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Re: Unicode fonts on Debian

Edward H. Trager wrote:
On Saturday 2003.12.13 15:23:30 +0100, Jan Willem Stumpel wrote:

Does anyone have a step-by-step description of how to install
Bitstream Cyberbit in Debian Sid? And similarly for (MS) Arialuni?

I am still puzzled on when exactly what font is used for display
and for printing in the various Mozilla versions. Each time I
think 'I got it' it turns out that 'I didn´t get it'...



I don't know whether the following page will answer your question or not:

http://eyegene.ophthy.med.umich.edu/unicode/#fonts


In Edit|Preferences|Appearance|Fonts, Mozilla provides options for specifying fonts
for various script encodings, so you should be able to fine tune exactly which fonts
get used.

I wouldn't use 'fine-tune' and 'exactly'. As I wrote in my previous messages, Mozilla's
font selection algorithm is complex and Mozilla contributors (including myself) have put
a lot of time and efforts, but still there are issues. Besides, Mozilla's font selection
menu is NOT per 'font encoding' BUT per 'langGroup' (which had better be called
'script group'). Only in Mozilla-X11core build, the loose mapping between
'font encodings' (XLFD-based) and 'langGroups' exists.

There is also a checkbox to "Allow documents to use other fonts" which I
assume means that if the right glyph isn't found in the specified Unicode font, a glyph will get picked from whatever remaining installed font has that glyph.

No, that doesn't mean that. That checkbox controls whether or not author-specified
fonts (via font-family in CSS and font-face in old style html) should be given a higher priority
than fonts configured in Mozilla's font selection menu. If it's not checked, author-specified
fonts are ignored.


> I see
this happen when I view Chinese pages with unusual characters in them.

Whether the above option is turned on or not, Mozilla does its best to render every character.
If it fails, it falls back to transliteration on Windows and Linux (if X11core-build is used).
In case of Mozilla-Xft, it uses 4 (BMP) or 6 digit (non-BMP) hex number inside a
rectangle.

Jungshik


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