X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a083fbbf221545ea6e68a831da060d8834f36eca..6f43b11362bfc441d868f163146d4c19a87e47c0:/src/getargs.c diff --git a/src/getargs.c b/src/getargs.c index 80b4d149..29b349a4 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,168 +1,247 @@ -/* Parse command line arguments for bison, - Copyright (C) 1984, 1986, 1989, 1992 Free Software Foundation, Inc. +/* Parse command line arguments for bison. + Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc. -This file is part of Bison, the GNU Compiler Compiler. + 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 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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 #include "getopt.h" #include "system.h" #include "files.h" +#include "complain.h" +#include "getargs.h" + +int debug_flag = 0; +int defines_flag = 0; +int locations_flag = 0; +int no_lines_flag = 0; +int no_parser_flag = 0; +int token_table_flag = 0; +int verbose_flag = 0; +int statistics_flag = 0; +int yacc_flag = 0; /* for -y */ +int graph_flag = 0; + +const char *skeleton = NULL; -int verboseflag; -int definesflag; -int debugflag; -int nolinesflag; -int noparserflag = 0; -int toknumflag = 0; -int rawtoknumflag = 0; -char *spec_name_prefix; /* for -p. */ -char *spec_file_prefix; /* for -b. */ -extern int fixed_outfiles;/* for -y */ - extern char *program_name; -extern char *version_string; - -extern void warns(); /* main.c */ - -struct option longopts[] = +const char *shortopts = "yvgdhrltknVo:b:p:S:"; +static struct option longopts[] = { - {"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}, + /* Operation modes. */ + {"help", no_argument, 0, 'h'}, + {"version", no_argument, 0, 'V'}, + {"yacc", no_argument, 0, 'y'}, + {"fixed-output-files",no_argument, 0, 'y'}, + + /* Parser. */ + {"skeleton", required_argument, 0, 'S'}, + {"debug", no_argument, 0, 'd'}, + {"locations", no_argument, &locations_flag, 1}, + /* was 'a'; apparently unused -wjh */ + {"name-prefix", required_argument, 0, 'p'}, + {"no-lines", no_argument, 0, 'l'}, + {"no-parser", no_argument, 0, 'n'}, + {"raw", no_argument, 0, 'r'}, + {"token-table", no_argument, 0, 'k'}, + + /* Output. */ + {"defines", no_argument, 0, 'd'}, + {"verbose", no_argument, 0, 'v'}, + {"file-prefix", required_argument, 0, 'b'}, + {"output-file", required_argument, 0, 'o'}, + {"graph", no_argument, 0, 'g'}, + + /* Hidden. */ + {"statistics", no_argument, &statistics_flag, 1}, {0, 0, 0, 0} }; -void -usage (stream) - FILE *stream; +/*---------------------------. +| Display the help message. | +`---------------------------*/ + +static void +usage (FILE *stream) { + /* Some efforts were made to ease the translators' task, please + continue. */ + fputs (_("\ +GNU bison generates parsers for LALR(1) grammars.\n"), stream); + putc ('\n', 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"), - program_name); +Usage: %s [OPTION]... FILE\n"), program_name); + putc ('\n', stream); + + fputs (_("\ +If a long option shows an argument as mandatory, then it is mandatory\n\ +for the equivalent short option also. Similarly for optional arguments.\n"), + stream); + putc ('\n', stream); + + fputs (_("\ +Operation modes:\n\ + -h, --help display this help and exit\n\ + -V, --version output version information and exit\n\ + -y, --yacc emulate POSIX yacc\n"), stream); + putc ('\n', stream); + + fputs (_("\ +Parser:\n\ + -S, --skeleton=FILE specify the skeleton to use\n\ + -t, --debug instrument the parser for debugging\n\ + --locations enable locations computation\n\ + -p, --name-prefix=PREFIX prepend PREFIX to the external symbols\n\ + -l, --no-lines don't generate `#line' directives\n\ + -n, --no-parser generate the tables only\n\ + -k, --token-table include a table of token names\n\ +"), stream); + putc ('\n', stream); + + fputs (_("\ +Output:\n\ + -d, --defines also produce a header file\n\ + -v, --verbose also produce an explanation of the automaton\n\ + -b, --file-prefix=PREFIX specify a PREFIX for output files\n\ + -o, --output-file=FILE leave output to FILE\n"), stream); + putc ('\n', stream); + + fputs (_("\ +Report bugs to .\n"), stream); } + +/*------------------------------. +| Display the version message. | +`------------------------------*/ + +static void +version (FILE *stream) +{ + /* Some efforts were made to ease the translators' task, please + continue. */ + fprintf (stream, _("\ +bison (GNU Bison) %s"), VERSION); + putc ('\n', stream); + putc ('\n', stream); + + fputs (_("\ +Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.\n"), + stream); + + fputs (_("\ +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\ +"), + stream); +} + + +/*----------------------. +| Process the options. | +`----------------------*/ + void -getargs(argc, argv) - int argc; - char *argv[]; +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", 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); - } - } + int c; + + while ((c = getopt_long (argc, argv, shortopts, longopts, NULL)) != EOF) + switch (c) + { + case 0: + /* Certain long options cause getopt_long to return 0. */ + break; + + case 'y': + yacc_flag = 1; + break; + + case 'h': + usage (stdout); + exit (0); + + case 'V': + version (stdout); + exit (0); + + case 'g': + graph_flag = 1; + break; + + case 'v': + verbose_flag = 1; + break; + + case 'S': + skeleton = optarg; + break; + + case 'd': + defines_flag = 1; + break; + + case 'l': + no_lines_flag = 1; + break; + + case 'k': + token_table_flag = 1; + break; + + case 'r': + fatal (_("`%s' is no longer supported"), "--raw"); + break; + + case 'n': + no_parser_flag = 1; + break; + + case 't': + debug_flag = 1; + break; + + case 'o': + spec_outfile = optarg; + break; + + case 'b': + spec_file_prefix = optarg; + break; + + case 'p': + spec_name_prefix = optarg; + break; + + default: + fprintf (stderr, _("Try `%s --help' for more information.\n"), + program_name); + exit (1); + } if (optind == argc) { - fprintf(stderr, _("%s: no grammar file given\n"), program_name); - exit(1); + 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]); + fprintf (stderr, _("%s: extra arguments ignored after `%s'\n"), + program_name, argv[optind]); infile = argv[optind]; }