Subversion Repositories mkgmap

/*
 * Copyright (C) 2012.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

package uk.me.parabola.mkgmap.osmstyle.eval;

/**
 * The different node types that an {@link Op} can have.
 *
 * @author Steve Ratcliffe
 */
public enum NodeType {
        EQUALS("="),
        GT(">"),
        GTE(">="),
        LT("<"),
        LTE("<="),
        NOT_EQUALS("!="),
        EXISTS("=*"),
        NOT_EXISTS("!=*"),
        AND("&"),
        OR("|"),
        VALUE(null),
        FUNCTION(null),
        OPEN_PAREN("("),
        CLOSE_PAREN(")"),
        NOT("!"),
        REGEX("~");

        private final String symbol;

        private NodeType(String symbol) {
                this.symbol = symbol;
        }

        public String toSymbol() {
                return symbol;
        }
}