Re: Add attributes Processed File

> The only solution that i think is to mark te already processed elements "a".

that clearly isn't a solution as XSLT can not write to teh input, and
all templaes are side effect free.

Unfortunately I can't follow your problem description well enough to
suggest any code.

> So I must group all groups of elements "a" that has one element "b" among them.

what do you mean by "group" here, and in particular what do you mean by
group of groups.

As your input and output had lots of <a flag="true"/> I couldn't tell which
elements in the input was being mapped to which element in the output.


> I must group all elements "a" with attribute flag="true" follwed by a
> element "b" with attribute flag="true"  

to select all such a elements you would use

select=".//a[@flag='true'][following-sibling::b[@flag='true]]"

but I can't relate that to your sample output. (The above would just
select one element in your sample input:

<root>
 <a flag="false">
   <b flag="false"/>
 </a>
 <c>
    <b flag="false"/>
    <b flag="false">
       <a flag="true"/><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
       <b flag="true"/>
       <a flag="true"/>
       <a flag="true"/>
       <a flag="true"/>
    </b>
 </c>
</root>

David


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