Subject: Re: [xsl] XPath MOD 10 calculation From: Abel Braaksma <abel.online@xxxxxxxxx> Date: Thu, 24 May 2007 13:37:54 +0200 |
Cheers, -- Abel Braaksma
Hi list
I have made a MOD 10 calculation with XPath to check if a UPC barcode number is legal. I am just wondering if the code could be made more elegant with some of the new stuff in XPath 2.0.
Since I am going to use the test in Schematron, I can use variables but not templates or other xsl elements than shown below.
The context value is some UPC code like 639382000393.
<xsl:variable name="x" select="((xs:integer(substring(., 1, 1)) + xs:integer(substring(., 3, 1)) + xs:integer(substring(., 5, 1)) + xs:integer(substring(., 7, 1)) + xs:integer(substring(., 9, 1)) + xs:integer(substring(., 11, 1))) * 3 + (xs:integer(substring(., 2, 1)) + xs:integer(substring(., 4, 1)) + xs:integer(substring(., 6, 1)) + xs:integer(substring(., 8, 1)) + xs:integer(substring(., 10, 1)))) mod 10"/>
<xsl:if test="(if ($x ne 0) then (10 - $x) else $x) ne xs:integer(substring(., 12, 1))"> <!-- Not legal, do something --> </xsl:if>
Cheers,
Jesper Tverskov http://www.xmlplease.com/xslt
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