='y')
+               return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+       if (sym1->type == S_TRISTATE) {
+               if (e1->type == E_EQUAL && e2->type == E_UNEQUAL) {
+                       // (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
+                       sym2 = e1->right.sym;
+                       if ((e2->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
+                               return sym2 != e2->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
+                                                            : expr_alloc_symbol(&symbol_no);
+               }
+               if (e1->type == E_UNEQUAL && e2->type == E_EQUAL) {
+                       // (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
+                       sym2 = e2->right.sym;
+                       if ((e1->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
+                               return sym2 != e1->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
+                                                            : expr_alloc_symbol(&symbol_no);
+               }
+               if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+                          ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
+                           (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes)))
+                       // (a!='y') && (a!='n') -> (a='m')
+                       return expr_alloc_comp(E_EQUAL, sym1, &symbol_mod);
+
+               if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+                          ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
+                           (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes)))
+                       // (a!='y') && (a!='m') -> (a='n')
+                       return expr_alloc_comp(E_EQUAL, sym1, &symbol_no);
+
+               if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+                          ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
+                           (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod)))
+                       // (a!='m') && (a!='n') -> (a='m')
+                       return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+               if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_mod) ||
+                   (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_mod) ||
+                   (e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_yes) ||
+                   (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_yes))
+                       return NULL;
+       }
+
+       if (DEBUG_EXPR) {
+               printf("optimize (");
+               expr_fprint(e1, stdout);
+               printf(") && (");
+               expr_fprint(e2, stdout);
+               printf(")?\n");
+       }
+       return NULL;
+}
+
+static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+       struct expr *tmp;
+
+       if (e1->type == type) {
+               expr_eliminate_dups1(type, &e1->left.expr, &e2);
+               expr_eliminate_dups1(type, &e1->right.expr, &e2);
+               return;
+       }
+       if (e2->type == type) {
+               expr_eliminate_dups1(type, &e1, &e2->left.expr);
+               expr_eliminate_dups1(type, &e1, &e2->right.expr);
+               return;
+       }
+       if (e1 == e2)
+               return;
+
+       switch (e1->type) {
+       case E_OR: case E_AND:
+               expr_eliminate_dups1(e1->type, &e1, &e1);
+       default:
+               ;
+       }
+
+       switch (type) {
+       case E_OR:
+               tmp = expr_join_or(e1, e2);
+               if (tmp) {
+                       expr_free(e1); expr_free(e2);
+                       e1 = expr_alloc_symbol(&symbol_no);
+                       e2 = tmp;
+                       trans_count++;
+               }
+               break;
+       case E_AND:
+               tmp = expr_join_and(e1, e2);
+               if (tmp) {
+                       expr_free(e1); expr_free(e2);
+                       e1 = expr_alloc_symbol(&symbol_yes);
+                       e2 = tmp;
+                       trans_count++;
+               }
+               break;
+       default:
+               ;
+       }
+#undef e1
+#undef e2
+}
+
+static void expr_eliminate_dups2(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+       struct expr *tmp, *tmp1, *tmp2;
+
+       if (e1->type == type) {
+               expr_eliminate_dups2(type, &e1->left.expr, &e2);
+               expr_eliminate_dups2(type, &e1->right.expr, &e2);
+               return;
+       }
+       if (e2->type == type) {
+               expr_eliminate_dups2(type, &e1, &e2->left.expr);
+               expr_eliminate_dups2(type, &e1, &e2->right.expr);
+       }
+       if (e1 == e2)
+               return;
+
+       switch (e1->type) {
+       case E_OR:
+               expr_eliminate_dups2(e1->type, &e1, &e1);
+               // (FOO || BAR) && (!FOO && !BAR) -> n
+               tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
+               tmp2 = expr_copy(e2);
+               tmp = expr_extract_eq_and(&tmp1, &tmp2);
+               if (expr_is_yes(tmp1)) {
+                       expr_free(e1);
+                       e1 = expr_alloc_symbol(&symbol_no);
+                       trans_count++;
+               }
+               expr_free(tmp2);
+               expr_free(tmp1);
+               expr_free(tmp);
+               break;
+       case E_AND:
+               expr_eliminate_dups2(e1->type, &e1, &e1);
+               // (FOO && BAR) || (!FOO || !BAR) -> y
+               tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
+               tmp2 = expr_copy(e2);
+               tmp = expr_extract_eq_or(&tmp1, &tmp2);
+               if (expr_is_no(tmp1)) {
+                       expr_free(e1);
+                       e1 = expr_alloc_symbol(&symbol_yes);
+                       trans_count++;
+               }
+               expr_free(tmp2);
+               expr_free(tmp1);
+               expr_free(tmp);
+               break;
+       default:
+               ;
+       }
+#undef e1
+#undef e2
+}
+
+struct expr *expr_eliminate_dups(struct expr *e)
+{
+       int oldcount;
+       if (!e)
+               return e;
+
+       oldcount = trans_count;
+       while (1) {
+               trans_count = 0;
+               switch (e->type) {
+               case E_OR: case E_AND:
+                       expr_eliminate_dups1(e->type, &e, &e);
+                       expr_eliminate_dups2(e->type, &e, &e);
+               default:
+                       ;
+               }
+               if (!trans_count)
+                       break;
+               e = expr_eliminate_yn(e);
+       }
+       trans_count = oldcount;
+       return e;
+}
+
+struct expr *expr_transform(struct expr *e)
+{
+       struct expr *tmp;
+
+       if (!e)
+               return NULL;
+       switch (e->type) {
+       case E_EQUAL:
+       case E_UNEQUAL:
+       case E_SYMBOL:
+       case E_CHOICE:
+               break;
+       default:
+               e->left.expr = expr_transform(e->left.expr);
+               e->right.expr = expr_transform(e->right.expr);
+       }
+
+       switch (e->type) {
+       case E_EQUAL:
+               if (e->left.sym->type != S_BOOLEAN)
+                       break;
+               if (e->right.sym == &symbol_no) {
+                       e->type = E_NOT;
+                       e->left.expr = expr_alloc_symbol(e->left.sym);
+                       e->right.sym = NULL;
+                       break;
+               }
+               if (e->right.sym == &symbol_mod) {
+                       printf("boolean symbol %s tested for 'm'? test forced to 'n'\n", e->left.sym->name);
+                       e->type = E_SYMBOL;
+                       e->left.sym = &symbol_no;
+                       e->right.sym = NULL;
+                       break;
+               }
+               if (e->right.sym == &symbol_yes) {
+                       e->type = E_SYMBOL;
+                       e->right.sym = NULL;
+                       break;
+               }
+               break;
+       case E_UNEQUAL:
+               if (e->left.sym->type != S_BOOLEAN)
+                       break;
+               if (e->right.sym == &symbol_no) {
+                       e->type = E_SYMBOL;
+                       e->right.sym = NULL;
+                       break;
+               }
+               if (e->right.sym == &symbol_mod) {
+                       printf("boolean symbol %s tested for 'm'? test forced to 'y'\n", e->left.sym->name);
+                       e->type = E_SYMBOL;
+                       e->left.sym = &symbol_yes;
+                       e->right.sym = NULL;
+                       break;
+               }
+               if (e->right.sym == &symbol_yes) {
+                       e->type = E_NOT;
+                       e->left.expr = expr_alloc_symbol(e->left.sym);
+                       e->right.sym = NULL;
+                       break;
+               }
+               break;
+       case E_NOT:
+               switch (e->left.expr->type) {
+               case E_NOT:
+                       // !!a -> a
+                       tmp = e->left.expr->left.expr;
+                       free(e->left.expr);
+                       free(e);
+                       e = tmp;
+                       e = expr_transform(e);
+                       break;
+               case E_EQUAL:
+               case E_UNEQUAL:
+                       // !a='x' -> a!='x'
+                       tmp = e->left.expr;
+                       free(e);
+                       e = tmp;
+                       e->type = e->type == E_EQUAL ? E_UNEQUAL : E_EQUAL;
+                       break;
+               case E_OR:
+                       // !(a || b) -> !a && !b
+                       tmp = e->left.expr;
+                       e->type = E_AND;
+                       e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
+                       tmp->type = E_NOT;
+                       tmp->right.expr = NULL;
+                       e = expr_transform(e);
+                       break;
+               case E_AND:
+                       // !(a && b) -> !a || !b
+                       tmp = e->left.expr;
+                       e->type = E_OR;
+                       e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
+                       tmp->type = E_NOT;
+                       tmp->right.expr = NULL;
+                       e = expr_transform(e);
+                       break;
+               case E_SYMBOL:
+                       if (e->left.expr->left.sym == &symbol_yes) {
+                               // !'y' -> 'n'
+                               tmp = e->left.expr;
+                               free(e);
+                               e = tmp;
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_no;
+                               break;
+                       }
+                       if (e->left.expr->left.sym == &symbol_mod) {
+                               // !'m' -> 'm'
+                               tmp = e->left.expr;
+                               free(e);
+                               e = tmp;
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_mod;
+                               break;
+                       }
+                       if (e->left.expr->left.sym == &symbol_no) {
+                               // !'n' -> 'y'
+                               tmp = e->left.expr;
+                               free(e);
+                               e = tmp;
+                               e->type = E_SYMBOL;
+                               e->left.sym = &symbol_yes;
+                               break;
+                       }
+                       break;
+               default:
+                       ;
+               }
+               break;
+       default:
+               ;
+       }
+       return e;
+}
+
+int expr_contains_symbol(struct expr *dep, struct symbol *sym)
+{
+       if (!dep)
+               return 0;
+
+       switch (dep->type) {
+       case E_AND:
+       case E_OR:
+               return expr_contains_symbol(dep->left.expr, sym) ||
+                      expr_contains_symbol(dep->right.expr, sym);
+       case E_SYMBOL:
+               return dep->left.sym == sym;
+       case E_EQUAL:
+       case E_UNEQUAL:
+               return dep->left.sym == sym ||
+                      dep->right.sym == sym;
+       case E_NOT:
+               return expr_contains_symbol(dep->left.expr, sym);
+       default:
+               ;
+       }
+       return 0;
+}
+
+bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
+{
+       if (!dep)
+               return false;
+
+       switch (dep->type) {
+       case E_AND:
+               return expr_depends_symbol(dep->left.expr, sym) ||
+                      expr_depends_symbol(dep->right.expr, sym);
+       case E_SYMBOL:
+               return dep->left.sym == sym;
+       case E_EQUAL:
+               if (dep->left.sym == sym) {
+                       if (dep->right.sym == &symbol_yes || dep->right.sym == &symbol_mod)
+                               return true;
+               }
+               break;
+       case E_UNEQUAL:
+               if (dep->left.sym == sym) {
+                       if (dep->right.sym == &symbol_no)
+                               return true;
+               }
+               break;
+       default:
+               ;
+       }
+       return false;
+}
+
+struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
+{
+       struct expr *tmp = NULL;
+       expr_extract_eq(E_AND, &tmp, ep1, ep2);
+       if (tmp) {
+               *ep1 = expr_eliminate_yn(*ep1);
+               *ep2 = expr_eliminate_yn(*ep2);
+       }
+       return tmp;
+}
+
+struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
+{
+       struct expr *tmp = NULL;
+       expr_extract_eq(E_OR, &tmp, ep1, ep2);
+       if (tmp) {
+               *ep1 = expr_eliminate_yn(*ep1);
+               *ep2 = expr_eliminate_yn(*ep2);
+       }
+       return tmp;
+}
+
+void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+       if (e1->type == type) {
+               expr_extract_eq(type, ep, &e1->left.expr, &e2);
+               expr_extract_eq(type, ep, &e1->right.expr, &e2);
+               return;
+       }
+       if (e2->type == type) {
+               expr_extract_eq(type, ep, ep1, &e2->left.expr);
+               expr_extract_eq(type, ep, ep1, &e2->right.expr);
+               return;
+       }
+       if (expr_eq(e1, e2)) {
+               *ep = *ep ? expr_alloc_two(type, *ep, e1) : e1;
+               expr_free(e2);
+               if (type == E_AND) {
+                       e1 = expr_alloc_symbol(&symbol_yes);
+                       e2 = expr_alloc_symbol(&symbol_yes);
+               } else if (type == E_OR) {
+                       e1 = expr_alloc_symbol(&symbol_no);
+                       e2 = expr_alloc_symbol(&symbol_no);
+               }
+       }
+#undef e1
+#undef e2
+}
+
+struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
+{
+       struct expr *e1, *e2;
+
+       if (!e) {
+               e = expr_alloc_symbol(sym);
+               if (type == E_UNEQUAL)
+                       e = expr_alloc_one(E_NOT, e);
+               return e;
+       }
+       switch (e->type) {
+       case E_AND:
+               e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
+               e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
+               if (sym == &symbol_yes)
+                       e = expr_alloc_two(E_AND, e1, e2);
+               if (sym == &symbol_no)
+                       e = expr_alloc_two(E_OR, e1, e2);
+               if (type == E_UNEQUAL)
+                       e = expr_alloc_one(E_NOT, e);
+               return e;
+       case E_OR:
+               e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
+               e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
+               if (sym == &symbol_yes)
+                       e = expr_alloc_two(E_OR, e1, e2);
+               if (sym == &symbol_no)
+                       e = expr_alloc_two(E_AND, e1, e2);
+               if (type == E_UNEQUAL)
+                       e = expr_alloc_one(E_NOT, e);
+               return e;
+       case E_NOT:
+               return expr_trans_compare(e->left.expr, type == E_EQUAL ? E_UNEQUAL : E_EQUAL, sym);
+       case E_UNEQUAL:
+       case E_EQUAL:
+               if (type == E_EQUAL) {
+                       if (sym == &symbol_yes)
+                               return expr_copy(e);
+                       if (sym == &symbol_mod)
+                               return expr_alloc_symbol(&symbol_no);
+                       if (sym == &symbol_no)
+                               return expr_alloc_one(E_NOT, expr_copy(e));
+               } else {
+                       if (sym == &symbol_yes)
+                               return expr_alloc_one(E_NOT, expr_copy(e));
+                       if (sym == &symbol_mod)
+                               return expr_alloc_symbol(&symbol_yes);
+                       if (sym == &symbol_no)
+                               return expr_copy(e);
+               }
+               break;
+       case E_SYMBOL:
+               return expr_alloc_comp(type, e->left.sym, sym);
+       case E_CHOICE:
+       case E_RANGE:
+       case E_NONE:
+               /* panic */;
+       }
+       return NULL;
+}
+
+tristate expr_calc_value(struct expr *e)
+{
+       tristate val1, val2;
+       const char *str1, *str2;
+
+       if (!e)
+               return yes;
+
+       switch (e->type) {
+       case E_SYMBOL:
+               sym_calc_value(e->left.sym);
+               return e->left.sym->curr.tri;
+       case E_AND:
+               val1 = expr_calc_value(e->left.expr);
+               val2 = expr_calc_value(e->right.expr);
+               return E_AND(val1, val2);
+       case E_OR:
+               val1 = expr_calc_value(e->left.expr);
+               val2 = expr_calc_value(e->right.expr);
+               return E_OR(val1, val2);
+       case E_NOT:
+               val1 = expr_calc_value(e->left.expr);
+               return E_NOT(val1);
+       case E_EQUAL:
+               sym_calc_value(e->left.sym);
+               sym_calc_value(e->right.sym);
+               str1 = sym_get_string_value(e->left.sym);
+               str2 = sym_get_string_value(e->right.sym);
+               return !strcmp(str1, str2) ? yes : no;
+       case E_UNEQUAL:
+               sym_calc_value(e->left.sym);
+               sym_calc_value(e->right.sym);
+               str1 = sym_get_string_value(e->left.sym);
+               str2 = sym_get_string_value(e->right.sym);
+               return !strcmp(str1, str2) ? no : yes;
+       default:
+               printf("expr_calc_value: %d?\n", e->type);
+               return no;
+       }
+}
+
+int expr_compare_type(enum expr_type t1, enum expr_type t2)
+{
+#if 0
+       return 1;
+#else
+       if (t1 == t2)
+               return 0;
+       switch (t1) {
+       case E_EQUAL:
+       case E_UNEQUAL:
+               if (t2 == E_NOT)
+                       return 1;
+       case E_NOT:
+               if (t2 == E_AND)
+                       return 1;
+       case E_AND:
+               if (t2 == E_OR)
+                       return 1;
+       case E_OR:
+               if (t2 == E_CHOICE)
+                       return 1;
+       case E_CHOICE:
+               if (t2 == 0)
+                       return 1;
+       default:
+               return -1;
+       }
+       printf("[%dgt%d?]", t1, t2);
+       return 0;
+#endif
+}
+
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)
+{
+       if (!e) {
+               fn(data, NULL, "y");
+               return;
+       }
+
+       if (expr_compare_type(prevtoken, e->type) > 0)
+               fn(data, NULL, "(");
+       switch (e->type) {
+       case E_SYMBOL:
+               if (e->left.sym->name)
+                       fn(data, e->left.sym, e->left.sym->name);
+               else
+                       fn(data, NULL, "<choice>");
+               break;
+       case E_NOT:
+               fn(data, NULL, "!");
+               expr_print(e->left.expr, fn, data, E_NOT);
+               break;
+       case E_EQUAL:
+               fn(data, e->left.sym, e->left.sym->name);
+               fn(data, NULL, "=");
+               fn(data, e->right.sym, e->right.sym->name);
+               break;
+       case E_UNEQUAL:
+               fn(data, e->left.sym, e->left.sym->name);
+               fn(data, NULL, "!=");
+               fn(data, e->right.sym, e->right.sym->name);
+               break;
+       case E_OR:
+               expr_print(e->left.expr, fn, data, E_OR);
+               fn(data, NULL, " || ");
+               expr_print(e->right.expr, fn, data, E_OR);
+               break;
+       case E_AND:
+               expr_print(e->left.expr, fn, data, E_AND);
+               fn(data, NULL, " && ");
+               expr_print(e->right.expr, fn, data, E_AND);
+               break;
+       case E_CHOICE:
+               fn(data, e->right.sym, e->right.sym->name);
+               if (e->left.expr) {
+                       fn(data, NULL, " ^ ");
+                       expr_print(e->left.expr, fn, data, E_CHOICE);
+               }
+               break;
+       case E_RANGE:
+               fn(data, NULL, "[");
+               fn(data, e->left.sym, e->left.sym->name);
+               fn(data, NULL, " ");
+               fn(data, e->right.sym, e->right.sym->name);
+               fn(data, NULL, "]");
+               break;
+       default:
+         {
+               char buf[32];
+               sprintf(buf, "<unknown type %d>", e->type);
+               fn(data, NULL, buf);
+               break;
+         }
+       }
+       if (expr_compare_type(prevtoken, e->type) > 0)
+               fn(data, NULL, ")");
+}
+
+static void expr_print_file_helper(void *data, struct symbol *sym, const char *str)
+{
+       fwrite(str, strlen(str), 1, data);
+}
+
+void expr_fprint(struct expr *e, FILE *out)
+{
+       expr_print(e, expr_print_file_helper, out, E_NONE);
+}
+
+static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
+{
+       str_append((struct gstr*)data, str);
+}
+
+void expr_gstr_print(struct expr *e, struct gstr *gs)
+{
+       expr_print(e, expr_print_gstr_helper, gs, E_NONE);
+}
diff --git a/kconfig/expr.h b/kconfig/expr.h
new file mode 100644 (file)
index 0000000..6084525
--- /dev/null
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#ifndef EXPR_H
+#define EXPR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
+struct file {
+       struct file *next;
+       struct file *parent;
+       char *name;
+       int lineno;
+       int flags;
+};
+
+#define FILE_BUSY              0x0001
+#define FILE_SCANNED           0x0002
+#define FILE_PRINTED           0x0004
+
+typedef enum tristate {
+       no, mod, yes
+} tristate;
+
+enum expr_type {
+       E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
+};
+
+union expr_data {
+       struct expr *expr;
+       struct symbol *sym;
+};
+
+struct expr {
+       enum expr_type type;
+       union expr_data left, right;
+};
+
+#define E_OR(dep1, dep2)       (((dep1)>(dep2))?(dep1):(dep2))
+#define E_AND(dep1, dep2)      (((dep1)<(dep2))?(dep1):(dep2))
+#define E_NOT(dep)             (2-(dep))
+
+struct expr_value {
+       struct expr *expr;
+       tristate tri;
+};
+
+struct symbol_value {
+       void *val;
+       tristate tri;
+};
+
+enum symbol_type {
+       S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
+};
+
+enum {
+       S_DEF_USER,             /* main user value */
+       S_DEF_AUTO,
+};
+
+struct symbol {
+       struct symbol *next;
+       char *name;
+       char *help;
+       enum symbol_type type;
+       struct symbol_value curr;
+       struct symbol_value def[4];
+       tristate visible;
+       int flags;
+       struct property *prop;
+       struct expr *dep, *dep2;
+       struct expr_value rev_dep;
+};
+
+#define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
+
+#define SYMBOL_CONST           0x0001
+#define SYMBOL_CHECK           0x0008
+#define SYMBOL_CHOICE          0x0010
+#define SYMBOL_CHOICEVAL       0x0020
+#define SYMBOL_PRINTED         0x0040
+#define SYMBOL_VALID           0x0080
+#define SYMBOL_OPTIONAL                0x0100
+#define SYMBOL_WRITE           0x0200
+#define SYMBOL_CHANGED         0x0400
+#define SYMBOL_AUTO            0x1000
+#define SYMBOL_CHECKED         0x2000
+#define SYMBOL_WARNED          0x8000
+#define SYMBOL_DEF             0x10000
+#define SYMBOL_DEF_USER                0x10000
+#define SYMBOL_DEF_AUTO                0x20000
+#define SYMBOL_DEF3            0x40000
+#define SYMBOL_DEF4            0x80000
+
+#define SYMBOL_MAXLENGTH       256
+#define SYMBOL_HASHSIZE                257
+#define SYMBOL_HASHMASK                0xff
+
+enum prop_type {
+       P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
+};
+
+struct property {
+       struct property *next;
+       struct symbol *sym;
+       enum prop_type type;
+       const char *text;
+       struct expr_value visible;
+       struct expr *expr;
+       struct menu *menu;
+       struct file *file;
+       int lineno;
+};
+
+#define for_all_properties(sym, st, tok) \
+       for (st = sym->prop; st; st = st->next) \
+               if (st->type == (tok))
+#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
+#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
+#define for_all_prompts(sym, st) \
+       for (st = sym->prop; st; st = st->next) \
+               if (st->text)
+
+struct menu {
+       struct menu *next;
+       struct menu *parent;
+       struct menu *list;
+       struct symbol *sym;
+       struct property *prompt;
+       struct expr *dep;
+       unsigned int flags;
+       //char *help;
+       struct file *file;
+       int lineno;
+       void *data;
+};
+
+#define MENU_CHANGED           0x0001
+#define MENU_ROOT              0x0002
+
+#ifndef SWIG
+
+extern struct file *file_list;
+extern struct file *current_file;
+struct file *lookup_file(const char *name);
+
+extern struct symbol symbol_yes, symbol_no, symbol_mod;
+extern struct symbol *modules_sym;
+extern struct symbol *sym_defconfig_list;
+extern int cdebug;
+struct expr *expr_alloc_symbol(struct symbol *sym);
+struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
+struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
+struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
+struct expr *expr_copy(struct expr *org);
+void expr_free(struct expr *e);
+int expr_eq(struct expr *e1, struct expr *e2);
+void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
+tristate expr_calc_value(struct expr *e);
+struct expr *expr_eliminate_yn(struct expr *e);
+struct expr *expr_trans_bool(struct expr *e);
+struct expr *expr_eliminate_dups(struct expr *e);
+struct expr *expr_transform(struct expr *e);
+int expr_contains_symbol(struct expr *dep, struct symbol *sym);
+bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
+struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
+struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
+void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
+struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
+
+void expr_fprint(struct expr *e, FILE *out);
+struct gstr; /* forward */
+void expr_gstr_print(struct expr *e, struct gstr *gs);
+
+static inline int expr_is_yes(struct expr *e)
+{
+       return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
+}
+
+static inline int expr_is_no(struct expr *e)
+{
+       return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* EXPR_H */
diff --git a/kconfig/lex.zconf.c_shipped b/kconfig/lex.zconf.c_shipped
new file mode 100644 (file)
index 0000000..800f8c7
--- /dev/null
@@ -0,0 +1,2350 @@
+
+#line 3 "scripts/kconfig/lex.zconf.c"
+
+#define  YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 33
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with  platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t; 
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN               (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN              (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN              (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX               (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX              (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX              (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX              (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX             (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX             (4294967295U)
+#endif
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else  /* ! __cplusplus */
+
+#if __STDC__
+
+#define YY_USE_CONST
+
+#endif /* __STDC__ */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index.  If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* Enter a start condition.  This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state.  The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE zconfrestart(zconfin  )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+extern int zconfleng;
+
+extern FILE *zconfin, *zconfout;
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+    #define YY_LESS_LINENO(n)
+    
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+       do \
+               { \
+               /* Undo effects of setting up zconftext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+               *yy_cp = (yy_hold_char); \
+               YY_RESTORE_YY_MORE_OFFSET \
+               (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+               YY_DO_BEFORE_ACTION; /* set up zconftext again */ \
+               } \
+       while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr)  )
+
+/* The following is because we cannot portably get our hands on size_t
+ * (without autoconf's help, which isn't available because we want
+ * flex-generated scanners to compile on their own).
+ */
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef unsigned int yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+       {
+       FILE *yy_input_file;
+
+       char *yy_ch_buf;                /* input buffer */
+       char *yy_buf_pos;               /* current position in input buffer */
+
+       /* Size of input buffer in bytes, not including room for EOB
+        * characters.
+        */
+       yy_size_t yy_buf_size;
+
+       /* Number of characters read into yy_ch_buf, not including EOB
+        * characters.
+        */
+       int yy_n_chars;
+
+       /* Whether we "own" the buffer - i.e., we know we created it,
+        * and can realloc() it to grow it, and should free() it to
+        * delete it.
+        */
+       int yy_is_our_buffer;
+
+       /* Whether this is an "interactive" input source; if so, and
+        * if we're using stdio for input, then we want to use getc()
+        * instead of fread(), to make sure we stop fetching input after
+        * each newline.
+        */
+       int yy_is_interactive;
+
+       /* Whether we're considered to be at the beginning of a line.
+        * If so, '^' rules will be active on the next match, otherwise
+        * not.
+        */
+       int yy_at_bol;
+
+    int yy_bs_lineno; /**< The line count. */
+    int yy_bs_column; /**< The column count. */
+    
+       /* Whether to try to fill the input buffer when we reach the
+        * end of it.
+        */
+       int yy_fill_buffer;
+
+       int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+       /* When an EOF's been seen but there's still some text to process
+        * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+        * shouldn't try reading from the input source any more.  We might
+        * still have a bunch of tokens to match, though, because of
+        * possible backing-up.
+        *
+        * When we actually see the EOF, we change the status to "new"
+        * (via zconfrestart()), so that the user can continue scanning by
+        * just pointing zconfin at a new input file.
+        */
+#define YY_BUFFER_EOF_PENDING 2
+
+       };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+                          : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* yy_hold_char holds the character lost when zconftext is formed. */
+static char yy_hold_char;
+static int yy_n_chars;         /* number of characters read into yy_ch_buf */
+int zconfleng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 0;                /* whether we need to initialize */
+static int yy_start = 0;       /* start state number */
+
+/* Flag which is used to allow zconfwrap()'s to do buffer switches
+ * instead of setting up a fresh zconfin.  A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+
+void zconfrestart (FILE *input_file  );
+void zconf_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
+YY_BUFFER_STATE zconf_create_buffer (FILE *file,int size  );
+void zconf_delete_buffer (YY_BUFFER_STATE b  );
+void zconf_flush_buffer (YY_BUFFER_STATE b  );
+void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer  );
+void zconfpop_buffer_state (void );
+
+static void zconfensure_buffer_stack (void );
+static void zconf_load_buffer_state (void );
+static void zconf_init_buffer (YY_BUFFER_STATE b,FILE *file  );
+
+#define YY_FLUSH_BUFFER zconf_flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE zconf_scan_buffer (char *base,yy_size_t size  );
+YY_BUFFER_STATE zconf_scan_string (yyconst char *yy_str  );
+YY_BUFFER_STATE zconf_scan_bytes (yyconst char *bytes,int len  );
+
+void *zconfalloc (yy_size_t  );
+void *zconfrealloc (void *,yy_size_t  );
+void zconffree (void *  );
+
+#define yy_new_buffer zconf_create_buffer
+
+#define yy_set_interactive(is_interactive) \
+       { \
+       if ( ! YY_CURRENT_BUFFER ){ \
+        zconfensure_buffer_stack (); \
+               YY_CURRENT_BUFFER_LVALUE =    \
+            zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
+       } \
+       YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+       }
+
+#define yy_set_bol(at_bol) \
+       { \
+       if ( ! YY_CURRENT_BUFFER ){\
+        zconfensure_buffer_stack (); \
+               YY_CURRENT_BUFFER_LVALUE =    \
+            zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
+       } \
+       YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+       }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define zconfwrap() 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+FILE *zconfin = (FILE *) 0, *zconfout = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int zconflineno;
+
+int zconflineno = 1;
+
+extern char *zconftext;
+#define yytext_ptr zconftext
+static yyconst flex_int16_t yy_nxt[][17] =
+    {
+    {
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0
+    },
+
+    {
+       11,   12,   13,   14,   12,   12,   15,   12,   12,   12,
+       12,   12,   12,   12,   12,   12,   12
+    },
+
+    {
+       11,   12,   13,   14,   12,   12,   15,   12,   12,   12,
+       12,   12,   12,   12,   12,   12,   12
+    },
+
+    {
+       11,   16,   16,   17,   16,   16,   16,   16,   16,   16,
+       16,   16,   16,   18,   16,   16,   16
+    },
+
+    {
+       11,   16,   16,   17,   16,   16,   16,   16,   16,   16,
+       16,   16,   16,   18,   16,   16,   16
+
+    },
+
+    {
+       11,   19,   20,   21,   19,   19,   19,   19,   19,   19,
+       19,   19,   19,   19,   19,   19,   19
+    },
+
+    {
+       11,   19,   20,   21,   19,   19,   19,   19,   19,   19,
+       19,   19,   19,   19,   19,   19,   19
+    },
+
+    {
+       11,   22,   22,   23,   22,   24,   22,   22,   24,   22,
+       22,   22,   22,   22,   22,   25,   22
+    },
+
+    {
+       11,   22,   22,   23,   22,   24,   22,   22,   24,   22,
+       22,   22,   22,   22,   22,   25,   22
+    },
+
+    {
+       11,   26,   26,   27,   28,   29,   30,   31,   29,   32,
+       33,   34,   35,   35,   36,   37,   38
+
+    },
+
+    {
+       11,   26,   26,   27,   28,   29,   30,   31,   29,   32,
+       33,   34,   35,   35,   36,   37,   38
+    },
+
+    {
+      -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,
+      -11,  -11,  -11,  -11,  -11,  -11,  -11
+    },
+
+    {
+       11,  -12,  -12,  -12,  -12,  -12,  -12,  -12,  -12,  -12,
+      -12,  -12,  -12,  -12,  -12,  -12,  -12
+    },
+
+    {
+       11,  -13,   39,   40,  -13,  -13,   41,  -13,  -13,  -13,
+      -13,  -13,  -13,  -13,  -13,  -13,  -13
+    },
+
+    {
+       11,  -14,  -14,  -14,  -14,  -14,  -14,  -14,  -14,  -14,
+      -14,  -14,  -14,  -14,  -14,  -14,  -14
+
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,  -16,  -16,  -16,  -16,  -16,  -16,  -16,  -16,  -16,
+      -16,  -16,  -16,  -16,  -16,  -16,  -16
+    },
+
+    {
+       11,  -17,  -17,  -17,  -17,  -17,  -17,  -17,  -17,  -17,
+      -17,  -17,  -17,  -17,  -17,  -17,  -17
+    },
+
+    {
+       11,  -18,  -18,  -18,  -18,  -18,  -18,  -18,  -18,  -18,
+      -18,  -18,  -18,   44,  -18,  -18,  -18
+    },
+
+    {
+       11,   45,   45,  -19,   45,   45,   45,   45,   45,   45,
+       45,   45,   45,   45,   45,   45,   45
+
+    },
+
+    {
+       11,  -20,   46,   47,  -20,  -20,  -20,  -20,  -20,  -20,
+      -20,  -20,  -20,  -20,  -20,  -20,  -20
+    },
+
+    {
+       11,   48,  -21,  -21,   48,   48,   48,   48,   48,   48,
+       48,   48,   48,   48,   48,   48,   48
+    },
+
+    {
+       11,   49,   49,   50,   49,  -22,   49,   49,  -22,   49,
+       49,   49,   49,   49,   49,  -22,   49
+    },
+
+    {
+       11,  -23,  -23,  -23,  -23,  -23,  -23,  -23,  -23,  -23,
+      -23,  -23,  -23,  -23,  -23,  -23,  -23
+    },
+
+    {
+       11,  -24,  -24,  -24,  -24,  -24,  -24,  -24,  -24,  -24,
+      -24,  -24,  -24,  -24,  -24,  -24,  -24
+
+    },
+
+    {
+       11,   51,   51,   52,   51,   51,   51,   51,   51,   51,
+       51,   51,   51,   51,   51,   51,   51
+    },
+
+    {
+       11,  -26,  -26,  -26,  -26,  -26,  -26,  -26,  -26,  -26,
+      -26,  -26,  -26,  -26,  -26,  -26,  -26
+    },
+
+    {
+       11,  -27,  -27,  -27,  -27,  -27,  -27,  -27,  -27,  -27,
+      -27,  -27,  -27,  -27,  -27,  -27,  -27
+    },
+
+    {
+       11,  -28,  -28,  -28,  -28,  -28,  -28,  -28,  -28,  -28,
+      -28,  -28,  -28,  -28,   53,  -28,  -28
+    },
+
+    {
+       11,  -29,  -29,  -29,  -29,  -29,  -29,  -29,  -29,  -29,
+      -29,  -29,  -29,  -29,  -29,  -29,  -29
+
+    },
+
+    {
+       11,   54,   54,  -30,   54,   54,   54,   54,   54,   54,
+       54,   54,   54,   54,   54,   54,   54
+    },
+
+    {
+       11,  -31,  -31,  -31,  -31,  -31,  -31,   55,  -31,  -31,
+      -31,  -31,  -31,  -31,  -31,  -31,  -31
+    },
+
+    {
+       11,  -32,  -32,  -32,  -32,  -32,  -32,  -32,  -32,  -32,
+      -32,  -32,  -32,  -32,  -32,  -32,  -32
+    },
+
+    {
+       11,  -33,  -33,  -33,  -33,  -33,  -33,  -33,  -33,  -33,
+      -33,  -33,  -33,  -33,  -33,  -33,  -33
+    },
+
+    {
+       11,  -34,  -34,  -34,  -34,  -34,  -34,  -34,  -34,  -34,
+      -34,   56,   57,   57,  -34,  -34,  -34
+
+    },
+
+    {
+       11,  -35,  -35,  -35,  -35,  -35,  -35,  -35,  -35,  -35,
+      -35,   57,   57,   57,  -35,  -35,  -35
+    },
+
+    {
+       11,  -36,  -36,  -36,  -36,  -36,  -36,  -36,  -36,  -36,
+      -36,  -36,  -36,  -36,  -36,  -36,  -36
+    },
+
+    {
+       11,  -37,  -37,   58,  -37,  -37,  -37,  -37,  -37,  -37,
+      -37,  -37,  -37,  -37,  -37,  -37,  -37
+    },
+
+    {
+       11,  -38,  -38,  -38,  -38,  -38,  -38,  -38,  -38,  -38,
+      -38,  -38,  -38,  -38,  -38,  -38,   59
+    },
+
+    {
+       11,  -39,   39,   40,  -39,  -39,   41,  -39,  -39,  -39,
+      -39,  -39,  -39,  -39,  -39,  -39,  -39
+
+    },
+
+    {
+       11,  -40,  -40,  -40,  -40,  -40,  -40,  -40,  -40,  -40,
+      -40,  -40,  -40,  -40,  -40,  -40,  -40
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,  -43,  -43,  -43,  -43,  -43,  -43,  -43,  -43,  -43,
+      -43,  -43,  -43,  -43,  -43,  -43,  -43
+    },
+
+    {
+       11,  -44,  -44,  -44,  -44,  -44,  -44,  -44,  -44,  -44,
+      -44,  -44,  -44,   44,  -44,  -44,  -44
+
+    },
+
+    {
+       11,   45,   45,  -45,   45,   45,   45,   45,   45,   45,
+       45,   45,   45,   45,   45,   45,   45
+    },
+
+    {
+       11,  -46,   46,   47,  -46,  -46,  -46,  -46,  -46,  -46,
+      -46,  -46,  -46,  -46,  -46,  -46,  -46
+    },
+
+    {
+       11,   48,  -47,  -47,   48,   48,   48,   48,   48,   48,
+       48,   48,   48,   48,   48,   48,   48
+    },
+
+    {
+       11,  -48,  -48,  -48,  -48,  -48,  -48,  -48,  -48,  -48,
+      -48,  -48,  -48,  -48,  -48,  -48,  -48
+    },
+
+    {
+       11,   49,   49,   50,   49,  -49,   49,   49,  -49,   49,
+       49,   49,   49,   49,   49,  -49,   49
+
+    },
+
+    {
+       11,  -50,  -50,  -50,  -50,  -50,  -50,  -50,  -50,  -50,
+      -50,  -50,  -50,  -50,  -50,  -50,  -50
+    },
+
+    {
+       11,  -51,  -51,   52,  -51,  -51,  -51,  -51,  -51,  -51,
+      -51,  -51,  -51,  -51,  -51,  -51,  -51
+    },
+
+    {
+       11,  -52,  -52,  -52,  -52,  -52,  -52,  -52,  -52,  -52,
+      -52,  -52,  -52,  -52,  -52,  -52,  -52
+    },
+
+    {
+       11,  -53,  -53,  -53,  -53,  -53,  -53,  -53,  -53,  -53,
+      -53,  -53,  -53,  -53,  -53,  -53,  -53
+    },
+
+    {
+       11,   54,   54,  -54,   54,   54,   54,   54,   54,   54,
+       54,   54,   54,   54,   54,   54,   54
+
+    },
+
+    {
+       11,  -55,  -55,  -55,  -55,  -55,  -55,  -55,  -55,  -55,
+      -55,  -55,  -55,  -55,  -55,  -55,  -55
+    },
+
+    {
+       11,  -56,  -56,  -56,  -56,  -56,  -56,  -56,  -56,  -56,
+      -56,   60,   57,   57,  -56,  -56,  -56
+    },
+
+    {
+       11,  -57,  -57,  -57,  -57,  -57,  -57,  -57,  -57,  -57,
+      -57,   57,   57,   57,  -57,  -57,  -57
+    },
+
+    {
+       11,  -58,  -58,  -58,  -58,  -58,  -58,  -58,  -58,  -58,
+      -58,  -58,  -58,  -58,  -58,  -58,  -58
+    },
+
+    {
+       11,  -59,  -59,  -59,  -59,  -59,  -59,  -59,  -59,  -59,
+      -59,  -59,  -59,  -59,  -59,  -59,  -59
+
+    },
+
+    {
+       11,  -60,  -60,  -60,  -60,  -60,  -60,  -60,  -60,  -60,
+      -60,   57,   57,   57,  -60,  -60,  -60
+    },
+
+    } ;
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[]  );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up zconftext.
