* read-file-name: resulting file name must satisfy predicate ?
@ 2006-03-29 19:09 Lennart Borgman
2006-03-29 21:17 ` Kevin Rodgers
0 siblings, 1 reply; 3+ messages in thread
From: Lennart Borgman @ 2006-03-29 19:09 UTC (permalink / raw)
The doc string for `read-file-name' says
If optional sixth arg predicate is non-nil, possible completions and
the resulting file name must satisfy (funcall predicate NAME).
However testing with
(read-file-name "File: " nil nil nil nil (lambda(name) (string-match
"wantname")))
and entering some characters for the file name and then pressing <RET>
just seem to return whatever the mini-buffer shows. Maybe this is
correct. The doc string could be read as "resulting file name from
completion". But it is in my opinion still unclear and a bit unexpected.
This is on w32. GNU Emacs 22.0.50.1 (i386-mingw-nt5.0.2195) of 2006-03-28.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: read-file-name: resulting file name must satisfy predicate ?
2006-03-29 19:09 read-file-name: resulting file name must satisfy predicate ? Lennart Borgman
@ 2006-03-29 21:17 ` Kevin Rodgers
2006-03-29 21:28 ` Lennart Borgman
0 siblings, 1 reply; 3+ messages in thread
From: Kevin Rodgers @ 2006-03-29 21:17 UTC (permalink / raw)
Lennart Borgman wrote:
> The doc string for `read-file-name' says
>
> If optional sixth arg predicate is non-nil, possible completions and
> the resulting file name must satisfy (funcall predicate NAME).
>
> However testing with
>
> (read-file-name "File: " nil nil nil nil (lambda(name) (string-match
> "wantname")))
>
> and entering some characters for the file name and then pressing <RET>
> just seem to return whatever the mini-buffer shows. Maybe this is
> correct. The doc string could be read as "resulting file name from
> completion". But it is in my opinion still unclear and a bit unexpected.
>
> This is on w32. GNU Emacs 22.0.50.1 (i386-mingw-nt5.0.2195) of 2006-03-28.
Does it work if you pass the required second arg to string-match:
(read-file-name "File: " nil nil nil nil
(lambda (name) (string-match "wantname" name)))
I don't think "resulting from completion" is relevant when MUSTMATCH
(the fourth arg) is nil.
--
Kevin Rodgers
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: read-file-name: resulting file name must satisfy predicate ?
2006-03-29 21:17 ` Kevin Rodgers
@ 2006-03-29 21:28 ` Lennart Borgman
0 siblings, 0 replies; 3+ messages in thread
From: Lennart Borgman @ 2006-03-29 21:28 UTC (permalink / raw)
Cc: emacs-devel
Kevin Rodgers wrote:
> Lennart Borgman wrote:
>> The doc string for `read-file-name' says
>>
>> If optional sixth arg predicate is non-nil, possible completions and
>> the resulting file name must satisfy (funcall predicate NAME).
>>
>> However testing with
>>
>> (read-file-name "File: " nil nil nil nil (lambda(name)
>> (string-match "wantname")))
>>
>> and entering some characters for the file name and then pressing
>> <RET> just seem to return whatever the mini-buffer shows. Maybe this
>> is correct. The doc string could be read as "resulting file name from
>> completion". But it is in my opinion still unclear and a bit unexpected.
>>
>> This is on w32. GNU Emacs 22.0.50.1 (i386-mingw-nt5.0.2195) of
>> 2006-03-28.
>
> Does it work if you pass the required second arg to string-match:
>
> (read-file-name "File: " nil nil nil nil
> (lambda (name) (string-match "wantname" name)))
Oh, sorry. I should train my cut-and-paste. ;-) -- but no. It is still
the same behaviour.
>
> I don't think "resulting from completion" is relevant when MUSTMATCH
> (the fourth arg) is nil.
>
Yes, you are right. But do you get the same behaviour as me?
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-03-29 19:09 read-file-name: resulting file name must satisfy predicate ? Lennart Borgman
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