com.googlecode.html.LostText Maven / Gradle / Ivy
/*
* Copyright Marc Guillemot
*
* 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.googlecode.html;
import org.apache.xerces.xni.Augmentations;
import org.apache.xerces.xni.XMLDocumentHandler;
import org.apache.xerces.xni.XMLString;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Container for text that should be hold and re-feed later like text before <html> that will
* be re-feed in <body>
*
* @author Marc Guillemot
* @version $Id: LostText.java 226 2009-02-09 20:48:44Z mguillem $
*/
class LostText {
/**
* Pair of (text, augmentation)
*/
static class Entry {
private Augmentations augs_;
private XMLString text_;
public Entry(final XMLString text, final Augmentations augs) {
final char[] chars = new char[text.length];
System.arraycopy(text.ch, text.offset, chars, 0, text.length);
text_ = new XMLString(chars, 0, chars.length);
if (augs != null)
augs_ = new HTMLAugmentations(augs);
}
}
private final List entries = new ArrayList();
/**
* Adds some text that need to be re-feed later. The information gets copied.
*/
public void add(final XMLString text, final Augmentations augs) {
if (!entries.isEmpty() || text.toString().trim().length() > 0)
entries.add(new Entry(text, augs));
}
/**
* Indicates if this container contains something
*
* @return true if no lost text has been collected
*/
public boolean isEmpty() {
return entries.isEmpty();
}
/**
* Pushes the characters into the {@link XMLDocumentHandler}
*
* @param tagBalancer the tag balancer that will receive the events
*/
public void refeed(final XMLDocumentHandler tagBalancer) {
for (final Iterator iter = entries.iterator(); iter.hasNext(); ) {
final LostText.Entry entry = (LostText.Entry) iter.next();
tagBalancer.characters(entry.text_, entry.augs_);
}
// not needed anymore once it has been used -> clear to free memory
entries.clear();
}
}