From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Marcin Borkowski <mbork@mbork.pl>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Why call font-lock-add-keywords in a mode hook?
Date: Tue, 26 Jan 2016 08:04:16 -0500 [thread overview]
Message-ID: <jwvsi1kv6g6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87fuxkbu6f.fsf@mbork.pl> (Marcin Borkowski's message of "Tue, 26 Jan 2016 09:51:04 +0100")
>>> My question: why would I want to call this function in a hook if I can
>>> specify the mode in its invocation?
>> Because the other use is fundamentally unclean, requiring
>> a re-implementation of major-mode's inheritance, whereas you get it for
>> free if you use nil for `mode' and call it from the mode's hook instead.
> Ah, so that means that if I use a non-nil value for the `mode' argument,
> say x-mode, and launch a buffer in y-mode, which derives from x-mode,
> then I won't have my keywords there?
Yes (unless someone wrote the extra code to try and handle this case).
Stefan
prev parent reply other threads:[~2016-01-26 13:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 10:03 Why call font-lock-add-keywords in a mode hook? Marcin Borkowski
2016-01-25 14:49 ` Michael Heerdegen
2016-01-26 4:14 ` Stefan Monnier
2016-01-26 8:51 ` Marcin Borkowski
2016-01-26 13:04 ` Stefan Monnier [this message]
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