src/muscle_tab.c

   1 /* Macro table manager for Bison,
   2    Copyright 1984, 1989, 2000 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 <string.h>
  22
  23 #include "xalloc.h"
  24 #include "system.h"
  25 #include "hash.h"
  26 #include "files.h"
  27 #include "muscle_tab.h"
  28 #include "getargs.h"
  29
  30 struct hash_table muscle_table;
  31
  32 static unsigned long
  33 mhash1 (const void *item)
  34 {
  35   return_STRING_HASH_1 (((muscle_entry_t *) item)->key);
  36 }
  37
  38 static unsigned long
  39 mhash2 (const void *item)
  40 {
  41   return_STRING_HASH_2 (((muscle_entry_t *) item)->key);
  42 }
  43
  44 static int
  45 mcmp (const void *x, const void *y)
  46 {
  47   return strcmp (((muscle_entry_t*) x)->key, ((muscle_entry_t *) y)->key);
  48 }
  49
  50 void
  51 muscle_init (void)
  52 {
  53   hash_init (&muscle_table, MTABSIZE, &mhash1, &mhash2, &mcmp);
  54
  55   /* Version and input file.  */
  56   muscle_insert ("version", VERSION);
  57   muscle_insert ("filename", infile);
  58
  59   /* Types.  */
  60   muscle_insert ("stype", "int");
  61   muscle_insert ("ltype", "yyltype");
  62
  63   /* Tokens.  */
  64   muscle_insert ("tokendef", "");
  65
  66   /* Tables.  */
  67   muscle_insert ("rhs", "0");
  68   muscle_insert ("pact", "0");
  69   muscle_insert ("prhs", "0");
  70   muscle_insert ("stos", "0");
  71   muscle_insert ("check", "0");
  72   muscle_insert ("pgoto", "0");
  73   muscle_insert ("table", "0");
  74   muscle_insert ("tname", "0");
  75   muscle_insert ("defact", "0");
  76   muscle_insert ("toknum", "0");
  77   muscle_insert ("defgoto", "0");
  78   muscle_insert ("translate", "0");
  79
  80   /* Various macros.  */
  81   muscle_insert ("flag", "0");
  82   muscle_insert ("last", "0");
  83   muscle_insert ("pure", "0");
  84   muscle_insert ("nsym", "0");
  85   muscle_insert ("debug", "0");
  86   muscle_insert ("final", "0");
  87   muscle_insert ("maxtok", "0");
  88   muscle_insert ("ntbase", "0");
  89   muscle_insert ("error_verbose", "0");
  90   muscle_insert ("prefix", "yy");
  91   /* Default #line formatting.  */
  92   muscle_insert ("linef", "#line %d %s\n");
  93
  94   /* No parser macros.  */
  95   muscle_insert ("nnts", "0");
  96   muscle_insert ("nrules", "0");
  97   muscle_insert ("nstates", "0");
  98   muscle_insert ("ntokens", "0");
  99
 100   /* Stack parameters.  */
 101   muscle_insert ("maxdepth", "10000");
 102   muscle_insert ("initdepth", "200");
 103
 104   /* C++ macros.  */
 105   muscle_insert ("name", "Parser");
 106 }
 107
 108 void
 109 muscle_insert (const char *key, const char *value)
 110 {
 111   muscle_entry_t *pair = XMALLOC (muscle_entry_t, 1);
 112   pair->key = key;
 113   pair->value = value;
 114   hash_insert (&muscle_table, pair);
 115 }
 116
 117 const char*
 118 muscle_find (const char *key)
 119 {
 120   muscle_entry_t pair = { key, 0 };
 121   muscle_entry_t *result = hash_find_item (&muscle_table, &pair);
 122   return result ? result->value : 0;
 123 }