Subject: Re: [xsl] A - B From: "Marrow" <marrow@xxxxxxxxxxxxxx> Date: Thu, 22 Aug 2002 19:07:10 +0100 |
Hi, If you wanted missing values to default to zero you could use sum(), e.g. == XML1 ================================ <?xml version="1.0"?> <root> <B>3</B> </root> == end of XML1 =========================== == XSL1 ================================= <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="text"/> <xsl:template match="/"> <xsl:value-of select="sum(root/A[1]) - sum(root/B[1])"/> </xsl:template> </xsl:stylesheet> == end of XSL1 ============================ or if the values are optional and, if present, might also contain non-numeric values to be defaulted to zero, e.g. == XML2 ================================ <?xml version="1.0"?> <root> <A>xyz</A> <B>3</B> </root> == end of XML2 =========================== == XSL1 ================================= <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="text"/> <xsl:template match="/"> <xsl:value-of select="sum(root/A[1][number(.) = number(.)]) - sum(root/B[1][number(.) = number(.)])"/> </xsl:template> </xsl:stylesheet> == end of XSL1 ============================ Hope this helps Marrow http://www.marrowsoft.com - home of Xselerator (XSLT IDE and debugger) http://www.topxml.com/Xselerator -----Original Message----- From: pcoustillas <pcoustillas@xxxxxxxxxxx> To: mulberrytech <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Date: 22 August 2002 17:23 Subject: [xsl] A - B >hi, how could i do A-B when A or B does not exist or is absent... >because without a test i recieve "NaN". Thanks. > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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