diff options
Diffstat (limited to 'src/fontloader/runtime/fontloader-reference.lua')
| -rw-r--r-- | src/fontloader/runtime/fontloader-reference.lua | 155 |
1 files changed, 104 insertions, 51 deletions
diff --git a/src/fontloader/runtime/fontloader-reference.lua b/src/fontloader/runtime/fontloader-reference.lua index 59e985d..e6738ea 100644 --- a/src/fontloader/runtime/fontloader-reference.lua +++ b/src/fontloader/runtime/fontloader-reference.lua @@ -1,6 +1,6 @@ -- merged file : c:/data/develop/context/sources/luatex-fonts-merged.lua -- parent file : c:/data/develop/context/sources/luatex-fonts.lua --- merge date : 07/01/16 16:28:20 +-- merge date : 07/13/16 15:09:54 do -- begin closure to overcome local limits and interference @@ -16267,7 +16267,7 @@ local registertracker=trackers.register local trace_injections=false registertracker("fonts.injections",function(v) trace_injections=v end) local trace_marks=false registertracker("fonts.injections.marks",function(v) trace_marks=v end) local trace_cursive=false registertracker("fonts.injections.cursive",function(v) trace_cursive=v end) -local trace_spaces=false registertracker("otf.spaces",function(v) trace_spaces=v end) +local trace_spaces=false registertracker("fonts.injections.spaces",function(v) trace_spaces=v end) local use_advance=false directives.register("fonts.injections.advance",function(v) use_advance=v end) local report_injections=logs.reporter("fonts","injections") local report_spaces=logs.reporter("fonts","spaces") @@ -17149,6 +17149,10 @@ local function inject_everything(head,where) nofmarks=nofmarks+1 marks[nofmarks]=current else +local yoffset=i.yoffset +if yoffset and yoffset~=0 then + setfield(current,"yoffset",yoffset) +end if hascursives then local cursivex=i.cursivex if cursivex then @@ -17200,10 +17204,6 @@ local function inject_everything(head,where) cursiveanchor=nil end end - local yoffset=i.yoffset - if yoffset and yoffset~=0 then - setfield(current,"yoffset",yoffset) - end local leftkern=i.leftkern if leftkern and leftkern~=0 then insert_node_before(head,current,newkern(leftkern)) @@ -17450,6 +17450,37 @@ function nodes.injections.setspacekerns(font,sequence) triggers={ [font]=sequence } end end +local getthreshold +if context then + local threshold=1 + local parameters=fonts.hashes.parameters + directives.register("otf.threshold",function(v) threshold=tonumber(v) or 1 end) + getthreshold=function(font) + local p=parameters[font] + local f=p.factor + local s=p.spacing + local t=threshold*(s and s.width or p.space or 0)-2 + return t>0 and t or 0,f + end +else + injections.threshold=0 + getthreshold=function(font) + local p=fontdata[font].parameters + local f=p.factor + local s=p.spacing + local t=injections.threshold*(s and s.width or p.space or 0)-2 + return t>0 and t or 0,f + end +end +injections.getthreshold=getthreshold +function injections.isspace(n,threshold) + if getid(n)==glue_code then + local w=getfield(n,"width") + if threshold and w>threshold then + return 32 + end + end +end local function injectspaces(head) if not triggers then return head,false @@ -17465,10 +17496,9 @@ local function injectspaces(head) local function updatefont(font,trig) leftkerns=trig.left rightkerns=trig.right - local par=fontdata[font].parameters - factor=par.factor - threshold=par.spacing.width-1 lastfont=font + threshold, + factor=getthreshold(font) end for n in traverse_id(glue_code,tonut(head)) do local prev,next=getboth(n) @@ -17487,7 +17517,7 @@ local function injectspaces(head) end end if prevchar then - local font=getfont(next) + local font=getfont(prev) local trig=triggers[font] if trig then if lastfont~=font then @@ -17500,7 +17530,7 @@ local function injectspaces(head) end if leftkern then local old=getfield(n,"width") - if old>=threshold then + if old>threshold then if rightkern then local new=old+(leftkern+rightkern)*factor if trace_spaces then @@ -17519,7 +17549,7 @@ local