src/muscle_tab.c

   1 /* Macro table manager for Bison,
   2    Copyright 2001 Free Software Foundation, Inc.
   3
   4    This file is part of Bison, the GNU Compiler Compiler.
   5
   6    Bison is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    Bison is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with Bison; see the file COPYING.  If not, write to
  18    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include "system.h"
  22 #include "hash.h"
  23 #include "files.h"
  24 #include "muscle_tab.h"
  25 #include "getargs.h"
  26
  27 struct hash_table muscle_table;
  28
  29 static unsigned long
  30 mhash1 (const void *item)
  31 {
  32   return_STRING_HASH_1 (((const muscle_entry_t *) item)->key);
  33 }
  34
  35 static unsigned long
  36 mhash2 (const void *item)
  37 {
  38   return_STRING_HASH_2 (((const muscle_entry_t *) item)->key);
  39 }
  40
  41 static int
  42 mcmp (const void *x, const void *y)
  43 {
  44   return strcmp (((const muscle_entry_t*) x)->key,
  45                  ((const muscle_entry_t *) y)->key);
  46 }
  47
  48 void
  49 muscle_init (void)
  50 {
  51   hash_init (&muscle_table, MTABSIZE, &mhash1, &mhash2, &mcmp);
  52
  53   /* Version and input file.  */
  54   muscle_insert ("version", VERSION);
  55   muscle_insert ("filename", infile);
  56
  57   /* Types.  */
  58   muscle_insert ("stype", "int");
  59   muscle_insert ("ltype", "yyltype");
  60
  61   /* Tokens.  */
  62   muscle_insert ("tokendef", NULL);
  63
  64   /* Tables.  */
  65   muscle_insert ("rhs", NULL);
  66   muscle_insert ("pact", NULL);
  67   muscle_insert ("prhs", NULL);
  68   muscle_insert ("stos", NULL);
  69   muscle_insert ("check", NULL);
  70   muscle_insert ("pgoto", NULL);
  71   muscle_insert ("table", NULL);
  72   muscle_insert ("tname", NULL);
  73   muscle_insert ("defact", NULL);
  74   muscle_insert ("toknum", NULL);
  75   muscle_insert ("defgoto", NULL);
  76   muscle_insert ("translate", NULL);
  77
  78   /* Various macros.  */
  79   muscle_insert ("flag", NULL);
  80   muscle_insert ("last", NULL);
  81   muscle_insert ("pure", NULL);
  82   muscle_insert ("nsym", NULL);
  83   muscle_insert ("debug", NULL);
  84   muscle_insert ("final", NULL);
  85   muscle_insert ("maxtok", NULL);
  86   muscle_insert ("ntbase", NULL);
  87   muscle_insert ("error-verbose", NULL);
  88   muscle_insert ("prefix", "yy");
  89   /* Default #line formatting.  */
  90   muscle_insert ("linef", "#line %d %s\n");
  91
  92   /* No parser macros.  */
  93   muscle_insert ("nnts", NULL);
  94   muscle_insert ("nrules", NULL);
  95   muscle_insert ("nstates", NULL);
  96   muscle_insert ("ntokens", NULL);
  97
  98   /* Stack parameters.  */
  99   muscle_insert ("maxdepth", "10000");
 100   muscle_insert ("initdepth", "200");
 101
 102   /* C++ macros.  */
 103   muscle_insert ("name", "Parser");
 104 }
 105
 106 void
 107 muscle_insert (const char *key, const char *value)
 108 {
 109   muscle_entry_t *pair = XMALLOC (muscle_entry_t, 1);
 110   pair->key = key;
 111   pair->value = value;
 112   hash_insert (&muscle_table, pair);
 113 }
 114
 115 const char*
 116 muscle_find (const char *key)
 117 {
 118   muscle_entry_t pair = { key, 0 };
 119   muscle_entry_t *result = hash_find_item (&muscle_table, &pair);
 120   return result ? result->value : 0;
 121 }