Include parentheses as part of a word while comparing using DeltaXML - xslt

Question

We need to include parentheses as part of the word they surround while comparing.
For example:
Input A:
Hi (A)
Input B:
Hi (B)
Current Output:
Hi (<Inserted>B<\Inserted> <Deleted>A<\Deleted>)
Expected Output:
Hi <Inserted>(B)<\Inserted> <Deleted>(A)<\Deleted>
Thanks!

Answer 1

In this answer, I'm assuming you're using DeltaXML's DocumentComparator class.
The default behaviour for this class is to allow word-by-word comparison. It does this by splitting text up into space, punctuation or word elements.
So, for example, with Input A you would have:
...
<deltaxml:word>Hi</deltaxml:word>
<deltaxml:space>_</deltaxml:space>
<deltaxml:punctuation>(</deltaxml:punctuation>
<deltaxml:word>A</deltaxml:word>
<deltaxml:punctuation>)</deltaxml:punctuation>
...
As the 'A' input to the comparator.
To prevent text being split in this way you need an XSLT input filter that wraps specific text patterns in a deltaxml:word element with a deltaxml:word-by-word='false' attribute. Here is some sample XSLT that achieves this:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:deltaxml="http://www.deltaxml.com/ns/well-formed-delta-v1"
exclude-result-prefixes="#all"
version="2.0">
<xsl:template match="*|comment()|processing-instruction() | #*">
<xsl:copy>
<xsl:apply-templates select="#* | node()"/>
</xsl:copy>
</xsl:template>
<!--
wrap a specific text pattern in text as a word-element
in this case, any non-whitespace characters surrounded by '(' and ')' chars
-->
<xsl:template match="text()">
<xsl:analyze-string select="." regex="(\([^\s]*?\))">
<xsl:matching-substring>
<deltaxml:word deltaxml:word-by-word="false">
<xsl:value-of select="current()"/>
</deltaxml:word>
</xsl:matching-substring>
<xsl:non-matching-substring>
<xsl:value-of select="current()"/>
</xsl:non-matching-substring>
</xsl:analyze-string>
</xsl:template>
</xsl:stylesheet>