function injectspaces(head) leftkern=false elseif rightkern then local old=getfield(n,"width") - if old>=threshold then + if old>threshold then local new=old+rightkern*factor if trace_spaces then report_spaces("[%p -> %p] %C",nextchar,old,new) @@ -17970,11 +18000,7 @@ local trace_kernruns=false registertracker("otf.kernruns",function(v) trace_kern local trace_discruns=false registertracker("otf.discruns",function(v) trace_discruns=v end) local trace_compruns=false registertracker("otf.compruns",function(v) trace_compruns=v end) local trace_testruns=false registertracker("otf.testruns",function(v) trace_testruns=v end) -local quit_on_no_replacement=true -local zwnjruns=true local optimizekerns=true -registerdirective("otf.zwnjruns",function(v) zwnjruns=v end) -registerdirective("otf.chain.quitonnoreplacement",function(value) quit_on_no_replacement=value end) local report_direct=logs.reporter("fonts","otf direct") local report_subchain=logs.reporter("fonts","otf subchain") local report_chain=logs.reporter("fonts","otf chain") @@ -18051,6 +18077,7 @@ local getligaindex=injections.getligaindex local cursonce=true local fonthashes=fonts.hashes local fontdata=fonthashes.identifiers +local fontfeatures=fonthashes.features local otffeatures=fonts.constructors.features.otf local registerotffeature=otffeatures.register local onetimemessage=fonts.loggers.onetimemessage or function() end @@ -18070,14 +18097,8 @@ local notmatchpre={} local notmatchpost={} local notmatchreplace={} local handlers={} -local function isspace(n) - if getid(n)==glue_code then - local w=getfield(n,"width") - if w>=threshold then - return 32 - end - end -end +local isspace=injections.isspace +local getthreshold=injections.getthreshold local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end @@ -18355,7 +18376,7 @@ end end return head,base end -local function multiple_glyphs(head,start,multiple,ignoremarks) +local function multiple_glyphs(head,start,multiple,ignoremarks,what) local nofmultiples=#multiple if nofmultiples>0 then resetinjection(start) @@ -18369,6 +18390,17 @@ local function multiple_glyphs(head,start,multiple,ignoremarks) insert_node_after(head,start,n) start=n end + if what==true then + elseif what>1 then + local m=multiple[nofmultiples] + for i=2,what do + local n=copy_node(start) + resetinjection(n) + setchar(n,m) + insert_node_after(head,start,n) + start=n + end + end end return head,start,true else @@ -18439,7 +18471,7 @@ function handlers.gsub_multiple(head,start,dataset,sequence,multiple) if trace_multiples then logprocess("%s: replacing %s by multiple %s",pref(dataset,sequence),gref(getchar(start)),gref(multiple)) end - return multiple_glyphs(head,start,multiple,sequence.flags[1]) + return multiple_glyphs(head,start,multiple,sequence.flags[1],dataset[1]) end function handlers.gsub_ligature(head,start,dataset,sequence,ligature) local current=getnext(start) @@ -18894,7 +18926,7 @@ function chainprocs.gsub_multiple(head,start,stop,dataset,sequence,currentlookup if trace_multiples then logprocess("%s: replacing %s by multiple characters %s",cref(dataset,sequence),gref(startchar),gref(replacement)) end - return multiple_glyphs(head,start,replacement,sequence.flags[1]) + return multiple_glyphs(head,start,replacement,sequence.flags[1],dataset[1]) end return head,start,false end @@ -18906,7 +18938,7 @@ function chainprocs.gsub_alternate(head,start,stop,dataset,sequence,currentlooku end local kind=dataset[4] local what=dataset[1] - local value=what==true and tfmdata.shared.features[kind] or what + local value=what==true and tfmdata.shared.features[kind] or what local current=start while current do local currentchar=ischar(current) @@ -19847,16 +19879,13 @@ local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode) end end prev=getprev(prev) - elseif seq[n][32] then + elseif seq[n][32] and isspace(prev,threshold) then n=n-1 prev=getprev(prev) else match=false