From: martin rudalics <rudalics@gmx.at>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 23574@debbugs.gnu.org, john.b.mastro@gmail.com,
cwoodbury@azavea.com, npostavs@users.sourceforge.net
Subject: bug#23574: 24.5; Overzealous underlining in emacs-nox
Date: Thu, 09 Jun 2016 10:38:48 +0200 [thread overview]
Message-ID: <57592B18.2030808@gmx.at> (raw)
In-Reply-To: <83lh2fr4pt.fsf@gnu.org>
> I do know about these, but I don't thunk we should document all those
> details, since there are too many possible variations, and it's too
> easy to be inaccurate. "the last face used on the line" is good
> enough, I think.
Including the quotation marks?
> No, it need not do any of that. The list is fixed for each redisplay
> cycle of each buffer, so the list can be processed only once into a
> bitmap of flags that tell which face attributes trigger face
> extension. Then all redisplay needs to do is compare the attributes
> of the face loaded into the iterator object at end of each line with
> these flags.
OK. But with my property list approach a once calculated bitmap would
have simply overridden the face of the iterator object. Yet cheaper but
less versatile.
>> And then I thought about the - possibly silly idea - that a user might
>> want to put a property like :background on all lines displayed,
>> regardless of the last character's attributes. Such a user would have
>> to, before displaying the relevant buffer parts, go through all these
>> lines and add that property to the newline (?) character of each line.
>> Now I bet that the greater part of such users would put the property on
>> all newline characters of the buffer instead of using something like
>> ‘pre-redisplay-functions’ where even I couldn't tell whether it gets the
>> window's start and end positions always right.
>
> Hmm.. not sure how this is related.
Suppose a user wants to use the same background for all spaces at the
ends of all lines of a buffer regardless of "the last face used on the
line". How would she specify that?
martin
next prev parent reply other threads:[~2016-06-09 8:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-18 17:03 bug#23574: 24.5; Overzealous underlining in emacs-nox Colin Woodbury
2016-05-30 15:04 ` Colin Woodbury
2016-06-04 7:48 ` Eli Zaretskii
[not found] ` <CAHuwsfihHJ8WHwmHvMDF7Ynns4YOJSKEEbjhpbYrw0V=5aYXEQ@mail.gmail.com>
2016-06-04 16:20 ` Eli Zaretskii
2016-06-04 21:37 ` John Mastro
2016-06-05 15:54 ` Eli Zaretskii
2016-06-05 17:05 ` Noam Postavsky
2016-06-05 17:56 ` Eli Zaretskii
2016-06-05 18:20 ` Colin Woodbury
2016-06-05 18:36 ` Eli Zaretskii
2016-06-05 19:13 ` Noam Postavsky
2016-06-06 2:27 ` Eli Zaretskii
2016-06-06 11:42 ` Noam Postavsky
2016-06-06 15:04 ` Eli Zaretskii
2016-06-06 16:54 ` martin rudalics
2016-06-06 18:25 ` Colin Woodbury
2016-06-06 19:18 ` Eli Zaretskii
2016-06-07 0:18 ` Noam Postavsky
2016-06-07 15:55 ` Eli Zaretskii
2016-06-08 2:52 ` Noam Postavsky
2016-06-06 18:55 ` Eli Zaretskii
2016-06-07 9:10 ` martin rudalics
2016-06-07 15:50 ` Eli Zaretskii
2016-06-08 6:33 ` martin rudalics
2016-06-08 17:05 ` Eli Zaretskii
2016-06-09 8:38 ` martin rudalics [this message]
2016-06-09 12:26 ` Eli Zaretskii
2016-06-10 7:16 ` martin rudalics
2016-06-10 8:10 ` Eli Zaretskii
2016-06-10 8:24 ` martin rudalics
2016-06-10 9:50 ` Eli Zaretskii
2016-06-10 13:59 ` martin rudalics
2016-06-10 14:24 ` Eli Zaretskii
2019-10-21 11:49 ` Ergus via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-08 5:32 ` Lars Ingebrigtsen
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