-/* Parse command line arguments for bison.
- Copyright 1984, 1986, 1989, 1992, 2000, 2001, 2002
- Free Software Foundation, Inc.
+/* Parse command line arguments for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
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. */
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+#include <config.h>
#include "system.h"
-#include "getopt.h"
-#include "argmatch.h"
+#include "revision.h"
+
+#include <argmatch.h>
+#include <c-strcase.h>
+#include <configmake.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 "getargs.h"
#include "files.h"
+#include "getargs.h"
+#include "uniqstr.h"
-int debug_flag = 0;
-int defines_flag = 0;
-int locations_flag = 0;
-int no_lines_flag = 0;
-int no_parser_flag = 0;
-int report_flag = report_none;
-int token_table_flag = 0;
-int yacc_flag = 0; /* for -y */
-int graph_flag = 0;
-int trace_flag = trace_none;
-
-const char *skeleton = NULL;
-const char *include = NULL;
+bool debug_flag;
+bool defines_flag;
+bool graph_flag;
+bool locations_flag;
+bool no_lines_flag;
+bool no_parser_flag;
+bool token_table_flag;
+bool yacc_flag; /* for -y */
-extern char *program_name;
+bool error_verbose = false;
+bool nondeterministic_parser = false;
+bool glr_parser = false;
+bool pull_parser = true;
+bool pure_parser = false;
+bool push_parser = false;
-/*---------------------.
-| --trace's handling. |
-`---------------------*/
+int report_flag = report_none;
+int trace_flag = trace_none;
+int warnings_flag = warnings_none;
-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",
- "automaton - contruction of the automaton",
- "bitsets - use of bitsets",
- "grammar - reading, reducing of the grammar",
- "resource - time and memory (where available)",
- "sets - grammar sets: firsts, nullable etc.",
- "tools - m4 invocation and preserve the temporary file",
- "all - all of the above",
- 0
+static struct bison_language const valid_languages[] = {
+ { "c", "c-skel.m4", ".c", ".h", true },
+ { "c++", "c++-skel.m4", ".cc", ".hh", true },
+ { "java", "java-skel.m4", ".java", ".java", false },
+ { "", "", "", "", false }
};
-static const int trace_types[] =
-{
- trace_none,
- trace_automaton,
- trace_bitsets,
- trace_grammar,
- trace_resource,
- trace_sets,
- trace_tools,
- trace_all
-};
+static int skeleton_prio = 2;
+const char *skeleton = NULL;
+static int language_prio = 2;
+struct bison_language const *language = &valid_languages[0];
+const char *include = NULL;
+
+char *program_name;
+/** Decode an option's set of keys.
+ *
+ * \param option option being decoded.
+ * \param keys array of valid subarguments.
+ * \param values array of corresponding (int) values.
+ * \param flags the flags to update
+ * \param args colon separated list of effective subarguments to decode.
+ * If 0, then activate all the flags.
+ *
+ * The special value 0 resets the flags to 0.
+ */
static void
-trace_argmatch (char *args)
+flags_argmatch (const char *option,
+ const char * const keys[], const int values[],
+ int *flags, char *args)
{
- ARGMATCH_ASSERT (trace_args, trace_types);
if (args)
{
args = strtok (args, ",");
- do
+ while (args)
{
- int trace = XARGMATCH ("--trace", args,
- trace_args, trace_types);
- if (trace == trace_none)
- trace_flag = trace_none;
+ int value = XARGMATCH (option, args, keys, values);
+ if (value == 0)
+ *flags = 0;
else
- trace_flag |= trace;
+ *flags |= value;
+ args = strtok (NULL, ",");
}
- while ((args = strtok (NULL, ",")));
}
else
- trace_flag = trace_all;
+ *flags = ~0;
}
+/** Decode a set of sub arguments.
+ *
+ * \param FlagName the flag familly to update.
+ * \param Args the effective sub arguments to decode.
+ *
+ * \arg FlagName_args the list of keys.
+ * \arg FlagName_types the list of values.
+ * \arg FlagName_flag the flag to update.
