LLkParser Class Reference

#include <LLkParser.hpp>

Inheritance diagram for LLkParser:

Collaboration diagram for LLkParser:

Public Member Functions
	LLkParser (const ParserSharedInputState &lexer, int k_)
	LLkParser (TokenBuffer &tokenBuf, int k_)
	LLkParser (TokenStream &lexer, int k_)
virtual void	consume ()
virtual int	LA (unsigned int i)
virtual RefToken	LT (unsigned int i)
	Return the i-th token of lookahead.
virtual void	traceIn (const char *rname)
virtual void	traceOut (const char *rname)
Public Member Functions inherited from Parser
virtual	~Parser ()
virtual void	setASTNodeFactory (ASTFactory *factory)
virtual void	setASTFactory (ASTFactory *factory)
virtual ASTFactory *	getASTFactory ()
virtual RefAST	getAST ()=0
virtual std::string	getFilename () const
	Return the filename of the input file.
virtual void	setFilename (const std ::string &f)
	Set the filename of the input file (used for error reporting).
virtual void	setInputState (ParserSharedInputState state)
virtual ParserSharedInputState	getInputState () const
virtual void	consumeUntil (int tokenType)
	Consume tokens until one matches the given token.
virtual void	consumeUntil (const BitSet &set)
	Consume tokens until one matches the given token set.
virtual void	match (int t)
virtual void	matchNot (int t)
virtual void	match (const BitSet &b)
virtual unsigned int	mark ()
virtual void	rewind (unsigned int pos)
	rewind to a previously marked position
virtual void	recover (const RecognitionException &ex, const BitSet &tokenSet)
virtual void	reportError (const RecognitionException &ex)
	Parser error-reporting function can be overridden in subclass.
virtual void	reportError (const std ::string &s)
	Parser error-reporting function can be overridden in subclass.
virtual void	reportWarning (const std ::string &s)
	Parser warning-reporting function can be overridden in subclass.
virtual const char *	getTokenName (int num) const =0
	get the token name for the token number 'num'
virtual const char *const *	getTokenNames () const =0
	get a vector with all token names
virtual int	getNumTokens (void) const =0
virtual void	traceIndent ()

Protected Attributes
int	k
	the lookahead this LL(k) parser is using.
Protected Attributes inherited from Parser
ParserSharedInputState	inputState
ASTFactory *	astFactory
	AST support code; parser and treeparser delegate to this object.
int	traceDepth

Private Member Functions
void	trace (const char *ee, const char *rname)

Additional Inherited Members
Protected Member Functions inherited from Parser
	Parser (TokenBuffer &input)
	Parser (TokenBuffer *input)
	Parser (const ParserSharedInputState &state)

Detailed Description

An LL(k) parser.

See also

antlr.Token

antlr.TokenBuffer

antlr.LL1Parser

Constructor & Destructor Documentation

LLkParser() [1/3]

LLkParser::LLkParser	(	const ParserSharedInputState &	state,
		int	k_ )

An LL(k) parser.

See also

antlr.Token

antlr.TokenBuffer

antlr.LL1Parser

LLkParser() [2/3]

LLkParser::LLkParser	(	TokenBuffer &	tokenBuf,
		int	k_ )

LLkParser() [3/3]

LLkParser::LLkParser	(	TokenStream &	lexer,
		int	k_ )

Member Function Documentation

consume()

virtual void LLkParser::consume ( )

inlinevirtual

Consume another token from the input stream. Can only write sequentially! If you need 3 tokens ahead, you must consume() 3 times.

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.

Implements Parser.

LA()

virtual int LLkParser::LA ( unsigned int i )

inlinevirtual

Return the token type of the ith token of lookahead where i=1 is the current token being examined by the parser (i.e., it has not been matched yet).

Implements Parser.

LT()

virtual RefToken LLkParser::LT ( unsigned int i )

inlinevirtual

Return the i-th token of lookahead.

Implements Parser.

trace()

void LLkParser::trace ( const char * ee, const char * rname )

private

traceIn()

void LLkParser::traceIn ( const char * rname )

virtual

Reimplemented from Parser.

traceOut()

void LLkParser::traceOut ( const char * rname )

virtual

Reimplemented from Parser.

Member Data Documentation

k

int LLkParser::k

protected

the lookahead this LL(k) parser is using.

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The documentation for this class was generated from the following files:

• antlr/LLkParser.hpp
• src/LLkParser.cpp