GNU bug report logs - #22479
25.0.50; isearch and query-replace histories do not remember if we were looking for symbols

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Juri Linkov <juri <at> linkov.net>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#22479: closed (25.0.50; isearch and query-replace histories
 do not remember if we were looking for symbols)
Date: Thu, 19 Apr 2018 20:33:02 +0000

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Your message dated Thu, 19 Apr 2018 23:32:04 +0300
with message-id <87efjb2bub.fsf <at> mail.linkov.net>
and subject line Re: bug#22479: 25.0.50; isearch and query-replace histories do not remember if we were looking for symbols
has caused the debbugs.gnu.org bug report #22479,
regarding 25.0.50; isearch and query-replace histories do not remember if we were looking for symbols
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Dima Kogan <dima <at> secretsauce.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50;
 isearch and query-replace histories do not remember if we were
 looking for symbols
Date: Wed, 27 Jan 2016 14:27:53 -0800

Hi. It is possible to look for a symbol, and for this information to be
lost when repeating a search. For instance, say I have this buffer:

=======
a b c
ab bc
=======

1. I put the point on the first 'a'

2. M-s . (search for symbol at point). This find a symbol 'a', so the
   'a' in 'ab' doesn't match

3. C-g (quit the search)

4. C-s C-s (repeat previous search). Here emacs remembers we looked for
   'a', but not that it was a symbol, so it finds the 'a' in 'ab' even
   though it should not



A similar sequence is possible with query-replace:

1. Point on 'a'

2. M-s .

3. C-M-%, 'asdf' to replace the symbol 'a' with 'asdf'

4. C-g (quit before replacing anything)

5. C-M-% (repeat last replacement. The symbol-ness of 'a' was forgotten)


The simplest way to fix this would probably be to treat these as regex
searches wrapped in \_<...\_>. The downside is that to access the
history we'd have to do C-M-s C-M-s instead of C-s C-s, but maybe that
is ok. Thoughts?

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From: Juri Linkov <juri <at> linkov.net>
To: Dima Kogan <dima <at> secretsauce.net>
Cc: 22479-done <at> debbugs.gnu.org
Subject: Re: bug#22479: 25.0.50;
 isearch and query-replace histories do not remember if we were
 looking for symbols
Date: Thu, 19 Apr 2018 23:32:04 +0300

Version: 27.0.50

> I'm not sure if I found all problems or there will be more trouble,
> but at least these fixes were necessary for this patch:

Pushed to master as 99de04e.

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