/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You 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 org.apache.commons.mail.re; | |
import java.util.Arrays; | |
import java.util.List; | |
/** A {@link IMatcher} for opening HTML tags, like <pre><img</pre>, | |
* or <pre><src</pre>. Ignores attribute definitions, and the closing | |
* > character. | |
*/ | |
public class HtmlTagMatcher extends AbstractMatcher { | |
private final List<String> elementNames; | |
private String currentElementName; | |
public HtmlTagMatcher(String[] elementNames) { | |
this.elementNames = Arrays.asList(elementNames); | |
} | |
@Override | |
public void find(String text, int startOffset, int endOffset, IMatcher.IListener listener) { | |
for (int i = startOffset; i < endOffset; i++) { | |
final char c = text.charAt(i); | |
if (c == '<') { | |
for (int j = 0; j < elementNames.size(); j++) { | |
final String elementName = elementNames.get(j); | |
if (isWordAt(text, i+1, elementName, true)) { | |
currentElementName = elementName; | |
listener.match(this, text, i, i+1+elementName.length()); | |
currentElementName = null; | |
} | |
} | |
} | |
} | |
} | |
public String getCurrentElementName() { | |
if (currentElementName == null) { | |
throw new IllegalStateException("The current element name is only available inside IListener.match()"); | |
} | |
return currentElementName; | |
} | |
} |