From: joaotavora@gmail.com (João Távora)
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Yuri D'Elia <wavexx@thregr.org>, emacs-devel@gnu.org
Subject: Re: electric-pair-mode as a minor mode?
Date: Mon, 30 Mar 2015 11:46:24 +0100 [thread overview]
Message-ID: <jjb384mbtqh.fsf@gmail.com> (raw)
In-Reply-To: jwvk2xzgvjm.fsf-monnier+emacs@gnu.org
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> I guess you'd d have to use syntax-propertize-function to catch&handle the
> "unusual cases".
Here's my current attempt.
(add-hook 'message-mode-hook 'joaot/setup-message-mode-syntax)
(defun joaot/setup-message-mode-syntax ()
(setq-local syntax-propertize-function 'message--syntax-propertize
(setq-local parse-sexp-lookup-properties t)
(setq-local parse-sexp-ignore-comments t))
(defun message--syntax-propertize (beg end)
;; first, remove all `syntax-table' properties
;;
(remove-text-properties beg end '(syntax-table nil))
;; propertize smileys as "generic comments"
;;
(goto-char beg)
(while (search-forward-regexp ":-?[()]" end 'noerror)
(add-text-properties (match-beginning 0) (match-end 0)
'(syntax-table (14 . nil))))
;; idem for citations
;;
(goto-char beg)
(while (search-forward-regexp
(concat "^" message-cite-prefix-regexp ".*")
end 'noerror)
(add-text-properties (match-beginning 0) (match-end 0)
'(syntax-table (14 . nil)))))
It seems works well but:
* I have no idea how "expensive" this naive approach is.
* Although the `syntax-table' property seems to be set correctly, and
both show-paren mode and electric-pair-mode seem to dtrt, I saw many
cases where M-: (nth 4 (syntax-ppss)) didn't return non-nil when it
should have, and vice versa. Is this part of the
`parse-sexp-lookup-properties' sematics, that `syntax-ppss' becomes
meaningless?
* I'm using `message-cite-prefix-regexp' to detect citations. It's what
font-lock in lisp/gnus/message.el uses so it seems ideal. But there
are also a lot of vars like `message-yank-prefix', whose docstring
contains the following line which baffles me:
> Fix `message-cite-prefix-regexp' if it is set to an abnormal value.
Can you have a look and give it some testing?
João
next prev parent reply other threads:[~2015-03-30 10:46 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-26 19:51 electric-pair-mode as a minor mode? Yuri D'Elia
2015-03-27 2:18 ` Stefan Monnier
2015-03-27 8:04 ` Yuri D'Elia
2015-03-27 13:19 ` Stefan Monnier
2015-03-27 11:18 ` João Távora
2015-03-27 13:25 ` Stefan Monnier
2015-03-27 14:09 ` João Távora
2015-03-27 18:20 ` Stefan Monnier
2015-03-28 16:11 ` João Távora
2015-03-28 20:36 ` Stefan Monnier
2015-03-28 21:47 ` João Távora
2015-03-28 23:09 ` João Távora
2015-03-29 4:01 ` Stefan Monnier
2015-03-29 20:41 ` João Távora
2015-03-30 0:54 ` Stefan Monnier
2015-03-30 10:46 ` João Távora [this message]
2015-03-30 13:53 ` Stefan Monnier
2015-03-30 15:43 ` João Távora
2015-03-30 20:33 ` Stefan Monnier
2015-03-30 20:42 ` João Távora
2015-03-30 21:47 ` João Távora
2015-03-30 22:02 ` Stefan Monnier
2015-04-11 16:06 ` João Távora
2015-04-12 11:56 ` Stefan Monnier
2015-04-12 13:16 ` João Távora
2015-04-12 16:39 ` Dmitry Gutov
2015-04-12 22:16 ` João Távora
2015-04-12 23:10 ` Dmitry Gutov
2015-04-15 21:32 ` João Távora
2015-04-15 13:59 ` Lars Magne Ingebrigtsen
2015-04-15 21:16 ` João Távora
2015-04-15 21:21 ` Lars Magne Ingebrigtsen
2015-04-15 21:39 ` João Távora
2015-04-15 21:43 ` Lars Magne Ingebrigtsen
2015-04-26 10:28 ` João Távora
2015-04-26 19:48 ` Lars Magne Ingebrigtsen
2015-04-27 2:29 ` Stefan Monnier
2015-03-27 19:38 ` Yuri D'Elia
2015-03-27 12:52 ` Tom Willemse
2015-03-27 19:01 ` Stefan Monnier
2015-03-28 15:47 ` João Távora
2015-03-28 17:37 ` bug#19528: " Glenn Morris
2015-03-28 21:01 ` João Távora
2015-04-14 6:28 ` Glenn Morris
2015-03-28 15:47 ` João Távora
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