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Re^2: alternation in regexes: to use or to avoid?

by dk (Chaplain)
on Dec 10, 2012 at 15:14 UTC ( #1008115=note: print w/ replies, xml ) Need Help??


in reply to Re: alternation in regexes: to use or to avoid?
in thread alternation in regexes: to use or to avoid?

Not really, because it says:

A complicated pattern tends to defeat this.

and i'm seeing exactly the opposite. I wish Tom would comment on that :) But thank you for the quote, it helps with understanding why I think that the observed behavior is bad.


Comment on Re^2: alternation in regexes: to use or to avoid?
Re^3: alternation in regexes: to use or to avoid?
by Anonymous Monk on Dec 10, 2012 at 15:22 UTC
    Perhaps read "complicated" as "non-trivial", EG: having alternations

      Please read the benchmark numbers.

      Alternation is MUCH faster than looping over trivial regexes, except when you use captures inside the alternations.

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