xml - XSL:template & Combination of two match conditions to select outer node -


given following (part of a) xml file:

<span deltaxml:deltav2="a!=b">     <deltaxml:attributes deltaxml:deltav2="a!=b">       <dxa:class deltaxml:deltav2="a!=b">         <deltaxml:attributevalue deltaxml:deltav2="b">lof</deltaxml:attributevalue>       </dxa:class>     </deltaxml:attributes>     text </span>

... want / need match <span> nodes in <xsl:template match=".."> statement target spans with

  • the span having deltaxml:deltav2 attribute 'a!=b' value ,
  • the exact deltaxml:attributes/dxa:class/deltaxml:attributevalue child structure inner-most deltaxml:attributevalue node having deltaxml:deltav2 attribute set 'b' value , containing 'lof' value / text

basically need match exact condition shown above later select / use 'some text' part.. that's easy thing once matched <span> node(s) in input xml.. far i've been scratching head , failed select node(s).

maybe fluent in more complex match statements , knows 1 correct 1 here. thanks!

you can create big predicate expression and'ing , counting attributes. nodes not have matched directly because attributes without elements cannot exist. however, elements , attributes counted ensure there no more nor less elements/attributes in span/element, respectively. text nodes not handled, merely existence of some text checked.

so following complex expression match exactly element/attribute tree structure described: 

<xsl:template match="span[   @deltaxml:deltav2='a!=b' ,    count(descendant::*)=3 ,   deltaxml:attributes/@deltaxml:deltav2 ,   count(deltaxml:attributes/@*)=1 ,   deltaxml:attributes/dxa:class/@deltaxml:deltav2 ,   count(deltaxml:attributes/dxa:class/@*)=1 ,    deltaxml:attributes/dxa:class/deltaxml:attributevalue/@deltaxml:deltav2='b' ,   count(deltaxml:attributes/dxa:class/deltaxml:attributevalue/@*)=1 ,    deltaxml:attributes/dxa:class/deltaxml:attributevalue/text()='lof' ,   normalize-space(text()[2])='some text']">   match! </xsl:template>

unfortunately comparing 2 resulting tree fragments in variables containing sub-trees not work because there no compare-op (see here).


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