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-rw-r--r--src/fontloader/misc/fontloader-font-otd.lua268
1 files changed, 0 insertions, 268 deletions
diff --git a/src/fontloader/misc/fontloader-font-otd.lua b/src/fontloader/misc/fontloader-font-otd.lua
deleted file mode 100644
index 64cb1bc..0000000
--- a/src/fontloader/misc/fontloader-font-otd.lua
+++ /dev/null
@@ -1,268 +0,0 @@
-if not modules then modules = { } end modules ['font-otd'] = {
- 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 type = type
-local match = string.match
-local sequenced = table.sequenced
-
-local trace_dynamics = false trackers.register("otf.dynamics", function(v) trace_dynamics = v end)
-local trace_applied = false trackers.register("otf.applied", function(v) trace_applied = v end)
-
-local report_otf = logs.reporter("fonts","otf loading")
-local report_process = logs.reporter("fonts","otf process")
-
-local allocate = utilities.storage.allocate
-
-local fonts = fonts
-local otf = fonts.handlers.otf
-local hashes = fonts.hashes
-local definers = fonts.definers
-local constructors = fonts.constructors
-local specifiers = fonts.specifiers
-
-local fontidentifiers = hashes.identifiers
-local fontresources = hashes.resources
-local fontproperties = hashes.properties
-local fontdynamics = hashes.dynamics
-
-local contextsetups = specifiers.contextsetups
-local contextnumbers = specifiers.contextnumbers
-local contextmerged = specifiers.contextmerged
-
-local setmetatableindex = table.setmetatableindex
-
-local a_to_script = { }
-local a_to_language = { }
-
--- we can have a scripts hash in fonts.hashes
-
-function otf.setdynamics(font,attribute)
- -- local features = contextsetups[contextnumbers[attribute]] -- can be moved to caller
- local features = contextsetups[attribute]
- if features then
- local dynamics = fontdynamics[font]
- dynamic = contextmerged[attribute] or 0
- local script, language
- if dynamic == 2 then -- merge
- language = features.language or fontproperties[font].language or "dflt"
- script = features.script or fontproperties[font].script or "dflt"
- else -- if dynamic == 1 then -- replace
- language = features.language or "dflt"
- script = features.script or "dflt"
- end
- if script == "auto" then
- -- checkedscript and resources are defined later so we cannot shortcut them -- todo: make installer
- script = definers.checkedscript(fontidentifiers[font],fontresources[font],features)
- end
- local ds = dynamics[script] -- can be metatable magic (less testing)
--- or dynamics.dflt
- if not ds then
- ds = { }
- dynamics[script] = ds
- end
- local dsl = ds[language]
--- or ds.dflt
- if not dsl then
- dsl = { }
- ds[language] = dsl
- end
- local dsla = dsl[attribute]
- if not dsla then
- local tfmdata = fontidentifiers[font]
- a_to_script [attribute] = script
- a_to_language[attribute] = language
- -- we need to save some values .. quite messy
- local properties = tfmdata.properties
- local shared = tfmdata.shared
- local s_script = properties.script
- local s_language = properties.language
- local s_mode = properties.mode
- local s_features = shared.features
- properties.mode = "node"
- properties.language = language
- properties.script = script
- properties.dynamics = true -- handy for tracing
- shared.features = { }
- -- end of save
- local set = constructors.checkedfeatures("otf",features)
- set.mode = "node" -- really needed
- dsla = otf.setfeatures(tfmdata,set)
- if trace_dynamics then
- report_otf("setting dynamics %s: attribute %a, script %a, language %a, set %a",contextnumbers[attribute],attribute,script,language,set)
- end
- -- we need to restore some values
- properties.script = s_script
- properties.language = s_language
- properties.mode = s_mode
- shared.features = s_features
- -- end of restore
- dynamics[script][language][attribute] = dsla -- cache
- elseif trace_dynamics then
- -- report_otf("using dynamics %s: attribute %a, script %a, language %a",contextnumbers[attribute],attribute,script,language)
- end
- return dsla
- end
-end
-
-function otf.scriptandlanguage(tfmdata,attr)
- local properties = tfmdata.properties
- if attr and attr > 0 then
- return a_to_script[attr] or properties.script or "dflt", a_to_language[attr] or properties.language or "dflt"
- else
- return properties.script or "dflt", properties.language or "dflt"
- end
-end
-
--- we reimplement the dataset resolver
-
-local autofeatures = fonts.analyzers.features
-local featuretypes = otf.tables.featuretypes
