Package com.yahoo.prelude.semantics.rule

Class EllipsisCondition

  • public class EllipsisCondition
extends Condition
    A condition which greedily matches anything, represented as "..."
    Author:
    bratseth

    • Constructor Detail

      • EllipsisCondition

        public EllipsisCondition()
        Creates a referable ellipsis condition with no label

      • EllipsisCondition

        public EllipsisCondition​(boolean referable)
        Creates an ellipsis condition with no label

      • EllipsisCondition

        public EllipsisCondition​(java.lang.String label,
                         boolean referable)
        Creates an ellipsis condition

      • EllipsisCondition

        public EllipsisCondition​(java.lang.String label,
                         java.lang.String context)

    • Method Detail

      • doesMatch

        public boolean doesMatch​(RuleEvaluation e)
        Description copied from class: Condition
        Returns whether this condition matches the given evaluation at the current location of the evaluation. If there is a match, the evaluation must be advanced to the location beyond the matching item(s) before this method returns.
        Specified by:
        doesMatch in class Condition

      • getMatchInfo

        public java.lang.String getMatchInfo​(RuleEvaluation e)
        Description copied from class: Condition
        Override this to return a string describing what this condition has matched in this evaluation. Will only be called when this condition is actually matched in this condition
        Overrides:
        getMatchInfo in class Condition
        Returns:
        info about what is matched, or null if there is no info to return (default)

      • isReferable

        public boolean isReferable()
        Returns whether this ellipsis condition can be referred from a production
        Overrides:
        isReferable in class Condition

      • setReferable

        public void setReferable​(boolean referable)
        Sets whether this ellipsis condition can be referred from a production or not

      • hasOpenChoicepoint

        protected boolean hasOpenChoicepoint​(RuleEvaluation e)
        Description copied from class: Condition
        Returns whether there is an open choice in this or any of its subconditions. Returns false by default, must be overriden by conditions which may generate choices open accross multiple calls to matches, or contain such conditions.
        Overrides:
        hasOpenChoicepoint in class Condition

      • toInnerString

        protected java.lang.String toInnerString()
        Description copied from class: Condition
        All instances of this produces a parseable string output
        Specified by:
        toInnerString in class Condition