/* Parse command line arguments for Bison.
- Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 Free Software
+ Copyright (C) 1984, 1986, 1989, 1992, 2000-2015 Free Software
Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
bool nondeterministic_parser = false;
bool glr_parser = false;
+int feature_flag = feature_caret;
int report_flag = report_none;
int trace_flag = trace_none;
const char *skeleton = NULL;
int language_prio = default_prio;
struct bison_language const *language = &valid_languages[0];
-const char *include = NULL;
-
-/** Decode an option's set of keys.
+/** Decode an option's key.
*
* \param option option being decoded.
* \param keys array of valid subarguments.
* \param values array of corresponding (int) values.
* \param all the all value.
* \param flags the flags to update
- * \param args comma separated list of effective subarguments to decode.
- * If 0, then activate all the flags.
+ * \param arg the subarguments to decode.
+ * If null, then activate all the flags.
+ * \param no length of the potential "no-" prefix.
+ * Can be 0 or 3. If 3, negate the action of the subargument.
*
* If VALUE != 0 then KEY sets flags and no-KEY clears them.
* If VALUE == 0 then KEY clears all flags from \c all and no-KEY sets all
* flags from \c all. Thus no-none = all and no-all = none.
*/
static void
+flag_argmatch (const char *option,
+ const char * const keys[], const int values[],
+ int all, int *flags, char *arg, size_t no)
+{
+ int value = XARGMATCH (option, arg + no, keys, values);
+
+ /* -rnone == -rno-all, and -rno-none == -rall. */
+ if (!value)
+ {
+ value = all;
+ no = !no;
+ }
+
+ if (no)
+ *flags &= ~value;
+ else
+ *flags |= value;
+}
+
+/** 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 all the all value.
+ * \param flags the flags to update
+ * \param args comma separated list of effective subarguments to decode.
+ * If 0, then activate all the flags.
+ */
+static void
flags_argmatch (const char *option,
const char * const keys[], const int values[],
int all, int *flags, char *args)
{
if (args)
- {
- args = strtok (args, ",");
- while (args)
- {
- int value = all;
- int *save_flags = flags;
- int no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
- int err = STRPREFIX_LIT ("error", args + no) ? 5 : 0;
-
- if (err)
- flags = &errors_flag;
- if (!err || args[no + err++] != '\0')
- value = XARGMATCH (option, args + no + err, keys, values);
-
- if (!value)
- {
- if (no)
- *flags |= all;
- else
- *flags &= ~all;
- }
- else
- {
- if (no)
- *flags &= ~value;
- else
- {
- if (err)
- warnings_flag |= value;
- *flags |= value;
- }
- }
- flags = save_flags;
- args = strtok (NULL, ",");
- }
- }
+ for (args = strtok (args, ","); args; args = strtok (NULL, ","))
+ {
+ size_t no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
+ flag_argmatch (option, keys,
+ values, all, flags, args, no);
+ }
else
*flags |= all;
}
+
/** Decode a set of sub arguments.
*
* \param FlagName the flag familly to update.
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 traces",
"scan - grammar scanner traces",
"parse - grammar parser traces",
ARGMATCH_VERIFY (trace_args, trace_types);
-/*------------------------.
-| --warnings's handling. |
-`------------------------*/
+/*-----------------------.
+| --feature's handling. |
+`-----------------------*/
-static const char * const warnings_args[] =
+static const char * const feature_args[] =
{
- /* 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",
- "conflicts-sr - S/R conflicts",
- "conflicts-rr - R/R conflicts",
- "deprecated - obsolete constructs",
- "other - all other warnings",
- "all - all of the above",
- "error - warnings are errors",
+ "none",
+ "caret", "diagnostics-show-caret",
+ "all",
0
};
-static const int warnings_types[] =
+static const int feature_types[] =
{
- Wnone,
- Wmidrule_values,
- Wyacc,
- Wconflicts_sr,
- Wconflicts_rr,
- Wdeprecated,
- Wother,
- Wall,
- Werror
+ feature_none,
+ feature_caret, feature_caret,
+ feature_all
};
-ARGMATCH_VERIFY (warnings_args, warnings_types);
+ARGMATCH_VERIFY (feature_args, feature_types);
/*-------------------------------------------.
