Fwd: Re: [xsl] complex XPATH test

Subject: Fwd: Re: [xsl] complex XPATH test
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Mon, 16 Jul 2001 19:11:45 -0400
Oops, I realized there's one bug... the equality test

$containing-block//text()[.=current()/following::text()]

(I also note typo in my code, missing ']')

isn't going to do the trick. You're going to need some kind of intersection. Like

$containing-block//text()[count(.|current()/following::text())=count(current()/following::text())]

which will really be horrible and slow, even if you put current()/following::text(), and its count, into a variable....

Anyone else? Heh,
Wendell


Date: Mon, 16 Jul 2001 19:03:24 -0400
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Subject: Re: [xsl] complex XPATH test

Adam,

<xsl:template match="br">
<!-- 1st, retrieve the block ancestor you're worried about -->
<xsl:variable name="containing-block" select="(ancestor::p|ancestor::li|ancestor::blockquote)[last()]"/>
<!-- (you'll have to extend that list to include all the possible blocks) -->
<!-- now, figure out what text nodes are actually following inside the block -->
<xsl:variable name="text-following">
<xsl:for-each select="$containing-block//text()[.=current()/following::text()">
<xsl:value-of select="."/>
</xsl:for-each>
<!-- now, include the br if there's anything there besides white space -->
<xsl:if test="normalize-space($text-following)">
<xsl:copy-of/>
</xsl:if>
</xsl:template>


(untested)

It's slow and painful, but then those <br> elements are painful too.

What do you think? I'd like to see a slick solution, too....


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
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