* bug#5519: command-switch-alist
@ 2010-02-03 23:07 Arni Magnusson
2010-02-05 4:50 ` Chong Yidong
0 siblings, 1 reply; 2+ messages in thread
From: Arni Magnusson @ 2010-02-03 23:07 UTC (permalink / raw)
To: 5519
The GNU Emacs Lisp Reference Manual (section 39.1.4) describes the
variable `command-switch-alist', saying specifically that the CAR should
be a string, _not_ including the initial hyphen.
My experiments indicate that the CAR string should indeed include the
initialy hyphen. I can create a custom option using "-c",
(setq command-switch-alist '(("-c" . (lambda (arg)(c-mode)))))
$ emacs -c # starts successfully in c-mode
but not using "c":
(setq command-switch-alist '(("c" . (lambda (arg)(c-mode)))))
$ emacs -c # Emacs says: Unknown option `-c'
Therefore, it appears that there is a bug either in Emacs or the Lisp
manual, since they disagree on whether the CAR string should include the
initial hyphen or not.
Best regards,
Arni
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#5519: command-switch-alist
2010-02-03 23:07 bug#5519: command-switch-alist Arni Magnusson
@ 2010-02-05 4:50 ` Chong Yidong
0 siblings, 0 replies; 2+ messages in thread
From: Chong Yidong @ 2010-02-05 4:50 UTC (permalink / raw)
To: Arni Magnusson; +Cc: 5519
> The GNU Emacs Lisp Reference Manual (section 39.1.4) describes the
> variable `command-switch-alist', saying specifically that the CAR should
> be a string, _not_ including the initial hyphen.
>
> My experiments indicate that the CAR string should indeed include the
> initialy hyphen. I can create a custom option using "-c",
>
> (setq command-switch-alist '(("-c" . (lambda (arg)(c-mode)))))
> $ emacs -c # starts successfully in c-mode
>
> but not using "c":
>
> (setq command-switch-alist '(("c" . (lambda (arg)(c-mode)))))
> $ emacs -c # Emacs says: Unknown option `-c'
>
> Therefore, it appears that there is a bug either in Emacs or the Lisp
> manual, since they disagree on whether the CAR string should include the
> initial hyphen or not.
Thanks for the bug report. This was a bug in Emacs 23 (Emacs 22 worked
according to the description in the Elisp manual). I've checked in a
fix.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2010-02-05 4:50 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-02-03 23:07 bug#5519: command-switch-alist Arni Magnusson
2010-02-05 4:50 ` Chong Yidong
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).