Schematron to comment out a set of nodes

[shudson310]

I'm trying to create a quick fix to take a selected set of nodes and add XML comments around them. I can't seem to get the nodes to copy into the body of the comment.

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<sqf:fix id="commentElement">

                <sqf:description>

                    <sqf:title>Comment out the element.</sqf:title>

                </sqf:description>

                <sqf:add node-type="comment" select="child::*" />

</sqf:fix>

When applied, this quick fix results in an empty comment, instead of the XML that was commented out.

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<!--

         

      -->

I would think there's a way to do this, but haven't found it. I've tried using <xsl:copy-of> and some variations on <sqf:replace>, but still not working.

[xephon]

Hey Scott,

try this:

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<sch:pattern id="comment">

        <sch:rule context="*[contains(@class, ' topic/p ')]">

            <sch:report test="contains(text(), 'foo')" sqf:fix="comment">

                Don't use paragraphs

            </sch:report>

            <sqf:fix id="comment">

                <sqf:description>

                    <sqf:title>Comment</sqf:title>

                </sqf:description>

                <sqf:replace match="." select="." node-type="comment"/>

            </sqf:fix>

        </sch:rule>

    </sch:pattern>

If you add a <p>foo</p> snippet, the report should be fired and the <sqf:replace> can be used to comment the <p> element.

Greetings,
Stefan

[shudson310]

The problem that I'm running into is that the markup is not preserved within the comment. With your solution, I still get:

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<!--





-->

[tavy]

Hello,

According to the SQF Specification , the content of the replace operation has the same functionality as the content of xsl:template element. The problem is that in XSLT when a comment is generated its content must be only text. XSLT Specification says: "It is an error if instantiating the content of xsl:comment creates nodes other than text nodes."

Therefore, using an SQF fix you cannot generate a comment that will contain markup.
As an workaround you can use the "xsl:text" with " disable-output-escaping" to generate the start and end of the comment. In this way you can generate also markup inside a comment.

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<sqf:replace>

    <xsl:text disable-output-escaping="yes"><!--</xsl:text>

        <xsl:copy-of select="."/>

    <xsl:text disable-output-escaping="yes">--></xsl:text>

</sqf:replace>

I will add an issue on our issue tracker to analyze this problem. Maybe we can change the SQF implementation to allow generating a comment with markup in content.


Best Regards,
Octavian

[shudson310]

Thanks, Octavian! That solution works perfectly for me.