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Old February 28th, 2008, 12:58 PM
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Default Contains Function

I am trying to do a basic e-mail address validation. I've done:

<xsl:if test="contains(mailaddress, '@') and contains(mailaddress, '.')">

which has cut out some of the rubbish.

firstly can the . and @ be contained in a single "contain"

secondly does anyone have anything else for e-mail checking (I am using version 1) - maybe checking that there must be a dot after the @ sign???? I assume doing something with substring-after(mailaddress, '@') might help, but I've not tried it yet.

thanks in advance

 
Old February 28th, 2008, 01:16 PM
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This is much too complicated for XSLT 1.0's limited string-handling.

It's quite hard even with regular expressions (available in 2.0). Google for "email address regular expression"

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference
 
Old February 28th, 2008, 06:16 PM
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As Michael says, in XSLT 1.0 this kind of thing is extremely complicated and hard. It might (dare I say it) be a good place for an extension functon into whatever language you are running this in (e.g. java) if XSLT 2.0 is not an option.

/- Sam Judson : Wrox Technical Editor -/





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