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if not modules then modules = { } end modules ['font-pat'] = {
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 match, lower, find = string.match, string.lower, string.find
local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end)
local report_otf = logs.new("load otf")
-- this will become a per font patch file
--
-- older versions of latin modern didn't have the designsize set
-- so for them we get it from the name
local register = enhancers.patches.register
local function patch(data,filename)
if data.design_size == 0 then
local ds = match(file.basename(lower(filename)),"(%d+)")
if ds then
if trace_loading then
report_otf("patching design size (%s)",ds)
end
data.design_size = tonumber(ds) * 10
end
end
end
register("after","migrate metadata","^lmroman", patch)
register("after","migrate metadata","^lmsans", patch)
register("after","migrate metadata","^lmtypewriter",patch)
local function patch(data,filename)
local uni_to_ind = data.map.map
if not uni_to_ind[0x391] then
-- beware, this is a hack, features for latin often don't apply to greek
-- but lm has not much features anyway (and only greek for math)
if trace_loading then
report_otf("adding 13 greek capitals")
end
uni_to_ind[0x391] = uni_to_ind[0x41]
uni_to_ind[0x392] = uni_to_ind[0x42]
uni_to_ind[0x395] = uni_to_ind[0x45]
uni_to_ind[0x397] = uni_to_ind[0x48]
uni_to_ind[0x399] = uni_to_ind[0x49]
uni_to_ind[0x39A] = uni_to_ind[0x4B]
uni_to_ind[0x39C] = uni_to_ind[0x4D]
uni_to_ind[0x39D] = uni_to_ind[0x4E]
uni_to_ind[0x39F] = uni_to_ind[0x4F]
uni_to_ind[0x3A1] = uni_to_ind[0x52]
uni_to_ind[0x3A4] = uni_to_ind[0x54]
uni_to_ind[0x3A7] = uni_to_ind[0x58]
uni_to_ind[0x396] = uni_to_ind[0x5A]
end
end
register("after","prepare glyphs","^lmroman", patch)
register("after","prepare glyphs","^lmsans", patch)
register("after","prepare glyphs","^lmtypewriter",patch)
-- for some reason (either it's a bug in the font, or it's
-- a problem in the library) the palatino arabic fonts don't
-- have the mkmk features properly set up
local function patch(data,filename)
local gpos = data.gpos
if gpos then
for k=1,#gpos do
local v = gpos[k]
if not v.features and v.type == "gpos_mark2mark" then
if trace_loading then
report_otf("patching mkmk feature (name: %s)", v.name or "?")
end
v.features = {
{
--~ scripts = {
--~ {
--~ langs = { "ARA ", "FAR ", "URD ", "dflt" },
--~ script = "arab",
--~ },
--~ },
scripts = { arab = { "ARA " = true, "FAR " = true, "URD " = true, "dflt" = true } },
tag = "mkmk"
}
}
end
end
end
end
register("after","rehash features","palatino.*arabic",patch)
local function patch_domh(data,filename,threshold)
local m = data.metadata.math
if m then
local d = m.DisplayOperatorMinHeight or 0
if d < threshold then
if trace_loading then
report_otf("patching DisplayOperatorMinHeight(%s -> %s)",d,threshold)
end
m.DisplayOperatorMinHeight = threshold
end
end
end
register("after","check math parameters","cambria", function(data,filename) patch_domh(data,filename,2800) end)
register("after","check math parameters","cambmath",function(data,filename) patch_domh(data,filename,2800) end)
register("after","check math parameters","asana", function(data,filename) patch_domh(data,filename,1350) end)
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