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authorContext Git Mirror Bot <phg42.2a@gmail.com>2015-09-01 11:15:08 +0200
committerContext Git Mirror Bot <phg42.2a@gmail.com>2015-09-01 11:15:08 +0200
commitf4508b5b95b4fc2b3ed59aaa28a8dfc1a667360a (patch)
tree74d5ca2ad226b4b8fa07c512f433c11b7b9acaaf /tex/generic
parentdb76d739a1e8dc1faa0ba194d4d4f2d6081e9ae7 (diff)
downloadcontext-f4508b5b95b4fc2b3ed59aaa28a8dfc1a667360a.tar.gz
2015-09-01 11:12:00
Diffstat (limited to 'tex/generic')
-rw-r--r--tex/generic/context/luatex/luatex-fonts-inj.lua291
-rw-r--r--tex/generic/context/luatex/luatex-fonts-merged.lua1234
-rw-r--r--tex/generic/context/luatex/luatex-fonts-otn.lua1225
-rw-r--r--tex/generic/context/luatex/luatex-fonts.lua2
4 files changed, 2134 insertions, 618 deletions
diff --git a/tex/generic/context/luatex/luatex-fonts-inj.lua b/tex/generic/context/luatex/luatex-fonts-inj.lua
index 332e92033..cdf14b935 100644
--- a/tex/generic/context/luatex/luatex-fonts-inj.lua
+++ b/tex/generic/context/luatex/luatex-fonts-inj.lua
@@ -8,7 +8,16 @@ if not modules then modules = { } end modules ['font-inj'] = {
-- This property based variant is not faster but looks nicer than the attribute one. We
-- need to use rawget (which is apbout 4 times slower than a direct access but we cannot
--- get/set that one for our purpose!
+-- get/set that one for our purpose! This version does a bit more with discretionaries
+-- (and Kai has tested it with his collection of weird fonts.)
+
+-- There is some duplicate code here (especially in the the pre/post/replace branches) but
+-- we go for speed. We could store a list of glyph and mark nodes when registering but it's
+-- cleaner to have an identification pass here. Also, I need to keep tracing in mind so
+-- being too clever here is dangerous.
+
+-- The subtype test is not needed as there will be no (new) properties set, given that we
+-- reset the properties.
if not nodes.properties then return end
@@ -80,8 +89,7 @@ function injections.resetcounts()
keepregisteredcounts = false
end
--- We need to make sure that a possible metatable will not kick in
--- unexpectedly.
+-- We need to make sure that a possible metatable will not kick in unexpectedly.
function injections.reset(n)
local p = rawget(properties,n)
@@ -146,7 +154,8 @@ end
function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext) -- hm: nuts or nodes
local dx = factor*(exit[1]-entry[1])
local dy = -factor*(exit[2]-entry[2])
- local ws, wn = tfmstart.width, tfmnext.width
+ local ws = tfmstart.width
+ local wn = tfmnext.width
nofregisteredcursives = nofregisteredcursives + 1
if rlmode < 0 then
dx = -(dx + wn)
@@ -205,9 +214,12 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
if rlmode and rlmode < 0 then
leftkern, rightkern = rightkern, leftkern
end
+ if not injection then
+ injection = "injections"
+ end
local p = rawget(properties,current)
if p then
- local i = rawget(p,"injections")
+ local i = rawget(p,injection)
if i then
if leftkern ~= 0 then
i.leftkern = (i.leftkern or 0) + leftkern
@@ -219,19 +231,19 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
i.yoffset = (i.yoffset or 0) + yoffset
end
elseif leftkern ~= 0 or rightkern ~= 0 then
- p.injections = {
+ p[injection] = {
leftkern = leftkern,
rightkern = rightkern,
yoffset = yoffset,
}
else
- p.injections = {
+ p[injection] = {
yoffset = yoffset,
}
end
elseif leftkern ~= 0 or rightkern ~= 0 then
properties[current] = {
- injections = {
+ [injection] = {
leftkern = leftkern,
rightkern = rightkern,
yoffset = yoffset,
@@ -239,7 +251,7 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
}
else
properties[current] = {
- injections = {
+ [injection] = {
yoffset = yoffset,
},
}
@@ -250,10 +262,9 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
return x, y, w, h -- no bound
end
--- this needs checking for rl < 0 but it is unlikely that a r2l script
--- uses kernclasses between glyphs so we're probably safe (KE has a
--- problematic font where marks interfere with rl < 0 in the previous
--- case)
+-- This needs checking for rl < 0 but it is unlikely that a r2l script uses kernclasses between
+-- glyphs so we're probably safe (KE has a problematic font where marks interfere with rl < 0 in
+-- the previous case)
function injections.setkern(current,factor,rlmode,x,injection)
local dx = factor * x
@@ -285,7 +296,7 @@ function injections.setkern(current,factor,rlmode,x,injection)
end
end
-function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=baseanchor, ma=markanchor
+function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk) -- ba=baseanchor, ma=markanchor
local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2])
nofregisteredmarks = nofregisteredmarks + 1
-- markanchors[nofregisteredmarks] = base
@@ -293,14 +304,20 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
dx = tfmbase.width - dx -- see later commented ox
end
local p = rawget(properties,start)
+ -- hm, dejavu serif does a sloppy mark2mark before mark2base
if p then
local i = rawget(p,"injections")
if i then
- i.markx = dx
- i.marky = dy
- i.markdir = rlmode or 0
- i.markbase = nofregisteredmarks
- i.markbasenode = base
+ if i.markmark then
+ -- out of order mkmk: yes or no or option
+ else
+ i.markx = dx
+ i.marky = dy
+ i.markdir = rlmode or 0
+ i.markbase = nofregisteredmarks
+ i.markbasenode = base
+ i.markmark = mkmk
+ end
else
p.injections = {
markx = dx,
@@ -308,6 +325,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
markdir = rlmode or 0,
markbase = nofregisteredmarks,
markbasenode = base,
+ markmark = mkmk,
}
end
else
@@ -318,6 +336,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
markdir = rlmode or 0,
markbase = nofregisteredmarks,
markbasenode = base,
+ markmark = mkmk,
},
}
end
@@ -430,30 +449,32 @@ local function show_result(head)
end
end
--- we could also check for marks here but maybe not all are registered (needs checking)
-
-local function collect_glyphs_1(head)
- local glyphs, nofglyphs = { }, 0
- local marks, nofmarks = { }, 0
+local function collect_glyphs(head,offsets)
+ local glyphs, glyphi, nofglyphs = { }, { }, 0
+ local marks, marki, nofmarks = { }, { }, 0
local nf, tm = nil, nil
- for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts
- if getsubtype(n) < 256 then
- local f = getfont(n)
- if f ~= nf then
- nf = f
- tm = fontdata[nf].resources.marks -- other hash in ctx
- end
- if tm and tm[getchar(n)] then
- nofmarks = nofmarks + 1
- marks[nofmarks] = n
- else
- nofglyphs = nofglyphs + 1
- glyphs[nofglyphs] = n
- end
+ local n = head
+
+ local function identify(n,what)
+ local f = getfont(n)
+ if f ~= nf then
+ nf = f
+ tm = fontdata[nf].resources.marks -- other hash in ctx
+ end
+ if tm and tm[getchar(n)] then
+ nofmarks = nofmarks + 1
+ marks[nofmarks] = n
+ marki[nofmarks] = "injections"
+ else
+ nofglyphs = nofglyphs + 1
+ glyphs[nofglyphs] = n
+ glyphi[nofglyphs] = what
+ end
+ if offsets then
-- yoffsets can influence curs steps
local p = rawget(properties,n)
if p then
- local i = rawget(p,"injections")
+ local i = rawget(p,what)
if i then
local yoffset = i.yoffset
if yoffset and yoffset ~= 0 then
@@ -463,38 +484,50 @@ local function collect_glyphs_1(head)
end
end
end
- return glyphs, nofglyphs, marks, nofmarks
-end
-local function collect_glyphs_2(head)
- local glyphs, nofglyphs = { }, 0
- local marks, nofmarks = { }, 0