+ */
+#define YY_DO_BEFORE_ACTION \
+       (yytext_ptr) = yy_bp; \
+       zconfleng = (size_t) (yy_cp - yy_bp); \
+       (yy_hold_char) = *yy_cp; \
+       *yy_cp = '\0'; \
+       (yy_c_buf_p) = yy_cp;
+
+#define YY_NUM_RULES 33
+#define YY_END_OF_BUFFER 34
+/* This struct is not used in this scanner,
+   but its presence is necessary. */
+struct yy_trans_info
+       {
+       flex_int32_t yy_verify;
+       flex_int32_t yy_nxt;
+       };
+static yyconst flex_int16_t yy_accept[61] =
+    {   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+       34,    5,    4,    2,    3,    7,    8,    6,   32,   29,
+       31,   24,   28,   27,   26,   22,   17,   13,   16,   20,
+       22,   11,   12,   19,   19,   14,   22,   22,    4,    2,
+        3,    3,    1,    6,   32,   29,   31,   30,   24,   23,
+       26,   25,   15,   20,    9,   19,   19,   21,   10,   18
+    } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    2,    4,    5,    6,    1,    1,    7,    8,    9,
+       10,    1,    1,    1,   11,   12,   12,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,    1,    1,    1,
+       14,    1,    1,    1,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+        1,   15,    1,    1,   13,    1,   13,   13,   13,   13,
+
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,    1,   16,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1
+    } ;
+
+extern int zconf_flex_debug;
+int zconf_flex_debug = 0;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *zconftext;
+
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+#define START_STRSIZE  16
+
+static struct {
+       struct file *file;
+       int lineno;
+} current_pos;
+
+static char *text;
+static int text_size, text_asize;
+
+struct buffer {
+        struct buffer *parent;
+        YY_BUFFER_STATE state;
+};
+
+struct buffer *current_buf;
+
+static int last_ts, first_ts;
+
+static void zconf_endhelp(void);
+static void zconf_endfile(void);
+
+void new_string(void)
+{
+       text = malloc(START_STRSIZE);
+       text_asize = START_STRSIZE;
+       text_size = 0;
+       *text = 0;
+}
+
+void append_string(const char *str, int size)
+{
+       int new_size = text_size + size + 1;
+       if (new_size > text_asize) {
+               new_size += START_STRSIZE - 1;
+               new_size &= -START_STRSIZE;
+               text = realloc(text, new_size);
+               text_asize = new_size;
+       }
+       memcpy(text + text_size, str, size);
+       text_size += size;
+       text[text_size] = 0;
+}
+
+void alloc_string(const char *str, int size)
+{
+       text = malloc(size + 1);
+       memcpy(text, str, size);
+       text[size] = 0;
+}
+
+#define INITIAL 0
+#define COMMAND 1
+#define HELP 2
+#define STRING 3
+#define PARAM 4
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+static int yy_init_globals (void );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int zconfwrap (void );
+#else
+extern int zconfwrap (void );
+#endif
+#endif
+
+    static void yyunput (int c,char *buf_ptr  );
+    
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO (void) fwrite( zconftext, zconfleng, 1, zconfout )
+#endif
+
+/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+       errno=0; \
+       while ( (result = read( fileno(zconfin), (char *) buf, max_size )) < 0 ) \
+       { \
+               if( errno != EINTR) \
+               { \
+                       YY_FATAL_ERROR( "input in flex scanner failed" ); \
+                       break; \
+               } \
+               errno=0; \
+               clearerr(zconfin); \
+       }\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int zconflex (void);
+
+#define YY_DECL int zconflex (void)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after zconftext and zconfleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+       YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+       register yy_state_type yy_current_state;
+       register char *yy_cp, *yy_bp;
+       register int yy_act;
+    
+       int str = 0;
+       int ts, i;
+
+       if ( !(yy_init) )
+               {
+               (yy_init) = 1;
+
+#ifdef YY_USER_INIT
+               YY_USER_INIT;
+#endif
+
+               if ( ! (yy_start) )
+                       (yy_start) = 1; /* first start state */
+
+               if ( ! zconfin )
+                       zconfin = stdin;
+
+               if ( ! zconfout )
+                       zconfout = stdout;
+
+               if ( ! YY_CURRENT_BUFFER ) {
+                       zconfensure_buffer_stack ();
+                       YY_CURRENT_BUFFER_LVALUE =
+                               zconf_create_buffer(zconfin,YY_BUF_SIZE );
+               }
+
+               zconf_load_buffer_state( );
+               }
+
+       while ( 1 )             /* loops until end-of-file is reached */
+               {
+               yy_cp = (yy_c_buf_p);
+
+               /* Support of zconftext. */
+               *yy_cp = (yy_hold_char);
+
+               /* yy_bp points to the position in yy_ch_buf of the start of
+                * the current run.
+                */
+               yy_bp = yy_cp;
+
+               yy_current_state = (yy_start);
+yy_match:
+               while ( (yy_current_state = yy_nxt[yy_current_state][ yy_ec[YY_SC_TO_UI(*yy_cp)]  ]) > 0 )
+                       ++yy_cp;
+
+               yy_current_state = -yy_current_state;
+
+yy_find_action:
+               yy_act = yy_accept[yy_current_state];
+
+               YY_DO_BEFORE_ACTION;
+
+do_action:     /* This label is used only to access EOF actions. */
+
+               switch ( yy_act )
+       { /* beginning of action switch */
+case 1:
+/* rule 1 can match eol */
+case 2:
+/* rule 2 can match eol */
+YY_RULE_SETUP
+{
+       current_file->lineno++;
+       return T_EOL;
+}
+       YY_BREAK
+case 3:
+YY_RULE_SETUP
+
+       YY_BREAK
+case 4:
+YY_RULE_SETUP
+{
+       BEGIN(COMMAND);
+}
+       YY_BREAK
+case 5:
+YY_RULE_SETUP
+{
+       unput(zconftext[0]);
+       BEGIN(COMMAND);
+}
+       YY_BREAK
+
+case 6:
+YY_RULE_SETUP
+{
+               struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+               BEGIN(PARAM);
+               current_pos.file = current_file;
+               current_pos.lineno = current_file->lineno;
+               if (id && id->flags & TF_COMMAND) {
+                       zconflval.id = id;
+                       return id->token;
+               }
+               alloc_string(zconftext, zconfleng);
+               zconflval.string = text;
+               return T_WORD;
+       }
+       YY_BREAK
+case 7:
+YY_RULE_SETUP
+
+       YY_BREAK
+case 8:
+/* rule 8 can match eol */
+YY_RULE_SETUP
+{
+               BEGIN(INITIAL);
+               current_file->lineno++;
+               return T_EOL;
+       }
+       YY_BREAK
+
+case 9:
+YY_RULE_SETUP
+return T_AND;
+       YY_BREAK
+case 10:
+YY_RULE_SETUP
+return T_OR;
+       YY_BREAK
+case 11:
+YY_RULE_SETUP
+return T_OPEN_PAREN;
+       YY_BREAK
+case 12:
+YY_RULE_SETUP
+return T_CLOSE_PAREN;
+       YY_BREAK
+case 13:
+YY_RULE_SETUP
+return T_NOT;
+       YY_BREAK
+case 14:
+YY_RULE_SETUP
+return T_EQUAL;
+       YY_BREAK
+case 15:
+YY_RULE_SETUP
+return T_UNEQUAL;
+       YY_BREAK
+case 16:
+YY_RULE_SETUP
+{
+               str = zconftext[0];
+               new_string();
+               BEGIN(STRING);
+       }
+       YY_BREAK
+case 17:
+/* rule 17 can match eol */
+YY_RULE_SETUP
+BEGIN(INITIAL); current_file->lineno++; return T_EOL;
+       YY_BREAK
+case 18:
+YY_RULE_SETUP
+/* ignore */
+       YY_BREAK
+case 19:
+YY_RULE_SETUP
+{
+               struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+               if (id && id->flags & TF_PARAM) {
+                       zconflval.id = id;
+                       return id->token;
+               }
+               alloc_string(zconftext, zconfleng);
+               zconflval.string = text;
+               return T_WORD;
+       }
+       YY_BREAK
+case 20:
+YY_RULE_SETUP
+/* comment */
+       YY_BREAK
+case 21:
+/* rule 21 can match eol */
+YY_RULE_SETUP
+current_file->lineno++;
+       YY_BREAK
+case 22:
+YY_RULE_SETUP
+
+       YY_BREAK
+case YY_STATE_EOF(PARAM):
+{
+               BEGIN(INITIAL);
+       }
+       YY_BREAK
+
+case 23:
+/* rule 23 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+               append_string(zconftext, zconfleng);
+               zconflval.string = text;
+               return T_WORD_QUOTE;
+       }
+       YY_BREAK
+case 24:
+YY_RULE_SETUP
+{
+               append_string(zconftext, zconfleng);
+       }
+       YY_BREAK
+case 25:
+/* rule 25 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+               append_string(zconftext + 1, zconfleng - 1);
+               zconflval.string = text;
+               return T_WORD_QUOTE;
+       }
+       YY_BREAK
+case 26:
+YY_RULE_SETUP
+{
+               append_string(zconftext + 1, zconfleng - 1);
+       }
+       YY_BREAK
+case 27:
+YY_RULE_SETUP
+{
+               if (str == zconftext[0]) {
+                       BEGIN(PARAM);
+                       zconflval.string = text;
+                       return T_WORD_QUOTE;
+               } else
+                       append_string(zconftext, 1);
+       }
+       YY_BREAK
+case 28:
+/* rule 28 can match eol */
+YY_RULE_SETUP
+{
+               printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
+               current_file->lineno++;
+               BEGIN(INITIAL);
+               return T_EOL;
+       }
+       YY_BREAK
+case YY_STATE_EOF(STRING):
+{
+               BEGIN(INITIAL);
+       }
+       YY_BREAK
+
+case 29:
+YY_RULE_SETUP
+{
+               ts = 0;
+               for (i = 0; i < zconfleng; i++) {
+                       if (zconftext[i] == '\t')
+                               ts = (ts & ~7) + 8;
+                       else
+                               ts++;
+               }
+               last_ts = ts;
+               if (first_ts) {
+                       if (ts < first_ts) {
+                               zconf_endhelp();
+                               return T_HELPTEXT;
+                       }
+                       ts -= first_ts;
+                       while (ts > 8) {
+                               append_string("        ", 8);
+                               ts -= 8;
+                       }
+                       append_string("        ", ts);
+               }
+       }
+       YY_BREAK
+case 30:
+/* rule 30 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+               current_file->lineno++;
+               zconf_endhelp();
+               return T_HELPTEXT;
+       }
+       YY_BREAK
+case 31:
+/* rule 31 can match eol */
+YY_RULE_SETUP
+{
+               current_file->lineno++;
+               append_string("\n", 1);
+       }
+       YY_BREAK
+case 32:
+YY_RULE_SETUP
+{
+               append_string(zconftext, zconfleng);
+               if (!first_ts)
+                       first_ts = last_ts;
+       }
+       YY_BREAK
+case YY_STATE_EOF(HELP):
+{
+               zconf_endhelp();
+               return T_HELPTEXT;
+       }
+       YY_BREAK
+
+case YY_STATE_EOF(INITIAL):
+case YY_STATE_EOF(COMMAND):
+{
+       if (current_file) {
+               zconf_endfile();
+               return T_EOL;
+       }
+       fclose(zconfin);
+       yyterminate();
+}
+       YY_BREAK
+case 33:
+YY_RULE_SETUP
+YY_FATAL_ERROR( "flex scanner jammed" );
+       YY_BREAK
+
+       case YY_END_OF_BUFFER:
+               {
+               /* Amount of text matched not including the EOB char. */
+               int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+               /* Undo the effects of YY_DO_BEFORE_ACTION. */
+               *yy_cp = (yy_hold_char);
+               YY_RESTORE_YY_MORE_OFFSET
+
+               if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+                       {
+                       /* We're scanning a new file or input source.  It's
+                        * possible that this happened because the user
+                        * just pointed zconfin at a new source and called
+                        * zconflex().  If so, then we have to assure
+                        * consistency between YY_CURRENT_BUFFER and our
+                        * globals.  Here is the right place to do so, because
+                        * this is the first action (other than possibly a
+                        * back-up) that will match for the new input source.
+                        */
+                       (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+                       YY_CURRENT_BUFFER_LVALUE->yy_input_file = zconfin;
+                       YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+                       }
+
+               /* Note that here we test for yy_c_buf_p "<=" to the position
+                * of the first EOB in the buffer, since yy_c_buf_p will
+                * already have been incremented past the NUL character
+                * (since all states make transitions on EOB to the
+                * end-of-buffer state).  Contrast this with the test
+                * in input().
+                */
+               if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+                       { /* This was really a NUL. */
+                       yy_state_type yy_next_state;
+
+                       (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+                       yy_current_state = yy_get_previous_state(  );
+
+                       /* Okay, we're now positioned to make the NUL
+                        * transition.  We couldn't have
+                        * yy_get_previous_state() go ahead and do it
+                        * for us because it doesn't know how to deal
+                        * with the possibility of jamming (and we don't
+                        * want to build jamming into it because then it
+                        * will run more slowly).
+                        */
+
+                       yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+                       yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+                       if ( yy_next_state )
+                               {
+                               /* Consume the NUL. */
+                               yy_cp = ++(yy_c_buf_p);
+                               yy_current_state = yy_next_state;
+                               goto yy_match;
+                               }
+
+                       else
+                               {
+                               yy_cp = (yy_c_buf_p);
+                               goto yy_find_action;
+                               }
+                       }
+
+               else switch ( yy_get_next_buffer(  ) )
+                       {
+                       case EOB_ACT_END_OF_FILE:
+                               {
+                               (yy_did_buffer_switch_on_eof) = 0;
+
+                               if ( zconfwrap( ) )
+                                       {
+                                       /* Note: because we've taken care in
+                                        * yy_get_next_buffer() to have set up
+                                        * zconftext, we can now set up
+                                        * yy_c_buf_p so that if some total
+                                        * hoser (like flex itself) wants to
+                                        * call the scanner after we return the
+                                        * YY_NULL, it'll still work - another
+                                        * YY_NULL will get returned.
+                                        */
+                                       (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+                                       yy_act = YY_STATE_EOF(YY_START);
+                                       goto do_action;
+                                       }
+
+                               else
+                                       {
+                                       if ( ! (yy_did_buffer_switch_on_eof) )
+                                               YY_NEW_FILE;
+                                       }
+                               break;
+                               }
+
+                       case EOB_ACT_CONTINUE_SCAN:
+                               (yy_c_buf_p) =
+                                       (yytext_ptr) + yy_amount_of_matched_text;
+
+                               yy_current_state = yy_get_previous_state(  );
+
+                               yy_cp = (yy_c_buf_p);
+                               yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+                               goto yy_match;
+
+                       case EOB_ACT_LAST_MATCH:
+                               (yy_c_buf_p) =
+                               &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+                               yy_current_state = yy_get_previous_state(  );
+
+                               yy_cp = (yy_c_buf_p);
+                               yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+                               goto yy_find_action;
+                       }
+               break;
+               }
+
+       default:
+               YY_FATAL_ERROR(
+                       "fatal flex scanner internal error--no action found" );
+       } /* end of action switch */
+               } /* end of scanning one token */
+} /* end of zconflex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ *     EOB_ACT_LAST_MATCH -
+ *     EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ *     EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (void)
+{
+       register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+       register char *source = (yytext_ptr);
+       register int number_to_move, i;
+       int ret_val;
+
+       if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+               YY_FATAL_ERROR(
+               "fatal flex scanner internal error--end of buffer missed" );
+
+       if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+               { /* Don't try to fill the buffer, so this is an EOF. */
+               if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+                       {
+                       /* We matched a single character, the EOB, so
+                        * treat this as a final EOF.
+                        */
+                       return EOB_ACT_END_OF_FILE;
+                       }
+
+               else
+                       {
+                       /* We matched some text prior to the EOB, first
+                        * process it.
+                        */
+                       return EOB_ACT_LAST_MATCH;
+                       }
+               }
+
+       /* Try to read more data. */
+
+       /* First move last chars to start of buffer. */
+       number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+       for ( i = 0; i < number_to_move; ++i )
+               *(dest++) = *(source++);
+
+       if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+               /* don't do the read, it's not guaranteed to return an EOF,
+                * just force an EOF
+                */
+               YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+       else
+               {
+                       int num_to_read =
+                       YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+               while ( num_to_read <= 0 )
+                       { /* Not enough room in the buffer - grow it. */
+
+                       /* just a shorter name for the current buffer */
+                       YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+
+                       int yy_c_buf_p_offset =
+                               (int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+                       if ( b->yy_is_our_buffer )
+                               {
+                               int new_size = b->yy_buf_size * 2;
+
+                               if ( new_size <= 0 )
+                                       b->yy_buf_size += b->yy_buf_size / 8;
+                               else
+                                       b->yy_buf_size *= 2;
+
+                               b->yy_ch_buf = (char *)
+                                       /* Include room in for 2 EOB chars. */
+                                       zconfrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
+                               }
+                       else
+                               /* Can't grow it, we don't own it. */
+                               b->yy_ch_buf = 0;
+
+                       if ( ! b->yy_ch_buf )
+                               YY_FATAL_ERROR(
+                               "fatal error - scanner input buffer overflow" );
+
+                       (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+                       num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+                                               number_to_move - 1;
+
+                       }
+
+               if ( num_to_read > YY_READ_BUF_SIZE )
+                       num_to_read = YY_READ_BUF_SIZE;
+
+               /* Read in more data. */
+               YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+                       (yy_n_chars), num_to_read );
+
+               YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+               }
+
+       if ( (yy_n_chars) == 0 )
+               {
+               if ( number_to_move == YY_MORE_ADJ )
+                       {
+                       ret_val = EOB_ACT_END_OF_FILE;
+                       zconfrestart(zconfin  );
+                       }
+
+               else
+                       {
+                       ret_val = EOB_ACT_LAST_MATCH;
+                       YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+                               YY_BUFFER_EOF_PENDING;
+                       }
+               }
+
+       else
+               ret_val = EOB_ACT_CONTINUE_SCAN;
+
+       (yy_n_chars) += number_to_move;
+       YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+       YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+       (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+       return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+    static yy_state_type yy_get_previous_state (void)
+{
+       register yy_state_type yy_current_state;
+       register char *yy_cp;
+    
+       yy_current_state = (yy_start);
+
+       for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+               {
+               yy_current_state = yy_nxt[yy_current_state][(*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1)];
+               }
+
+       return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ *     next_state = yy_try_NUL_trans( current_state );
+ */
+    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
+{
+       register int yy_is_jam;
+    
+       yy_current_state = yy_nxt[yy_current_state][1];
+       yy_is_jam = (yy_current_state <= 0);
+
+       return yy_is_jam ? 0 : yy_current_state;
+}
+
+    static void yyunput (int c, register char * yy_bp )
+{
+       register char *yy_cp;
+    
+    yy_cp = (yy_c_buf_p);
+
+       /* undo effects of setting up zconftext */
+       *yy_cp = (yy_hold_char);
+
+       if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+               { /* need to shift things up to make room */
+               /* +2 for EOB chars. */
+               register int number_to_move = (yy_n_chars) + 2;
+               register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
+                                       YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
+               register char *source =
+                               &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
+
+               while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+                       *--dest = *--source;
+
+               yy_cp += (int) (dest - source);
+               yy_bp += (int) (dest - source);
+               YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
+                       (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+
+               if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+                       YY_FATAL_ERROR( "flex scanner push-back overflow" );
+               }
+
+       *--yy_cp = (char) c;
+
+       (yytext_ptr) = yy_bp;
+       (yy_hold_char) = *yy_cp;
+       (yy_c_buf_p) = yy_cp;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+    static int yyinput (void)
+#else
+    static int input  (void)
+#endif
+
+{
+       int c;
+    
+       *(yy_c_buf_p) = (yy_hold_char);
+
+       if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+               {
+               /* yy_c_buf_p now points to the character we want to return.
+                * If this occurs *before* the EOB characters, then it's a
+                * valid NUL; if not, then we've hit the end of the buffer.
+                */
+               if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+                       /* This was really a NUL. */
+                       *(yy_c_buf_p) = '\0';
+
+               else
+                       { /* need more input */
+                       int offset = (yy_c_buf_p) - (yytext_ptr);
+                       ++(yy_c_buf_p);
+
+                       switch ( yy_get_next_buffer(  ) )
+                               {
+                               case EOB_ACT_LAST_MATCH:
+                                       /* This happens because yy_g_n_b()
+                                        * sees that we've accumulated a
+                                        * token and flags that we need to
+                                        * try matching the token before
+                                        * proceeding.  But for input(),
+                                        * there's no matching to consider.
+                                        * So convert the EOB_ACT_LAST_MATCH
+                                        * to EOB_ACT_END_OF_FILE.
+                                        */
+
+                                       /* Reset buffer status. */
+                                       zconfrestart(zconfin );
+
+                                       /*FALLTHROUGH*/
+
+                               case EOB_ACT_END_OF_FILE:
+                                       {
+                                       if ( zconfwrap( ) )
+                                               return EOF;
+
+                                       if ( ! (yy_did_buffer_switch_on_eof) )
+                                               YY_NEW_FILE;
+#ifdef __cplusplus
+                                       return yyinput();
+#else
+                                       return input();
+#endif
+                                       }
+
+                               case EOB_ACT_CONTINUE_SCAN:
+                                       (yy_c_buf_p) = (yytext_ptr) + offset;
+                                       break;
+                               }
+                       }
+               }
+
+       c = *(unsigned char *) (yy_c_buf_p);    /* cast for 8-bit char's */
+       *(yy_c_buf_p) = '\0';   /* preserve zconftext */
+       (yy_hold_char) = *++(yy_c_buf_p);
+
+       return c;
+}
+#endif /* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * 
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+    void zconfrestart  (FILE * input_file )
+{
+    
+       if ( ! YY_CURRENT_BUFFER ){
+        zconfensure_buffer_stack ();
+               YY_CURRENT_BUFFER_LVALUE =
+            zconf_create_buffer(zconfin,YY_BUF_SIZE );
+       }
+
+       zconf_init_buffer(YY_CURRENT_BUFFER,input_file );
+       zconf_load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * 
+ */
+    void zconf_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
+{
+    
+       /* TODO. We should be able to replace this entire function body
+        * with
+        *              zconfpop_buffer_state();
+        *              zconfpush_buffer_state(new_buffer);
+     */
+       zconfensure_buffer_stack ();
+       if ( YY_CURRENT_BUFFER == new_buffer )
+               return;
+
+       if ( YY_CURRENT_BUFFER )
+               {
+               /* Flush out information for old buffer. */
+               *(yy_c_buf_p) = (yy_hold_char);
+               YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+               YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+               }
+
+       YY_CURRENT_BUFFER_LVALUE = new_buffer;
+       zconf_load_buffer_state( );
+
+       /* We don't actually know whether we did this switch during
+        * EOF (zconfwrap()) processing, but the only time this flag
+        * is looked at is after zconfwrap() is called, so it's safe
+        * to go ahead and always set it.
+        */
+       (yy_did_buffer_switch_on_eof) = 1;
+}
+
+static void zconf_load_buffer_state  (void)
+{
+       (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+       (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+       zconfin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+       (yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * 
+ * @return the allocated buffer state.
+ */
+    YY_BUFFER_STATE zconf_create_buffer  (FILE * file, int  size )
+{
+       YY_BUFFER_STATE b;
+    
+       b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state )  );
+       if ( ! b )
+               YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
+
+       b->yy_buf_size = size;
+
+       /* yy_ch_buf has to be 2 characters longer than the size given because
+        * we need to put in 2 end-of-buffer characters.
+        */
+       b->yy_ch_buf = (char *) zconfalloc(b->yy_buf_size + 2  );
+       if ( ! b->yy_ch_buf )
+               YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
+
+       b->yy_is_our_buffer = 1;
+
+       zconf_init_buffer(b,file );
+
+       return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with zconf_create_buffer()
+ * 
+ */
+    void zconf_delete_buffer (YY_BUFFER_STATE  b )
+{
+    
+       if ( ! b )
+               return;
+
+       if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+               YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+       if ( b->yy_is_our_buffer )
+               zconffree((void *) b->yy_ch_buf  );
+
+       zconffree((void *) b  );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a zconfrestart() or at EOF.
+ */
+    static void zconf_init_buffer  (YY_BUFFER_STATE  b, FILE * file )
+
+{
+       int oerrno = errno;
+    
+       zconf_flush_buffer(b );
+
+       b->yy_input_file = file;
+       b->yy_fill_buffer = 1;
+
+    /* If b is the current buffer, then zconf_init_buffer was _probably_
+     * called from zconfrestart() or through yy_get_next_buffer.
+     * In that case, we don't want to reset the lineno or column.
+     */
+    if (b != YY_CURRENT_BUFFER){
+        b->yy_bs_lineno = 1;
+        b->yy_bs_column = 0;
+    }
+
+        b->yy_is_interactive = 0;
+    
+       errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * 
+ */
+    void zconf_flush_buffer (YY_BUFFER_STATE  b )
+{
+       if ( ! b )
+               return;
+
+       b->yy_n_chars = 0;
+
+       /* We always need two end-of-buffer characters.  The first causes
+        * a transition to the end-of-buffer state.  The second causes
+        * a jam in that state.
+        */
+       b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+       b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+       b->yy_buf_pos = &b->yy_ch_buf[0];
+
+       b->yy_at_bol = 1;
+       b->yy_buffer_status = YY_BUFFER_NEW;
+
+       if ( b == YY_CURRENT_BUFFER )
+               zconf_load_buffer_state( );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ *  the current state. This function will allocate the stack
+ *  if necessary.
+ *  @param new_buffer The new state.
+ *  
+ */
+void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer )
+{
+       if (new_buffer == NULL)
+               return;
+
+       zconfensure_buffer_stack();
+
+       /* This block is copied from zconf_switch_to_buffer. */
+       if ( YY_CURRENT_BUFFER )
+               {
+               /* Flush out information for old buffer. */
+               *(yy_c_buf_p) = (yy_hold_char);
+               YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+               YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+               }
+
+       /* Only push if top exists. Otherwise, replace top. */
+       if (YY_CURRENT_BUFFER)
+               (yy_buffer_stack_top)++;
+       YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+       /* copied from zconf_switch_to_buffer. */
+       zconf_load_buffer_state( );
+       (yy_did_buffer_switch_on_eof) = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ *  The next element becomes the new top.
+ *  
+ */
+void zconfpop_buffer_state (void)
+{
+       if (!YY_CURRENT_BUFFER)
+               return;
+
+       zconf_delete_buffer(YY_CURRENT_BUFFER );
+       YY_CURRENT_BUFFER_LVALUE = NULL;
+       if ((yy_buffer_stack_top) > 0)
+               --(yy_buffer_stack_top);
+
+       if (YY_CURRENT_BUFFER) {
+               zconf_load_buffer_state( );
+               (yy_did_buffer_switch_on_eof) = 1;
+       }
+}
+
+/* Allocates the stack if it does not exist.
+ *  Guarantees space for at least one push.
+ */
+static void zconfensure_buffer_stack (void)
+{
+       int num_to_alloc;
+    
+       if (!(yy_buffer_stack)) {
+
+               /* First allocation is just for 2 elements, since we don't know if this
+                * scanner will even need a stack. We use 2 instead of 1 to avoid an
+                * immediate realloc on the next call.
+         */
+               num_to_alloc = 1;
+               (yy_buffer_stack) = (struct yy_buffer_state**)zconfalloc
+                                                               (num_to_alloc * sizeof(struct yy_buffer_state*)
+                                                               );
+               
+               memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+                               
+               (yy_buffer_stack_max) = num_to_alloc;
+               (yy_buffer_stack_top) = 0;
+               return;
+       }
+
+       if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+               /* Increase the buffer to prepare for a possible push. */
+               int grow_size = 8 /* arbitrary grow size */;
+
+               num_to_alloc = (yy_buffer_stack_max) + grow_size;
+               (yy_buffer_stack) = (struct yy_buffer_state**)zconfrealloc
+                                                               ((yy_buffer_stack),
+                                                               num_to_alloc * sizeof(struct yy_buffer_state*)
+                                                               );
+
+               /* zero only the new slots.*/
+               memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+               (yy_buffer_stack_max) = num_to_alloc;
+       }
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * 
+ * @return the newly allocated buffer state object. 
+ */
+YY_BUFFER_STATE zconf_scan_buffer  (char * base, yy_size_t  size )
+{
+       YY_BUFFER_STATE b;
+    
+       if ( size < 2 ||
+            base[size-2] != YY_END_OF_BUFFER_CHAR ||
+            base[size-1] != YY_END_OF_BUFFER_CHAR )
+               /* They forgot to leave room for the EOB's. */
+               return 0;
+
+       b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state )  );
+       if ( ! b )
+               YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_buffer()" );
+
+       b->yy_buf_size = size - 2;      /* "- 2" to take care of EOB's */
+       b->yy_buf_pos = b->yy_ch_buf = base;
+       b->yy_is_our_buffer = 0;
+       b->yy_input_file = 0;
+       b->yy_n_chars = b->yy_buf_size;
+       b->yy_is_interactive = 0;
+       b->yy_at_bol = 1;
+       b->yy_fill_buffer = 0;
+       b->yy_buffer_status = YY_BUFFER_NEW;
+
+       zconf_switch_to_buffer(b  );
+
+       return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to zconflex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * 
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ *       zconf_scan_bytes() instead.
+ */
+YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr )
+{
+    
+       return zconf_scan_bytes(yystr,strlen(yystr) );
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to zconflex() will
+ * scan from a @e copy of @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
+ * 
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE zconf_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
+{
+       YY_BUFFER_STATE b;
+       char *buf;
+       yy_size_t n;
+       int i;
+    
+       /* Get memory for full buffer, including space for trailing EOB's. */
+       n = _yybytes_len + 2;
+       buf = (char *) zconfalloc(n  );
+       if ( ! buf )
+               YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_bytes()" );
+
+       for ( i = 0; i < _yybytes_len; ++i )
+               buf[i] = yybytes[i];
+
+       buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+       b = zconf_scan_buffer(buf,n );
+       if ( ! b )
+               YY_FATAL_ERROR( "bad buffer in zconf_scan_bytes()" );
+
+       /* It's okay to grow etc. this buffer, and we should throw it
+        * away when we're done.
+        */
+       b->yy_is_our_buffer = 1;
+
+       return b;
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg )
+{
+       (void) fprintf( stderr, "%s\n", msg );
+       exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+       do \
+               { \
+               /* Undo effects of setting up zconftext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+               zconftext[zconfleng] = (yy_hold_char); \
+               (yy_c_buf_p) = zconftext + yyless_macro_arg; \
+               (yy_hold_char) = *(yy_c_buf_p); \
+               *(yy_c_buf_p) = '\0'; \
+               zconfleng = yyless_macro_arg; \
+               } \
+       while ( 0 )
+
+/* Accessor  methods (get/set functions) to struct members. */
+
+/** Get the current line number.
+ * 
+ */
+int zconfget_lineno  (void)
+{
+        
+    return zconflineno;
+}
+
+/** Get the input stream.
+ * 
+ */
+FILE *zconfget_in  (void)
+{
+        return zconfin;
+}
+
+/** Get the output stream.
+ * 
+ */
+FILE *zconfget_out  (void)
+{
+        return zconfout;
+}
+
+/** Get the length of the current token.
+ * 
+ */
+int zconfget_leng  (void)
+{
+        return zconfleng;
+}
+
+/** Get the current token.
+ * 
+ */
+
+char *zconfget_text  (void)
+{
+        return zconftext;
+}
+
+/** Set the current line number.
+ * @param line_number
+ * 
+ */
+void zconfset_lineno (int  line_number )
+{
+    
+    zconflineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ * 
+ * @see zconf_switch_to_buffer
+ */
+void zconfset_in (FILE *  in_str )
+{
+        zconfin = in_str ;
+}
+
+void zconfset_out (FILE *  out_str )
+{
+        zconfout = out_str ;
+}
+
+int zconfget_debug  (void)
+{
+        return zconf_flex_debug;
+}
+
+void zconfset_debug (int  bdebug )
+{
+        zconf_flex_debug = bdebug ;
+}
+
+static int yy_init_globals (void)
+{
+        /* Initialization is the same as for the non-reentrant scanner.
+     * This function is called from zconflex_destroy(), so don't allocate here.
