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

["Wendell Piez wapiez@xxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Oops, I got them backwards, of course.

Copy/paste error. That's what unit tests are for.

Enough! Wendell

On Sat, May 25, 2024 at 1:21b/PM Wendell Piez wapiez@xxxxxxxxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:

>     <xsl:function name="r:do-ranges-connect" as="xs:boolean" xmlns:r="
> roger.org">
>         <xsl:param name="previous-range"/>
>         <xsl:param name="current-range"/>
>         <xsl:sequence select="
>                 tokenize($current-range, '-')[last()] ! number() =
>                 (tokenize($previous-range, '-')[1] ! number() + 1)"/>
>     </xsl:function>
>
> NB this returns true from '1-2','3-4-5'.
>
> Enjoy, Wendell
>
>
> On Sat, May 25, 2024 at 1:05b/PM Roger L Costello costello@xxxxxxxxx <
> xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
>> Wow! Below is David Carlisle's solution. He solved the problem in a
>> single statement. Totally mind-blowing! Pure elegance!
>>
>> <xsl:function name="f:do-ranges-connect" as="xs:boolean">
>>     <xsl:param name="previous-range"/>
>>     <xsl:param name="current-range"/>
>>
>>     <xsl:sequence select="xs:int(replace($previous-range,'.*-',''))+1=
>>
>> xs:int(replace($current-range,'-.*',''))"/>
>> </xsl:function>
>>
>>
>>
>
> --
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--
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