- local nf, tm = nil, nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n) < 256 then
- local f = getfont(n)
- if f ~= nf then
- nf = f
- tm = fontdata[nf].resources.marks -- other hash in ctx
- end
- if tm and tm[getchar(n)] then
- nofmarks = nofmarks + 1
- marks[nofmarks] = n
- else
- nofglyphs = nofglyphs + 1
- glyphs[nofglyphs] = n
- end
+ while n do -- only needed for relevant fonts
+ local id = getid(n)
+ if id == glyph_code then
+ identify(n,"injections")
+ elseif id == disc_code then
+ local d = getfield(n,"pre")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"preinjections")
+ end
+ end
+ end
+ local d = getfield(n,"post")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"postinjections")
+ end
+ end
+ end
+ local d = getfield(n,"replace")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"replaceinjections")
+ end
+ end
+ end
end
+ n = getnext(n)
end
- return glyphs, nofglyphs, marks, nofmarks
+
+ return glyphs, glyphi, nofglyphs, marks, marki, nofmarks
end
-local function inject_marks(marks,nofmarks)
+local function inject_marks(marks,marki,nofmarks)
for i=1,nofmarks do
- local n = marks[i]
+ local n = marks[i]
local pn = rawget(properties,n)
if pn then
- pn = rawget(pn,"injections")
+ local ni = marki[i]
+ local pn = rawget(pn,ni)
if pn then
local p = pn.markbasenode
if p then
@@ -503,7 +536,7 @@ local function inject_marks(marks,nofmarks)
local rightkern = nil
local pp = rawget(properties,p)
if pp then
- pp = rawget(pp,"injections")
+ pp = rawget(pp,ni)
if pp then
rightkern = pp.rightkern
end
@@ -518,11 +551,10 @@ local function inject_marks(marks,nofmarks)
-- ox = px - getfield(p,"width") + pn.markx - pp.leftkern
local leftkern = pp.leftkern
if leftkern then
- ox = px - pn.markx
- else
ox = px - pn.markx - leftkern
+ else
+ ox = px - pn.markx
end
--- report_injections("l2r case 1: %p",ox)
end
else
-- we need to deal with fonts that have marks with width
@@ -548,12 +580,13 @@ local function inject_marks(marks,nofmarks)
setfield(n,"xoffset",ox)
--
local py = getfield(p,"yoffset")
- local oy = 0
- if marks[p] then
- oy = py + pn.marky
- else
- oy = getfield(n,"yoffset") + py + pn.marky
- end
+-- local oy = 0
+-- if marks[p] then
+-- oy = py + pn.marky
+-- else
+-- oy = getfield(n,"yoffset") + py + pn.marky
+-- end
+ local oy = getfield(n,"yoffset") + py + pn.marky
setfield(n,"yoffset",oy)
else
-- normally this can't happen (only when in trace mode which is a special case anyway)
@@ -564,14 +597,14 @@ local function inject_marks(marks,nofmarks)
end
end
-local function inject_cursives(glyphs,nofglyphs)
+local function inject_cursives(glyphs,glyphi,nofglyphs)
local cursiveanchor, lastanchor = nil, nil
local minc, maxc, last = 0, 0, nil
for i=1,nofglyphs do
- local n = glyphs[i]
+ local n = glyphs[i]
local pn = rawget(properties,n)
if pn then
- pn = rawget(pn,"injections")
+ pn = rawget(pn,glyphi[i])
end
if pn then
local cursivex = pn.cursivex
@@ -630,7 +663,7 @@ local function inject_cursives(glyphs,nofglyphs)
-- if maxc > 0 and not cursiveanchor then
-- local ny = getfield(n,"yoffset")
-- for i=maxc,minc,-1 do
- -- local ti = glyphs[i]
+ -- local ti = glyphs[i][1]
-- ny = ny + properties[ti].cursivedy
-- setfield(ti,"yoffset",ny) -- why not add ?
-- end
@@ -647,23 +680,67 @@ local function inject_cursives(glyphs,nofglyphs)
end
end
-local function inject_kerns(head,list,length)
- -- todo: pre/post/replace
+-- G +D-pre G
+-- D-post+
+-- +D-replace+
+--
+-- G +D-pre +D-pre
+-- D-post +D-post
+-- +D-replace +D-replace
+
+local function inject_kerns(head,glist,ilist,length) -- not complete ! compare with inject_kerns_only (but unlikely disc here)
for i=1,length do
- local n = list[i]
+ local n = glist[i]
local pn = rawget(properties,n)
if pn then
- local i = rawget(pn,"injections")
- if i then
- local leftkern = i.leftkern
- if leftkern and leftkern ~= 0 then
- insert_node_before(head,n,newkern(leftkern)) -- type 0/2
- end
- local rightkern = i.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern)) -- type 0/2
- end
- end
+ local dp = nil
+ local dr = nil
+ local ni = ilist[i]
+ local p = nil
+ if ni == "injections" then
+ p = getprev(n)
+ if p then
+ local id = getid(p)
+ if id == disc_code then
+ dp = getfield(p,"post")
+ dr = getfield(p,"replace")
+ end
+ end
+ end
+ if dp then
+ local i = rawget(pn,"postinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ local t = find_tail(dp)
+ insert_node_after(dp,t,newkern(leftkern))
+setfield(p,"post",dp) -- currently we need to force a tail refresh
+ end
+ end
+ end
+ if dr then
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ local t = find_tail(dr)
+ insert_node_after(dr,t,newkern(leftkern))
+setfield(p,"replace",dr) -- currently we need to force a tail refresh
+ end
+ end
+ else
+ local i = rawget(pn,ni)
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ insert_node_before(head,n,newkern(leftkern)) -- type 0/2
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern)) -- type 0/2
+ end
+ end
+ end
end
end
end
@@ -673,23 +750,18 @@ local function inject_everything(head,where)
if trace_injections then
trace(head,"everything")
end
- local glyphs, nofglyphs, marks, nofmarks
- if nofregisteredpairs > 0 then
- glyphs, nofglyphs, marks, nofmarks = collect_glyphs_1(head)
- else
- glyphs, nofglyphs, marks, nofmarks = collect_glyphs_2(head)
- end
+ local glyphs, glyphi, nofglyphs, marks, marki, nofmarks = collect_glyphs(head,nofregisteredpairs > 0)
if nofglyphs > 0 then
if nofregisteredcursives > 0 then
- inject_cursives(glyphs,nofglyphs)
+ inject_cursives(glyphs,glyphi,nofglyphs)
end
if nofregisteredmarks > 0 then -- and nofmarks > 0
- inject_marks(marks,nofmarks)
+ inject_marks(marks,marki,nofmarks)
end
- inject_kerns(head,glyphs,nofglyphs)
+ inject_kerns(head,glyphs,glyphi,nofglyphs)
end
if nofmarks > 0 then
- inject_kerns(head,marks,nofmarks)
+ inject_kerns(head,marks,marki,nofmarks)
end
if keepregisteredcounts then
keepregisteredcounts = false
@@ -702,6 +774,14 @@ local function inject_everything(head,where)
return tonode(head), true
end
+-- G +D-pre G
+-- D-post+
+-- +D-replace+
+--
+-- G +D-pre +D-pre
+-- D-post +D-post
+-- +D-replace +D-replace
+
local function inject_kerns_only(head,where)
head = tonut(head)
if trace_injections then
@@ -724,6 +804,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"post",d) -- currently we need to force a tail refresh
end
end
end
@@ -735,6 +816,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"replace",d) -- currently we need to force a tail refresh
end
end
else
@@ -784,6 +866,7 @@ local function inject_kerns_only(head,where)
setfield(n,"pre",h)
end
end
+ -- weird
local d = getfield(n,"post")
if d then
local h = d
@@ -852,7 +935,7 @@ local function inject_pairs_only(head,where)
end
--
local n = head
- local p = nil
+ local p = nil -- disc node when non-nil
while n do
local id = getid(n)
if id == glyph_code then
@@ -868,6 +951,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"post",d) -- currently we need to force a tail refresh
end
-- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
@@ -884,6 +968,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"replace",d) -- currently we need to force a tail refresh
end
-- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
@@ -1042,7 +1127,7 @@ local function inject_pairs_only(head,where)
return tonode(head), true
end
-function injections.handler(head,where) -- optimize for n=1 ?
