Re: [xsl] Testing if first child is text or an element?

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 15/04/2024 21:29, dvint@xxxxxxxxx wrote:
> I've got some markup that allows mixed content in an element. When I
> process this content I need to do something different if the element
> starts with text vs an element. My content can be like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <doc>
> B  <step >
> B B B  <info>
> B B B B B  1 The following collection shows examples of non-checklist
> B B B B B  lists with nested checklists.
> B B B B B  <ul>
> B B B B B B B B  <li>This is an unordered list item with a child
> B B B B B B B B B B B  checklist.
> B B B B B B B B  </li>
> B B B B B  </ul>
> B B B  </info>
> B  </step>
> B  <step >
> B B B  <info>
> B B B B B B  <p>2 The following collection shows examples of non-checklist
> B B B B B B B  lists with nested checklists.</p>
> B B B B B B  <ul>
> B B B B B B B B B  <li>This is an unordered list item with a child
> B B B B B B B B B B  checklist.
> B B B B B B B B B  </li>
> B B B B B B  </ul>
> B B  </info>
> B  </step>
> </doc>
>
> I want it to produce:
>
> +
> 1 The following collection shows examples of non-checklist
> lists with nested checklists.
> * This is an unordered list item with a child
> checklist.
>
> 2 The following collection shows examples of non-checklist
> lists with nested checklists.</p>
> * This is an unordered list item with a child
>
> So if the <info> starts with text it should add the '+' and if it
> starets with an element, add nothing.
>
>
>
> B B B B <xsl:template name="list-block-start">
>
> B B B B B B B  <xsl:if test="
> B B B B B B B B B B B  ancestor::step ">
>
> B B B B B B B B B B B  <xsl:choose>
> B B B B B B B B B B B B B B B  <!-- collapsed tables in
kyt1659720640909.dita -->
> B B B B B B B B B B B B B B B  <xsl:when
test="ancestor::*[contains(@outputclass,
> 'collapse')]"/>
> B B B B B B B B B B B B B B B  <xsl:otherwise>
> B B B B B B B B B B B B B B B B B B B  <xsl:value-of select="$RETURN"/>
> B B B B B B B B B B B B B B B B B B B  <xsl:choose>
> B B B B B B B B B B B B B B B B B B B B B B B  <xsl:when
test="local-name()='info'">
> B B B B B B B B B B B B B B B B B B B B B B B B B B B  <xsl:choose>
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B  <xsl:when
test="child::*[1] instance
> of element()">
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B  <!--
do nothing for info element
> with content -->
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B  </xsl:when>
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B  <xsl:when
test="child::*[1] instance
> of text()">
> <xsl:text>+</xsl:text>
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B 
<xsl:value-of select="$RETURN"/>
> B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B  </xsl:when>
> B B B B B B B B B B B B B B B B B B B B B B B B B B B  </xsl:choose>

child::* selects element nodesB  only I think.

But do realize that the second info element also starts with a pure
whitespace text node child.


So, unless you strip-space, both your case have a text node child as the
first child, you might want to check

B B  info[node()[1][normalize-space()] instance of text()]]

or

B B  info[node()[1][normalize-space()][self::text()]]

to match the info element that starts with a text node that has more
than whitespace.