LLkParser.hpp
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上传日期:2007-01-06
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- #ifndef INC_LLkParser_hpp__
- #define INC_LLkParser_hpp__
- /**
- * <b>SOFTWARE RIGHTS</b>
- * <p>
- * ANTLR 2.6.0 MageLang Insitute, 1999
- * <p>
- * We reserve no legal rights to the ANTLR--it is fully in the
- * public domain. An individual or company may do whatever
- * they wish with source code distributed with ANTLR or the
- * code generated by ANTLR, including the incorporation of
- * ANTLR, or its output, into commerical software.
- * <p>
- * We encourage users to develop software with ANTLR. However,
- * we do ask that credit is given to us for developing
- * ANTLR. By "credit", we mean that if you use ANTLR or
- * incorporate any source code into one of your programs
- * (commercial product, research project, or otherwise) that
- * you acknowledge this fact somewhere in the documentation,
- * research report, etc... If you like ANTLR and have
- * developed a nice tool with the output, please mention that
- * you developed it using ANTLR. In addition, we ask that the
- * headers remain intact in our source code. As long as these
- * guidelines are kept, we expect to continue enhancing this
- * system and expect to make other tools available as they are
- * completed.
- * <p>
- * The ANTLR gang:
- * @version ANTLR 2.6.0 MageLang Insitute, 1999
- * @author Terence Parr, <a href=http://www.MageLang.com>MageLang Institute</a>
- * @author <br>John Lilley, <a href=http://www.Empathy.com>Empathy Software</a>
- * @author <br><a href="mailto:pete@yamuna.demon.co.uk">Pete Wells</a>
- */
- #include "antlr/config.hpp"
- #include "antlr/Parser.hpp"
- ANTLR_BEGIN_NAMESPACE(antlr)
- /**An LL(k) parser.
- *
- * @see antlr.Token
- * @see antlr.TokenBuffer
- * @see antlr.LL1Parser
- */
- class LLkParser : public Parser {
- private:
- int k;
- public:
- // LLkParser(int k_);
- LLkParser(const ParserSharedInputState& lexer, int k_);
- LLkParser(TokenBuffer& tokenBuf, int k_);
- LLkParser(TokenStream& lexer, int k_);
- /**Consume another token from the input stream. Can only write sequentially!
- * If you need 3 tokens ahead, you must consume() 3 times.
- * <p>
- * Note that it is possible to overwrite tokens that have not been matched.
- * For example, calling consume() 3 times when k=2, means that the first token
- * consumed will be overwritten with the 3rd.
- */
- void consume();
- int LA(int i);
- RefToken LT(int i);
- private:
- void trace(const ANTLR_USE_NAMESPACE(std)string& ee, const ANTLR_USE_NAMESPACE(std)string& rname);
- public:
- void traceIn(const ANTLR_USE_NAMESPACE(std)string& rname);
- void traceOut(const ANTLR_USE_NAMESPACE(std)string& rname);
- };
- ANTLR_END_NAMESPACE
- #endif //INC_LLkParser_hpp__