bug#35062: [PATCH v3 2/3] constify a bit of xterm.c

[Konstantin Kharlamov <hi-angel@yandex.ru>]

On Сб, Apr 20, 2019 at 09:53, Eli Zaretskii <eliz@gnu.org> wrote:
>>  Date: Sat, 20 Apr 2019 04:09:19 +0300
>>  From: Konstantin Kharlamov <hi-angel@yandex.ru>
>>  Cc: Eli Zaretskii <eliz@gnu.org>, 35062@debbugs.gnu.org
>> 
>>  And btw, current workflow with searching through the body doesn't 
>> work
>>  well in vanilla Emacs. While other editors allow you to highlight
>>  matches by putting a caret over a symbol, Emacs requires either
>>  manually making it highlight/unhighlight, or installing a separate
>>  package highlight-symbol.el which is a bit buggy and wasn't updated
>>  since 2016. That is to say, having non-modified things declared with
>>  "const" may help an average Emacs developer.
> 
> I don't think I follow: Emacs's search commands do highlight the
> matches, and we also have symbol-search commands ("M-s _" etc.), so
> what exactly is missing?

See: to any search a word in Emacs you have to either type it manually 
or copy-paste it. And then if you get unlucky to have next match 
offscreen, the search gonna carry currently visible portion of text 
away.

In other editors and IDEs it's implemented instead by selecting a word, 
which makes the editor to highlight matches. That's similar to what 
highlight-symbol.el is doing: you put a caret over a text, and after a 
short timeout (IIRC you can't set timeout to 0 as it introduces lags to 
Emacs) it highlights visible matches of the symbol under the caret. And 
then, if you want to, you can press a hotkey to lock the highlight.