+ */
+#define FLAGS_ARGMATCH(FlagName, Args) \
+ flags_argmatch ("--" #FlagName, FlagName ## _args, FlagName ## _types, \
+ &FlagName ## _flag, Args)
+
/*----------------------.
| --report's handling. |
"none",
"state", "states",
"itemset", "itemsets",
- "lookahead", "lookaheads",
+ "lookahead", "lookaheads", "look-ahead",
"solved",
"all",
0
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_lookahead_tokens,
+ report_states | report_lookahead_tokens,
+ report_states | report_lookahead_tokens,
report_states | report_solved_conflicts,
report_all
};
+ARGMATCH_VERIFY (report_args, report_types);
-static void
-report_argmatch (char *args)
+
+/*---------------------.
+| --trace's handling. |
+`---------------------*/
+
+static const char * const trace_args[] =
{
- ARGMATCH_ASSERT (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, ",")));
-}
+ /* In a series of synonyms, present the most meaningful first, so
+ that argmatch_valid be more readable. */
+ "none - no traces",
+ "scan - grammar scanner traces",
+ "parse - grammar parser traces",
+ "automaton - construction of the automaton",
+ "bitsets - use of bitsets",
+ "grammar - reading, reducing the grammar",
+ "resource - memory consumption (where available)",
+ "sets - grammar sets: firsts, nullable etc.",
+ "tools - m4 invocation",
+ "m4 - m4 traces",
+ "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_m4,
+ trace_skeleton,
+ trace_time,
+ trace_all
+};
-/*---------------------------.
-| Display the help message. |
-`---------------------------*/
+ARGMATCH_VERIFY (trace_args, trace_types);
-static void
-usage (FILE *stream)
+
+/*------------------------.
+| --warnings's handling. |
+`------------------------*/
+
+static const char * const warnings_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);
+ /* In a series of synonyms, present the most meaningful first, so
+ that argmatch_valid be more readable. */
+ "none - no warnings",
+ "midrule-values - unset or unused midrule values",
+ "yacc - incompatibilities with POSIX YACC",
+ "all - all of the above",
+ "error - warnings are errors",
+ 0
+};
+
+static const int warnings_types[] =
+{
+ warnings_none,
+ warnings_midrule_values,
+ warnings_yacc,
+ warnings_all,
+ warnings_error
+};
- fprintf (stream, _("\
-Usage: %s [OPTION]... FILE\n"), program_name);
- putc ('\n', stream);
+ARGMATCH_VERIFY (warnings_args, warnings_types);
- 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);
+/*-------------------------------------------.
+| Display the help message and exit STATUS. |
+`-------------------------------------------*/
- fputs (_("\
+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
+ {
+ printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
+ fputs (_("\
+Generate LALR(1) and GLR parsers.\n\
+\n\
+"), stdout);
+
+ fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+
+ fputs (_("\
+\n\
+Operation modes:\n\
+ -h, --help display this help and exit\n\
+ -V, --version output version information and exit\n\
+ --print-localedir output directory containing locale-dependent data\n\
+ -y, --yacc emulate POSIX Yacc\n\
+\n\
+"), stdout);
+
+ fputs (_("\
Parser:\n\
-S, --skeleton=FILE specify the skeleton to use\n\
-t, --debug instrument the parser for debugging\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);
+\n\
+"), stdout);
- fputs (_("\
+ 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\
-"), stream);
- putc ('\n', stream);
+ -g, --graph also output a graph of the automaton\n\
+\n\
+"), stdout);
- fputs (_("\
+ 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\
+ `lookahead' explicitly associate lookahead tokens to items\n\
`solved' describe shift/reduce conflicts solving\n\
`all' include all the above information\n\
`none' disable the report\n\
-"), stream);
- putc ('\n', stream);
+"), stdout);
- fputs (_("\
-Report bugs to <bug-bison@gnu.org>.\n"), stream);
+ printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+ }
+
+ exit (status);
}
`------------------------------*/
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);
+ printf ("%s", revision);
+ 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"), 2006);
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);
+}
+
+
+/*-------------------------------------.
+| --skeleton and --language handling. |
+`--------------------------------------*/
+
+void
+skeleton_arg (char const *arg, int prio, location const *loc)
+{
+ if (prio < skeleton_prio)
+ {
+ skeleton_prio = prio;
+ skeleton = arg;
+ }
+ else if (prio == skeleton_prio)
+ {
+ char const *msg =
+ _("multiple skeleton declarations are invalid");
+ if (loc)
+ complain_at (*loc, msg);
+ else
+ complain (msg);
+ }
}
+void
+language_argmatch (char const *arg, int prio, location const *loc)
+{
+ char const *msg;
+
+ if (prio < language_prio)
+ {
+ int i;
+ for (i = 0; valid_languages[i].language[0]; i++)
+ if (c_strcasecmp (arg, valid_languages[i].language) == 0)
+ {
+ language_prio = prio;
+ language = &valid_languages[i];
+ return;
+ }
+ msg = _("invalid language `%s'");
+ }
+ else if (language_prio == prio)
+ msg = _("multiple language declarations are invalid");
+ else
+ return;
+
+ if (loc)
+ complain_at (*loc, msg, arg);
+ else
+ complain (msg, arg);
+}
/*----------------------.
