X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3d8fc6caa543469fedaa7d153134ebc47ec04ddf..e62f1a899168bdf1658dd6d934dea407491a80ff:/src/getargs.c?ds=inline diff --git a/src/getargs.c b/src/getargs.c index d853118e..969c6611 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,135 +1,447 @@ -/* Parse command line arguments for bison, - Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc. +/* Parse command line arguments for Bison. -This file is part of Bison, the GNU Compiler Compiler. + Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005 + Free Software Foundation, Inc. -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. + This file is part of Bison, the GNU Compiler Compiler. -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. + 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. -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 +#include + +/* Hack to get to declare getopt with a prototype. */ +#if lint && ! defined __GNU_LIBRARY__ +# define __GNU_LIBRARY__ +# define HACK_FOR___GNU_LIBRARY___PROTOTYPE 1 +#endif + +#include + +#ifdef HACK_FOR___GNU_LIBRARY___PROTOTYPE +# undef __GNU_LIBRARY__ +# undef HACK_FOR___GNU_LIBRARY___PROTOTYPE +#endif + +#include "complain.h" #include "files.h" +#include "getargs.h" +#include "uniqstr.h" + +bool debug_flag; +bool defines_flag; +bool locations_flag; +bool no_lines_flag; +bool no_parser_flag; +int report_flag = report_none; +bool token_table_flag; +bool yacc_flag; /* for -y */ +bool graph_flag; +int trace_flag = trace_none; -int verboseflag; -int definesflag; -int debugflag; -int nolinesflag; -char *spec_name_prefix; /* for -p. */ -char *spec_file_prefix; /* for -b. */ -extern int fixed_outfiles;/* for -y */ +bool nondeterministic_parser = false; +bool glr_parser = false; +bool pure_parser = false; -extern void fatal(); +const char *skeleton = NULL; +const char *include = NULL; -struct option longopts[] = +extern char *program_name; + + +/*---------------------. +| --trace's handling. | +`---------------------*/ + +static const char * const trace_args[] = { - {"debug", 0, &debugflag, 1}, - {"defines", 0, &definesflag, 1}, - {"file-prefix", 1, 0, 'b'}, - {"fixed-output-files", 0, &fixed_outfiles, 1}, - {"name-prefix", 1, 0, 'a'}, - {"no-lines", 0, &nolinesflag, 1}, - {"output", 1, 0, 'o'}, - {"output-file", 1, 0, 'o'}, - {"verbose", 0, &verboseflag, 1}, - {"version", 0, 0, 'V'}, - {"yacc", 0, &fixed_outfiles, 1}, - {0, 0, 0, 0} + /* In a series of synonyms, present the most meaningful first, so + that argmatch_valid be more readable. */ + "none - no report", + "scan - grammar scanner traces", + "parse - grammar parser traces", + "automaton - contruction of the automaton", + "bitsets - use of bitsets", + "grammar - reading, reducing of the grammar", + "resource - memory consumption (where available)", + "sets - grammar sets: firsts, nullable etc.", + "tools - m4 invocation and preserve the temporary file", + "skeleton - skeleton postprocessing", + "time - time consumption", + "all - all of the above", + 0 }; -void -getargs(argc, argv) - int argc; - char *argv[]; +static const int trace_types[] = +{ + trace_none, + trace_scan, + trace_parse, + trace_automaton, + trace_bitsets, + trace_grammar, + trace_resource, + trace_sets, + trace_tools, + trace_skeleton, + trace_time, + trace_all +}; + + +static void +trace_argmatch (char *args) { - register int c; - int longind; - extern char *program_name; - extern char *version_string; - - verboseflag = 0; - definesflag = 0; - debugflag = 0; - fixed_outfiles = 0; - - while ((c = getopt_long (argc, argv, "yvdltVo:b:p:", longopts, &longind)) - != EOF) + verify (trace_constraint, ARGMATCH_CONSTRAINT (trace_args, trace_types)); + if (args) { - if (c == 0 && longopts[longind].flag == 0) - c = longopts[longind].val; - switch (c) + args = strtok (args, ","); + do { - case 0: - /* Certain long options cause getopt_long to return 