[xsl] [XSL] Controlling Output Based on XML Processing Instructions

[Matthew Jaquish <mjaquish@xxxxxxxxx>]

Dear fellow list members;

Question: Is it possible to use XML processing instructions from the source 
XML document to control what is included in the output tree?

Example:
<xmlRoot>
  <parent>
    <child1/>
    <?insertStart?>
    <child2/>
    <?insertEnd?>
    <?deleteStart?>
    <child3/>
  </parent>
</xmlRoot>

Now, since XML processing instructions are not considered part of the XML 
node hierarchy, is it possible to use them in XSL to control things such as 
whether anything between the <?insertStart?> and <?insertEnd?> is included 
in the XSL output and anything between the <?deleteStart?> and 
<?deleteEnd?> is not included in the output?

I know that it is possible to use the processing-instruction() function to 
get the name and text values of the content, but it seems that it would be 
difficult to use this to control the output. Has anyone done anything like 
this before?

I appreciate your input,

...Matt


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