+function injections.handler(head,where)
if nofregisteredmarks > 0 or nofregisteredcursives > 0 then
return inject_everything(head,where)
elseif nofregisteredpairs > 0 then
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 97222c733..da21fa6d8 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
-- merged file : luatex-fonts-merged.lua
-- parent file : luatex-fonts.lua
--- merge date : 08/30/15 23:03:00
+-- merge date : 09/01/15 11:10:11
do -- begin closure to overcome local limits and interference
@@ -10205,7 +10205,8 @@ end
function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext)
local dx=factor*(exit[1]-entry[1])
local dy=-factor*(exit[2]-entry[2])
- local ws,wn=tfmstart.width,tfmnext.width
+ local ws=tfmstart.width
+ local wn=tfmnext.width
nofregisteredcursives=nofregisteredcursives+1
if rlmode<0 then
dx=-(dx+wn)
@@ -10262,9 +10263,12 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
if rlmode and rlmode<0 then
leftkern,rightkern=rightkern,leftkern
end
+ if not injection then
+ injection="injections"
+ end
local p=rawget(properties,current)
if p then
- local i=rawget(p,"injections")
+ local i=rawget(p,injection)
if i then
if leftkern~=0 then
i.leftkern=(i.leftkern or 0)+leftkern
@@ -10276,19 +10280,19 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
i.yoffset=(i.yoffset or 0)+yoffset
end
elseif leftkern~=0 or rightkern~=0 then
- p.injections={
+ p[injection]={
leftkern=leftkern,
rightkern=rightkern,
yoffset=yoffset,
}
else
- p.injections={
+ p[injection]={
yoffset=yoffset,
}
end
elseif leftkern~=0 or rightkern~=0 then
properties[current]={
- injections={
+ [injection]={
leftkern=leftkern,
rightkern=rightkern,
yoffset=yoffset,
@@ -10296,7 +10300,7 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
}
else
properties[current]={
- injections={
+ [injection]={
yoffset=yoffset,
},
}
@@ -10335,7 +10339,7 @@ function injections.setkern(current,factor,rlmode,x,injection)
return 0,0
end
end
-function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
+function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk)
local dx,dy=factor*(ba[1]-ma[1]),factor*(ba[2]-ma[2])
nofregisteredmarks=nofregisteredmarks+1
if rlmode>=0 then
@@ -10345,11 +10349,15 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
if p then
local i=rawget(p,"injections")
if i then
- i.markx=dx
- i.marky=dy
- i.markdir=rlmode or 0
- i.markbase=nofregisteredmarks
- i.markbasenode=base
+ if i.markmark then
+ else
+ i.markx=dx
+ i.marky=dy
+ i.markdir=rlmode or 0
+ i.markbase=nofregisteredmarks
+ i.markbasenode=base
+ i.markmark=mkmk
+ end
else
p.injections={
markx=dx,
@@ -10357,6 +10365,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
markdir=rlmode or 0,
markbase=nofregisteredmarks,
markbasenode=base,
+ markmark=mkmk,
}
end
else
@@ -10367,6 +10376,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
markdir=rlmode or 0,
markbase=nofregisteredmarks,
markbasenode=base,
+ markmark=mkmk,
},
}
end
@@ -10471,27 +10481,30 @@ local function show_result(head)
current=getnext(current)
end
end
-local function collect_glyphs_1(head)
- local glyphs,nofglyphs={},0
- local marks,nofmarks={},0
+local function collect_glyphs(head,offsets)
+ local glyphs,glyphi,nofglyphs={},{},0
+ local marks,marki,nofmarks={},{},0
local nf,tm=nil,nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n)<256 then
- local f=getfont(n)
- if f~=nf then
- nf=f
- tm=fontdata[nf].resources.marks
- end
- if tm and tm[getchar(n)] then
- nofmarks=nofmarks+1
- marks[nofmarks]=n
- else
- nofglyphs=nofglyphs+1
- glyphs[nofglyphs]=n
- end
+ local n=head
+ local function identify(n,what)
+ local f=getfont(n)
+ if f~=nf then
+ nf=f
+ tm=fontdata[nf].resources.marks
+ end
+ if tm and tm[getchar(n)] then
+ nofmarks=nofmarks+1
+ marks[nofmarks]=n
+ marki[nofmarks]="injections"
+ else
+ nofglyphs=nofglyphs+1
+ glyphs[nofglyphs]=n
+ glyphi[nofglyphs]=what
+ end
+ if offsets then
local p=rawget(properties,n)
if p then
- local i=rawget(p,"injections")
+ local i=rawget(p,what)
if i then
local yoffset=i.yoffset
if yoffset and yoffset~=0 then
@@ -10501,36 +10514,47 @@ local function collect_glyphs_1(head)
end
end
end
- return glyphs,nofglyphs,marks,nofmarks
-end
-local function collect_glyphs_2(head)
- local glyphs,nofglyphs={},0
- local marks,nofmarks={},0
- local nf,tm=nil,nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n)<256 then
- local f=getfont(n)
- if f~=nf then
- nf=f
- tm=fontdata[nf].resources.marks
- end
- if tm and tm[getchar(n)] then
- nofmarks=nofmarks+1
- marks[nofmarks]=n
- else
- nofglyphs=nofglyphs+1
- glyphs[nofglyphs]=n
- end
+ while n do
+ local id=getid(n)
+ if id==glyph_code then
+ identify(n,"injections")
+ elseif id==disc_code then
+ local d=getfield(n,"pre")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"preinjections")
+ end
+ end
+ end
+ local d=getfield(n,"post")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"postinjections")
+ end
+ end
+ end
+ local d=getfield(n,"replace")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"replaceinjections")
+ end
+ end
+ end
end
+ n=getnext(n)
end
- return glyphs,nofglyphs,marks,nofmarks
+ return glyphs,glyphi,nofglyphs,marks,marki,nofmarks
end
-local function inject_marks(marks,nofmarks)
+local function inject_marks(marks,marki,nofmarks)
for i=1,nofmarks do
local n=marks[i]
local pn=rawget(properties,n)
if pn then
- pn=rawget(pn,"injections")
+ local ni=marki[i]
+ local pn=rawget(pn,ni)
if pn then
local p=pn.markbasenode
if p then
@@ -10539,7 +10563,7 @@ local function inject_marks(marks,nofmarks)
local rightkern=nil
local pp=rawget(properties,p)
if pp then
- pp=rawget(pp,"injections")
+ pp=rawget(pp,ni)
if pp then
rightkern=pp.rightkern
end
@@ -10550,9 +10574,9 @@ local function inject_marks(marks,nofmarks)
else
local leftkern=pp.leftkern
if leftkern then
- ox=px-pn.markx
- else
ox=px-pn.markx-leftkern
+ else
+ ox=px-pn.markx
end
end
else
@@ -10565,12 +10589,7 @@ local function inject_marks(marks,nofmarks)
end
setfield(n,"xoffset",ox)
local py=getfield(p,"yoffset")
- local oy=0
- if marks[p] then
- oy=py+pn.marky
- else
- oy=getfield(n,"yoffset")+py+pn.marky
- end
+ local oy=getfield(n,"yoffset")+py+pn.marky
setfield(n,"yoffset",oy)
else
end
@@ -10578,14 +10597,14 @@ local function inject_marks(marks,nofmarks)
end
end
end
-local function inject_cursives(glyphs,nofglyphs)
+local function inject_cursives(glyphs,glyphi,nofglyphs)
local cursiveanchor,lastanchor=nil,nil
local minc,maxc,last=0,0,nil
for i=1,nofglyphs do
local n=glyphs[i]
local pn=rawget(properties,n)
if pn then
- pn=rawget(pn,"injections")
+ pn=rawget(pn,glyphi[i])
end
if pn then
local cursivex=pn.cursivex
@@ -10651,22 +10670,59 @@ local function inject_cursives(glyphs,nofglyphs)
end
end
end
-local function inject_kerns(head,list,length)
+local function inject_kerns(head,glist,ilist,length)
for i=1,length do
- local n=list[i]
+ local n=glist[i]
local pn=rawget(properties,n)
if pn then
- local i=rawget(pn,"injections")
- if i then
- local leftkern=i.leftkern
- if leftkern and leftkern~=0 then
