diff options
Diffstat (limited to 'tex/context/base/mkiv/font-con.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-con.lua | 636 |
1 files changed, 357 insertions, 279 deletions
diff --git a/tex/context/base/mkiv/font-con.lua b/tex/context/base/mkiv/font-con.lua index b11853533..85ac33a10 100644 --- a/tex/context/base/mkiv/font-con.lua +++ b/tex/context/base/mkiv/font-con.lua @@ -9,13 +9,14 @@ if not modules then modules = { } end modules ['font-con'] = { -- some names of table entries will be changed (no _) local next, tostring, rawget = next, tostring, rawget -local format, match, lower, gsub = string.format, string.match, string.lower, string.gsub -local utfbyte = utf.byte -local sort, insert, concat, sortedkeys, serialize, fastcopy = table.sort, table.insert, table.concat, table.sortedkeys, table.serialize, table.fastcopy +local format, match, lower, gsub, find = string.format, string.match, string.lower, string.gsub, string.find +local sort, insert, concat = table.sort, table.insert, table.concat +local sortedkeys, sortedhash, serialize, fastcopy = table.sortedkeys, table.sortedhash, table.serialize, table.fastcopy local derivetable = table.derive +local ioflush = io.flush -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) -local trace_scaling = false trackers.register("fonts.scaling" , function(v) trace_scaling = v end) +local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) +local trace_scaling = false trackers.register("fonts.scaling", function(v) trace_scaling = v end) local report_defining = logs.reporter("fonts","defining") @@ -47,102 +48,6 @@ constructors.privateoffset = 0xF0000 -- 0x10FFFF constructors.cacheintex = true -- so we see the original table in fonts.font --- Some experimental helpers (handy for tracing): --- --- todo: extra: --- --- extra_space => space.extra --- space => space.width --- space_stretch => space.stretch --- space_shrink => space.shrink - --- We do keep the x-height, extra_space, space_shrink and space_stretch --- around as these are low level official names. - -constructors.keys = { - properties = { - encodingbytes = "number", - embedding = "number", - cidinfo = { }, - format = "string", - fontname = "string", - fullname = "string", - filename = "filename", - psname = "string", - name = "string", - virtualized = "boolean", - hasitalics = "boolean", - autoitalicamount = "basepoints", - nostackmath = "boolean", - noglyphnames = "boolean", - mode = "string", - hasmath = "boolean", - mathitalics = "boolean", - textitalics = "boolean", - finalized = "boolean", - }, - parameters = { - mathsize = "number", - scriptpercentage = "float", - scriptscriptpercentage = "float", - units = "cardinal", - designsize = "scaledpoints", - expansion = { - stretch = "integerscale", -- might become float - shrink = "integerscale", -- might become float - step = "integerscale", -- might become float - auto = "boolean", - }, - protrusion = { - auto = "boolean", - }, - slantfactor = "float", - extendfactor = "float", - factor = "float", - hfactor = "float", - vfactor = "float", - size = "scaledpoints", - units = "scaledpoints", - scaledpoints = "scaledpoints", - slantperpoint = "scaledpoints", - spacing = { - width = "scaledpoints", - stretch = "scaledpoints", - shrink = "scaledpoints", - extra = "scaledpoints", - }, - xheight = "scaledpoints", - quad = "scaledpoints", - ascender = "scaledpoints", - descender = "scaledpoints", - synonyms = { - space = "spacing.width", - spacestretch = "spacing.stretch", - spaceshrink = "spacing.shrink", - extraspace = "spacing.extra", - x_height = "xheight", - space_stretch = "spacing.stretch", - space_shrink = "spacing.shrink", - extra_space = "spacing.extra", - em = "quad", - ex = "xheight", - slant = "slantperpoint", - }, - }, - description = { - width = "basepoints", - height = "basepoints", - depth = "basepoints", - boundingbox = { }, - }, - character = { - width = "scaledpoints", - height = "scaledpoints", - depth = "scaledpoints", - italic = "scaledpoints", - }, -} - -- This might become an interface: local designsizes = allocate() @@ -240,7 +145,9 @@ end local unscaled = { ScriptPercentScaleDown = true, ScriptScriptPercentScaleDown = true, - RadicalDegreeBottomRaisePercent = true + RadicalDegreeBottomRaisePercent = true, + NoLimitSupFactor = true, + NoLimitSubFactor = true, } function constructors.assignmathparameters(target,original) -- simple variant, not used in context @@ -338,6 +245,41 @@ function constructors.enhanceparameters(parameters) } end +local function mathkerns(v,vdelta) + local k = { } + for i=1,#v do + local entry = v[i] + local height = entry.height + local kern = entry.kern + k[i] = { + height = height and vdelta*height or 0, + kern = kern and vdelta*kern or 0, + } + end + return k +end + +local psfake = 0 + +local function fixedpsname(psname,fallback) + local usedname = psname + if psname and psname ~= "" then + if find(psname," ") then + usedname = gsub(psname,"[%s]+","-") + else + -- we assume that the name is sane enough (we might sanitize completely some day) + end + elseif not fallback or fallback == "" then + psfake = psfake + 1 + psname = "fakename-" .. psfake + else + -- filenames can be a mess so we do a drastic cleanup + psname = fallback + usedname = gsub(psname,"[^a-zA-Z0-9]+","-") + end + return usedname, psname ~= usedname +end + function constructors.scale(tfmdata,specification) local target = { } -- the new table -- @@ -440,23 +382,22 @@ function constructors.scale(tfmdata,specification) target.format = properties.format target.cache = constructors.cacheintex and "yes" or "renew" -- - local fontname = properties.fontname or tfmdata.fontname -- for the moment we fall back on - local fullname = properties.fullname or tfmdata.fullname -- names in the tfmdata although - local filename = properties.filename or tfmdata.filename -- that is not the right place to - local psname = properties.psname or tfmdata.psname -- pass them + local fontname = properties.fontname or tfmdata.fontname + local fullname = properties.fullname or tfmdata.fullname + local filename = properties.filename or tfmdata.filename + local psname = properties.psname or tfmdata.psname local name = properties.name or tfmdata.name -- - if not psname or psname == "" then - -- name used in pdf file as well as for selecting subfont in ttc/dfont - psname = fontname or (fullname and fonts.names.cleanname(fullname)) - end + -- the psname used in pdf file as well as for selecting subfont in ttc + -- + local psname, psfixed = fixedpsname(psname,fontname or fullname or file.nameonly(filename)) + -- target.fontname = fontname target.fullname = fullname target.filename = filename target.psname = psname target.name = name -- - -- properties.fontname = fontname properties.fullname = fullname properties.filename = filename @@ -507,12 +448,16 @@ function constructors.scale(tfmdata,specification) local haskerns = properties.haskerns or properties.mode == "base" -- we can have afm in node mode local hasligatures = properties.hasligatures or properties.mode == "base" -- we can have afm in node mode local realdimensions = properties.realdimensions + local writingmode = properties.writingmode or "horizontal" + local identity = properties.identity or "horizontal" -- if changed and not next(changed) then changed = false end -- - target.type = isvirtual and "virtual" or "real" + target.type = isvirtual and "virtual" or "real" + target.writingmode = writingmode == "vertical" and "vertical" or "horizontal" + target.identity = identity == "vertical" and "vertical" or "horizontal" -- target.postprocessors = tfmdata.postprocessors -- @@ -552,13 +497,13 @@ function constructors.scale(tfmdata,specification) -- if hasmath then constructors.assignmathparameters(target,tfmdata) -- does scaling and whatever is needed - properties.hasmath = true - target.nomath = false - target.MathConstants = target.mathparameters + properties.hasmath = true + target.nomath = false + target.MathConstants = target.mathparameters else - properties.hasmath = false - target.nomath = true - target.mathparameters = nil -- nop + properties.hasmath = false + target.nomath = true + target.mathparameters = nil -- nop end -- -- Here we support some context specific trickery (this might move to a plugin). During the @@ -589,8 +534,9 @@ function constructors.scale(tfmdata,specification) -- end of context specific trickery -- if trace_defining then - report_defining("defining tfm, name %a, fullname %a, filename %a, hscale %a, vscale %a, math %a, italics %a", - name,fullname,filename,hdelta,vdelta,hasmath and "enabled" or "disabled",hasitalics and "enabled" or "disabled") + report_defining("defining tfm, name %a, fullname %a, filename %a, %spsname %a, hscale %a, vscale %a, math %a, italics %a", + name,fullname,filename,psfixed and "(fixed) " or "",psname,hdelta,vdelta, + hasmath and "enabled" or "disabled",hasitalics and "enabled" or "disabled") end -- constructors.beforecopyingcharacters(target,tfmdata) @@ -749,22 +695,15 @@ function constructors.scale(tfmdata,specification) chr.top_accent = vdelta*va end if stackmath then - local mk = character.mathkerns -- not in math ? + local mk = character.mathkerns if mk then - local kerns = { } - local v = mk.top_right if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.top_right = k end - local v = mk.top_left if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.top_left = k end - local v = mk.bottom_left if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.bottom_left = k end - local v = mk.bottom_right if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.bottom_right = k end - chr.mathkern = kerns -- singular -> should be patched in luatex ! + local tr, tl, br, bl = mk.topright, mk.topleft, mk.bottomright, mk.bottomleft + chr.mathkern = { -- singular -> should be patched in luatex ! + top_right = tr and mathkerns(tr,vdelta) or nil, + top_left = tl and mathkerns(tl,vdelta) or nil, + bottom_right = br and mathkerns(br,vdelta) or nil, + bottom_left = bl and mathkerns(bl,vdelta) or nil, + } end end if hasitalics then @@ -960,6 +899,8 @@ function constructors.finalize(tfmdata) cidinfo = tfmdata.cidinfo or nil, format = tfmdata.format or "type1", direction = tfmdata.direction or 0, + writingmode = tfmdata.writingmode or "horizontal", + identity = tfmdata.identity or "horizontal", } end if not tfmdata.resources then @@ -973,42 +914,42 @@ function constructors.finalize(tfmdata) -- tfmdata.unscaled -- if not properties.hasmath then - properties.hasmath = not tfmdata.nomath + properties.hasmath = not tfmdata.nomath end -- - tfmdata.MathConstants = nil - tfmdata.postprocessors = nil - -- - tfmdata.fontname = nil - tfmdata.filename = nil - tfmdata.fullname = nil - tfmdata.name = nil -- most tricky part - tfmdata.psname = nil - -- - tfmdata.encodingbytes = nil - tfmdata.embedding = nil - tfmdata.tounicode = nil - tfmdata.cidinfo = nil - tfmdata.format = nil - tfmdata.direction = nil - tfmdata.type = nil - tfmdata.nomath = nil - tfmdata.designsize = nil - -- - tfmdata.size = nil - tfmdata.stretch = nil - tfmdata.shrink = nil - tfmdata.step = nil - tfmdata.auto_expand = nil - tfmdata.auto_protrude = nil - tfmdata.extend = nil - tfmdata.slant = nil - tfmdata.units = nil - tfmdata.units_per_em = nil - -- - tfmdata.cache = nil - -- - properties.finalized = true + tfmdata.MathConstants = nil + tfmdata.postprocessors = nil + -- + tfmdata.fontname = nil + tfmdata.filename = nil + tfmdata.fullname = nil + tfmdata.name = nil -- most tricky part + tfmdata.psname = nil + -- + tfmdata.encodingbytes = nil + tfmdata.embedding = nil + tfmdata.tounicode = nil + tfmdata.cidinfo = nil + tfmdata.format = nil + tfmdata.direction = nil + tfmdata.type = nil + tfmdata.nomath = nil + tfmdata.designsize = nil + -- + tfmdata.size = nil + tfmdata.stretch = nil + tfmdata.shrink = nil + tfmdata.step = nil + tfmdata.auto_expand = nil + tfmdata.auto_protrude = nil + tfmdata.extend = nil + tfmdata.slant = nil + tfmdata.units = nil + tfmdata.units_per_em = nil + -- + tfmdata.cache = nil + -- + properties.finalized = true -- return tfmdata end @@ -1023,20 +964,22 @@ constructors.hashmethods = hashmethods function constructors.hashfeatures(specification) -- will be overloaded local features = specification.features if features then - local t, tn = { }, 0 - for category, list in next, features do + local t, n = { }, 0 +-- inspect(features) +-- for category, list in next, features do + for category, list in sortedhash(features) do if next(list) then local hasher = hashmethods[category] if hasher then local hash = hasher(list) if hash then - tn = tn + 1 - t[tn] = category .. ":" .. hash + n = n + 1 + t[n] = category .. ":" .. hash end end end end - if tn > 0 then + if n > 0 then return concat(t," & ") end end @@ -1053,15 +996,11 @@ hashmethods.normal = function(list) -- no need to add to hash (maybe we need a skip list) else n = n + 1 - s[n] = k + s[n] = k .. '=' .. tostring(v) end end if n > 0 then sort(s) - for i=1,n do - local k = s[i] - s[i] = k .. '=' .. tostring(list[k]) - end return concat(s,"+") end end @@ -1136,127 +1075,267 @@ setmetatableindex(formats, function(t,k) return rawget(t,file.suffix(l)) end) -local locations = { } +do -local function setindeed(mode,target,group,name,action,position) - local t = target[mode] - if not t then - report_defining("fatal error in setting feature %a, group %a, mode %a",name,group,mode) - os.exit() - elseif position then - -- todo: remove existing - insert(t, position, { name = name, action = action }) - else - for i=1,#t do - local ti = t[i] - if ti.name == name then - ti.action = action - return + local function setindeed(mode,source,target,group,name,position) + local action = source[mode] + if not action then + return + end + local t = target[mode] + if not t then + report_defining("fatal error in setting feature %a, group %a, mode %a",name,group,mode) + os.exit() + elseif position then + -- todo: remove existing + insert(t, position, { name = name, action = action }) + else + for i=1,#t do + local ti = t[i] + if ti.name == name then + ti.action = action + return + end end + insert(t, { name = name, action = action }) end - insert(t, { name = name, action = action }) end -end -local function set(group,name,target,source) - target = target[group] - if not target then - report_defining("fatal target error in setting feature %a, group %a",name,group) - os.exit() + local function set(group,name,target,source) + target = target[group] + if not target then + report_defining("fatal target error in setting feature %a, group %a",name,group) + os.exit() + end + local source = source[group] + if not source then + report_defining("fatal source error in setting feature %a, group %a",name,group) + os.exit() + end + local position = source.position + setindeed("node",source,target,group,name,position) + setindeed("base",source,target,group,name,position) + setindeed("plug",source,target,group,name,position) end - local source = source[group] - if not source then - report_defining("fatal source error in setting feature %a, group %a",name,group) - os.exit() + + local function register(where,specification) + local name = specification.name + if name and name ~= "" then + local default = specification.default + local description = specification.description + local initializers = specification.initializers + local processors = specification.processors + local manipulators = specification.manipulators + local modechecker = specification.modechecker + if default then + where.defaults[name] = default + end + if description and description ~= "" then + where.descriptions[name] = description + end + if initializers then + set('initializers',name,where,specification) + end + if processors then + set('processors', name,where,specification) + end + if manipulators then + set('manipulators',name,where,specification) + end + if modechecker then + where.modechecker = modechecker + end + end end - local node = source.node - local base = source.base - local position = source.position - if node then - setindeed("node",target,group,name,node,position) + + constructors.registerfeature = register + + function constructors.getfeatureaction(what,where,mode,name) + what = handlers[what].features + if what then + where = what[where] + if where then + mode = where[mode] + if mode then + for i=1,#mode do + local m = mode[i] + if m.name == name then + return m.action + end + end + end + end + end end - if base then - setindeed("base",target,group,name,base,position) + + local newfeatures = { } + constructors.newfeatures = newfeatures -- downward compatible + constructors.features = newfeatures + + local function setnewfeatures(what) + local handler = handlers[what] + local features = handler.features + if not features then + local tables = handler.tables -- can be preloaded + local statistics = handler.statistics -- can be preloaded + features = allocate { + defaults = { }, + descriptions = tables and tables.features or { }, + used = statistics and statistics.usedfeatures or { }, + initializers = { base = { }, node = { }, plug = { } }, + processors = { base = { }, node = { }, plug = { } }, + manipulators = { base = { }, node = { }, plug = { } }, + } + features.register = function(specification) return register(features,specification) end + handler.features = features -- will also become hidden + end + return features end + + setmetatable(newfeatures, { + __call = function(t,k) local v = t[k] return v end, + __index = function(t,k) local v = setnewfeatures(k) t[k] = v return v end, + }) + end -local function register(where,specification) - local name = specification.name - if name and name ~= "" then - local default = specification.default - local description = specification.description - local initializers = specification.initializers - local processors = specification.processors - local manipulators = specification.manipulators - local modechecker = specification.modechecker - if default then - where.defaults[name] = default - end - if description and description ~= "" then - where.descriptions[name] = description - end - if initializers then - set('initializers',name,where,specification) - end - if processors then - set('processors', name,where,specification) - end - if manipulators then - set('manipulators',name,where,specification) - end - if modechecker then - where.modechecker = modechecker +do + + local newhandler = { } + constructors.handlers = newhandler -- downward compatible + constructors.newhandler = newhandler + + local function setnewhandler(what) -- could be a metatable newindex + local