2 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
4 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
25 #include "coretypes.h"
28 #include "obstack.h" /* We use obstacks in lex.c */
36 #ifdef HAVE_LANGINFO_CODESET
42 extern void fatal_error (const char *s, ...)
43 ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
44 void warning (const char *s, ...) ATTRIBUTE_PRINTF_1;
47 static void usage (void) ATTRIBUTE_NORETURN;
48 static void help (void) ATTRIBUTE_NORETURN;
49 static void version (void) ATTRIBUTE_NORETURN;
55 /* Current input file and output file IO streams. */
58 /* Executable name. */
61 /* Flags matching command line options. */
62 int flag_find_main = 0;
63 int flag_dump_class = 0;
64 int flag_list_filename = 0;
65 int flag_complexity = 0;
72 /* This is used to mark options with no short value. */
73 #define LONG_OPT(Num) ((Num) + 128)
75 #define OPT_HELP LONG_OPT (0)
76 #define OPT_VERSION LONG_OPT (1)
77 #define OPT_ENCODING LONG_OPT (2)
79 static const struct option options[] =
81 { "help", no_argument, NULL, OPT_HELP },
82 { "version", no_argument, NULL, OPT_VERSION },
83 { "print-main", no_argument, &flag_find_main, 1 },
84 { "list-filename", no_argument, &flag_list_filename, 1 },
85 { "list-class", no_argument, &flag_dump_class, 1 },
86 { "encoding", required_argument, NULL, OPT_ENCODING },
87 { "complexity", no_argument, &flag_complexity, 1 },
88 { "no-assert", no_argument, &flag_assert, 0 },
89 { "assert", no_argument, &flag_assert, 1 },
90 { NULL, no_argument, NULL, 0 }
96 fprintf (stderr, "Try `jv-scan --help' for more information.\n");
103 printf ("Usage: jv-scan [OPTION]... FILE...\n\n");
104 printf ("Print useful information read from Java source files.\n\n");
105 printf (" --no-assert Don't recognize the assert keyword\n");
106 printf (" --complexity Print cyclomatic complexity of input file\n");
107 printf (" --encoding NAME Specify encoding of input file\n");
108 printf (" --print-main Print name of class containing `main'\n");
109 printf (" --list-class List all classes defined in file\n");
110 printf (" --list-filename Print input filename when listing class names\n");
111 printf (" -o FILE Set output file name\n");
113 printf (" --help Print this help, then exit\n");
114 printf (" --version Print version number, then exit\n");
116 printf ("For bug reporting instructions, please see:\n");
117 printf ("%s.\n", bug_report_url);
124 printf ("jv-scan (GCC) %s\n\n", version_string);
125 printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
126 printf ("This is free software; see the source for copying conditions. There is NO\n");
127 printf ("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
131 /* jc1-lite main entry point */
133 main (int argc, char **argv)
136 const char *output_file = NULL;
137 const char *encoding = NULL;
143 /* Default for output */
146 /* Process options first. We use getopt_long and not
147 getopt_long_only because we only support `--' long options here. */
148 while ((opt = getopt_long (argc, argv, "o:", options, NULL)) != -1)
153 /* Already handled. */
157 output_file = optarg;
178 /* No flags? Do nothing */
179 if (! flag_find_main && ! flag_dump_class && ! flag_complexity)
182 /* Check on bad usage */
183 if (flag_find_main + flag_dump_class + flag_complexity > 1)
185 ("only one of `--print-main', `--list-class', and `--complexity' allowed");
187 if (output_file && !(out = fopen (output_file, "w")))
188 fatal_error ("can't open output file `%s'", output_file);
192 gcc_obstack_init (&temporary_obstack);
193 java_push_parser_context ();
195 for ( i = optind; i < argc; i++ )
198 input_filename = argv [i];
199 if ( (finput = fopen (argv [i], "r")) )
201 /* There's no point in trying to find the current encoding
202 unless we are going to do something intelligent with it
203 -- hence the test for iconv. */
204 #if defined (HAVE_LOCALE_H) && defined (HAVE_ICONV) && defined (HAVE_LANGINFO_CODESET)
205 setlocale (LC_CTYPE, "");
206 if (encoding == NULL)
207 encoding = nl_langinfo (CODESET);
209 if (encoding == NULL || *encoding == '\0')
210 encoding = DEFAULT_ENCODING;
212 java_init_lex (finput, encoding);
215 if (ftell (out) != ft)
222 fatal_error ("file not found `%s'", argv [i]);
225 /* Flush and close */
226 if (ftell (out) != ft)
236 /* Error report, memory, obstack initialization and other utility
240 fatal_error (const char *s, ...)
244 fprintf (stderr, "%s: error: ", exec_name);
245 vfprintf (stderr, s, ap);
246 fputc ('\n', stderr);
252 warning (const char *s, ...)
256 fprintf (stderr, "%s: warning: ", exec_name);
257 vfprintf (stderr, s, ap);
258 fputc ('\n', stderr);