X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/59da312bc7a98d2cea04dceb53fc9e7b6c9c1ee3..84526bf3d156154d8372fff0d232dd4f347f2233:/src/getargs.c diff --git a/src/getargs.c b/src/getargs.c index 9661fefe..82e4e356 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,7 +1,7 @@ /* Parse command line arguments for Bison. - Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, - 2005, 2006, 2007, 2008 Free Software Foundation, Inc. + Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 Free Software + Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -20,7 +20,6 @@ #include #include "system.h" -#include "revision.h" #include "output.h" #include @@ -41,28 +40,29 @@ # undef HACK_FOR___GNU_LIBRARY___PROTOTYPE #endif +#include + #include "complain.h" #include "files.h" #include "getargs.h" +#include "muscle-tab.h" +#include "quote.h" #include "uniqstr.h" -bool debug_flag; bool defines_flag; bool graph_flag; bool xml_flag; -bool locations_flag; bool no_lines_flag; bool token_table_flag; -bool yacc_flag; /* for -y */ - -bool error_verbose = false; +bool yacc_flag; /* for -y */ bool nondeterministic_parser = false; bool glr_parser = false; int report_flag = report_none; int trace_flag = trace_none; -int warnings_flag = warnings_none; +int warnings_flag = warnings_conflicts_sr | warnings_conflicts_rr + | warnings_other; static struct bison_language const valid_languages[] = { { "c", "c-skel.m4", ".c", ".h", true }, @@ -71,46 +71,58 @@ static struct bison_language const valid_languages[] = { { "", "", "", "", false } }; -static int skeleton_prio = 2; +int skeleton_prio = default_prio; const char *skeleton = NULL; -static int language_prio = 2; +int language_prio = default_prio; 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 all the all value. * \param flags the flags to update - * \param args colon separated list of effective subarguments to decode. + * \param args comma separated list of effective subarguments to decode. * If 0, then activate all the flags. * - * The special value 0 resets the flags to 0. + * 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 flags_argmatch (const char *option, - const char * const keys[], const int values[], - int *flags, char *args) + const char * const keys[], const int values[], + int all, int *flags, char *args) { if (args) { args = strtok (args, ","); while (args) - { - int value = XARGMATCH (option, args, keys, values); - if (value == 0) - *flags = 0; - else - *flags |= value; - args = strtok (NULL, ","); - } + { + int no = STRPREFIX_LIT ("no-", args) ? 3 : 0; + int value = XARGMATCH (option, args + no, keys, values); + if (value == 0) + { + if (no) + *flags |= all; + else + *flags &= ~all; + } + else + { + if (no) + *flags &= ~value; + else + *flags |= value; + } + args = strtok (NULL, ","); + } } else - *flags = ~0; + *flags |= all; } /** Decode a set of sub arguments. @@ -120,11 +132,12 @@ flags_argmatch (const char *option, * * \arg FlagName_args the list of keys. * \arg FlagName_types the list of values. + * \arg FlagName_all the all value. * \arg FlagName_flag the flag to update. */ -#define FLAGS_ARGMATCH(FlagName, Args) \ +#define FLAGS_ARGMATCH(FlagName, Args) \ flags_argmatch ("--" #FlagName, FlagName ## _args, FlagName ## _types, \ - &FlagName ## _flag, Args) + FlagName ## _all, &FlagName ## _flag, Args) /*----------------------. @@ -175,10 +188,12 @@ static const char * const trace_args[] = "grammar - reading, reducing the grammar", "resource - memory consumption (where available)", "sets - grammar sets: firsts, nullable etc.", + "muscles - m4 definitions passed to the skeleton", "tools - m4 invocation", "m4 - m4 traces", "skeleton - skeleton postprocessing", "time - time consumption", + "ielr - IELR conversion", "all - all of the above", 0 }; @@ -193,10 +208,12 @@ static const int trace_types[] = trace_grammar, trace_resource, trace_sets, + trace_muscles, trace_tools, trace_m4, trace_skeleton, trace_time, + trace_ielr, trace_all }; @@ -213,7 +230,10 @@ static const char * const warnings_args[] = that argmatch_valid be more readable. */ "none - no warnings", "midrule-values - unset or unused midrule values", - "yacc - incompatibilities with POSIX YACC", + "yacc - incompatibilities with POSIX Yacc", + "conflicts-sr - S/R conflicts", + "conflicts-rr - R/R conflicts", + "other - all other warnings", "all - all of the above", "error - warnings are errors", 0 @@ -224,6 +244,9 @@ static const int warnings_types[] = warnings_none, warnings_midrule_values, warnings_yacc, + warnings_conflicts_sr, + warnings_conflicts_rr, + warnings_other, warnings_all, warnings_error }; @@ -242,17 +265,27 @@ usage (int status) { if (status != 0) fprintf (stderr, _("Try `%s --help' for more information.\n"), - program_name); + program_name); else { + /* For ../build-aux/cross-options.pl to work, use the format: + ^ -S, --long[=ARGS] (whitespace) + A --long option is required. + Otherwise, add exceptions to ../build-aux/cross-options.pl. */ + printf (_("Usage: %s [OPTION]... FILE\n"), program_name); fputs (_("\ -Generate LALR(1) and GLR parsers.\n\ +Generate a deterministic LR or generalized LR (GLR) parser employing\n\ +LALR(1), IELR(1), or canonical LR(1) parser tables. IELR(1) and\n\ +canonical LR(1) support is experimental.\n\ \n\ "), stdout); fputs (_("\ Mandatory arguments to long options are mandatory for short options too.\n\ +"), stdout); + fputs (_("\ +The same is true for optional arguments.\n\ "), stdout); fputs (_("\ @@ -263,25 +296,32 @@ Operation modes:\n\ --print-localedir output directory containing locale-dependent data\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\ + -W, --warnings[=CATEGORY] report the warnings falling in CATEGORY\n\ \n\ "), stdout); fputs (_("\ Parser:\n\ - -L, --language=LANGUAGE specify the output programming language\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\ - -k, --token-table include a table of token names\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\ + --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\ + -p, --name-prefix=PREFIX prepend PREFIX to the external symbols\n\ + -l, --no-lines don't generate `#line' directives\n\ + -k, --token-table include a table of token names\n\ \n\ "), stdout); + /* Keep -d and --defines separate so that ../build-aux/cross-options.pl + * won't assume that -d also takes an argument. */ fputs (_("\ Output:\n\ - -d, --defines[=FILE] also produce a header file\n\ + --defines[=FILE] also produce a header file\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\ @@ -296,7 +336,10 @@ Output:\n\ fputs (_("\ Warning categories include:\n\ `midrule-values' unset or unused midrule values\n\ - `yacc' incompatibilities with POSIX YACC\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\ @@ -332,19 +375,18 @@ version (void) continue. */ 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 (stdout, - _("Copyright (C) %d Free Software Foundation, Inc.\n"), - PACKAGE_COPYRIGHT_YEAR); + _("Copyright (C) %d Free Software Foundation, Inc.\n"), + PACKAGE_COPYRIGHT_YEAR); 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); + stdout); } @@ -353,7 +395,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ `--------------------------------------*/ void -skeleton_arg (char const *arg, int prio, location const *loc) +skeleton_arg (char const *arg, int prio, location loc) { if (prio < skeleton_prio) { @@ -361,18 +403,11 @@ skeleton_arg (char const *arg, int prio, location const *loc) skeleton = arg; } else if (prio == skeleton_prio) - { - char const *msg = - _("multiple skeleton declarations are invalid"); - if (loc) - complain_at (*loc, msg); - else - complain (msg); - } + complain_at (loc, _("multiple skeleton declarations are invalid")); } void -language_argmatch (char const *arg, int prio, location const *loc) +language_argmatch (char const *arg, int prio, location loc) { char