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/* Main for jv-scan
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
This file is part of GCC.
GCC 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.
GCC 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 GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "intl.h"
#include "obstack.h" /* We use obstacks in lex.c */
#include "version.h"
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#ifdef HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
#include <getopt.h>
extern void fatal_error (const char *gmsgid, ...)
ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
void warning (const char *gmsgid, ...) ATTRIBUTE_PRINTF_1;
void report (void);
static void usage (void) ATTRIBUTE_NORETURN;
static void help (void) ATTRIBUTE_NORETURN;
static void version (void) ATTRIBUTE_NORETURN;
#define JC1_LITE
#include "jcf.h"
#include "parse.h"
/* Current input file and output file IO streams. */
FILE *finput, *out;
/* Executable name. */
char *exec_name;
struct line_maps line_table;
/* Flags matching command line options. */
int flag_find_main = 0;
int flag_dump_class = 0;
int flag_list_filename = 0;
int flag_complexity = 0;
int flag_assert = 1;
int pedantic = 0;
/* This is used to mark options with no short value. */
#define LONG_OPT(Num) ((Num) + 128)
#define OPT_HELP LONG_OPT (0)
#define OPT_VERSION LONG_OPT (1)
#define OPT_ENCODING LONG_OPT (2)
static const struct option options[] =
{
{ "help", no_argument, NULL, OPT_HELP },
{ "version", no_argument, NULL, OPT_VERSION },
{ "print-main", no_argument, &flag_find_main, 1 },
{ "list-filename", no_argument, &flag_list_filename, 1 },
{ "list-class", no_argument, &flag_dump_class, 1 },
{ "encoding", required_argument, NULL, OPT_ENCODING },
{ "complexity", no_argument, &flag_complexity, 1 },
{ "no-assert", no_argument, &flag_assert, 0 },
{ "assert", no_argument, &flag_assert, 1 },
{ NULL, no_argument, NULL, 0 }
};
static void
usage (void)
{
fprintf (stderr, _("Try 'jv-scan --help' for more information.\n"));
exit (1);
}
static void
help (void)
{
printf (_("Usage: jv-scan [OPTION]... FILE...\n\n"));
printf (_("Print useful information read from Java source files.\n\n"));
printf (_(" --no-assert Don't recognize the assert keyword\n"));
printf (_(" --complexity Print cyclomatic complexity of input file\n"));
printf (_(" --encoding NAME Specify encoding of input file\n"));
printf (_(" --print-main Print name of class containing 'main'\n"));
printf (_(" --list-class List all classes defined in file\n"));
printf (_(" --list-filename Print input filename when listing class names\n"));
printf (_(" -o FILE Set output file name\n"));
printf ("\n");
printf (_(" --help Print this help, then exit\n"));
printf (_(" --version Print version number, then exit\n"));
printf ("\n");
printf (_("For bug reporting instructions, please see:\n"
"%s.\n"), bug_report_url);
exit (0);
}
static void
version (void)
{
printf ("jv-scan (GCC) %s\n\n", version_string);
printf ("Copyright %s 2004 Free Software Foundation, Inc.\n", _("(C)"));
printf (_("This is free software; see the source for copying conditions. There is NO\n"
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"));
exit (0);
}
/* jc1-lite main entry point */
int
main (int argc, char **argv)
{
int i = 1;
const char *output_file = NULL;
const char *encoding = NULL;
long ft;
int opt;
exec_name = argv[0];
/* Default for output */
out = stdout;
/* Unlock the stdio streams. */
unlock_std_streams ();
gcc_init_libintl ();
/* Process options first. We use getopt_long and not
getopt_long_only because we only support `--' long options here. */
while ((opt = getopt_long (argc, argv, "o:", options, NULL)) != -1)
{
switch (opt)
{
case 0:
/* Already handled. */
break;
case 'o':
output_file = optarg;
break;
case OPT_HELP:
help ();
break;
case OPT_VERSION:
version ();
break;
case OPT_ENCODING:
encoding = optarg;
break;
default:
usage ();
break;
}
}
/* No flags? Do nothing */
if (! flag_find_main && ! flag_dump_class && ! flag_complexity)
return 0;
/* Check on bad usage */
if (flag_find_main + flag_dump_class + flag_complexity > 1)
fatal_error
("only one of '--print-main', '--list-class', and '--complexity' allowed");
if (output_file && !(out = fopen (output_file, "w")))
fatal_error ("can't open output file '%s'", output_file);
ft = ftell (out);
gcc_obstack_init (&temporary_obstack);
java_push_parser_context ();
for ( i = optind; i < argc; i++ )
if (argv [i])
{
char *filename = argv[i];
if ( (finput = fopen (filename, "r")) )
{
/* There's no point in trying to find the current encoding
unless we are going to do something intelligent with it
-- hence the test for iconv. */
#if defined (HAVE_LOCALE_H) && defined (HAVE_ICONV) && defined (HAVE_LANGINFO_CODESET)
setlocale (LC_CTYPE, "");
if (encoding == NULL)
encoding = nl_langinfo (CODESET);
#endif
if (encoding == NULL || *encoding == '\0')
encoding = DEFAULT_ENCODING;
main_input_filename = filename;
java_init_lex (finput, encoding);
ctxp->filename = filename;
yyparse ();
report ();
if (ftell (out) != ft)
fputc ('\n', out);
ft = ftell (out);
fclose (finput);
reset_report ();
}
else
fatal_error ("file not found '%s'", argv [i]);
}
/* Flush and close */
if (ftell (out) != ft)
fputc ('\n', out);
if (!output_file)
fclose (out);
return 0;
}
/* Error report, memory, obstack initialization and other utility
functions. Use actually c-format msgid, but as functions with
the same name elsewhere use gcc-internal-format, assume all users
here use intersection between c-format and gcc-internal-format. */
void
fatal_error (const char *gmsgid, ...)
{
va_list ap;
va_start (ap, gmsgid);
fprintf (stderr, _("%s: error: "), exec_name);
vfprintf (stderr, _(gmsgid), ap);
fputc ('\n', stderr);
va_end (ap);
exit (1);
}
void
warning (const char *gmsgid, ...)
{
va_list ap;
va_start (ap, gmsgid);
fprintf (stderr, _("%s: warning: "), exec_name);
vfprintf (stderr, _(gmsgid), ap);
fputc ('\n', stderr);
va_end (ap);
}
void
fancy_abort (const char *file, int line, const char *func)
{
fatal_error ("abort in %s, at %s:%d", func, file, line);
}