- insert_node_before(head,n,newkern(leftkern))
- end
- local rightkern=i.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
- end
- end
+ local dp=nil
+ local dr=nil
+ local ni=ilist[i]
+ local p=nil
+ if ni=="injections" then
+ p=getprev(n)
+ if p then
+ local id=getid(p)
+ if id==disc_code then
+ dp=getfield(p,"post")
+ dr=getfield(p,"replace")
+ end
+ end
+ end
+ if dp then
+ local i=rawget(pn,"postinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ local t=find_tail(dp)
+ insert_node_after(dp,t,newkern(leftkern))
+setfield(p,"post",dp)
+ end
+ end
+ end
+ if dr then
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ local t=find_tail(dr)
+ insert_node_after(dr,t,newkern(leftkern))
+setfield(p,"replace",dr)
+ end
+ end
+ else
+ local i=rawget(pn,ni)
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ insert_node_before(head,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ end
+ end
+ end
end
end
end
@@ -10675,23 +10731,18 @@ local function inject_everything(head,where)
if trace_injections then
trace(head,"everything")
end
- local glyphs,nofglyphs,marks,nofmarks
- if nofregisteredpairs>0 then
- glyphs,nofglyphs,marks,nofmarks=collect_glyphs_1(head)
- else
- glyphs,nofglyphs,marks,nofmarks=collect_glyphs_2(head)
- end
+ local glyphs,glyphi,nofglyphs,marks,marki,nofmarks=collect_glyphs(head,nofregisteredpairs>0)
if nofglyphs>0 then
if nofregisteredcursives>0 then
- inject_cursives(glyphs,nofglyphs)
+ inject_cursives(glyphs,glyphi,nofglyphs)
end
if nofregisteredmarks>0 then
- inject_marks(marks,nofmarks)
+ inject_marks(marks,marki,nofmarks)
end
- inject_kerns(head,glyphs,nofglyphs)
+ inject_kerns(head,glyphs,glyphi,nofglyphs)
end
if nofmarks>0 then
- inject_kerns(head,marks,nofmarks)
+ inject_kerns(head,marks,marki,nofmarks)
end
if keepregisteredcounts then
keepregisteredcounts=false
@@ -10725,6 +10776,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"post",d)
end
end
end
@@ -10736,6 +10788,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"replace",d)
end
end
else
@@ -10850,7 +10903,7 @@ local function inject_pairs_only(head,where)
trace(head,"pairs")
end
local n=head
- local p=nil
+ local p=nil
while n do
local id=getid(n)
if id==glyph_code then
@@ -10866,6 +10919,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"post",d)
end
end
end
@@ -10877,6 +10931,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+setfield(p,"replace",d)
end
end
else
@@ -11022,7 +11077,7 @@ local function inject_pairs_only(head,where)
end
return tonode(head),true
end
-function injections.handler(head,where)
+function injections.handler(head,where)
if nofregisteredmarks>0 or nofregisteredcursives>0 then
return inject_everything(head,where)
elseif nofregisteredpairs>0 then
@@ -11422,14 +11477,12 @@ if not modules then modules={} end modules ['font-otn']={
copyright="PRAGMA ADE / ConTeXt Development Team",
license="see context related readme files",
}
-local concat,insert,remove=table.concat,table.insert,table.remove
-local gmatch,gsub,find,match,lower,strip=string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
-local type,next,tonumber,tostring=type,next,tonumber,tostring
-local lpegmatch=lpeg.match
+local type,next,tonumber=type,next,tonumber
local random=math.random
local formatters=string.formatters
local logs,trackers,nodes,attributes=logs,trackers,nodes,attributes
local registertracker=trackers.register
+local registerdirective=directives.register
local fonts=fonts
local otf=fonts.handlers.otf
local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end)
@@ -11448,6 +11501,14 @@ local trace_applied=false registertracker("otf.applied",function(v) trace_applie
local trace_steps=false registertracker("otf.steps",function(v) trace_steps=v end)
local trace_skips=false registertracker("otf.skips",function(v) trace_skips=v end)
local trace_directions=false registertracker("otf.directions",function(v) trace_directions=v end)
+local trace_kernruns=false registertracker("otf.kernruns",function(v) trace_kernruns=v end)
+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 quit_on_no_replacement=true
+local check_discretionaries=true
+local zwnjruns=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")
@@ -11610,6 +11671,48 @@ local function copy_glyph(g)
return n
end
end
+local function collapse_disc(start,next)
+ local replace1=getfield(start,"replace")
+ local replace2=getfield(next,"replace")
+ if replace1 and replace2 then
+ local pre2=getfield(next,"pre")
+ local post2=getfield(next,"post")
+ setfield(replace1,"prev",nil)
+ if pre2 then
+ local pre1=getfield(start,"pre")
+ if pre1 then
+ flush_node_list(pre1)
+ end
+ local pre1=copy_node_list(replace1)
+ local tail1=find_node_tail(pre1)
+ setfield(tail1,"next",pre2)
+ setfield(pre2,"prev",tail1)
+ setfield(start,"pre",pre1)
+ setfield(next,"pre",nil)
+ else
+ setfield(start,"pre",nil)
+ end
+ if post2 then
+ local post1=getfield(start,"post")
+ if post1 then
+ flush_node_list(post1)
+ end
+ setfield(start,"post",post2)
+ else
+ setfield(start,"post",nil)
+ end
+ local tail1=find_node_tail(replace1)
+ setfield(tail1,"next",replace2)
+ setfield(replace2,"prev",tail1)
+ setfield(start,"replace",replace1)
+ setfield(next,"replace",nil)
+ local nextnext=getnext(next)
+ setfield(nextnext,"prev",start)
+ setfield(start,"next",nextnext)
+ free_node(next)
+ else
+ end
+end
local function markstoligature(kind,lookupname,head,start,stop,char)
if start==stop and getchar(start)==char then
return head,start
@@ -11654,14 +11757,66 @@ local function getcomponentindex(start)
return 0
end
end
+local a_noligature=attributes.private("noligature")
+local prehyphenchar=languages and languages.prehyphenchar
+local posthyphenchar=languages and languages.posthyphenchar
+if prehyphenchar then
+elseif context then
+ report_warning("no language support") os.exit()
+else
+ local newlang=lang.new
+ local getpre=lang.prehyphenchar
+ local getpost=lang.posthyphenchar
+ prehyphenchar=function(l) local l=newlang(l) return l and getpre (l) or -1 end
+ posthyphenchar=function(l) local l=newlang(l) return l and getpost (l) or -1 end
+end
+local function addhyphens(template,pre,post)
+ local l=getfield(template,"lang")
+ local p=prehyphenchar(l)
+ if p and p>0 then
+ local c=copy_node(template)
+ setfield(c,"char",p)
+ if pre then
+ local t=find_node_tail(pre)
+ setfield(t,"next",c)
+ setfield(c,"prev",t)
+ else
+ pre=c
+ end
+ end
+ local p=posthyphenchar(l)
+ if p and p>0 then
+ local c=copy_node(template)
+ setfield(c,"char",p)
+ if post then
+ local prev=getprev(post)
+ setfield(c,"next",post)
+ setfield(post,"prev",c)
+ if prev then
+ setfield(prev,"next",c)
+ setfield(c,"prev",prev)
+ end
+ else
+ post=c
+ end
+ end
+ return pre,post
+end
local function toligature(kind,lookupname,head,start,stop,char,markflag,discfound)
+ if getattr(start,a_noligature)==1 then
+ return head,start
+ end
if start==stop and getchar(start)==char then
resetinjection(start)
setfield(start,"char",char)
return head,start
end
+ local components=getfield(start,"components")
