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Re: Problems with move_it_in_display_line_to X when tabs exist.
From: |
Eli Zaretskii |
Subject: |
Re: Problems with move_it_in_display_line_to X when tabs exist. |
Date: |
Sat, 02 Dec 2017 23:14:33 +0200 |
> Date: Sat, 02 Dec 2017 11:52:33 -0800
> From: Keith David Bershatsky <address@hidden>
> Cc: address@hidden
>
> The test assumes:
>
> * The variable word-wrap is non-nil.
>
> * The variable tab-width is 2.
>
> * The buffer-display table entry for a tab is: [(187 . 120) (9 . 121)].
>
> * Native line numbers are _not_ enabled.
>
> I have a long line that wraps at the window edge and I put a space to
> simulate a new word that should be wrapped to the following line. To make it
> easier to read, I am using the backslash symbol (below) to signify a
> word-wrap with a space at the window edge. The next line has three "x"
> followed by a tab and then the word "hello-world". The STRETCH glyph is 22
> pixels wide; however, it.pixel_width is erroneously (?) reporting that it is
> 11 pixels wide.
>
> I have hard-coded an emacs_abort () when it.c == '\t', which means that we
> have just moved passed character 187 (aka "ยป") and we are now on a STRETCH
> tab-width.
What is the value of it.what and of it.char_to_display? And what is
the value of it.method and it.current_x?
My crystal ball says that, since your display table shows a TAB as 2
characters, the first of which is a u+00bb, and is displayed as an
11-pixel glyph, that is the display element whose metrics you are
seeing. The stretch glyph produced by the TAB from the display table
is after that.
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/02
- Re: Problems with move_it_in_display_line_to X when tabs exist.,
Eli Zaretskii <=
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/02
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/02
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/03
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/03
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/04
- Re: Problems with move_it_in_display_line_to X when tabs exist., Keith David Bershatsky, 2017/12/06