+     */
+
+    (yy_buffer_stack) = 0;
+    (yy_buffer_stack_top) = 0;
+    (yy_buffer_stack_max) = 0;
+    (yy_c_buf_p) = (char *) 0;
+    (yy_init) = 0;
+    (yy_start) = 0;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+    zconfin = stdin;
+    zconfout = stdout;
+#else
+    zconfin = (FILE *) 0;
+    zconfout = (FILE *) 0;
+#endif
+
+    /* For future reference: Set errno on error, since we are called by
+     * zconflex_init()
+     */
+    return 0;
+}
+
+/* zconflex_destroy is for both reentrant and non-reentrant scanners. */
+int zconflex_destroy  (void)
+{
+    
+    /* Pop the buffer stack, destroying each element. */
+       while(YY_CURRENT_BUFFER){
+               zconf_delete_buffer(YY_CURRENT_BUFFER  );
+               YY_CURRENT_BUFFER_LVALUE = NULL;
+               zconfpop_buffer_state();
+       }
+
+       /* Destroy the stack itself. */
+       zconffree((yy_buffer_stack) );
+       (yy_buffer_stack) = NULL;
+
+    /* Reset the globals. This is important in a non-reentrant scanner so the next time
+     * zconflex() is called, initialization will occur. */
+    yy_init_globals( );
+
+    return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+       register int i;
+       for ( i = 0; i < n; ++i )
+               s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+       register int n;
+       for ( n = 0; s[n]; ++n )
+               ;
+
+       return n;
+}
+#endif
+
+void *zconfalloc (yy_size_t  size )
+{
+       return (void *) malloc( size );
+}
+
+void *zconfrealloc  (void * ptr, yy_size_t  size )
+{
+       /* The cast to (char *) in the following accommodates both
+        * implementations that use char* generic pointers, and those
+        * that use void* generic pointers.  It works with the latter
+        * because both ANSI C and C++ allow castless assignment from
+        * any pointer type to void*, and deal with argument conversions
+        * as though doing an assignment.
+        */
+       return (void *) realloc( (char *) ptr, size );
+}
+
+void zconffree (void * ptr )
+{
+       free( (char *) ptr );   /* see zconfrealloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+void zconf_starthelp(void)
+{
+       new_string();
+       last_ts = first_ts = 0;
+       BEGIN(HELP);
+}
+
+static void zconf_endhelp(void)
+{
+       zconflval.string = text;
+       BEGIN(INITIAL);
+}
+
+/*
+ * Try to open specified file with following names:
+ * ./name
+ * $(srctree)/name
+ * The latter is used when srctree is separate from objtree
+ * when compiling the kernel.
+ * Return NULL if file is not found.
+ */
+FILE *zconf_fopen(const char *name)
+{
+       char *env, fullname[PATH_MAX+1];
+       FILE *f;
+
+       f = fopen(name, "r");
+       if (!f && name[0] != '/') {
+               env = getenv(SRCTREE);
+               if (env) {
+                       sprintf(fullname, "%s/%s", env, name);
+                       f = fopen(fullname, "r");
+               }
+       }
+       return f;
+}
+
+void zconf_initscan(const char *name)
+{
+       zconfin = zconf_fopen(name);
+       if (!zconfin) {
+               printf("can't find file %s\n", name);
+               exit(1);
+       }
+
+       current_buf = malloc(sizeof(*current_buf));
+       memset(current_buf, 0, sizeof(*current_buf));
+
+       current_file = file_lookup(name);
+       current_file->lineno = 1;
+       current_file->flags = FILE_BUSY;
+}
+
+void zconf_nextfile(const char *name)
+{
+       struct file *file = file_lookup(name);
+       struct buffer *buf = malloc(sizeof(*buf));
+       memset(buf, 0, sizeof(*buf));
+
+       current_buf->state = YY_CURRENT_BUFFER;
+       zconfin = zconf_fopen(name);
+       if (!zconfin) {
+               printf("%s:%d: can't open file \"%s\"\n", zconf_curname(), zconf_lineno(), name);
+               exit(1);
+       }
+       zconf_switch_to_buffer(zconf_create_buffer(zconfin,YY_BUF_SIZE));
+       buf->parent = current_buf;
+       current_buf = buf;
+
+       if (file->flags & FILE_BUSY) {
+               printf("recursive scan (%s)?\n", name);
+               exit(1);
+       }
+       if (file->flags & FILE_SCANNED) {
+               printf("file %s already scanned?\n", name);
+               exit(1);
+       }
+       file->flags |= FILE_BUSY;
+       file->lineno = 1;
+       file->parent = current_file;
+       current_file = file;
+}
+
+static void zconf_endfile(void)
+{
+       struct buffer *parent;
+
+       current_file->flags |= FILE_SCANNED;
+       current_file->flags &= ~FILE_BUSY;
+       current_file = current_file->parent;
+
+       parent = current_buf->parent;
+       if (parent) {
+               fclose(zconfin);
+               zconf_delete_buffer(YY_CURRENT_BUFFER);
+               zconf_switch_to_buffer(parent->state);
+       }
+       free(current_buf);
+       current_buf = parent;
+}
+
+int zconf_lineno(void)
+{
+       return current_pos.lineno;
+}
+
+char *zconf_curname(void)
+{
+       return current_pos.file ? current_pos.file->name : "<none>";
+}
+
diff --git a/kconfig/lkc.h b/kconfig/lkc.h
new file mode 100644 (file)
index 0000000..c186efa
--- /dev/null
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#ifndef LKC_H
+#define LKC_H
+
+//#define PROJECT_NAME "Linux kernel"
+#define PROJECT_NAME "BusyBox"
+
+#include "expr.h"
+
+#ifndef KBUILD_NO_NLS
+# include <libintl.h>
+#else
+# define gettext(Msgid) ((const char *) (Msgid))
+# define textdomain(Domainname) ((const char *) (Domainname))
+# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef LKC_DIRECT_LINK
+#define P(name,type,arg)       extern type name arg
+#else
+#include "lkc_defs.h"
+#define P(name,type,arg)       extern type (*name ## _p) arg
+#endif
+#include "lkc_proto.h"
+#undef P
+
+#define SRCTREE "srctree"
+
+#define PACKAGE "linux"
+#define LOCALEDIR "/usr/share/locale"
+
+#define _(text) gettext(text)
+#define N_(text) (text)
+
+
+#define TF_COMMAND     0x0001
+#define TF_PARAM       0x0002
+#define TF_OPTION      0x0004
+
+#define T_OPT_MODULES          1
+#define T_OPT_DEFCONFIG_LIST   2
+
+struct kconf_id {
+       int name;
+       int token;
+       unsigned int flags;
+       enum symbol_type stype;
+};
+
+int zconfparse(void);
+void zconfdump(FILE *out);
+
+extern int zconfdebug;
+void zconf_starthelp(void);
+FILE *zconf_fopen(const char *name);
+void zconf_initscan(const char *name);
+void zconf_nextfile(const char *name);
+int zconf_lineno(void);
+char *zconf_curname(void);
+
+/* confdata.c */
+char *conf_get_default_confname(void);
+
+/* kconfig_load.c */
+void kconfig_load(void);
+
+/* menu.c */
+void menu_init(void);
+struct menu *menu_add_menu(void);
+void menu_end_menu(void);
+void menu_add_entry(struct symbol *sym);
+void menu_end_entry(void);
+void menu_add_dep(struct expr *dep);
+struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
+struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
+void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
+void menu_add_option(int token, char *arg);
+void menu_finalize(struct menu *parent);
+void menu_set_type(int type);
+
+/* util.c */
+struct file *file_lookup(const char *name);
+int file_write_dep(const char *name);
+
+struct gstr {
+       size_t len;
+       char  *s;
+};
+struct gstr str_new(void);
+struct gstr str_assign(const char *s);
+void str_free(struct gstr *gs);
+void str_append(struct gstr *gs, const char *s);
+void str_printf(struct gstr *gs, const char *fmt, ...);
+const char *str_get(struct gstr *gs);
+
+/* symbol.c */
+void sym_init(void);
+void sym_clear_all_valid(void);
+void sym_set_all_changed(void);
+void sym_set_changed(struct symbol *sym);
+struct symbol *sym_check_deps(struct symbol *sym);
+struct property *prop_alloc(enum prop_type type, struct symbol *sym);
+struct symbol *prop_get_symbol(struct property *prop);
+
+static inline tristate sym_get_tristate_value(struct symbol *sym)
+{
+       return sym->curr.tri;
+}
+
+
+static inline struct symbol *sym_get_choice_value(struct symbol *sym)
+{
+       return (struct symbol *)sym->curr.val;
+}
+
+static inline bool sym_set_choice_value(struct symbol *ch, struct symbol *chval)
+{
+       return sym_set_tristate_value(chval, yes);
+}
+
+static inline bool sym_is_choice(struct symbol *sym)
+{
+       return sym->flags & SYMBOL_CHOICE ? true : false;
+}
+
+static inline bool sym_is_choice_value(struct symbol *sym)
+{
+       return sym->flags & SYMBOL_CHOICEVAL ? true : false;
+}
+
+static inline bool sym_is_optional(struct symbol *sym)
+{
+       return sym->flags & SYMBOL_OPTIONAL ? true : false;
+}
+
+static inline bool sym_has_value(struct symbol *sym)
+{
+       return sym->flags & SYMBOL_DEF_USER ? true : false;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LKC_H */
diff --git a/kconfig/lkc_proto.h b/kconfig/lkc_proto.h
new file mode 100644 (file)
index 0000000..a263746
--- /dev/null
@@ -0,0 +1,42 @@
+
+/* confdata.c */
+P(conf_parse,void,(const char *name));
+P(conf_read,int,(const char *name));
+P(conf_read_simple,int,(const char *name, int));
+P(conf_write,int,(const char *name));
+P(conf_write_autoconf,int,(void));
+
+/* menu.c */
+P(rootmenu,struct menu,);
+
+P(menu_is_visible,bool,(struct menu *menu));
+P(menu_get_prompt,const char *,(struct menu *menu));
+P(menu_get_root_menu,struct menu *,(struct menu *menu));
+P(menu_get_parent_menu,struct menu *,(struct menu *menu));
+
+/* symbol.c */
+P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
+P(sym_change_count,int,);
+
+P(sym_lookup,struct symbol *,(const char *name, int isconst));
+P(sym_find,struct symbol *,(const char *name));
+P(sym_re_search,struct symbol **,(const char *pattern));
+P(sym_type_name,const char *,(enum symbol_type type));
+P(sym_calc_value,void,(struct symbol *sym));
+P(sym_get_type,enum symbol_type,(struct symbol *sym));
+P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
+P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
+P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
+P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
+P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
+P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
+P(sym_is_changable,bool,(struct symbol *sym));
+P(sym_get_choice_prop,struct property *,(struct symbol *sym));
+P(sym_get_default_prop,struct property *,(struct symbol *sym));
+P(sym_get_string_value,const char *,(struct symbol *sym));
+
+P(prop_get_type_name,const char *,(enum prop_type type));
+
+/* expr.c */
+P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
+P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
diff --git a/kconfig/lxdialog/BIG.FAT.WARNING b/kconfig/lxdialog/BIG.FAT.WARNING
new file mode 100644 (file)
index 0000000..a8999d8
--- /dev/null
@@ -0,0 +1,4 @@
+This is NOT the official version of dialog.  This version has been
+significantly modified from the original.  It is for use by the Linux
+kernel configuration script.  Please do not bother Savio Lam with 
+questions about this program.
diff --git a/kconfig/lxdialog/check-lxdialog.sh b/kconfig/lxdialog/check-lxdialog.sh
new file mode 100644 (file)
index 0000000..120d624
--- /dev/null
@@ -0,0 +1,84 @@
+#!/bin/sh
+# Check ncurses compatibility
+
+# What library to link
+ldflags()
+{
+       $cc -print-file-name=libncursesw.so | grep -q /
+       if [ $? -eq 0 ]; then
+               echo '-lncursesw'
+               exit
+       fi
+       $cc -print-file-name=libncurses.so | grep -q /
+       if [ $? -eq 0 ]; then
+               echo '-lncurses'
+               exit
+       fi
+       $cc -print-file-name=libcurses.so | grep -q /
+       if [ $? -eq 0 ]; then
+               echo '-lcurses'
+               exit
+       fi
+       exit 1
+}
+
+# Where is ncurses.h?
+ccflags()
+{
+       if [ -f /usr/include/ncurses/ncurses.h ]; then
+               echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
+       elif [ -f /usr/include/ncurses/curses.h ]; then
+               echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
+       elif [ -f /usr/include/ncurses.h ]; then
+               echo '-DCURSES_LOC="<ncurses.h>"'
+       else
+               echo '-DCURSES_LOC="<curses.h>"'
+       fi
+}
+
+# Temp file, try to clean up after us
+tmp=.lxdialog.tmp
+trap "rm -f $tmp" 0 1 2 3 15
+
+# Check if we can link to ncurses
+check() {
+       echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null
+       if [ $? != 0 ]; then
+               echo " *** Unable to find the ncurses libraries."          1>&2
+               echo " *** make menuconfig require the ncurses libraries"  1>&2
+               echo " *** "                                               1>&2
+               echo " *** Install ncurses (ncurses-devel) and try again"  1>&2
+               echo " *** "                                               1>&2
+               exit 1
+       fi
+}
+
+usage() {
+       printf "Usage: $0 [-check compiler options|-header|-library]\n"
+}
+
+if [ $# == 0 ]; then
+       usage
+       exit 1
+fi
+
+cc=""
+case "$1" in
+       "-check")
+               shift
+               cc="$@"
+               check
+               ;;
+       "-ccflags")
+               ccflags
+               ;;
+       "-ldflags")
+               shift
+               cc="$@"
+               ldflags
+               ;;
+       "*")
+               usage
+               exit 1
+               ;;
+esac
diff --git a/kconfig/lxdialog/checklist.c b/kconfig/lxdialog/checklist.c
new file mode 100644 (file)
index 0000000..cf69708
--- /dev/null
@@ -0,0 +1,325 @@
+/*
+ *  checklist.c -- implements the checklist box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *     Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
+ *     Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+static int list_width, check_x, item_x;
+
+/*
+ * Print list item
+ */
+static void print_item(WINDOW * win, int choice, int selected)
+{
+       int i;
+
+       /* Clear 'residue' of last item */
+       wattrset(win, dlg.menubox.atr);
+       wmove(win, choice, 0);
+       for (i = 0; i < list_width; i++)
+               waddch(win, ' ');
+
+       wmove(win, choice, check_x);
+       wattrset(win, selected ? dlg.check_selected.atr
+                : dlg.check.atr);
+       wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' ');
+
+       wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr);
+       mvwaddch(win, choice, item_x, item_str()[0]);
+       wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
+       waddstr(win, (char *)item_str() + 1);
+       if (selected) {
+               wmove(win, choice, check_x + 1);
+               wrefresh(win);
+       }
+}
+
+/*
+ * Print the scroll indicators.
+ */
+static void print_arrows(WINDOW * win, int choice, int item_no, int scroll,
+            int y, int x, int height)
+{
+       wmove(win, y, x);
+
+       if (scroll > 0) {
+               wattrset(win, dlg.uarrow.atr);
+               waddch(win, ACS_UARROW);
+               waddstr(win, "(-)");
+       } else {
+               wattrset(win, dlg.menubox.atr);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+       }
+
+       y = y + height + 1;
+       wmove(win, y, x);
+
+       if ((height < item_no) && (scroll + choice < item_no - 1)) {
+               wattrset(win, dlg.darrow.atr);
+               waddch(win, ACS_DARROW);
+               waddstr(win, "(+)");
+       } else {
+               wattrset(win, dlg.menubox_border.atr);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+       }
+}
+
+/*
+ *  Display the termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+       int x = width / 2 - 11;
+       int y = height - 2;
+
+       print_button(dialog, "Select", y, x, selected == 0);
+       print_button(dialog, " Help ", y, x + 14, selected == 1);
+
+       wmove(dialog, y, x + 1 + 14 * selected);
+       wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box with a list of options that can be turned on or off
+ * in the style of radiolist (only one option turned on at a time).
+ */
+int dialog_checklist(const char *title, const char *prompt, int height,
+                    int width, int list_height)
+{
+       int i, x, y, box_x, box_y;
+       int key = 0, button = 0, choice = 0, scroll = 0, max_choice;
+       WINDOW *dialog, *list;
+
+       /* which item to highlight */
+       item_foreach() {
+               if (item_is_tag('X'))
+                       choice = item_n();
+               if (item_is_selected()) {
+                       choice = item_n();
+                       break;
+               }
+       }
+
+do_resize:
+       if (getmaxy(stdscr) < (height + 6))
+               return -ERRDISPLAYTOOSMALL;
+       if (getmaxx(stdscr) < (width + 6))
+               return -ERRDISPLAYTOOSMALL;
+
+       max_choice = MIN(list_height, item_count());
+
+       /* center dialog box on screen */
+       x = (COLS - width) / 2;
+       y = (LINES - height) / 2;
+
+       draw_shadow(stdscr, y, x, height, width);
+
+       dialog = newwin(height, width, y, x);
+       keypad(dialog, TRUE);
+
+       draw_box(dialog, 0, 0, height, width,
+                dlg.dialog.atr, dlg.border.atr);
+       wattrset(dialog, dlg.border.atr);
+       mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+       for (i = 0; i < width - 2; i++)
+               waddch(dialog, ACS_HLINE);
+       wattrset(dialog, dlg.dialog.atr);
+       waddch(dialog, ACS_RTEE);
+
+       print_title(dialog, title, width);
+
+       wattrset(dialog, dlg.dialog.atr);
+       print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+       list_width = width - 6;
+       box_y = height - list_height - 5;
+       box_x = (width - list_width) / 2 - 1;
+
+       /* create new window for the list */
+       list = subwin(dialog, list_height, list_width, y + box_y + 1,
+                     x + box_x + 1);
+
+       keypad(list, TRUE);
+
+       /* draw a box around the list items */
+       draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
+                dlg.menubox_border.atr, dlg.menubox.atr);
+
+       /* Find length of longest item in order to center checklist */
+       check_x = 0;
+       item_foreach()
+               check_x = MAX(check_x, strlen(item_str()) + 4);
+
+       check_x = (list_width - check_x) / 2;
+       item_x = check_x + 4;
+
+       if (choice >= list_height) {
+               scroll = choice - list_height + 1;
+               choice -= scroll;
+       }
+
+       /* Print the list */
+       for (i = 0; i < max_choice; i++) {
+               item_set(scroll + i);
+               print_item(list, i, i == choice);
+       }
+
+       print_arrows(dialog, choice, item_count(), scroll,
+                    box_y, box_x + check_x + 5, list_height);
+
+       print_buttons(dialog, height, width, 0);
+
+       wnoutrefresh(dialog);
+       wnoutrefresh(list);
+       doupdate();
+
+       while (key != KEY_ESC) {
+               key = wgetch(dialog);
+
+               for (i = 0; i < max_choice; i++) {
+                       item_set(i + scroll);
+                       if (toupper(key) == toupper(item_str()[0]))
+                               break;
+               }
+
+               if (i < max_choice || key == KEY_UP || key == KEY_DOWN ||
+                   key == '+' || key == '-') {
+                       if (key == KEY_UP || key == '-') {
+                               if (!choice) {
+                                       if (!scroll)
+                                               continue;
+                                       /* Scroll list down */
+                                       if (list_height > 1) {
+                                               /* De-highlight current first item */
+                                               item_set(scroll);
+                                               print_item(list, 0, FALSE);
+                                               scrollok(list, TRUE);
+                                               wscrl(list, -1);
+                                               scrollok(list, FALSE);
+                                       }
+                                       scroll--;
+                                       item_set(scroll);
+                                       print_item(list, 0, TRUE);
+                                       print_arrows(dialog, choice, item_count(),
+                                                    scroll, box_y, box_x + check_x + 5, list_height);
+
+                                       wnoutrefresh(dialog);
+                                       wrefresh(list);
+
+                                       continue;       /* wait for another key press */
+                               } else
+                                       i = choice - 1;
+                       } else if (key == KEY_DOWN || key == '+') {
+                               if (choice == max_choice - 1) {
+                                       if (scroll + choice >= item_count() - 1)
+                                               continue;
+                                       /* Scroll list up */
+                                       if (list_height > 1) {
+                                               /* De-highlight current last item before scrolling up */
+                                               item_set(scroll + max_choice - 1);
+                                               print_item(list,
+                                                           max_choice - 1,
+                                                           FALSE);
+                                               scrollok(list, TRUE);
+                                               wscrl(list, 1);
+                                               scrollok(list, FALSE);
+                                       }
+                                       scroll++;
+                                       item_set(scroll + max_choice - 1);
+                                       print_item(list, max_choice - 1, TRUE);
+
+                                       print_arrows(dialog, choice, item_count(),
+                                                    scroll, box_y, box_x + check_x + 5, list_height);
+
+                                       wnoutrefresh(dialog);
+                                       wrefresh(list);
+
+                                       continue;       /* wait for another key press */
+                               } else
+                                       i = choice + 1;
+                       }
+                       if (i != choice) {
+                               /* De-highlight current item */
+                               item_set(scroll + choice);
+                               print_item(list, choice, FALSE);
+                               /* Highlight new item */
+                               choice = i;
+                               item_set(scroll + choice);
+                               print_item(list, choice, TRUE);
+                               wnoutrefresh(dialog);
+                               wrefresh(list);
+                       }
+                       continue;       /* wait for another key press */
+               }
+               switch (key) {
+               case 'H':
+               case 'h':
+               case '?':
+                       button = 1;
+                       /* fall-through */
+               case 'S':
+               case 's':
+               case ' ':
+               case '\n':
+                       item_foreach()
+                               item_set_selected(0);
+                       item_set(scroll + choice);
+                       item_set_selected(1);
+                       delwin(list);
+                       delwin(dialog);
+                       return button;
+               case TAB:
+               case KEY_LEFT:
+               case KEY_RIGHT:
+                       button = ((key == KEY_LEFT ? --button : ++button) < 0)
+                           ? 1 : (button > 1 ? 0 : button);
+
+                       print_buttons(dialog, height, width, button);
+                       wrefresh(dialog);
+                       break;
+               case 'X':
+               case 'x':
+                       key = KEY_ESC;
+                       break;
+               case KEY_ESC:
+                       key = on_key_esc(dialog);
+                       break;
+               case KEY_RESIZE:
+                       delwin(list);
+                       delwin(dialog);
+                       on_key_resize();
+                       goto do_resize;
+               }
+
+               /* Now, update everything... */
+               doupdate();
+       }
+       delwin(list);
+       delwin(dialog);
+       return key;             /* ESC pressed */
+}
diff --git a/kconfig/lxdialog/dialog.h b/kconfig/lxdialog/dialog.h
new file mode 100644 (file)
index 0000000..fd695e1
--- /dev/null
@@ -0,0 +1,224 @@
+/*
+ *  dialog.h -- common declarations for all dialog modules
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#ifdef __sun__
+#define CURS_MACROS
+#endif
+#include CURSES_LOC
+
+/*
+ * Colors in ncurses 1.9.9e do not work properly since foreground and
+ * background colors are OR'd rather than separately masked.  This version
+ * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
+ * with standard curses.  The simplest fix (to make this work with standard
+ * curses) uses the wbkgdset() function, not used in the original hack.
+ * Turn it off if we're building with 1.9.9e, since it just confuses things.
+ */
+#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
+#define OLD_NCURSES 1
+#undef  wbkgdset
+#define wbkgdset(w,p)          /*nothing */
+#else
+#define OLD_NCURSES 0
+#endif
+
+#define TR(params) _tracef params
+
+#define KEY_ESC 27
+#define TAB 9
+#define MAX_LEN 2048
+#define BUF_SIZE (10*1024)
+#define MIN(x,y) (x < y ? x : y)
+#define MAX(x,y) (x > y ? x : y)
+
+#ifndef ACS_ULCORNER
+#define ACS_ULCORNER '+'
+#endif
+#ifndef ACS_LLCORNER
+#define ACS_LLCORNER '+'
+#endif
+#ifndef ACS_URCORNER
+#define ACS_URCORNER '+'
+#endif
+#ifndef ACS_LRCORNER
+#define ACS_LRCORNER '+'
+#endif
+#ifndef ACS_HLINE
+#define ACS_HLINE '-'
+#endif
+#ifndef ACS_VLINE
+#define ACS_VLINE '|'
+#endif
+#ifndef ACS_LTEE
+#define ACS_LTEE '+'
+#endif
+#ifndef ACS_RTEE
+#define ACS_RTEE '+'
+#endif
+#ifndef ACS_UARROW
+#define ACS_UARROW '^'
+#endif
+#ifndef ACS_DARROW
+#define ACS_DARROW 'v'
+#endif
+
+/* error return codes */
+#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)
+
+/*
+ *   Color definitions
+ */
+struct dialog_color {
+       chtype atr;     /* Color attribute */
+       int fg;         /* foreground */
+       int bg;         /* background */
+       int hl;         /* highlight this item */
+};
+
+struct dialog_info {
+       const char *backtitle;
+       struct dialog_color screen;
+       struct dialog_color shadow;
+       struct dialog_color dialog;
+       struct dialog_color title;
+       struct dialog_color border;
+       struct dialog_color button_active;
+       struct dialog_color button_inactive;
+       struct dialog_color button_key_active;
+       struct dialog_color button_key_inactive;
+       struct dialog_color button_label_active;
+       struct dialog_color button_label_inactive;
+       struct dialog_color inputbox;
+       struct dialog_color inputbox_border;
+       struct dialog_color searchbox;
+       struct dialog_color searchbox_title;
+       struct dialog_color searchbox_border;
+       struct dialog_color position_indicator;
+       struct dialog_color menubox;
+       struct dialog_color menubox_border;
+       struct dialog_color item;
+       struct dialog_color item_selected;
+       struct dialog_color tag;
+       struct dialog_color tag_selected;
+       struct dialog_color tag_key;
+       struct dialog_color tag_key_selected;
+       struct dialog_color check;
+       struct dialog_color check_selected;
+       struct dialog_color uarrow;
+       struct dialog_color darrow;
+};
+
+/*
+ * Global variables
+ */
+extern struct dialog_info dlg;
+extern char dialog_input_result[];
+
+/*
+ * Function prototypes
+ */
+
+/* item list as used by checklist and menubox */
+void item_reset(void);
+void item_make(const char *fmt, ...);
+void item_add_str(const char *fmt, ...);
+void item_set_tag(char tag);
+void item_set_data(void *p);
+void item_set_selected(int val);
+int item_activate_selected(void);
+void *item_data(void);
+char item_tag(void);
+
+/* item list manipulation for lxdialog use */
+#define MAXITEMSTR 200
+struct dialog_item {
+       char str[MAXITEMSTR];   /* promtp displayed */
+       char tag;
+       void *data;     /* pointer to menu item - used by menubox+checklist */
+       int selected;   /* Set to 1 by dialog_*() function if selected. */
+};
+
+/* list of lialog_items */
+struct dialog_list {
+       struct dialog_item node;
+       struct dialog_list *next;
+};
+
+extern struct dialog_list *item_cur;
+extern struct dialog_list item_nil;
+extern struct dialog_list *item_head;
+
+int item_count(void);
+void item_set(int n);
+int item_n(void);
+const char *item_str(void);
+int item_is_selected(void);
+int item_is_tag(char tag);
+#define item_foreach() \
+       for (item_cur = item_head ? item_head: item_cur; \
+            item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
+
+/* generic key handlers */
+int on_key_esc(WINDOW *win);
+int on_key_resize(void);
+
+void init_dialog(const char *backtitle);
+void reset_dialog(void);
+void end_dialog(void);
+void attr_clear(WINDOW * win, int height, int width, chtype attr);
+void dialog_clear(void);
+void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
+void print_button(WINDOW * win, const char *label, int y, int x, int selected);
+void print_title(WINDOW *dialog, const char *title, int width);
+void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
+             chtype border);
+void draw_shadow(WINDOW * win, int y, int x, int height, int width);
+
+int first_alpha(const char *string, const char *exempt);
+int dialog_yesno(const char *title, const char *prompt, int height, int width);
+int dialog_msgbox(const char *title, const char *prompt, int height,
+                 int width, int pause);
+int dialog_textbox(const char *title, const char *file, int height, int width);
+int dialog_menu(const char *title, const char *prompt,
+               const void *selected, int *s_scroll);
+int dialog_checklist(const char *title, const char *prompt, int height,
+                    int width, int list_height);
+extern char dialog_input_result[];
+int dialog_inputbox(const char *title, const char *prompt, int height,
+                   int width, const char *init);
+
+/*
+ * This is the base for fictitious keys, which activate
+ * the buttons.
+ *
+ * Mouse-generated keys are the following:
+ *   -- the first 32 are used as numbers, in addition to '0'-'9'
+ *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
+ *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
+ */
+#define M_EVENT (KEY_MAX+1)
diff --git a/kconfig/lxdialog/inputbox.c b/kconfig/lxdialog/inputbox.c
new file mode 100644 (file)
index 0000000..05e7206
--- /dev/null
@@ -0,0 +1,238 @@
+/*
+ *  inputbox.c -- implements the input box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+char dialog_input_result[MAX_LEN + 1];
+
+/*
+ *  Print the termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+       int x = width / 2 - 11;
+       int y = height - 2;
+
+       print_button(dialog, "  Ok  ", y, x, selected == 0);
+       print_button(dialog, " Help ", y, x + 14, selected == 1);
+
+       wmove(dialog, y, x + 1 + 14 * selected);
+       wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box for inputing a string
+ */
+int dialog_inputbox(const char *title, const char *prompt, int height, int width,
+                    const char *init)
+{
+       int i, x, y, box_y, box_x, box_width;
+       int input_x = 0, scroll = 0, key = 0, button = -1;
+       char *instr = dialog_input_result;
+       WINDOW *dialog;
+
+       if (!init)
+               instr[0] = '\0';
+       else
+               strcpy(instr, init);
+
+do_resize:
+       if (getmaxy(stdscr) <= (height - 2))
+               return -ERRDISPLAYTOOSMALL;
+       if (getmaxx(stdscr) <= (width - 2))
+               return -ERRDISPLAYTOOSMALL;
+
+       /* center dialog box on screen */
+       x = (COLS - width) / 2;
+       y = (LINES - height) / 2;
+
+       draw_shadow(stdscr, y, x, height, width);
+
+       dialog = newwin(height, width, y, x);
+       keypad(dialog, TRUE);
+
+       draw_box(dialog, 0, 0, height, width,
+                dlg.dialog.atr, dlg.border.atr);
+       wattrset(dialog, dlg.border.atr);
+       mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+       for (i = 0; i < width - 2; i++)
+               waddch(dialog, ACS_HLINE);
+       wattrset(dialog, dlg.dialog.atr);
+       waddch(dialog, ACS_RTEE);
+
+       print_title(dialog, title, width);
+
+       wattrset(dialog, dlg.dialog.atr);
+       print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+       /* Draw the input field box */
+       box_width = width - 6;
+       getyx(dialog, y, x);
+       box_y = y + 2;
+       box_x = (width - box_width) / 2;
+       draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
+                dlg.border.atr, dlg.dialog.atr);
+
+       print_buttons(dialog, height, width, 0);
+
+       /* Set up the initial value */
+       wmove(dialog, box_y, box_x);
+       wattrset(dialog, dlg.inputbox.atr);
+
+       input_x = strlen(instr);
+
+       if (input_x >= box_width) {
+               scroll = input_x - box_width + 1;
+               input_x = box_width - 1;
+               for (i = 0; i < box_width - 1; i++)
+                       waddch(dialog, instr[scroll + i]);
+       } else {
+               waddstr(dialog, instr);
+       }
+
+       wmove(dialog, box_y, box_x + input_x);
+
+       wrefresh(dialog);
+
+       while (key != KEY_ESC) {
+               key = wgetch(dialog);
+
+               if (button == -1) {     /* Input box selected */
+                       switch (key) {
+                       case TAB:
+                       case KEY_UP:
+                       case KEY_DOWN:
+                               break;
+                       case KEY_LEFT:
+                               continue;
+                       case KEY_RIGHT:
+                               continue;
+                       case KEY_BACKSPACE:
+                       case 127:
+                               if (input_x || scroll) {
+                                       wattrset(dialog, dlg.inputbox.atr);
+                                       if (!input_x) {
+                                               scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);
+                                               wmove(dialog, box_y, box_x);
+                                               for (i = 0; i < box_width; i++)
+                                                       waddch(dialog,
+                                                              instr[scroll + input_x + i] ?
+                                                              instr[scroll + input_x + i] : ' ');
+                                               input_x = strlen(instr) - scroll;
+                                       } else
+                                               input_x--;
+                                       instr[scroll + input_x] = '\0';
+                                       mvwaddch(dialog, box_y, input_x + box_x, ' ');
+                                       wmove(dialog, box_y, input_x + box_x);
+                                       wrefresh(dialog);
+                               }
+                               continue;
+                       default:
+                               if (key < 0x100 && isprint(key)) {
+                                       if (scroll + input_x < MAX_LEN) {
+                                               wattrset(dialog, dlg.inputbox.atr);
+                                               instr[scroll + input_x] = key;
+                                               instr[scroll + input_x + 1] = '\0';
+                                               if (input_x == box_width - 1) {
+                                                       scroll++;
+                                                       wmove(dialog, box_y, box_x);
+                                                       for (i = 0; i < box_width - 1; i++)
+                                                               waddch(dialog, instr [scroll + i]);
+                                               } else {
+                                                       wmove(dialog, box_y, input_x++ + box_x);
+                                                       waddch(dialog, key);
+                                               }
+                                               wrefresh(dialog);
+                                       } else
+                                               flash();        /* Alarm user about overflow */
+                                       continue;
+                               }
+                       }
+               }
+               switch (key) {
+               case 'O':
+               case 'o':
+                       delwin(dialog);
+                       return 0;
+               case 'H':
+               case 'h':
+                       delwin(dialog);
+                       return 1;
+               case KEY_UP:
+               case KEY_LEFT:
+                       switch (button) {
+                       case -1:
+                               button = 1;     /* Indicates "Cancel" button is selected */
+                               print_buttons(dialog, height, width, 1);
+                               break;
+                       case 0:
+                               button = -1;    /* Indicates input box is selected */
+                               print_buttons(dialog, height, width, 0);
+                               wmove(dialog, box_y, box_x + input_x);
+                               wrefresh(dialog);
+                               break;
+                       case 1:
+                               button = 0;     /* Indicates "OK" button is selected */
+                               print_buttons(dialog, height, width, 0);
+                               break;
+                       }
+                       break;
+               case TAB:
+               case KEY_DOWN:
+               case KEY_RIGHT:
+                       switch (button) {
+                       case -1:
+                               button = 0;     /* Indicates "OK" button is selected */
+                               print_buttons(dialog, height, width, 0);
+                               break;
+                       case 0:
+                               button = 1;     /* Indicates "Cancel" button is selected */
+                               print_buttons(dialog, height, width, 1);
+                               break;
+                       case 1:
+                               button = -1;    /* Indicates input box is selected */
+                               print_buttons(dialog, height, width, 0);
+                               wmove(dialog, box_y, box_x + input_x);
+                               wrefresh(dialog);
+                               break;
+                       }
+                       break;
+               case ' ':
+               case '\n':
+                       delwin(dialog);
+                       return (button == -1 ? 0 : button);
+               case 'X':
+               case 'x':
+                       key = KEY_ESC;
+                       break;
+               case KEY_ESC:
+                       key = on_key_esc(dialog);
+                       break;
+               case KEY_RESIZE:
+                       delwin(dialog);
+                       on_key_resize();
+                       goto do_resize;
+               }
+       }
+
+       delwin(dialog);
+       return KEY_ESC;         /* ESC pressed */
+}
diff --git a/kconfig/lxdialog/menubox.c b/kconfig/lxdialog/menubox.c
new file mode 100644 (file)
index 0000000..0d83159
--- /dev/null
@@ -0,0 +1,434 @@
+/*
+ *  menubox.c -- implements the menu box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ *  Changes by Clifford Wolf (god@clifford.at)
+ *
+ *  [ 1998-06-13 ]
+ *
+ *    *)  A bugfix for the Page-Down problem
+ *
+ *    *)  Formerly when I used Page Down and Page Up, the cursor would be set 
+ *        to the first position in the menu box.  Now lxdialog is a bit
+ *        smarter and works more like other menu systems (just have a look at
+ *        it).
+ *
+ *    *)  Formerly if I selected something my scrolling would be broken because
+ *        lxdialog is re-invoked by the Menuconfig shell script, can't
+ *        remember the last scrolling position, and just sets it so that the
+ *        cursor is at the bottom of the box.  Now it writes the temporary file
+ *        lxdialog.scrltmp which contains this information. The file is
+ *        deleted by lxdialog if the user leaves a submenu or enters a new
+ *        one, but it would be nice if Menuconfig could make another "rm -f"
+ *        just to be sure.  Just try it out - you will recognise a difference!
