* `ibuffer-saved-filter-groups` case sensitive?
@ 2016-10-24 17:06 zimoun
2017-04-07 9:37 ` zimoun
0 siblings, 1 reply; 6+ messages in thread
From: zimoun @ 2016-10-24 17:06 UTC (permalink / raw)
To: help-gnu-emacs
Dear,
I do not know if this behavior is expected or I perhaps miss a point.
Ah, I am running Emacs 24.5.1 packaged by Debian (testing) and I have
not tried Emacs 25 yet.
I would like to filter IBuffer in Gnus-style grouping. Then, I am not
able to split the buffer names between Upper-case and lower-case.
If I understand well, in this case the regexp is case insensitive.
Using this minimal snippet (saved in `ibuf.el`):
(setq ibuffer-saved-filter-groups
(quote (("default"
("lower" (name . "[:lower:]"))
("Upper" (name . "[:upper]"))))))
(add-hook 'ibuffer-mode-hook
(lambda ()
(ibuffer-switch-to-saved-filter-groups "default")))
Then, running `emacs -Q -l ibuf.el`, for example, the buffer
*Messages* is in the lower-group.
(note that if you switch the "filters", then *scratch* appears in Upper-group)
To be concrete, I do not know to locally turn `case-fold-search` to
`nil`, or something in this flavor I guess.
Thank you in advance to any suggestion.
--simon
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: `ibuffer-saved-filter-groups` case sensitive?
2016-10-24 17:06 `ibuffer-saved-filter-groups` case sensitive? zimoun
@ 2017-04-07 9:37 ` zimoun
2017-04-07 11:06 ` hector
0 siblings, 1 reply; 6+ messages in thread
From: zimoun @ 2017-04-07 9:37 UTC (permalink / raw)
To: help-gnu-emacs
Dear community,
Ping.
Is it a bug ?
Or do I miss a point ?
Thank you for any suggestion.
All the best,
-simon
On 24 October 2016 at 19:06, zimoun <zimon.toutoune@gmail.com> wrote:
> Dear,
>
> I do not know if this behavior is expected or I perhaps miss a point.
> Ah, I am running Emacs 24.5.1 packaged by Debian (testing) and I have
> not tried Emacs 25 yet.
>
> I would like to filter IBuffer in Gnus-style grouping. Then, I am not
> able to split the buffer names between Upper-case and lower-case.
>
> If I understand well, in this case the regexp is case insensitive.
>
> Using this minimal snippet (saved in `ibuf.el`):
>
> (setq ibuffer-saved-filter-groups
> (quote (("default"
> ("lower" (name . "[:lower:]"))
> ("Upper" (name . "[:upper]"))))))
> (add-hook 'ibuffer-mode-hook
> (lambda ()
> (ibuffer-switch-to-saved-filter-groups "default")))
>
> Then, running `emacs -Q -l ibuf.el`, for example, the buffer
> *Messages* is in the lower-group.
>
> (note that if you switch the "filters", then *scratch* appears in Upper-group)
>
> To be concrete, I do not know to locally turn `case-fold-search` to
> `nil`, or something in this flavor I guess.
>
>
> Thank you in advance to any suggestion.
>
> --simon
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: `ibuffer-saved-filter-groups` case sensitive?
2017-04-07 9:37 ` zimoun
@ 2017-04-07 11:06 ` hector
2017-04-07 12:47 ` zimoun
0 siblings, 1 reply; 6+ messages in thread
From: hector @ 2017-04-07 11:06 UTC (permalink / raw)
To: help-gnu-emacs; +Cc: zimon.toutoune
On Fri, Apr 07, 2017 at 11:37:15AM +0200, zimoun wrote:
> Dear community,
>
> Ping.
Pong :-)
On 24 October 2016 at 19:06, zimoun <zimon.toutoune@gmail.com> wrote:
> Dear,
>
> I do not know if this behavior is expected or I perhaps miss a point.
> Ah, I am running Emacs 24.5.1 packaged by Debian (testing) and I have
> not tried Emacs 25 yet.
>
> I would like to filter IBuffer in Gnus-style grouping. Then, I am not
> able to split the buffer names between Upper-case and lower-case.
>
> If I understand well, in this case the regexp is case insensitive.
If it uses string-match it depends on the value of case-fold-search.
Try adding:
(make-local-variable 'case-fold-search)
(setq case-fold-search nil)
> Using this minimal snippet (saved in `ibuf.el`):
>
> (setq ibuffer-saved-filter-groups
> (quote (("default"
> ("lower" (name . "[:lower:]"))
> ("Upper" (name . "[:upper]"))))))
> (add-hook 'ibuffer-mode-hook
> (lambda ()
> (ibuffer-switch-to-saved-filter-groups "default")))
>
The regexps are not anchored. "[[:lower:]]" would match any buffer with
a lower case letter.
If I'm not wrong, the right syntax would be: "[[:lower:]]" and "[[:upper:]]".
> Then, running `emacs -Q -l ibuf.el`, for example, the buffer
> *Messages* is in the lower-group.
