From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lennart Borgman <lennart.borgman@gmail.com>
Cc: Leo <sdl.web@gmail.com>, Drew Adams <drew.adams@oracle.com>,
emacs-devel@gnu.org
Subject: Re: `completion-in-region'
Date: Sun, 11 Apr 2010 16:51:19 -0400 [thread overview]
Message-ID: <jwvk4sdyarz.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <v2pe01d8a51004111308p2afe22efua162ae5322473af3@mail.gmail.com> (Lennart Borgman's message of "Sun, 11 Apr 2010 22:08:11 +0200")
>> I see that ido implements it by turning "abc" into the regexp
>> ".*a.*b.*c". But matching this regexp against a string like
>> "abababababab" takes time O(N^3) where N is the length of the completion
>> candidate, which makes me a bit uneasy
> Does not "^a.*?b.*?c" give the same matches?
No because of the ^. If you use ".*?a.*?b.*?c", then yes it gives the
same matches but it also has the same O(N^3) worst case.
Stefan
next prev parent reply other threads:[~2010-04-11 20:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-06 14:37 `completion-in-region' Leo
2010-04-09 3:05 ` `completion-in-region' Stefan Monnier
2010-04-11 12:56 ` `completion-in-region' Leo
2010-04-11 15:32 ` `completion-in-region' Stefan Monnier
2010-04-11 18:05 ` `completion-in-region' Drew Adams
2010-04-11 19:44 ` `completion-in-region' Stefan Monnier
2010-04-11 19:56 ` `completion-in-region' Drew Adams
2010-04-11 20:49 ` `completion-in-region' Stefan Monnier
2010-04-11 21:13 ` `completion-in-region' Drew Adams
2010-04-11 20:08 ` `completion-in-region' Lennart Borgman
2010-04-11 20:51 ` Stefan Monnier [this message]
2010-04-11 21:06 ` `completion-in-region' Lennart Borgman
2010-04-12 2:10 ` `completion-in-region' Stefan Monnier
2010-04-12 9:46 ` `completion-in-region' Lennart Borgman
2010-04-12 13:10 ` `completion-in-region' Stefan Monnier
2010-04-12 14:50 ` `completion-in-region' Davis Herring
2010-04-11 21:12 ` `completion-in-region' Drew Adams
2010-04-12 15:36 ` `completion-in-region' Leo
2010-04-12 18:10 ` `completion-in-region' Stefan Monnier
2010-04-12 15:51 ` `completion-in-region' Leo
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