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if not modules then modules = { } end modules ['font-trt'] = {
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 rawget, dofile, next, type = rawget, dofile, next, type
local cleanfilename = fonts.names.cleanfilename
local splitbase = file.splitbase
--[[ldx--
<p>We provide a simple treatment mechanism (mostly because I want to demonstrate
something in a manual). It's one of the few places where an lfg file gets loaded
outside the goodies manager.</p>
--ldx]]--
local treatments = utilities.storage.allocate()
fonts.treatments = treatments
local treatmentdata = { }
treatments.data = treatmentdata
treatments.filename = "treatments.lfg"
local trace_treatments = false trackers.register("fonts.treatments", function(v) trace_treatments = v end)
local report_treatment = logs.reporter("fonts","treatment")
treatments.report = report_treatment
function treatments.trace(...)
if trace_treatments then
report_treatment(...)
end
end
-- function treatments.load(name)
-- local filename = resolvers.findfile(name)
-- if filename and filename ~= "" then
-- local goodies = dofile(filename)
-- if goodies then
-- local treatments = goodies.treatments
-- if treatments then
-- for name, data in next, treatments do
-- treatmentdata[name] = data -- always wins
-- end
-- end
-- end
-- end
-- end
table.setmetatableindex(treatmentdata,function(t,k)
local files = resolvers.findfiles(treatments.filename)
if files then
for i=1,#files do
local goodies = dofile(files[i])
if goodies then
local treatments = goodies.treatments
if treatments then
for name, data in next, treatments do
if not rawget(t,name) then
t[name] = data
end
end
end
end
end
end
table.setmetatableindex(treatmentdata,nil)
return treatmentdata[k]
end)
local function applyfix(fix,filename,data,n)
if type(fix) == "function" then
-- we assume that when needed the fix reports something
-- if trace_treatments then
-- report_treatment("applying treatment %a to file %a",n,filename)
-- end
fix(data)
elseif trace_treatments then
report_treatment("invalid treatment %a for file %a",n,filename)
end
end
function treatments.applyfixes(filename,data)
local filename = cleanfilename(filename)
local pathpart, basepart = splitbase(filename)
local treatment = treatmentdata[filename] or treatmentdata[basepart]
if treatment then
local fixes = treatment.fixes
if not fixes then
-- nothing to fix
elseif type(fixes) == "table" then
for i=1,#fixes do
applyfix(fixes[i],filename,data,i)
end
else
applyfix(fixes,filename,data,1)
end
end
end
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