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Re: Re: RE: Quantifiers in regular expressions

by Roy Johnson (Monsignor)
on May 19, 2004 at 20:25 UTC ( #354742=note: print w/ replies, xml ) Need Help??

in reply to Re: RE: Quantifiers in regular expressions
in thread Quantifiers in regular expressions

Putting a ? on a quantifier that isn't variable-length is like having any color car you want, as long as it's black. There's no difference between a greedy and a non-greedy {5}.

A greedy quantifier will take as many characters as it can, and then start backtracking until whatever follows it matches. A non-greedy one will take as few characters as it can, and then take more until whatever is supposed to follow it is found.

The PerlMonk tr/// Advocate

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