Yue Wang wrote:
What about leaving the fontforge name space in LuaTeX, and create a
synoname as font loader (fontloader=fontforge)?
In the future we might want to use different font library, so the user
can switch to something they want.
(For example, Mac user might prefer to use ATS, so some volunteers can
create a binding in LuaTeX and users can choose the library using
something like "fontloader=ats")
At some point (when LuaTeX can load external system/lua library) some
active user can also develop binding for freetype2 to gain faster
speed and less memory consumption, and we can also switch to the
binding using "fontloader=freetype2"
All we need is to write the luafflib like binding code.
- as mentioned several times, the luatex dev team can (and will when
they feel they have to) change the names of libraries, functions, new
primitives etc
- since the loader is a subset and the code stripped we cannot call it
fontforge (it's the adapted loading part of ff) hence the new name
- a macro package can (if it wants) in the future make any synonym it
finds useful; there is no reason to burden the codebase with it; it can
overload the loader any time it wants
- whatever library is used at some point by a user is not up to the core
of luatex and since we will ship no such libraries their management is
also iup to the macro package, and as it is quite unlikely that all kind
of loaders behave the samesimple fontloader=myfontloader assignments
need to be managed ny a macro package anyway (if it decides to support
them in the first place)
- so, in practice, if you want to use another loader, you just hook in
your code in the font definition define callback (as you have to do now)
since the only thing that luatex expects back a tfm table, luatex does
not care how ypu produce it
- so, in your case you will end up with
fontforge = fontloader
fontloade = myfontloader
Hans
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