+ *
+ *  [ 1998-06-14 ]
+ *
+ *    *)  Now lxdialog is crash-safe against broken "lxdialog.scrltmp" files
+ *        and menus change their size on the fly.
+ *
+ *    *)  If for some reason the last scrolling position is not saved by
+ *        lxdialog, it sets the scrolling so that the selected item is in the
+ *        middle of the menu box, not at the bottom.
+ *
+ * 02 January 1999, Michael Elizabeth Chastain (mec@shout.net)
+ * Reset 'scroll' to 0 if the value from lxdialog.scrltmp is bogus.
+ * This fixes a bug in Menuconfig where using ' ' to descend into menus
+ * would leave mis-synchronized lxdialog.scrltmp files lying around,
+ * fscanf would read in 'scroll', and eventually that value would get used.
+ */
+
+#include "dialog.h"
+
+static int menu_width, item_x;
+
+/*
+ * Print menu item
+ */
+static void do_print_item(WINDOW * win, const char *item, int line_y,
+                          int selected, int hotkey)
+{
+       int j;
+       char *menu_item = malloc(menu_width + 1);
+
+       strncpy(menu_item, item, menu_width - item_x);
+       menu_item[menu_width - item_x] = '\0';
+       j = first_alpha(menu_item, "YyNnMmHh");
+
+       /* Clear 'residue' of last item */
+       wattrset(win, dlg.menubox.atr);
+       wmove(win, line_y, 0);
+#if OLD_NCURSES
+       {
+               int i;
+               for (i = 0; i < menu_width; i++)
+                       waddch(win, ' ');
+       }
+#else
+       wclrtoeol(win);
+#endif
+       wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
+       mvwaddstr(win, line_y, item_x, menu_item);
+       if (hotkey) {
+               wattrset(win, selected ? dlg.tag_key_selected.atr
+                        : dlg.tag_key.atr);
+               mvwaddch(win, line_y, item_x + j, menu_item[j]);
+       }
+       if (selected) {
+               wmove(win, line_y, item_x + 1);
+       }
+       free(menu_item);
+       wrefresh(win);
+}
+
+#define print_item(index, choice, selected)                            \
+do {                                                                   \
+       item_set(index);                                                \
+       do_print_item(menu, item_str(), choice, selected, !item_is_tag(':')); \
+} while (0)
+
+/*
+ * Print the scroll indicators.
+ */
+static void print_arrows(WINDOW * win, int item_no, int scroll, int y, int x,
+                        int height)
+{
+       int cur_y, cur_x;
+
+       getyx(win, cur_y, cur_x);
+
+       wmove(win, y, x);
+
+       if (scroll > 0) {
+               wattrset(win, dlg.uarrow.atr);
+               waddch(win, ACS_UARROW);
+               waddstr(win, "(-)");
+       } else {
+               wattrset(win, dlg.menubox.atr);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+       }
+
+       y = y + height + 1;
+       wmove(win, y, x);
+       wrefresh(win);
+
+       if ((height < item_no) && (scroll + height < item_no)) {
+               wattrset(win, dlg.darrow.atr);
+               waddch(win, ACS_DARROW);
+               waddstr(win, "(+)");
+       } else {
+               wattrset(win, dlg.menubox_border.atr);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+               waddch(win, ACS_HLINE);
+       }
+
+       wmove(win, cur_y, cur_x);
+       wrefresh(win);
+}
+
+/*
+ * Display the termination buttons.
+ */
+static void print_buttons(WINDOW * win, int height, int width, int selected)
+{
+       int x = width / 2 - 16;
+       int y = height - 2;
+
+       print_button(win, "Select", y, x, selected == 0);
+       print_button(win, " Exit ", y, x + 12, selected == 1);
+       print_button(win, " Help ", y, x + 24, selected == 2);
+
+       wmove(win, y, x + 1 + 12 * selected);
+       wrefresh(win);
+}
+
+/* scroll up n lines (n may be negative) */
+static void do_scroll(WINDOW *win, int *scroll, int n)
+{
+       /* Scroll menu up */
+       scrollok(win, TRUE);
+       wscrl(win, n);
+       scrollok(win, FALSE);
+       *scroll = *scroll + n;
+       wrefresh(win);
+}
+
+/*
+ * Display a menu for choosing among a number of options
+ */
+int dialog_menu(const char *title, const char *prompt,
+                const void *selected, int *s_scroll)
+{
+       int i, j, x, y, box_x, box_y;
+       int height, width, menu_height;
+       int key = 0, button = 0, scroll = 0, choice = 0;
+       int first_item =  0, max_choice;
+       WINDOW *dialog, *menu;
+
+do_resize:
+       height = getmaxy(stdscr);
+       width = getmaxx(stdscr);
+       if (height < 15 || width < 65)
+               return -ERRDISPLAYTOOSMALL;
+
+       height -= 4;
+       width  -= 5;
+       menu_height = height - 10;
+
+       max_choice = MIN(menu_height, item_count());
+
+       /* center dialog box on screen */
+       x = (COLS - width) / 2;
+       y = (LINES - height) / 2;
+
+       draw_shadow(stdscr, y, x, height, width);
+
+       dialog = newwin(height, width, y, x);
+       keypad(dialog, TRUE);
+
+       draw_box(dialog, 0, 0, height, width,
+                dlg.dialog.atr, dlg.border.atr);
+       wattrset(dialog, dlg.border.atr);
+       mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+       for (i = 0; i < width - 2; i++)
+               waddch(dialog, ACS_HLINE);
+       wattrset(dialog, dlg.dialog.atr);
+       wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
+       waddch(dialog, ACS_RTEE);
+
+       print_title(dialog, title, width);
+
+       wattrset(dialog, dlg.dialog.atr);
+       print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+       menu_width = width - 6;
+       box_y = height - menu_height - 5;
+       box_x = (width - menu_width) / 2 - 1;
+
+       /* create new window for the menu */
+       menu = subwin(dialog, menu_height, menu_width,
+                     y + box_y + 1, x + box_x + 1);
+       keypad(menu, TRUE);
+
+       /* draw a box around the menu items */
+       draw_box(dialog, box_y, box_x, menu_height + 2, menu_width + 2,
+                dlg.menubox_border.atr, dlg.menubox.atr);
+
+       if (menu_width >= 80)
+               item_x = (menu_width - 70) / 2;
+       else
+               item_x = 4;
+
+       /* Set choice to default item */
+       item_foreach()
+               if (selected && (selected == item_data()))
+                       choice = item_n();
+       /* get the saved scroll info */
+       scroll = *s_scroll;
+       if ((scroll <= choice) && (scroll + max_choice > choice) &&
+          (scroll >= 0) && (scroll + max_choice <= item_count())) {
+               first_item = scroll;
+               choice = choice - scroll;
+       } else {
+               scroll = 0;
+       }
+       if ((choice >= max_choice)) {
+               if (choice >= item_count() - max_choice / 2)
+                       scroll = first_item = item_count() - max_choice;
+               else
+                       scroll = first_item = choice - max_choice / 2;
+               choice = choice - scroll;
+       }
+
+       /* Print the menu */
+       for (i = 0; i < max_choice; i++) {
+               print_item(first_item + i, i, i == choice);
+       }
+
+       wnoutrefresh(menu);
+
+       print_arrows(dialog, item_count(), scroll,
+                    box_y, box_x + item_x + 1, menu_height);
+
+       print_buttons(dialog, height, width, 0);
+       wmove(menu, choice, item_x + 1);
+       wrefresh(menu);
+
+       while (key != KEY_ESC) {
+               key = wgetch(menu);
+
+               if (key < 256 && isalpha(key))
+                       key = tolower(key);
+
+               if (strchr("ynmh", key))
+                       i = max_choice;
+               else {
+                       for (i = choice + 1; i < max_choice; i++) {
+                               item_set(scroll + i);
+                               j = first_alpha(item_str(), "YyNnMmHh");
+                               if (key == tolower(item_str()[j]))
+                                       break;
+                       }
+                       if (i == max_choice)
+                               for (i = 0; i < max_choice; i++) {
+                                       item_set(scroll + i);
+                                       j = first_alpha(item_str(), "YyNnMmHh");
+                                       if (key == tolower(item_str()[j]))
+                                               break;
+                               }
+               }
+
+               if (i < max_choice ||
+                   key == KEY_UP || key == KEY_DOWN ||
+                   key == '-' || key == '+' ||
+                   key == KEY_PPAGE || key == KEY_NPAGE) {
+                       /* Remove highligt of current item */
+                       print_item(scroll + choice, choice, FALSE);
+
+                       if (key == KEY_UP || key == '-') {
+                               if (choice < 2 && scroll) {
+                                       /* Scroll menu down */
+                                       do_scroll(menu, &scroll, -1);
+
+                                       print_item(scroll, 0, FALSE);
+                               } else
+                                       choice = MAX(choice - 1, 0);
+
+                       } else if (key == KEY_DOWN || key == '+') {
+                               print_item(scroll+choice, choice, FALSE);
+
+                               if ((choice > max_choice - 3) &&
+                                   (scroll + max_choice < item_count())) {
+                                       /* Scroll menu up */
+                                       do_scroll(menu, &scroll, 1);
+
+                                       print_item(scroll+max_choice - 1,
+                                                  max_choice - 1, FALSE);
+                               } else
+                                       choice = MIN(choice + 1, max_choice - 1);
+
+                       } else if (key == KEY_PPAGE) {
+                               scrollok(menu, TRUE);
+                               for (i = 0; (i < max_choice); i++) {
+                                       if (scroll > 0) {
+                                               do_scroll(menu, &scroll, -1);
+                                               print_item(scroll, 0, FALSE);
+                                       } else {
+                                               if (choice > 0)
+                                                       choice--;
+                                       }
+                               }
+
+                       } else if (key == KEY_NPAGE) {
+                               for (i = 0; (i < max_choice); i++) {
+                                       if (scroll + max_choice < item_count()) {
+                                               do_scroll(menu, &scroll, 1);
+                                               print_item(scroll+max_choice-1,
+                                                          max_choice - 1, FALSE);
+                                       } else {
+                                               if (choice + 1 < max_choice)
+                                                       choice++;
+                                       }
+                               }
+                       } else
+                               choice = i;
+
+                       print_item(scroll + choice, choice, TRUE);
+
+                       print_arrows(dialog, item_count(), scroll,
+                                    box_y, box_x + item_x + 1, menu_height);
+
+                       wnoutrefresh(dialog);
+                       wrefresh(menu);
+
+                       continue;       /* wait for another key press */
+               }
+
+               switch (key) {
+               case KEY_LEFT:
+               case TAB:
+               case KEY_RIGHT:
+                       button = ((key == KEY_LEFT ? --button : ++button) < 0)
+                           ? 2 : (button > 2 ? 0 : button);
+
+                       print_buttons(dialog, height, width, button);
+                       wrefresh(menu);
+                       break;
+               case ' ':
+               case 's':
+               case 'y':
+               case 'n':
+               case 'm':
+               case '/':
+                       /* save scroll info */
+                       *s_scroll = scroll;
+                       delwin(menu);
+                       delwin(dialog);
+                       item_set(scroll + choice);
+                       item_set_selected(1);
+                       switch (key) {
+                       case 's':
+                               return 3;
+                       case 'y':
+                               return 3;
+                       case 'n':
+                               return 4;
+                       case 'm':
+                               return 5;
+                       case ' ':
+                               return 6;
+                       case '/':
+                               return 7;
+                       }
+                       return 0;
+               case 'h':
+               case '?':
+                       button = 2;
+               case '\n':
+                       *s_scroll = scroll;
+                       delwin(menu);
+                       delwin(dialog);
+                       item_set(scroll + choice);
+                       item_set_selected(1);
+                       return button;
+               case 'e':
+               case 'x':
+                       key = KEY_ESC;
+                       break;
+               case KEY_ESC:
+                       key = on_key_esc(menu);
+                       break;
+               case KEY_RESIZE:
+                       on_key_resize();
+                       delwin(menu);
+                       delwin(dialog);
+                       goto do_resize;
+               }
+       }
+       delwin(menu);
+       delwin(dialog);
+       return key;             /* ESC pressed */
+}
diff --git a/kconfig/lxdialog/textbox.c b/kconfig/lxdialog/textbox.c
new file mode 100644 (file)
index 0000000..fabfc1a
--- /dev/null
@@ -0,0 +1,391 @@
+/*
+ *  textbox.c -- implements the text box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+static void back_lines(int n);
+static void print_page(WINDOW * win, int height, int width);
+static void print_line(WINDOW * win, int row, int width);
+static char *get_line(void);
+static void print_position(WINDOW * win);
+
+static int hscroll;
+static int begin_reached, end_reached, page_length;
+static const char *buf;
+static const char *page;
+
+/*
+ * refresh window content
+ */
+static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
+                                                         int cur_y, int cur_x)
+{
+       print_page(box, boxh, boxw);
+       print_position(dialog);
+       wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+       wrefresh(dialog);
+}
+
+
+/*
+ * Display text from a file in a dialog box.
+ */
+int dialog_textbox(const char *title, const char *tbuf,
+                  int initial_height, int initial_width)
+{
+       int i, x, y, cur_x, cur_y, key = 0;
+       int height, width, boxh, boxw;
+       int passed_end;
+       WINDOW *dialog, *box;
+
+       begin_reached = 1;
+       end_reached = 0;
+       page_length = 0;
+       hscroll = 0;
+       buf = tbuf;
+       page = buf;     /* page is pointer to start of page to be displayed */
+
+do_resize:
+       getmaxyx(stdscr, height, width);
+       if (height < 8 || width < 8)
+               return -ERRDISPLAYTOOSMALL;
+       if (initial_height != 0)
+               height = initial_height;
+       else
+               if (height > 4)
+                       height -= 4;
+               else
+                       height = 0;
+       if (initial_width != 0)
+               width = initial_width;
+       else
+               if (width > 5)
+                       width -= 5;
+               else
+                       width = 0;
+
+       /* center dialog box on screen */
+       x = (COLS - width) / 2;
+       y = (LINES - height) / 2;
+
+       draw_shadow(stdscr, y, x, height, width);
+
+       dialog = newwin(height, width, y, x);
+       keypad(dialog, TRUE);
+
+       /* Create window for box region, used for scrolling text */
+       boxh = height - 4;
+       boxw = width - 2;
+       box = subwin(dialog, boxh, boxw, y + 1, x + 1);
+       wattrset(box, dlg.dialog.atr);
+       wbkgdset(box, dlg.dialog.atr & A_COLOR);
+
+       keypad(box, TRUE);
+
+       /* register the new window, along with its borders */
+       draw_box(dialog, 0, 0, height, width,
+                dlg.dialog.atr, dlg.border.atr);
+
+       wattrset(dialog, dlg.border.atr);
+       mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+       for (i = 0; i < width - 2; i++)
+               waddch(dialog, ACS_HLINE);
+       wattrset(dialog, dlg.dialog.atr);
+       wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
+       waddch(dialog, ACS_RTEE);
+
+       print_title(dialog, title, width);
+
+       print_button(dialog, " Exit ", height - 2, width / 2 - 4, TRUE);
+       wnoutrefresh(dialog);
+       getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+
+       /* Print first page of text */
+       attr_clear(box, boxh, boxw, dlg.dialog.atr);
+       refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x);
+
+       while ((key != KEY_ESC) && (key != '\n')) {
+               key = wgetch(dialog);
+               switch (key) {
+               case 'E':       /* Exit */
+               case 'e':
+               case 'X':
+               case 'x':
+                       delwin(box);
+                       delwin(dialog);
+                       return 0;
+               case 'g':       /* First page */
+               case KEY_HOME:
+                       if (!begin_reached) {
+                               begin_reached = 1;
+                               page = buf;
+                               refresh_text_box(dialog, box, boxh, boxw,
+                                                cur_y, cur_x);
+                       }
+                       break;
+               case 'G':       /* Last page */
+               case KEY_END:
+
+                       end_reached = 1;
+                       /* point to last char in buf */
+                       page = buf + strlen(buf);
+                       back_lines(boxh);
+                       refresh_text_box(dialog, box, boxh, boxw,
+                                        cur_y, cur_x);
+                       break;
+               case 'K':       /* Previous line */
+               case 'k':
+               case KEY_UP:
+                       if (!begin_reached) {
+                               back_lines(page_length + 1);
+
+                               /* We don't call print_page() here but use
+                                * scrolling to ensure faster screen update.
+                                * However, 'end_reached' and 'page_length'
+                                * should still be updated, and 'page' should
+                                * point to start of next page. This is done
+                                * by calling get_line() in the following
+                                * 'for' loop. */
+                               scrollok(box, TRUE);
+                               wscrl(box, -1); /* Scroll box region down one line */
+                               scrollok(box, FALSE);
+                               page_length = 0;
+                               passed_end = 0;
+                               for (i = 0; i < boxh; i++) {
+                                       if (!i) {
+                                               /* print first line of page */
+                                               print_line(box, 0, boxw);
+                                               wnoutrefresh(box);
+                                       } else
+                                               /* Called to update 'end_reached' and 'page' */
+                                               get_line();
+                                       if (!passed_end)
+                                               page_length++;
+                                       if (end_reached && !passed_end)
+                                               passed_end = 1;
+                               }
+
+                               print_position(dialog);
+                               wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+                               wrefresh(dialog);
+                       }
+                       break;
+               case 'B':       /* Previous page */
+               case 'b':
+               case KEY_PPAGE:
+                       if (begin_reached)
+                               break;
+                       back_lines(page_length + boxh);
+                       refresh_text_box(dialog, box, boxh, boxw,
+                                        cur_y, cur_x);
+                       break;
+               case 'J':       /* Next line */
+               case 'j':
+               case KEY_DOWN:
+                       if (!end_reached) {
+                               begin_reached = 0;
+                               scrollok(box, TRUE);
+                               scroll(box);    /* Scroll box region up one line */
+                               scrollok(box, FALSE);
+                               print_line(box, boxh - 1, boxw);
+                               wnoutrefresh(box);
+                               print_position(dialog);
+                               wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+                               wrefresh(dialog);
+                       }
+                       break;
+               case KEY_NPAGE: /* Next page */
+               case ' ':
+                       if (end_reached)
+                               break;
+
+                       begin_reached = 0;
+                       refresh_text_box(dialog, box, boxh, boxw,
+                                        cur_y, cur_x);
+                       break;
+               case '0':       /* Beginning of line */
+               case 'H':       /* Scroll left */
+               case 'h':
+               case KEY_LEFT:
+                       if (hscroll <= 0)
+                               break;
+
+                       if (key == '0')
+                               hscroll = 0;
+                       else
+                               hscroll--;
+                       /* Reprint current page to scroll horizontally */
+                       back_lines(page_length);
+                       refresh_text_box(dialog, box, boxh, boxw,
+                                        cur_y, cur_x);
+                       break;
+               case 'L':       /* Scroll right */
+               case 'l':
+               case KEY_RIGHT:
+                       if (hscroll >= MAX_LEN)
+                               break;
+                       hscroll++;
+                       /* Reprint current page to scroll horizontally */
+                       back_lines(page_length);
+                       refresh_text_box(dialog, box, boxh, boxw,
+                                        cur_y, cur_x);
+                       break;
+               case KEY_ESC:
+                       key = on_key_esc(dialog);
+                       break;
+               case KEY_RESIZE:
+                       back_lines(height);
+                       delwin(box);
+                       delwin(dialog);
+                       on_key_resize();
+                       goto do_resize;
+               }
+       }
+       delwin(box);
+       delwin(dialog);
+       return key;             /* ESC pressed */
+}
+
+/*
+ * Go back 'n' lines in text. Called by dialog_textbox().
+ * 'page' will be updated to point to the desired line in 'buf'.
+ */
+static void back_lines(int n)
+{
+       int i;
+
+       begin_reached = 0;
+       /* Go back 'n' lines */
+       for (i = 0; i < n; i++) {
+               if (*page == '\0') {
+                       if (end_reached) {
+                               end_reached = 0;
+                               continue;
+                       }
+               }
+               if (page == buf) {
+                       begin_reached = 1;
+                       return;
+               }
+               page--;
+               do {
+                       if (page == buf) {
+                               begin_reached = 1;
+                               return;
+                       }
+                       page--;
+               } while (*page != '\n');
+               page++;
+       }
+}
+
+/*
+ * Print a new page of text. Called by dialog_textbox().
+ */
+static void print_page(WINDOW * win, int height, int width)
+{
+       int i, passed_end = 0;
+
+       page_length = 0;
+       for (i = 0; i < height; i++) {
+               print_line(win, i, width);
+               if (!passed_end)
+                       page_length++;
+               if (end_reached && !passed_end)
+                       passed_end = 1;
+       }
+       wnoutrefresh(win);
+}
+
+/*
+ * Print a new line of text. Called by dialog_textbox() and print_page().
+ */
+static void print_line(WINDOW * win, int row, int width)
+{
+       int y, x;
+       char *line;
+
+       line = get_line();
+       line += MIN(strlen(line), hscroll);     /* Scroll horizontally */
+       wmove(win, row, 0);     /* move cursor to correct line */
+       waddch(win, ' ');
+       waddnstr(win, line, MIN(strlen(line), width - 2));
+
+       getyx(win, y, x);
+       /* Clear 'residue' of previous line */
+#if OLD_NCURSES
+       {
+               int i;
+               for (i = 0; i < width - x; i++)
+                       waddch(win, ' ');
+       }
+#else
+       wclrtoeol(win);
+#endif
+}
+
+/*
+ * Return current line of text. Called by dialog_textbox() and print_line().
+ * 'page' should point to start of current line before calling, and will be
+ * updated to point to start of next line.
+ */
+static char *get_line(void)
+{
+       int i = 0;
+       static char line[MAX_LEN + 1];
+
+       end_reached = 0;
+       while (*page != '\n') {
+               if (*page == '\0') {
+                       if (!end_reached) {
+                               end_reached = 1;
+                               break;
+                       }
+               } else if (i < MAX_LEN)
+                       line[i++] = *(page++);
+               else {
+                       /* Truncate lines longer than MAX_LEN characters */
+                       if (i == MAX_LEN)
+                               line[i++] = '\0';
+                       page++;
+               }
+       }
+       if (i <= MAX_LEN)
+               line[i] = '\0';
+       if (!end_reached)
+               page++;         /* move pass '\n' */
+
+       return line;
+}
+
+/*
+ * Print current position
+ */
+static void print_position(WINDOW * win)
+{
+       int percent;
+
+       wattrset(win, dlg.position_indicator.atr);
+       wbkgdset(win, dlg.position_indicator.atr & A_COLOR);
+       percent = (page - buf) * 100 / strlen(buf);
+       wmove(win, getmaxy(win) - 3, getmaxx(win) - 9);
+       wprintw(win, "(%3d%%)", percent);
+}
diff --git a/kconfig/lxdialog/util.c b/kconfig/lxdialog/util.c
new file mode 100644 (file)
index 0000000..ebc781b
--- /dev/null
@@ -0,0 +1,642 @@
+/*
+ *  util.c
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+struct dialog_info dlg;
+
+static void set_mono_theme(void)
+{
+       dlg.screen.atr = A_NORMAL;
+       dlg.shadow.atr = A_NORMAL;
+       dlg.dialog.atr = A_NORMAL;
+       dlg.title.atr = A_BOLD;
+       dlg.border.atr = A_NORMAL;
+       dlg.button_active.atr = A_REVERSE;
+       dlg.button_inactive.atr = A_DIM;
+       dlg.button_key_active.atr = A_REVERSE;
+       dlg.button_key_inactive.atr = A_BOLD;
+       dlg.button_label_active.atr = A_REVERSE;
+       dlg.button_label_inactive.atr = A_NORMAL;
+       dlg.inputbox.atr = A_NORMAL;
+       dlg.inputbox_border.atr = A_NORMAL;
+       dlg.searchbox.atr = A_NORMAL;
+       dlg.searchbox_title.atr = A_BOLD;
+       dlg.searchbox_border.atr = A_NORMAL;
+       dlg.position_indicator.atr = A_BOLD;
+       dlg.menubox.atr = A_NORMAL;
+       dlg.menubox_border.atr = A_NORMAL;
+       dlg.item.atr = A_NORMAL;
+       dlg.item_selected.atr = A_REVERSE;
+       dlg.tag.atr = A_BOLD;
+       dlg.tag_selected.atr = A_REVERSE;
+       dlg.tag_key.atr = A_BOLD;
+       dlg.tag_key_selected.atr = A_REVERSE;
+       dlg.check.atr = A_BOLD;
+       dlg.check_selected.atr = A_REVERSE;
+       dlg.uarrow.atr = A_BOLD;
+       dlg.darrow.atr = A_BOLD;
+}
+
+#define DLG_COLOR(dialog, f, b, h) \
+do {                               \
+       dlg.dialog.fg = (f);       \
+       dlg.dialog.bg = (b);       \
+       dlg.dialog.hl = (h);       \
+} while (0)
+
+static void set_classic_theme(void)
+{
+       DLG_COLOR(screen,                COLOR_CYAN,   COLOR_BLUE,   true);
+       DLG_COLOR(shadow,                COLOR_BLACK,  COLOR_BLACK,  true);
+       DLG_COLOR(dialog,                COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(title,                 COLOR_YELLOW, COLOR_WHITE,  true);
+       DLG_COLOR(border,                COLOR_WHITE,  COLOR_WHITE,  true);
+       DLG_COLOR(button_active,         COLOR_WHITE,  COLOR_BLUE,   true);
+       DLG_COLOR(button_inactive,       COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(button_key_active,     COLOR_WHITE,  COLOR_BLUE,   true);
+       DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_WHITE,  false);
+       DLG_COLOR(button_label_active,   COLOR_YELLOW, COLOR_BLUE,   true);
+       DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_WHITE,  true);
+       DLG_COLOR(inputbox,              COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(inputbox_border,       COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(searchbox,             COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(searchbox_title,       COLOR_YELLOW, COLOR_WHITE,  true);
+       DLG_COLOR(searchbox_border,      COLOR_WHITE,  COLOR_WHITE,  true);
+       DLG_COLOR(position_indicator,    COLOR_YELLOW, COLOR_WHITE,  true);
+       DLG_COLOR(menubox,               COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(menubox_border,        COLOR_WHITE,  COLOR_WHITE,  true);
+       DLG_COLOR(item,                  COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(item_selected,         COLOR_WHITE,  COLOR_BLUE,   true);
+       DLG_COLOR(tag,                   COLOR_YELLOW, COLOR_WHITE,  true);
+       DLG_COLOR(tag_selected,          COLOR_YELLOW, COLOR_BLUE,   true);
+       DLG_COLOR(tag_key,               COLOR_YELLOW, COLOR_WHITE,  true);
+       DLG_COLOR(tag_key_selected,      COLOR_YELLOW, COLOR_BLUE,   true);
+       DLG_COLOR(check,                 COLOR_BLACK,  COLOR_WHITE,  false);
+       DLG_COLOR(check_selected,        COLOR_WHITE,  COLOR_BLUE,   true);
+       DLG_COLOR(uarrow,                COLOR_GREEN,  COLOR_WHITE,  true);
+       DLG_COLOR(darrow,                COLOR_GREEN,  COLOR_WHITE,  true);
+}
+
+static void set_blackbg_theme(void)
+{
+       DLG_COLOR(screen, COLOR_RED,   COLOR_BLACK, true);
+       DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
+       DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
+       DLG_COLOR(title,  COLOR_RED,   COLOR_BLACK, false);
+       DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
+
+       DLG_COLOR(button_active,         COLOR_YELLOW, COLOR_RED,   false);
+       DLG_COLOR(button_inactive,       COLOR_YELLOW, COLOR_BLACK, false);
+       DLG_COLOR(button_key_active,     COLOR_YELLOW, COLOR_RED,   true);
+       DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_BLACK, false);
+       DLG_COLOR(button_label_active,   COLOR_WHITE,  COLOR_RED,   false);
+       DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_BLACK, true);
+
+       DLG_COLOR(inputbox,         COLOR_YELLOW, COLOR_BLACK, false);
+       DLG_COLOR(inputbox_border,  COLOR_YELLOW, COLOR_BLACK, false);
+
+       DLG_COLOR(searchbox,        COLOR_YELLOW, COLOR_BLACK, false);
+       DLG_COLOR(searchbox_title,  COLOR_YELLOW, COLOR_BLACK, true);
+       DLG_COLOR(searchbox_border, COLOR_BLACK,  COLOR_BLACK, true);
+
+       DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK,  false);
+
+       DLG_COLOR(menubox,          COLOR_YELLOW, COLOR_BLACK, false);
+       DLG_COLOR(menubox_border,   COLOR_BLACK,  COLOR_BLACK, true);
+
+       DLG_COLOR(item,             COLOR_WHITE, COLOR_BLACK, false);
+       DLG_COLOR(item_selected,    COLOR_WHITE, COLOR_RED,   false);
+
+       DLG_COLOR(tag,              COLOR_RED,    COLOR_BLACK, false);
+       DLG_COLOR(tag_selected,     COLOR_YELLOW, COLOR_RED,   true);
+       DLG_COLOR(tag_key,          COLOR_RED,    COLOR_BLACK, false);
+       DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED,   true);
+
+       DLG_COLOR(check,            COLOR_YELLOW, COLOR_BLACK, false);
+       DLG_COLOR(check_selected,   COLOR_YELLOW, COLOR_RED,   true);
+
+       DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
+       DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
+}
+
+static void set_bluetitle_theme(void)
+{
+       set_classic_theme();
+       DLG_COLOR(title,               COLOR_BLUE,   COLOR_WHITE, true);
+       DLG_COLOR(button_key_active,   COLOR_YELLOW, COLOR_BLUE,  true);
+       DLG_COLOR(button_label_active, COLOR_WHITE,  COLOR_BLUE,  true);
+       DLG_COLOR(searchbox_title,     COLOR_BLUE,   COLOR_WHITE, true);
+       DLG_COLOR(position_indicator,  COLOR_BLUE,   COLOR_WHITE, true);
+       DLG_COLOR(tag,                 COLOR_BLUE,   COLOR_WHITE, true);
+       DLG_COLOR(tag_key,             COLOR_BLUE,   COLOR_WHITE, true);
+
+}
+
+/*
+ * Select color theme
+ */
+static int set_theme(const char *theme)
+{
+       int use_color = 1;
+       if (!theme)
+               set_bluetitle_theme();
+       else if (strcmp(theme, "classic") == 0)
+               set_classic_theme();
+       else if (strcmp(theme, "bluetitle") == 0)
+               set_bluetitle_theme();
+       else if (strcmp(theme, "blackbg") == 0)
+               set_blackbg_theme();
+       else if (strcmp(theme, "mono") == 0)
+               use_color = 0;
+
+       return use_color;
+}
+
+static void init_one_color(struct dialog_color *color)
+{
+       static int pair = 0;
+
+       pair++;
+       init_pair(pair, color->fg, color->bg);
+       if (color->hl)
+               color->atr = A_BOLD | COLOR_PAIR(pair);
+       else
+               color->atr = COLOR_PAIR(pair);
+}
+
+static void init_dialog_colors(void)
+{
+       init_one_color(&dlg.screen);
+       init_one_color(&dlg.shadow);
+       init_one_color(&dlg.dialog);
+       init_one_color(&dlg.title);
+       init_one_color(&dlg.border);
+       init_one_color(&dlg.button_active);
+       init_one_color(&dlg.button_inactive);
+       init_one_color(&dlg.button_key_active);
+       init_one_color(&dlg.button_key_inactive);
+       init_one_color(&dlg.button_label_active);
+       init_one_color(&dlg.button_label_inactive);
+       init_one_color(&dlg.inputbox);
+       init_one_color(&dlg.inputbox_border);
+       init_one_color(&dlg.searchbox);
+       init_one_color(&dlg.searchbox_title);
+       init_one_color(&dlg.searchbox_border);
+       init_one_color(&dlg.position_indicator);
+       init_one_color(&dlg.menubox);
+       init_one_color(&dlg.menubox_border);
+       init_one_color(&dlg.item);
+       init_one_color(&dlg.item_selected);
+       init_one_color(&dlg.tag);
+       init_one_color(&dlg.tag_selected);
+       init_one_color(&dlg.tag_key);
+       init_one_color(&dlg.tag_key_selected);
+       init_one_color(&dlg.check);
+       init_one_color(&dlg.check_selected);
+       init_one_color(&dlg.uarrow);
+       init_one_color(&dlg.darrow);
+}
+
+/*
+ * Setup for color display
+ */
+static void color_setup(const char *theme)
+{
+       if (set_theme(theme)) {
+               if (has_colors()) {     /* Terminal supports color? */
+                       start_color();
+                       init_dialog_colors();
+               }
+       }
+       else
+       {
+               set_mono_theme();
+       }
+}
+
+/*
+ * Set window to attribute 'attr'
+ */
+void attr_clear(WINDOW * win, int height, int width, chtype attr)
+{
+       int i, j;
+
+       wattrset(win, attr);
+       for (i = 0; i < height; i++) {
+               wmove(win, i, 0);
+               for (j = 0; j < width; j++)
+                       waddch(win, ' ');
+       }
+       touchwin(win);
+}
+
+void dialog_clear(void)
+{
+       attr_clear(stdscr, LINES, COLS, dlg.screen.atr);
+       /* Display background title if it exists ... - SLH */
+       if (dlg.backtitle != NULL) {
+               int i;
+
+               wattrset(stdscr, dlg.screen.atr);
+               mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
+               wmove(stdscr, 1, 1);
+               for (i = 1; i < COLS - 1; i++)
+                       waddch(stdscr, ACS_HLINE);
+       }
+       wnoutrefresh(stdscr);
+}
+
+/*
+ * Do some initialization for dialog
+ */
+void init_dialog(const char *backtitle)
+{
+       dlg.backtitle = backtitle;
+       color_setup(getenv("MENUCONFIG_COLOR"));
+}
+
+void reset_dialog(void)
+{
+       initscr();              /* Init curses */
+       keypad(stdscr, TRUE);
+       cbreak();
+       noecho();
+       dialog_clear();
+}
+
+/*
+ * End using dialog functions.
+ */
+void end_dialog(void)
+{
+       endwin();
+}
+
+/* Print the title of the dialog. Center the title and truncate
+ * tile if wider than dialog (- 2 chars).
+ **/
+void print_title(WINDOW *dialog, const char *title, int width)
+{
+       if (title) {
+               int tlen = MIN(width - 2, strlen(title));
+               wattrset(dialog, dlg.title.atr);
+               mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
+               mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
+               waddch(dialog, ' ');
+       }
+}
+
+/*
+ * Print a string of text in a window, automatically wrap around to the
+ * next line if the string is too long to fit on one line. Newline
+ * characters '\n' are replaced by spaces.  We start on a new line
+ * if there is no room for at least 4 nonblanks following a double-space.
