X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f6b561d9f9cbc6fc95bbb86518372a5cb52f45a6..75ae8299840bbd854fa2474d38402bbb933c6511:/src/getargs.c?ds=inline diff --git a/src/getargs.c b/src/getargs.c index cf5af694..e6f9d766 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,6 +1,6 @@ /* Parse command line arguments for Bison. - Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 Free Software + Copyright (C) 1984, 1986, 1989, 1992, 2000-2013 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -46,6 +46,7 @@ bool yacc_flag; /* for -y */ bool nondeterministic_parser = false; bool glr_parser = false; +int feature_flag = feature_caret; int report_flag = report_none; int trace_flag = trace_none; @@ -73,8 +74,6 @@ const char *include = NULL; * 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. - * \param err length of a potential "error=". - * Can be 0 or 6. If 6, treat the subargument as a CATEGORY * * 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 @@ -83,36 +82,23 @@ const char *include = NULL; static void flag_argmatch (const char *option, const char * const keys[], const int values[], - int all, int *flags, char *arg, size_t no, size_t err) + int all, int *flags, char *arg, size_t no) { - int value = 0; - if (!err || arg[no + err++] != '\0') - value = XARGMATCH (option, arg + no + err, keys, values); + int value = XARGMATCH (option, arg + no, keys, values); - if (value) + /* -rnone == -rno-all, and -rno-none == -rall. */ + if (!value) { - if (no) - *flags &= ~value; - else - { - if (err) - warnings_flag |= value; - *flags |= value; - } + value = all; + no = !no; } + + if (no) + *flags &= ~value; else - { - /* With a simpler 'if (no)' version, -Werror means -Werror=all - (or rather, -Werror=no-none, but that syntax is invalid). - The difference is: - - Werror activates all errors, but not the warnings - - Werror=all activates errors, and all warnings */ - if (no ? !err : err) - *flags |= all; - else - *flags &= ~all; - } + *flags |= value; } + /** Decode an option's set of keys. * * \param option option being decoded. @@ -132,16 +118,14 @@ flags_argmatch (const char *option, for (args = strtok (args, ","); args; args = strtok (NULL, ",")) { size_t no = STRPREFIX_LIT ("no-", args) ? 3 : 0; - size_t err = STRPREFIX_LIT ("error", args + no) ? 5 : 0; - flag_argmatch (option, keys, - values, all, err ? &errors_flag : flags, - args, no, err); + values, all, flags, args, no); } else *flags |= all; } + /** Decode a set of sub arguments. * * \param FlagName the flag familly to update. @@ -195,8 +179,6 @@ ARGMATCH_VERIFY (report_args, report_types); 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", @@ -237,40 +219,26 @@ static const int trace_types[] = 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. | @@ -282,7 +250,7 @@ static void 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 { @@ -315,16 +283,16 @@ Operation modes:\n\ --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\ @@ -332,8 +300,8 @@ Parser:\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. */ @@ -343,39 +311,49 @@ Output:\n\ -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\ - `deprecated' obsolete constructs\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[=CATEGORY]' treat warnings as errors\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); @@ -486,6 +464,7 @@ static char const short_options[] = "W::" "b:" "d" + "f::" "e" "g::" "h" @@ -538,6 +517,7 @@ static struct option const long_options[] = /* Output. */ { "defines", optional_argument, 0, 'd' }, + { "feature", optional_argument, 0, 'f' }, /* Operation modes. */ { "fixed-output-files", no_argument, 0, 'y' }, @@ -558,7 +538,7 @@ static struct option const long_options[] = }; /* 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 @@ -572,7 +552,7 @@ command_line_location (void) { location res; /* "" is used in GCC's messages about -D. */ - boundary_set (&res.start, uniqstr_new (""), optind, -1); + boundary_set (&res.start, uniqstr_new (""), optind - 1, -1); res.end = res.start; return res; } @@ -602,6 +582,7 @@ getargs (int argc, char *argv[]) if (value) *value++ = 0; muscle_percent_define_insert (name, command_line_location (), + muscle_string, value ? value : "", c == 'D' ? MUSCLE_PERCENT_DEFINE_D : MUSCLE_PERCENT_DEFINE_F); @@ -630,8 +611,12 @@ getargs (int argc, char *argv[]) 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': @@ -682,7 +667,8 @@ getargs (int argc, char *argv[]) case 't': muscle_percent_define_insert ("parse.trace", - command_line_location (), "", + command_line_location (), + muscle_keyword, "", MUSCLE_PERCENT_DEFINE_D); break; @@ -700,8 +686,7 @@ getargs (int argc, char *argv[]) break; case 'y': - warnings_flag |= Wyacc; - errors_flag |= Wyacc; + warning_argmatch ("error=yacc", 0, 6); yacc_flag = true; break;