-/* Parse command line arguments for bison,
- Copyright (C) 1984, 1986, 1989, 1992 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
-#include <stdio.h>
-#include "getopt.h"
#include "system.h"
+
+#include <argmatch.h>
+#include <error.h>
+
+/* Hack to get <getopt.h> to declare getopt with a prototype. */
+#if lint && ! defined __GNU_LIBRARY__
+# define __GNU_LIBRARY__
+# define HACK_FOR___GNU_LIBRARY___PROTOTYPE 1
+#endif
+
+#include <getopt.h>
+
+#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;
-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 */
-
-void usage PARAMS((FILE *));
-void getargs PARAMS((int, char *[]));
+bool nondeterministic_parser = false;
+bool glr_parser = false;
+bool pure_parser = false;
+
+const char *skeleton = NULL;
+const char *include = NULL;
extern char *program_name;
-extern char *version_string;
-extern void warns PARAMS((char *, char *)); /* main.c */
-struct option longopts[] =
+/*---------------------.
+| --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},
- {"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}
+ /* 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
-usage (FILE *stream)
+static const int trace_types[] =
{
- 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);
-}
+ trace_none,
+ trace_scan,
+ trace_parse,
+ trace_automaton,
+ trace_bitsets,
+ trace_grammar,
+ trace_resource,
+ trace_sets,
+ trace_tools,
+ trace_skeleton,
+ trace_time,
+ trace_all
+};
-void
-getargs (int argc, char *argv[])
+
+static void
+trace_argmatch (char *args)
{
- 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)
+ verify (trace_constraint, ARGMATCH_CONSTRAINT (trace_args, trace_types));
+ if (args)
{
- 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 '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 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 <bug-bison@gnu.org>.\n"), stdout);
}
- if (optind == argc)
+ 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 (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]);
}
projects / bison.git / blobdiff