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bug#23179: 25.0.92; Restore `M-,' to continue etags search

From: Dmitry Gutov
Subject: bug#23179: 25.0.92; Restore `M-,' to continue etags search
Date: Tue, 5 Apr 2016 15:54:35 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0

On 04/05/2016 08:43 AM, Anders Lindgren wrote:

I gave it a test. The result looks good, and all matches are highlighted
(regardless if the files are loaded or not). Unfortunately, it comes
with a hefty overhead. The time increased from 7.5 s to 10.4 s.

That's too bad. Although the difference might be smaller with other major modes than CC Mode, where syntax-propertize, currently called anyway, is not a no-op.

the time is not reduced if you run it a second time, even if the files
are present in Emacs buffers, indicating that font-lock
is redone unnecessarily.

That's because we don't want to open a zillion buffers and keep them that way, and nobody has implemented find-file-delayed yet:


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