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if not modules then modules = { } end modules ['good-gen'] = {
version = 1.000,
comment = "companion to font-lib.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- depends on ctx
local type, next = type, next
local lower = string.lower
local fonts = fonts
----- trace_goodies = false trackers.register("fonts.goodies", function(v) trace_goodies = v end)
----- report_goodies = logs.reporter("fonts","goodies")
local allocate = utilities.storage.allocate
local texsp = tex.sp
local fontgoodies = fonts.goodies or { }
local findfile = resolvers.findfile
local typefaces = fonts.typefaces or { }
fonts.typefaces = typefaces
-- the following takes care of explicit file specifications
--
-- files = {
-- name = "antykwapoltawskiego",
-- list = {
-- ["AntPoltLtCond-Regular.otf"] = {
-- -- name = "antykwapoltawskiego",
-- style = "regular",
-- weight = "light",
-- width = "condensed",
-- },
-- },
-- }
-- files
local function initialize(goodies)
local files = goodies.files
if files then
fonts.names.register(files)
end
end
fontgoodies.register("files", initialize)
-- some day we will have a define command and then we can also do some
-- proper tracing
--
-- fonts.typefaces["antykwapoltawskiego-condensed"] = {
-- shortcut = "rm",
-- shape = "serif",
-- fontname = "antykwapoltawskiego",
-- normalweight = "light",
-- boldweight = "medium",
-- width = "condensed",
-- size = "default",
-- features = "default",
-- }
local function initialize(goodies)
local typefaces = goodies.typefaces
if typefaces then
local ft = fonts.typefaces
for k, v in next, typefaces do
ft[k] = v
end
end
end
fontgoodies.register("typefaces", initialize)
local compositions = { }
function fontgoodies.getcompositions(tfmdata)
return compositions[file.nameonly(tfmdata.properties.filename or "")]
end
local function initialize(goodies)
local gc = goodies.compositions
if gc then
for k, v in next, gc do
compositions[k] = v
end
end
end
fontgoodies.register("compositions", initialize)
-- extra treatments (on top of defaults): \loadfontgoodies[mytreatments]
local treatmentdata = fonts.treatments.data
local function initialize(goodies)
local treatments = goodies.treatments
if treatments then
for name, data in next, treatments do
treatmentdata[name] = data -- always wins
end
end
end
fontgoodies.register("treatments", initialize)
local filenames = fontgoodies.filenames or allocate()
fontgoodies.filenames = filenames
local filedata = filenames.data or allocate()
filenames.data = filedata
local function initialize(goodies) -- design sizes are registered global
local fn = goodies.filenames
if fn then
for usedname, alternativenames in next, fn do
filedata[usedname] = alternativenames
end
end
end
fontgoodies.register("filenames", initialize)
function fontgoodies.filenames.resolve(name)
local fd = filedata[name]
if fd and findfile(name) == "" then
for i=1,#fd do
local fn = fd[i]
if findfile(fn) ~= "" then
return fn
end
end
else
-- no lookup, just use the regular mechanism
end
return name
end
local designsizes = fontgoodies.designsizes or allocate()
fontgoodies.designsizes = designsizes
local designdata = designsizes.data or allocate()
designsizes.data = designdata
local function initialize(goodies) -- design sizes are registered global
local gd = goodies.designsizes
if gd then
for name, data in next, gd do
local ranges = { }
for size, file in next, data do
if size ~= "default" then
ranges[#ranges+1] = { texsp(size), file } -- also lower(file)
end
end
table.sort(ranges,function(a,b) return a[1] < b[1] end)
designdata[lower(name)] = { -- overloads, doesn't merge!
default = data.default,
ranges = ranges,
}
end
end
end
fontgoodies.register("designsizes", initialize)
function fontgoodies.designsizes.register(name,size,specification)
local d = designdata[name]
if not d then
d = {
ranges = { },
default = nil, -- so we have no default set
}
designdata[name] = d
end
if size == "default" then
d.default = specification
else
if type(size) == "string" then
size = texsp(size) -- hm
end
local ranges = d.ranges
ranges[#ranges+1] = { size, specification }
end
end
function fontgoodies.designsizes.filename(name,spec,size) -- returns nil of no match
local data = designdata[lower(name)]
if data then
if not spec or spec == "" or spec == "default" then
return data.default
elseif spec == "auto" then
local ranges = data.ranges
if ranges then
for i=1,#ranges do
local r = ranges[i]
if r[1] >= size then -- todo: rounding so maybe size - 100
return r[2]
end
end
end
return data.default or (ranges and ranges[#ranges][2])
end
end
end
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