src/scan-code.h

   1 /* Bison Action Scanner
   2
   3    Copyright (C) 2006 Free Software Foundation, Inc.
   4
   5    This file is part of Bison, the GNU Compiler Compiler.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20    02110-1301  USA
  21 */
  22
  23 #ifndef SCAN_CODE_H_
  24 # define SCAN_CODE_H_
  25
  26 # include "location.h"
  27 # include "symlist.h"
  28
  29 /* Keeps track of the maximum number of semantic values to the left of
  30    a handle (those referenced by $0, $-1, etc.) are required by the
  31    semantic actions of this grammar. */
  32 extern int max_left_semantic_context;
  33
  34 void code_scanner_free (void);
  35
  36 /* The action of the rule R contains $$, $1 etc. referring to the values
  37    of the rule R. */
  38 char const *translate_rule_action (symbol_list *r);
  39
  40 /* The action A refers to $$ and @$ only, referring to a symbol. */
  41 char const *translate_symbol_action (char const *a, location l);
  42
  43 /* The action contains no special escapes, just protect M4 special
  44    symbols.  */
  45 char const *translate_code (char const *a, location l);
  46
  47 #endif /* !SCAN_CODE_H_ */