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[xsl] Testing if a string begins with numeric in XSL 1.0

2009-10-20 04:28:38
Hi,

Is this the correct/best way to test whether a string begins with a digit in 
XSL 1.0?

    <xsl:when test="string(number(substring($input-name, 1, 1))) != 'NaN'">

I guess using a regular expression in XSL 2.0 would be the best approach, but 
unfortunately I'm constrained to using MSXSL and hence XSL 1.0 at the moment.

Thanks,

Ade

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