Package com.singularsys.jep.configurableparser.matchers

Class SingleArgFunctionMatcher

  • All Implemented Interfaces:
    GrammarMatcher, java.io.Serializable
    public class SingleArgFunctionMatcher
extends java.lang.Object
implements GrammarMatcher
    A matcher for functions like "sin 30" without brackets and a single simple argument.
    Since:
    3.5
    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void init​(Jep jep)
      Delayed initialisation, this methods is called whenever components of the jep instance are changed.
      Node match​(Lookahead2Iterator<Token> it, GrammarParser parser)
      Test whether the input matches this pattern.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • SingleArgFunctionMatcher

        public SingleArgFunctionMatcher​(Token open)
        Constructor
        Parameters:
        open - token for normal functions like "sin(x)", if the open token is detected then match will return null

    • Method Detail

      • match

        public Node match​(Lookahead2Iterator<Token> it,
                  GrammarParser parser)
           throws ParseException
        Description copied from interface: GrammarMatcher
        Test whether the input matches this pattern.
        Specified by:
        match in interface GrammarMatcher
        Parameters:
        it - An iterator inspecting the input
        parser - the parser to use when evaluating sub expressions
        Returns:
        if matched returns a node representing the content, return null is does not match
        Throws:
        ParseException - if there is a syntactical error in the input.

      • init

        public void init​(Jep jep)
        Description copied from interface: GrammarMatcher
        Delayed initialisation, this methods is called whenever components of the jep instance are changed.
        Specified by:
        init in interface GrammarMatcher
        Parameters:
        jep - the current jep instance.