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128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/* Macro table manager for Bison,
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Copyright 1984, 1989, 2000 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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Bison is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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Bison is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bison; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <string.h>
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#include "system.h"
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#include "hash.h"
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#include "files.h"
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#include "macrotab.h"
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struct hash_table macro_table;
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static unsigned long
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mhash1 (const void* item)
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{
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return_STRING_HASH_1 (((macro_entry_t*) item)->key);
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}
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static unsigned long
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mhash2 (const void* item)
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{
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return_STRING_HASH_2 (((macro_entry_t*) item)->key);
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}
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static int
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mcmp (const void* x, const void* y)
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{
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return strcmp (((macro_entry_t*) x)->key, ((macro_entry_t*) y)->key);
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}
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void
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macro_init (void)
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{
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hash_init (¯o_table, MTABSIZE, &mhash1, &mhash2, &mcmp);
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/* Version and input file. */
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macro_insert ("version", VERSION);
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macro_insert ("filename", "a.y");
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/* Types. */
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macro_insert ("stype", "int");
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macro_insert ("ltype", "yyltype");
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/* Tokens. */
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macro_insert ("tokendef", "");
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/* Tables. */
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macro_insert ("rhs", "0");
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macro_insert ("pact", "0");
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macro_insert ("prhs", "0");
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macro_insert ("stos", "0");
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macro_insert ("check", "0");
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macro_insert ("pgoto", "0");
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macro_insert ("table", "0");
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macro_insert ("tname", "0");
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macro_insert ("defact", "0");
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macro_insert ("toknum", "0");
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macro_insert ("defgoto", "0");
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macro_insert ("translate", "0");
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/* Various macros. */
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macro_insert ("flag", "0");
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macro_insert ("last", "0");
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macro_insert ("pure", "0");
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macro_insert ("nsym", "0");
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macro_insert ("debug", "0");
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macro_insert ("final", "0");
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macro_insert ("maxtok", "0");
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macro_insert ("ntbase", "0");
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macro_insert ("verbose", "0");
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/* Variable prefix names. */
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macro_insert ("yyparse", "yyparse");
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macro_insert ("yylex", "yylex");
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macro_insert ("yyerror", "yyerror");
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macro_insert ("yylval", "yylval");
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macro_insert ("yychar", "yychar");
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macro_insert ("yydebug", "yydebug");
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macro_insert ("yynerrs", "yynerrs");
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/* No parser macros. */
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macro_insert ("nnts", "0");
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macro_insert ("nrules", "0");
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macro_insert ("nstates", "0");
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macro_insert ("ntokens", "0");
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/* Stack parameters. */
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macro_insert ("maxdepth", "10000");
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macro_insert ("initdepth", "200");
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/* C++ macros. */
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macro_insert ("name", "Parser");
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}
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void
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macro_insert (char* key, char* value)
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{
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macro_entry_t* pair = (macro_entry_t*) xmalloc (sizeof (macro_entry_t));
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pair->key = key;
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pair->value = value;
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hash_insert (¯o_table, pair);
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}
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char*
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macro_find (char* key)
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{
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macro_entry_t pair = { key, 0 };
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macro_entry_t* result = hash_find_item (¯o_table, &pair);
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return result ? result->value : 0;
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}
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