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      1 /// Definition of a cyclic dfa structure such that it can be
      2 /// initialized at compile time and have only a single
      3 /// runtime function that can deal with all cyclic dfa
      4 /// structures and show Java how it is done ;-)
      5 ///
      6 #ifndef	ANTLR3_CYCLICDFA_H
      7 #define	ANTLR3_CYCLICDFA_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    <antlr3baserecognizer.h>
     39 #include    <antlr3intstream.h>
     40 
     41 #ifdef __cplusplus
     42 extern "C" {
     43 
     44 // If this header file is included as part of a generated recognizer that
     45 // is being compiled as if it were C++, and this is Windows, then the const elements
     46 // of the structure cause the C++ compiler to (rightly) point out that
     47 // there can be no instantiation of the structure because it needs a constructor
     48 // that can initialize the data, however these structures are not
     49 // useful for C++ as they are pre-generated and static in the recognizer.
     50 // So, we turn off those warnings, which are only at /W4 anyway.
     51 //
     52 #ifdef ANTLR3_WINDOWS
     53 #pragma warning	(push)
     54 #pragma warning (disable : 4510)
     55 #pragma warning (disable : 4512)
     56 #pragma warning (disable : 4610)
     57 #endif
     58 #endif
     59 
     60 typedef struct ANTLR3_CYCLIC_DFA_struct
     61 {
     62     /// Decision number that a particular static structure
     63     ///  represents.
     64     ///
     65     const ANTLR3_INT32		decisionNumber;
     66 
     67     /// What this decision represents
     68     ///
     69     const pANTLR3_UCHAR		description;
     70 
     71     ANTLR3_INT32			(*specialStateTransition)   (void * ctx, pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM is, struct ANTLR3_CYCLIC_DFA_struct * dfa, ANTLR3_INT32 s);
     72 
     73     ANTLR3_INT32			(*specialTransition)	    (void * ctx, pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM is, struct ANTLR3_CYCLIC_DFA_struct * dfa, ANTLR3_INT32 s);
     74 
     75     ANTLR3_INT32			(*predict)					(void * ctx, pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM is, struct ANTLR3_CYCLIC_DFA_struct * dfa);
     76 
     77     const ANTLR3_INT32		    * const eot;
     78     const ANTLR3_INT32		    * const eof;
     79     const ANTLR3_INT32		    * const min;
     80     const ANTLR3_INT32		    * const max;
     81     const ANTLR3_INT32		    * const accept;
     82     const ANTLR3_INT32		    * const special;
     83     const ANTLR3_INT32			* const * const transition;
     84 
     85 }
     86     ANTLR3_CYCLIC_DFA;
     87 
     88 typedef ANTLR3_INT32		(*CDFA_SPECIAL_FUNC)   (void * , pANTLR3_BASE_RECOGNIZER , pANTLR3_INT_STREAM , struct ANTLR3_CYCLIC_DFA_struct * , ANTLR3_INT32);
     89 
     90 #ifdef __cplusplus
     91 }
     92 #ifdef ANTLR3_WINDOWS
     93 #pragma warning	(pop)
     94 #endif
     95 #endif
     96 
     97 #endif
     98