0. */ - break; - - case 'y': - fixed_outfiles = 1; - break; - - case 'V': - printf("%s", version_string); - break; - - case 'v': - verboseflag = 1; - break; - - case 'd': - definesflag = 1; - break; - - case 'l': - nolinesflag = 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: - fprintf (stderr, "\ -Usage: %s [-dltvyV] [-b file-prefix] [-o outfile] [-p name-prefix]\n\ - [--debug] [--defines] [--fixed-output-files] [--no-lines]\n\ - [--verbose] [--version] [--yacc]\n\ - [--file-prefix=prefix] [--name-prefix=prefix]\n\ - [--output=outfile] grammar-file\n", - program_name); - exit (1); + int trace = XARGMATCH ("--trace", args, + trace_args, trace_types); + if (trace == trace_none) + trace_flag = trace_none; + else + trace_flag |= trace; } + while ((args = strtok (NULL, ","))); } + else + trace_flag = trace_all; +} + + +/*----------------------. +| --report's handling. | +`----------------------*/ + +static const char * const report_args[] = +{ + /* In a series of synonyms, present the most meaningful first, so + that argmatch_valid be more readable. */ + "none", + "state", "states", + "itemset", "itemsets", + "look-ahead", "lookahead", "lookaheads", + "solved", + "all", + 0 +}; + +static const int report_types[] = +{ + report_none, + report_states, report_states, + report_states | report_itemsets, report_states | report_itemsets, + report_states | report_look_ahead_tokens, + report_states | report_look_ahead_tokens, + report_states | report_look_ahead_tokens, + report_states | report_solved_conflicts, + report_all +}; + + +static void +report_argmatch (char *args) +{ + verify (report_constraint, ARGMATCH_CONSTRAINT (report_args, report_types)); + args = strtok (args, ","); + do + { + int report = XARGMATCH ("--report", args, + report_args, report_types); + if (report == report_none) + report_flag = report_none; + else + report_flag |= report; + } + while ((args = strtok (NULL, ","))); +} + + +/*-------------------------------------------. +| Display the help message and exit STATUS. | +`-------------------------------------------*/ + +static void usage (int) ATTRIBUTE_NORETURN; + +static void +usage (int status) +{ + if (status != 0) + fprintf (stderr, _("Try `%s --help' for more information.\n"), + program_name); + else + { + /* Some efforts were made to ease the translators' task, please + continue. */ + fputs (_("\ +GNU bison generates parsers for LALR(1) grammars.\n"), stdout); + putc ('\n', stdout); + + fprintf (stdout, _("\ +Usage: %s [OPTION]... FILE\n"), program_name); + putc ('\n', stdout); + + 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"), + stdout); + putc ('\n', stdout); + + 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"), stdout); + putc ('\n', stdout); + + 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\ +"), stdout); + putc ('\n', stdout); + + fputs (_("\ +Output:\n\ + -d, --defines also produce a header file\n\ + -r, --report=THINGS also produce details on the automaton\n\ + -v, --verbose same as `--report=state'\n\ + -b, --file-prefix=PREFIX specify a PREFIX for output files\n\ + -o, --output=FILE leave output to FILE\n\ + -g, --graph also produce a VCG description of the automaton\n\ +"), stdout); + putc ('\n', stdout); + + fputs (_("\ +THINGS is a list of comma separated words that can include:\n\ + `state' describe the states\n\ + `itemset' complete the core item sets with their closure\n\ + `look-ahead' explicitly associate look-ahead tokens to items\n\ + `solved' describe shift/reduce conflicts solving\n\ + `all' include all the above information\n\ + `none' disable the report\n\ +"), stdout); + putc ('\n', stdout); + + fputs (_("\ +Report bugs to .