diff options
Diffstat (limited to 'tex/context/base/font-ott.lua')
| -rw-r--r-- | tex/context/base/font-ott.lua | 171 |
1 files changed, 121 insertions, 50 deletions
diff --git a/tex/context/base/font-ott.lua b/tex/context/base/font-ott.lua index 6c671d76f..c0a6c4d27 100644 --- a/tex/context/base/font-ott.lua +++ b/tex/context/base/font-ott.lua @@ -1,9 +1,10 @@ -if not modules then modules = { } end modules ['font-otf'] = { +if not modules then modules = { } end modules ['font-ott'] = { version = 1.001, comment = "companion to font-otf.lua (tables)", author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" + license = "see context related readme files", + -- dataonly = true, } local type, next, tonumber, tostring, rawget, rawset = type, next, tonumber, tostring, rawget, rawset @@ -16,11 +17,14 @@ local allocate = utilities.storage.allocate local fonts = fonts local otf = fonts.handlers.otf -local tables = { } +local otffeatures = otf.features +local registerotffeature = otffeatures.register + +local tables = otf.tables or { } otf.tables = tables -local otffeatures = fonts.constructors.newfeatures("otf") -local registerotffeature = otffeatures.register +local statistics = otf.statistics or { } +otf.statistics = statistics local scripts = allocate { ['arab'] = 'arabic', @@ -577,26 +581,26 @@ local features = allocate { ['size'] = 'optical size', ['smcp'] = 'small capitals', ['smpl'] = 'simplified forms', - ['ss01'] = 'stylistic set 1', - ['ss02'] = 'stylistic set 2', - ['ss03'] = 'stylistic set 3', - ['ss04'] = 'stylistic set 4', - ['ss05'] = 'stylistic set 5', - ['ss06'] = 'stylistic set 6', - ['ss07'] = 'stylistic set 7', - ['ss08'] = 'stylistic set 8', - ['ss09'] = 'stylistic set 9', - ['ss10'] = 'stylistic set 10', - ['ss11'] = 'stylistic set 11', - ['ss12'] = 'stylistic set 12', - ['ss13'] = 'stylistic set 13', - ['ss14'] = 'stylistic set 14', - ['ss15'] = 'stylistic set 15', - ['ss16'] = 'stylistic set 16', - ['ss17'] = 'stylistic set 17', - ['ss18'] = 'stylistic set 18', - ['ss19'] = 'stylistic set 19', - ['ss20'] = 'stylistic set 20', + -- ['ss01'] = 'stylistic set 1', + -- ['ss02'] = 'stylistic set 2', + -- ['ss03'] = 'stylistic set 3', + -- ['ss04'] = 'stylistic set 4', + -- ['ss05'] = 'stylistic set 5', + -- ['ss06'] = 'stylistic set 6', + -- ['ss07'] = 'stylistic set 7', + -- ['ss08'] = 'stylistic set 8', + -- ['ss09'] = 'stylistic set 9', + -- ['ss10'] = 'stylistic set 10', + -- ['ss11'] = 'stylistic set 11', + -- ['ss12'] = 'stylistic set 12', + -- ['ss13'] = 'stylistic set 13', + -- ['ss14'] = 'stylistic set 14', + -- ['ss15'] = 'stylistic set 15', + -- ['ss16'] = 'stylistic set 16', + -- ['ss17'] = 'stylistic set 17', + -- ['ss18'] = 'stylistic set 18', + -- ['ss19'] = 'stylistic set 19', + -- ['ss20'] = 'stylistic set 20', ['ssty'] = 'script style', -- math ['subs'] = 'subscript', ['sups'] = 'superscript', @@ -622,7 +626,11 @@ local features = allocate { ['trep'] = 'traditional tex replacements', ['tlig'] = 'traditional tex ligatures', - ['ss'] = 'stylistic set %s', + ['ss..'] = 'stylistic set ..', + ['cv..'] = 'character variant ..', + ['js..'] = 'justification ..', + + ["dv.."] = "devanagari ..", } local baselines = allocate { @@ -635,16 +643,16 @@ local baselines = allocate { ['romn'] = 'roman baseline' } -local acceptscripts = true directives.register("otf.acceptscripts", function(v) acceptscripts = v end) -local acceptlanguages = true directives.register("otf.acceptlanguages", function(v) acceptlanguages = v end) - -local report_checks = logs.reporter("fonts","checks") - tables.scripts = scripts tables.languages = languages tables.features = features tables.baselines = baselines +local acceptscripts = true directives.register("otf.acceptscripts", function(v) acceptscripts = v end) +local acceptlanguages = true