-local defaultscript = otf.features.checkeddefaultscript
-local defaultlanguage = otf.features.checkeddefaultlanguage
-
-local resolved = { } -- we only resolve a font,script,language,attribute pair once
-local wildcard = "*"
-
--- what about analyze in local and not in font
-
--- needs checking: some added features can pass twice
-
-local P, C, Cc, lpegmatch = lpeg.P, lpeg.C, lpeg.Cc, lpeg.match
-
-local pattern = P("always") * (P(-1) * Cc(true) + P(":") * C((1-P(-1))^1))
-
-local function initialize(sequence,script,language,s_enabled,a_enabled,font,attr,dynamic,ra,autoscript,autolanguage)
- local features = sequence.features
- if features then
- local order = sequence.order
- if order then
- local featuretype = featuretypes[sequence.type or "unknown"]
- for i=1,#order do --
- local kind = order[i] --
- local e_e
- local a_e = a_enabled and a_enabled[kind] -- the value (location)
- if a_e ~= nil then
- e_e = a_e
- else
- e_e = s_enabled and s_enabled[kind] -- the value (font)
- end
- if e_e then
- local valid = type(e_e) == "string" and lpegmatch(pattern,e_e)
- if valid then
- -- we have hit always
- local attribute = autofeatures[kind] or false
- if trace_applied then
- report_process(
- "font %s, dynamic %a (%a), feature %a, script %a, language %a, lookup %a, value %a",
- font,attr or 0,dynamic,kind,"*","*",sequence.name,valid)
- end
- ra[#ra+1] = { valid, attribute, sequence, kind }
- else
- -- we already checked for e_e
- local scripts = features[kind] --
- local languages = scripts[script] or scripts[wildcard]
- if not languages and autoscript then
- langages = defaultscript(featuretype,autoscript,scripts)
- end
- if languages then
- -- we need detailed control over default becase we want to trace
- -- only first attribute match check, so we assume simple fina's
- -- local valid = false
- if languages[language] then
- valid = e_e
- elseif languages[wildcard] then
- valid = e_e
- elseif autolanguage and defaultlanguage(featuretype,autolanguage,languages) then
- valid = e_e
- end
- end
- if valid then
- local attribute = autofeatures[kind] or false
- if trace_applied then
- report_process(
- "font %s, dynamic %a (%a), feature %a, script %a, language %a, lookup %a, value %a",
- font,attr or 0,dynamic,kind,script,language,sequence.name,valid)
- end
- ra[#ra+1] = { valid, attribute, sequence, kind }
- end
- end
- end
- end
- end
- end
-end
-
--- there is some fuzzy language/script state stuff in properties (temporary)
-
-function otf.dataset(tfmdata,font,attr) -- attr only when explicit (as in special parbuilder)
-
- local script, language, s_enabled, a_enabled, dynamic
-
- if attr and attr ~= 0 then
- dynamic = contextmerged[attr] or 0
- -- local features = contextsetups[contextnumbers[attr]] -- could be a direct list
- local features = contextsetups[attr]
- a_enabled = features -- location based
- if dynamic == 1 then -- or dynamic == -1 then
- -- replace
- language = features.language or "dflt"
- script = features.script or "dflt"
- elseif dynamic == 2 then -- or dynamic == -2 then
- -- merge
- local properties = tfmdata.properties
- s_enabled = tfmdata.shared.features -- font based
- language = features.language or properties.language or "dflt"
- script = features.script or properties.script or "dflt"
- else
- -- error
- local properties = tfmdata.properties
- language = properties.language or "dflt"
- script = properties.script or "dflt"
- end
- else
- local properties = tfmdata.properties
- language = properties.language or "dflt"
- script = properties.script or "dflt"
- s_enabled = tfmdata.shared.features -- can be made local to the resolver
- dynamic = 0
- end
-
- local res = resolved[font]
- if not res then
- res = { }
- resolved[font] = res
- end
- local rs = res[script]
- if not rs then
- rs = { }
- res[script] = rs
- end
- local rl = rs[language]
- if not rl then
- rl = { }
- rs[language] = rl
- end
- local ra = rl[attr]
- if ra == nil then -- attr can be false
- ra = {
- -- indexed but we can also add specific data by key in:
- }
- rl[attr] = ra
- local sequences = tfmdata.resources.sequences
- if sequences then
- local autoscript = (s_enabled and s_enabled.autoscript ) or (a_enabled and a_enabled.autoscript )
- local autolanguage = (s_enabled and s_enabled.autolanguage) or (a_enabled and a_enabled.autolanguage)
- for s=1,#sequences do
- -- just return nil or ra step
- initialize(sequences[s],script,language,s_enabled,a_enabled,font,attr,dynamic,ra,autoscript,autolanguage)
- end
- end
- end
- return ra
-
-end