handler = handlers[what] + if not handler then + handler = { } + handlers[what] = handler end + return handler end + + setmetatable(newhandler, { + __call = function(t,k) local v = t[k] return v end, + __index = function(t,k) local v = setnewhandler(k) t[k] = v return v end, + }) + end -constructors.registerfeature = register - -function constructors.getfeatureaction(what,where,mode,name) - what = handlers[what].features - if what then - where = what[where] - if where then - mode = where[mode] - if mode then - for i=1,#mode do - local m = mode[i] - if m.name == name then - return m.action +do + -- a pitty that we need to be generic as we have nicer mechanisms for this ... + + local newenhancer = { } + constructors.enhancers = newenhancer + constructors.newenhancer = newenhancer + + local function setnewenhancer(format) + + local handler = handlers[format] + local enhancers = handler.enhancers + + if not enhancers then + + local actions = allocate() + local before = allocate() + local after = allocate() + local order = allocate() + local patches = { before = before, after = after } + + local trace = false + local report = logs.reporter("fonts",format .. " enhancing") + + trackers.register(format .. ".loading", function(v) trace = v end) + + local function enhance(name,data,filename,raw) + local enhancer = actions[name] + if enhancer then + if trace then + report("apply enhancement %a to file %a",name,filename) + ioflush() end + enhancer(data,filename,raw) + else + -- no message as we can have private ones end end + + local function apply(data,filename,raw) + local basename = file.basename(lower(filename)) + if trace then + report("%s enhancing file %a","start",filename) + end + ioflush() -- we want instant messages + for e=1,#order do + local enhancer = order[e] + local b = before[enhancer] + if b then + for pattern, action in next, b do + if find(basename,pattern) then + action(data,filename,raw) + end + end + end + enhance(enhancer,data,filename,raw) + local a = after[enhancer] + if a then + for pattern, action in next, a do + if find(basename,pattern) then + action(data,filename,raw) + end + end + end + ioflush() -- we want instant messages + end + if trace then + report("%s enhancing file %a","stop",filename) + end + ioflush() -- we want instant messages + end + + local function register(what,action) + if action then + if actions[what] then + -- overloading, e.g."check extra features" + else + order[#order+1] = what + end + actions[what] = action + else + report("bad enhancer %a",what) + end + end + + -- fonts.constructors.otf.enhancers.patch("before","migrate metadata","cambria",function() end) + + local function patch(what,where,pattern,action) + local pw = patches[what] + if pw then + local ww = pw[where] + if ww then + ww[pattern] = action + else + pw[where] = { [pattern] = action} + end + end + end + + enhancers = { + register = register, + apply = apply, + patch = patch, + patches = { register = patch }, -- for old times sake + } + + handler.enhancers = enhancers end + return enhancers end -end -function constructors.newhandler(what) -- could be a metatable newindex - local handler = handlers[what] - if not handler then - handler = { } - handlers[what] = handler - end - return handler -end + setmetatable(newenhancer, { + __call = function(t,k) local v = t[k] return v end, + __index = function(t,k) local v = setnewenhancer(k) t[k] = v return v end, + }) -function constructors.newfeatures(what) -- could be a metatable newindex - local handler = handlers[what] - local features = handler.features - if not features then - local tables = handler.tables -- can be preloaded - local statistics = handler.statistics -- can be preloaded - features = allocate { - defaults = { }, - descriptions = tables and tables.features or { }, - used = statistics and statistics.usedfeatures or { }, - initializers = { base = { }, node = { } }, - processors = { base = { }, node = { } }, - manipulators = { base = { }, node = { } }, - } - features.register = function(specification) return register(features,specification) end - handler.features = features -- will also become hidden - end - return features end --[[ldx-- @@ -1286,7 +1365,6 @@ function constructors.initializefeatures(what,tfmdata,features,trace,report) local properties = tfmdata.properties or { } -- brrr local whathandler = handlers[what] local whatfeatures = whathandler.features - local whatinitializers = whatfeatures.initializers local whatmodechecker = whatfeatures.modechecker -- properties.mode can be enforces (for instance in font-otd) local mode = properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base" |