On 17/11/2021 09:48, Marcel Fabian Krüger wrote:
The string quotes don't have any special meaning in XeTeX. The font name
is read using TeX's normal file scanning routine which (at least for TeX
Live) uses string quotes to allow embedding spaces in the name and then
discards them. Therefore they never reach the parts of XeTeX where the
decision between system fonts and classical fonts is made.
If you want to load the font by fontname, you can try to add a colon
instead to add an empy feature string. Then the TFM file isn't found. So
you would have e.g. `\font \cmr = "cmr10:"` (I haven't checked if the
font is actually found by that name, but if you have an OpenType font
with fontname cmr10 installed than this would work)
Many thanks for your comments, Marcel, but I am still somewhat
confused. The XeTeX manual says :
This distinction between file name lookups and system font name
lookups is crucial
to understanding XƎTEX’s behavior and to writing portable documents
(in short: don’t
use system fonts).
System font name lookups use (except on Mac OS X) the fontconfig
library; running
fc-list should show you the font names available. E.g.,
\font\1="Liberation Serif" /look for OS-installed font/
which suggested to me that it was the string quotes that were forcing
XeTeX to look for an OS-installed (i.e., system) font. And when I try :
\font \cmr = "cmr10:"
\cmr
The quick brown fox jumps right over the laxy dog's back.
\end
I am told :
This is XeTeX, Version 3.141592653-2.6-0.999993 (TeX Live 2021/W32TeX)
(preloaded format=xetex)
restricted \write18 enabled.
entering extended mode
(./untitled-5.tex
! Font \cmr=cmr10: not loadable: Metric (TFM) file or installed font
not found.
<to be read again>
\cmr
l.4 \cmr
?
As reported earlier, Tom's "cmr10.otf" /is/ installed, but your
suggested syntax appears not to find it. And it is not found with
"\font \cmr = "CMR10 Regular:", but /is/ found with \font \cmr =
"CMR10:". Curiouser and curiouser !
Oh, and \font \cmr = "CMR9:" fails, so at least I have a way of forcing
a system font to be used, even if I have to upper-case the name. But I
am still very concerned that \font \cmr = "CMR10.xyz:" finds the font
and reports no error.
--
/Philip Taylor/