| Display the help message and exit STATUS. |
usage (int status)
{
if (status != 0)
- fprintf (stderr, _("Try `%s --help' for more information.\n"),
+ fprintf (stderr, _("Try '%s --help' for more information.\n"),
program_name);
else
{
--print-datadir output directory containing skeletons and XSLT\n\
-y, --yacc emulate POSIX Yacc\n\
-W, --warnings[=CATEGORY] report the warnings falling in CATEGORY\n\
+ -f, --feature[=FEATURE] activate miscellaneous features\n\
\n\
"), stdout);
fputs (_("\
Parser:\n\
-L, --language=LANGUAGE specify the output programming language\n\
- (this is an experimental feature)\n\
-S, --skeleton=FILE specify the skeleton to use\n\
-t, --debug instrument the parser for tracing\n\
- same as `-Dparse.trace'\n\
+ same as '-Dparse.trace'\n\
--locations enable location support\n\
-D, --define=NAME[=VALUE] similar to '%define NAME \"VALUE\"'\n\
-F, --force-define=NAME[=VALUE] override '%define NAME \"VALUE\"'\n\
deprecated by '-Dapi.prefix=PREFIX'\n\
-l, --no-lines don't generate '#line' directives\n\
-k, --token-table include a table of token names\n\
-\n\
"), stdout);
+ putc ('\n', stdout);
/* Keep -d and --defines separate so that ../build-aux/cross-options.pl
* won't assume that -d also takes an argument. */
-d likewise but cannot specify FILE (for POSIX Yacc)\n\
-r, --report=THINGS also produce details on the automaton\n\
--report-file=FILE write report to FILE\n\
- -v, --verbose same as `--report=state'\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[=FILE] also output a graph of the automaton\n\
-x, --xml[=FILE] also output an XML report of the automaton\n\
(the XML schema is experimental)\n\
-\n\
"), stdout);
+ putc ('\n', stdout);
fputs (_("\
Warning categories include:\n\
- `midrule-values' unset or unused midrule values\n\
- `yacc' incompatibilities with POSIX Yacc\n\
- `conflicts-sr' S/R conflicts (enabled by default)\n\
- `conflicts-rr' R/R conflicts (enabled by default)\n\
- `other' all other warnings (enabled by default)\n\
- `all' all the warnings\n\
- `no-CATEGORY' turn off warnings in CATEGORY\n\
- `none' turn off all the warnings\n\
- `error' treat warnings as errors\n\
-\n\
+ 'midrule-values' unset or unused midrule values\n\
+ 'yacc' incompatibilities with POSIX Yacc\n\
+ 'conflicts-sr' S/R conflicts (enabled by default)\n\
+ 'conflicts-rr' R/R conflicts (enabled by default)\n\
+ 'deprecated' obsolete constructs\n\
+ 'empty-rule' empty rules without %empty\n\
+ 'precedence' useless precedence and associativity\n\
+ 'other' all other warnings (enabled by default)\n\
+ 'all' all the warnings except 'yacc'\n\
+ 'no-CATEGORY' turn off warnings in CATEGORY\n\
+ 'none' turn off all the warnings\n\
+ 'error[=CATEGORY]' treat warnings as errors\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\
- `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\
+ 'state' describe the states\n\
+ 'itemset' complete the core item sets with their closure\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\
"), stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+FEATURE is a list of comma separated words that can include:\n\
+ 'caret' show errors with carets\n\
+ 'all' all of the above\n\
+ 'none' disable all of the above\n\
+ "), stdout);
putc ('\n', stdout);
printf (_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
skeleton = arg;
}
else if (prio == skeleton_prio)
- complain_at (loc, complaint,
- _("multiple skeleton declarations are invalid"));
+ complain (&loc, complaint,
+ _("multiple skeleton declarations are invalid"));
}
void
else
return;
- complain_at (loc, complaint, msg, quotearg_colon (arg));
+ complain (&loc, complaint, msg, quotearg_colon (arg));
}
/*----------------------.