>
> (note that if you switch the "filters", then *scratch* appears in Upper-group)
>
> To be concrete, I do not know to locally turn `case-fold-search` to
> `nil`, or something in this flavor I guess.
>
>
> Thank you in advance to any suggestion.
I hope that helps.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: `ibuffer-saved-filter-groups` case sensitive?
2017-04-07 11:06 ` hector
@ 2017-04-07 12:47 ` zimoun
2017-04-07 17:03 ` Michael Heerdegen
0 siblings, 1 reply; 6+ messages in thread
From: zimoun @ 2017-04-07 12:47 UTC (permalink / raw)
To: hector; +Cc: help-gnu-emacs
Thank you for the quick pong reply. ;-)
>> I would like to filter IBuffer in Gnus-style grouping. Then, I am not
>> able to split the buffer names between Upper-case and lower-case.
>>
>> If I understand well, in this case the regexp is case insensitive.
>
> If it uses string-match it depends on the value of case-fold-search.
> Try adding:
>
> (make-local-variable 'case-fold-search)
> (setq case-fold-search nil)
Thank you for the tip.
However, I have tried different ways to use it and no one works.
Any advice ?
>> Using this minimal snippet (saved in `ibuf.el`):
>>
>> (setq ibuffer-saved-filter-groups
>> (quote (("default"
>> ("lower" (name . "[:lower:]"))
>> ("Upper" (name . "[:upper]"))))))
>> (add-hook 'ibuffer-mode-hook
>> (lambda ()
>> (ibuffer-switch-to-saved-filter-groups "default")))
>>
>
> The regexps are not anchored. "[[:lower:]]" would match any buffer with
> a lower case letter.
> If I'm not wrong, the right syntax would be: "[[:lower:]]" and "[[:upper:]]".
Hum?
ok, but it does not change anything.
> I hope that helps.
Thank you for your suggestions and I have learned
`make-local-variable' that I did not know.
All the best
-simon
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: `ibuffer-saved-filter-groups` case sensitive?
2017-04-07 12:47 ` zimoun
@ 2017-04-07 17:03 ` Michael Heerdegen
2017-04-08 11:03 ` zimoun
0 siblings, 1 reply; 6+ messages in thread
From: Michael Heerdegen @ 2017-04-07 17:03 UTC (permalink / raw)
To: zimoun; +Cc: help-gnu-emacs, hector
zimoun <zimon.toutoune@gmail.com> writes:
> Thank you for the tip.
> However, I have tried different ways to use it and no one works.
> Any advice ?
This works for me:
#+begin_src emacs-lisp
(setq ibuffer-saved-filter-groups
(quote (("default"
("lower" (name . "\\`[^[:upper:]]*\\'"))
("Upper" (name . "[[:upper:]]"))))))
(add-hook 'ibuffer-mode-hook
(lambda ()
(setq-local case-fold-search nil)
(ibuffer-switch-to-saved-filter-groups "default")))
#+end_src
"[[:lower:]]" would match names containing at least one lowercase
letter. That's not what you want. The regexp used above for "lower"
matches any string not containing any uppercase letter.
Michael.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: `ibuffer-saved-filter-groups` case sensitive?
2017-04-07 17:03 ` Michael Heerdegen
@ 2017-04-08 11:03 ` zimoun
0 siblings, 0 replies; 6+ messages in thread
From: zimoun @ 2017-04-08 11:03 UTC (permalink / raw)
To: Michael Heerdegen; +Cc: help-gnu-emacs, hector
Hi!
Thank you !
Both of you did my week-end :-)
Ah, I have missed this point about `[[:lower::]'. Thank you for the
explanations.
All the best,
-simon
On 7 April 2017 at 19:03, Michael Heerdegen <michael_heerdegen@web.de> wrote:
> zimoun <zimon.toutoune@gmail.com> writes:
>
>> Thank you for the tip.
>> However, I have tried different ways to use it and no one works.
>> Any advice ?
>
> This works for me:
>
> #+begin_src emacs-lisp
> (setq ibuffer-saved-filter-groups
> (quote (("default"
> ("lower" (name . "\\`[^[:upper:]]*\\'"))
> ("Upper" (name . "[[:upper:]]"))))))
> (add-hook 'ibuffer-mode-hook
> (lambda ()
> (setq-local case-fold-search nil)
> (ibuffer-switch-to-saved-filter-groups "default")))
> #+end_src
>
> "[[:lower:]]" would match names containing at least one lowercase
> letter. That's not what you want. The regexp used above for "lower"
> matches any string not containing any uppercase letter.
>
>
> Michael.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-04-08 11:03 UTC | newest]
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2016-10-24 17:06 `ibuffer-saved-filter-groups` case sensitive? zimoun
2017-04-07 9:37 ` zimoun
2017-04-07 11:06 ` hector
2017-04-07 12:47 ` zimoun
2017-04-07 17:03 ` Michael Heerdegen
2017-04-08 11:03 ` zimoun
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