antlr
Class LLkParser

java.lang.Object
  extended byantlr.Parser
      extended byantlr.LLkParser
Direct Known Subclasses:
ANTLRParser, ANTLRTokdefParser, LLkDebuggingParser, ParseTreeDebugParser, Preprocessor
public class LLkParser
extends Parser

An LL(k) parser.

See Also:
Token, TokenBuffer

Constructor Summary
LLkParser(int k_)
           
LLkParser(ParserSharedInputState state, int k_)
           
LLkParser(TokenBuffer tokenBuf, int k_)
           
LLkParser(TokenStream lexer, int k_)
           
 
Method Summary
 void consume()
          Consume another token from the input stream.
 int LA(int i)
          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).
 Token LT(int i)
          Return the ith token of lookahead
 void traceIn(java.lang.String rname)
           
 void traceOut(java.lang.String rname)
           
 
Methods inherited from class antlr.Parser
addMessageListener, addParserListener, addParserMatchListener, addParserTokenListener, addSemanticPredicateListener, addSyntacticPredicateListener, addTraceListener, consumeUntil, consumeUntil, getAST, getASTFactory, getFilename, getInputState, getTokenName, getTokenNames, getTokenTypeToASTClassMap, isDebugMode, mark, match, match, matchNot, panic, removeMessageListener, removeParserListener, removeParserMatchListener, removeParserTokenListener, removeSemanticPredicateListener, removeSyntacticPredicateListener, removeTraceListener, reportError, reportError, reportWarning, rewind, setASTFactory, setASTNodeClass, setASTNodeType, setDebugMode, setFilename, setIgnoreInvalidDebugCalls, setInputState, setTokenBuffer, traceIndent
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LLkParser

public LLkParser(int k_)

LLkParser

public LLkParser(ParserSharedInputState state,
                 int k_)

LLkParser

public LLkParser(TokenBuffer tokenBuf,
                 int k_)

LLkParser

public LLkParser(TokenStream lexer,
                 int k_)
Method Detail

consume

public void consume()
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.

Specified by:
consume in class Parser

LA

public int LA(int i)
       throws TokenStreamException
Description copied from class: Parser
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).

Specified by:
LA in class Parser
Throws:
TokenStreamException

LT

public Token LT(int i)
         throws TokenStreamException
Description copied from class: Parser
Return the ith token of lookahead

Specified by:
LT in class Parser
Throws:
TokenStreamException

traceIn

public void traceIn(java.lang.String rname)
             throws TokenStreamException
Overrides:
traceIn in class Parser
Throws:
TokenStreamException

traceOut

public void traceOut(java.lang.String rname)
              throws TokenStreamException
Overrides:
traceOut in class Parser
Throws:
TokenStreamException