FixedToken.java

/**********************************************************************
Copyright (c) 2009 Asfun Net.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
 **********************************************************************/
package net.asfun.jangod.parse;

import static net.asfun.jangod.parse.ParserConstants.*;

public class FixedToken extends Token {

    private static final long serialVersionUID = -5015884072204770458L;

    static final String toReplace = "\\{\\\\(\\\\*[\\{!#%])";
    static final String replaceWith = "{$1";

    public FixedToken(String image) throws ParseException {
	super(image);
    }

    @Override
    public int getType() {
	return TOKEN_FIXED;
    }

    /**
     * set n is an integer and > 0 change "{\[n]{" and "{\[n]!" and "{\[n]#" and
     * "{\[n]%" to "{\[n-1]{" or "{\[n-1]!" or "{\[n-1]#" or "{\[n-1]%"
     */
    @Override
    protected void parse() {
	content = image.replaceAll(toReplace, replaceWith);
    }

    public boolean isBlank() {
	return content.trim().length() == 0;
    }

    public String trim() {
	return content.trim();
    }

    public String output() {
	return content;
    }

    @Override
    public String toString() {
	if (isBlank()) {
	    return "{~ ~}";
	}
	return "{~ " + content + " ~}";
    }
}