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On 18/11/2012 18:42, Andrew Welch wrote:
A useful technique I've found with a multi-case xsl:analyze-string is to use a set of variables for each of the regex alternatives and then join them for a composite alternative expression, viz:Yep, or the usual way is to put the regex in the content of a variable with as="xs:string": <xsl:variable name="r1">\d+</xsl:variable>
<xsl:variable name="r2">[A-Za-z]+</xsl:variable>
....
<xsl:analyse-string select="." regex="{string-join(($r1,$r2),'|')}">
<xsl:matching-substring>
<xsl:choose>
<xsl:when test="matches(.,$r1)">It's a number</xsl:when>
<xsl:when test="matches(.,$r2)">A word this time....</xsl:when>
.......
This has three advantages:
i) you only define each case once,
ii) dealing with entities such as quotes is much easier and
iii) it's much clearer what the alternatives are.The only minor niggle is with embedded bracketed substructures '(...)' where the numbering to access them, regex-group(n), depends upon the position in the composite sequence. -- John Lumley MA PhD CEng FIEE john@xxxxxxxxxxxxxx
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