Re: Creating a padded sort key: easier from elt sequen

>  Yves Forkl wrote:
>
>  >> - As my dotted sequence [like "3.11.A.9"] can be of variable
>  >>   length, I need to determine the number of sort statements
>  >>   dynamically.
>
>
>  As you said the numbers are < 1000, you can easily create a
>  normalized sort string:
>
>      ~/xslt/tests> cat sort-keys.xsl
>      <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                     xmlns:xs="http://www.w3.org/2001/XMLSchema"
>                     xmlns:my="my:sort-keys.xsl"
>                     version="2.0">
>
>        <xsl:output method="text"/>
>
>        <xsl:function name="my:normalise-sort-keys" as="xs:string">
>          <xsl:param name="keys" as="element()+"/>
>          <xsl:value-of separator="." select="
>              for $s in $keys/string(.) return
>                if ( matches($s, '[0-9]+') ) then
>                  format-number(number($s), '000')
>                else
>                  $s
>            "/>
>        </xsl:function>
>
>        <xsl:template match="/">
>          <xsl:for-each select="root/elt">
>            <xsl:sort select="my:normalise-sort-keys(sort_key_elt)"/>
>            <xsl:value-of select="@id"/>
>            <xsl:text>&#10;</xsl:text>
>          </xsl:for-each>
>        </xsl:template>
>
>      </xsl:transform>
>
>  [...]
>
>  If you choose a string instead of several elements as your keys, you
>  can adapt this with tokenize().

Thank you very much for this, the solution looks really neat in XSLT
2.0. How to achieve the same result in XSLT 1.1 where user-defined
functions are not generally available? (Not speaking of
processor-specific capabilities.)

One thing I'm not sure about is which "idiom" could help to implement
this idea. Can you give me a hint on this? (You don't need to bother
writing the full code.)