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Think about Loose Coupling

Re^3: List manipulation headache

by elef (Friar)
on Feb 14, 2011 at 14:34 UTC ( #888002=note: print w/ replies, xml ) Need Help??

in reply to Re^2: List manipulation headache
in thread List manipulation headache

There are a couple of ways in which that could break.
It will break on lines where the first "wap" is not wap1 (we don't know if that can occur in the file) and it will break on wap11 through wap19, which seem to be valid data (OP: the rest can be abbreviated to 2,3,4,5,12,34).
I seem to remember some regex element that tells perl to do a replacement on the nth occurrence(s) only, which could be used here, but I can't think of it now. Maybe I just made it up.

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