bug#67444: [PATCH] FAQ: Improve explanation of showing file name in titlebar

[Stefan Kangas <stefankangas@gmail.com>]

Eli Zaretskii <eliz@gnu.org> writes:

>> Cc: Santiago Payà i Miralta <santiagopim@gmail.com>
>> From: Santiago Payà i Miralta <santiagopim@gmail.com>
>> Date: Sat, 25 Nov 2023 14:29:16 +0100
>>
>> * doc/misc/efaq.texi (Displaying the current file name in the
>> titlebar): Add example code to show the real file name in the
>> titlebar, not just the buffer name, with the additional dired buffer
>> case, and the last default buffer name.
>> ---
>>  doc/misc/efaq.texi | 11 +++++++++++
>>  1 file changed, 11 insertions(+)
>>
>> diff --git a/doc/misc/efaq.texi b/doc/misc/efaq.texi
>> index 70f434d4b99..92622bd0527 100644
>> --- a/doc/misc/efaq.texi
>> +++ b/doc/misc/efaq.texi
>> @@ -1960,6 +1960,17 @@ Displaying the current file name in the titlebar
>>  (setq frame-title-format "%b")
>>  @end lisp
>>
>> +To show the path to the file when the buffer is visiting some file, or
>> +the directory path when in a dired buffer, or just the name of the
>> +buffer:
>> +
>> +@lisp
>> +(setq frame-title-format
>> +      '(buffer-file-name (:eval (abbreviate-file-name buffer-file-name))
>> +                         (dired-directory dired-directory
>> +                                          "%b")))
>> +@end lisp
>> +
>>  @node Turning on abbrevs by default
>>  @section How do I turn on abbrevs by default just in mode @var{mymode}?
>>  @cindex Abbrevs, turning on by default
>
> Thanks, but I don't want to recommend that users include :eval forms
> in frame-title-format, as that could cause complications, and
> generally slows down redisplay.

Is there some other way to achieve the above customization?

If not, perhaps this bug should simply be closed.  :-/