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/cvs/lsys/antlr/ATokenStream.h
Revision: 1.1
Committed: Thu Nov 6 14:31:25 2008 UTC (15 years, 6 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Log Message:
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File Contents

# User Rev Content
1 root 1.1 /* ANTLRTokenStream.h
2     *
3     * SOFTWARE RIGHTS
4     *
5     * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
6     * Set (PCCTS) -- PCCTS is in the public domain. An individual or
7     * company may do whatever they wish with source code distributed with
8     * PCCTS or the code generated by PCCTS, including the incorporation of
9     * PCCTS, or its output, into commerical software.
10     *
11     * We encourage users to develop software with PCCTS. However, we do ask
12     * that credit is given to us for developing PCCTS. By "credit",
13     * we mean that if you incorporate our source code into one of your
14     * programs (commercial product, research project, or otherwise) that you
15     * acknowledge this fact somewhere in the documentation, research report,
16     * etc... If you like PCCTS and have developed a nice tool with the
17     * output, please mention that you developed it using PCCTS. In
18     * addition, we ask that this header remain intact in our source code.
19     * As long as these guidelines are kept, we expect to continue enhancing
20     * this system and expect to make other tools available as they are
21     * completed.
22     *
23     * ANTLR 1.33
24     * Terence Parr
25     * Parr Research Corporation
26     * with Purdue University and AHPCRC, University of Minnesota
27     * 1989-2000
28     */
29    
30     #ifndef ATOKENSTREAM_H_GATE
31     #define ATOKENSTREAM_H_GATE
32    
33     #include "pcctscfg.h"
34    
35     /* This is really a behavior or protocol; it merely indicates the behavior
36     * required of the input and output of an ANTLRTokenBuffer. You could
37     * subclass it, but you can also just pass any old pointer to ANTLRTokenBuffer
38     * with a type cast (in which case, your getANTLRToken() would have to
39     * explicitly cast the input pointer to your REAL type (typically your lexer)).
40     */
41    
42     class ANTLRParser; // MR1
43    
44     class DllExportPCCTS ANTLRTokenStream {
45     public:
46     virtual _ANTLRTokenPtr getToken() = 0;
47     virtual ANTLRParser * setParser(ANTLRParser * /*p MR23*/) {return 0; }; // MR12
48     virtual ANTLRParser * getParser() { return 0; }; // MR12
49     };
50    
51     #endif