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As usual, I didn't explain the concept of what I'm trying to accomplish along with the problem.
I gather a list of created subroutines by parsing the .h files. That creates %SUBS. For each $sub in %SUBS I need to gather all the subroutines that the $sub calls, but only if is exists in %SUBS. From all your inputs I have learned how to work with the code as a string and apply the regex in a while loop which is so far much faster. I'm trying something like: Thanks for the direction! I'll post results and look for more advice. In reply to Re: Slow Regex - How to Optimize
by noslenj123
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