AutoTools Autotools Text: Finding array index of Match

I am using Autotools Text to find if an exact text string exists in an array. %atmatchedtexts returns a list of matches, which is fine. %atmatches returns a large array (same size as the searched array) with each field set to true or false, depending on if they match.

That's all good, but what I really want to know is the indexes of the array that match. I can do this but scanning the %atmatches array looking for which entries are set to true, but that seems a bit clunky. Is there a better way?

Many thanks in advance for any help

 

Thanks for the tip, that's great

 

That worked a treat, thanks very much