+ if components then
+ end
local prev=getprev(start)
local next=getnext(stop)
+ local comp=start
setfield(start,"prev",nil)
setfield(stop,"next",nil)
local base=copy_glyph(start)
@@ -11671,7 +11826,7 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
resetinjection(base)
setfield(base,"char",char)
setfield(base,"subtype",ligature_code)
- setfield(base,"components",start)
+ setfield(base,"components",comp)
if prev then
setfield(prev,"next",base)
end
@@ -11697,7 +11852,9 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
if trace_marks then
logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),getligaindex(start))
end
- head,current=insert_node_after(head,current,copy_node(start))
+ local n=copy_node(start)
+ copyinjection(n,start)
+ head,current=insert_node_after(head,current,n)
elseif trace_marks then
logwarning("%s: delete mark %s",pref(kind,lookupname),gref(char))
end
@@ -11716,6 +11873,66 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
end
start=getnext(start)
end
+ else
+ local discprev=getfield(discfound,"prev")
+ local discnext=getfield(discfound,"next")
+ if discprev and discnext then
+ local subtype=getsubtype(discfound)
+ if subtype==discretionary_code then
+ local pre=getfield(discfound,"pre")
+ local post=getfield(discfound,"post")
+ local replace=getfield(discfound,"replace")
+ if not replace then
+ local prev=getfield(base,"prev")
+ local copied=copy_node_list(comp)
+ setfield(discnext,"prev",nil)
+ setfield(discprev,"next",nil)
+ if pre then
+ setfield(discprev,"next",pre)
+ setfield(pre,"prev",discprev)
+ end
+ pre=comp
+ if post then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",discnext)
+ setfield(discnext,"prev",tail)
+ setfield(post,"prev",nil)
+ else
+ post=discnext
+ end
+ setfield(prev,"next",discfound)
+ setfield(next,"prev",discfound)
+ setfield(discfound,"next",next)
+ setfield(discfound,"prev",prev)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base=prev
+ end
+ elseif subtype==regular_code then
+ local copied=copy_node_list(comp)
+ setfield(discnext,"prev",nil)
+ setfield(discprev,"next",nil)
+ local pre,post=addhyphens(comp,comp,discnext,subtype)
+ setfield(prev,"next",discfound)
+ setfield(next,"prev",discfound)
+ setfield(discfound,"next",next)
+ setfield(discfound,"prev",prev)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base=next
+ else
+ end
+ end
end
return head,base
end
@@ -11809,7 +12026,7 @@ function handlers.gsub_multiple(head,start,kind,lookupname,multiple,sequence)
return multiple_glyphs(head,start,multiple,sequence.flags[1])
end
function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
- local s,stop,discfound=getnext(start),nil,false
+ local s,stop=getnext(start),nil
local startchar=getchar(start)
if marks[startchar] then
while s do
@@ -11837,23 +12054,29 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
else
head,start=markstoligature(kind,lookupname,head,start,stop,lig)
end
- return head,start,true
+ return head,start,true,false
else
end
end
else
local skipmark=sequence.flags[1]
+ local discfound=false
+ local lastdisc=nil
while s do
local id=getid(s)
- if id==glyph_code and getsubtype(s)<256 then
- if getfont(s)==currentfont then
+ if id==glyph_code and getsubtype(s)<256 then
+ if getfont(s)==currentfont then
local char=getchar(s)
if skipmark and marks[char] then
s=getnext(s)
- else
- local lg=ligature[char]
+ else
+ local lg=ligature[char]
if lg then
- stop=s
+ if not discfound and lastdisc then
+ discfound=lastdisc
+ lastdisc=nil
+ end
+ stop=s
ligature=lg
s=getnext(s)
else
@@ -11864,13 +12087,13 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
break
end
elseif id==disc_code then
- discfound=true
+ lastdisc=s
s=getnext(s)
else
break
end
end
- local lig=ligature.ligature
+ local lig=ligature.ligature
if lig then
if stop then
if trace_ligatures then
@@ -11887,11 +12110,11 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(kind,lookupname),gref(startchar),gref(lig))
end
end
- return head,start,true
+ return head,start,true,discfound
else
end
end
- return head,start,false
+ return head,start,false,discfound
end
function handlers.gpos_mark2base(head,start,kind,lookupname,markanchors,sequence)
local markchar=getchar(start)
@@ -12045,7 +12268,7 @@ function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence
if al[anchor] then
local ma=markanchors[anchor]
if ma then
- local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -12123,15 +12346,15 @@ function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence)
return head,start,false
end
end
-function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
+function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence,injection)
local startchar=getchar(start)
- local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,injection)
if trace_kerns then
logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
end
return head,start,false
end
-function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
+function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence,lookuphash,i,injection)
local snext=getnext(start)
if not snext then
return head,start,false
@@ -12149,17 +12372,17 @@ function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
if not krn then
elseif type(krn)=="table" then
if lookuptype=="pair" then
- local a,b=krn[2],krn[3]
+ local a,b=krn[2],krn[3]
if a and #a>0 then
local startchar=getchar(start)
- local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,injection)
if trace_kerns then
logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
if b and #b>0 then
local startchar=getchar(start)
- local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,injection)
if trace_kerns then
logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
@@ -12169,7 +12392,7 @@ function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
end
done=true
elseif krn~=0 then
- local k=setkern(snext,factor,rlmode,krn)
+ local k=setkern(snext,factor,rlmode,krn,injection)
if trace_kerns then
logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
end
@@ -12223,7 +12446,7 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
local current=start
local subtables=currentlookup.subtables
if #subtables>1 then
- logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+ logwarning("todo: check if we need to loop over the replacements: % t",subtables)
end
while current do
if getid(current)==glyph_code then
@@ -12245,7 +12468,80 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement))
end
resetinjection(current)
- setfield(current,"char",replacement)
+ if check_discretionaries then
+ local next=getnext(current)
+ local prev=getprev(current)
+ local done=false
+ if next then
+ if getid(next)==disc_code then
+ local subtype=getsubtype(next)
+ if subtype==discretionary_code then
+ setfield(next,"prev",prev)
+ setfield(prev,"next",next)
+ setfield(current,"prev",nil)
+ setfield(current,"next",nil)
+ local replace=getfield(next,"replace")
+ local pre=getfield(next,"pre")
+ local new=copy_node(current)
+ setfield(new,"char",replacement)
+ if replace then
