Re: [xsl] Find the number of elements that are prior to the seriesof elements that match a string?

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 12.03.2019 20:21, Eliot Kimber ekimber@xxxxxxxxxxxx wrote:
> I was thinking of doing something with looking up the individual byte() elements using key() on the string values but I couldn't think of an elegant way to split the input string into two-character chunks. 

Interesting, why do you need the string splitting for the key? Wouldn't

  <xsl:param name="input" as="xs:string">04000000FF</xsl:param>
  <xsl:variable name="len" as="xs:integer" 
select="string-length($input) idiv 2"/>

  <xsl:key name="window" match="Bytes/Byte" use="string-join((., 
following-sibling::Byte[position() lt  $len]))"/>

  <xsl:template match="/">
    <xsl:value-of select="count(key('window', 
$input)[1]/preceding-sibling::Byte)"/>
  </xsl:template>

do?