Hi Bryan,

I use the mactches function:

matches(string,pattern)

For example the following checks for a two digit pattern.

<xsl:if test="matches($input,'\d{2}')>
....do somthing
</xsl:if>

Regards,

Phil


-----Original Message-----
From: bryan rasmussen [mailto:rasmussen.bryan@xxxxxxxxx] 
Sent: Friday, April 13, 2007 9:39 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject:  check the type of the $pattern argument to a regular
expression?

Hi,

I would like to check the that the $pattern argument to a regular
expression in fact follows regular expression rules, since regex is
not castable I guess the only way to do this would be to use regular
expressions and perhaps a for-each to check that the $pattern argument
conforms?

Cheers,
Bryan Rasmussen