llkparser.hpp

Java写的词法/语法分析器。可生成JAVA语言或者是C++的词法和语法分析器。并可产生语法分析树和对该树进行遍历

#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:[e-mail]">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__