xslt function to generate number which is based on attributes of aother element -


i trying convert xml quirky formats html.

i have this

<spec_span span_start="c2" span_end="c9" span_name="ab12" /> ... <table_entry span_name="ab12">text value</entry>

i trying convert 

<td colspan="8">text value</td>

roughly needs done is.

  • look span_spec id ab12
  • strip 'c' prefix span_start , span_end
  • subtract integer value left in span_start span_end
  • add 1 final value.

i think should possible write function of sort it. string manipulation type casting , maths in xslt not sure about.

roughly needs done is.

  • look span_spec id ab12
  • strip 'c' prefix span_start , span_end

lookup in xslt best done using key. , stripping out known character easy using translate() function.

place @ top of stylesheet, outside of template:

<xsl:key name="spec_span" match="spec_span" use="@span_name" />

then apply input <table_entry> (?) element:

<xsl:variable name="span" select="key('spec_span', @span_name)" /> <td colspan="{translate($span/@span_end, 'c', '') - translate($span/@span_start, 'c', '') + 1}">text value</td>

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