From: Richard Stallman <rms@gnu.org>
To: emacs-devel@gnu.org
Subject: [bojohan+news@dd.chalmers.se: change to try-completion behavior]
Date: Sun, 04 Mar 2007 21:56:05 -0500 [thread overview]
Message-ID: <E1HO3Mr-0002o7-Ig@fencepost.gnu.org> (raw)
Would someone please try to debug this?
Please ack if you have worked on this.
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From: bojohan+news@dd.chalmers.se (Johan =?utf-8?Q?Bockg=C3=A5rd?=)
Date: Thu, 22 Feb 2007 19:33:08 +0100
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Subject: change to try-completion behavior
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version=3.0.4
There was an old thread in gnu.emacs.help (see below) about the change
in behavior of try-completion in CVS.
This code
(let ((completion-ignore-case t))
(try-completion "w" '(("W") ("Write") ("w"))))
returns "W" in Emacs 22. In Emacs 21 is used to return "w", that is
the best match _including_ case.
I should have said in that discussion that I think that this is a
bug/regression. Ftry_completion contains this comment:
/* If there is more than one exact match ignoring case, and one of
them is exact including case, prefer that one. */
The new short-circuiting behavior means that this note is not true in
general.
http://article.gmane.org/gmane.emacs.help/32010
From: Johan Bockgård <bojohan+news <at> dd.chalmers.se>
Subject: Re: change to try-completion behavior in 21.3?
Newsgroups: gmane.emacs.help
Date: 2005-12-17 06:49:54 GMT
Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
>> Why should it ever return the capital letter W?
>
> Because in your completion table, you have "W".
"w" was also in the table.
This change
revision 1.237
date: 2002-04-09 19:28:42 +0000; author: monnier; state: Exp; lines: +89 -47 [...]
(Ftry_completion): Allow lambda forms and lists of strings for
`alist'.
Short-circuit the search as soon as it "failed". [...]
added this piece of code (approximately)
if (matchsize <= SCHARS (string)
&& matchcount > 1)
/* No need to look any further. */
break;
When completion-ignore-case is t this doesn't necessarily find the
best match _including case_ (AFAICS).
- --
Johan Bockgård
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next reply other threads:[~2007-03-05 2:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-05 2:56 Richard Stallman [this message]
2007-03-06 3:22 ` [bojohan+news@dd.chalmers.se: change to try-completion behavior] Chong Yidong
2007-03-06 14:50 ` Stefan Monnier
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