+ */
+void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
+{
+       int newl, cur_x, cur_y;
+       int i, prompt_len, room, wlen;
+       char tempstr[MAX_LEN + 1], *word, *sp, *sp2;
+
+       strcpy(tempstr, prompt);
+
+       prompt_len = strlen(tempstr);
+
+       /*
+        * Remove newlines
+        */
+       for (i = 0; i < prompt_len; i++) {
+               if (tempstr[i] == '\n')
+                       tempstr[i] = ' ';
+       }
+
+       if (prompt_len <= width - x * 2) {      /* If prompt is short */
+               wmove(win, y, (width - prompt_len) / 2);
+               waddstr(win, tempstr);
+       } else {
+               cur_x = x;
+               cur_y = y;
+               newl = 1;
+               word = tempstr;
+               while (word && *word) {
+                       sp = index(word, ' ');
+                       if (sp)
+                               *sp++ = 0;
+
+                       /* Wrap to next line if either the word does not fit,
+                          or it is the first word of a new sentence, and it is
+                          short, and the next word does not fit. */
+                       room = width - cur_x;
+                       wlen = strlen(word);
+                       if (wlen > room ||
+                           (newl && wlen < 4 && sp
+                            && wlen + 1 + strlen(sp) > room
+                            && (!(sp2 = index(sp, ' '))
+                                || wlen + 1 + (sp2 - sp) > room))) {
+                               cur_y++;
+                               cur_x = x;
+                       }
+                       wmove(win, cur_y, cur_x);
+                       waddstr(win, word);
+                       getyx(win, cur_y, cur_x);
+                       cur_x++;
+                       if (sp && *sp == ' ') {
+                               cur_x++;        /* double space */
+                               while (*++sp == ' ') ;
+                               newl = 1;
+                       } else
+                               newl = 0;
+                       word = sp;
+               }
+       }
+}
+
+/*
+ * Print a button
+ */
+void print_button(WINDOW * win, const char *label, int y, int x, int selected)
+{
+       int i, temp;
+
+       wmove(win, y, x);
+       wattrset(win, selected ? dlg.button_active.atr
+                : dlg.button_inactive.atr);
+       waddstr(win, "<");
+       temp = strspn(label, " ");
+       label += temp;
+       wattrset(win, selected ? dlg.button_label_active.atr
+                : dlg.button_label_inactive.atr);
+       for (i = 0; i < temp; i++)
+               waddch(win, ' ');
+       wattrset(win, selected ? dlg.button_key_active.atr
+                : dlg.button_key_inactive.atr);
+       waddch(win, label[0]);
+       wattrset(win, selected ? dlg.button_label_active.atr
+                : dlg.button_label_inactive.atr);
+       waddstr(win, (char *)label + 1);
+       wattrset(win, selected ? dlg.button_active.atr
+                : dlg.button_inactive.atr);
+       waddstr(win, ">");
+       wmove(win, y, x + temp + 1);
+}
+
+/*
+ * Draw a rectangular box with line drawing characters
+ */
+void
+draw_box(WINDOW * win, int y, int x, int height, int width,
+        chtype box, chtype border)
+{
+       int i, j;
+
+       wattrset(win, 0);
+       for (i = 0; i < height; i++) {
+               wmove(win, y + i, x);
+               for (j = 0; j < width; j++)
+                       if (!i && !j)
+                               waddch(win, border | ACS_ULCORNER);
+                       else if (i == height - 1 && !j)
+                               waddch(win, border | ACS_LLCORNER);
+                       else if (!i && j == width - 1)
+                               waddch(win, box | ACS_URCORNER);
+                       else if (i == height - 1 && j == width - 1)
+                               waddch(win, box | ACS_LRCORNER);
+                       else if (!i)
+                               waddch(win, border | ACS_HLINE);
+                       else if (i == height - 1)
+                               waddch(win, box | ACS_HLINE);
+                       else if (!j)
+                               waddch(win, border | ACS_VLINE);
+                       else if (j == width - 1)
+                               waddch(win, box | ACS_VLINE);
+                       else
+                               waddch(win, box | ' ');
+       }
+}
+
+/*
+ * Draw shadows along the right and bottom edge to give a more 3D look
+ * to the boxes
+ */
+void draw_shadow(WINDOW * win, int y, int x, int height, int width)
+{
+       int i;
+
+       if (has_colors()) {     /* Whether terminal supports color? */
+               wattrset(win, dlg.shadow.atr);
+               wmove(win, y + height, x + 2);
+               for (i = 0; i < width; i++)
+                       waddch(win, winch(win) & A_CHARTEXT);
+               for (i = y + 1; i < y + height + 1; i++) {
+                       wmove(win, i, x + width);
+                       waddch(win, winch(win) & A_CHARTEXT);
+                       waddch(win, winch(win) & A_CHARTEXT);
+               }
+               wnoutrefresh(win);
+       }
+}
+
+/*
+ *  Return the position of the first alphabetic character in a string.
+ */
+int first_alpha(const char *string, const char *exempt)
+{
+       int i, in_paren = 0, c;
+
+       for (i = 0; i < strlen(string); i++) {
+               c = tolower(string[i]);
+
+               if (strchr("<[(", c))
+                       ++in_paren;
+               if (strchr(">])", c) && in_paren > 0)
+                       --in_paren;
+
+               if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
+                       return i;
+       }
+
+       return 0;
+}
+
+/*
+ * ncurses uses ESC to detect escaped char sequences. This resutl in
+ * a small timeout before ESC is actually delivered to the application.
+ * lxdialog suggest <ESC> <ESC> which is correctly translated to two
+ * times esc. But then we need to ignore the second esc to avoid stepping
+ * out one menu too much. Filter away all escaped key sequences since
+ * keypad(FALSE) turn off ncurses support for escape sequences - and thats
+ * needed to make notimeout() do as expected.
+ */
+int on_key_esc(WINDOW *win)
+{
+       int key;
+       int key2;
+       int key3;
+
+       nodelay(win, TRUE);
+       keypad(win, FALSE);
+       key = wgetch(win);
+       key2 = wgetch(win);
+       do {
+               key3 = wgetch(win);
+       } while (key3 != ERR);
+       nodelay(win, FALSE);
+       keypad(win, TRUE);
+       if (key == KEY_ESC && key2 == ERR)
+               return KEY_ESC;
+       else if (key != ERR && key != KEY_ESC && key2 == ERR)
+               ungetch(key);
+
+       return -1;
+}
+
+/* redraw screen in new size */
+int on_key_resize(void)
+{
+       dialog_clear();
+       return KEY_RESIZE;
+}
+
+struct dialog_list *item_cur;
+struct dialog_list item_nil;
+struct dialog_list *item_head;
+
+void item_reset(void)
+{
+       struct dialog_list *p, *next;
+
+       for (p = item_head; p; p = next) {
+               next = p->next;
+               free(p);
+       }
+       item_head = NULL;
+       item_cur = &item_nil;
+}
+
+void item_make(const char *fmt, ...)
+{
+       va_list ap;
+       struct dialog_list *p = malloc(sizeof(*p));
+
+       if (item_head)
+               item_cur->next = p;
+       else
+               item_head = p;
+       item_cur = p;
+       memset(p, 0, sizeof(*p));
+
+       va_start(ap, fmt);
+       vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
+       va_end(ap);
+}
+
+void item_add_str(const char *fmt, ...)
+{
+       va_list ap;
+        size_t avail;
+
+       avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
+
+       va_start(ap, fmt);
+       vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
+                 avail, fmt, ap);
+       item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
+       va_end(ap);
+}
+
+void item_set_tag(char tag)
+{
+       item_cur->node.tag = tag;
+}
+void item_set_data(void *ptr)
+{
+       item_cur->node.data = ptr;
+}
+
+void item_set_selected(int val)
+{
+       item_cur->node.selected = val;
+}
+
+int item_activate_selected(void)
+{
+       item_foreach()
+               if (item_is_selected())
+                       return 1;
+       return 0;
+}
+
+void *item_data(void)
+{
+       return item_cur->node.data;
+}
+
+char item_tag(void)
+{
+       return item_cur->node.tag;
+}
+
+int item_count(void)
+{
+       int n = 0;
+       struct dialog_list *p;
+
+       for (p = item_head; p; p = p->next)
+               n++;
+       return n;
+}
+
+void item_set(int n)
+{
+       int i = 0;
+       item_foreach()
+               if (i++ == n)
+                       return;
+}
+
+int item_n(void)
+{
+       int n = 0;
+       struct dialog_list *p;
+
+       for (p = item_head; p; p = p->next) {
+               if (p == item_cur)
+                       return n;
+               n++;
+       }
+       return 0;
+}
+
+const char *item_str(void)
+{
+       return item_cur->node.str;
+}
+
+int item_is_selected(void)
+{
+       return (item_cur->node.selected != 0);
+}
+
+int item_is_tag(char tag)
+{
+       return (item_cur->node.tag == tag);
+}
diff --git a/kconfig/lxdialog/yesno.c b/kconfig/lxdialog/yesno.c
new file mode 100644 (file)
index 0000000..ee0a04e
--- /dev/null
@@ -0,0 +1,114 @@
+/*
+ *  yesno.c -- implements the yes/no box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+/*
+ * Display termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+       int x = width / 2 - 10;
+       int y = height - 2;
+
+       print_button(dialog, " Yes ", y, x, selected == 0);
+       print_button(dialog, "  No  ", y, x + 13, selected == 1);
+
+       wmove(dialog, y, x + 1 + 13 * selected);
+       wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box with two buttons - Yes and No
+ */
+int dialog_yesno(const char *title, const char *prompt, int height, int width)
+{
+       int i, x, y, key = 0, button = 0;
+       WINDOW *dialog;
+
+do_resize:
+       if (getmaxy(stdscr) < (height + 4))
+               return -ERRDISPLAYTOOSMALL;
+       if (getmaxx(stdscr) < (width + 4))
+               return -ERRDISPLAYTOOSMALL;
+
+       /* center dialog box on screen */
+       x = (COLS - width) / 2;
+       y = (LINES - height) / 2;
+
+       draw_shadow(stdscr, y, x, height, width);
+
+       dialog = newwin(height, width, y, x);
+       keypad(dialog, TRUE);
+
+       draw_box(dialog, 0, 0, height, width,
+                dlg.dialog.atr, dlg.border.atr);
+       wattrset(dialog, dlg.border.atr);
+       mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+       for (i = 0; i < width - 2; i++)
+               waddch(dialog, ACS_HLINE);
+       wattrset(dialog, dlg.dialog.atr);
+       waddch(dialog, ACS_RTEE);
+
+       print_title(dialog, title, width);
+
+       wattrset(dialog, dlg.dialog.atr);
+       print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+       print_buttons(dialog, height, width, 0);
+
+       while (key != KEY_ESC) {
+               key = wgetch(dialog);
+               switch (key) {
+               case 'Y':
+               case 'y':
+                       delwin(dialog);
+                       return 0;
+               case 'N':
+               case 'n':
+                       delwin(dialog);
+                       return 1;
+
+               case TAB:
+               case KEY_LEFT:
+               case KEY_RIGHT:
+                       button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
+
+                       print_buttons(dialog, height, width, button);
+                       wrefresh(dialog);
+                       break;
+               case ' ':
+               case '\n':
+                       delwin(dialog);
+                       return button;
+               case KEY_ESC:
+                       key = on_key_esc(dialog);
+                       break;
+               case KEY_RESIZE:
+                       delwin(dialog);
+                       on_key_resize();
+                       goto do_resize;
+               }
+       }
+
+       delwin(dialog);
+       return key;             /* ESC pressed */
+}
diff --git a/kconfig/mconf.c b/kconfig/mconf.c
new file mode 100644 (file)
index 0000000..168c596
--- /dev/null
@@ -0,0 +1,919 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Introduced single menu mode (show all sub-menus in one large tree).
+ * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ */
+
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <locale.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+#include "lxdialog/dialog.h"
+
+static char menu_backtitle[128];
+static const char mconf_readme[] = N_(
+"Overview\n"
+"--------\n"
+"Some kernel features may be built directly into the kernel.\n"
+"Some may be made into loadable runtime modules.  Some features\n"
+"may be completely removed altogether.  There are also certain\n"
+"kernel parameters which are not really features, but must be\n"
+"entered in as decimal or hexadecimal numbers or possibly text.\n"
+"\n"
+"Menu items beginning with [*], <M> or [ ] represent features\n"
+"configured to be built in, modularized or removed respectively.\n"
+"Pointed brackets <> represent module capable features.\n"
+"\n"
+"To change any of these features, highlight it with the cursor\n"
+"keys and press <Y> to build it in, <M> to make it a module or\n"
+"<N> to removed it.  You may also press the <Space Bar> to cycle\n"
+"through the available options (ie. Y->N->M->Y).\n"
+"\n"
+"Some additional keyboard hints:\n"
+"\n"
+"Menus\n"
+"----------\n"
+"o  Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
+"   you wish to change or submenu wish to select and press <Enter>.\n"
+"   Submenus are designated by \"--->\".\n"
+"\n"
+"   Shortcut: Press the option's highlighted letter (hotkey).\n"
+"             Pressing a hotkey more than once will sequence\n"
+"             through all visible items which use that hotkey.\n"
+"\n"
+"   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+"   unseen options into view.\n"
+"\n"
+"o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
+"   and press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
+"             using those letters.  You may press a single <ESC>, but\n"
+"             there is a delayed response which you may find annoying.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
+"   <Exit> and <Help>\n"
+"\n"
+"o  To get help with an item, use the cursor keys to highlight <Help>\n"
+"   and Press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"\n"
+"Radiolists  (Choice lists)\n"
+"-----------\n"
+"o  Use the cursor keys to select the option you wish to set and press\n"
+"   <S> or the <SPACE BAR>.\n"
+"\n"
+"   Shortcut: Press the first letter of the option you wish to set then\n"
+"             press <S> or <SPACE BAR>.\n"
+"\n"
+"o  To see available help for the item, use the cursor keys to highlight\n"
+"   <Help> and Press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
+"   <Help>\n"
+"\n"
+"\n"
+"Data Entry\n"
+"-----------\n"
+"o  Enter the requested information and press <ENTER>\n"
+"   If you are entering hexadecimal values, it is not necessary to\n"
+"   add the '0x' prefix to the entry.\n"
+"\n"
+"o  For help, use the <TAB> or cursor keys to highlight the help option\n"
+"   and press <ENTER>.  You can try <TAB><H> as well.\n"
+"\n"
+"\n"
+"Text Box    (Help Window)\n"
+"--------\n"
+"o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
+"   keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
+"   who are familiar with less and lynx.\n"
+"\n"
+"o  Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"Menuconfig supports the use of alternate configuration files for\n"
+"those who, for various reasons, find it necessary to switch\n"
+"between different kernel configurations.\n"
+"\n"
+"At the end of the main menu you will find two options.  One is\n"
+"for saving the current configuration to a file of your choosing.\n"
+"The other option is for loading a previously saved alternate\n"
+"configuration.\n"
+"\n"
+"Even if you don't use alternate configuration files, but you\n"
+"find during a Menuconfig session that you have completely messed\n"
+"up your settings, you may use the \"Load Alternate...\" option to\n"
+"restore your previously saved settings from \".config\" without\n"
+"restarting Menuconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use Menuconfig in an XTERM window make sure you have your\n"
+"$TERM variable set to point to a xterm definition which supports color.\n"
+"Otherwise, Menuconfig will look rather bad.  Menuconfig will not\n"
+"display correctly in a RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"Menuconfig will display larger menus on screens or xterms which are\n"
+"set to display more than the standard 25 row by 80 column geometry.\n"
+"In order for this to work, the \"stty size\" command must be able to\n"
+"display the screen's current row and column geometry.  I STRONGLY\n"
+"RECOMMEND that you make sure you do NOT have the shell variables\n"
+"LINES and COLUMNS exported into your environment.  Some distributions\n"
+"export those variables via /etc/profile.  Some ncurses programs can\n"
+"become confused when those variables (LINES & COLUMNS) don't reflect\n"
+"the true screen size.\n"
+"\n"
+"Optional personality available\n"
+"------------------------------\n"
+"If you prefer to have all of the kernel options listed in a single\n"
+"menu, rather than the default multimenu hierarchy, run the menuconfig\n"
+"with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
+"\n"
+"make MENUCONFIG_MODE=single_menu menuconfig\n"
+"\n"
+"<Enter> will then unroll the appropriate category, or enfold it if it\n"
+"is already unrolled.\n"
+"\n"
+"Note that this mode can eventually be a little more CPU expensive\n"
+"(especially with a larger number of unrolled categories) than the\n"
+"default mode.\n"
+"\n"
+"Different color themes available\n"
+"--------------------------------\n"
+"It is possible to select different color themes using the variable\n"
+"MENUCONFIG_COLOR. To select a theme use:\n"
+"\n"
+"make MENUCONFIG_COLOR=<theme> menuconfig\n"
+"\n"
+"Available themes are\n"
+" mono       => selects colors suitable for monochrome displays\n"
+" blackbg    => selects a color scheme with black background\n"
+" classic    => theme with blue background. The classic look\n"
+" bluetitle  => a LCD friendly version of classic. (default)\n"
+"\n"),
+menu_instructions[] = N_(
+       "Arrow keys navigate the menu.  "
+       "<Enter> selects submenus --->.  "
+       "Highlighted letters are hotkeys.  "
+       "Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
+       "Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
+       "Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
+radiolist_instructions[] = N_(
+       "Use the arrow keys to navigate this window or "
+       "press the hotkey of the item you wish to select "
+       "followed by the <SPACE BAR>. "
+       "Press <?> for additional information about this option."),
+inputbox_instructions_int[] = N_(
+       "Please enter a decimal value. "
+       "Fractions will not be accepted.  "
+       "Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_hex[] = N_(
+       "Please enter a hexadecimal value. "
+       "Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_string[] = N_(
+       "Please enter a string value. "
+       "Use the <TAB> key to move from the input field to the buttons below it."),
+setmod_text[] = N_(
+       "This feature depends on another which has been configured as a module.\n"
+       "As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+       "There is no help available for this kernel option.\n"),
+load_config_text[] = N_(
+       "Enter the name of the configuration file you wish to load.  "
+       "Accept the name shown to restore the configuration you "
+       "last retrieved.  Leave blank to abort."),
+load_config_help[] = N_(
+       "\n"
+       "For various reasons, one may wish to keep several different kernel\n"
+       "configurations available on a single machine.\n"
+       "\n"
+       "If you have saved a previous configuration in a file other than the\n"
+       "kernel's default, entering the name of the file here will allow you\n"
+       "to modify that configuration.\n"
+       "\n"
+       "If you are uncertain, then you have probably never used alternate\n"
+       "configuration files.  You should therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
+       "Enter a filename to which this configuration should be saved "
+       "as an alternate.  Leave blank to abort."),
+save_config_help[] = N_(
+       "\n"
+       "For various reasons, one may wish to keep different kernel\n"
+       "configurations available on a single machine.\n"
+       "\n"
+       "Entering a file name here will allow you to later retrieve, modify\n"
+       "and use the current configuration as an alternate to whatever\n"
+       "configuration options you have selected at that time.\n"
+       "\n"
+       "If you are uncertain what all this means then you should probably\n"
+       "leave this blank.\n"),
+search_help[] = N_(
+       "\n"
+       "Search for CONFIG_ symbols and display their relations.\n"
+       "Regular expressions are allowed.\n"
+       "Example: search for \"^FOO\"\n"
+       "Result:\n"
+       "-----------------------------------------------------------------\n"
+       "Symbol: FOO [=m]\n"
+       "Prompt: Foo bus is used to drive the bar HW\n"
+       "Defined at drivers/pci/Kconfig:47\n"
+       "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+       "Location:\n"
+       "  -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
+       "    -> PCI support (PCI [=y])\n"
+       "      -> PCI access mode (<choice> [=y])\n"
+       "Selects: LIBCRC32\n"
+       "Selected by: BAR\n"
+       "-----------------------------------------------------------------\n"
+       "o The line 'Prompt:' shows the text used in the menu structure for\n"
+       "  this CONFIG_ symbol\n"
+       "o The 'Defined at' line tell at what file / line number the symbol\n"
+       "  is defined\n"
+       "o The 'Depends on:' line tell what symbols needs to be defined for\n"
+       "  this symbol to be visible in the menu (selectable)\n"
+       "o The 'Location:' lines tell where in the menu structure this symbol\n"
+       "  is located\n"
+       "    A location followed by a [=y] indicate that this is a selectable\n"
+       "    menu item - and current value is displayed inside brackets.\n"
+       "o The 'Selects:' line tell what symbol will be automatically\n"
+       "  selected if this symbol is selected (y or m)\n"
+       "o The 'Selected by' line tell what symbol has selected this symbol\n"
+       "\n"
+       "Only relevant lines are shown.\n"
+       "\n\n"
+       "Search examples:\n"
+       "Examples: USB  => find all CONFIG_ symbols containing USB\n"
+       "          ^USB => find all CONFIG_ symbols starting with USB\n"
+       "          USB$ => find all CONFIG_ symbols ending with USB\n"
+       "\n");
+
+static char filename[PATH_MAX+1] = ".config";
+static int indent;
+static struct termios ios_org;
+static int rows = 0, cols = 0;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+
+static void conf(struct menu *menu);
+static void conf_choice(struct menu *menu);
+static void conf_string(struct menu *menu);
+static void conf_load(void);
+static void conf_save(void);
+static void show_textbox(const char *title, const char *text, int r, int c);
+static void show_helptext(const char *title, const char *text);
+static void show_help(struct menu *menu);
+
+static void init_wsize(void)
+{
+       struct winsize ws;
+       char *env;
+
+       if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
+               rows = ws.ws_row;
+               cols = ws.ws_col;
+       }
+
+       if (!rows) {
+               env = getenv("LINES");
+               if (env)
+                       rows = atoi(env);
+               if (!rows)
+                       rows = 24;
+       }
+       if (!cols) {
+               env = getenv("COLUMNS");
+               if (env)
+                       cols = atoi(env);
+               if (!cols)
+                       cols = 80;
+       }
+
+       if (rows < 19 || cols < 80) {
+               fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
+               fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
+               exit(1);
+       }
+
+       rows -= 4;
+       cols -= 5;
+}
+
+static void get_prompt_str(struct gstr *r, struct property *prop)
+{
+       int i, j;
+       struct menu *submenu[8], *menu;
+
+       str_printf(r, "Prompt: %s\n", prop->text);
+       str_printf(r, "  Defined at %s:%d\n", prop->menu->file->name,
+               prop->menu->lineno);
+       if (!expr_is_yes(prop->visible.expr)) {
+               str_append(r, "  Depends on: ");
+               expr_gstr_print(prop->visible.expr, r);
+               str_append(r, "\n");
+       }
+       menu = prop->menu->parent;
+       for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
+               submenu[i++] = menu;
+       if (i > 0) {
+               str_printf(r, "  Location:\n");
+               for (j = 4; --i >= 0; j += 2) {
+                       menu = submenu[i];
+                       str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
+                       if (menu->sym) {
+                               str_printf(r, " (%s [=%s])", menu->sym->name ?
+                                       menu->sym->name : "<choice>",
+                                       sym_get_string_value(menu->sym));
+                       }
+                       str_append(r, "\n");
+               }
+       }
+}
+
+static void get_symbol_str(struct gstr *r, struct symbol *sym)
+{
+       bool hit;
+       struct property *prop;
+
+       str_printf(r, "Symbol: %s [=%s]\n", sym->name,
+                                      sym_get_string_value(sym));
+       for_all_prompts(sym, prop)
+               get_prompt_str(r, prop);
+       hit = false;
+       for_all_properties(sym, prop, P_SELECT) {
+               if (!hit) {
+                       str_append(r, "  Selects: ");
+                       hit = true;
+               } else
+                       str_printf(r, " && ");
+               expr_gstr_print(prop->expr, r);
+       }
+       if (hit)
+               str_append(r, "\n");
+       if (sym->rev_dep.expr) {
+               str_append(r, "  Selected by: ");
+               expr_gstr_print(sym->rev_dep.expr, r);
+               str_append(r, "\n");
+       }
+       str_append(r, "\n\n");
+}
+
+static struct gstr get_relations_str(struct symbol **sym_arr)
+{
+       struct symbol *sym;
+       struct gstr res = str_new();
+       int i;
+
+       for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
+               get_symbol_str(&res, sym);
+       if (!i)
+               str_append(&res, "No matches found.\n");
+       return res;
+}
+
+static void search_conf(void)
+{
+       struct symbol **sym_arr;
+       struct gstr res;
+       int dres;
+again:
+       dialog_clear();
+       dres = dialog_inputbox(_("Search Configuration Parameter"),
+                             _("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"),
+                             10, 75, "");
+       switch (dres) {
+       case 0:
+               break;
+       case 1:
+               show_helptext(_("Search Configuration"), search_help);
+               goto again;
+       default:
+               return;
+       }
+
+       sym_arr = sym_re_search(dialog_input_result);
+       res = get_relations_str(sym_arr);
+       free(sym_arr);
+       show_textbox(_("Search Results"), str_get(&res), 0, 0);
+       str_free(&res);
+}
+
+static void build_conf(struct menu *menu)
+{
+       struct symbol *sym;
+       struct property *prop;
+       struct menu *child;
+       int type, tmp, doint = 2;
+       tristate val;
+       char ch;
+
+       if (!menu_is_visible(menu))
+               return;
+
+       sym = menu->sym;
+       prop = menu->prompt;
+       if (!sym) {
+               if (prop && menu != current_menu) {
+                       const char *prompt = menu_get_prompt(menu);
+                       switch (prop->type) {
+                       case P_MENU:
+                               child_count++;
+                               if (single_menu_mode) {
+                                       item_make("%s%*c%s",
+                                                 menu->data ? "-->" : "++>",
+                                                 indent + 1, ' ', prompt);
+                               } else
+                                       item_make("   %*c%s  --->", indent + 1, ' ', prompt);
+
+                               item_set_tag('m');
+                               item_set_data(menu);
+                               if (single_menu_mode && menu->data)
+                                       goto conf_childs;
+                               return;
+                       default:
+                               if (prompt) {
+                                       child_count++;
+                                       item_make("---%*c%s", indent + 1, ' ', prompt);
+                                       item_set_tag(':');
+                                       item_set_data(menu);
+                               }
+                       }
+               } else
+                       doint = 0;
+               goto conf_childs;
+       }
+
+       type = sym_get_type(sym);
+       if (sym_is_choice(sym)) {
+               struct symbol *def_sym = sym_get_choice_value(sym);
+               struct menu *def_menu = NULL;
+
+               child_count++;
+               for (child = menu->list; child; child = child->next) {
+                       if (menu_is_visible(child) && child->sym == def_sym)
+                               def_menu = child;
+               }
+
+               val = sym_get_tristate_value(sym);
+               if (sym_is_changable(sym)) {
+                       switch (type) {
+                       case S_BOOLEAN:
+                               item_make("[%c]", val == no ? ' ' : '*');
+                               break;
+                       case S_TRISTATE:
+                               switch (val) {
+                               case yes: ch = '*'; break;
+                               case mod: ch = 'M'; break;
+                               default:  ch = ' '; break;
+                               }
+                               item_make("<%c>", ch);
+                               break;
+                       }
+                       item_set_tag('t');
+                       item_set_data(menu);
+               } else {
+                       item_make("   ");
+                       item_set_tag(def_menu ? 't' : ':');
+                       item_set_data(menu);
+               }
+
+               item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+               if (val == yes) {
+                       if (def_menu) {
+                               item_add_str(" (%s)", menu_get_prompt(def_menu));
+                               item_add_str("  --->");
+                               if (def_menu->list) {
+                                       indent += 2;
+                                       build_conf(def_menu);
+                                       indent -= 2;
+                               }
+                       }
+                       return;
+               }
+       } else {
+               if (menu == current_menu) {
+                       item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+                       item_set_tag(':');
+                       item_set_data(menu);
+                       goto conf_childs;
+               }
+               child_count++;
+               val = sym_get_tristate_value(sym);
+               if (sym_is_choice_value(sym) && val == yes) {
+                       item_make("   ");
+                       item_set_tag(':');
+                       item_set_data(menu);
+               } else {
+                       switch (type) {
+                       case S_BOOLEAN:
+                               if (sym_is_changable(sym))
+                                       item_make("[%c]", val == no ? ' ' : '*');
+                               else
+                                       item_make("---");
+                               item_set_tag('t');
+                               item_set_data(menu);
+                               break;
+                       case S_TRISTATE:
+                               switch (val) {
+                               case yes: ch = '*'; break;
+                               case mod: ch = 'M'; break;
+                               default:  ch = ' '; break;
+                               }
+                               if (sym_is_changable(sym))
+                                       item_make("<%c>", ch);
+                               else
+                                       item_make("---");
+                               item_set_tag('t');
+                               item_set_data(menu);
+                               break;
+                       default:
+                               tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
+                               item_make("(%s)", sym_get_string_value(sym));
+                               tmp = indent - tmp + 4;
+                               if (tmp < 0)
+                                       tmp = 0;
+                               item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
+                                            (sym_has_value(sym) || !sym_is_changable(sym)) ?
+                                            "" : " (NEW)");
+                               item_set_tag('s');
+                               item_set_data(menu);
+                               goto conf_childs;
+                       }
+               }
+               item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
+                         (sym_has_value(sym) || !sym_is_changable(sym)) ?
+                         "" : " (NEW)");
+               if (menu->prompt->type == P_MENU) {
+                       item_add_str("  --->");
+                       return;
+               }
+       }
+
+conf_childs:
+       indent += doint;
+       for (child = menu->list; child; child = child->next)
+               build_conf(child);
+       indent -= doint;
+}
+
+static void conf(struct menu *menu)
+{
+       struct menu *submenu;
+       const char *prompt = menu_get_prompt(menu);
+       struct symbol *sym;
+       struct menu *active_menu = NULL;
+       int res;
+       int s_scroll = 0;
+
+       while (1) {
+               item_reset();
+               current_menu = menu;
+               build_conf(menu);
+               if (!child_count)
+                       break;
+               if (menu == &rootmenu) {
+                       item_make("--- ");
+                       item_set_tag(':');
+                       item_make(_("    Load an Alternate Configuration File"));
+                       item_set_tag('L');
+                       item_make(_("    Save an Alternate Configuration File"));
+                       item_set_tag('S');
+               }
+               dialog_clear();
+               res = dialog_menu(prompt ? prompt : _("Main Menu"),
+                                 _(menu_instructions),
+                                 active_menu, &s_scroll);
+               if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
+                       break;
+               if (!item_activate_selected())
+                       continue;
+               if (!item_tag())
+                       continue;
+
+               submenu = item_data();
+               active_menu = item_data();
+               if (submenu)
+                       sym = submenu->sym;
+               else
+                       sym = NULL;
+
+               switch (res) {
+               case 0:
+                       switch (item_tag()) {
+                       case 'm':
+                               if (single_menu_mode)
+                                       submenu->data = (void *) (long) !submenu->data;
+                               else
+                                       conf(submenu);
+                               break;
+                       case 't':
+                               if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
+                                       conf_choice(submenu);
+                               else if (submenu->prompt->type == P_MENU)
+                                       conf(submenu);
+                               break;
+                       case 's':
+                               conf_string(submenu);
+                               break;
+                       case 'L':
+                               conf_load();
+                               break;
+                       case 'S':
+                               conf_save();
+                               break;
+                       }
+                       break;
+               case 2:
+                       if (sym)
+                               show_help(submenu);
+                       else
+                               show_helptext("README", _(mconf_readme));
+                       break;
+               case 3:
+                       if (item_is_tag('t')) {
+                               if (sym_set_tristate_value(sym, yes))
+                                       break;
+                               if (sym_set_tristate_value(sym, mod))
+                                       show_textbox(NULL, setmod_text, 6, 74);
+                       }
+                       break;
+               case 4:
+                       if (item_is_tag('t'))
+                               sym_set_tristate_value(sym, no);
+                       break;
+               case 5:
+                       if (item_is_tag('t'))
+                               sym_set_tristate_value(sym, mod);
+                       break;
+               case 6:
+                       if (item_is_tag('t'))
+                               sym_toggle_tristate_value(sym);
+                       else if (item_is_tag('m'))
+                               conf(submenu);
+                       break;
+               case 7:
+                       search_conf();
+                       break;
+               }
+       }
+}
+
+static void show_textbox(const char *title, const char *text, int r, int c)
+{
+       dialog_clear();
+       dialog_textbox(title, text, r, c);
+}
+
+static void show_helptext(const char *title, const char *text)
+{
+       show_textbox(title, text, 0, 0);
+}
+
+static void show_help(struct menu *menu)
+{
+       struct gstr help = str_new();
+       struct symbol *sym = menu->sym;
+
+       if (sym->help)
+       {
+               if (sym->name) {
+                       str_printf(&help, "CONFIG_%s:\n\n", sym->name);
+                       str_append(&help, _(sym->help));
+                       str_append(&help, "\n");
+               }
+       } else {
+               str_append(&help, nohelp_text);
+       }
+       get_symbol_str(&help, sym);
+       show_helptext(menu_get_prompt(menu), str_get(&help));
+       str_free(&help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+       const char *prompt = menu_get_prompt(menu);
+       struct menu *child;
+       struct symbol *active;
+
+       active = sym_get_choice_value(menu->sym);
+       while (1) {
+               int res;
+               int selected;
+               item_reset();
+
+               current_menu = menu;
+               for (child = menu->list; child; child = child->next) {
+                       if (!menu_is_visible(child))
+                               continue;
+                       item_make("%s", menu_get_prompt(child));
+                       item_set_data(child);
+                       if (child->sym == active)
+                               item_set_selected(1);
+                       if (child->sym == sym_get_choice_value(menu->sym))
+                               item_set_tag('X');
+               }
+               dialog_clear();
+               res = dialog_checklist(prompt ? prompt : _("Main Menu"),
+                                       _(radiolist_instructions),
+                                        15, 70, 6);
+               selected = item_activate_selected();
+               switch (res) {
+               case 0:
+                       if (selected) {
+                               child = item_data();
+                               sym_set_tristate_value(child->sym, yes);
+                       }
+                       return;
+               case 1:
+                       if (selected) {
+                               child = item_data();
+                               show_help(child);
+                               active = child->sym;
+                       } else
+                               show_help(menu);
+                       break;
+               case KEY_ESC:
+                       return;
+               case -ERRDISPLAYTOOSMALL:
+                       return;
+               }
+       }
+}
+
+static void conf_string(struct menu *menu)
+{
+       const char *prompt = menu_get_prompt(menu);
+
+       while (1) {
+               int res;
+               char *heading;
+
+               switch (sym_get_type(menu->sym)) {
+               case S_INT:
+                       heading = _(inputbox_instructions_int);
+                       break;
+               case S_HEX:
+                       heading = _(inputbox_instructions_hex);
+                       break;
+               case S_STRING:
+                       heading = _(inputbox_instructions_string);
+                       break;
+               default:
+                       heading = "Internal mconf error!";
+               }
+               dialog_clear();
+               res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
+                                     heading, 10, 75,
+                                     sym_get_string_value(menu->sym));
+               switch (res) {
+               case 0:
+                       if (sym_set_string_value(menu->sym, dialog_input_result))
+                               return;
+                       show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
+                       break;
+               case 1:
+                       show_help(menu);
+                       break;
+               case KEY_ESC:
+                       return;
+               }
+       }
+}
+
+static void conf_load(void)
+{
+
+       while (1) {
+               int res;
+               dialog_clear();
+               res = dialog_inputbox(NULL, load_config_text,
+                                     11, 55, filename);
+               switch(res) {
+               case 0:
+                       if (!dialog_input_result[0])
+                               return;
+                       if (!conf_read(dialog_input_result))
+                               return;
+                       show_textbox(NULL, _("File does not exist!"), 5, 38);
+                       break;
+               case 1:
+                       show_helptext(_("Load Alternate Configuration"), load_config_help);
+                       break;
+               case KEY_ESC:
+                       return;
+               }
+       }
+}
+
+static void conf_save(void)
+{
+       while (1) {
+               int res;
+               dialog_clear();
+               res = dialog_inputbox(NULL, save_config_text,
+                                     11, 55, filename);
+               switch(res) {
+               case 0:
+                       if (!dialog_input_result[0])
+                               return;
+                       if (!conf_write(dialog_input_result))
+                               return;
+                       show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
+                       break;
+               case 1:
+                       show_helptext(_("Save Alternate Configuration"), save_config_help);
+                       break;
+               case KEY_ESC:
+                       return;
+               }
+       }
+}
+
+static void conf_cleanup(void)
+{
+       tcsetattr(1, TCSAFLUSH, &ios_org);
+}
+
+int main(int ac, char **av)
+{
+       struct symbol *sym;
+       char *mode;
+       int res;
+
+       setlocale(LC_ALL, "");
+       bindtextdomain(PACKAGE, LOCALEDIR);
+       textdomain(PACKAGE);
+
+       conf_parse(av[1] ? av[1] : "");
+       conf_read(NULL);
+
+       sym = sym_lookup("KERNELVERSION", 0);
+       sym_calc_value(sym);
+       sprintf(menu_backtitle, _(PROJECT_NAME" v%s Configuration"),
+               sym_get_string_value(sym));
+
+       mode = getenv("MENUCONFIG_MODE");
+       if (mode) {
+               if (!strcasecmp(mode, "single_menu"))
+                       single_menu_mode = 1;
+       }
+
+       tcgetattr(1, &ios_org);
+       atexit(conf_cleanup);
+       init_wsize();
+       reset_dialog();
+       init_dialog(menu_backtitle);
+       do {
+               conf(&rootmenu);
+               dialog_clear();
+               res = dialog_yesno(NULL,
+                                  _("Do you wish to save your "
+                                    "new "PROJECT_NAME" configuration?\n"
+                                    "<ESC><ESC> to continue."),
+                                  6, 60);
+       } while (res == KEY_ESC);
+       end_dialog();
+       if (res == 0) {
+               if (conf_write(NULL)) {
+                       fprintf(stderr, _("\n\n"
+                               "Error writing "PROJECT_NAME" configuration.\n"
+                               "Your configuration changes were NOT saved."
