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      1 /** \file
      2  * Base implementation of an ANTLR3 parser.
      3  *
      4  *
      5  */
      6 #ifndef	_ANTLR3_PARSER_H
      7 #define	_ANTLR3_PARSER_H
      8 
      9 // [The "BSD licence"]
     10 // Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC
     11 // http://www.temporal-wave.com
     12 // http://www.linkedin.com/in/jimidle
     13 //
     14 // All rights reserved.
     15 //
     16 // Redistribution and use in source and binary forms, with or without
     17 // modification, are permitted provided that the following conditions
     18 // are met:
     19 // 1. Redistributions of source code must retain the above copyright
     20 //    notice, this list of conditions and the following disclaimer.
     21 // 2. Redistributions in binary form must reproduce the above copyright
     22 //    notice, this list of conditions and the following disclaimer in the
     23 //    documentation and/or other materials provided with the distribution.
     24 // 3. The name of the author may not be used to endorse or promote products
     25 //    derived from this software without specific prior written permission.
     26 //
     27 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     28 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     29 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     30 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     31 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     32 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     33 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     34 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     35 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     36 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     37 
     38 #include    <antlr3defs.h>
     39 #include    <antlr3baserecognizer.h>
     40 
     41 #ifdef __cplusplus
     42 extern "C" {
     43 #endif
     44 
     45 /** This is the main interface for an ANTLR3 parser.
     46  */
     47 typedef	struct ANTLR3_PARSER_struct
     48 {
     49     /** All superstructure implementers of this interface require a pointer to their selves,
     50      *  which they can reference using the super pointer here.
     51      */
     52     void			* super;
     53 
     54     /** A pointer to the base recognizer, where most of the parser functions actually
     55      *  live because they are shared between parser and tree parser and this is the
     56      *  easier way than copying the interface all over the place. Macros hide this
     57      *  for the generated code so it is easier on the eye (though not the debugger ;-).
     58      */
     59     pANTLR3_BASE_RECOGNIZER			rec;
     60 
     61     /** A provider of a tokenstream interface, for the parser to consume
     62      *  tokens from.
     63      */
     64     pANTLR3_TOKEN_STREAM			tstream;
     65 
     66 	/** A pointer to a function that installs a debugger object (it also
     67 	 *  installs the debugging versions of the parser methods. This means that
     68 	 *  a non debug parser incurs no overhead because of the debugging stuff.
     69 	 */
     70 	void					(*setDebugListener)	(struct ANTLR3_PARSER_struct	* parser, pANTLR3_DEBUG_EVENT_LISTENER dbg);
     71 
     72     /** A pointer to a function that installs a token stream
     73      * for the parser.
     74      */
     75     void					(*setTokenStream)	(struct ANTLR3_PARSER_struct	* parser, pANTLR3_TOKEN_STREAM);
     76 
     77     /** A pointer to a function that returns the token stream for this
     78      *  parser.
     79      */
     80     pANTLR3_TOKEN_STREAM	(*getTokenStream)	(struct ANTLR3_PARSER_struct	* parser);
     81 
     82     /** Pointer to a function that knows how to free resources of an ANTLR3 parser.
     83      */
     84     void			(*free)			(struct ANTLR3_PARSER_struct	* parser);
     85 
     86 }
     87     ANTLR3_PARSER;
     88 
     89 #ifdef __cplusplus
     90 }
     91 #endif
     92 
     93 #endif
     94