Package com.singularsys.jep.configurableparser.matchers

Class SymbolTokenMatcher

  • All Implemented Interfaces:
    TokenMatcher, java.io.Serializable
    public class SymbolTokenMatcher
extends java.lang.Object
implements TokenMatcher
    Matches a fixed set of symbols, each represented by a SymbolToken. Each SymbolToken behaves like an singleton, only one instance is created and this is returned by the match method.
    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(SymbolToken t)
      Adds a new SymbolToken to be matched.
      SymbolToken getSymbolToken​(java.lang.String s)
      Gets the root SymbolToken for this string.
      void init​(Jep j)
      Initialize the matcher when the Jep instance is known.
      Token match​(java.lang.String s)
      Match the start of the string.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • SymbolTokenMatcher

        public SymbolTokenMatcher()

    • Method Detail

      • match

        public Token match​(java.lang.String s)
        Match the start of the string.
        Specified by:
        match in interface TokenMatcher
        Parameters:
        s - a string to be matched
        Returns:
        a clone of the matching symbol

      • add

        public boolean add​(SymbolToken t)
        Adds a new SymbolToken to be matched.
        Parameters:
        t - a SymbolToken
        Returns:
        true (as specified by Collection.add)

      • init

        public void init​(Jep j)
        Description copied from interface: TokenMatcher
        Initialize the matcher when the Jep instance is known.
        Specified by:
        init in interface TokenMatcher
        Parameters:
        j - Jep instance

      • getSymbolToken

        public SymbolToken getSymbolToken​(java.lang.String s)
        Gets the root SymbolToken for this string. Unlike the match method which returns a clone of the token, this returns the base symbol.
        Parameters:
        s - a string to be matched exactly
        Returns:
        the symbol token or null is no such symbol