X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7891a7c4493684272f5db705bcb115404f52e6c1..ac564be451362c738a89ff742b84408cfd2e704b:/src/getargs.c diff --git a/src/getargs.c b/src/getargs.c index 3895d3fa..177255e7 100644 --- a/src/getargs.c +++ b/src/getargs.c @@ -25,6 +25,7 @@ #include "revision.h" #include +#include #include /* Hack to get to declare getopt with a prototype. */ @@ -59,9 +60,11 @@ bool error_verbose = false; bool nondeterministic_parser = false; bool glr_parser = false; bool pure_parser = false; +bool push_parser = false; int report_flag = report_none; int trace_flag = trace_none; +int warnings_flag = warnings_none; const char *skeleton = NULL; const char *include = NULL; @@ -69,6 +72,85 @@ const char *include = NULL; extern char *program_name; +/** Decode an option's set of keys. + * + * \param option option being decoded. + * \paran keys array of valid subarguments. + * \param values array of corresponding (int) values. + * \param flag 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 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 value = XARGMATCH (option, args, keys, values); + if (value == 0) + *flags = 0; + 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); + + /*---------------------. | --trace's handling. | `---------------------*/ @@ -77,12 +159,12 @@ 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.", "tools - m4 invocation", @@ -112,74 +194,33 @@ 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", - "look-ahead", "lookahead", "lookaheads", - "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_look_ahead_tokens, - report_states | report_look_ahead_tokens, - report_states | report_look_ahead_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); /*-------------------------------------------. @@ -196,29 +237,25 @@ usage (int status) 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 parsers for LALR(1) grammars.\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\ @@ -229,8 +266,8 @@ 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\ @@ -239,23 +276,21 @@ 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\ `state' describe the states\n\ `itemset' complete the core item sets with their closure\n\ - `look-ahead' explicitly associate look-ahead tokens to items\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 (_("\ -Report bugs to .\n"), stdout); + printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT); } exit (status); @@ -293,7 +328,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ `----------------------*/ /* Shorts options. */ -static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::"; +static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::W"; /* Values for long options that do not have single-letter equivalents. */ enum @@ -305,9 +340,10 @@ 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 }, + { "help", no_argument, 0, 'h' }, + { "version", no_argument, 0, 'V' }, + { "print-localedir", no_argument, 0, PRINT_LOCALEDIR_OPTION }, + { "warnings", optional_argument, 0, 'W' }, /* Parser. */ { "name-prefix", required_argument, 0, 'p' }, @@ -364,21 +400,10 @@ getargs (int argc, char *argv[]) /* Certain long options cause getopt_long to return 0. */ break; - case 'y': - yacc_flag = true; + case 'b': + spec_file_prefix = AS_FILE_NAME (optarg); break; - case 'h': - usage (EXIT_SUCCESS); - - 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; @@ -386,9 +411,8 @@ getargs (int argc, char *argv[]) spec_graph_file = AS_FILE_NAME (optarg); break; - case 'v': - report_flag |= report_states; - break; + case 'h': + usage (EXIT_SUCCESS); case 'S': skeleton = AS_FILE_NAME (optarg); @@ -405,46 +429,65 @@ getargs (int argc, char *argv[]) spec_defines_file = AS_FILE_NAME (optarg); break; + case 'k': + token_table_flag = true; + break; + case 'l': no_lines_flag = true; break; - case LOCATIONS_OPTION: - locations_flag = true; + case 'n': + no_parser_flag = true; break; - case 'k': - token_table_flag = true; + case 'o': + spec_outfile = AS_FILE_NAME (optarg); break; - case 'n': - no_parser_flag = true; + case 'p': + spec_name_prefix = optarg; + break; + + case 'r': + FLAGS_ARGMATCH (report, optarg); + break; + + case 'T': + FLAGS_ARGMATCH (trace, optarg); break; case 't': debug_flag = true; break; - case 'o': - spec_outfile = AS_FILE_NAME (optarg); - break; + case 'V': + version (); + exit (EXIT_SUCCESS); - case 'b': - spec_file_prefix = AS_FILE_NAME (optarg); + case 'v': + report_flag |= report_states; break; - case 'p': - spec_name_prefix = optarg; + case 'y': + yacc_flag = true; break; - case 'r': - report_argmatch (optarg); + case 'W': + if (optarg) + FLAGS_ARGMATCH (warnings, optarg); + else + warnings_flag |= warnings_all; break; - case 'T': - trace_argmatch (optarg); + case LOCATIONS_OPTION: + locations_flag = true; break; + case PRINT_LOCALEDIR_OPTION: + printf ("%s\n", LOCALEDIR); + exit (EXIT_SUCCESS); + default: usage (EXIT_FAILURE); }