* Highlight/font-lock problem with non-fixed width fonts
@ 2005-02-02 15:07 Miguel Frasson
0 siblings, 0 replies; only message in thread
From: Miguel Frasson @ 2005-02-02 15:07 UTC (permalink / raw)
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Please write in English, because the Emacs maintainers do not have
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Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
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In GNU Emacs 21.3.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars)
of 2004-04-15 on bugs.devel.redhat.com
configured using `configure --host=i386-redhat-linux --build=i386-redhat-linux --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --with-pop --with-sound'
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_US
locale-coding-system: iso-latin-1
default-enable-multibyte-characters: t
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
Hi.
I am using in some lines (section title in LaTeX-mode in new AUCTeX) a
large non-fixed width font (helvetica) (AUCTeX defaults), and I use also
pc-selection-mode. I was in a long line, with non-fixed width font, that
is displayed in 2 lines. I select text in this line such that text in
both displayed lines is highlighted. Then I delete this text. Strangely,
there is a tiny (or huge, depending on what is next) area in the end of
the line that is still highlighed. An undo action, that puts the text
back and does _not_ select anything, does not paint in white again that
region.
What I think that is happening: since the text is in non-fixed font, the
end of the "picture" of the last displayed character in a line does not
coincide with the frame border. There is a white (bg color) region,
smaller in width than the next character. This region is not correctly
handled.
A screenshot demonstrating the problem is found in
http://www.math.leidenuniv.nl/~frasson/emacs-bug-highlight.png
Best regards.
Miguel.
Recent input:
<down> <up> <up> <home> <C-right> <C-right> <C-right>
<C-right> <C-right> <C-right> <C-right> <end> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<right> <right> <right> <right> <right> <left> <left>
<end> <left> <C-S-left> <C-S-left> <S-left> <S-left>
<S-left> <S-left> <delete> C-_ <backspace> <right>
<right> <right> <right> <right> <right> <left> <left>
<left> <left> <left> <left> SPC <C-right> <left> <left>
<left> <left> <C-S-right> <C-S-right> <C-S-right> <delete>
SPC / <backspace> m m m m m m m m <C-S-left> <delete>
C-_ <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu>
<report-emacs-bug>
Recent messages:
Mark set
Undo!
Mark set
Undo!
Mark set
Undo!
Mark set [2 times]
Undo!
Auto-saving...
Loading emacsbug...done
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2005-02-02 15:07 Highlight/font-lock problem with non-fixed width fonts Miguel Frasson
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