I'm pretty sure it still matters.
On Wed, Jun 17, 2009 at 19:16, Theo Van Dinter<felic...@apache.org> wrote: > Yes, it matters (one path is tried then the other has to be tried, as > opposed to having a single path), though the overall amount is > probably negligible. Perl's RE compiler could well optimize this away > anyway. > > > On Wed, Jun 17, 2009 at 7:45 PM, Kelson<kel...@speed.net> wrote: >> Wouldn't it be more efficient to write all the single-letter matches like >> "(?:s|z)?" as "[sz]?" or does it end up not making a difference when the >> regex is actually processed? > >
