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bug#4708: marked as done (23.1; completion-try-completion adds an extra


From: Emacs bug Tracking System
Subject: bug#4708: marked as done (23.1; completion-try-completion adds an extra $: $$HOMj)
Date: Wed, 14 Oct 2009 04:10:09 +0000

Your message dated Wed, 14 Oct 2009 00:02:18 -0400
with message-id <address@hidden>
and subject line Re: bug#4708: 23.1; completion-try-completion adds an extra $: 
 $$HOMj
has caused the Emacs bug report #4708,
regarding 23.1; completion-try-completion adds an extra $:  $$HOMj
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
4708: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=4708
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 23.1; completion-try-completion adds an extra $: $$HOMj Date: Mon, 12 Oct 2009 12:05:32 -0700
emacs -Q
 
M-: (completion-try-completion "c:/some-dir/$HOMj" nil 16)
 
correctly returns: (c:/some-dir/$HOMEj" . 17)
 
M-: (completion-try-completion "c:/some-dir/$HOMj" nil 17)
 
returns: ("c:/some-dir/$$HOMj" . 18)
 
That doesn't seem correct. Is it correct to have $$ here? If so, can
you please explain it a bit (why)?
 
Also, if this is correct behavior, then please explain this in the doc
string of `completion-try-completion'. The doc string currently says
that STRING, in the return value of (STRING . NEWPOINT), is "the
completed result string". But "result string" cannot be right, if
we're talking about the result of completion. There is no completion
that contains $$HOM.
 
In GNU Emacs 23.1.1 (i386-mingw-nt5.1.2600)
 of 2009-07-29 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.4)'
 




--- End Message ---
--- Begin Message --- Subject: Re: bug#4708: 23.1; completion-try-completion adds an extra $: $$HOMj Date: Wed, 14 Oct 2009 00:02:18 -0400 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)
>> That try-completion will return nil when applied to "/foo/bar/$$HOMj",
>> so basically the $HOMj -> $$HOMj is considered to be a form 
>> of completion.
> Sorry, I don't follow that.

Just what I said: read-file-name-internal considered that changing
"$HOMj" into "$$HOMj" is a form of completion.  Just like hitting TAB
might change Foo into FOO in some completion cases.

> And did you mean try-completion or completion-try-completion?

Makes no difference, it's done in the completion-table, i.e. at
a lower level.


        Stefan

--- End Message ---

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