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if not modules then modules = { } end modules ['font-oti'] = {
version = 1.001,
comment = "companion to font-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local lower = string.lower
local allocate = utilities.storage.allocate
local fonts = fonts
local otf = { }
fonts.handlers.otf = otf
local otffeatures = fonts.constructors.newfeatures("otf")
local registerotffeature = otffeatures.register
registerotffeature {
name = "features",
description = "initialization of feature handler",
default = true,
}
-- these are later hooked into node and base initializaters
local otftables = otf.tables -- not always defined
local function setmode(tfmdata,value)
if value then
tfmdata.properties.mode = lower(value)
end
end
local function setlanguage(tfmdata,value)
if value then
local cleanvalue = lower(value)
local languages = otftables and otftables.languages
local properties = tfmdata.properties
if not languages then
properties.language = cleanvalue
elseif languages[value] then
properties.language = cleanvalue
else
properties.language = "dflt"
end
end
end
local function setscript(tfmdata,value)
if value then
local cleanvalue = lower(value)
local scripts = otftables and otftables.scripts
local properties = tfmdata.properties
if not scripts then
properties.script = cleanvalue
elseif scripts[value] then
properties.script = cleanvalue
else
properties.script = "dflt"
end
end
end
registerotffeature {
name = "mode",
description = "mode",
initializers = {
base = setmode,
node = setmode,
}
}
registerotffeature {
name = "language",
description = "language",
initializers = {
base = setlanguage,
node = setlanguage,
}
}
registerotffeature {
name = "script",
description = "script",
initializers = {
base = setscript,
node = setscript,
}
}
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