Hi, castor develover,
Currently, castor use jakarta regexp or oro for regexp pattern.
Xerces have another regular expression library which is used to XML
Schema validation. I wrote XercesRegExpEvaluatior for Xerces and
attached this mail. If you use this code default, we don't need extra
regular expression library.
To use XercesRegExpEvaluator, modify castor.properties at following:
+# An implementation which uses the Xerces Regular Expression Library
+org.exolab.castor.regexp=org.exolab.castor.util.XercesRegExpEvaluator
# An implementation which uses the Jakarta RegExp library
-org.exolab.castor.regexp=org.exolab.castor.util.JakartaRegExpEvaluator
+#org.exolab.castor.regexp=org.exolab.castor.util.JakartaRegExpEvaluator
If you prefer, please take it.
regards,
Takashi Okamoto
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* Copyright 2000 (C) Intalio, Inc. All Rights Reserved.
*
* $Id: XercesRegExpEvaluator.java,v 1.2 2000/10/23 21:39:07 kvisco Exp $
*/
package org.exolab.castor.util;
import org.apache.xerces.utils.regex.RegularExpression;
import org.apache.xerces.utils.regex.ParseException;
/**
* An implementation of the XercesRegExpEvaluator that uses the
* Regular Expression library in Xerces. For more information
* about the Xerces Regular Expression library please visit:
* <a
href="http://xml.apache.org/xerces-j/apiDocs/org/apache/xerces/utils/regex/RegularExpression.html";>
*
http://xml.apache.org/xerces-j/apiDocs/org/apache/xerces/utils/regex/RegularExpression.html</a>
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Keith Visco</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Takashi Okamoto</a>
* @version $Revision: 1.2 $ $Date: 2000/10/23 21:39:07 $
**/
public class XercesRegExpEvaluator
implements RegExpEvaluator
{
private static final String BOL = "^";
private static final String EOL = "$";
/**
* The Regular expression
**/
RegularExpression _regexp = null;
/**
* Creates a new XercesRegExpEvaluator
**/
public XercesRegExpEvaluator() {
super();
} //-- XercesRegExpEvaluator
/**
* Sets the regular expression to match against during
* a call to #matches
*
* @param rexpr the regular expression
**/
public void setExpression(String rexpr) {
if (rexpr != null) {
try {
//-- patch and compile expression
_regexp = new RegularExpression(BOL + rexpr + EOL);
}
catch(ParseException ex) {
String err = "XercesRegExpp Syntax error: ";
err += ex.getMessage();
err += " ; error occured with the following "+
"regular expression: " + rexpr;
throw new IllegalArgumentException(err);
}
}
else
_regexp = null;
} //-- setExpression
/**
* Returns true if the given String is matched by the
* regular expression of this RegExpEvaluator
*
* @param value the String to check the production of
* @return true if the given string matches the regular
* expression of this RegExpEvaluator
* @see #setExpression
**/
public boolean matches(String value)
{
if (_regexp != null) return _regexp.matches(value);
return true;
} //-- matches
} //-- XercesRegExpEvaluator
