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From: Eli Zaretskii <eliz@gnu.org>
To: Keith David Bershatsky <esq@lawlist.com>
Cc: emacs-devel@gnu.org
Subject: Re: Problems with move_it_in_display_line_to X when tabs exist.
Date: Mon, 04 Dec 2017 18:26:04 +0200	[thread overview]
Message-ID: <83mv2yxxwj.fsf@gnu.org> (raw)
In-Reply-To: <m28tejci1w.wl%esq@lawlist.com> (message from Keith David Bershatsky on Sun, 03 Dec 2017 19:01:47 -0800)

> Date:  Sun, 03 Dec 2017 19:01:47 -0800
> From:  Keith David Bershatsky <esq@lawlist.com>
> Cc:  emacs-devel@gnu.org
> 
> I built Emacs 26 for Windows (using my modification patch) and ran the same series of tests along with taking a screen-shot at the link below.  it.pixel_width is correct on Emacs 26 for Windows, whereas it.pixel_width is wrong on Emacs 26 for OSX 10.6.8.

I'm surprised you see a difference.  This code is supposed to be
platform independent.  So I guess you need to examine all the places
in xdisp.c which are "#ifded NS" or "#ifndef NS".

> it.what reports IT_CHARACTER on both platforms, however, I expected the result to be IT_STRETCH.

This is expected, and not a bug: IT_STRETCH means we are producing
stretch glyphs "out of thin air", this happens when processing 'space'
display properties and line-prefixes.  When we display a TAB, we
produce the stretch glyph from a TAB, which is a character.



  reply	other threads:[~2017-12-04 16:26 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-04  3:01 Problems with move_it_in_display_line_to X when tabs exist Keith David Bershatsky
2017-12-04 16:26 ` Eli Zaretskii [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-01-23  7:38 Keith David Bershatsky
2018-01-21 20:32 Keith David Bershatsky
2018-01-16 17:53 Keith David Bershatsky
2018-01-16  4:41 Keith David Bershatsky
2018-01-16 17:00 ` Eli Zaretskii
2018-01-15  5:48 Keith David Bershatsky
2018-01-15 12:06 ` Eli Zaretskii
2017-12-06 16:24 Keith David Bershatsky
2017-12-04  8:03 Keith David Bershatsky
2017-12-03 20:56 Keith David Bershatsky
2017-12-04 15:48 ` Eli Zaretskii
2017-12-03  3:38 Keith David Bershatsky
2017-12-03 14:29 ` Eli Zaretskii
2017-12-02 22:28 Keith David Bershatsky
2017-12-03  3:32 ` Eli Zaretskii
2017-12-02 19:52 Keith David Bershatsky
2017-12-02 21:14 ` Eli Zaretskii
2017-11-30  4:29 Keith David Bershatsky
2017-11-29  6:12 Keith David Bershatsky
2017-11-29 18:04 ` Eli Zaretskii

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