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Re: Regex to match 20 chars of some digits followed by some spaces

by Chmrr (Vicar)
on Dec 19, 2003 at 14:21 UTC ( #315798=note: print w/ replies, xml ) Need Help??


in reply to Regex to match 20 chars of some digits followed by some spaces

Yet another way to do it: /^\d+ *(?<=^.{20})$/ That is, one or more digits, followed by zero or more spaces -- and only thereafter do we check that it summed to 20 characters total. Probably not as efficient (involves more backtracking) but easier for my eyes to understand.


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