question about nasty regex
Lawrence D'Oliveiro
ldo at geek-central.gen.new_zealand
Tue Apr 4 01:50:29 EDT 2006
In article <7xacb2fdyt.fsf at ruckus.brouhaha.com>,
Paul Rubin <http://phr.cx@NOSPAM.invalid> wrote:
>"Some people, when confronted with a problem, think ``I know, I'll use
>regular expressions.'' Now they have two problems." --JWZ
Regexes are good if you need a solution quickly, and you're not
processing large amounts of data on a regular basis. (How large is
large? When you're chewing through appreciable amounts of CPU time doing
it.)
Once you get to that point, it would be more efficient to hand-code your
own state machine to do the parsing. Of course, doing it in an (even
partially) interpreted language like Python or Perl would defeat the
point...
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