/* Parse command line arguments for Bison.
Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006 Free Software Foundation, Inc.
+ 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
#include "revision.h"
#include <argmatch.h>
+#include <configmake.h>
#include <error.h>
/* Hack to get <getopt.h> to declare getopt with a prototype. */
bool nondeterministic_parser = false;
bool glr_parser = false;
+bool pull_parser = true;
bool pure_parser = false;
+bool push_parser = false;
int report_flag = report_none;
int trace_flag = trace_none;
int warnings_flag = warnings_none;
+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 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;
-extern char *program_name;
+char *program_name;
/** Decode an option's set of keys.
*
* \param option option being decoded.
- * \paran keys array of valid subarguments.
+ * \param keys array of valid subarguments.
* \param values array of corresponding (int) values.
- * \param flag the flags to update
+ * \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 int
-flags_argmatch (const char *option,
+static void
+flags_argmatch (const char *option,
const char * const keys[], const int values[],
int *flags, char *args)
{
if (args)
{
args = strtok (args, ",");
- do
+ while (args)
{
int value = XARGMATCH (option, args, keys, values);
if (value == 0)
*flags = 0;
else
*flags |= value;
+ args = strtok (NULL, ",");
}
- while ((args = strtok (NULL, ",")));
}
else
*flags = ~0;
}
-/** Decode a set of sub arguments.
+/** Decode a set of sub arguments.
*
* \param FlagName the flag familly to update.
- * \param args the effective sub arguments to decode.
+ * \param Args the effective sub arguments to decode.
*
* \arg FlagName_args the list of keys.
* \arg FlagName_types the list of values.
{
/* In a series of synonyms, present the most meaningful first, so
that argmatch_valid be more readable. */
- "none - no warnings",
- "error - warnings are errors",
- "yacc - incompatibilities with POSIX YACC",
- "all - all of the above",
+ "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_error,
+ warnings_midrule_values,
warnings_yacc,
- warnings_all
+ warnings_all,
+ warnings_error
};
ARGMATCH_VERIFY (warnings_args, warnings_types);
program_name);
else
{
- /* Some efforts were made to ease the translators' task, please
- continue. */
+ printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
fputs (_("\
-GNU bison generates LALR(1) and GLR parsers.\n"), stdout);
- putc ('\n', stdout);
-
- fprintf (stdout, _("\
-Usage: %s [OPTION]... FILE\n"), program_name);
- putc ('\n', stdout);
+Generate LALR(1) and GLR parsers.\n\
+\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);
+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"), stdout);
- putc ('\n', stdout);
+ -y, --yacc emulate POSIX Yacc\n\
+\n\
+"), stdout);
fputs (_("\
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\
+\n\
"), stdout);
- putc ('\n', stdout);
fputs (_("\
Output:\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\
+ -g, --graph also output a graph of the automaton\n\
+\n\
"), stdout);
- putc ('\n', stdout);
fputs (_("\
THINGS is a list of comma separated words that can include:\n\
`all' include all the above information\n\
`none' disable the report\n\
"), stdout);
- putc ('\n', stdout);
- fputs (_("\
-Report bugs to <" PACKAGE_BUGREPORT ">.\n"), stdout);
+ printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
}
exit (status);
}
+/*-------------------------------------.
+| --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 (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. */
-static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::W";
+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
{ "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}
/* Here, the -g and --graph=FILE options are differentiated. */
graph_flag = true;
if (optarg)
- spec_graph_file = AS_FILE_NAME (optarg);
+ spec_graph_file = xstrdup (AS_FILE_NAME (optarg));
break;
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':
/* Here, the -d and --defines options are differentiated. */
defines_flag = true;
if (optarg)
- spec_defines_file = AS_FILE_NAME (optarg);
+ spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
break;
case 'k':
break;
case 'W':
- FLAGS_ARGMATCH (warnings, optarg);
+ if (optarg)
+ FLAGS_ARGMATCH (warnings, optarg);
+ else
+ warnings_flag |= warnings_all;
break;
case LOCATIONS_OPTION:
projects / bison.git / blobdiff