/*
* Copyright (C) 2008 Google Inc.
*
* 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 com.google.gxp.base.dynamic;
import com.google.gxp.base.GxpTemplate;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* This is the super class of all runtime compiled gxp templates. It
* contains extra functionality necessary for the rendering of these
* templates.
*/
public class ImplGxpTemplate extends GxpTemplate {
private static Pattern PARAM_PATTERN = Pattern.compile("%[1-9%]");
protected static String formatGxpMessage(String org, String... params) {
StringBuilder sb = new StringBuilder();
Matcher m = PARAM_PATTERN.matcher(org);
int start = 0;
while (m.find(start)) {
if (m.start() != start) {
sb.append(org.substring(start, m.start()));
}
String s = m.group().substring(1);
if (s.equals("%")) {
sb.append('%');
} else {
sb.append(params[Integer.parseInt(s) - 1]);
}
start = m.end();
}
if (org.length() > start) {
sb.append(org.substring(start));
}
return sb.toString();
}
}