+                               "\n\n"));
+                       return 1;
+               }
+               printf(_("\n\n"
+                       "*** End of "PROJECT_NAME" configuration.\n"
+                       "*** Execute 'make' to build, or try 'make help'."
+                       "\n\n"));
+       } else {
+               fprintf(stderr, _("\n\n"
+                       "Your configuration changes were NOT saved."
+                       "\n\n"));
+       }
+
+       return 0;
+}
diff --git a/kconfig/menu.c b/kconfig/menu.c
new file mode 100644 (file)
index 0000000..c86c27f
--- /dev/null
@@ -0,0 +1,419 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+struct menu rootmenu;
+static struct menu **last_entry_ptr;
+
+struct file *file_list;
+struct file *current_file;
+
+static void menu_warn(struct menu *menu, const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
+       vfprintf(stderr, fmt, ap);
+       fprintf(stderr, "\n");
+       va_end(ap);
+}
+
+static void prop_warn(struct property *prop, const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
+       vfprintf(stderr, fmt, ap);
+       fprintf(stderr, "\n");
+       va_end(ap);
+}
+
+void menu_init(void)
+{
+       current_entry = current_menu = &rootmenu;
+       last_entry_ptr = &rootmenu.list;
+}
+
+void menu_add_entry(struct symbol *sym)
+{
+       struct menu *menu;
+
+       menu = malloc(sizeof(*menu));
+       memset(menu, 0, sizeof(*menu));
+       menu->sym = sym;
+       menu->parent = current_menu;
+       menu->file = current_file;
+       menu->lineno = zconf_lineno();
+
+       *last_entry_ptr = menu;
+       last_entry_ptr = &menu->next;
+       current_entry = menu;
+}
+
+void menu_end_entry(void)
+{
+}
+
+struct menu *menu_add_menu(void)
+{
+       menu_end_entry();
+       last_entry_ptr = &current_entry->list;
+       return current_menu = current_entry;
+}
+
+void menu_end_menu(void)
+{
+       last_entry_ptr = &current_menu->next;
+       current_menu = current_menu->parent;
+}
+
+struct expr *menu_check_dep(struct expr *e)
+{
+       if (!e)
+               return e;
+
+       switch (e->type) {
+       case E_NOT:
+               e->left.expr = menu_check_dep(e->left.expr);
+               break;
+       case E_OR:
+       case E_AND:
+               e->left.expr = menu_check_dep(e->left.expr);
+               e->right.expr = menu_check_dep(e->right.expr);
+               break;
+       case E_SYMBOL:
+               /* change 'm' into 'm' && MODULES */
+               if (e->left.sym == &symbol_mod)
+                       return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
+               break;
+       default:
+               break;
+       }
+       return e;
+}
+
+void menu_add_dep(struct expr *dep)
+{
+       current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
+}
+
+void menu_set_type(int type)
+{
+       struct symbol *sym = current_entry->sym;
+
+       if (sym->type == type)
+               return;
+       if (sym->type == S_UNKNOWN) {
+               sym->type = type;
+               return;
+       }
+       menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'",
+           sym->name ? sym->name : "<choice>",
+           sym_type_name(sym->type), sym_type_name(type));
+}
+
+struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
+{
+       struct property *prop = prop_alloc(type, current_entry->sym);
+
+       prop->menu = current_entry;
+       prop->expr = expr;
+       prop->visible.expr = menu_check_dep(dep);
+
+       if (prompt) {
+               if (isspace(*prompt)) {
+                       prop_warn(prop, "leading whitespace ignored");
+                       while (isspace(*prompt))
+                               prompt++;
+               }
+               if (current_entry->prompt)
+                       prop_warn(prop, "prompt redefined");
+               current_entry->prompt = prop;
+       }
+       prop->text = prompt;
+
+       return prop;
+}
+
+struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
+{
+       return menu_add_prop(type, prompt, NULL, dep);
+}
+
+void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
+{
+       menu_add_prop(type, NULL, expr, dep);
+}
+
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
+{
+       menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
+}
+
+void menu_add_option(int token, char *arg)
+{
+       struct property *prop;
+
+       switch (token) {
+       case T_OPT_MODULES:
+               prop = prop_alloc(P_DEFAULT, modules_sym);
+               prop->expr = expr_alloc_symbol(current_entry->sym);
+               break;
+       case T_OPT_DEFCONFIG_LIST:
+               if (!sym_defconfig_list)
+                       sym_defconfig_list = current_entry->sym;
+               else if (sym_defconfig_list != current_entry->sym)
+                       zconf_error("trying to redefine defconfig symbol");
+               break;
+       }
+}
+
+static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2)
+{
+       return sym2->type == S_INT || sym2->type == S_HEX ||
+              (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
+}
+
+void sym_check_prop(struct symbol *sym)
+{
+       struct property *prop;
+       struct symbol *sym2;
+       for (prop = sym->prop; prop; prop = prop->next) {
+               switch (prop->type) {
+               case P_DEFAULT:
+                       if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
+                           prop->expr->type != E_SYMBOL)
+                               prop_warn(prop,
+                                   "default for config symbol '%'"
+                                   " must be a single symbol", sym->name);
+                       break;
+               case P_SELECT:
+                       sym2 = prop_get_symbol(prop);
+                       if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
+                               prop_warn(prop,
+                                   "config symbol '%s' uses select, but is "
+                                   "not boolean or tristate", sym->name);
+                       else if (sym2->type == S_UNKNOWN)
+                               prop_warn(prop,
+                                   "'select' used by config symbol '%s' "
+                                   "refer to undefined symbol '%s'",
+                                   sym->name, sym2->name);
+                       else if (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE)
+                               prop_warn(prop,
+                                   "'%s' has wrong type. 'select' only "
+                                   "accept arguments of boolean and "
+                                   "tristate type", sym2->name);
+                       break;
+               case P_RANGE:
+                       if (sym->type != S_INT && sym->type != S_HEX)
+                               prop_warn(prop, "range is only allowed "
+                                               "for int or hex symbols");
+                       if (!menu_range_valid_sym(sym, prop->expr->left.sym) ||
+                           !menu_range_valid_sym(sym, prop->expr->right.sym))
+                               prop_warn(prop, "range is invalid");
+                       break;
+               default:
+                       ;
+               }
+       }
+}
+
+void menu_finalize(struct menu *parent)
+{
+       struct menu *menu, *last_menu;
+       struct symbol *sym;
+       struct property *prop;
+       struct expr *parentdep, *basedep, *dep, *dep2, **ep;
+
+       sym = parent->sym;
+       if (parent->list) {
+               if (sym && sym_is_choice(sym)) {
+                       /* find the first choice value and find out choice type */
+                       for (menu = parent->list; menu; menu = menu->next) {
+                               if (menu->sym) {
+                                       current_entry = parent;
+                                       menu_set_type(menu->sym->type);
+                                       current_entry = menu;
+                                       menu_set_type(sym->type);
+                                       break;
+                               }
+                       }
+                       parentdep = expr_alloc_symbol(sym);
+               } else if (parent->prompt)
+                       parentdep = parent->prompt->visible.expr;
+               else
+                       parentdep = parent->dep;
+
+               for (menu = parent->list; menu; menu = menu->next) {
+                       basedep = expr_transform(menu->dep);
+                       basedep = expr_alloc_and(expr_copy(parentdep), basedep);
+                       basedep = expr_eliminate_dups(basedep);
+                       menu->dep = basedep;
+                       if (menu->sym)
+                               prop = menu->sym->prop;
+                       else
+                               prop = menu->prompt;
+                       for (; prop; prop = prop->next) {
+                               if (prop->menu != menu)
+                                       continue;
+                               dep = expr_transform(prop->visible.expr);
+                               dep = expr_alloc_and(expr_copy(basedep), dep);
+                               dep = expr_eliminate_dups(dep);
+                               if (menu->sym && menu->sym->type != S_TRISTATE)
+                                       dep = expr_trans_bool(dep);
+                               prop->visible.expr = dep;
+                               if (prop->type == P_SELECT) {
+                                       struct symbol *es = prop_get_symbol(prop);
+                                       es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
+                                                       expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
+                               }
+                       }
+               }
+               for (menu = parent->list; menu; menu = menu->next)
+                       menu_finalize(menu);
+       } else if (sym) {
+               basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
+               basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
+               basedep = expr_eliminate_dups(expr_transform(basedep));
+               last_menu = NULL;
+               for (menu = parent->next; menu; menu = menu->next) {
+                       dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
+                       if (!expr_contains_symbol(dep, sym))
+                               break;
+                       if (expr_depends_symbol(dep, sym))
+                               goto next;
+                       dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
+                       dep = expr_eliminate_dups(expr_transform(dep));
+                       dep2 = expr_copy(basedep);
+                       expr_eliminate_eq(&dep, &dep2);
+                       expr_free(dep);
+                       if (!expr_is_yes(dep2)) {
+                               expr_free(dep2);
+                               break;
+                       }
+                       expr_free(dep2);
+               next:
+                       menu_finalize(menu);
+                       menu->parent = parent;
+                       last_menu = menu;
+               }
+               if (last_menu) {
+                       parent->list = parent->next;
+                       parent->next = last_menu->next;
+                       last_menu->next = NULL;
+               }
+       }
+       for (menu = parent->list; menu; menu = menu->next) {
+               if (sym && sym_is_choice(sym) && menu->sym) {
+                       menu->sym->flags |= SYMBOL_CHOICEVAL;
+                       if (!menu->prompt)
+                               menu_warn(menu, "choice value must have a prompt");
+                       for (prop = menu->sym->prop; prop; prop = prop->next) {
+                               if (prop->type == P_PROMPT && prop->menu != menu) {
+                                       prop_warn(prop, "choice values "
+                                           "currently only support a "
+                                           "single prompt");
+                               }
+                               if (prop->type == P_DEFAULT)
+                                       prop_warn(prop, "defaults for choice "
+                                           "values not supported");
+                       }
+                       current_entry = menu;
+                       menu_set_type(sym->type);
+                       menu_add_symbol(P_CHOICE, sym, NULL);
+                       prop = sym_get_choice_prop(sym);
+                       for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
+                               ;
+                       *ep = expr_alloc_one(E_CHOICE, NULL);
+                       (*ep)->right.sym = menu->sym;
+               }
+               if (menu->list && (!menu->prompt || !menu->prompt->text)) {
+                       for (last_menu = menu->list; ; last_menu = last_menu->next) {
+                               last_menu->parent = parent;
+                               if (!last_menu->next)
+                                       break;
+                       }
+                       last_menu->next = menu->next;
+                       menu->next = menu->list;
+                       menu->list = NULL;
+               }
+       }
+
+       if (sym && !(sym->flags & SYMBOL_WARNED)) {
+               if (sym->type == S_UNKNOWN)
+                       menu_warn(parent, "config symbol defined without type");
+
+               if (sym_is_choice(sym) && !parent->prompt)
+                       menu_warn(parent, "choice must have a prompt");
+
+               /* Check properties connected to this symbol */
+               sym_check_prop(sym);
+               sym->flags |= SYMBOL_WARNED;
+       }
+
+       if (sym && !sym_is_optional(sym) && parent->prompt) {
+               sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
+                               expr_alloc_and(parent->prompt->visible.expr,
+                                       expr_alloc_symbol(&symbol_mod)));
+       }
+}
+
+bool menu_is_visible(struct menu *menu)
+{
+       struct menu *child;
+       struct symbol *sym;
+       tristate visible;
+
+       if (!menu->prompt)
+               return false;
+       sym = menu->sym;
+       if (sym) {
+               sym_calc_value(sym);
+               visible = menu->prompt->visible.tri;
+       } else
+               visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
+
+       if (visible != no)
+               return true;
+       if (!sym || sym_get_tristate_value(menu->sym) == no)
+               return false;
+
+       for (child = menu->list; child; child = child->next)
+               if (menu_is_visible(child))
+                       return true;
+       return false;
+}
+
+const char *menu_get_prompt(struct menu *menu)
+{
+       if (menu->prompt)
+               return _(menu->prompt->text);
+       else if (menu->sym)
+               return _(menu->sym->name);
+       return NULL;
+}
+
+struct menu *menu_get_root_menu(struct menu *menu)
+{
+       return &rootmenu;
+}
+
+struct menu *menu_get_parent_menu(struct menu *menu)
+{
+       enum prop_type type;
+
+       for (; menu != &rootmenu; menu = menu->parent) {
+               type = menu->prompt ? menu->prompt->type : 0;
+               if (type == P_MENU)
+                       break;
+       }
+       return menu;
+}
+
diff --git a/kconfig/symbol.c b/kconfig/symbol.c
new file mode 100644 (file)
index 0000000..ee225ce
--- /dev/null
@@ -0,0 +1,882 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <regex.h>
+#include <sys/utsname.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+struct symbol symbol_yes = {
+       .name = "y",
+       .curr = { "y", yes },
+       .flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_mod = {
+       .name = "m",
+       .curr = { "m", mod },
+       .flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_no = {
+       .name = "n",
+       .curr = { "n", no },
+       .flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_empty = {
+       .name = "",
+       .curr = { "", no },
+       .flags = SYMBOL_VALID,
+};
+
+int sym_change_count;
+struct symbol *sym_defconfig_list;
+struct symbol *modules_sym;
+tristate modules_val;
+
+void sym_add_default(struct symbol *sym, const char *def)
+{
+       struct property *prop = prop_alloc(P_DEFAULT, sym);
+
+       prop->expr = expr_alloc_symbol(sym_lookup(def, 1));
+}
+
+void sym_init(void)
+{
+       struct symbol *sym;
+       struct utsname uts;
+       char *p;
+       static bool inited = false;
+
+       if (inited)
+               return;
+       inited = true;
+
+       uname(&uts);
+
+       sym = sym_lookup("ARCH", 0);
+       sym->type = S_STRING;
+       sym->flags |= SYMBOL_AUTO;
+       p = getenv("ARCH");
+       if (p)
+               sym_add_default(sym, p);
+
+       sym = sym_lookup("KERNELVERSION", 0);
+       sym->type = S_STRING;
+       sym->flags |= SYMBOL_AUTO;
+       p = getenv("KERNELVERSION");
+       if (p)
+               sym_add_default(sym, p);
+
+       sym = sym_lookup("UNAME_RELEASE", 0);
+       sym->type = S_STRING;
+       sym->flags |= SYMBOL_AUTO;
+       sym_add_default(sym, uts.release);
+}
+
+enum symbol_type sym_get_type(struct symbol *sym)
+{
+       enum symbol_type type = sym->type;
+
+       if (type == S_TRISTATE) {
+               if (sym_is_choice_value(sym) && sym->visible == yes)
+                       type = S_BOOLEAN;
+               else if (modules_val == no)
+                       type = S_BOOLEAN;
+       }
+       return type;
+}
+
+const char *sym_type_name(enum symbol_type type)
+{
+       switch (type) {
+       case S_BOOLEAN:
+               return "boolean";
+       case S_TRISTATE:
+               return "tristate";
+       case S_INT:
+               return "integer";
+       case S_HEX:
+               return "hex";
+       case S_STRING:
+               return "string";
+       case S_UNKNOWN:
+               return "unknown";
+       case S_OTHER:
+               break;
+       }
+       return "???";
+}
+
+struct property *sym_get_choice_prop(struct symbol *sym)
+{
+       struct property *prop;
+
+       for_all_choices(sym, prop)
+               return prop;
+       return NULL;
+}
+
+struct property *sym_get_default_prop(struct symbol *sym)
+{
+       struct property *prop;
+
+       for_all_defaults(sym, prop) {
+               prop->visible.tri = expr_calc_value(prop->visible.expr);
+               if (prop->visible.tri != no)
+                       return prop;
+       }
+       return NULL;
+}
+
+struct property *sym_get_range_prop(struct symbol *sym)
+{
+       struct property *prop;
+
+       for_all_properties(sym, prop, P_RANGE) {
+               prop->visible.tri = expr_calc_value(prop->visible.expr);
+               if (prop->visible.tri != no)
+                       return prop;
+       }
+       return NULL;
+}
+
+static int sym_get_range_val(struct symbol *sym, int base)
+{
+       sym_calc_value(sym);
+       switch (sym->type) {
+       case S_INT:
+               base = 10;
+               break;
+       case S_HEX:
+               base = 16;
+               break;
+       default:
+               break;
+       }
+       return strtol(sym->curr.val, NULL, base);
+}
+
+static void sym_validate_range(struct symbol *sym)
+{
+       struct property *prop;
+       int base, val, val2;
+       char str[64];
+
+       switch (sym->type) {
+       case S_INT:
+               base = 10;
+               break;
+       case S_HEX:
+               base = 16;
+               break;
+       default:
+               return;
+       }
+       prop = sym_get_range_prop(sym);
+       if (!prop)
+               return;
+       val = strtol(sym->curr.val, NULL, base);
+       val2 = sym_get_range_val(prop->expr->left.sym, base);
+       if (val >= val2) {
+               val2 = sym_get_range_val(prop->expr->right.sym, base);
+               if (val <= val2)
+                       return;
+       }
+       if (sym->type == S_INT)
+               sprintf(str, "%d", val2);
+       else
+               sprintf(str, "0x%x", val2);
+       sym->curr.val = strdup(str);
+}
+
+static void sym_calc_visibility(struct symbol *sym)
+{
+       struct property *prop;
+       tristate tri;
+
+       /* any prompt visible? */
+       tri = no;
+       for_all_prompts(sym, prop) {
+               prop->visible.tri = expr_calc_value(prop->visible.expr);
+               tri = E_OR(tri, prop->visible.tri);
+       }
+       if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
+               tri = yes;
+       if (sym->visible != tri) {
+               sym->visible = tri;
+               sym_set_changed(sym);
+       }
+       if (sym_is_choice_value(sym))
+               return;
+       tri = no;
+       if (sym->rev_dep.expr)
+               tri = expr_calc_value(sym->rev_dep.expr);
+       if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
+               tri = yes;
+       if (sym->rev_dep.tri != tri) {
+               sym->rev_dep.tri = tri;
+               sym_set_changed(sym);
+       }
+}
+
+static struct symbol *sym_calc_choice(struct symbol *sym)
+{
+       struct symbol *def_sym;
+       struct property *prop;
+       struct expr *e;
+
+       /* is the user choice visible? */
+       def_sym = sym->def[S_DEF_USER].val;
+       if (def_sym) {
+               sym_calc_visibility(def_sym);
+               if (def_sym->visible != no)
+                       return def_sym;
+       }
+
+       /* any of the defaults visible? */
+       for_all_defaults(sym, prop) {
+               prop->visible.tri = expr_calc_value(prop->visible.expr);
+               if (prop->visible.tri == no)
+                       continue;
+               def_sym = prop_get_symbol(prop);
+               sym_calc_visibility(def_sym);
+               if (def_sym->visible != no)
+                       return def_sym;
+       }
+
+       /* just get the first visible value */
+       prop = sym_get_choice_prop(sym);
+       for (e = prop->expr; e; e = e->left.expr) {
+               def_sym = e->right.sym;
+               sym_calc_visibility(def_sym);
+               if (def_sym->visible != no)
+                       return def_sym;
+       }
+
+       /* no choice? reset tristate value */
+       sym->curr.tri = no;
+       return NULL;
+}
+
+void sym_calc_value(struct symbol *sym)
+{
+       struct symbol_value newval, oldval;
+       struct property *prop;
+       struct expr *e;
+
+       if (!sym)
+               return;
+
+       if (sym->flags & SYMBOL_VALID)
+               return;
+       sym->flags |= SYMBOL_VALID;
+
+       oldval = sym->curr;
+
+       switch (sym->type) {
+       case S_INT:
+       case S_HEX:
+       case S_STRING:
+               newval = symbol_empty.curr;
+               break;
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               newval = symbol_no.curr;
+               break;
+       default:
+               sym->curr.val = sym->name;
+               sym->curr.tri = no;
+               return;
+       }
+       if (!sym_is_choice_value(sym))
+               sym->flags &= ~SYMBOL_WRITE;
+
+       sym_calc_visibility(sym);
+
+       /* set default if recursively called */
+       sym->curr = newval;
+
+       switch (sym_get_type(sym)) {
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               if (sym_is_choice_value(sym) && sym->visible == yes) {
+                       prop = sym_get_choice_prop(sym);
+                       newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
+               } else if (E_OR(sym->visible, sym->rev_dep.tri) != no) {
+                       sym->flags |= SYMBOL_WRITE;
+                       if (sym_has_value(sym))
+                               newval.tri = sym->def[S_DEF_USER].tri;
+                       else if (!sym_is_choice(sym)) {
+                               prop = sym_get_default_prop(sym);
+                               if (prop)
+                                       newval.tri = expr_calc_value(prop->expr);
+                       }
+                       newval.tri = E_OR(E_AND(newval.tri, sym->visible), sym->rev_dep.tri);
+               } else if (!sym_is_choice(sym)) {
+                       prop = sym_get_default_prop(sym);
+                       if (prop) {
+                               sym->flags |= SYMBOL_WRITE;
+                               newval.tri = expr_calc_value(prop->expr);
+                       }
+               }
+               if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
+                       newval.tri = yes;
+               break;
+       case S_STRING:
+       case S_HEX:
+       case S_INT:
+               if (sym->visible != no) {
+                       sym->flags |= SYMBOL_WRITE;
+                       if (sym_has_value(sym)) {
+                               newval.val = sym->def[S_DEF_USER].val;
+                               break;
+                       }
+               }
+               prop = sym_get_default_prop(sym);
+               if (prop) {
+                       struct symbol *ds = prop_get_symbol(prop);
+                       if (ds) {
+                               sym->flags |= SYMBOL_WRITE;
+                               sym_calc_value(ds);
+                               newval.val = ds->curr.val;
+                       }
+               }
+               break;
+       default:
+               ;
+       }
+
+       sym->curr = newval;
+       if (sym_is_choice(sym) && newval.tri == yes)
+               sym->curr.val = sym_calc_choice(sym);
+       sym_validate_range(sym);
+
+       if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
+               sym_set_changed(sym);
+               if (modules_sym == sym) {
+                       sym_set_all_changed();
+                       modules_val = modules_sym->curr.tri;
+               }
+       }
+
+       if (sym_is_choice(sym)) {
+               int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
+               prop = sym_get_choice_prop(sym);
+               for (e = prop->expr; e; e = e->left.expr) {
+                       e->right.sym->flags |= flags;
+                       if (flags & SYMBOL_CHANGED)
+                               sym_set_changed(e->right.sym);
+               }
+       }
+}
+
+void sym_clear_all_valid(void)
+{
+       struct symbol *sym;
+       int i;
+
+       for_all_symbols(i, sym)
+               sym->flags &= ~SYMBOL_VALID;
+       sym_change_count++;
+       if (modules_sym)
+               sym_calc_value(modules_sym);
+}
+
+void sym_set_changed(struct symbol *sym)
+{
+       struct property *prop;
+
+       sym->flags |= SYMBOL_CHANGED;
+       for (prop = sym->prop; prop; prop = prop->next) {
+               if (prop->menu)
+                       prop->menu->flags |= MENU_CHANGED;
+       }
+}
+
+void sym_set_all_changed(void)
+{
+       struct symbol *sym;
+       int i;
+
+       for_all_symbols(i, sym)
+               sym_set_changed(sym);
+}
+
+bool sym_tristate_within_range(struct symbol *sym, tristate val)
+{
+       int type = sym_get_type(sym);
+
+       if (sym->visible == no)
+               return false;
+
+       if (type != S_BOOLEAN && type != S_TRISTATE)
+               return false;
+
+       if (type == S_BOOLEAN && val == mod)
+               return false;
+       if (sym->visible <= sym->rev_dep.tri)
+               return false;
+       if (sym_is_choice_value(sym) && sym->visible == yes)
+               return val == yes;
+       return val >= sym->rev_dep.tri && val <= sym->visible;
+}
+
+bool sym_set_tristate_value(struct symbol *sym, tristate val)
+{
+       tristate oldval = sym_get_tristate_value(sym);
+
+       if (oldval != val && !sym_tristate_within_range(sym, val))
+               return false;
+
+       if (!(sym->flags & SYMBOL_DEF_USER)) {
+               sym->flags |= SYMBOL_DEF_USER;
+               sym_set_changed(sym);
+       }
+       /*
+        * setting a choice value also resets the new flag of the choice
+        * symbol and all other choice values.
+        */
+       if (sym_is_choice_value(sym) && val == yes) {
+               struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+               struct property *prop;
+               struct expr *e;
+
+               cs->def[S_DEF_USER].val = sym;
+               cs->flags |= SYMBOL_DEF_USER;
+               prop = sym_get_choice_prop(cs);
+               for (e = prop->expr; e; e = e->left.expr) {
+                       if (e->right.sym->visible != no)
+                               e->right.sym->flags |= SYMBOL_DEF_USER;
+               }
+       }
+
+       sym->def[S_DEF_USER].tri = val;
+       if (oldval != val)
+               sym_clear_all_valid();
+
+       return true;
+}
+
+tristate sym_toggle_tristate_value(struct symbol *sym)
+{
+       tristate oldval, newval;
+
+       oldval = newval = sym_get_tristate_value(sym);
+       do {
+               switch (newval) {
+               case no:
+                       newval = mod;
+                       break;
+               case mod:
+                       newval = yes;
+                       break;
+               case yes:
+                       newval = no;
+                       break;
+               }
+               if (sym_set_tristate_value(sym, newval))
+                       break;
+       } while (oldval != newval);
+       return newval;
+}
+
+bool sym_string_valid(struct symbol *sym, const char *str)
+{
+       signed char ch;
+
+       switch (sym->type) {
+       case S_STRING:
+               return true;
+       case S_INT:
+               ch = *str++;
+               if (ch == '-')
+                       ch = *str++;
+               if (!isdigit(ch))
+                       return false;
+               if (ch == '0' && *str != 0)
+                       return false;
+               while ((ch = *str++)) {
+                       if (!isdigit(ch))
+                               return false;
+               }
+               return true;
+       case S_HEX:
+               if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
+                       str += 2;
+               ch = *str++;
+               do {
+                       if (!isxdigit(ch))
+                               return false;
+               } while ((ch = *str++));
+               return true;
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               switch (str[0]) {
+               case 'y': case 'Y':
+               case 'm': case 'M':
+               case 'n': case 'N':
+                       return true;
+               }
+               return false;
+       default:
+               return false;
+       }
+}
+
+bool sym_string_within_range(struct symbol *sym, const char *str)
+{
+       struct property *prop;
+       int val;
+
+       switch (sym->type) {
+       case S_STRING:
+               return sym_string_valid(sym, str);
+       case S_INT:
+               if (!sym_string_valid(sym, str))
+                       return false;
+               prop = sym_get_range_prop(sym);
+               if (!prop)
+                       return true;
+               val = strtol(str, NULL, 10);
+               return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
+                      val <= sym_get_range_val(prop->expr->right.sym, 10);
+       case S_HEX:
+               if (!sym_string_valid(sym, str))
+                       return false;
+               prop = sym_get_range_prop(sym);
+               if (!prop)
+                       return true;
+               val = strtol(str, NULL, 16);
+               return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
+                      val <= sym_get_range_val(prop->expr->right.sym, 16);
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               switch (str[0]) {
+               case 'y': case 'Y':
+                       return sym_tristate_within_range(sym, yes);
+               case 'm': case 'M':
+                       return sym_tristate_within_range(sym, mod);
+               case 'n': case 'N':
+                       return sym_tristate_within_range(sym, no);
+               }
+               return false;
+       default:
+               return false;
+       }
+}
+
+bool sym_set_string_value(struct symbol *sym, const char *newval)
+{
+       const char *oldval;
+       char *val;
+       int size;
+
+       switch (sym->type) {
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               switch (newval[0]) {
+               case 'y': case 'Y':
+                       return sym_set_tristate_value(sym, yes);
+               case 'm': case 'M':
+                       return sym_set_tristate_value(sym, mod);
+               case 'n': case 'N':
+                       return sym_set_tristate_value(sym, no);
+               }
+               return false;
+       default:
+               ;
+       }
+
+       if (!sym_string_within_range(sym, newval))
+               return false;
+
+       if (!(sym->flags & SYMBOL_DEF_USER)) {
+               sym->flags |= SYMBOL_DEF_USER;
+               sym_set_changed(sym);
+       }
+
+       oldval = sym->def[S_DEF_USER].val;
+       size = strlen(newval) + 1;
+       if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
+               size += 2;
+               sym->def[S_DEF_USER].val = val = malloc(size);
+               *val++ = '0';
+               *val++ = 'x';
+       } else if (!oldval || strcmp(oldval, newval))
+               sym->def[S_DEF_USER].val = val = malloc(size);
+       else
+               return true;
+
+       strcpy(val, newval);
+       free((void *)oldval);
+       sym_clear_all_valid();
+
+       return true;
+}
+
+const char *sym_get_string_value(struct symbol *sym)
+{
+       tristate val;
+
+       switch (sym->type) {
+       case S_BOOLEAN:
+       case S_TRISTATE:
+               val = sym_get_tristate_value(sym);
+               switch (val) {
+               case no:
+                       return "n";
+               case mod:
+                       return "m";
+               case yes:
+                       return "y";
+               }
+               break;
+       default:
+               ;
+       }
+       return (const char *)sym->curr.val;
+}
+
+bool sym_is_changable(struct symbol *sym)
+{
+       return sym->visible > sym->rev_dep.tri;
+}
+
+struct symbol *sym_lookup(const char *name, int isconst)
+{
+       struct symbol *symbol;
+       const char *ptr;
+       char *new_name;
+       int hash = 0;
+
+       if (name) {
+               if (name[0] && !name[1]) {
+                       switch (name[0]) {
+                       case 'y': return &symbol_yes;
+                       case 'm': return &symbol_mod;
+                       case 'n': return &symbol_no;
+                       }
+               }
+               for (ptr = name; *ptr; ptr++)
+                       hash += *ptr;
+               hash &= 0xff;
+
+               for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
+                       if (!strcmp(symbol->name, name)) {
+                               if ((isconst && symbol->flags & SYMBOL_CONST) ||
+                                   (!isconst && !(symbol->flags & SYMBOL_CONST)))
+                                       return symbol;
+                       }
+               }
+               new_name = strdup(name);
+       } else {
+               new_name = NULL;
+               hash = 256;
+       }
+
+       symbol = malloc(sizeof(*symbol));
+       memset(symbol, 0, sizeof(*symbol));
+       symbol->name = new_name;
+       symbol->type = S_UNKNOWN;
+       if (isconst)
+               symbol->flags |= SYMBOL_CONST;
+
+       symbol->next = symbol_hash[hash];
+       symbol_hash[hash] = symbol;
+
+       return symbol;
+}
+
+struct symbol *sym_find(const char *name)
+{
+       struct symbol *symbol = NULL;
+       const char *ptr;
+       int hash = 0;
+
+       if (!name)
+               return NULL;
+
+       if (name[0] && !name[1]) {
+               switch (name[0]) {
+               case 'y': return &symbol_yes;
+               case 'm': return &symbol_mod;
+               case 'n': return &symbol_no;
+               }
+       }
+       for (ptr = name; *ptr; ptr++)
+               hash += *ptr;
+       hash &= 0xff;
+
+       for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
+               if (!strcmp(symbol->name, name) &&
+                   !(symbol->flags & SYMBOL_CONST))
+                               break;
+       }
+
+       return symbol;
+}
+
+struct symbol **sym_re_search(const char *pattern)
+{
+       struct symbol *sym, **sym_arr = NULL;
+       int i, cnt, size;
+       regex_t re;
+
+       cnt = size = 0;
+       /* Skip if empty */
+       if (strlen(pattern) == 0)
+               return NULL;
+       if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
+               return NULL;
+
+       for_all_symbols(i, sym) {
+               if (sym->flags & SYMBOL_CONST || !sym->name)
+                       continue;
+               if (regexec(&re, sym->name, 0, NULL, 0))
+                       continue;
+               if (cnt + 1 >= size) {
+                       void *tmp = sym_arr;
+                       size += 16;
+                       sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
+                       if (!sym_arr) {
+                               free(tmp);
+                               return NULL;
+                       }
+               }
+               sym_arr[cnt++] = sym;
+       }
+       if (sym_arr)
+               sym_arr[cnt] = NULL;
+       regfree(&re);
+
+       return sym_arr;
+}
+
+
+struct symbol *sym_check_deps(struct symbol *sym);
+
+static struct symbol *sym_check_expr_deps(struct expr *e)
+{
+       struct symbol *sym;
+
+       if (!e)
+               return NULL;
+       switch (e->type) {
+       case E_OR:
+       case E_AND:
+               sym = sym_check_expr_deps(e->left.expr);
+               if (sym)
+                       return sym;
+               return sym_check_expr_deps(e->right.expr);
+       case E_NOT:
+               return sym_check_expr_deps(e->left.expr);
+       case E_EQUAL:
+       case E_UNEQUAL:
+               sym = sym_check_deps(e->left.sym);
+               if (sym)
+                       return sym;
+               return sym_check_deps(e->right.sym);
+       case E_SYMBOL:
+               return sym_check_deps(e->left.sym);
+       default:
+               break;
+       }
+       printf("Oops! How to check %d?\n", e->type);
+       return NULL;
+}
+
+struct symbol *sym_check_deps(struct symbol *sym)
+{
+       struct symbol *sym2;
+       struct property *prop;
+
+       if (sym->flags & SYMBOL_CHECK) {
+               printf("Warning! Found recursive dependency: %s", sym->name);
+               return sym;
+       }
+       if (sym->flags & SYMBOL_CHECKED)
+               return NULL;
+
+       sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
+       sym2 = sym_check_expr_deps(sym->rev_dep.expr);
+       if (sym2)
+               goto out;
+
+       for (prop = sym->prop; prop; prop = prop->next) {
+               if (prop->type == P_CHOICE || prop->type == P_SELECT)
+                       continue;
+               sym2 = sym_check_expr_deps(prop->visible.expr);
+               if (sym2)
+                       goto out;
+               if (prop->type != P_DEFAULT || sym_is_choice(sym))
+                       continue;
+               sym2 = sym_check_expr_deps(prop->expr);
+               if (sym2)
+                       goto out;
+       }
+out:
+       if (sym2) {
+               printf(" %s", sym->name);
+               if (sym2 == sym) {
+                       printf("\n");
+                       sym2 = NULL;
+               }
+       }
+       sym->flags &= ~SYMBOL_CHECK;
+       return sym2;
+}
+
+struct property *prop_alloc(enum prop_type type, struct symbol *sym)
+{
+       struct property *prop;
+       struct property **propp;
+
+       prop = malloc(sizeof(*prop));
+       memset(prop, 0, sizeof(*prop));
+       prop->type = type;
+       prop->sym = sym;
+       prop->file = current_file;
+       prop->lineno = zconf_lineno();
+
+       /* append property to the prop list of symbol */
+       if (sym) {
+               for (propp = &sym->prop; *propp; propp = &(*propp)->next)
+                       ;
+               *propp = prop;
+       }
+
+       return prop;
+}
+
+struct symbol *prop_get_symbol(struct property *prop)
+{
+       if (prop->expr && (prop->expr->type == E_SYMBOL ||
+                          prop->expr->type == E_CHOICE))
+               return prop->expr->left.sym;
+       return NULL;
+}
+
+const char *prop_get_type_name(enum prop_type type)
+{
+       switch (type) {
+       case P_PROMPT:
+               return "prompt";
+       case P_COMMENT:
+               return "comment";
+       case P_MENU:
+               return "menu";
+       case P_DEFAULT:
+               return "default";
+       case P_CHOICE:
+               return "choice";
+       case P_SELECT:
+               return "select";
+       case P_RANGE:
+               return "range";
+       case P_UNKNOWN:
+               break;
+       }
+       return "unknown";
+}
diff --git a/kconfig/util.c b/kconfig/util.c
new file mode 100644 (file)
index 0000000..e3f28b9
--- /dev/null
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
+ * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <string.h>
+#include "lkc.h"
+
+/* file already present in list? If not add it */
+struct file *file_lookup(const char *name)
+{
+       struct file *file;
+
+       for (file = file_list; file; file = file->next) {
+               if (!strcmp(name, file->name))
+                       return file;
+       }
+
+       file = malloc(sizeof(*file));
+       memset(file, 0, sizeof(*file));
+       file->name = strdup(name);
+       file->next = file_list;
+       file_list = file;
+       return file;
+}
+
+/* write a dependency file as used by kbuild to track dependencies */
+int file_write_dep(const char *name)
+{
+       struct file *file;
+       FILE *out;
+
+       if (!name)
+               name = ".kconfig.d";
+       out = fopen("..config.tmp", "w");
+       if (!out)
+               return 1;
+       fprintf(out, "deps_config := \\\n");
+       for (file = file_list; file; file = file->next) {
+               if (file->next)
+                       fprintf(out, "\t%s \\\n", file->name);
+               else
+                       fprintf(out, "\t%s\n", file->name);
+       }
+       fprintf(out, "\ninclude/config/auto.conf: \\\n"
+                    "\t$(deps_config)\n\n"
+                    "$(deps_config): ;\n");
+       fclose(out);
+       rename("..config.tmp", name);
+       return 0;
+}
+
+
+/* Allocate initial growable sting */
+struct gstr str_new(void)
+{
+       struct gstr gs;
+       gs.s = malloc(sizeof(char) * 64);
+       gs.len = 16;
+       strcpy(gs.s, "\0");
+       return gs;
+}
+
+/* Allocate and assign growable string */
+struct gstr str_assign(const char *s)
+{
+       struct gstr gs;
+       gs.s = strdup(s);
+       gs.len = strlen(s) + 1;
+       return gs;
+}
+
+/* Free storage for growable string */
+void str_free(struct gstr *gs)
+{
+       if (gs->s)
+               free(gs->s);
+       gs->s = NULL;
+       gs->len = 0;
+}
+
+/* Append to growable string */
+void str_append(struct gstr *gs, const char *s)
+{
+       size_t l = strlen(gs->s) + strlen(s) + 1;
+       if (l > gs->len) {
+               gs->s   = realloc(gs->s, l);
+               gs->len = l;
+       }
+       strcat(gs->s, s);
+}
+
+/* Append printf formatted string to growable string */
+void str_printf(struct gstr *gs, const char *fmt, ...)
