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Diffstat (limited to 'tex/context/base/mkiv/font-trt.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-trt.lua | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/font-trt.lua b/tex/context/base/mkiv/font-trt.lua new file mode 100644 index 000000000..abc92ba52 --- /dev/null +++ b/tex/context/base/mkiv/font-trt.lua @@ -0,0 +1,116 @@ +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 +local lower = string.lower + +--[[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 = fonts.treatments or { } +fonts.treatments = treatments + +local treatmentdata = treatments.data or utilities.storage.allocate() +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 + +function treatments.ignoredfile(fullname) + local treatmentdata = treatments.data or { } -- when used outside context + local _, basepart = splitbase(fullname) + local treatment = treatmentdata[basepart] or treatmentdata[lower(basepart)] + if treatment and treatment.ignored then + report_treatment("font file %a resolved as %a is ignored, reason %a",basepart,fullname,treatment.comment or "unknown") + return true + end +end + +fonts.names.ignoredfile = treatments.ignoredfile |