[Konsole-devel] [Bug 57602] Character fragments remain on screen

[Stefan Baums]

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http://bugs.kde.org/show_bug.cgi?id=57602     




------- Additional Comments From baums at u.washington.edu  2003-04-30 06:18 -------
I can confirm this bug, the same happens here (Debian GNU/Linux testing with KDE
from unstable: konsole 3.1.1, fontconfig 2.2.0).  The same sort of scattering
happens with unusual accented Latin characters (like a with macron) that
fontconfig usually has to take from a different font than the normal konsole
font.  Another big problem is the display of Cyrillic characters, where konsole
is mistakenly trying to display the glyphs as double-width and screws up the
display royally (this would seem to be a different bug, though, and I hope to
get around to filing it as such).

Concerning the original reporters no. 2 (the different sorts of "minus" sign): 
The character that does not get displayed in man pages is the correct Unicode
hyphen sign (U+2010) which is regrettably not contained in many fonts.  I know
for a fact, though, that it is available in some fonts on my system, so it is a
bug in either konsole or fontconfig that they do not find the glyph in those
fonts and use it for display.  The similar character that does get displayed
correctly is the ubiquitous hyphen-minus (U+002D) which is contained in pretty
much every font but should not be used to represent a true hyphen because of its
ambiguity.  (It should, however, be used for Unix command-line arguments, so it
is arguably a bug in the man / grep or certain manpages that they try to use
U+2010 for the character introducing command-line arguments.)

Stefan