Subject: Re: outputting spaces in html table cells From: Mike Brown <mike@xxxxxxxx> Date: Mon, 28 Aug 2000 10:07:10 -0600 (MDT) |
"Sellmer-Brüls, Barbara" wrote: > I solved it with the following toplevel XSL elements: > <xsl:preserve-space elements="*"/> I'm not sure how this really solves your problem. All this does is makes it so that none of the whitespace-only text nodes in your source tree are stripped before processing. This lets you have the string-value of element 'blah' be a whitespace-only string, if it is specified as such in the XML, instead of an empty string. But if all you are doing is this: <td class="listing"> <xsl:value-of select="blah" /> </td> then you have said "create an element 'td' with attribute 'class'='listing', and create a text node child with ' ' followed by a text node with the string-value of element 'blah' followed by a text node with another ' ': element 'td' | \___attribute 'class'='listing' |___text ' ' |___text '' (string(blah)) |___text ' ' Following the rules of the XPath/XSLT data model, the 3 text nodes will be combined into 1, which will be ' ' at the very least, and you know it will be nothing but whitespace if blah was empty or had a whitespace-only string-value: element 'td' | \___attribute 'class'='listing' |___text ' ' When serialized as HTML as per the xsl:output method specified, you get <td class="listing"> </td> Following the rules of HTML, adjacent spaces are collapsed and considered to be 1 single 'word separator', and in this case there are no words to separate, so it will be collapsed entirely, producing the same result as <td class="listing"></td> ...which of course is technically not allowed, and I think is why you want to use . is by definition  , so as long as you put   into the result tree, you will get either   or in the HTML. Here is my suggestion: <td class="listing"> <xsl:choose> <xsl:when test="normalize-space(blah)"> <xsl:value-of select="blah"/> </xsl:when> <xsl:otherwise> </xsl:otherwise> </xsl:choose> </td> - Mike ____________________________________________________________________ Mike J. Brown, software engineer at My XML/XSL resources: webb.net in Denver, Colorado, USA http://www.skew.org/xml/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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