RE: [xsl] Selecting First Direct Sibling

["Wasiq Shaikh" <wasiq911@xxxxxxxxxxx>]

Oh I see. I had always thought that node() would select an actual node or 
text. Didn't think it would select blank spaces. My source document is 
pretty big and I can see that my previous version didn't grab particular 
content.

Thank you!

----Original Message Follows----
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: [xsl] Selecting First Direct Sibling

following-sibling::node()[1][self::comment()]

selects the following sibling node if it is a comment.

If there's a whitespace text node in between the context node and the
comment, following-sibling::node()[1] will be a text node, so nothing will
be selected.

So it's a good idea to get rid of whitespace text nodes using strip-space.

Michael Kay
http://www.saxonica.com/


> -----Original Message-----
> From: Wasiq Shaikh [mailto:wasiq911@xxxxxxxxxxx]
> Sent: 20 August 2007 18:35
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Selecting First Direct Sibling
>
> Hello,
>
> I'm having a weird and frustrating problem. I have two XSL
> files (XPath1.0/Xalan2.7J). Both do the same thing. One
> (mine) is more robust and has a bit more processing. The
> other more simplistic and different formatting but with the
> same goal in mind. That goal is to produce a flat list of
> elements and its attributes from an XML Schema document.
>
> The objective here is to get the comment block directly after
> an element and/or attribute declaration.
>
> Example:
>
> <xsd:element name="blah">
> <!-- This is a comment about the element blah -->
>    <xsd:attribute name="someAttribute"/>
>    <xsd:attribute name="blahAttribute"/>
>    <!-- This is a comment about the attribute blahAttribute
> under element blah --> </xsd:element>
>
> Let's focus on grabbing the comment block under attributes.
> In the simplistic XSL tranformation we have this:
>
> <xs:stylesheet exclude-result-prefixes="xsd"
>    xmlns:xsd="http://www.w3.org/2001/XMLSchema";
>    xmlns:xs="http://www.w3.org/1999/XSL/Transform";
>    version="1.0"
>    xmlns:xalan="http://xml.apache.org/xslt";>
>
>    <xs:output indent="yes" xalan:indent-amount="3"/>
>
> <xs:template match="/">
>    <xs:element name="Repository">
>       <xs:element name="Elements">
>          <xs:apply-templates select="/*/*"/>
>       </xs:element>
>    </xs:element>
> </xs:template>
>
> <xs:template match="xsd:element[@name]">
>    <xs:element name="{@name}">
>       <xs:if test="string(@type)">
>          <xs:attribute name="type">
>             <xs:value-of select="@type"/>
>          </xs:attribute>
>       </xs:if>
>       <xs:for-each select="*[name()='xsd:simpleType' or
> name()='xsd:complexType']">
>          <xs:apply-templates select="*"/>
>       </xs:for-each>
>    </xs:element>
> </xs:template>
>
> <xs:template match="xsd:attribute">
>    <xs:element name="attribute">
>       <xs:attribute name="name">
>          <xs:value-of select="@name"/>
>       </xs:attribute>
>       <xs:copy-of
> select="following-sibling::node()[1][self::comment()]"/>
>    </xs:element>
> </xs:template>
>
> <xs:template match="xsd:sequence|xsd:choice">
>    <xs:apply-templates select="*"/>
> </xs:template>
>
> <xs:template match="node()|@*"/>
>
> </xs:stylesheet>
>
> This works great. It grabs the comment block directly after
> an attribute. If it doesn't exist it doesn't process
> anything. The output will be this:
>
> <blah>
>    <attribute name="someAttribute"/>
>    <attribute name="blahAttribute"/>
>    <!-- This is a comment about the attribute blahAttribute
> under element blah --> </blah>
>
> So, I take this simplistic stylesheet and make it more
> robust, more descriptive, added a few changes to the format,
> some more descriptive attributes, process complexTypes and
> extensions and so forth ... However, the comment grab doesn't work.
>
> ------
>
> OHHH ... SOB!!! I figured it out! [40 minutes later] I'll
> leave the original message I was typing so others will
> understand the problem.
>
> Apparently, adding/removing this line
>
> <xsl:strip-space elements="xsd:complexType"/>
>
> makes the script work/not work. This doesn't make sense to me
> .. what does this have to do with processing comments?
>
> W.S
>

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