+ setfield(new,"next",replace)
+ setfield(replace,"prev",new)
+ end
+ if pre then
+ setfield(current,"next",pre)
+ setfield(pre,"prev",current)
+ end
+ setfield(next,"replace",new)
+ setfield(next,"pre",current)
+ end
+ start=next
+ done=true
+ local next=getnext(start)
+ if next and getid(next)==disc_code then
+ collapse_disc(start,next)
+ end
+ end
+ end
+ if not done and prev then
+ if getid(prev)==disc_code then
+ local subtype=getsubtype(prev)
+ if subtype==discretionary_code then
+ setfield(next,"prev",prev)
+ setfield(prev,"next",next)
+ setfield(current,"prev",nil)
+ setfield(current,"next",nil)
+ local replace=getfield(prev,"replace")
+ local post=getfield(prev,"post")
+ local new=copy_node(current)
+ setfield(new,"char",replacement)
+ if replace then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",new)
+ setfield(new,"prev",tail)
+ else
+ replace=new
+ end
+ if post then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",current)
+ setfield(current,"prev",tail)
+ else
+ post=current
+ end
+ setfield(prev,"replace",replace)
+ setfield(prev,"post",post)
+ start=prev
+ done=true
+ end
+ end
+ end
+ if not done then
+ setfield(current,"char",replacement)
+ end
+ else
+ setfield(current,"char",replacement)
+ end
end
end
return head,start,true
@@ -12349,11 +12645,17 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
while s do
local id=getid(s)
if id==disc_code then
- s=getnext(s)
- discfound=true
+ if not discfound then
+ discfound=s
+ end
+ if s==stop then
+ break
+ else
+ s=getnext(s)
+ end
else
local schar=getchar(s)
- if skipmark and marks[schar] then
+ if skipmark and marks[schar] then
s=getnext(s)
else
local lg=ligatures[schar]
@@ -12383,7 +12685,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
head,start=toligature(kind,lookupname,head,start,stop,l2,currentlookup.flags[1],discfound)
- return head,start,true,nofreplacements
+ return head,start,true,nofreplacements,discfound
elseif trace_bugs then
if start==stop then
logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
@@ -12393,7 +12695,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
end
- return head,start,false,0
+ return head,start,false,0,false
end
chainmores.gsub_ligature=chainprocs.gsub_ligature
function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
@@ -12559,7 +12861,7 @@ function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext
if al[anchor] then
local ma=markanchors[anchor]
if ma then
- local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -12654,7 +12956,7 @@ function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lo
if kerns then
kerns=kerns[startchar]
if kerns then
- local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns)
if trace_kerns then
logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
end
@@ -12689,30 +12991,20 @@ function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,look
local a,b=krn[2],krn[3]
if a and #a>0 then
local startchar=getchar(start)
- local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a)
if trace_kerns then
logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
if b and #b>0 then
local startchar=getchar(start)
- local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b)
if trace_kerns then
logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
else
report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
- local a,b=krn[2],krn[6]
- if a and a~=0 then
- local k=setkern(snext,factor,rlmode,a)
- if trace_kerns then
- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- end
- if b and b~=0 then
- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
- end
end
done=true
elseif krn~=0 then
@@ -12739,10 +13031,6 @@ local function show_skip(kind,chainname,char,ck,class)
logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
end
end
-local quit_on_no_replacement=true
-directives.register("otf.chain.quitonnoreplacement",function(value)
- quit_on_no_replacement=value
-end)
local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
local flags=sequence.flags
local done=false
@@ -12802,7 +13090,34 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id==disc_code then
- last=getnext(last)
+ if check_discretionaries then
+ local replace=getfield(last,"replace")
+ if replace then
+ while replace do
+ if seq[n][getchar(replace)] then
+ n=n+1
+ replace=getnext(replace)
+ if not replace then
+ break
+ elseif n>l then
+ break
+ end
+ else
+ match=false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries=="trace" then
+ report_chain("check disc action in current")
+ end
+ else
+ last=getnext(last)
+ end
+ else
+ last=getnext(last)
+ end
else
match=false
break
@@ -12847,6 +13162,34 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id==disc_code then
+ if check_discretionaries then
+ local replace=getfield(prev,"replace")
+ if replace then
+ replace=find_node_tail(replace)
+ local finish=getprev(replace)
+ while replace do
+ if seq[n][getchar(replace)] then
+ n=n-1
+ replace=getprev(replace)
+ if not replace or replace==finish then
+ break
+ elseif n<1 then
+ break
+ end
+ else
+ match=false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries=="trace" then
+ report_chain("check disc action in before")
+ end
+ else
+ end
+ else
+ end
elseif seq[n][32] then
n=n -1
else
@@ -12855,7 +13198,7 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
prev=getprev(prev)
elseif seq[n][32] then
- n=n -1
+ n=n-1
else
match=false
break
@@ -12898,6 +13241,32 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id==disc_code then
+ if check_discretionaries then
+ local replace=getfield(current,"replace")
+ if replace then
+ while replace do
+ if seq[n][getchar(replace)] then
+ n=n+1
+ replace=getnext(replace)
+ if not replace then
+ break
+ elseif n>s then
+ break
+ end
+ else
+ match=false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries=="trace" then
+ report_chain("check disc action in after")
+ end
+ else
+ end
+ else
+ end
elseif seq[n][32] then
n=n+1
else
@@ -13082,7 +13451,7 @@ local function initialize(sequence,script,language,enabled)
local scripts=features[kind]
local languages=scripts[script] or scripts[wildcard]
if languages and (languages[language] or languages[wildcard]) then
- return { valid,autofeatures[kind] or false,sequence.chain or 0,kind,sequence }
+ return { valid,autofeatures[kind] or false,sequence,kind }
end
end
end
@@ -13122,6 +13491,162 @@ function otf.dataset(tfmdata,font)
end
return rl
end
+local function kernrun(disc,run)
+ if trace_kernruns then
+ report_run("kern")
+ end
+ local prev=getprev(disc)
+ local next=getnext(disc)
+ local pre=getfield(disc,"pre")
+ local post=getfield(disc,"post")
+ local replace=getfield(disc,"replace")
+ if pre or replace then
+ if not (prev and getid(prev)==glyph_code and getfont(prev)==currentfont and getsubtype(prev)<256) then
+ prev=false
+ end
+ end
+ if post or replace then
+ if not (next and getid(next)==glyph_code and getfont(next)==currentfont and getsubtype(next)<256) then
+ next=false
+ end
+ end
+ if not pre then
+ elseif prev then
