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/*
* Copyright (C) 2001-2013 Michael Fuchs
*
* This file is part of herold.
*
* herold is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* herold 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.
*
* You should have received a copy of the GNU General Public License
* along with herold. If not, see <http://www.gnu.org/licenses/>.
*/
package org.dbdoclet.trafo;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.dbdoclet.service.StringServices;
import org.dbdoclet.xiphias.dom.INodeVisitor;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
public class SectionNumberRemover implements INodeVisitor {
private String regex = null;
public String getRegex() {
return regex;
}
public void setRegex(String regex) {
this.regex = regex;
}
@Override
public void accept(Node node) {
if (regex == null) {
return;
}
if (node instanceof Text) {
Text textNode = (Text) node;
String text = textNode.getData();
text = stripSectionNumber(text, regex);
if (text != null) {
textNode.setData(text);
}
}
if (node instanceof Element) {
Element elem = (Element) node;
NamedNodeMap namedNodeMap = elem.getAttributes();
for (int i = 0; i < namedNodeMap.getLength(); i++) {
Node attrNode = namedNodeMap.item(i);
if (attrNode instanceof Attr) {
Attr attr = (Attr) attrNode;
String value = stripSectionNumber(attr.getValue(), regex);
attr.setValue(value);
}
}
}
}
public static String stripSectionNumber(String title, String regex) {
if (title == null) {
return null;
}
if (regex == null) {
return title;
}
regex = "(" + regex + ").*";
Pattern pattern = Pattern.compile(regex, Pattern.DOTALL);
Matcher matcher = pattern.matcher(title);
if (matcher.matches()) {
String sectionNumber = matcher.group(1);
title = StringServices.cutPrefix(title, sectionNumber);
}
return title;
}
@Override
public void openTag(Node node) throws Exception {
//
}
@Override
public void closeTag(Node node) throws Exception {
//
}
}
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