/**
* Copyright 2005-2014 Red Hat, Inc.
*
* Red Hat 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.fusesource.ide.commons.camel.tools.parser;
import de.pdark.decentxml.Token;
import de.pdark.decentxml.XMLParseException;
import de.pdark.decentxml.XMLSource;
import de.pdark.decentxml.XMLTokenizer;
import de.pdark.decentxml.validation.CharValidator;
/**
* Patch for <a href="https://code.google.com/p/decentxml/issues/detail?id=5">issue #5</a>
*/
public class PatchedXMLTokenizer extends XMLTokenizer {
private CharValidator charValidator = new CharValidator();
public PatchedXMLTokenizer(XMLSource source) {
super(source);
}
/**
* Read the attribute of an element.
* <p>
* <p>The resulting token will contain the name, "=" plus the
* quotes and the value.
*/
protected void parseAttribute(Token token) {
// TODO this is a monster copy/paste - would be nicer to fix in the underlying library! :)
token.setType(Type.ATTRIBUTE);
parseName("attribute");
if (pos == token.getStartOffset())
throw new XMLParseException("Expected attribute name", source, pos);
skipWhiteSpace();
expect('=');
skipWhiteSpace();
char c = 0;
if (pos < source.length())
c = source.charAt(pos);
if (c != '\'' && c != '"')
throw new XMLParseException("Expected single or double quotes", source, pos);
char endChar = c;
boolean insideEntity = false;
int errorPos = pos;
while (true) {
pos++;
if (pos >= source.length()) {
int i = Math.min(20, source.length() - token.getStartOffset());
throw new XMLParseException("Missing end quote (" + endChar + ") of attribute: "
+ lookAheadForErrorMessage(null, token.getStartOffset(), i), token);
}
c = source.charAt(pos);
if (c == endChar)
break;
if (c == '<')
throw new XMLParseException("Illegal character in attribute value: '" + c + "'", source, pos);
if (c == '&') {
insideEntity = true;
errorPos = pos;
} else if (c == ';') {
verifyEntity(errorPos, pos + 1);
insideEntity = false;
} else {
String msg = charValidator.isValid(source, pos);
if (msg != null)
throw new XMLParseException("Illegal character found in attribute value. " + msg, source, pos);
skipChar(c);
pos--;
}
}
if (insideEntity) {
throw new XMLParseException("Missing ';' after '&': " + lookAheadForErrorMessage(null, errorPos, 20), source, errorPos);
}
// Skip end-char
pos++;
}
}