| Process the options. |
`----------------------*/
/* Shorts options. */
-const char *short_options = "yvegdhr:ltknVo:b:p:S:T::";
+static char const short_options[] = "yvegdhr:L:ltknVo:b:p:S:T::W";
+
+/* Values for long options that do not have single-letter equivalents. */
+enum
+{
+ LOCATIONS_OPTION = CHAR_MAX + 1,
+ PRINT_LOCALEDIR_OPTION
+};
static struct option const long_options[] =
{
/* Operation modes. */
- { "help", no_argument, 0, 'h' },
- { "version", no_argument, 0, 'V' },
+ { "help", no_argument, 0, 'h' },
+ { "version", no_argument, 0, 'V' },
+ { "print-localedir", no_argument, 0, PRINT_LOCALEDIR_OPTION },
+ { "warnings", optional_argument, 0, 'W' },
/* Parser. */
{ "name-prefix", required_argument, 0, 'p' },
/* Hidden. */
{ "trace", optional_argument, 0, 'T' },
- /* FIXME: semantic parsers will output an `include' of an
- output file: be sure that the naem included is indeed the name of
- the output file. */ /* FIXME Should we activate this options ?
- */
- { "output", required_argument, 0, 'o' },
- { "file-prefix", required_argument, 0, 'b' },
- { "name-prefix", required_argument, 0, 'p' },
-
- /*
- * Percent and command line declarations.
- */
-
/* Output. */
{ "defines", optional_argument, 0, 'd' },
/* Parser. */
{ "debug", no_argument, 0, 't' },
- { "locations", no_argument, &locations_flag, 1 },
+ { "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' },
+ { "language", required_argument, 0, 'L' },
{ "token-table", no_argument, 0, 'k' },
{0, 0, 0, 0}
{
int c;
- while ((c = getopt_long (argc, argv, short_options, long_options, NULL)) != EOF)
+ 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 = 1;
+ case 'b':
+ spec_file_prefix = AS_FILE_NAME (optarg);
break;
- case 'h':
- usage (stdout);
- exit (0);
-
- case 'V':
- version (stdout);
- exit (0);
-
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 = xstrdup (AS_FILE_NAME (optarg));
break;
- case 'v':
- report_flag |= report_states;
+ case 'h':
+ usage (EXIT_SUCCESS);
+
+ case 'L':
+ language_argmatch (optarg, 0, NULL);
break;
case 'S':
- skeleton = AS_FILE_NAME (optarg);
+ skeleton_arg (AS_FILE_NAME (optarg), 0, NULL);
break;
case 'I':
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;
+ spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
break;
case 'k':
- token_table_flag = 1;
+ token_table_flag = true;
break;
- case 'n':
- no_parser_flag = 1;
+ case 'l':
+ no_lines_flag = true;
break;
- case 't':
- debug_flag = 1;
+ case 'n':
+ no_parser_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);
+ FLAGS_ARGMATCH (report, optarg);
break;
case 'T':
- trace_argmatch (optarg);
+ FLAGS_ARGMATCH (trace, optarg);
+ break;
+
+ case 't':
+ debug_flag = true;
+ break;
+
+ case 'V':
+ version ();
+ exit (EXIT_SUCCESS);
+
+ case 'v':
+ report_flag |= report_states;
break;
+ case 'y':
+ yacc_flag = true;
+ break;
+
+ case 'W':
+ if (optarg)
+ FLAGS_ARGMATCH (warnings, optarg);
+ else
+ warnings_flag |= warnings_all;
+ break;
+
+ case LOCATIONS_OPTION:
+ locations_flag = true;
+ break;
+
+ case PRINT_LOCALEDIR_OPTION:
+ printf ("%s\n", LOCALEDIR);
+ exit (EXIT_SUCCESS);
+
default:
- fprintf (stderr, _("Try `%s --help' for more information.\n"),
- program_name);
- exit (1);
+ 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: 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