+{
+       va_list ap;
+       char s[10000]; /* big enough... */
+       va_start(ap, fmt);
+       vsnprintf(s, sizeof(s), fmt, ap);
+       str_append(gs, s);
+       va_end(ap);
+}
+
+/* Retrieve value of growable string */
+const char *str_get(struct gstr *gs)
+{
+       return gs->s;
+}
+
diff --git a/kconfig/zconf.hash.c_shipped b/kconfig/zconf.hash.c_shipped
new file mode 100644 (file)
index 0000000..47c8b5b
--- /dev/null
@@ -0,0 +1,242 @@
+/* ANSI-C code produced by gperf version 3.0.1 */
+/* Command-line: gperf  */
+/* Computed positions: -k'1,3' */
+
+#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
+      && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
+      && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
+      && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
+      && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
+      && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
+      && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
+      && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
+      && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
+      && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
+      && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
+      && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
+      && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
+      && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
+      && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
+      && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
+      && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
+      && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
+      && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
+      && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
+      && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
+      && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
+      && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
+/* The character set is not based on ISO-646.  */
+#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
+#endif
+
+struct kconf_id;
+/* maximum key range = 45, duplicates = 0 */
+
+#ifdef __GNUC__
+__inline
+#else
+#ifdef __cplusplus
+inline
+#endif
+#endif
+static unsigned int
+kconf_id_hash (register const char *str, register unsigned int len)
+{
+  static unsigned char asso_values[] =
+    {
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 25, 30, 15,
+       0, 15,  0, 47,  5, 15, 47, 47, 30, 20,
+       5,  0, 25, 15,  0,  0, 10, 35, 47, 47,
+       5, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+      47, 47, 47, 47, 47, 47
+    };
+  register int hval = len;
+
+  switch (hval)
+    {
+      default:
+        hval += asso_values[(unsigned char)str[2]];
+      /*FALLTHROUGH*/
+      case 2:
+      case 1:
+        hval += asso_values[(unsigned char)str[0]];
+        break;
+    }
+  return hval;
+}
+
+struct kconf_id_strings_t
+  {
+    char kconf_id_strings_str2[sizeof("on")];
+    char kconf_id_strings_str6[sizeof("string")];
+    char kconf_id_strings_str7[sizeof("default")];
+    char kconf_id_strings_str8[sizeof("def_bool")];
+    char kconf_id_strings_str10[sizeof("range")];
+    char kconf_id_strings_str11[sizeof("def_boolean")];
+    char kconf_id_strings_str12[sizeof("def_tristate")];
+    char kconf_id_strings_str13[sizeof("hex")];
+    char kconf_id_strings_str14[sizeof("defconfig_list")];
+    char kconf_id_strings_str16[sizeof("option")];
+    char kconf_id_strings_str17[sizeof("if")];
+    char kconf_id_strings_str18[sizeof("optional")];
+    char kconf_id_strings_str20[sizeof("endif")];
+    char kconf_id_strings_str21[sizeof("choice")];
+    char kconf_id_strings_str22[sizeof("endmenu")];
+    char kconf_id_strings_str23[sizeof("requires")];
+    char kconf_id_strings_str24[sizeof("endchoice")];
+    char kconf_id_strings_str26[sizeof("config")];
+    char kconf_id_strings_str27[sizeof("modules")];
+    char kconf_id_strings_str28[sizeof("int")];
+    char kconf_id_strings_str29[sizeof("menu")];
+    char kconf_id_strings_str31[sizeof("prompt")];
+    char kconf_id_strings_str32[sizeof("depends")];
+    char kconf_id_strings_str33[sizeof("tristate")];
+    char kconf_id_strings_str34[sizeof("bool")];
+    char kconf_id_strings_str35[sizeof("menuconfig")];
+    char kconf_id_strings_str36[sizeof("select")];
+    char kconf_id_strings_str37[sizeof("boolean")];
+    char kconf_id_strings_str39[sizeof("help")];
+    char kconf_id_strings_str41[sizeof("source")];
+    char kconf_id_strings_str42[sizeof("comment")];
+    char kconf_id_strings_str43[sizeof("mainmenu")];
+    char kconf_id_strings_str46[sizeof("enable")];
+  };
+static struct kconf_id_strings_t kconf_id_strings_contents =
+  {
+    "on",
+    "string",
+    "default",
+    "def_bool",
+    "range",
+    "def_boolean",
+    "def_tristate",
+    "hex",
+    "defconfig_list",
+    "option",
+    "if",
+    "optional",
+    "endif",
+    "choice",
+    "endmenu",
+    "requires",
+    "endchoice",
+    "config",
+    "modules",
+    "int",
+    "menu",
+    "prompt",
+    "depends",
+    "tristate",
+    "bool",
+    "menuconfig",
+    "select",
+    "boolean",
+    "help",
+    "source",
+    "comment",
+    "mainmenu",
+    "enable"
+  };
+#define kconf_id_strings ((const char *) &kconf_id_strings_contents)
+#ifdef __GNUC__
+__inline
+#endif
+struct kconf_id *
+kconf_id_lookup (register const char *str, register unsigned int len)
+{
+  enum
+    {
+      TOTAL_KEYWORDS = 33,
+      MIN_WORD_LENGTH = 2,
+      MAX_WORD_LENGTH = 14,
+      MIN_HASH_VALUE = 2,
+      MAX_HASH_VALUE = 46
+    };
+
+  static struct kconf_id wordlist[] =
+    {
+      {-1}, {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2,            T_ON,           TF_PARAM},
+      {-1}, {-1}, {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str6,            T_TYPE,         TF_COMMAND, S_STRING},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str7,    T_DEFAULT,      TF_COMMAND, S_UNKNOWN},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str8,    T_DEFAULT,      TF_COMMAND, S_BOOLEAN},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str10,           T_RANGE,        TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str11,   T_DEFAULT,      TF_COMMAND, S_BOOLEAN},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str12,   T_DEFAULT,      TF_COMMAND, S_TRISTATE},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str13,           T_TYPE,         TF_COMMAND, S_HEX},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str14,   T_OPT_DEFCONFIG_LIST,TF_OPTION},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str16,           T_OPTION,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str17,           T_IF,           TF_COMMAND|TF_PARAM},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18,   T_OPTIONAL,     TF_COMMAND},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str20,           T_ENDIF,        TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str21,           T_CHOICE,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str22,   T_ENDMENU,      TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str23,   T_REQUIRES,     TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str24,   T_ENDCHOICE,    TF_COMMAND},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str26,           T_CONFIG,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str27,   T_OPT_MODULES,  TF_OPTION},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str28,           T_TYPE,         TF_COMMAND, S_INT},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str29,           T_MENU,         TF_COMMAND},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str31,           T_PROMPT,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str32,   T_DEPENDS,      TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str33,   T_TYPE,         TF_COMMAND, S_TRISTATE},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str34,           T_TYPE,         TF_COMMAND, S_BOOLEAN},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str35,   T_MENUCONFIG,   TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str36,           T_SELECT,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str37,   T_TYPE,         TF_COMMAND, S_BOOLEAN},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str39,           T_HELP,         TF_COMMAND},
+      {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str41,           T_SOURCE,       TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str42,   T_COMMENT,      TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str43,   T_MAINMENU,     TF_COMMAND},
+      {-1}, {-1},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str46,           T_SELECT,       TF_COMMAND}
+    };
+
+  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
+    {
+      register int key = kconf_id_hash (str, len);
+
+      if (key <= MAX_HASH_VALUE && key >= 0)
+        {
+          register int o = wordlist[key].name;
+          if (o >= 0)
+            {
+              register const char *s = o + kconf_id_strings;
+
+              if (*str == *s && !strncmp (str + 1, s + 1, len - 1) && s[len] == '\0')
+                return &wordlist[key];
+            }
+        }
+    }
+  return 0;
+}
+
diff --git a/kconfig/zconf.tab.c_shipped b/kconfig/zconf.tab.c_shipped
new file mode 100644 (file)
index 0000000..34ccabd
--- /dev/null
@@ -0,0 +1,2345 @@
+/* A Bison parser, made by GNU Bison 2.1.  */
+
+/* Skeleton parser for Yacc-like parsing with Bison,
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* As a special exception, when this file is copied by Bison into a
+   Bison output file, you may use that output file without restriction.
+   This special exception was added by the Free Software Foundation
+   in version 1.24 of Bison.  */
+
+/* Written by Richard Stallman by simplifying the original so called
+   ``semantic'' parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Bison version.  */
+#define YYBISON_VERSION "2.1"
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 0
+
+/* Using locations.  */
+#define YYLSP_NEEDED 0
+
+/* Substitute the variable and function names.  */
+#define yyparse zconfparse
+#define yylex   zconflex
+#define yyerror zconferror
+#define yylval  zconflval
+#define yychar  zconfchar
+#define yydebug zconfdebug
+#define yynerrs zconfnerrs
+
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     T_MAINMENU = 258,
+     T_MENU = 259,
+     T_ENDMENU = 260,
+     T_SOURCE = 261,
+     T_CHOICE = 262,
+     T_ENDCHOICE = 263,
+     T_COMMENT = 264,
+     T_CONFIG = 265,
+     T_MENUCONFIG = 266,
+     T_HELP = 267,
+     T_HELPTEXT = 268,
+     T_IF = 269,
+     T_ENDIF = 270,
+     T_DEPENDS = 271,
+     T_REQUIRES = 272,
+     T_OPTIONAL = 273,
+     T_PROMPT = 274,
+     T_TYPE = 275,
+     T_DEFAULT = 276,
+     T_SELECT = 277,
+     T_RANGE = 278,
+     T_OPTION = 279,
+     T_ON = 280,
+     T_WORD = 281,
+     T_WORD_QUOTE = 282,
+     T_UNEQUAL = 283,
+     T_CLOSE_PAREN = 284,
+     T_OPEN_PAREN = 285,
+     T_EOL = 286,
+     T_OR = 287,
+     T_AND = 288,
+     T_EQUAL = 289,
+     T_NOT = 290
+   };
+#endif
+/* Tokens.  */
+#define T_MAINMENU 258
+#define T_MENU 259
+#define T_ENDMENU 260
+#define T_SOURCE 261
+#define T_CHOICE 262
+#define T_ENDCHOICE 263
+#define T_COMMENT 264
+#define T_CONFIG 265
+#define T_MENUCONFIG 266
+#define T_HELP 267
+#define T_HELPTEXT 268
+#define T_IF 269
+#define T_ENDIF 270
+#define T_DEPENDS 271
+#define T_REQUIRES 272
+#define T_OPTIONAL 273
+#define T_PROMPT 274
+#define T_TYPE 275
+#define T_DEFAULT 276
+#define T_SELECT 277
+#define T_RANGE 278
+#define T_OPTION 279
+#define T_ON 280
+#define T_WORD 281
+#define T_WORD_QUOTE 282
+#define T_UNEQUAL 283
+#define T_CLOSE_PAREN 284
+#define T_OPEN_PAREN 285
+#define T_EOL 286
+#define T_OR 287
+#define T_AND 288
+#define T_EQUAL 289
+#define T_NOT 290
+
+
+
+
+/* Copy the first part of user declarations.  */
+
+
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+#include "zconf.hash.c"
+
+#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
+
+#define PRINTD         0x0001
+#define DEBUG_PARSE    0x0002
+
+int cdebug = PRINTD;
+
+extern int zconflex(void);
+static void zconfprint(const char *err, ...);
+static void zconf_error(const char *err, ...);
+static void zconferror(const char *err);
+static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
+
+struct symbol *symbol_hash[257];
+
+static struct menu *current_menu, *current_entry;
+
+#define YYDEBUG 0
+#if YYDEBUG
+#define YYERROR_VERBOSE
+#endif
+
+
+/* Enabling traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table.  */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+
+typedef union YYSTYPE {
+       char *string;
+       struct file *file;
+       struct symbol *symbol;
+       struct expr *expr;
+       struct menu *menu;
+       struct kconf_id *id;
+} YYSTYPE;
+/* Line 196 of yacc.c.  */
+
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+/* Copy the second part of user declarations.  */
+
+
+/* Line 219 of yacc.c.  */
+
+
+#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
+# define YYSIZE_T __SIZE_TYPE__
+#endif
+#if ! defined (YYSIZE_T) && defined (size_t)
+# define YYSIZE_T size_t
+#endif
+#if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+#endif
+#if ! defined (YYSIZE_T)
+# define YYSIZE_T unsigned int
+#endif
+
+#ifndef YY_
+# if YYENABLE_NLS
+#  if ENABLE_NLS
+#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#  endif
+# endif
+# ifndef YY_
+#  define YY_(msgid) msgid
+# endif
+#endif
+
+#if ! defined (yyoverflow) || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# ifdef YYSTACK_USE_ALLOCA
+#  if YYSTACK_USE_ALLOCA
+#   ifdef __GNUC__
+#    define YYSTACK_ALLOC __builtin_alloca
+#   else
+#    define YYSTACK_ALLOC alloca
+#    if defined (__STDC__) || defined (__cplusplus)
+#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#     define YYINCLUDED_STDLIB_H
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's `empty if-body' warning. */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+    /* The OS might guarantee only one guard page at the bottom of the stack,
+       and a page size can be as small as 4096 bytes.  So we cannot safely
+       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
+       to allow for a few compiler-allocated temporary stack slots.  */
+#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
+#  endif
+# else
+#  define YYSTACK_ALLOC YYMALLOC
+#  define YYSTACK_FREE YYFREE
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+#   define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1)
+#  endif
+#  ifdef __cplusplus
+extern "C" {
+#  endif
+#  ifndef YYMALLOC
+#   define YYMALLOC malloc
+#   if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \
+       && (defined (__STDC__) || defined (__cplusplus)))
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifndef YYFREE
+#   define YYFREE free
+#   if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \
+       && (defined (__STDC__) || defined (__cplusplus)))
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifdef __cplusplus
+}
+#  endif
+# endif
+#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
+
+
+#if (! defined (yyoverflow) \
+     && (! defined (__cplusplus) \
+        || (defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  short int yyss;
+  YYSTYPE yyvs;
+  };
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (short int) + sizeof (YYSTYPE))                    \
+      + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined (__GNUC__) && 1 < __GNUC__
+#   define YYCOPY(To, From, Count) \
+      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+#  else
+#   define YYCOPY(To, From, Count)             \
+      do                                       \
+       {                                       \
+         YYSIZE_T yyi;                         \
+         for (yyi = 0; yyi < (Count); yyi++)   \
+           (To)[yyi] = (From)[yyi];            \
+       }                                       \
+      while (0)
+#  endif
+# endif
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   elements in the stack, and YYPTR gives the new location of the
+   stack.  Advance YYPTR to a properly aligned location for the next
+   stack.  */
+# define YYSTACK_RELOCATE(Stack)                                       \
+    do                                                                 \
+      {                                                                        \
+       YYSIZE_T yynewbytes;                                            \
+       YYCOPY (&yyptr->Stack, Stack, yysize);                          \
+       Stack = &yyptr->Stack;                                          \
+       yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+       yyptr += yynewbytes / sizeof (*yyptr);                          \
+      }                                                                        \
+    while (0)
+
+#endif
+
+#if defined (__STDC__) || defined (__cplusplus)
+   typedef signed char yysigned_char;
+#else
+   typedef short int yysigned_char;
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL  3
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   275
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS  36
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS  45
+/* YYNRULES -- Number of rules. */
+#define YYNRULES  110
+/* YYNRULES -- Number of states. */
+#define YYNSTATES  183
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   290
+
+#define YYTRANSLATE(YYX)                                               \
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+static const unsigned char yytranslate[] =
+{
+       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
+       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
+      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
+      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
+      35
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+   YYRHS.  */
+static const unsigned short int yyprhs[] =
+{
+       0,     0,     3,     5,     6,     9,    12,    15,    20,    23,
+      28,    33,    37,    39,    41,    43,    45,    47,    49,    51,
+      53,    55,    57,    59,    61,    63,    67,    70,    74,    77,
+      81,    84,    85,    88,    91,    94,    97,   100,   103,   107,
+     112,   117,   122,   128,   132,   133,   137,   138,   141,   144,
+     147,   149,   153,   154,   157,   160,   163,   166,   169,   174,
+     178,   181,   186,   187,   190,   194,   196,   200,   201,   204,
+     207,   210,   214,   217,   219,   223,   224,   227,   230,   233,
+     237,   241,   244,   247,   250,   251,   254,   257,   260,   265,
+     269,   273,   274,   277,   279,   281,   284,   287,   290,   292,
+     295,   296,   299,   301,   305,   309,   313,   316,   320,   324,
+     326
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yysigned_char yyrhs[] =
+{
+      37,     0,    -1,    38,    -1,    -1,    38,    40,    -1,    38,
+      54,    -1,    38,    65,    -1,    38,     3,    75,    77,    -1,
+      38,    76,    -1,    38,    26,     1,    31,    -1,    38,    39,
+       1,    31,    -1,    38,     1,    31,    -1,    16,    -1,    19,
+      -1,    20,    -1,    22,    -1,    18,    -1,    23,    -1,    21,
+      -1,    31,    -1,    60,    -1,    69,    -1,    43,    -1,    45,
+      -1,    67,    -1,    26,     1,    31,    -1,     1,    31,    -1,
+      10,    26,    31,    -1,    42,    46,    -1,    11,    26,    31,
+      -1,    44,    46,    -1,    -1,    46,    47,    -1,    46,    48,
+      -1,    46,    73,    -1,    46,    71,    -1,    46,    41,    -1,
+      46,    31,    -1,    20,    74,    31,    -1,    19,    75,    78,
+      31,    -1,    21,    79,    78,    31,    -1,    22,    26,    78,
+      31,    -1,    23,    80,    80,    78,    31,    -1,    24,    49,
+      31,    -1,    -1,    49,    26,    50,    -1,    -1,    34,    75,
+      -1,     7,    31,    -1,    51,    55,    -1,    76,    -1,    52,
+      57,    53,    -1,    -1,    55,    56,    -1,    55,    73,    -1,
+      55,    71,    -1,    55,    31,    -1,    55,    41,    -1,    19,
+      75,    78,    31,    -1,    20,    74,    31,    -1,    18,    31,
+      -1,    21,    26,    78,    31,    -1,    -1,    57,    40,    -1,
+      14,    79,    77,    -1,    76,    -1,    58,    61,    59,    -1,
+      -1,    61,    40,    -1,    61,    65,    -1,    61,    54,    -1,
+       4,    75,    31,    -1,    62,    72,    -1,    76,    -1,    63,
+      66,    64,    -1,    -1,    66,    40,    -1,    66,    65,    -1,
+      66,    54,    -1,     6,    75,    31,    -1,     9,    75,    31,
+      -1,    68,    72,    -1,    12,    31,    -1,    70,    13,    -1,
+      -1,    72,    73,    -1,    72,    31,    -1,    72,    41,    -1,
+      16,    25,    79,    31,    -1,    16,    79,    31,    -1,    17,
+      79,    31,    -1,    -1,    75,    78,    -1,    26,    -1,    27,
+      -1,     5,    31,    -1,     8,    31,    -1,    15,    31,    -1,
+      31,    -1,    77,    31,    -1,    -1,    14,    79,    -1,    80,
+      -1,    80,    34,    80,    -1,    80,    28,    80,    -1,    30,
+      79,    29,    -1,    35,    79,    -1,    79,    32,    79,    -1,
+      79,    33,    79,    -1,    26,    -1,    27,    -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const unsigned short int yyrline[] =
+{
+       0,   105,   105,   107,   109,   110,   111,   112,   113,   114,
+     115,   119,   123,   123,   123,   123,   123,   123,   123,   127,
+     128,   129,   130,   131,   132,   136,   137,   143,   151,   157,
+     165,   175,   177,   178,   179,   180,   181,   182,   185,   193,
+     199,   209,   215,   221,   224,   226,   237,   238,   243,   252,
+     257,   265,   268,   270,   271,   272,   273,   274,   277,   283,
+     294,   300,   310,   312,   317,   325,   333,   336,   338,   339,
+     340,   345,   352,   357,   365,   368,   370,   371,   372,   375,
+     383,   390,   397,   403,   410,   412,   413,   414,   417,   422,
+     427,   435,   437,   442,   443,   446,   447,   448,   452,   453,
+     456,   457,   460,   461,   462,   463,   464,   465,   466,   469,
+     470
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+  "$end", "error", "$undefined", "T_MAINMENU", "T_MENU", "T_ENDMENU",
+  "T_SOURCE", "T_CHOICE", "T_ENDCHOICE", "T_COMMENT", "T_CONFIG",
+  "T_MENUCONFIG", "T_HELP", "T_HELPTEXT", "T_IF", "T_ENDIF", "T_DEPENDS",
+  "T_REQUIRES", "T_OPTIONAL", "T_PROMPT", "T_TYPE", "T_DEFAULT",
+  "T_SELECT", "T_RANGE", "T_OPTION", "T_ON", "T_WORD", "T_WORD_QUOTE",
+  "T_UNEQUAL", "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND",
+  "T_EQUAL", "T_NOT", "$accept", "input", "stmt_list", "option_name",
+  "common_stmt", "option_error", "config_entry_start", "config_stmt",
+  "menuconfig_entry_start", "menuconfig_stmt", "config_option_list",
+  "config_option", "symbol_option", "symbol_option_list",
+  "symbol_option_arg", "choice", "choice_entry", "choice_end",
+  "choice_stmt", "choice_option_list", "choice_option", "choice_block",
+  "if_entry", "if_end", "if_stmt", "if_block", "menu", "menu_entry",
+  "menu_end", "menu_stmt", "menu_block", "source_stmt", "comment",
+  "comment_stmt", "help_start", "help", "depends_list", "depends",
+  "prompt_stmt_opt", "prompt", "end", "nl", "if_expr", "expr", "symbol", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+   token YYLEX-NUM.  */
+static const unsigned short int yytoknum[] =
+{
+       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
+     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
+     275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
+     285,   286,   287,   288,   289,   290
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const unsigned char yyr1[] =
+{
+       0,    36,    37,    38,    38,    38,    38,    38,    38,    38,
+      38,    38,    39,    39,    39,    39,    39,    39,    39,    40,
+      40,    40,    40,    40,    40,    41,    41,    42,    43,    44,
+      45,    46,    46,    46,    46,    46,    46,    46,    47,    47,
+      47,    47,    47,    48,    49,    49,    50,    50,    51,    52,
+      53,    54,    55,    55,    55,    55,    55,    55,    56,    56,
+      56,    56,    57,    57,    58,    59,    60,    61,    61,    61,
+      61,    62,    63,    64,    65,    66,    66,    66,    66,    67,
+      68,    69,    70,    71,    72,    72,    72,    72,    73,    73,
+      73,    74,    74,    75,    75,    76,    76,    76,    77,    77,
+      78,    78,    79,    79,    79,    79,    79,    79,    79,    80,
+      80
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const unsigned char yyr2[] =
+{
+       0,     2,     1,     0,     2,     2,     2,     4,     2,     4,
+       4,     3,     1,     1,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     1,     3,     2,     3,     2,     3,
+       2,     0,     2,     2,     2,     2,     2,     2,     3,     4,
+       4,     4,     5,     3,     0,     3,     0,     2,     2,     2,
+       1,     3,     0,     2,     2,     2,     2,     2,     4,     3,
+       2,     4,     0,     2,     3,     1,     3,     0,     2,     2,
+       2,     3,     2,     1,     3,     0,     2,     2,     2,     3,
+       3,     2,     2,     2,     0,     2,     2,     2,     4,     3,
+       3,     0,     2,     1,     1,     2,     2,     2,     1,     2,
+       0,     2,     1,     3,     3,     3,     2,     3,     3,     1,
+       1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+   means the default is an error.  */
+static const unsigned char yydefact[] =
+{
+       3,     0,     0,     1,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,    12,    16,    13,    14,
+      18,    15,    17,     0,    19,     0,     4,    31,    22,    31,
+      23,    52,    62,     5,    67,    20,    84,    75,     6,    24,
+      84,    21,     8,    11,    93,    94,     0,     0,    95,     0,
+      48,    96,     0,     0,     0,   109,   110,     0,     0,     0,
+     102,    97,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,    98,     7,    71,    79,    80,    27,    29,     0,
+     106,     0,     0,    64,     0,     0,     9,    10,     0,     0,
+       0,     0,     0,    91,     0,     0,     0,    44,     0,    37,
+      36,    32,    33,     0,    35,    34,     0,     0,    91,     0,
+      56,    57,    53,    55,    54,    63,    51,    50,    68,    70,
+      66,    69,    65,    86,    87,    85,    76,    78,    74,    77,
+      73,    99,   105,   107,   108,   104,   103,    26,    82,     0,
+       0,     0,   100,     0,   100,   100,   100,     0,     0,     0,
+      83,    60,   100,     0,   100,     0,    89,    90,     0,     0,
+      38,    92,     0,     0,   100,    46,    43,    25,     0,    59,
+       0,    88,   101,    39,    40,    41,     0,     0,    45,    58,
+      61,    42,    47
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const short int yydefgoto[] =
+{
+      -1,     1,     2,    25,    26,   100,    27,    28,    29,    30,
+      64,   101,   102,   148,   178,    31,    32,   116,    33,    66,
+     112,    67,    34,   120,    35,    68,    36,    37,   128,    38,
+      70,    39,    40,    41,   103,   104,    69,   105,   143,   144,
+      42,    73,   159,    59,    60
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -135
+static const short int yypact[] =
+{
+    -135,     2,   170,  -135,   -14,    56,    56,    -8,    56,    24,
+      67,    56,     7,    14,    62,    97,  -135,  -135,  -135,  -135,
+    -135,  -135,  -135,   156,  -135,   166,  -135,  -135,  -135,  -135,
+    -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,
+    -135,  -135,  -135,  -135,  -135,  -135,   138,   151,  -135,   152,
+    -135,  -135,   163,   167,   176,  -135,  -135,    62,    62,   185,
+     -19,  -135,   188,   190,    42,   103,   194,    85,    70,   222,
+      70,   132,  -135,   191,  -135,  -135,  -135,  -135,  -135,   127,
+    -135,    62,    62,   191,   104,   104,  -135,  -135,   193,   203,
+       9,    62,    56,    56,    62,   161,   104,  -135,   196,  -135,
+    -135,  -135,  -135,   233,  -135,  -135,   204,    56,    56,   221,
+    -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,
+    -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,
+    -135,  -135,  -135,   219,  -135,  -135,  -135,  -135,  -135,    62,
+     209,   212,   240,   224,   240,    -1,   240,   104,    41,   225,
+    -135,  -135,   240,   226,   240,   218,  -135,  -135,    62,   227,
+    -135,  -135,   228,   229,   240,   230,  -135,  -135,   231,  -135,
+     232,  -135,   112,  -135,  -135,  -135,   234,    56,  -135,  -135,
+    -135,  -135,  -135
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const short int yypgoto[] =
+{
+    -135,  -135,  -135,  -135,    94,   -45,  -135,  -135,  -135,  -135,
+     237,  -135,  -135,  -135,  -135,  -135,  -135,  -135,   -54,  -135,
+    -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,  -135,     1,
+    -135,  -135,  -135,  -135,  -135,   195,   235,   -44,   159,    -5,
+      98,   210,  -134,   -53,   -77
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
+   positive, shift that token.  If negative, reduce the rule which
+   number is the opposite.  If zero, do what YYDEFACT says.
+   If YYTABLE_NINF, syntax error.  */
+#define YYTABLE_NINF -82
+static const short int yytable[] =
+{
+      46,    47,     3,    49,    79,    80,    52,   135,   136,    84,
+     161,   162,   163,   158,   119,    85,   127,    43,   168,   147,
+     170,   111,   114,    48,   124,   125,   124,   125,   133,   134,
+     176,    81,    82,    53,   139,    55,    56,   140,   141,    57,
+      54,   145,   -28,    88,    58,   -28,   -28,   -28,   -28,   -28,
+     -28,   -28,   -28,   -28,    89,    50,   -28,   -28,    90,    91,
+     -28,    92,    93,    94,    95,    96,    97,   165,    98,   121,
+     164,   129,   166,    99,     6,     7,     8,     9,    10,    11,
+      12,    13,    44,    45,    14,    15,   155,   142,    55,    56,
+       7,     8,    57,    10,    11,    12,    13,    58,    51,    14,
+      15,    24,   152,   -30,    88,   172,   -30,   -30,   -30,   -30,
+     -30,   -30,   -30,   -30,   -30,    89,    24,   -30,   -30,    90,
+      91,   -30,    92,    93,    94,    95,    96,    97,    61,    98,
+      55,    56,   -81,    88,    99,   -81,   -81,   -81,   -81,   -81,
+     -81,   -81,   -81,   -81,    81,    82,   -81,   -81,    90,    91,
+     -81,   -81,   -81,   -81,   -81,   -81,   132,    62,    98,    81,
+      82,   115,   118,   123,   126,   117,   122,    63,   130,    72,
+      -2,     4,   182,     5,     6,     7,     8,     9,    10,    11,
+      12,    13,    74,    75,    14,    15,    16,   146,    17,    18,
+      19,    20,    21,    22,    76,    88,    23,   149,    77,   -49,
+     -49,    24,   -49,   -49,   -49,   -49,    89,    78,   -49,   -49,
+      90,    91,   106,   107,   108,   109,    72,    81,    82,    86,
+      98,    87,   131,    88,   137,   110,   -72,   -72,   -72,   -72,
+     -72,   -72,   -72,   -72,   138,   151,   -72,   -72,    90,    91,
+     156,    81,    82,   157,    81,    82,   150,   154,    98,   171,
+      81,    82,    82,   123,   158,   160,   167,   169,   173,   174,
+     175,   113,   179,   180,   177,   181,    65,   153,     0,    83,
+       0,     0,     0,     0,     0,    71
+};
+
+static const short int yycheck[] =
+{
+       5,     6,     0,     8,    57,    58,    11,    84,    85,    28,
+     144,   145,   146,    14,    68,    34,    70,    31,   152,    96,
+     154,    66,    66,    31,    69,    69,    71,    71,    81,    82,
+     164,    32,    33,    26,    25,    26,    27,    90,    91,    30,
+      26,    94,     0,     1,    35,     3,     4,     5,     6,     7,
+       8,     9,    10,    11,    12,    31,    14,    15,    16,    17,
+      18,    19,    20,    21,    22,    23,    24,    26,    26,    68,
+     147,    70,    31,    31,     4,     5,     6,     7,     8,     9,
+      10,    11,    26,    27,    14,    15,   139,    92,    26,    27,
+       5,     6,    30,     8,     9,    10,    11,    35,    31,    14,
+      15,    31,   107,     0,     1,   158,     3,     4,     5,     6,
+       7,     8,     9,    10,    11,    12,    31,    14,    15,    16,
+      17,    18,    19,    20,    21,    22,    23,    24,    31,    26,
+      26,    27,     0,     1,    31,     3,     4,     5,     6,     7,
+       8,     9,    10,    11,    32,    33,    14,    15,    16,    17,
+      18,    19,    20,    21,    22,    23,    29,     1,    26,    32,
+      33,    67,    68,    31,    70,    67,    68,     1,    70,    31,
+       0,     1,   177,     3,     4,     5,     6,     7,     8,     9,
+      10,    11,    31,    31,    14,    15,    16,    26,    18,    19,
+      20,    21,    22,    23,    31,     1,    26,     1,    31,     5,
+       6,    31,     8,     9,    10,    11,    12,    31,    14,    15,
+      16,    17,    18,    19,    20,    21,    31,    32,    33,    31,
+      26,    31,    31,     1,    31,    31,     4,     5,     6,     7,
+       8,     9,    10,    11,    31,    31,    14,    15,    16,    17,
+      31,    32,    33,    31,    32,    33,    13,    26,    26,    31,
+      32,    33,    33,    31,    14,    31,    31,    31,    31,    31,
+      31,    66,    31,    31,    34,    31,    29,   108,    -1,    59,
+      -1,    -1,    -1,    -1,    -1,    40
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const unsigned char yystos[] =
+{
+       0,    37,    38,     0,     1,     3,     4,     5,     6,     7,
+       8,     9,    10,    11,    14,    15,    16,    18,    19,    20,
+      21,    22,    23,    26,    31,    39,    40,    42,    43,    44,
+      45,    51,    52,    54,    58,    60,    62,    63,    65,    67,
+      68,    69,    76,    31,    26,    27,    75,    75,    31,    75,
+      31,    31,    75,    26,    26,    26,    27,    30,    35,    79,
+      80,    31,     1,     1,    46,    46,    55,    57,    61,    72,
+      66,    72,    31,    77,    31,    31,    31,    31,    31,    79,
+      79,    32,    33,    77,    28,    34,    31,    31,     1,    12,
+      16,    17,    19,    20,    21,    22,    23,    24,    26,    31,
+      41,    47,    48,    70,    71,    73,    18,    19,    20,    21,
+      31,    41,    56,    71,    73,    40,    53,    76,    40,    54,
+      59,    65,    76,    31,    41,    73,    40,    54,    64,    65,
+      76,    31,    29,    79,    79,    80,    80,    31,    31,    25,
+      79,    79,    75,    74,    75,    79,    26,    80,    49,     1,
+      13,    31,    75,    74,    26,    79,    31,    31,    14,    78,
+      31,    78,    78,    78,    80,    26,    31,    31,    78,    31,
+      78,    31,    79,    31,    31,    31,    78,    34,    50,    31,
+      31,    31,    75
+};
+
+#define yyerrok                (yyerrstatus = 0)
+#define yyclearin      (yychar = YYEMPTY)
+#define YYEMPTY                (-2)
+#define YYEOF          0
+
+#define YYACCEPT       goto yyacceptlab
+#define YYABORT                goto yyabortlab
+#define YYERROR                goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror.  This remains here temporarily
+   to ease the transition to the new meaning of YYERROR, for GCC.
