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Re: testing element's contents

Subject: Re: testing element's contents
From: Joerg Heinicke <joerg.heinicke@xxxxxx>
Date: Thu, 03 Oct 2002 18:56:04 +0200
xslt element exists
Hi Nathan,

it should work in your example too, because there is a text node as child of the <Link>, so the test is passed.

Only one comment:

<p>
    <Link>

    </Link>
</p>

The above passes the test because of spaces and line breaks between <p> and <Link> or between <Link> and </Link>. To avoid this you can test on nodes, which don't consist of only whitespaces characters. Use normalize-space() for this (http://www.w3.org/TR/xpath#function-normalize-space):

<xsl:when test="descendant::node()[normalize-space()][not(self::Link or self::Media)]">
<p><xsl:apply-templates/></p>
</xsl:when>


=> If a descendant node exists, that consists not only of whitespace characters, that is not <Link> or <Media>, wrap it in <p>.

Regards,

Joerg

Nathan Shaw wrote:
Excellent Joerg! The only place this would not work is
if I have a paragraph element with only a Link element
in it, such as:

<p><Link href="blah.html">This is a link</Link></p>

I need those to pass through the test and be wrapped
in a p tag. Otherwise, it catches everything else I
need!

Thank you! That gives me great direction...

--nate


--- Joerg Heinicke <joerg.heinicke@xxxxxx> wrote:


<xsl:when test="descendant::node()[not(self::Link or
self::Media)]">
  <p><xsl:apply-templates/></p>
</xsl:when>

If there is any descendant node (including elements,
comments, PIs, text), which is not element Link or element Media,
create <p> in output tree.


Regards,

Joerg

Nathan Shaw wrote:

hi all,

Thanks to everyone who gave me advice on my

previous


post about images and captions. Now, I have

another


tricky lil' xslt problem. If a paragraph element
contains ONLY a media element OR a media element
surrounded by a link element and nothing more

(read,


no other nodes, be they text or not), such as:

<p><img
src="http://www.mylocal.gov/images/nasausa.gif"
height="255" width="432"/></p>

I need to strip the p tags out of resulting

output.


However, if it does contain other nodes, such as:

<p><img
src="http://www.mylocal.gov/images/nasausa.gif"
height="255" width="432"/>This is my news release.

The


authors will be typing the news release content in
here! I am not sure what this news release is even
about, but lets see how it comes out in XML, shall

we?


As I see it coming out as:</p>

I need to leave it alone.

Here is what I have so far. It only looks to see

if a


media element or a media element wrapped by a link
element exists, but does not consider if there is

a


text node after a media or link element.

<xsl:template match="p">
<xsl:choose>
	<xsl:when test="((descendant::*[1])[self::Link]

and


(descendant::*[2])[self::Media]) or


(descendant::*[1])[self::Media]"><xsl:apply-templates

/></xsl:when>
	<xsl:otherwise><p><xsl:apply-templates
/></p></xsl:otherwise>
</xsl:choose>
</xsl:template>

Thoughts? Ideas? Criticisms?

--nate


XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list


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