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--
-- This is file `luaotfload.lua',
-- generated with the docstrip utility.
--
-- The original source files were:
--
-- luaotfload.dtx (with options: `lua')
-- This is a generated file.
--
-- Copyright (C) 2009-2010 by by Elie Roux <elie.roux@telecom-bretagne.eu>
-- and Khaled Hosny <khaledhosny@eglug.org>
-- (Support: <lualatex-dev@tug.org>.)
--
-- This work is under the CC0 license.
--
-- This work consists of the main source file luaotfload.dtx
-- and the derived files
-- luaotfload.sty, luaotfload.lua
--
module('luaotfload', package.seeall)
luaotfload.module = {
name = "luaotfload",
version = 1.22,
date = "2011/01/25",
description = "OpenType layout system.",
author = "Elie Roux & Hans Hagen",
copyright = "Elie Roux",
license = "CC0"
}
local error, warning, info, log = luatexbase.provides_module(luaotfload.module)
kpse.init_prog('', 600, '/')
local luatex_version = 60
if tex.luatexversion < luatex_version then
warning('LuaTeX v%.2f is old, v%.2f is recommended.',
tex.luatexversion/100,
luatex_version /100)
end
function luaotfload.loadmodule(name)
local tofind = 'otfl-'..name
local found = kpse.find_file(tofind,"tex")
if found then
log('loading file %s.', found)
dofile(found)
else
error('file %s not found.', tofind)
end
end
luaotfload.loadmodule('luat-dum.lua') -- not used in context at all
luaotfload.loadmodule('luat-ovr.lua') -- override some luat-dum functions
luaotfload.loadmodule('data-con.lua') -- maybe some day we don't need this one
tex.attribute[0] = 0
luaotfload.loadmodule('font-ini.lua')
luaotfload.loadmodule('node-dum.lua')
luaotfload.loadmodule('node-inj.lua')
function attributes.private(name)
local attr = 'otfl@' .. name
local number = luatexbase.attributes[attr]
if not number then
number = luatexbase.new_attribute(attr)
end
return number
end
luaotfload.loadmodule('font-tfm.lua')
luaotfload.loadmodule('font-cid.lua')
luaotfload.loadmodule('font-ott.lua')
luaotfload.loadmodule('font-map.lua')
luaotfload.loadmodule('font-otf.lua')
luaotfload.loadmodule('font-otd.lua')
luaotfload.loadmodule('font-oti.lua')
luaotfload.loadmodule('font-otb.lua')
luaotfload.loadmodule('font-otn.lua')
luaotfload.loadmodule('font-ota.lua')
luaotfload.loadmodule('font-otc.lua')
luaotfload.loadmodule('font-def.lua')
luaotfload.loadmodule('font-xtx.lua')
luaotfload.loadmodule('font-dum.lua')
if fonts and fonts.tfm and fonts.tfm.readers then
fonts.tfm.readers.ofm = fonts.tfm.readers.tfm
end
luaotfload.loadmodule('font-nms.lua')
luaotfload.loadmodule('font-clr.lua')
luatexbase.create_callback("luaotfload.patch_font", "simple", function() end)
local function def_font(...)
local fontdata = fonts.define.read(...)
if type(fontdata) == "table" and fontdata.shared then
local capheight
local units = fontdata.units
local size = fontdata.size
local otfdata = fontdata.shared.otfdata
if otfdata.pfminfo.os2_capheight > 0 then
capheight = otfdata.pfminfo.os2_capheight / units * size
else
if fontdata.characters[string.byte("X")] then
capheight = fontdata.characters[string.byte("X")].height
else
capheight = otfdata.metadata.ascent / units * size
end
end
fontdata.parameters[8] = capheight
if otfdata.metadata.math then
local mc = { }
for k,v in next, otfdata.metadata.math do
if k:find("Percent") then
-- keep percent values as is
mc[k] = v
else
mc[k] = v / units * size
end
end
-- for \overwithdelims
mc.FractionDelimiterSize = 1.01 * size
mc.FractionDelimiterDisplayStyleSize = 2.39 * size
fontdata.MathConstants = mc
if mc["ScriptPercentScaleDown"] then
fontdata.parameters[10] = mc.ScriptPercentScaleDown
else -- resort to plain TeX default
fontdata.parameters[10] = 70
end
if mc["ScriptScriptPercentScaleDown"] then
fontdata.parameters[11] = mc.ScriptScriptPercentScaleDown
else -- resort to plain TeX default
fontdata.parameters[11] = 50
end
end
luatexbase.call_callback("luaotfload.patch_font", fontdata)
end
return fontdata
end
fonts.mode = "node"
local register_base_sub = fonts.otf.features.register_base_substitution
local gsubs = {
"ss01", "ss02", "ss03", "ss04", "ss05",
"ss06", "ss07", "ss08", "ss09", "ss10",
"ss11", "ss12", "ss13", "ss14", "ss15",
"ss16", "ss17", "ss18", "ss19", "ss20",
}
for _,v in next, gsubs do
register_base_sub(v)
end
luatexbase.add_to_callback('pre_linebreak_filter',
nodes.simple_font_handler,
'luaotfload.pre_linebreak_filter')
luatexbase.add_to_callback('hpack_filter',
nodes.simple_font_handler,
'luaotfload.hpack_filter')
luatexbase.reset_callback('define_font')
luatexbase.add_to_callback('define_font',
def_font,
'luaotfload.define_font', 1)
luatexbase.add_to_callback('find_vf_file',
fonts.vf.find,
'luaotfload.find_vf_file')
--
-- End of File `luaotfload.lua'.
|
