Re: [xsl] complex XPATH test

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

<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="$containing-block//text()[.=current()/following::text()">
<xsl:value-of select="."/>
<!-- now, include the br if there's anything there besides white space -->
<xsl:if test="normalize-space($text-following)">


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....


At 06:11 PM 7/16/01, you wrote:
Hey guys,

I'm working on an transform that will take well formed HTML and convert it
into a different prose schema (NITF).

I'm trying to do some intelligent filtering of valid, but meaningless HTML
markup (the DHTML Edit control will occasionally give me stuff I'm not too
happy aobut).

If I have a <br> tag inside a block element, I only want to deal with it if
its not the last br tag. An example

I care about the br in :
<p> this is some text<br />
here is some more</p>

but not in:
<p>this is a little bit of text<br /></p>

My original test was
<xsl:template match="br">
        <xsl:if test="count(following-sibling::node()) &gt; 0">

but I ran into a problem with the following:

<p><strong>this is some bolded text<br/></strong>Some more text</p>

since the br was getting ignored.

What I want to do is test that the context node is not the last child of the
context node's ancestor block node. Its also not the case that immediate
parent of that block node will be <body> since <li> is a block node and is a
child of <ol> or <ul>.

Any thougths?

Adam van den Hoven
Internet Software Developer
Blue Zone
tel. 604 685 4310 ext. 260
fax 604 685 4391

> Blue Zone makes you interactive.

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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.      
17 West Jefferson Street                    Direct Phone: 301/315-9635
Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
  Mulberry Technologies: A Consultancy Specializing in SGML and XML

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