+ local nest=getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ run(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ run(pre,"preinjections")
+ end
+ if not post then
+ elseif next then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(post,"postinjections",tail)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(post,"postinjections")
+ end
+ if not replace and prev and next then
+ elseif prev and next then
+ local tail=find_node_tail(replace)
+ local nest=getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(prev,"replaceinjections",tail)
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ elseif prev then
+ local nest=getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ run(prev,"replaceinjections")
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ elseif next then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(replace,"replaceinjections",tail)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(replace,"replaceinjections")
+ end
+end
+local function comprun(disc,run)
+ if trace_compruns then
+ report_run("comp: %s",languages.serializediscretionary(disc))
+ end
+ local pre=getfield(disc,"pre")
+ if pre then
+ local new,done=run(pre)
+ if done then
+ setfield(disc,"pre",new)
+ end
+ end
+ local post=getfield(disc,"post")
+ if post then
+ local new,done=run(post)
+ if done then
+ setfield(disc,"post",new)
+ end
+ end
+ local replace=getfield(disc,"replace")
+ if replace then
+ local new,done=run(replace)
+ if done then
+ setfield(disc,"replace",new)
+ end
+ end
+end
+local function testrun(disc,trun,crun)
+ local next=getnext(disc)
+ if next then
+ local replace=getfield(disc,"replace")
+ if replace then
+ local prev=getprev(disc)
+ if prev then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ if trun(replace,next) then
+ setfield(disc,"replace",nil)
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ setfield(next,"prev",tail)
+ setfield(tail,"next",next)
+ setfield(disc,"prev",nil)
+ setfield(disc,"next",nil)
+ flush_node_list(disc)
+ return replace
+ else
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ end
+ else
+ end
+ else
+ end
+ else
+ end
+ comprun(disc,crun)
+ return next
+end
+local function discrun(disc,drun,krun)
+ local next=getnext(disc)
+ local prev=getprev(disc)
+ if trace_discruns then
+ report_run("disc")
+ end
+ if next and prev then
+ setfield(prev,"next",next)
+ drun(prev)
+ setfield(prev,"next",disc)
+ end
+ local pre=getfield(disc,"pre")
+ if not pre then
+ elseif prev then
+ local nest=getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ krun(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ krun(pre,"preinjections")
+ end
+ return next
+end
local function featuresprocessor(head,font,attr)
local lookuphash=lookuphashes[font]
if not lookuphash then
@@ -13148,17 +13673,18 @@ local function featuresprocessor(head,font,attr)
local dirstack={}
for s=1,#datasets do
local dataset=datasets[s]
- featurevalue=dataset[1]
- local sequence=dataset[5]
+ featurevalue=dataset[1]
+ local attribute=dataset[2]
+ local sequence=dataset[3]
+ local kind=dataset[4]
local rlparmode=0
local topstack=0
local success=false
- local attribute=dataset[2]
- local chain=dataset[3]
local typ=sequence.type
+ local gpossing=typ=="gpos_single" or typ=="gpos_pair"
local subtables=sequence.subtables
- if chain<0 then
- local handler=handlers[typ]
+ local handler=handlers[typ]
+ if typ=="gsub_reversecontextchain" then
local start=find_node_tail(head)
while start do
local id=getid(start)
@@ -13171,13 +13697,14 @@ local function featuresprocessor(head,font,attr)
a=true
end
if a then
+ local char=getchar(start)
for i=1,#subtables do
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local lookupmatch=lookupcache[start]
if lookupmatch then
- head,start,success=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,success=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if success then
break
end
@@ -13198,7 +13725,6 @@ local function featuresprocessor(head,font,attr)
end
end
else
- local handler=handlers[typ]
local ns=#subtables
local start=head
rlmode=0
@@ -13208,12 +13734,14 @@ local function featuresprocessor(head,font,attr)
if not lookupcache then
report_missing_cache(typ,lookupname)
else
- local function subrun(start)
+ local function c_run(start)
local head=start
local done=false
while start do
local id=getid(start)
- if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ if id~=glyph_code then
+ start=getnext(start)
+ elseif getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13224,7 +13752,7 @@ local function featuresprocessor(head,font,attr)
local lookupmatch=lookupcache[getchar(start)]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
done=true
end
@@ -13234,43 +13762,98 @@ local function featuresprocessor(head,font,attr)
start=getnext(start)
end
else
- start=getnext(start)
+ return head,false
end
end
if done then
- success=true
- return head
+ success=true
end
+ return head,done
end
- local function kerndisc(disc)
- local prev=getprev(disc)
- local next=getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- local a=getattr(prev,0)
- if a then
- a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ local function t_run(start,stop)
+ while start~=stop do
+ local id=getid(start)
+ if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[getchar(start)]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ while s do
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ end
+ start=getnext(start)
else
- a=not attribute or getprop(prev,a_state)==attribute
+ break
end
- if a then
- local lookupmatch=lookupcache[getchar(prev)]
- if lookupmatch then
- local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
- if ok then
- done=true
- success=true
+ end
+ end
+ local function d_run(prev)
+ local a=getattr(prev,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ else
+ a=not attribute or getprop(prev,a_state)==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[getchar(prev)]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done=true
+ success=true
+ end
+ end
+ end
+ end
+ local function k_run(sub,injection,last)
+ local a=getattr(sub,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(sub,a_state)==attribute)
+ else
+ a=not attribute or getprop(sub,a_state)==attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do
+ if n==last then
+ break
+ end
+ local id=getid(n)
+ if id==glyph_code then
+ local lookupmatch=lookupcache[getchar(n)]
+ if lookupmatch then
+ local h,d,ok=handler(sub,n,kind,lookupname,lookupmatch,sequence,lookuphash,1,injection)
+ if ok then
+ done=true
+ success=true
+ end
end
+ else
end
end
- setfield(prev,"next",disc)
end
- return next
end
while start do
local id=getid(start)
if id==glyph_code then
- if getfont(start)==font and getsubtype(start)<256 then
+ if getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13278,13 +13861,18 @@ local function featuresprocessor(head,font,attr)
a=not attribute or getprop(start,a_state)==attribute
end
if a then
- local lookupmatch=lookupcache[getchar(start)]
