2 Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
25 #include "obstack.h" /* We use obstacks in lex.c */
33 #ifdef HAVE_NL_LANGINFO
39 extern void fatal_error PARAMS ((const char *s, ...))
40 ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
41 void warning PARAMS ((const char *s, ...)) ATTRIBUTE_PRINTF_1;
42 void gcc_obstack_init PARAMS ((struct obstack *obstack));
43 void report PARAMS ((void));
45 static void usage PARAMS ((void)) ATTRIBUTE_NORETURN;
46 static void help PARAMS ((void)) ATTRIBUTE_NORETURN;
47 static void version PARAMS ((void)) ATTRIBUTE_NORETURN;
53 /* Current input file and output file IO streams. */
56 /* Current input filename. */
59 /* Executable name. */
62 /* Flags matching command line options. */
63 int flag_find_main = 0;
64 int flag_dump_class = 0;
65 int flag_list_filename = 0;
66 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 { NULL, no_argument, NULL, 0 }
94 fprintf (stderr, "Try `jv-scan --help' for more information.\n");
101 printf ("Usage: jv-scan [OPTION]... FILE...\n\n");
102 printf ("Print useful information read from Java source files.\n\n");
103 printf (" --complexity Print cyclomatic complexity of input file\n");
104 printf (" --encoding NAME Specify encoding of input file\n");
105 printf (" --print-main Print name of class containing `main'\n");
106 printf (" --list-class List all classes defined in file\n");
107 printf (" --list-filename Print input filename when listing class names\n");
108 printf (" -o FILE Set output file name\n");
110 printf (" --help Print this help, then exit\n");
111 printf (" --version Print version number, then exit\n");
113 printf ("For bug reporting instructions, please see:\n");
114 printf ("%s.\n", GCCBUGURL);
121 printf ("jv-scan (%s)\n\n", version_string);
122 printf ("Copyright (C) 2001 Free Software Foundation, Inc.\n");
123 printf ("This is free software; see the source for copying conditions. There is NO\n");
124 printf ("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
128 /* jc1-lite main entry point */
130 DEFUN (main, (argc, argv),
131 int argc AND char **argv)
134 const char *output_file = NULL;
135 const char *encoding = NULL;
141 /* Default for output */
144 /* Process options first. We use getopt_long and not
145 getopt_long_only because we only support `--' long options here. */
146 while ((opt = getopt_long (argc, argv, "o:", options, NULL)) != -1)
151 /* Already handled. */
155 output_file = optarg;
176 /* No flags? Do nothing */
177 if (! flag_find_main && ! flag_dump_class && ! flag_complexity)
180 /* Check on bad usage */
181 if (flag_find_main + flag_dump_class + flag_complexity > 1)
183 ("only one of `--print-main', `--list-class', and `--complexity' allowed");
185 if (output_file && !(out = fopen (output_file, "w")))
186 fatal_error ("can't open output file `%s'", output_file);
190 gcc_obstack_init (&temporary_obstack);
191 java_push_parser_context ();
193 for ( i = optind; i < argc; i++ )
196 input_filename = argv [i];
197 if ( (finput = fopen (argv [i], "r")) )
199 /* There's no point in trying to find the current encoding
200 unless we are going to do something intelligent with it
201 -- hence the test for iconv. */
203 #ifdef HAVE_NL_LANGINFO
204 setlocale (LC_CTYPE, "");
205 if (encoding == NULL)
206 encoding = nl_langinfo (CODESET);
207 #endif /* HAVE_NL_LANGINFO */
208 #endif /* HAVE_ICONV */
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 VPARAMS ((const char *s, ...))
243 VA_FIXEDARG (ap, const char *, s);
245 fprintf (stderr, "%s: error: ", exec_name);
246 vfprintf (stderr, s, ap);
247 fputc ('\n', stderr);
253 warning VPARAMS ((const char *s, ...))
256 VA_FIXEDARG (ap, const char *, s);
258 fprintf (stderr, "%s: warning: ", exec_name);
259 vfprintf (stderr, s, ap);
260 fputc ('\n', stderr);
265 gcc_obstack_init (obstack)
266 struct obstack *obstack;
268 /* Let particular systems override the size of a chunk. */
269 #ifndef OBSTACK_CHUNK_SIZE
270 #define OBSTACK_CHUNK_SIZE 0
272 /* Let them override the alloc and free routines too. */
273 #ifndef OBSTACK_CHUNK_ALLOC
274 #define OBSTACK_CHUNK_ALLOC xmalloc
276 #ifndef OBSTACK_CHUNK_FREE
277 #define OBSTACK_CHUNK_FREE free
279 _obstack_begin (obstack, OBSTACK_CHUNK_SIZE, 0,
280 (void *(*) (long)) OBSTACK_CHUNK_ALLOC,
281 (void (*) (void *)) OBSTACK_CHUNK_FREE);