\n"), stdout); + } + + exit (status); +} + + +/*------------------------------. +| Display the version message. | +`------------------------------*/ + +static void +version (void) +{ + /* Some efforts were made to ease the translators' task, please + continue. */ + printf (_("bison (GNU Bison) %s"), VERSION); + putc ('\n', stdout); + fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout); + putc ('\n', stdout); + + fprintf (stdout, + _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2005); + + 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\ +"), + stdout); +} + + +/*----------------------. +| Process the options. | +`----------------------*/ + +/* Shorts options. */ +const char *short_options = "yvegdhr:ltknVo:b:p:S:T::"; + +/* Values for long options that do not have single-letter equivalents. */ +enum +{ + LOCATIONS_OPTION = CHAR_MAX + 1 +}; + +static struct option const long_options[] = +{ + /* Operation modes. */ + { "help", no_argument, 0, 'h' }, + { "version", no_argument, 0, 'V' }, + + /* Parser. */ + { "name-prefix", required_argument, 0, 'p' }, + { "include", required_argument, 0, 'I' }, + + /* Output. */ + { "file-prefix", required_argument, 0, 'b' }, + { "output", required_argument, 0, 'o' }, + { "output-file", required_argument, 0, 'o' }, + { "graph", optional_argument, 0, 'g' }, + { "report", required_argument, 0, 'r' }, + { "verbose", no_argument, 0, 'v' }, + + /* Hidden. */ + { "trace", optional_argument, 0, 'T' }, + + /* Output. */ + { "defines", optional_argument, 0, 'd' }, + + /* Operation modes. */ + { "fixed-output-files", no_argument, 0, 'y' }, + { "yacc", no_argument, 0, 'y' }, + + /* Parser. */ + { "debug", no_argument, 0, 't' }, + { "locations", no_argument, 0, LOCATIONS_OPTION }, + { "no-lines", no_argument, 0, 'l' }, + { "no-parser", no_argument, 0, 'n' }, + { "raw", no_argument, 0, 0 }, + { "skeleton", required_argument, 0, 'S' }, + { "token-table", no_argument, 0, 'k' }, + + {0, 0, 0, 0} +}; + +/* Under DOS, there is no difference on the case. This can be + troublesome when looking for `.tab' etc. */ +#ifdef MSDOS +# define AS_FILE_NAME(File) (strlwr (File), (File)) +#else +# define AS_FILE_NAME(File) (File) +#endif + +void +getargs (int argc, char *argv[]) +{ + int c; + + while ((c = getopt_long (argc, argv, short_options, long_options, NULL)) + != -1) + switch (c) + { + case 0: + /* Certain long options cause getopt_long to return 0. */ + break; + + case 'y': + yacc_flag = true; + break; + + case 'h': + usage (EXIT_SUCCESS); + + case 'V': + version (); + exit (EXIT_SUCCESS); + + case 'g': + /* Here, the -g and --graph=FILE options are differentiated. */ + graph_flag = true; + if (optarg) + spec_graph_file = AS_FILE_NAME (optarg); + break; + + case 'v': + report_flag |= report_states; + break; + + case 'S': + skeleton = AS_FILE_NAME (optarg); + break; + + case 'I': + include = AS_FILE_NAME (optarg); + break; + + case 'd': + /* Here, the -d and --defines options are differentiated. */ + defines_flag = true; + if (optarg) + spec_defines_file = AS_FILE_NAME (optarg); + break; + + case 'l': + no_lines_flag = true; + break; + + case LOCATIONS_OPTION: + locations_flag = true; + break; + + case 'k': + token_table_flag = true; + break; + + case 'n': + no_parser_flag = true; + break; + + case 't': + debug_flag = true; + break; + + case 'o': + spec_outfile = AS_FILE_NAME (optarg); + break; + + case 'b': + spec_file_prefix = AS_FILE_NAME (optarg); + break; + + case 'p': + spec_name_prefix = optarg; + break; + + case 'r': + report_argmatch (optarg); + break; + + case 'T': + trace_argmatch (optarg); + break; + + default: + usage (EXIT_FAILURE); + } - if (optind == argc) + if (argc - optind != 1) { - fprintf(stderr, "%s: no grammar file given\n", program_name); - exit(1); + if (argc - optind < 1) + error (0, 0, _("missing operand after `%s'"), argv[argc - 1]); + else + error (0, 0, _("extra operand `%s'"), argv[optind + 1]); + usage (EXIT_FAILURE); } - if (optind < argc - 1) - fprintf(stderr, "%s: warning: extra arguments ignored\n", program_name); - infile = argv[optind]; + current_file = grammar_file = uniqstr_new (argv[optind]); }