X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/b931235eb9e55277e0147443f916c0f73ad697c4..6130b75585cad5f4bb2ee78875a0bfe109b2a3e3:/src/getargs.c diff --git a/src/getargs.c b/src/getargs.c index 0a7f3727..cff6ff3f 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -1,31 +1,32 @@ /* 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, 2008 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. - Bison is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. - Bison is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. 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., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301, USA. */ + along with this program. If not, see . */ #include #include "system.h" -#include "revision.h" +#include "output.h" #include +#include +#include #include +#include /* Hack to get to declare getopt with a prototype. */ #if lint && ! defined __GNU_LIBRARY__ @@ -43,14 +44,15 @@ #include "complain.h" #include "files.h" #include "getargs.h" +#include "muscle_tab.h" #include "uniqstr.h" bool debug_flag; bool defines_flag; bool graph_flag; +bool xml_flag; bool locations_flag; bool no_lines_flag; -bool no_parser_flag; bool token_table_flag; bool yacc_flag; /* for -y */ @@ -58,15 +60,113 @@ bool error_verbose = false; bool nondeterministic_parser = false; bool glr_parser = false; -bool pure_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 } +}; + +int skeleton_prio = default_prio; const char *skeleton = NULL; +int language_prio = default_prio; +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. + * \param keys array of valid subarguments. + * \param values array of corresponding (int) values. + * \param flags the flags to update + * \param args comma separated list of effective subarguments to decode. + * If 0, then activate all the flags. + * + * If VALUE != 0 then KEY sets flags and no-KEY clears them. + * If VALUE == 0 then KEY clears all flags and no-KEY sets all flags. + * 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) +{ + if (args) + { + args = strtok (args, ","); + while (args) + { + int no = strncmp (args, "no-", 3) == 0 ? 3 : 0; + int value = XARGMATCH (option, args + no, keys, values); + if (value == 0) + if (no) + *flags = ~0; + else + *flags = 0; + else + if (no) + *flags &= ~value; + else + *flags |= value; + args = strtok (NULL, ","); + } + } + else + *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. | +`----------------------*/ + +static const char * const report_args[] = +{ + /* In a series of synonyms, present the most meaningful first, so + that argmatch_valid be more readable. */ + "none", + "state", "states", + "itemset", "itemsets", + "lookahead", "lookaheads", "look-ahead", + "solved", + "all", + 0 +}; + +static const int report_types[] = +{ + report_none, + report_states, report_states, + report_states | report_itemsets, report_states | report_itemsets, + 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); /*---------------------. @@ -77,14 +177,15 @@ 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", + "none - no traces", "scan - grammar scanner traces", "parse - grammar parser traces", - "automaton - contruction of the automaton", + "automaton - construction of the automaton", "bitsets - use of bitsets", - "grammar - reading, reducing of the grammar", + "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", @@ -103,6 +204,7 @@ static const int trace_types[] = trace_grammar, trace_resource, trace_sets, + trace_muscles, trace_tools, trace_m4, trace_skeleton, @@ -112,74 +214,33 @@ static const int trace_types[] = ARGMATCH_VERIFY (trace_args, trace_types); -static void -trace_argmatch (char *args) -{ - if (args) - { - args = strtok (args, ","); - do - { - int trace = XARGMATCH ("--trace", args, - trace_args, trace_types); - if (trace == trace_none) - trace_flag = trace_none; - else - trace_flag |= trace; - } - while ((args = strtok (NULL, ","))); - } - else - trace_flag = trace_all; -} +/*------------------------. +| --warnings's handling. | +`------------------------*/ -/*----------------------. -| --report's handling. | -`----------------------*/ - -static const char * const report_args[] = +static const char * const warnings_args[] = { /* In a series of synonyms, present the most meaningful first, so that argmatch_valid be more readable. */ - "none", - "state", "states", - "itemset", "itemsets", - "lookahead", "lookaheads", "look-ahead", - "solved", - "all", + "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 report_types[] = +static const int warnings_types[] = { - report_none, - report_states, report_states, - report_states | report_itemsets, report_states | report_itemsets, - report_states | report_lookahead_tokens, - report_states | report_lookahead_tokens, - report_states | report_lookahead_tokens, - report_states | report_solved_conflicts, - report_all + warnings_none, + warnings_midrule_values, + warnings_yacc, + warnings_all, + warnings_error }; -ARGMATCH_VERIFY (report_args, report_types); - -static void -report_argmatch (char *args) -{ - 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, ","))); -} +ARGMATCH_VERIFY (warnings_args, warnings_types); /*-------------------------------------------. @@ -196,52 +257,77 @@ usage (int status) program_name); else { - /* Some efforts were made to ease the translators' task, please - continue. */ - fputs (_("\ -GNU bison generates LALR(1) and GLR parsers.\n"), stdout); - putc ('\n', stdout); + /* 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. */ - fprintf (stdout, _("\ -Usage: %s [OPTION]... FILE\n"), program_name); - putc ('\n', stdout); + printf (_("Usage: %s [OPTION]... FILE\n"), program_name); + fputs (_("\ +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 (_("\ +The same is true for optional arguments.