Package org.eclipse.xtext.parser.antlr

Class Lexer

  • All Implemented Interfaces:
    org.antlr.runtime.TokenSource
    Direct Known Subclasses:
    InternalXtextLexer
    public abstract class Lexer
extends org.antlr.runtime.Lexer
    Hack: As AntLR does not allow to define the superclass of the generated lexer, we call this class Lexer and import it to be used instead of the original lexer class.

    • Field Summary

      • Fields inherited from class org.antlr.runtime.Lexer

        input

      • Fields inherited from class org.antlr.runtime.BaseRecognizer

        DEFAULT_TOKEN_CHANNEL, HIDDEN, INITIAL_FOLLOW_STACK_SIZE, MEMO_RULE_FAILED, MEMO_RULE_UNKNOWN, NEXT_TOKEN_RULE_NAME, state

    • Constructor Summary

      Constructors 
      Constructor Description
      Lexer()  
      Lexer​(org.antlr.runtime.CharStream input)  
      Lexer​(org.antlr.runtime.CharStream input, org.antlr.runtime.RecognizerSharedState state)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void emitErrorMessage​(java.lang.String msg)  
      java.lang.String getErrorMessage​(org.antlr.runtime.Token t)  
      org.antlr.runtime.Token nextToken()  

      • Methods inherited from class org.antlr.runtime.Lexer

        emit, emit, getCharErrorDisplay, getCharIndex, getCharPositionInLine, getCharStream, getErrorMessage, getLine, getSourceName, getText, match, match, matchAny, matchRange, mTokens, recover, reportError, reset, setCharStream, setText, skip, traceIn, traceOut

      • Methods inherited from class org.antlr.runtime.BaseRecognizer

        alreadyParsedRule, beginResync, combineFollows, computeContextSensitiveRuleFOLLOW, computeErrorRecoverySet, consumeUntil, consumeUntil, displayRecognitionError, endResync, failed, getBacktrackingLevel, getCurrentInputSymbol, getErrorHeader, getGrammarFileName, getMissingSymbol, getNumberOfSyntaxErrors, getRuleInvocationStack, getRuleInvocationStack, getRuleMemoization, getRuleMemoizationCacheSize, getTokenErrorDisplay, getTokenNames, match, matchAny, memoize, mismatchIsMissingToken, mismatchIsUnwantedToken, pushFollow, recover, recoverFromMismatchedSet, recoverFromMismatchedToken, setBacktrackingLevel, toStrings, traceIn, traceOut

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • Lexer

        public Lexer()

      • Lexer

        public Lexer​(org.antlr.runtime.CharStream input)

      • Lexer

        public Lexer​(org.antlr.runtime.CharStream input,
             org.antlr.runtime.RecognizerSharedState state)

    • Method Detail

      • nextToken

        public org.antlr.runtime.Token nextToken()
        Specified by:
        nextToken in interface org.antlr.runtime.TokenSource
        Overrides:
        nextToken in class org.antlr.runtime.Lexer

      • getErrorMessage

        public java.lang.String getErrorMessage​(org.antlr.runtime.Token t)

      • emitErrorMessage

        public void emitErrorMessage​(java.lang.String msg)
        Overrides:
        emitErrorMessage in class org.antlr.runtime.BaseRecognizer