Interface LexicalElement

    • Method Detail

      • getLexeme

        java.lang.String getLexeme()
        Get the original representation of the lexical element the way it was specified in the source code.
        Returns:
        the lexical element as string
      • getType

        int getType()
        Get the type of the lexical element.
        Returns:
        return value
      • stringValue

        java.lang.String stringValue()
        Get the string value of the lexical element. This method should be called only when the lexical element is a string literal. Otherwise the implementation will throw IllegalArgumentException();
        Returns:
        return value
      • longValue

        java.lang.Long longValue()
        Get the long value of the element. This method should only be called when the type of the symbol is long. Otherwise the implementation will throw IllegalArgumentException();
        Returns:
        return value
        Throws:
        java.lang.IllegalArgumentException - in case of exception
      • doubleValue

        java.lang.Double doubleValue()
      • booleanValue

        java.lang.Boolean booleanValue()
      • isString

        java.lang.Boolean isString()
      • isDouble

        java.lang.Boolean isDouble()
      • isLong

        java.lang.Boolean isLong()
      • isBoolean

        java.lang.Boolean isBoolean()
      • isNumeric

        java.lang.Boolean isNumeric()
      • isLiteralConstant

        java.lang.Boolean isLiteralConstant()
      • isIdentifier

        java.lang.Boolean isIdentifier()
      • isSymbol

        java.lang.Boolean isSymbol()
      • isSymbol

        java.lang.Boolean isSymbol​(java.lang.String lexeme)
        Return true if the lexical element is a symbol and the lexeme matches the the actual symbol.
        Parameters:
        lexeme - to match by the lexical element. The parameter must not ne null.
        Returns:
        true if the lexical element is a symbol and the lexeme matches the parameter lexeme.
      • isLineTerminator

        java.lang.Boolean isLineTerminator()