From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 39190@debbugs.gnu.org, felician.nemeth@gmail.com, juri@linkov.net
Subject: bug#39190: 28.0.50; two buffers with same buffer-file-name (diff-syntax-fontify-props)
Date: Tue, 28 Jan 2020 15:12:03 -0500 [thread overview]
Message-ID: <jwvr1zjxs60.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <837e1bo499.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 28 Jan 2020 19:54:58 +0200")
> So this is because those modes
They're not "modes", really, they're features that create a temp buffer
related to file FOO and need to set this buffer to the same mode as file FOO
(e.g. this happens in vc-revision-other-window, or also in diff-mode
where we grab a hunk's text and want to put it in its corresponding
major mode to give it mode-specific highlighting).
> set buffer-file-name instead of activating the major mode directly?
Right: they don't know which major mode should be used, so they set
buffer-file-name and then call set-auto-mode (which looks up
auto-mode-alist and directory local vars appropriately).
> And by setting buffer-file-name they by side effect tell unrelated
> features that this buffer is associated with a file?
Indeed.
> If so, then I'm not sure I understand the solution. The offending
> modes will have to be modified to use this new variable instead of
> buffer-file-name, no?
That's what the patch does, yes (modulo the fact that they're not
really "modes").
> And if we have to modify them, then why not do TRT while at that,
> i.e. call the major mode directly instead of setting some variable?
We set the variable in order to find out what mode to use.
Stefan
next prev parent reply other threads:[~2020-01-28 20:12 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-19 11:14 bug#39190: 28.0.50; two buffers with same buffer-file-name (diff-syntax-fontify-props) Felician Nemeth
2020-01-20 22:56 ` Juri Linkov
2020-01-20 23:34 ` Stefan Monnier
2020-01-24 0:13 ` Juri Linkov
2020-01-24 14:18 ` Stefan Monnier
2020-01-28 0:01 ` Juri Linkov
2020-01-28 1:30 ` Stefan Monnier
2020-01-28 3:32 ` Eli Zaretskii
2020-01-28 13:58 ` Stefan Monnier
2020-01-28 14:54 ` Dmitry Gutov
2020-01-28 22:53 ` Juri Linkov
2020-01-28 17:54 ` Eli Zaretskii
2020-01-28 20:12 ` Stefan Monnier [this message]
2020-01-28 20:23 ` Eli Zaretskii
2020-01-28 23:17 ` Stefan Monnier
2020-01-29 17:13 ` Eli Zaretskii
2020-01-29 21:33 ` Stefan Monnier
2020-01-30 14:17 ` Eli Zaretskii
2020-01-30 14:34 ` Stefan Monnier
2020-01-30 22:50 ` Juri Linkov
2020-01-30 23:09 ` Stefan Monnier
2020-01-30 23:31 ` Dmitry Gutov
2020-01-26 19:34 ` Felician Nemeth
2020-01-28 0:05 ` Juri Linkov
2020-01-28 17:18 ` Felician Nemeth
2020-01-29 23:07 ` Juri Linkov
2020-01-30 19:48 ` Felician Nemeth
2020-01-30 22:45 ` Juri Linkov
2020-02-02 9:42 ` Felician Nemeth
2020-02-02 13:50 ` Stefan Monnier
2020-02-02 23:41 ` Juri Linkov
2020-02-03 13:14 ` Dmitry Gutov
2020-02-03 22:44 ` Juri Linkov
2020-02-04 13:08 ` Dmitry Gutov
2020-02-03 22:45 ` Juri Linkov
2020-02-04 13:36 ` Stefan Monnier
2020-02-04 23:20 ` Juri Linkov
2020-02-05 22:39 ` Juri Linkov
2020-02-09 16:06 ` Felician Nemeth
2020-02-18 0:06 ` Juri Linkov
2020-02-18 13:33 ` Stefan Monnier
2020-02-18 22:53 ` Juri Linkov
2020-02-18 23:07 ` Stefan Monnier
2020-02-18 23:31 ` Stefan Monnier
2020-02-19 0:49 ` Juri Linkov
2020-02-19 13:20 ` Stefan Monnier
2020-02-20 0:58 ` Juri Linkov
2020-03-24 21:37 ` Juri Linkov
2020-03-24 22:29 ` Stefan Monnier
2020-03-25 20:39 ` Juri Linkov
2020-03-25 21:13 ` Stefan Monnier
2020-03-25 21:48 ` Juri Linkov
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