Package com.javacc.core

Class Expansion

    • Field Detail

    • Constructor Detail

      • Expansion

        public Expansion​(Grammar grammar)

      • Expansion

        public Expansion()

    • Method Detail

      • getIndex

        public int getIndex()

      • getContainingProduction

        public BNFProduction getContainingProduction()

      • getLabel

        public String getLabel()

      • setLabel

        public void setLabel​(String label)

      • isTolerantParsing

        public boolean isTolerantParsing()
        If we hit a parsing error in this expansion, do we try to recover? This is only used in fault-tolerant mode, of course!

      • setTolerantParsing

        public void setTolerantParsing​(boolean tolerantParsing)

      • getNestedExpansion

        public Expansion getNestedExpansion()

      • getIsRegexp

        public boolean getIsRegexp()

      • isAtChoicePoint

        public boolean isAtChoicePoint()

      • getNonSuperfluousParent

        public Node getNonSuperfluousParent()
        Returns:
        the first ancestor that is not (directly) inside superfluous parentheses. (Yes, this is a bit hairy and I'm not 100% sure it's correct!) I really need to take a good look at all this handling of expansions inside parentheses.

      • getSpecifiedLexicalState

        public String getSpecifiedLexicalState()
        Returns:
        the lexical state to switch into to parse this expansion.

      • getCustomErrorRecoveryBlock

        public CodeBlock getCustomErrorRecoveryBlock()

      • setCustomErrorRecoveryBlock

        public void setCustomErrorRecoveryBlock​(CodeBlock customErrorRecoveryBlock)

      • superfluousParentheses

        public final boolean superfluousParentheses()
        Is this expansion superfluous parentheses?

      • beginsSequence

        public boolean beginsSequence()

      • isInsideLookahead

        public boolean isInsideLookahead()

      • getLookahead

        public Lookahead getLookahead()

      • getHasExplicitLookahead

        public boolean getHasExplicitLookahead()

      • getHasExplicitNumericalLookahead

        public boolean getHasExplicitNumericalLookahead()

      • getHasSeparateSyntacticLookahead

        public boolean getHasSeparateSyntacticLookahead()
        Does this expansion have a separate lookahead expansion?

      • getHasImplicitSyntacticLookahead

        public boolean getHasImplicitSyntacticLookahead()
        Do we do a syntactic lookahead using this expansion itself as the lookahead expansion?

      • isScanLimit

        public boolean isScanLimit()

      • setScanLimit

        public void setScanLimit​(boolean scanLimit)

      • getScanLimitPlus

        public int getScanLimitPlus()

      • setScanLimitPlus

        public void setScanLimitPlus​(int scanLimitPlus)

      • getRequiresScanAhead

        public boolean getRequiresScanAhead()

      • getRequiresPredicateMethod

        public final boolean getRequiresPredicateMethod()

      • getLookaheadExpansion

        public Expansion getLookaheadExpansion()

      • isAlwaysSuccessful

        public boolean isAlwaysSuccessful()

      • getHasGlobalSemanticActions

        public boolean getHasGlobalSemanticActions()

      • getLookaheadAmount

        public int getLookaheadAmount()

      • getHasSemanticLookahead

        public boolean getHasSemanticLookahead()

      • getHasScanLimit

        public boolean getHasScanLimit()

      • getHasInnerScanLimit

        public boolean getHasInnerScanLimit()

      • getUpToExpansion

        public Expansion getUpToExpansion()

      • getSemanticLookahead

        public Expression getSemanticLookahead()

      • getHasLookBehind

        public boolean getHasLookBehind()

      • getLookBehind

        public LookBehind getLookBehind()

      • isNegated

        public boolean isNegated()

      • getFirstSetVarName

        public String getFirstSetVarName()

      • getFinalSetVarName

        public String getFinalSetVarName()

      • getFollowSetVarName

        public String getFollowSetVarName()

      • getScanRoutineName

        public String getScanRoutineName()

      • getPredicateMethodName

        public String getPredicateMethodName()

      • getRecoverMethodName

        public String getRecoverMethodName()

      • getRecoverToMethodName

        public String getRecoverToMethodName()

      • getFinalSetSize

        public int getFinalSetSize()

      • getFirstSet

        public abstract TokenSet getFirstSet()

      • getFinalSet

        public abstract TokenSet getFinalSet()

      • getHasFullFollowSet

        public boolean getHasFullFollowSet()

      • getSpecifiesLexicalStateSwitch

        public boolean getSpecifiesLexicalStateSwitch()

      • getHasTokenActivation

        public boolean getHasTokenActivation()

      • isPossiblyEmpty

        public abstract boolean isPossiblyEmpty()
        Returns:
        Can this expansion be matched by the empty string.

      • isSingleToken

        public final boolean isSingleToken()
        Returns:
        whether this Expansion is always matched by exactly one token AND there is no funny business like lexical state switches a FAIL or an up-to-here marker

      • getMinimumSize

        public abstract int getMinimumSize()
        Returns:
        the minimum number of tokens that this expansion consumes.

      • getMaximumSize

        public abstract int getMaximumSize()
        Returns:
        the maximum number of tokens that this expansion consumes.

      • getFollowingExpansion

        public Expansion getFollowingExpansion()

      • getFollowSet

        public TokenSet getFollowSet()

      • isBeforeLexicalStateSwitch

        public Boolean isBeforeLexicalStateSwitch()

      • getRequiresRecoverMethod

        public boolean getRequiresRecoverMethod()