Re: weird treatment of ' and `

[Daniel Pfeiffer]

Hi,

I wrote:

> These two quotes, even though they are plain Ascii, seem to come from another 
> font.  This has several undesirable effects:
> 
> - Their underlines (if any) will be one pixel lower than those of neighboring 
> characters.
> 
> - When inserting them, all following lines scroll down one pixel, or back up 
> one pixel when deleting them.
> 
> - When at least one appears, there will be an empty line at the bottom of the 
> window.  This happens with M-x shell, C-- C-l or in the minibuffer.
> 
> - I compiled Emacs with gtk after installing SuSE Linux 9.0 and transferred 
> it to a machine still running under SuSE Linux 8.2.  Due to some font 
> differences that machine showed empty boxes for the quotes.  I have since 
> updated that machine too, and the behaviour is now the same as described 
> above.
> 
> In GNU Emacs 21.3.50.3 (i686-pc-linux-gnu, GTK+ Version 2.2.3)
>  of 2003-10-19 on pfdabpc
> configured using `configure '--with-gtk' 
> '--with-pkg-config-prog=/tmp/pkgconfig-0.15.0/pkg-config' 'CFLAGS=-O2 
> -march=pentium3''
> 
> Important settings:
>   value of $LC_ALL: nil
>   value of $LC_COLLATE: POSIX
>   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: address@hidden
>   locale-coding-system: iso-latin-9
>   default-enable-multibyte-characters: t
> 
> Major mode: Fundamental
> 
> Minor modes in effect:
>   show-paren-mode: t
>   mouse-wheel-mode: t
>   menu-bar-mode: t
>   global-font-lock-mode: t
>   unify-8859-on-encoding-mode: t
>   line-number-mode: t

I noticed this when I first tried Emacs with GTK.  I compiled that way as soon 
as I installed SuSE Linux 9.0 with gtk2-devel-2.2.3-27 rpm.  But I threw out 
GTK because it can't yet handle make-frame-on-display.

So I fount that default Emacs has the same annoying bug I describe above.  So, 
either it was introduced in CVS around the same time I upgraded.  Or SuSE 9.0 
has some different setup that makes Emacs go wrong.  If this was happening for 
a runic or other weird character I'd go for that explanation.  But I don't see 
how SuSE could influence this for a plain 7-bit Ascii character.

I looked at the font in xfd.  ", ' and ` all have the same ascent of 12 and 
descent of -8.  But " doesn't trigger this behaviour.

coralament / best Grötens / liebe Grüße / best regards / elkorajn salutojn
Daniel Pfeiffer

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