[lltx] luaotfload update

[Khaled Hosny]

On Sun, Oct 16, 2011 at 07:31:39PM +0200, Patrick Gundlach wrote:
> Hi Khaled,
> 
> thanks again very much for your work on luaotfload. It's very useful.
> 
> At least one question remains: are there any changes regarding type1
> fonts? If they are not supported: do you think that a patch will break
> the compatibility with Hans' code?

I think it is fairly isolated, you need to define a type1 reader
function:

fonts.formats.pfb = "pfb"
function fonts.readers.pfb(specification)
   -- process specification
   -- load the font and process it
   -- may be apply an afm file
   return tfmtable
end

Check otfl-fonts-lua.lua for the simple lua font reader, or
otfl-font-otf.lua for the much more complex opentype readers.

Regards,
 Khaled