const *msg; @@ -380,31 +415,52 @@ language_argmatch (char const *arg, int prio, location const *loc) { 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'"); + if (c_strcasecmp (arg, valid_languages[i].language) == 0) + { + language_prio = prio; + language = &valid_languages[i]; + return; + } + msg = _("%s: invalid language"); } else if (language_prio == prio) msg = _("multiple language declarations are invalid"); else return; - if (loc) - complain_at (*loc, msg, arg); - else - complain (msg, arg); + complain_at (loc, msg, quotearg_colon (arg)); } /*----------------------. | Process the options. | `----------------------*/ -/* Shorts options. */ -static char const short_options[] = "yvegxdhr:L:ltknVo:b:p:S:T::W"; +/* Shorts options. + Should be computed from long_options. */ +static char const short_options[] = + "D:" + "F:" + "L:" + "S:" + "T::" + "V" + "W::" + "b:" + "d" + "e" + "g::" + "h" + "k" + "l" + "n" + "o:" + "p:" + "r:" + "t" + "v" + "x::" + "y" + ; /* Values for long options that do not have single-letter equivalents. */ enum @@ -418,25 +474,25 @@ enum static struct option const long_options[] = { /* Operation modes. */ - { "help", no_argument, 0, 'h' }, - { "version", no_argument, 0, 'V' }, - { "print-localedir", no_argument, 0, PRINT_LOCALEDIR_OPTION }, - { "print-datadir", no_argument, 0, PRINT_DATADIR_OPTION }, + { "help", no_argument, 0, 'h' }, + { "version", no_argument, 0, 'V' }, + { "print-localedir", no_argument, 0, PRINT_LOCALEDIR_OPTION }, + { "print-datadir", no_argument, 0, PRINT_DATADIR_OPTION }, { "warnings", optional_argument, 0, 'W' }, /* Parser. */ - { "name-prefix", required_argument, 0, 'p' }, + { "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' }, + { "file-prefix", required_argument, 0, 'b' }, + { "output", required_argument, 0, 'o' }, + { "output-file", required_argument, 0, 'o' }, + { "graph", optional_argument, 0, 'g' }, { "xml", optional_argument, 0, 'x' }, - { "report", required_argument, 0, 'r' }, + { "report", required_argument, 0, 'r' }, { "report-file", required_argument, 0, REPORT_FILE_OPTION }, - { "verbose", no_argument, 0, 'v' }, + { "verbose", no_argument, 0, 'v' }, /* Hidden. */ { "trace", optional_argument, 0, 'T' }, @@ -446,11 +502,13 @@ static struct option const long_options[] = /* Operation modes. */ { "fixed-output-files", no_argument, 0, 'y' }, - { "yacc", no_argument, 0, 'y' }, + { "yacc", no_argument, 0, 'y' }, /* Parser. */ - { "debug", no_argument, 0, 't' }, - { "locations", no_argument, 0, LOCATIONS_OPTION }, + { "debug", no_argument, 0, 't' }, + { "define", required_argument, 0, 'D' }, + { "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' }, @@ -468,134 +526,183 @@ static struct option const long_options[] = # define AS_FILE_NAME(File) (File) #endif +/* Build a location for the current command line argument. */ +static +location +command_line_location (void) +{ + location res; + /* "" is used in GCC's messages about -D. */ + boundary_set (&res.start, uniqstr_new (""), optind, -1); + res.end = res.start; + return res; +} + + void getargs (int argc, char *argv[]) { int c; while ((c = getopt_long (argc, argv, short_options, long_options, NULL)) - != -1) + != -1) switch (c) { + /* ASCII Sorting for short options (i.e., upper case then + lower case), and then long-only options. */ + case 0: - /* Certain long options cause getopt_long to return 0. */ - break; + /* Certain long options cause getopt_long to return 0. */ + break; + + case 'D': /* -DNAME[=VALUE]. */ + case 'F': /* -FNAME[=VALUE]. */ + { + char* name = optarg; + char* value = strchr (optarg, '='); + if (value) + *value++ = 0; + muscle_percent_define_insert (name, command_line_location (), + value ? value : "", + c == 'D' ? MUSCLE_PERCENT_DEFINE_D + : MUSCLE_PERCENT_DEFINE_F); + } + break; - case 'b': - spec_file_prefix = AS_FILE_NAME (optarg); - break; + case 'I': + include = AS_FILE_NAME (optarg); + break; - case 'g': - /* Here, the -g and --graph=FILE options are differentiated. */ - graph_flag = true; - if (optarg) - spec_graph_file = xstrdup (AS_FILE_NAME (optarg)); - break; + case 'L': + language_argmatch (optarg, command_line_prio, + command_line_location ()); + break; - case 'x': - /* Here, the -x and --xml=FILE options are differentiated. */ - xml_flag = true; - if (optarg) - spec_xml_file = xstrdup (AS_FILE_NAME (optarg)); - break; + case 'S': + skeleton_arg (AS_FILE_NAME (optarg), command_line_prio, + command_line_location ()); + break; - case 'h': - usage (EXIT_SUCCESS); + case 'T': + FLAGS_ARGMATCH (trace, optarg); + break; - case 'L': - language_argmatch (optarg, 0, NULL); - break; + case 'V': + version (); + exit (EXIT_SUCCESS); - case 'S': - skeleton_arg (AS_FILE_NAME (optarg), 0, NULL); - break; + case 'W': + FLAGS_ARGMATCH (warnings, optarg); + break; - case 'I': - include = AS_FILE_NAME (optarg); - break; + case 'b': + spec_file_prefix = AS_FILE_NAME (optarg); + break; case 'd': - /* Here, the -d and --defines options are differentiated. */ - defines_flag = true; - if (optarg) - spec_defines_file = xstrdup (AS_FILE_NAME (optarg)); - break; + /* Here, the -d and --defines options are differentiated. */ + defines_flag = true; + if (optarg) + { + free (spec_defines_file); + spec_defines_file = xstrdup (AS_FILE_NAME (optarg)); + } + break; + + case 'g': + graph_flag = true; + if (optarg) + { + free (spec_graph_file); + spec_graph_file = xstrdup (AS_FILE_NAME (optarg)); + } + break; + + case 'h': + usage (EXIT_SUCCESS); case 'k': - token_table_flag = true; - break; + token_table_flag = true; + break; case 'l': - no_lines_flag = true; - break; + no_lines_flag = true; + break; case 'o': - spec_outfile = AS_FILE_NAME (optarg); - break; + spec_outfile = AS_FILE_NAME (optarg); + break; case 'p': - spec_name_prefix = optarg; - break; + spec_name_prefix = optarg; + break; case 'r': - FLAGS_ARGMATCH (report, optarg); - break; - - case REPORT_FILE_OPTION: - spec_verbose_file = xstrdup (AS_FILE_NAME (optarg)); - break; - - case 'T': - FLAGS_ARGMATCH (trace, optarg); - break; + FLAGS_ARGMATCH (report, optarg); + break; case 't': - debug_flag = true; - break; - - case 'V': - version (); - exit (EXIT_SUCCESS); + muscle_percent_define_insert ("parse.trace", + command_line_location (), "", + MUSCLE_PERCENT_DEFINE_D); + break; case 'v': - report_flag |= report_states; - break; + report_flag |= report_states; + break; - case 'y': - yacc_flag = true; - break; + case 'x': + xml_flag = true; + if (optarg) + { + free (spec_xml_file); + spec_xml_file = xstrdup (AS_FILE_NAME (optarg)); + } + break; - case 'W': - if (optarg) - FLAGS_ARGMATCH (warnings, optarg); - else - warnings_flag |= warnings_all; - break; + case 'y': + yacc_flag = true; + break; case LOCATIONS_OPTION: - locations_flag = true; - break; + muscle_percent_define_ensure ("locations", + command_line_location (), true); + break; case PRINT_LOCALEDIR_OPTION: - printf ("%s\n", LOCALEDIR); - exit (EXIT_SUCCESS); + printf ("%s\n", LOCALEDIR); + exit (EXIT_SUCCESS); case PRINT_DATADIR_OPTION: - printf ("%s\n", compute_pkgdatadir ()); - exit (EXIT_SUCCESS); + printf ("%s\n", pkgdatadir ()); + exit (EXIT_SUCCESS); + + case REPORT_FILE_OPTION: + free (spec_verbose_file); + spec_verbose_file = xstrdup (AS_FILE_NAME (optarg)); + break; default: - usage (EXIT_FAILURE); + usage (EXIT_FAILURE); } if (argc - optind != 1) { if (argc - optind < 1) - error (0, 0, _("missing operand after `%s'"), argv[argc - 1]); + error (0, 0, _("%s: missing operand"), quotearg_colon (argv[argc - 1])); else - error (0, 0, _("extra operand `%s'"), argv[optind + 1]); + error (0, 0, _("extra operand %s"), quote (argv[optind + 1])); usage (EXIT_FAILURE); } current_file = grammar_file = uniqstr_new (argv[optind]); + MUSCLE_INSERT_C_STRING ("file_name", grammar_file); +} + +void +tr (char *s, char from, char to) +{ + for (; *s; s++) + if (*s == from) + *s = to; }