freebsd-src/contrib/bison/getargs.c
David E. O'Brien a9aea92dee Add "--broken-undeftoken-init" option. This makes Bison 1.28 bug compatable
with version 1.25.

Bison 1.28 fixed a bug in the initialization of the `undefined' symbol
table entry.  Unfortunately something about the way we are compiling
egcs-1.1.2's cc1plus breaks with this bugfix.

"--broken-undeftoken-init" is needed when compiling cc1plus.  Otherwise
/usr/libexec/cc1plus cannot compile libgcc.
1999-08-14 22:15:21 +00:00

172 lines
3.7 KiB
C

/* Parse command line arguments for bison,
Copyright (C) 1984, 1986, 1989, 1992 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Bison 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.
Bison 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 Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include "getopt.h"
#include "system.h"
#include "files.h"
int verboseflag;
int definesflag;
int debugflag;
int nolinesflag;
int noparserflag = 0;
int toknumflag = 0;
int rawtoknumflag = 0;
int broken_undeftoken_init;
char *spec_name_prefix; /* for -p. */
char *spec_file_prefix; /* for -b. */
extern int fixed_outfiles;/* for -y */
void usage PARAMS((FILE *));
void getargs PARAMS((int, char *[]));
extern char *program_name;
extern void warns PARAMS((char *, char *)); /* main.c */
struct option longopts[] =
{
{"broken-undeftoken-init", 0, &broken_undeftoken_init, 1},
{"debug", 0, &debugflag, 1},
{"defines", 0, &definesflag, 1},
{"file-prefix", 1, 0, 'b'},
{"fixed-output-files", 0, &fixed_outfiles, 1},
{"help", 0, 0, 'h'},
{"name-prefix", 1, 0, 'p'}, /* was 'a'; apparently unused -wjh */
{"no-lines", 0, &nolinesflag, 1},
{"no-parser", 0, &noparserflag, 1},
{"output", 1, 0, 'o'},
{"output-file", 1, 0, 'o'},
{"raw", 0, &rawtoknumflag, 1},
{"token-table", 0, &toknumflag, 1},
{"verbose", 0, &verboseflag, 1},
{"version", 0, 0, 'V'},
{"yacc", 0, &fixed_outfiles, 1},
{0, 0, 0, 0}
};
void
usage (FILE *stream)
{
fprintf (stream, _("\
Usage: %s [-dhklntvyV] [-b file-prefix] [-o outfile] [-p name-prefix]\n\
[--debug] [--defines] [--fixed-output-files] [--no-lines]\n\
[--verbose] [--version] [--help] [--yacc]\n\
[--no-parser] [--token-table]\n\
[--file-prefix=prefix] [--name-prefix=prefix]\n\
[--output=outfile] grammar-file\n\n\
Report bugs to bug-bison@gnu.org\n"),
program_name);
}
void
getargs (int argc, char *argv[])
{
register int c;
verboseflag = 0;
definesflag = 0;
debugflag = 0;
noparserflag = 0;
rawtoknumflag = 0;
toknumflag = 0;
fixed_outfiles = 0;
while ((c = getopt_long (argc, argv, "yvdhrltknVo:b:p:", longopts, (int *)0))
!= EOF)
{
switch (c)
{
case 0:
/* Certain long options cause getopt_long to return 0. */
break;
case 'y':
fixed_outfiles = 1;
break;
case 'h':
usage (stdout);
exit (0);
case 'V':
printf ("%s\n", VERSION_STRING);
exit (0);
case 'v':
verboseflag = 1;
break;
case 'd':
definesflag = 1;
break;
case 'l':
nolinesflag = 1;
break;
case 'k':
toknumflag = 1;
break;
case 'r':
rawtoknumflag = 1;
break;
case 'n':
noparserflag = 1;
break;
case 't':
debugflag = 1;
break;
case 'o':
spec_outfile = optarg;
break;
case 'b':
spec_file_prefix = optarg;
break;
case 'p':
spec_name_prefix = optarg;
break;
default:
usage (stderr);
exit (1);
}
}
if (optind == argc)
{
fprintf(stderr, _("%s: no grammar file given\n"), program_name);
exit(1);
}
if (optind < argc - 1)
fprintf(stderr, _("%s: extra arguments ignored after '%s'\n"),
program_name, argv[optind]);
infile = argv[optind];
}