"W::"
"b:"
"d"
- "e"
+ "f::"
"g::"
"h"
"k"
"l"
- "n"
"o:"
"p:"
"r:"
/* Parser. */
{ "name-prefix", required_argument, 0, 'p' },
- { "include", required_argument, 0, 'I' },
/* Output. */
{ "file-prefix", required_argument, 0, 'b' },
/* Output. */
{ "defines", optional_argument, 0, 'd' },
+ { "feature", optional_argument, 0, 'f' },
/* Operation modes. */
{ "fixed-output-files", no_argument, 0, 'y' },
{ "force-define", required_argument, 0, 'F' },
{ "locations", no_argument, 0, LOCATIONS_OPTION },
{ "no-lines", no_argument, 0, 'l' },
- { "raw", no_argument, 0, 0 },
{ "skeleton", required_argument, 0, 'S' },
{ "language", required_argument, 0, 'L' },
{ "token-table", no_argument, 0, 'k' },
};
/* Under DOS, there is no difference on the case. This can be
- troublesome when looking for `.tab' etc. */
+ troublesome when looking for '.tab' etc. */
#ifdef MSDOS
# define AS_FILE_NAME(File) (strlwr (File), (File))
#else
{
location res;
/* "<command line>" is used in GCC's messages about -D. */
- boundary_set (&res.start, uniqstr_new ("<command line>"), optind, -1);
+ boundary_set (&res.start, uniqstr_new ("<command line>"), optind - 1, -1);
res.end = res.start;
return res;
}
/* Certain long options cause getopt_long to return 0. */
break;
- case 'D': /* -DNAME[=VALUE]. */
- case 'F': /* -FNAME[=VALUE]. */
+ case 'D': /* -DNAME[=(VALUE|"VALUE"|{VALUE})]. */
+ case 'F': /* -FNAME[=(VALUE|"VALUE"|{VALUE})]. */
{
- char* name = optarg;
- char* value = strchr (optarg, '=');
+ char *name = optarg;
+ char *value = strchr (optarg, '=');
+ muscle_kind kind = muscle_keyword;
if (value)
- *value++ = 0;
+ {
+ char *end = value + strlen (value) - 1;
+ *value++ = 0;
+ if (*value == '{' && *end == '}')
+ {
+ kind = muscle_code;
+ ++value;
+ *end = 0;
+ }
+ else if (*value == '"' && *end == '"')
+ {
+ kind = muscle_string;
+ ++value;
+ *end = 0;
+ }
+ }
muscle_percent_define_insert (name, command_line_location (),
- value ? value : "",
+ kind, value ? value : "",
c == 'D' ? MUSCLE_PERCENT_DEFINE_D
: MUSCLE_PERCENT_DEFINE_F);
}
break;
- case 'I':
- include = AS_FILE_NAME (optarg);
- break;
-
case 'L':
language_argmatch (optarg, command_line_prio,
command_line_location ());
version ();
exit (EXIT_SUCCESS);
+ case 'f':
+ FLAGS_ARGMATCH (feature, optarg, feature_all);
+ break;
+
case 'W':
- FLAGS_ARGMATCH (warnings, optarg, Wall);
+ warnings_argmatch (optarg);
break;
case 'b':
case 't':
muscle_percent_define_insert ("parse.trace",
- command_line_location (), "",
+ command_line_location (),
+ muscle_keyword, "",
MUSCLE_PERCENT_DEFINE_D);
break;
break;
case 'y':
+ warning_argmatch ("error=yacc", 0, 6);
yacc_flag = true;
break;
projects / bison.git / blobdiff