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if not modules then modules = { } end modules ["loaders"] = {
version = "2.3a",
comment = "companion to luaotfload.lua",
author = "Hans Hagen, Khaled Hosny, Elie Roux, Philipp Gesang",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local fonts = fonts
local readers = fonts.readers
---
--- opentype reader (from font-otf.lua):
--- (spec : table) -> (suffix : string) -> (format : string) -> (font : table)
---
local pfb_reader = function (specification)
return readers.opentype(specification,"pfb","type1")
end
local pfa_reader = function (specification)
return readers.opentype(specification,"pfa","type1")
end
fonts.formats.pfb = "type1"
fonts.readers.pfb = pfb_reader
fonts.handlers.pfb = { } --- empty, as with tfm
fonts.formats.pfa = "type1"
fonts.readers.pfa = pfa_reader
fonts.handlers.pfa = { }
resolvers.openbinfile = function (filename)
if filename and filename ~= "" then
local f = io.open(filename,"rb")
if f then
--logs.show_load(filename)
local s = f:read("*a") -- io.readall(f) is faster but we never have large files here
if checkgarbage then
checkgarbage(#s)
end
f:close()
if s then
return true, s, #s
end
end
end
return loaders.notfound()
end
resolvers.loadbinfile = function (filename, filetype)
local fname = kpse.find_file (filename, filetype)
if fname and fname ~= "" then
return resolvers.openbinfile(fname)
else
return resolvers.loaders.notfound()
end
end
--[[ <EXPERIMENTAL> ]]
--[[doc--
Here we load extra AFM libraries from Context.
In fact, part of the AFM support is contained in font-ext.lua, for
which the font loader has a replacement: luatex-fonts-ext.lua.
However, this is only a stripped down version with everything AFM
removed. For example, it lacks definitions of several AFM features
like italic correction, protrusion, expansion and so on. In order to
achieve full-fledged AFM support we will either have to implement our
own version of these or consult with Hans whether he would consider
including the AFM code with the font loader.
For the time being we stick with two AFM-specific libraries:
font-afm.lua and font-afk.lua. When combined, these already supply us
with basic features like kerning and ligatures. The rest can be added
in due time.
--doc]]--
require "luaotfload-font-afm.lua"
require "luaotfload-font-afk.lua"
--[[ </EXPERIMENTAL> ]]
-- vim:tw=71:sw=2:ts=2:expandtab
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