Re: [xsl] Seeking an elegant XSLT function to check that a pair of numeric ranges are consecutive

["David Carlisle d.p.carlisle@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
version="3.0">

 <xsl:template match="Document">
  <xsl:sequence select="every $r in //Range satisfies
not($r/../following-sibling::Record/Range)
or
(xs:int(replace($r,'.*-',''))+1=
$r/../following-sibling::Record/xs:int(replace(.,'-.*','')))
   "/>
 </xsl:template>
</xsl:stylesheet>

David


On Sat, 25 May 2024 at 17:11, Bauman, Syd s.bauman@xxxxxxxxxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:

> I wrote the test in Schematron, not XSLT (as it seems to me this is a
> constraint on the business rules of the input document, but to each his
> own), but should be pretty similar, no?
>
>     <sch:rule context="Range[following::Range]">
>       <!-- my maximum is either my value or, if I have a hyphen, then the
> value of what comes after said hyphen -->
>       <sch:let name="mymax" value="(if ( contains( ., '-') ) then
> substring-after( ., '-') else .) cast as xs:integer"/>
>       <!-- get next <Range> for texting -->
>       <sch:let name="next" value="following::Range[1]/string()"/>
>       <!-- its minimum is either its value or, if it has a hyphen, then
> the value of what comes before said hyphen -->
>       <sch:let name="nextmin" value="( if ( contains( $next, '-') ) then
> substring-before( $next, '-') else $next) cast as xs:integer"/>
>       <!-- in order to be consecutive, my max need be one less than the
> next min -->
>       <sch:assert test="$mymax + 1 eq $nextmin">Range following this one
> is not consecutive</sch:assert>
>     </sch:rule>
>
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