break end - elseif seq[n][32] then - n=n-1 - prev=getprev(prev) else match=false break @@ -19970,15 +19999,13 @@ local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode) else end current=getnext(current) - elseif seq[n][32] then + elseif seq[n][32] and isspace(current,threshold) then n=n+1 + current=getnext(current) else match=false break end - elseif seq[n][32] then - n=n+1 - current=getnext(current) else match=false break @@ -20073,7 +20100,7 @@ local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode) if replacements then head,start,done=reversesub(head,start,last,dataset,sequence,replacements,rlmode) else - done=quit_on_no_replacement + done=true if trace_contexts then logprocess("%s: skipping match",cref(dataset,sequence)) end @@ -20222,10 +20249,10 @@ local function kernrun(disc,k_run,font,attr,...) break end end - if prev and (pre or replace) and not ischar(prev,font) then + if prev and not ischar(prev,font) then prev=false end - if next and (post or replace) and not ischar(next,font) then + if next and not ischar(next,font) then next=false end if pre then @@ -20651,8 +20678,8 @@ local function featuresprocessor(head,font,attr) descriptions=tfmdata.descriptions characters=tfmdata.characters marks=tfmdata.resources.marks - factor=tfmdata.parameters.factor - threshold=tfmdata.parameters.spacing.width or 65536*10 + threshold, + factor=getthreshold(font) elseif currentfont~=font then report_warning("nested call with a different font, level %s, quitting",nesting) nesting=nesting-1 @@ -20680,15 +20707,12 @@ local function featuresprocessor(head,font,attr) local steps=sequence.steps local nofsteps=sequence.nofsteps if not steps then - local h,d,ok=handler(head,start,dataset,sequence,nil,nil,nil,0,font,attr) + local h,d,ok=handler(head,head,dataset,sequence,nil,nil,nil,0,font,attr) if ok then success=true if h then head=h end - if d then - start=d - end end elseif typ=="gsub_reversecontextchain" then local start=find_node_tail(head) @@ -20873,9 +20897,25 @@ otf.nodemodeinitializer=featuresinitializer otf.featuresprocessor=featuresprocessor otf.handlers=handlers local setspacekerns=nodes.injections.setspacekerns if not setspacekerns then os.exit() end -function otf.handlers.trigger_space_kerns(head,start,dataset,sequence,_,_,_,_,font,attr) - setspacekerns(font,sequence) - return head,start,true +if fontfeatures then + function otf.handlers.trigger_space_kerns(head,start,dataset,sequence,_,_,_,_,font,attr) + local features=fontfeatures[font] + local enabled=features.spacekern==true and features.kern==true + if enabled then + setspacekerns(font,sequence) + end + return head,start,enabled + end +else + function otf.handlers.trigger_space_kerns(head,start,dataset,sequence,_,_,_,_,font,attr) + local shared=fontdata[font].shared + local features=shared and shared.features + local enabled=features and features.spacekern==true and features.kern==true + if enabled then + setspacekerns(font,sequence) + end + return head,start,enabled + end end local function hasspacekerns(data) local sequences=data.resources.sequences @@ -20909,8 +20949,8 @@ otf.readers.registerextender { local function spaceinitializer(tfmdata,value) local resources=tfmdata.resources local spacekerns=resources and resources.spacekerns - if spacekerns==nil then - local properties=tfmdata.properties + local properties=tfmdata.properties + if value and spacekerns==nil then if properties and properties.hasspacekerns then local sequences=resources.sequences local left={} @@ -20923,7 +20963,20 @@ local function spaceinitializer(tfmdata,value) if steps then local kern=sequence.features.kern if kern then - feat=feat or kern + if feat then + for script,languages in next,kern do + local f=feat[k] + if f then + for l in next,languages do + f[l]=true + end + else + feat[script]=languages + end + end + else + feat=kern + end for i=1,#steps do local step=steps[i] local coverage=step.coverage |