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/*
 *  File:       cw_re_node_builder.h
 *              $Id: cw_re_node_builder.h,v 1.3 2003/06/04 10:18:37 alec Exp $
 *
 *  Author:     Alec Panoviciu (alecu@email.com)
 *
 *  Comments: this is the "C" layer between the YACC generated code and the
 *            IReNodeBuilder class.
 *
 *  Revision history:
 *
 *  $Log: cw_re_node_builder.h,v $
 *  Revision 1.3  2003/06/04 10:18:37  alec
 *  0.0.6
 *
 *  Revision 1.2  2002/04/29 17:55:41  alec
 *  regexps almost done
 *
 *  Revision 1.1  2002/04/29 09:40:01  alec
 *  *** empty log message ***
 *
 */


/* 
  Copyright (C) 2002 Alexandru Panoviciu (alecu@email.com)

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#ifndef __CW_RE_NODE_BUILDER_H__
#define __CW_RE_NODE_BUILDER_H__


#if defined __cplusplus

class IReNodeBuilder;

/**
 * \ingroup cw_re_node_builder
 *
 * This will point to the instance of the IReNodeBuilder object whose methods
 * should actually be called from the parser C code. It is initialized by the
 * LexYaccParser before the paring process starts.
 */
extern IReNodeBuilder *cw_reNodeBuilder;

#define CLINK extern "C"

#else

#define CLINK

#endif

#include "cw_misc.h"

/**
 * \defgroup cw_re_node_builder IReNodeBuilder C wrapper
 *
 * These are the wrapper functions that get called from the C parser code. Each
 * of them will call the correspomding method of the IReNodeBuilder instance
 * pointed to by cw_reNodeBuilder, after performing the necessary argument
 * conversions into their C++ conterparts.
 *
 * @{
 */
CLINK void* IReNodeBuilder_createOrNode (void *pre, void *post);

CLINK void* IReNodeBuilder_createCatNode (void *pre, void *post);

CLINK void* IReNodeBuilder_createPlusNode (void *in);

CLINK void* IReNodeBuilder_createOptionalNode (void *in);

CLINK void* IReNodeBuilder_createStarNode (void *in);

CLINK void* IReNodeBuilder_createStringLiteralNode (char *s, int len);

CLINK void* IReNodeBuilder_createCharListNode (int negated, CwCharClassList chars);

/* @} */

#endif /* #ifndef __CW_RE_NODE_BUILDER_H__ */