[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: check the type of the $pattern argument to a regul

Subject: Re: check the type of the $pattern argument to a regular expression?
From: "bryan rasmussen" <rasmussen.bryan@xxxxxxxxx>
Date: Mon, 16 Apr 2007 14:52:57 +0200
Re:  check the type of the $pattern argument to a regul
Is there a concise description somewhere as to how they differ, are
there a large number of xslt regular expressions that are compatible
with Java regular expressions or are they basically incompatible? I
would suppose the main difference is that XSL-T regular expressions
are Unicode compatible regex's  - correct?

Bryan Rasmussen

On 4/16/07, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> This is one way to way check if a pattern is valid:
> <xsl:stylesheet version="2.0"
>       xmlns:regex="java.util.regex.Pattern"
>       xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>       xmlns:saxon="http://saxon.sf.net/">
> <xsl:template match="/">
>       <xsl:value-of select="saxon:try(regex:compile(']['),
> 'false')"/> </xsl:template>
> </xsl:stylesheet>
> This attempts to compile the regex using Java, and catches
> the PatternSyntaxException using Saxon SA's saxon:try()
> function.  In this case it returns "false" because "][" is invalid.

Java regular expressions and XPath regular expressions are not the same

Michael Kay

Current Thread


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.