\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); + --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\ +\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 debugging\n\ - --locations enable locations computation\n\ + --locations enable location support\n\ + -D, --define=NAME[=VALUE] same as `%define NAME \"VALUE\"'\n\ -p, --name-prefix=PREFIX prepend PREFIX to the external symbols\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); + /* 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 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\ -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[=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); + + fputs (_("\ +Warning categories include:\n\ + `midrule-values' unset or unused midrule values\n\ + `yacc' incompatibilities with POSIX YACC\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\ "), stdout); - putc ('\n', stdout); fputs (_("\ THINGS is a list of comma separated words that can include:\n\ @@ -252,10 +338,8 @@ 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 .\n"), stdout); + printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT); } exit (status); @@ -273,12 +357,12 @@ 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"), 2006); + _("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\ @@ -288,26 +372,98 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ } +/*-------------------------------------. +| --skeleton and --language handling. | +`--------------------------------------*/ + +void +skeleton_arg (char const *arg, int prio, location loc) +{ + if (prio < skeleton_prio) + { + skeleton_prio = prio; + skeleton = arg; + } + else if (prio == skeleton_prio) + { + char const *msg = + _("multiple skeleton declarations are invalid"); + complain_at (loc, msg); + } +} + +void +language_argmatch (char const *arg, int prio, location 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; + + complain_at (loc, msg, arg); +} + /*----------------------. | Process the options. | `----------------------*/ -/* Shorts options. */ -static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::"; +/* Shorts options. + Should be computed from long_options. */ +static char const short_options[] = + "D:" + "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 { LOCATIONS_OPTION = CHAR_MAX + 1, - PRINT_LOCALEDIR_OPTION + PRINT_LOCALEDIR_OPTION, + PRINT_DATADIR_OPTION, + REPORT_FILE_OPTION }; 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 }, + { "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' }, @@ -318,7 +474,9 @@ static struct option const long_options[] = { "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-file", required_argument, 0, REPORT_FILE_OPTION }, { "verbose", no_argument, 0, 'v' }, /* Hidden. */ @@ -333,11 +491,12 @@ static struct option const long_options[] = /* Parser. */ { "debug", no_argument, 0, 't' }, + { "define", required_argument, 0, 'D' }, { "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} @@ -351,6 +510,19 @@ 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[]) { @@ -360,89 +532,125 @@ getargs (int argc, char *argv[]) != -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; - case 'y': - yacc_flag = true; + case 'D': /* -DNAME[=VALUE]. */ + { + char* name = optarg; + char* value = strchr (optarg, '='); + if (value) + *value++ = 0; + muscle_percent_define_insert (name, command_line_location (), + value ? value : ""); + } break; - case 'h': - usage (EXIT_SUCCESS); + case 'I': + include = AS_FILE_NAME (optarg); + break; + + case 'L': + language_argmatch (optarg, command_line_prio, + command_line_location ()); + break; + + case 'S': + skeleton_arg (AS_FILE_NAME (optarg), command_line_prio, + command_line_location ()); + break; + + case 'T': + FLAGS_ARGMATCH (trace, optarg); + break; case 'V': version (); exit (EXIT_SUCCESS); - case PRINT_LOCALEDIR_OPTION: - printf ("%s\n", LOCALEDIR); - exit (EXIT_SUCCESS); - - case 'g': - /* Here, the -g and --graph=FILE options are differentiated. */ - graph_flag = true; + case 'W': if (optarg) - spec_graph_file = AS_FILE_NAME (optarg); + FLAGS_ARGMATCH (warnings, optarg); + else + warnings_flag |= warnings_all; break; - case 'v': - report_flag |= report_states; + case 'b': + spec_file_prefix = AS_FILE_NAME (optarg); break; - case 'S': - skeleton = 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; - case 'I': - include = AS_FILE_NAME (optarg); + case 'g': + graph_flag = true; + if (optarg) + spec_graph_file = xstrdup (AS_FILE_NAME (optarg)); break; - case 'd': - /* Here, the -d and --defines options are differentiated. */ - defines_flag = true; - if (optarg) - spec_defines_file = AS_FILE_NAME (optarg); + case 'h': + usage (EXIT_SUCCESS); + + case 'k': + token_table_flag = true; break; case 'l': no_lines_flag = true; break; - case LOCATIONS_OPTION: - locations_flag = true; + case 'o': + spec_outfile = AS_FILE_NAME (optarg); break; - case 'k': - token_table_flag = true; + case 'p': + spec_name_prefix = optarg; break; - case 'n': - no_parser_flag = true; + case 'r': + FLAGS_ARGMATCH (report, optarg); break; case 't': debug_flag = true; break; - case 'o': - spec_outfile = AS_FILE_NAME (optarg); + case 'v': + report_flag |= report_states; break; - case 'b': - spec_file_prefix = AS_FILE_NAME (optarg); + case 'x': + xml_flag = true; + if (optarg) + spec_xml_file = xstrdup (AS_FILE_NAME (optarg)); break; - case 'p': - spec_name_prefix = optarg; + case 'y': + yacc_flag = true; break; - case 'r': - report_argmatch (optarg); + case LOCATIONS_OPTION: + locations_flag = true; break; - case 'T': - trace_argmatch (optarg); + case PRINT_LOCALEDIR_OPTION: + printf ("%s\n", LOCALEDIR); + exit (EXIT_SUCCESS); + + case PRINT_DATADIR_OPTION: + printf ("%s\n", compute_pkgdatadir ()); + exit (EXIT_SUCCESS); + + case REPORT_FILE_OPTION: + spec_verbose_file = xstrdup (AS_FILE_NAME (optarg)); break; default: @@ -459,4 +667,5 @@ getargs (int argc, char *argv[]) } current_file = grammar_file = uniqstr_new (argv[optind]); + MUSCLE_INSERT_C_STRING ("file_name", grammar_file); }