I'm currently using a (bogus) set of language names in fontconfig.
FC_LANG values are intended to solve two separate problems:
1) Identifying Han fonts with appropriate glyph shapes
2) Identifying fonts likely to hold all of the glyphs needed for
a document.
Clearly "LANG" is a misnomer here -- it's not language we're interested
in, it's the character set. In particular, ISO 639 doesn't distinguish
between simplified chinese and traditional chinese. So, we need to stir
in the country code as well, much as one would when setting a locale name.
I hate to promote the horrid ANSI-C locale model, but I don't see a great
deal of choice here.
Helpful hints on suitable matching and substitution algorithms would be
greatly appreciated.
In addition, I'm thinking of automatically adding information from the
current locale to font patterns which don't specify a lang value. With
the new strong/weak FC_FAMILY bindings, this means that generic family
names will now match a locale-specific face, which seems like the right
plan.
Keith Packard XFree86 Core Team HP Cambridge Research Lab
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