For your problem with "c/c(+1)" there is are Look-Around Assertions, check perlre. For example, (?=pattern) matches the pattern but does not include it in the match.

Also, in your code snippet, can you please include the missing $steady_states{$var}, so that the code becomes executable.

In reply to Re: Help with regex - find captured pattern twice by hdb
in thread Help with regex - find captured pattern twice by pachydermic

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