directives.register("otf.acceptlanguages", function(v) acceptlanguages = v end) + +local report_checks = logs.reporter("fonts","checks") + -- hm, we overload the metatables if otffeatures.features then @@ -684,6 +692,10 @@ setmetatableindex(verboselanguages, resolve) setmetatableindex(verbosefeatures, resolve) setmetatableindex(verbosebaselines, resolve) +-- We could optimize the next lookups by using an extra metatable and storing +-- already found values but in practice there are not that many lookups so +-- it's never a bottleneck. + setmetatableindex(scripts, function(t,k) if k then k = lower(k) @@ -750,7 +762,12 @@ local function resolve(t,k) if tag and dd then local v = rawget(t,tag) if v then - return format(v,tonumber(dd)) + return v -- return format(v,tonumber(dd)) -- old way + else + local v = rawget(t,tag.."..") -- nicer in overview + if v then + return (gsub(v,"%.%.",tonumber(dd))) -- new way + end end end end @@ -760,10 +777,10 @@ end setmetatableindex(features, resolve) local function assign(t,k,v) - if k then + if k and v then v = lower(v) - rawset(t,k,v) - rawset(features,gsub(v,"[^a-z0-9]",""),k) + rawset(t,k,v) -- rawset ? + -- rawset(features,gsub(v,"[^a-z0-9]",""),k) -- why ? old code end end @@ -775,31 +792,85 @@ local checkers = { end } -function otf.features.normalize(features) -- no longer 'lang' +-- Keep this: +-- +-- function otf.features.normalize(features) +-- if features then +-- local h = { } +-- for k, v in next, features do +-- k = lower(k) +-- if k == "language" then +-- v = gsub(lower(v),"[^a-z0-9]","") +-- h.language = rawget(verboselanguages,v) or (languages[v] and v) or "dflt" -- auto adds +-- elseif k == "script" then +-- v = gsub(lower(v),"[^a-z0-9]","") +-- h.script = rawget(verbosescripts,v) or (scripts[v] and v) or "dflt" -- auto adds +-- else +-- if type(v) == "string" then +-- local b = is_boolean(v) +-- if type(b) == "nil" then +-- v = tonumber(v) or lower(v) +-- else +-- v = b +-- end +-- end +-- if not rawget(features,k) then +-- k = rawget(verbosefeatures,k) or k +-- end +-- local c = checkers[k] +-- h[k] = c and c(v) or v +-- end +-- end +-- return h +-- end +-- end + +-- inspect(fonts.handlers.otf.statistics.usedfeatures) + +local usedfeatures = statistics.usedfeatures or { } +statistics.usedfeatures = usedfeatures + +table.setmetatableindex(usedfeatures, function(t,k) if k then local v = { } t[k] = v return v end end) -- table.autotable + +storage.register("fonts/otf/usedfeatures", usedfeatures, "fonts.handlers.otf.statistics.usedfeatures" ) + +function otf.features.normalize(features) if features then local h = { } - for k, v in next, features do - k = lower(k) + for key, value in next, features do + local k = lower(key) if k == "language" then - v = gsub(lower(v),"[^a-z0-9]","") + local v = gsub(lower(value),"[^a-z0-9]","") h.language = rawget(verboselanguages,v) or (languages[v] and v) or "dflt" -- auto adds elseif k == "script" then - v = gsub(lower(v),"[^a-z0-9]","") + local v = gsub(lower(value),"[^a-z0-9]","") h.script = rawget(verbosescripts,v) or (scripts[v] and v) or "dflt" -- auto adds else - if type(v) == "string" then - local b = is_boolean(v) - if type(b) == "nil" then - v = tonumber(v) or lower(v) + local uk = usedfeatures[key] + local uv = uk[value] + if uv then + -- report_checks("feature value %q first seen at %q",value,key) + else + if type(value) == "string" then + local b = is_boolean(value) + if type(b) == "nil" then + uv = tonumber(value) or lower(value) + else + uv = b + end else - v = b + uv = v end + if not rawget(features,k) then + k = rawget(verbosefeatures,k) or k + end + local c = checkers[k] + if c then + uv = c(uv) or vc + end + uk[value] = uv end - if not rawget(features,k) then - k = rawget(verbosefeatures,k) or k - end - local c = checkers[k] - h[k] = c and c(v) or v + h[k] = uv end end return h |