ikegami, thank you for your response. I will try to answer your questions.

I am sorry my code did not work for you. I diffed it against the code on my system and it is working for me. I can offer no explanation for this behavior.

I apologize for not being more forthcoming with my requirements. I had hoped that the example I provided would be enough. This is essentially an “order of operations” problem. The three operations I have are And, Or, and Not. And I basically want to build a tree that will let me handle the terms in order based on the precedence provided by parenthesis with the And and Or at the same level and Not being a little higher. (I know Not is not in my original code, but I was starting small) Take the below generic statement.

(term1) and (term2) and ((term3) or (term4)) and not (term5))

I would like to boil this down into an array I can traverse bottom up getting to the innermost terms first.

So first resolve term3 or term 4

Then resolve the results vs. not term5

Then resolve the results vs term 2 and term 1

I figured traversing a tree structure would be the fastest way to do this but I am open to suggestions.

In reply to Re^2: Can I get some rules help with PARSE::RECDESCENT by DevM
in thread Can I get some rules help with PARSE::RECDESCENT by DevM

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