X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/06b00abcdd35013b7cc8125d393376d5077c59b7..08fc98e54496f7db44710f9c914664385119f9d1:/src/getargs.c diff --git a/src/getargs.c b/src/getargs.c index e420047f..68a70164 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,5 +1,6 @@ -/* Parse command line arguments for bison. - Copyright 1984, 1986, 1989, 1992, 2000, 2001, 2002 +/* Parse command line arguments for Bison. + + Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -19,62 +20,197 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include -#include "getopt.h" #include "system.h" -#include "files.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 "xalloc.h" -#include "options.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 yacc_flag = 0; /* for -y */ -int graph_flag = 0; -int trace_flag = 0; +#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; + +bool nondeterministic_parser = false; +bool glr_parser = false; +bool pure_parser = false; const char *skeleton = NULL; const char *include = NULL; extern char *program_name; -/*---------------------------. -| Display the help message. | -`---------------------------*/ + +/*---------------------. +| --trace's handling. | +`---------------------*/ + +static const char * const trace_args[] = +{ + /* 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 +}; + +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 -usage (FILE *stream) +trace_argmatch (char *args) { - /* 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); + verify (trace_constraint, ARGMATCH_CONSTRAINT (trace_args, trace_types)); + if (args) + { + args = strtok (args, ","); + do + { + 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", + "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_lookaheads, report_states | report_lookaheads, + report_states | report_solved_conflicts, + report_all +}; - fprintf (stream, _("\ + +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', stream); + putc ('\n', stdout); - fputs (_("\ + 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); + stdout); + putc ('\n', stdout); - fputs (_("\ + 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); + -y, --yacc emulate POSIX yacc\n"), stdout); + putc ('\n', stdout); - fputs (_("\ + fputs (_("\ Parser:\n\ -S, --skeleton=FILE specify the skeleton to use\n\ -t, --debug instrument the parser for debugging\n\ @@ -83,21 +219,36 @@ Parser:\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); +"), stdout); + putc ('\n', stdout); - fputs (_("\ + fputs (_("\ Output:\n\ -d, --defines also produce a header file\n\ - -v, --verbose also produce an explanation of the automaton\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\ -"), stream); - putc ('\n', stream); +"), 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\ + `lookahead' explicitly associate lookaheads 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); + } - fputs (_("\ -Report bugs to .\n"), stream); + exit (status); } @@ -106,23 +257,23 @@ Report bugs to .\n"), stream); `------------------------------*/ static void -version (FILE *stream) +version (void) { /* Some efforts were made to ease the translators' task, please continue. */ - fprintf (stream, _("bison (GNU Bison) %s"), VERSION); - putc ('\n', stream); - fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stream); - putc ('\n', stream); + printf (_("bison (GNU Bison) %s"), VERSION); + putc ('\n', stdout); + fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout); + putc ('\n', stdout); - fprintf (stream, - _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2002); + fprintf (stdout, + _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2003); 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); + stdout); } @@ -130,6 +281,55 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | 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 @@ -143,8 +343,8 @@ getargs (int argc, char *argv[]) { int c; - struct option *longopts = long_option_table_new (); - while ((c = getopt_long (argc, argv, shortopts, longopts, NULL)) != EOF) + while ((c = getopt_long (argc, argv, short_options, long_options, NULL)) + != -1) switch (c) { case 0: @@ -152,25 +352,25 @@ getargs (int argc, char *argv[]) break; case 'y': - yacc_flag = 1; + yacc_flag = true; break; case 'h': - usage (stdout); - exit (0); + usage (EXIT_SUCCESS); case 'V': - version (stdout); - exit (0); + version (); + exit (EXIT_SUCCESS); case 'g': /* Here, the -g and --graph=FILE options are differentiated. */ - graph_flag = 1; - spec_graph_file = AS_FILE_NAME (optarg); + graph_flag = true; + if (optarg) + spec_graph_file = AS_FILE_NAME (optarg); break; case 'v': - verbose_flag = 1; + report_flag |= report_states; break; case 'S': @@ -183,29 +383,29 @@ getargs (int argc, char *argv[]) case 'd': /* Here, the -d and --defines options are differentiated. */ - defines_flag = 1; + defines_flag = true; if (optarg) spec_defines_file = AS_FILE_NAME (optarg); break; case 'l': - no_lines_flag = 1; + no_lines_flag = true; break; - case 'k': - token_table_flag = 1; + case LOCATIONS_OPTION: + locations_flag = true; break; - case 'r': - fatal (_("`%s' is no longer supported"), "--raw"); + case 'k': + token_table_flag = true; break; case 'n': - no_parser_flag = 1; + no_parser_flag = true; break; case 't': - debug_flag = 1; + debug_flag = true; break; case 'o': @@ -220,22 +420,26 @@ getargs (int argc, char *argv[]) spec_name_prefix = optarg; break; + case 'r': + report_argmatch (optarg); + break; + + case 'T': + trace_argmatch (optarg); + break; + default: - fprintf (stderr, _("Try `%s --help' for more information.\n"), - program_name); - exit (1); + usage (EXIT_FAILURE); } - free (longopts); - - 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: extra arguments ignored after `%s'\n"), - program_name, argv[optind]); - infile = argv[optind]; + current_file = grammar_file = uniqstr_new (argv[optind]); }