+   Once GCC version 2 has supplanted version 1, this can go.  */
+
+#define YYFAIL         goto yyerrlab
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)                                 \
+do                                                             \
+  if (yychar == YYEMPTY && yylen == 1)                         \
+    {                                                          \
+      yychar = (Token);                                                \
+      yylval = (Value);                                                \
+      yytoken = YYTRANSLATE (yychar);                          \
+      YYPOPSTACK;                                              \
+      goto yybackup;                                           \
+    }                                                          \
+  else                                                         \
+    {                                                          \
+      yyerror (YY_("syntax error: cannot back up")); \
+      YYERROR;                                                 \
+    }                                                          \
+while (0)
+
+
+#define YYTERROR       1
+#define YYERRCODE      256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)                               \
+    do                                                                 \
+      if (N)                                                           \
+       {                                                               \
+         (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
+         (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
+         (Current).last_line    = YYRHSLOC (Rhs, N).last_line;         \
+         (Current).last_column  = YYRHSLOC (Rhs, N).last_column;       \
+       }                                                               \
+      else                                                             \
+       {                                                               \
+         (Current).first_line   = (Current).last_line   =              \
+           YYRHSLOC (Rhs, 0).last_line;                                \
+         (Current).first_column = (Current).last_column =              \
+           YYRHSLOC (Rhs, 0).last_column;                              \
+       }                                                               \
+    while (0)
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+   This macro was not mandated originally: define only if we know
+   we won't break user code: when these are the locations we know.  */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+#  define YY_LOCATION_PRINT(File, Loc)                 \
+     fprintf (File, "%d.%d-%d.%d",                     \
+              (Loc).first_line, (Loc).first_column,    \
+              (Loc).last_line,  (Loc).last_column)
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments.  */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (YYLEX_PARAM)
+#else
+# define YYLEX yylex ()
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)                       \
+do {                                           \
+  if (yydebug)                                 \
+    YYFPRINTF Args;                            \
+} while (0)
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)         \
+do {                                                           \
+  if (yydebug)                                                 \
+    {                                                          \
+      YYFPRINTF (stderr, "%s ", Title);                                \
+      yysymprint (stderr,                                      \
+                  Type, Value);        \
+      YYFPRINTF (stderr, "\n");                                        \
+    }                                                          \
+} while (0)
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included).                                                   |
+`------------------------------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yy_stack_print (short int *bottom, short int *top)
+#else
+static void
+yy_stack_print (bottom, top)
+    short int *bottom;
+    short int *top;
+#endif
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (/* Nothing. */; bottom <= top; ++bottom)
+    YYFPRINTF (stderr, " %d", *bottom);
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)                           \
+do {                                                           \
+  if (yydebug)                                                 \
+    yy_stack_print ((Bottom), (Top));                          \
+} while (0)
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yy_reduce_print (int yyrule)
+#else
+static void
+yy_reduce_print (yyrule)
+    int yyrule;
+#endif
+{
+  int yyi;
+  unsigned long int yylno = yyrline[yyrule];
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ",
+             yyrule - 1, yylno);
+  /* Print the symbols being reduced, and their result.  */
+  for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
+    YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
+  YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]);
+}
+
+# define YY_REDUCE_PRINT(Rule)         \
+do {                                   \
+  if (yydebug)                         \
+    yy_reduce_print (Rule);            \
+} while (0)
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef        YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+\f
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined (__GLIBC__) && defined (_STRING_H)
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+static YYSIZE_T
+#   if defined (__STDC__) || defined (__cplusplus)
+yystrlen (const char *yystr)
+#   else
+yystrlen (yystr)
+     const char *yystr;
+#   endif
+{
+  const char *yys = yystr;
+
+  while (*yys++ != '\0')
+    continue;
+
+  return yys - yystr - 1;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+static char *
+#   if defined (__STDC__) || defined (__cplusplus)
+yystpcpy (char *yydest, const char *yysrc)
+#   else
+yystpcpy (yydest, yysrc)
+     char *yydest;
+     const char *yysrc;
+#   endif
+{
+  char *yyd = yydest;
+  const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+   quotes and backslashes, so that it's suitable for yyerror.  The
+   heuristic is that double-quoting is unnecessary unless the string
+   contains an apostrophe, a comma, or backslash (other than
+   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
+   null, do not copy; instead, return the length of what the result
+   would have been.  */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+  if (*yystr == '"')
+    {
+      size_t yyn = 0;
+      char const *yyp = yystr;
+
+      for (;;)
+       switch (*++yyp)
+         {
+         case '\'':
+         case ',':
+           goto do_not_strip_quotes;
+
+         case '\\':
+           if (*++yyp != '\\')
+             goto do_not_strip_quotes;
+           /* Fall through.  */
+         default:
+           if (yyres)
+             yyres[yyn] = *yyp;
+           yyn++;
+           break;
+
+         case '"':
+           if (yyres)
+             yyres[yyn] = '\0';
+           return yyn;
+         }
+    do_not_strip_quotes: ;
+    }
+
+  if (! yyres)
+    return yystrlen (yystr);
+
+  return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+#endif /* YYERROR_VERBOSE */
+
+\f
+
+#if YYDEBUG
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yysymprint (yyoutput, yytype, yyvaluep)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE *yyvaluep;
+#endif
+{
+  /* Pacify ``unused variable'' warnings.  */
+  (void) yyvaluep;
+
+  if (yytype < YYNTOKENS)
+    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+  else
+    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+
+# ifdef YYPRINT
+  if (yytype < YYNTOKENS)
+    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# endif
+  switch (yytype)
+    {
+      default:
+        break;
+    }
+  YYFPRINTF (yyoutput, ")");
+}
+
+#endif /* ! YYDEBUG */
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep)
+    const char *yymsg;
+    int yytype;
+    YYSTYPE *yyvaluep;
+#endif
+{
+  /* Pacify ``unused variable'' warnings.  */
+  (void) yyvaluep;
+
+  if (!yymsg)
+    yymsg = "Deleting";
+  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+  switch (yytype)
+    {
+      case 52: /* "choice_entry" */
+
+        {
+       fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+               (yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+       if (current_menu == (yyvaluep->menu))
+               menu_end_menu();
+};
+
+        break;
+      case 58: /* "if_entry" */
+
+        {
+       fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+               (yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+       if (current_menu == (yyvaluep->menu))
+               menu_end_menu();
+};
+
+        break;
+      case 63: /* "menu_entry" */
+
+        {
+       fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+               (yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+       if (current_menu == (yyvaluep->menu))
+               menu_end_menu();
+};
+
+        break;
+
+      default:
+        break;
+    }
+}
+\f
+
+/* Prevent warnings from -Wmissing-prototypes.  */
+
+#ifdef YYPARSE_PARAM
+# if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void *YYPARSE_PARAM);
+# else
+int yyparse ();
+# endif
+#else /* ! YYPARSE_PARAM */
+#if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+/* The look-ahead symbol.  */
+int yychar;
+
+/* The semantic value of the look-ahead symbol.  */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+int yynerrs;
+
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+# if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void *YYPARSE_PARAM)
+# else
+int yyparse (YYPARSE_PARAM)
+  void *YYPARSE_PARAM;
+# endif
+#else /* ! YYPARSE_PARAM */
+#if defined (__STDC__) || defined (__cplusplus)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+    ;
+#endif
+#endif
+{
+  
+  int yystate;
+  int yyn;
+  int yyresult;
+  /* Number of tokens to shift before error messages enabled.  */
+  int yyerrstatus;
+  /* Look-ahead token as an internal (translated) token number.  */
+  int yytoken = 0;
+
+  /* Three stacks and their tools:
+     `yyss': related to states,
+     `yyvs': related to semantic values,
+     `yyls': related to locations.
+
+     Refer to the stacks thru separate pointers, to allow yyoverflow
+     to reallocate them elsewhere.  */
+
+  /* The state stack.  */
+  short int yyssa[YYINITDEPTH];
+  short int *yyss = yyssa;
+  short int *yyssp;
+
+  /* The semantic value stack.  */
+  YYSTYPE yyvsa[YYINITDEPTH];
+  YYSTYPE *yyvs = yyvsa;
+  YYSTYPE *yyvsp;
+
+
+
+#define YYPOPSTACK   (yyvsp--, yyssp--)
+
+  YYSIZE_T yystacksize = YYINITDEPTH;
+
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+
+
+  /* When reducing, the number of symbols on the RHS of the reduced
+     rule.  */
+  int yylen;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY;            /* Cause a token to be read.  */
+
+  /* Initialize stack pointers.
+     Waste one element of value and location stack
+     so that they stay on the same level as the state stack.
+     The wasted elements are never initialized.  */
+
+  yyssp = yyss;
+  yyvsp = yyvs;
+
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+ yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed. so pushing a state here evens the stacks.
+     */
+  yyssp++;
+
+ yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp)
+    {
+      /* Get the current used size of the three stacks, in elements.  */
+      YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+      {
+       /* Give user a chance to reallocate the stack. Use copies of
+          these so that the &'s don't force the real ones into
+          memory.  */
+       YYSTYPE *yyvs1 = yyvs;
+       short int *yyss1 = yyss;
+
+
+       /* Each stack pointer address is followed by the size of the
+          data in use in that stack, in bytes.  This used to be a
+          conditional around just the two extra args, but that might
+          be undefined if yyoverflow is a macro.  */
+       yyoverflow (YY_("memory exhausted"),
+                   &yyss1, yysize * sizeof (*yyssp),
+                   &yyvs1, yysize * sizeof (*yyvsp),
+
+                   &yystacksize);
+
+       yyss = yyss1;
+       yyvs = yyvs1;
+      }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+      goto yyexhaustedlab;
+# else
+      /* Extend the stack our own way.  */
+      if (YYMAXDEPTH <= yystacksize)
+       goto yyexhaustedlab;
+      yystacksize *= 2;
+      if (YYMAXDEPTH < yystacksize)
+       yystacksize = YYMAXDEPTH;
+
+      {
+       short int *yyss1 = yyss;
+       union yyalloc *yyptr =
+         (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+       if (! yyptr)
+         goto yyexhaustedlab;
+       YYSTACK_RELOCATE (yyss);
+       YYSTACK_RELOCATE (yyvs);
+
+#  undef YYSTACK_RELOCATE
+       if (yyss1 != yyssa)
+         YYSTACK_FREE (yyss1);
+      }
+# endif
+#endif /* no yyoverflow */
+
+      yyssp = yyss + yysize - 1;
+      yyvsp = yyvs + yysize - 1;
+
+
+      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+                 (unsigned long int) yystacksize));
+
+      if (yyss + yystacksize - 1 <= yyssp)
+       YYABORT;
+    }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+/* Do appropriate processing given the current state.  */
+/* Read a look-ahead token if we need one and don't already have one.  */
+/* yyresume: */
+
+  /* First try to decide what to do without reference to look-ahead token.  */
+
+  yyn = yypact[yystate];
+  if (yyn == YYPACT_NINF)
+    goto yydefault;
+
+  /* Not known => get a look-ahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  if (yychar == YYEMPTY)
+    {
+      YYDPRINTF ((stderr, "Reading a token: "));
+      yychar = YYLEX;
+    }
+
+  if (yychar <= YYEOF)
+    {
+      yychar = yytoken = YYEOF;
+      YYDPRINTF ((stderr, "Now at end of input.\n"));
+    }
+  else
+    {
+      yytoken = YYTRANSLATE (yychar);
+      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+    }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0)
+    {
+      if (yyn == 0 || yyn == YYTABLE_NINF)
+       goto yyerrlab;
+      yyn = -yyn;
+      goto yyreduce;
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  /* Shift the look-ahead token.  */
+  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+  /* Discard the token being shifted unless it is eof.  */
+  if (yychar != YYEOF)
+    yychar = YYEMPTY;
+
+  *++yyvsp = yylval;
+
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     `$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1-yylen];
+
+
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn)
+    {
+        case 8:
+
+    { zconf_error("unexpected end statement"); ;}
+    break;
+
+  case 9:
+
+    { zconf_error("unknown statement \"%s\"", (yyvsp[-2].string)); ;}
+    break;
+
+  case 10:
+
+    {
+       zconf_error("unexpected option \"%s\"", kconf_id_strings + (yyvsp[-2].id)->name);
+;}
+    break;
+
+  case 11:
+
+    { zconf_error("invalid statement"); ;}
+    break;
+
+  case 25:
+
+    { zconf_error("unknown option \"%s\"", (yyvsp[-2].string)); ;}
+    break;
+
+  case 26:
+
+    { zconf_error("invalid option"); ;}
+    break;
+
+  case 27:
+
+    {
+       struct symbol *sym = sym_lookup((yyvsp[-1].string), 0);
+       sym->flags |= SYMBOL_OPTIONAL;
+       menu_add_entry(sym);
+       printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+;}
+    break;
+
+  case 28:
+
+    {
+       menu_end_entry();
+       printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 29:
+
+    {
+       struct symbol *sym = sym_lookup((yyvsp[-1].string), 0);
+       sym->flags |= SYMBOL_OPTIONAL;
+       menu_add_entry(sym);
+       printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+;}
+    break;
+
+  case 30:
+
+    {
+       if (current_entry->prompt)
+               current_entry->prompt->type = P_MENU;
+       else
+               zconfprint("warning: menuconfig statement without prompt");
+       menu_end_entry();
+       printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 38:
+
+    {
+       menu_set_type((yyvsp[-2].id)->stype);
+       printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+               zconf_curname(), zconf_lineno(),
+               (yyvsp[-2].id)->stype);
+;}
+    break;
+
+  case 39:
+
+    {
+       menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 40:
+
+    {
+       menu_add_expr(P_DEFAULT, (yyvsp[-2].expr), (yyvsp[-1].expr));
+       if ((yyvsp[-3].id)->stype != S_UNKNOWN)
+               menu_set_type((yyvsp[-3].id)->stype);
+       printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
+               zconf_curname(), zconf_lineno(),
+               (yyvsp[-3].id)->stype);
+;}
+    break;
+
+  case 41:
+
+    {
+       menu_add_symbol(P_SELECT, sym_lookup((yyvsp[-2].string), 0), (yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 42:
+
+    {
+       menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,(yyvsp[-3].symbol), (yyvsp[-2].symbol)), (yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 45:
+
+    {
+       struct kconf_id *id = kconf_id_lookup((yyvsp[-1].string), strlen((yyvsp[-1].string)));
+       if (id && id->flags & TF_OPTION)
+               menu_add_option(id->token, (yyvsp[0].string));
+       else
+               zconfprint("warning: ignoring unknown option %s", (yyvsp[-1].string));
+       free((yyvsp[-1].string));
+;}
+    break;
+
+  case 46:
+
+    { (yyval.string) = NULL; ;}
+    break;
+
+  case 47:
+
+    { (yyval.string) = (yyvsp[0].string); ;}
+    break;
+
+  case 48:
+
+    {
+       struct symbol *sym = sym_lookup(NULL, 0);
+       sym->flags |= SYMBOL_CHOICE;
+       menu_add_entry(sym);
+       menu_add_expr(P_CHOICE, NULL, NULL);
+       printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 49:
+
+    {
+       (yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 50:
+
+    {
+       if (zconf_endtoken((yyvsp[0].id), T_CHOICE, T_ENDCHOICE)) {
+               menu_end_menu();
+               printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
+       }
+;}
+    break;
+
+  case 58:
+
+    {
+       menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 59:
+
+    {
+       if ((yyvsp[-2].id)->stype == S_BOOLEAN || (yyvsp[-2].id)->stype == S_TRISTATE) {
+               menu_set_type((yyvsp[-2].id)->stype);
+               printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+                       zconf_curname(), zconf_lineno(),
+                       (yyvsp[-2].id)->stype);
+       } else
+               YYERROR;
+;}
+    break;
+
+  case 60:
+
+    {
+       current_entry->sym->flags |= SYMBOL_OPTIONAL;
+       printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 61:
+
+    {
+       if ((yyvsp[-3].id)->stype == S_UNKNOWN) {
+               menu_add_symbol(P_DEFAULT, sym_lookup((yyvsp[-2].string), 0), (yyvsp[-1].expr));
+               printd(DEBUG_PARSE, "%s:%d:default\n",
+                       zconf_curname(), zconf_lineno());
+       } else
+               YYERROR;
+;}
+    break;
+
+  case 64:
+
+    {
+       printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
+       menu_add_entry(NULL);
+       menu_add_dep((yyvsp[-1].expr));
+       (yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 65:
+
+    {
+       if (zconf_endtoken((yyvsp[0].id), T_IF, T_ENDIF)) {
+               menu_end_menu();
+               printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
+       }
+;}
+    break;
+
+  case 71:
+
+    {
+       menu_add_entry(NULL);
+       menu_add_prompt(P_MENU, (yyvsp[-1].string), NULL);
+       printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 72:
+
+    {
+       (yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 73:
+
+    {
+       if (zconf_endtoken((yyvsp[0].id), T_MENU, T_ENDMENU)) {
+               menu_end_menu();
+               printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
+       }
+;}
+    break;
+
+  case 79:
+
+    {
+       printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+       zconf_nextfile((yyvsp[-1].string));
+;}
+    break;
+
+  case 80:
+
+    {
+       menu_add_entry(NULL);
+       menu_add_prompt(P_COMMENT, (yyvsp[-1].string), NULL);
+       printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 81:
+
+    {
+       menu_end_entry();
+;}
+    break;
+
+  case 82:
+
+    {
+       printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
+       zconf_starthelp();
+;}
+    break;
+
+  case 83:
+
+    {
+       current_entry->sym->help = (yyvsp[0].string);
+;}
+    break;
+
+  case 88:
+
+    {
+       menu_add_dep((yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 89:
+
+    {
+       menu_add_dep((yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 90:
+
+    {
+       menu_add_dep((yyvsp[-1].expr));
+       printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 92:
+
+    {
+       menu_add_prompt(P_PROMPT, (yyvsp[-1].string), (yyvsp[0].expr));
+;}
+    break;
+
+  case 95:
+
+    { (yyval.id) = (yyvsp[-1].id); ;}
+    break;
+
+  case 96:
+
+    { (yyval.id) = (yyvsp[-1].id); ;}
+    break;
+
+  case 97:
+
+    { (yyval.id) = (yyvsp[-1].id); ;}
+    break;
+
+  case 100:
+
+    { (yyval.expr) = NULL; ;}
+    break;
+
+  case 101:
+
+    { (yyval.expr) = (yyvsp[0].expr); ;}
+    break;
+
+  case 102:
+
+    { (yyval.expr) = expr_alloc_symbol((yyvsp[0].symbol)); ;}
+    break;
+
+  case 103:
+
+    { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); ;}
+    break;
+
+  case 104:
+
+    { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); ;}
+    break;
+
+  case 105:
+
+    { (yyval.expr) = (yyvsp[-1].expr); ;}
+    break;
+
+  case 106:
+
+    { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[0].expr)); ;}
+    break;
+
+  case 107:
+
+    { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[-2].expr), (yyvsp[0].expr)); ;}
+    break;
+
+  case 108:
+
+    { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[-2].expr), (yyvsp[0].expr)); ;}
+    break;
+
+  case 109:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[0].string), 0); free((yyvsp[0].string)); ;}
+    break;
+
+  case 110:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[0].string), 1); free((yyvsp[0].string)); ;}
+    break;
+
+
+      default: break;
+    }
+
+/* Line 1126 of yacc.c.  */
+
+\f
+  yyvsp -= yylen;
+  yyssp -= yylen;
+
+
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+
+
+  /* Now `shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus)
+    {
+      ++yynerrs;
+#if YYERROR_VERBOSE
+      yyn = yypact[yystate];
+
+      if (YYPACT_NINF < yyn && yyn < YYLAST)
+       {
+         int yytype = YYTRANSLATE (yychar);
+         YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+         YYSIZE_T yysize = yysize0;
+         YYSIZE_T yysize1;
+         int yysize_overflow = 0;
+         char *yymsg = 0;
+#        define YYERROR_VERBOSE_ARGS_MAXIMUM 5
+         char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+         int yyx;
+
+#if 0
+         /* This is so xgettext sees the translatable formats that are
+            constructed on the fly.  */
+         YY_("syntax error, unexpected %s");
+         YY_("syntax error, unexpected %s, expecting %s");
+         YY_("syntax error, unexpected %s, expecting %s or %s");
+         YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+         YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+#endif
+         char *yyfmt;
+         char const *yyf;
+         static char const yyunexpected[] = "syntax error, unexpected %s";
+         static char const yyexpecting[] = ", expecting %s";
+         static char const yyor[] = " or %s";
+         char yyformat[sizeof yyunexpected
+                       + sizeof yyexpecting - 1
+                       + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+                          * (sizeof yyor - 1))];
+         char const *yyprefix = yyexpecting;
+
+         /* Start YYX at -YYN if negative to avoid negative indexes in
+            YYCHECK.  */
+         int yyxbegin = yyn < 0 ? -yyn : 0;
+
+         /* Stay within bounds of both yycheck and yytname.  */
+         int yychecklim = YYLAST - yyn;
+         int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+         int yycount = 1;
+
+         yyarg[0] = yytname[yytype];
+         yyfmt = yystpcpy (yyformat, yyunexpected);
+
+         for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+           if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+             {
+               if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+                 {
+                   yycount = 1;
+                   yysize = yysize0;
+                   yyformat[sizeof yyunexpected - 1] = '\0';
+                   break;
+                 }
+               yyarg[yycount++] = yytname[yyx];
+               yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+               yysize_overflow |= yysize1 < yysize;
+               yysize = yysize1;
+               yyfmt = yystpcpy (yyfmt, yyprefix);
+               yyprefix = yyor;
+             }
+
+         yyf = YY_(yyformat);
+         yysize1 = yysize + yystrlen (yyf);
+         yysize_overflow |= yysize1 < yysize;
+         yysize = yysize1;
+
+         if (!yysize_overflow && yysize <= YYSTACK_ALLOC_MAXIMUM)
+           yymsg = (char *) YYSTACK_ALLOC (yysize);
+         if (yymsg)
+           {
+             /* Avoid sprintf, as that infringes on the user's name space.
+                Don't have undefined behavior even if the translation
+                produced a string with the wrong number of "%s"s.  */
+             char *yyp = yymsg;
+             int yyi = 0;
+             while ((*yyp = *yyf))
+               {
+                 if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+                   {
+                     yyp += yytnamerr (yyp, yyarg[yyi++]);
+                     yyf += 2;
+                   }
+                 else
+                   {
+                     yyp++;
+                     yyf++;
+                   }
+               }
+             yyerror (yymsg);
+             YYSTACK_FREE (yymsg);
+           }
+         else
+           {
+             yyerror (YY_("syntax error"));
+             goto yyexhaustedlab;
+           }
+       }
+      else
+#endif /* YYERROR_VERBOSE */
+       yyerror (YY_("syntax error"));
+    }
+
+
+
+  if (yyerrstatus == 3)
+    {
+      /* If just tried and failed to reuse look-ahead token after an
+        error, discard it.  */
+
+      if (yychar <= YYEOF)
+        {
+         /* Return failure if at end of input.  */
+         if (yychar == YYEOF)
+           YYABORT;
+        }
+      else
+       {
+         yydestruct ("Error: discarding", yytoken, &yylval);
+         yychar = YYEMPTY;
+       }
+    }
+
+  /* Else will try to reuse look-ahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR.  |
+`---------------------------------------------------*/
+yyerrorlab:
+
+  /* Pacify compilers like GCC when the user code never invokes
+     YYERROR and the label yyerrorlab therefore never appears in user
+     code.  */
+  if (0)
+     goto yyerrorlab;
+
+yyvsp -= yylen;
+  yyssp -= yylen;
+  yystate = *yyssp;
+  goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR.  |
+`-------------------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;     /* Each real token shifted decrements this.  */
+
+  for (;;)
+    {
+      yyn = yypact[yystate];
+      if (yyn != YYPACT_NINF)
+       {
+         yyn += YYTERROR;
+         if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+           {
+             yyn = yytable[yyn];
+             if (0 < yyn)
+               break;
+           }
+       }
+
+      /* Pop the current state because it cannot handle the error token.  */
+      if (yyssp == yyss)
+       YYABORT;
+
+
+      yydestruct ("Error: popping", yystos[yystate], yyvsp);
+      YYPOPSTACK;
+      yystate = *yyssp;
+      YY_STACK_PRINT (yyss, yyssp);
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  *++yyvsp = yylval;
+
+
+  /* Shift the error token. */
+  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here.  |
+`-------------------------------------------------*/
+yyexhaustedlab:
+  yyerror (YY_("memory exhausted"));
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+  if (yychar != YYEOF && yychar != YYEMPTY)
+     yydestruct ("Cleanup: discarding lookahead",
+                yytoken, &yylval);
+  while (yyssp != yyss)
+    {
+      yydestruct ("Cleanup: popping",
+                 yystos[*yyssp], yyvsp);
+      YYPOPSTACK;
+    }
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+  return yyresult;
+}
+
+
+
+
+
+void conf_parse(const char *name)
+{
+       struct symbol *sym;
+       int i;
+
+       zconf_initscan(name);
+
+       sym_init();
+       menu_init();
+       modules_sym = sym_lookup(NULL, 0);
+       modules_sym->type = S_BOOLEAN;
+       modules_sym->flags |= SYMBOL_AUTO;
+       rootmenu.prompt = menu_add_prompt(P_MENU, PROJECT_NAME" Configuration", NULL);
+
+#if YYDEBUG
+       if (getenv("ZCONF_DEBUG"))
+               zconfdebug = 1;
+#endif
+       zconfparse();
+       if (zconfnerrs)
+               exit(1);
+       if (!modules_sym->prop) {
+               struct property *prop;
+
+               prop = prop_alloc(P_DEFAULT, modules_sym);
+               prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));
+       }
+       menu_finalize(&rootmenu);
+       for_all_symbols(i, sym) {
+               sym_check_deps(sym);
+        }
+
+       sym_change_count = 1;
+}
+
+const char *zconf_tokenname(int token)
+{
+       switch (token) {
+       case T_MENU:            return "menu";
+       case T_ENDMENU:         return "endmenu";
+       case T_CHOICE:          return "choice";
+       case T_ENDCHOICE:       return "endchoice";
+       case T_IF:              return "if";
+       case T_ENDIF:           return "endif";
+       case T_DEPENDS:         return "depends";
+       }
+       return "<token>";
+}
+
+static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
+{
+       if (id->token != endtoken) {
+               zconf_error("unexpected '%s' within %s block",
+                       kconf_id_strings + id->name, zconf_tokenname(starttoken));
+               zconfnerrs++;
+               return false;
+       }
+       if (current_menu->file != current_file) {
+               zconf_error("'%s' in different file than '%s'",
+                       kconf_id_strings + id->name, zconf_tokenname(starttoken));
+               fprintf(stderr, "%s:%d: location of the '%s'\n",
+                       current_menu->file->name, current_menu->lineno,
+                       zconf_tokenname(starttoken));
+               zconfnerrs++;
+               return false;
+       }
+       return true;
+}
+
+static void zconfprint(const char *err, ...)
+{
+       va_list ap;
+
+       fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+       va_start(ap, err);
+       vfprintf(stderr, err, ap);
+       va_end(ap);
+       fprintf(stderr, "\n");
+}
+
+static void zconf_error(const char *err, ...)
+{
+       va_list ap;
+
+       zconfnerrs++;
+       fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+       va_start(ap, err);
+       vfprintf(stderr, err, ap);
+       va_end(ap);
+       fprintf(stderr, "\n");
+}
+
+static void zconferror(const char *err)
+{
+#if YYDEBUG
+       fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
+#endif
+}
+
+void print_quoted_string(FILE *out, const char *str)
+{
+       const char *p;
+       int len;
+
+       putc('"', out);
+       while ((p = strchr(str, '"'))) {
+               len = p - str;
+               if (len)
+                       fprintf(out, "%.*s", len, str);
+               fputs("\\\"", out);
+               str = p + 1;
+       }
+       fputs(str, out);
+       putc('"', out);
+}
+
+void print_symbol(FILE *out, struct menu *menu)
+{
+       struct symbol *sym = menu->sym;
+       struct property *prop;
+
+       if (sym_is_choice(sym))
+               fprintf(out, "choice\n");
+       else
+               fprintf(out, "config %s\n", sym->name);
+       switch (sym->type) {
+       case S_BOOLEAN:
+               fputs("  boolean\n", out);
+               break;
+       case S_TRISTATE:
+               fputs("  tristate\n", out);
+               break;
+       case S_STRING:
+               fputs("  string\n", out);
+               break;
+       case S_INT:
+               fputs("  integer\n", out);
+               break;
+       case S_HEX:
+               fputs("  hex\n", out);
+               break;
+       default:
+               fputs("  ???\n", out);
+               break;
+       }
+       for (prop = sym->prop; prop; prop = prop->next) {
+               if (prop->menu != menu)
+                       continue;
+               switch (prop->type) {
+               case P_PROMPT:
+                       fputs("  prompt ", out);
+                       print_quoted_string(out, prop->text);
+                       if (!expr_is_yes(prop->visible.expr)) {
+                               fputs(" if ", out);
+                               expr_fprint(prop->visible.expr, out);
+                       }
+                       fputc('\n', out);
+                       break;
+               case P_DEFAULT:
+                       fputs( "  default ", out);
+                       expr_fprint(prop->expr, out);
+                       if (!expr_is_yes(prop->visible.expr)) {
+                               fputs(" if ", out);
+                               expr_fprint(prop->visible.expr, out);
+                       }
+                       fputc('\n', out);
+                       break;
+               case P_CHOICE:
+                       fputs("  #choice value\n", out);
+                       break;
+               default:
+                       fprintf(out, "  unknown prop %d!\n", prop->type);
+                       break;
+               }
+       }
+       if (sym->help) {
+               int len = strlen(sym->help);
+               while (sym->help[--len] == '\n')
+                       sym->help[len] = 0;
+               fprintf(out, "  help\n%s\n", sym->help);
+       }
+       fputc('\n', out);
+}
+
+void zconfdump(FILE *out)
+{
+       struct property *prop;
+       struct symbol *sym;
+       struct menu *menu;
+
+       menu = rootmenu.list;
+       while (menu) {
+               if ((sym = menu->sym))
+                       print_symbol(out, menu);
+               else if ((prop = menu->prompt)) {
+                       switch (prop->type) {
+                       case P_COMMENT:
+                               fputs("\ncomment ", out);
+                               print_quoted_string(out, prop->text);
+                               fputs("\n", out);
+                               break;
+                       case P_MENU:
+                               fputs("\nmenu ", out);
+                               print_quoted_string(out, prop->text);
+                               fputs("\n", out);
+                               break;
+                       default:
+                               ;
+                       }
+                       if (!expr_is_yes(prop->visible.expr)) {
+                               fputs("  depends ", out);
+                               expr_fprint(prop->visible.expr, out);
+                               fputc('\n', out);
+                       }
+                       fputs("\n", out);
+               }
+
+               if (menu->list)
+                       menu = menu->list;
+               else if (menu->next)
+                       menu = menu->next;
+               else while ((menu = menu->parent)) {
+                       if (menu->prompt && menu->prompt->type == P_MENU)
+                               fputs("\nendmenu\n", out);
+                       if (menu->next) {
+                               menu = menu->next;
+                               break;
+                       }
+               }
+       }
+}
+
+#include "lex.zconf.c"
+#include "util.c"
+#include "confdata.c"
+#include "expr.c"
+#include "symbol.c"
+#include "menu.c"
+
+
diff --git a/lib/Config.in b/lib/Config.in
new file mode 100644 (file)
index 0000000..8ed272c
--- /dev/null
@@ -0,0 +1,150 @@
+menu "Toys"
+
+config CONFIG_DF
+       bool "df (disk free)"
+       default n
+       help
+         usage: df [-t type] [FILESYSTEM ...]
+
+         The "disk free" command, df shows total/used/available disk space for
+         each filesystem listed on the command line, or all currently mounted
+         filesystems.
+
+         -t type
+               Display only filesystems of this type.
+
+config CONFIG_DF_PEDANTIC
+       bool "options -P and -k"
+       default n
+       depends on CONFIG_DF
+       help
+         usage: df [-Pk]
+
+         -P    The SUSv3 "Pedantic" option
+
+               Provides a slightly less useful output format dictated by
+               the Single Unix Specification version 3, and sets the
+               units to 512 bytes instead of the default 1024 bytes.
+
+         -k    Sets units back to 1024 bytes (the default without -P)
+
+config CONFIG_TOYSH
+       bool "sh (toysh)"
+       default n
+       help
+         usage: sh [-c command] [script]
+
+         The toybox command shell.  Runs a shell script, or else reads input
+         interactively and responds to it.
+
+         -c    command line to execute
+
+config CONFIG_TOYSH_TTY
+       bool "Interactive shell (terminal control)"
+       default n
+       depends on CONFIG_TOYSH
+       help
+         Add terminal control to toysh.  This is necessary for interactive use,
+         so the shell isn't killed by CTRL-C.
+
+config CONFIG_TOYSH_PROFILE
+       bool "Profile support"
+       default n
+       depends on CONFIG_TOYSH_TTY
+       help
+         Read /etc/profile and ~/.profile when running interactively.
+
+         Also enables the built-in command "source".
+
+config CONFIG_TOYSH_JOBCTL
+       bool "Job Control (fg, bg, jobs)"
+       default n
+       depends on CONFIG_TOYSH_TTY
+       help
+         Add job cocntrol to toysh.  This lets toysh handle CTRL-Z, and enables
+         the built-in commands "fg", "bg", and "jobs".
+
+         With pipe support, enable use of "&" to run background processes.
+
+config CONFIG_TOYSH_FLOWCTL
+       bool "Flow control (if, while, for, functions)"
+       default n
+       depends on CONFIG_TOYSH
+       help
+         Add flow control to toysh.  This enables the if/then/else/fi,
+         while/do/done, and for/do/done constructs.
+
+         With pipe support, this enables the ability to define functions
+         using the "function name" or "name()" syntax, plus curly brackets
+         "{ }" to group commands.
+
+config CONFIG_TOYSH_QUOTES
+       bool "Smarter argument parsing (quotes)"
+       default n
+       depends on CONFIG_TOYSH
+       help
+         Add support for parsing "" and '' style quotes to the toysh command
+         parser, with lets arguments have spaces in them.
+
+
+config CONFIG_TOYSH_WILDCARDS
+       bool "Wildcards ( ?*{,} )"
+       default n
+       depends on CONFIG_TOYSH_QUOTES
+       help
+         Expand wildcards in argument names, ala "ls -l *.t?z" and
+         "rm subdir/{one,two,three}.txt".
+
+config CONFIG_TOYSH_PROCARGS
+       bool "Executable arguments ( `` and $() )"
+       default n
+       depends on CONFIG_TOYSH_QUOTES
+       help
+         Add support for executing arguments contianing $() and ``, using
+         the output of the command as the new argument value(s).
+
+         (Bash calls this "command substitution".)
+
+config CONFIG_TOYSH_ENVVARS
+       bool "Environment variable support"
+       default n
+       depends on CONFIG_TOYSH_QUOTES
+       help
+         Substitute environment variable values for $VARNAME or ${VARNAME},
+         and enable the built-in command "export".
+
+config CONFIG_TOYSH_LOCALS
+       bool "Local variables"
+       default n
+       depends on CONFIG_TOYSH_ENVVARS
+       help
+         Support for local variables, fancy prompts ($PS1), the "set" command,
+         and $?.
+
+config CONFIG_TOYSH_ARRAYS
+       bool "Array variables"
+       default n
+       depends on CONFIG_TOYSH_LOCALS
+       help
+         Support for ${blah[blah]} style array variables.
+
+config CONFIG_TOYSH_PIPES
+       bool "Pipes and redirects ( | > >> < << & && | || () ; )"
+       default n
+       depends on CONFIG_TOYSH
+       help
+         Support multiple commands on the same command line.  This includes
+         | pipes, > >> < redirects, << here documents, || && conditional
+         execution, () subshells, ; sequential execution, and (with job
+         control) & background processes.
+
+config CONFIG_TOYSH_BUILTINS
+       bool "Builtin commands"
+       default n
+       depends on CONFIG_TOYSH
+       help
+         Adds the commands exec, fg, bg, help, jobs, pwd, export, source, set,
+         unset, read, alias.
+
+endmenu
+