Glenn Nielsen wrote:
>
> You are welcome. :-)
>
> I ran across an instance where jakarta-regexp would not work well for me
> in a pattern restriction, the pattern caused an N^2 performance bug.
> But Jakarta-ORO worked fine.
>
Now that I think about it, didn't we have that converstation before? :-)
>
> Sure would be nice if this made it into CVS.
>
Maybe we should replace the Jakarta-RegExp with Jakarta-ORO.
What's the difference between the libraries? Besides the fact that one
is working for you and one isn't.
Thanks,
--Keith
>
> Keith Visco wrote:
> >
> > Hi Glenn,
> >
> > Thanks for the contribution.
> >
> > --Keith
> >
> > Glenn Nielsen wrote:
> > >
> > > Attached is a java source file which allows the Jakarta-ORO regexp API to
> > > be used with Castor. In addition the jakarta-oro jar has to be put in the
> > > castor lib directory.
> > >
> > > Regards,
> > >
> > > Glenn
> > >
> > > ----------------------------------------------------------------------
> > > Glenn Nielsen [EMAIL PROTECTED] | /* Spelin donut madder |
> > > MOREnet System Programming | * if iz ina coment. |
> > > Missouri Research and Education Network | */ |
> > > ----------------------------------------------------------------------
> > >
> > > ------------------------------------------------------------------------
> > > /**
> > > * Redistribution and use of this software and associated documentation
> > > * ("Software"), with or without modification, are permitted provided
> > > * that the following conditions are met:
> > > *
> > > * 1. Redistributions of source code must retain copyright
> > > * statements and notices. Redistributions must also contain a
> > > * copy of this document.
> > > *
> > > * 2. Redistributions in binary form must reproduce the
> > > * above copyright notice, this list of conditions and the
> > > * following disclaimer in the documentation and/or other
> > > * materials provided with the distribution.
> > > *
> > > * 3. The name "Exolab" must not be used to endorse or promote
> > > * products derived from this Software without prior written
> > > * permission of Intalio, Inc. For written permission,
> > > * please contact [EMAIL PROTECTED]
> > > *
> > > * 4. Products derived from this Software may not be called "Exolab"
> > > * nor may "Exolab" appear in their names without prior written
> > > * permission of Intalio, Inc. Exolab is a registered
> > > * trademark of Intalio, Inc.
> > > *
> > > * 5. Due credit should be given to the Exolab Project
> > > * (http://www.exolab.org/).
> > > *
> > > * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
> > > * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
> > > * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
> > > * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
> > > * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
> > > * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> > > * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
> > > * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> > > * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
> > > * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> > > * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
> > > * OF THE POSSIBILITY OF SUCH DAMAGE.
> > > *
> > > * Copyright 2000 (C) Intalio, Inc. All Rights Reserved.
> > > *
> > > * $Id$
> > > */
> > >
> > > package org.exolab.castor.util;
> > >
> > > import org.apache.oro.text.regex.*;
> > >
> > > /**
> > > * An implementation of the RegExpEvaluator that uses the
> > > * Jakarta ORO Regular Expression library. For more information
> > > * about the Jakarta ORO library please visit:
> > > * <a href="http://jakarta.apache.org/oro/";>
> > > * http://jakarta.apache.org/oro/</a>
> > > *
> > > * @author <a href="mailto:[EMAIL PROTECTED]";>Keith Visco</a>
> > > * @version $Revision: 1.2 $ $Date: 2000/10/23 21:39:07 $
> > > **/
> > > public class JakartaOroEvaluator
> > > implements RegExpEvaluator
> > > {
> > >
> > > private static final String BOL = "^";
> > > private static final String EOL = "$";
> > >
> > > /**
> > > * The Regular expression
> > > **/
> > > private Perl5Pattern _regexp = null;
> > >
> > > /**
> > > * Creates a new JakartaOroEvaluator
> > > **/
> > > public JakartaOroEvaluator() {
> > > super();
> > > } //-- JakartaOroEvaluator
> > >
> > > /**
> > > * 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
> > > Perl5Compiler compiler = new Perl5Compiler();
> > > _regexp = (Perl5Pattern) compiler.compile(BOL + rexpr + EOL,
> > > Perl5Compiler.SINGLELINE_MASK);
> > > }
> > > catch(MalformedPatternException ex) {
> > > String err = "RegExp 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)
> > > {
> > > // object to match compiled regular expressions
> > > Perl5Matcher matcher = new Perl5Matcher();
> > > // class for accessing results of pattern match
> > > MatchResult result;
> > > return matcher.contains(value,_regexp);
> > > } //-- matches
> > >
> > > } //-- JakartaOroEvaluator
> > >
> > >
> >
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