Re: Operation of format-mode-line

[Eli Zaretskii]

> Date: Wed, 24 Jul 2024 10:18:44 +0000
> From: Heime <heimeborgia@protonmail.com>
> Cc: help-gnu-emacs@gnu.org
> 
> On Wednesday, July 24th, 2024 at 2:26 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> 
> > > Date: Tue, 23 Jul 2024 19:13:32 +0000
> > > From: Heime heimeborgia@protonmail.com
> > > Cc: help-gnu-emacs@gnu.org
> > > 
> > > On Wednesday, July 24th, 2024 at 7:07 AM, Eli Zaretskii eliz@gnu.org 
> > > wrote:
> > > 
> > > > > Date: Tue, 23 Jul 2024 18:56:47 +0000
> > > > > From: Heime heimeborgia@protonmail.com
> > > > > Cc: help-gnu-emacs@gnu.org
> > > > > 
> > > > > > > Seems that the text properties are the same for each character.
> > > > > > 
> > > > > > They are not.
> > > > > 
> > > > > If the buffer name is provodilac.el, what is the difference in text 
> > > > > proporties
> > > > > between the different characters ? I see there are faces and code for 
> > > > > mouse
> > > > > action whether I use position 0, 1, 2, etc.
> > > > 
> > > > All the characters that belong to the buffer name indeed have the same
> > > > properties. But not all of the characters of the string returned by
> > > > format-mode-line.
> > > 
> > > Returning the text properties from position 0 would ensure that the 
> > > properties one gets are associated with the the buffer name. Is this 
> > > correct when doing
> > > 
> > > (text-properties-at 0 (format-mode-line mode-line-buffer-identification))
> > 
> > 
> > I don't understand your question, sorry. Is what correct?
> 
> I want to have buffer identification in the modeline without the "%12b"
> so that the buffer name does not get truncated.  What can I do ? Have
> been copying the text properties.

It depends on what you replace "%12b" with.