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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) 2009-2013 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 = 1.29,
date = "2013/04/25",
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(tofind)
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
local loadmodule = luaotfload.loadmodule
loadmodule"luaotfload-legacy-merged.lua"
if not fonts then
loadmodule("otfl-luat-dum.lua") -- not used in context at all
loadmodule("otfl-luat-ovr.lua") -- override some luat-dum functions
loadmodule("otfl-data-con.lua") -- maybe some day we don't need this one
loadmodule("otfl-font-ini.lua")
loadmodule("otfl-node-dum.lua")
loadmodule("otfl-node-inj.lua")
loadmodule("luaotfload-legacy-attributes.lua") -- patch attributes
loadmodule("otfl-font-tfm.lua")
loadmodule("otfl-font-cid.lua")
loadmodule("otfl-font-ott.lua")
loadmodule("otfl-font-map.lua")
loadmodule("otfl-font-otf.lua")
loadmodule("otfl-font-otd.lua")
loadmodule("otfl-font-oti.lua")
loadmodule("otfl-font-otb.lua")
loadmodule("otfl-font-otn.lua")
loadmodule("otfl-font-ota.lua")
loadmodule("otfl-font-otc.lua")
loadmodule("otfl-font-def.lua")
loadmodule("otfl-font-xtx.lua")
loadmodule("otfl-font-dum.lua")
loadmodule("otfl-font-clr.lua")
end
loadmodule"luaotfload-legacy-database.lua" --- unmerged coz needed in db script
if fonts and fonts.tfm and fonts.tfm.readers then
fonts.tfm.readers.ofm = fonts.tfm.readers.tfm
end
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 otfdata = fontdata.shared.otfdata
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 / fontdata.units * fontdata.size
end
end
-- for \overwithdelims
mc.FractionDelimiterSize = 1.01 * fontdata.size
mc.FractionDelimiterDisplayStyleSize = 2.39 * fontdata.size
fontdata.MathConstants = mc
end
luatexbase.call_callback("luaotfload.patch_font", fontdata)
end
return fontdata
end
--fonts.define.resolvers.file = fonts.define.resolvers.name
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")
local function set_sscale_diments(fontdata)
local mc = fontdata.MathConstants
if mc then
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
end
luatexbase.add_to_callback("luaotfload.patch_font", set_sscale_diments, "unicodemath.set_sscale_diments")
--
-- End of File `luaotfload.lua'.
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