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Re: xpath - check for no content
- From: "G. Ken Holman" <gkholman at CraneSoftwrights dot com>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Mon, 29 Jul 2002 11:57:09 -0400
- Subject: Re: [xsl] xpath - check for no content
- Reply-to: xsl-list at lists dot mulberrytech dot com
At 2002-07-29 17:43 +0200, sascha wrote:
simple question i guess:
How do i check if the <run> element or one of it's childsren does not have
any content?
Meaning that there is no output text or so inbetween.
In your example below, you do have text in between ... you have text nodes
comprised only of white-space characters.
example:
<run>
<font size="17pt" style="bold" name="Arial" color="red"/>
<break/>
</run>
I tried...
If the white-space *is* significant, just check the value of the current node:
<xsl:if test=". = ''">
If the white-space *isn't* significant, trim leading and trailing just in
case the input was "lazily" empty:
<xsl:if test="normalize-space(.)=''">
Note this is a common problem where users *think* an element is empty, but
they've inserted a new-line to make the indentation look nice, not
realizing they no longer have an empty element.
I hope this helps.
.................. Ken
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