XSLT Question 1

[Tiamose]

Hi all,

I have a question about XSLT and I hope you can help me.

I have a XML file like that

<book>
<title>
Title here
</title>
<author>
Author name here
</author>
<content>
content here
</content>
</book>


<book>
<author>
Author name here
</author>
<content>
content here
</content>
</book>

<book>
<content>
content here
</content>
</book>

I want to extract title of these books, and ONLY IF there's no title then I'll extract the Author name. If there is neither title nor author then nothing is extracted.

With XSLT, I know how to extract title, or author, or both. However I don't know how to extract author only if there is no title. Can anyone help me?

 

[tsuji]

The conduct of reasoning is procedural, and so it is in xsl as well.
[tt]
<xsl:template match="book">
<xsl:choose>
<xsl:when test="normalize-space(title) != ''">
<!-- do extract title -->
</xsl:when>
<xsltherwise>
<xsl:choose>
<xsl:when test="normalize-space(author) != ''">
<!-- do extract author -->
<xsl:when>
<xsltherwise>
<!-- do nothing -->
</xsltherwise>
</xsl:choose>
</xsltherwise>
<xsl:choose>
</xsl:template>
[/tt]

 

[Tiamose]

Thank you very much tsuji