src/getargs.h

   1 /* Parse command line arguments for bison.
   2
   3    Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
   4    2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
   5
   6    This file is part of Bison, the GNU Compiler Compiler.
   7
   8    This program is free software: you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation, either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GETARGS_H_
  22 # define GETARGS_H_
  23
  24 #include "location.h"
  25
  26 extern char *program_name;
  27 enum { command_line_prio, grammar_prio, default_prio };
  28
  29 /* flags set by % directives */
  30
  31 /* for -S */
  32 extern char const *skeleton;
  33 extern int skeleton_prio;
  34
  35 /* for -I */
  36 extern char const *include;
  37
  38 extern bool defines_flag;               /* for -d */
  39 extern bool graph_flag;                 /* for -g */
  40 extern bool xml_flag;                   /* for -x */
  41 extern bool locations_flag;
  42 extern bool no_lines_flag;              /* for -l */
  43 extern bool token_table_flag;           /* for -k */
  44 extern bool yacc_flag;                  /* for -y */
  45
  46
  47 /* GLR_PARSER is true if the input file says to use the GLR
  48    (Generalized LR) parser, and to output some additional information
  49    used by the GLR algorithm.  */
  50
  51 extern bool glr_parser;
  52
  53 /* NONDETERMINISTIC_PARSER is true iff conflicts are accepted.  This
  54    is used by the GLR parser, and might be used in BackTracking
  55    parsers too.  */
  56
  57 extern bool nondeterministic_parser;
  58
  59
  60 /* --language.  */
  61 struct bison_language
  62 {
  63   char language[sizeof "Java"];
  64   char skeleton[sizeof "java-skel.m4"];
  65   char src_extension[sizeof ".java"];
  66   char header_extension[sizeof ".java"];
  67   bool add_tab;
  68 };
  69
  70 extern int language_prio;
  71 extern struct bison_language const *language;
  72
  73 /*-----------.
  74 | --report.  |
  75 `-----------*/
  76
  77 enum report
  78   {
  79     report_none             = 0,
  80     report_states           = 1 << 0,
  81     report_itemsets         = 1 << 1,
  82     report_lookahead_tokens = 1 << 2,
  83     report_solved_conflicts = 1 << 3,
  84     report_all              = ~0
  85   };
  86 /** What appears in the *.output file.  */
  87 extern int report_flag;
  88
  89 /*----------.
  90 | --trace.  |
  91 `----------*/
  92 enum trace
  93   {
  94     trace_none      = 0,       /**< No traces. */
  95     trace_scan      = 1 << 0,  /**< Grammar scanner traces. */
  96     trace_parse     = 1 << 1,  /**< Grammar parser traces. */
  97     trace_resource  = 1 << 2,  /**< Memory allocation. */
  98     trace_sets      = 1 << 3,  /**< Grammar sets: firsts, nullable etc. */
  99     trace_bitsets   = 1 << 4,  /**< Use of bitsets. */
 100     trace_tools     = 1 << 5,  /**< m4 invocation. */
 101     trace_automaton = 1 << 6,  /**< Construction of the automaton. */
 102     trace_grammar   = 1 << 7,  /**< Reading, reducing the grammar. */
 103     trace_time      = 1 << 8,  /**< Time consumption. */
 104     trace_skeleton  = 1 << 9,  /**< Skeleton postprocessing. */
 105     trace_m4        = 1 << 10, /**< M4 traces. */
 106     trace_muscles   = 1 << 11, /**< M4 definitions of the muscles. */
 107     trace_all       = ~0       /**< All of the above.  */
 108   };
 109 /** What debug items bison displays during its run.  */
 110 extern int trace_flag;
 111
 112 /*-------------.
 113 | --warnings.  |
 114 `-------------*/
 115
 116 enum warnings
 117   {
 118     warnings_none             = 0,      /**< Issue no warnings.  */
 119     warnings_error            = 1 << 0, /**< Warnings are treated as errors.  */
 120     warnings_midrule_values   = 1 << 1, /**< Unset or unused midrule values.  */
 121     warnings_yacc             = 1 << 2, /**< POSIXME.  */
 122     warnings_all              = ~warnings_error /**< All above warnings.  */
 123   };
 124 /** What warnings are issued.  */
 125 extern int warnings_flag;
 126
 127
 128 /** Process the command line arguments.
 129  *
 130  *  \param argc   size of \a argv
 131  *  \param argv   list of arguments.
 132  */
 133 void getargs (int argc, char *argv[]);
 134
 135 /* Used by parse-gram.y.  */
 136 void language_argmatch (char const *arg, int prio, location loc);
 137 void skeleton_arg (const char *arg, int prio, location loc);
 138
 139 #endif /* !GETARGS_H_ */