+ local char=getchar(start)
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
success=true
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
if start then start=getnext(start) end
else
@@ -13294,26 +13882,24 @@ local function featuresprocessor(head,font,attr)
start=getnext(start)
end
elseif id==disc_code then
- if getsubtype(start)==discretionary_code then
- local pre=getfield(start,"pre")
- if pre then
- local new=subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post=getfield(start,"post")
- if post then
- local new=subrun(post)
- if new then setfield(start,"post",new) end
+ local discretionary=getsubtype(start)==discretionary_code
+ if gpossing then
+ if discretionary then
+ kernrun(start,k_run)
+ else
+ discrun(start,d_run,k_run)
end
- local replace=getfield(start,"replace")
- if replace then
- local new=subrun(replace)
- if new then setfield(start,"replace",new) end
+ start=getnext(start)
+ elseif discretionary then
+ if typ=="gsub_ligature" then
+ start=testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start=getnext(start)
end
-elseif typ=="gpos_single" or typ=="gpos_pair" then
- kerndisc(start)
+ else
+ start=getnext(start)
end
- start=getnext(start)
elseif id==whatsit_code then
local subtype=getsubtype(start)
if subtype==dir_code then
@@ -13358,12 +13944,14 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
end
end
else
- local function subrun(start)
+ local function c_run(start)
local head=start
local done=false
while start do
local id=getid(start)
- if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ if id~=glyph_code then
+ start=getnext(start)
+ elseif getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13371,14 +13959,15 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
a=not attribute or getprop(start,a_state)==attribute
end
if a then
+ local char=getchar(start)
for i=1,ns do
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
done=true
break
@@ -13395,46 +13984,120 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
start=getnext(start)
end
else
- start=getnext(start)
+ return head,false
end
end
if done then
success=true
- return head
end
+ return head,done
end
- local function kerndisc(disc)
- local prev=getprev(disc)
- local next=getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- local a=getattr(prev,0)
- if a then
- a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
- else
- a=not attribute or getprop(prev,a_state)==attribute
+ local function d_run(prev)
+ local a=getattr(prev,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ else
+ a=not attribute or getprop(prev,a_state)==attribute
+ end
+ if a then
+ local char=getchar(prev)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done=true
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
end
- if a then
- for i=1,ns do
- local lookupname=subtables[i]
- local lookupcache=lookuphash[lookupname]
- if lookupcache then
- local lookupmatch=lookupcache[getchar(prev)]
- if lookupmatch then
- local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
- if ok then
- done=true
- break
+ end
+ end
+ local function k_run(sub,injection,last)
+ local a=getattr(sub,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(sub,a_state)==attribute)
+ else
+ a=not attribute or getprop(sub,a_state)==attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do
+ if n==last then
+ break
+ end
+ local id=getid(n)
+ if id==glyph_code then
+ local char=getchar(n)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local h,d,ok=handler(head,n,kind,lookupname,lookupmatch,sequence,lookuphash,i,injection)
+ if ok then
+ done=true
+ break
+ end
end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ else
+ end
+ end
+ end
+ end
+ local function t_run(start,stop)
+ while start~=stop do
+ local id=getid(start)
+ if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ local char=getchar(start)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ while s do
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
end
- else
- report_missing_cache(typ,lookupname)
end
end
+ start=getnext(start)
+ else
+ break
end
- setfield(prev,"next",disc)
end
- return next
end
while start do
local id=getid(start)
@@ -13451,16 +14114,21 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local char=getchar(start)
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
success=true
break
elseif not start then
break
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
else
report_missing_cache(typ,lookupname)
@@ -13474,26 +14142,24 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
start=getnext(start)
end
elseif id==disc_code then
- if getsubtype(start)==discretionary_code then
- local pre=getfield(start,"pre")
- if pre then
- local new=subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post=getfield(start,"post")
- if post then
- local new=subrun(post)
- if new then setfield(start,"post",new) end
+ local discretionary=getsubtype(start)==discretionary_code
+ if gpossing then
+ if discretionary then
+ kernrun(start,k_run)
+ else
+ discrun(start,d_run,k_run)
end
- local replace=getfield(start,"replace")
- if replace then
- local new=subrun(replace)
- if new then setfield(start,"replace",new) end
+ start=getnext(start)
+ elseif discretionary then
+ if typ=="gsub_ligature" then
+ start=testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start=getnext(start)
end
-elseif typ=="gpos_single" or typ=="gpos_pair" then
- kerndisc(start)
+ else
+ start=getnext(start)
end
- start=getnext(start)
elseif id==whatsit_code then
local subtype=getsubtype(start)
if subtype==dir_code then
@@ -13556,43 +14222,46 @@ local function generic(lookupdata,lookupname,unicode,lookuphash)
lookuphash[lookupname]={ [unicode]=lookupdata }
end
end
+local function ligature(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ for i=1,#lookupdata do
+ local li=lookupdata[i]
+ local tu=target[li]
+ if not tu then
+ tu={}
+ target[li]=tu
+ end
+ target=tu
+ end
+ target.ligature=unicode
+end
+local function pair(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ local others=target[unicode]
+ local paired=lookupdata[1]
+ if others then
+ others[paired]=lookupdata
+ else
+ others={ [paired]=lookupdata }
+ target[unicode]=others
+ end
+end
local action={
substitution=generic,
multiple=generic,
alternate=generic,
position=generic,
- ligature=function(lookupdata,lookupname,unicode,lookuphash)
- local target=lookuphash[lookupname]
- if not target then
- target={}
- lookuphash[lookupname]=target
- end
- for i=1,#lookupdata do
- local li=lookupdata[i]
- local tu=target[li]
- if not tu then
- tu={}
- target[li]=tu
- end
- target=tu
- end
- target.ligature=unicode
- end,
- pair=function(lookupdata,lookupname,unicode,lookuphash)
- local target=lookuphash[lookupname]
- if not target then
- target={}
- lookuphash[lookupname]=target
- end
- local others=target[unicode]
- local paired=lookupdata[1]
- if others then
- others[paired]=lookupdata
- else
- others={ [paired]=lookupdata }
- target[unicode]=others
- end
- end,
+ ligature=ligature,
+ pair=pair,
+ kern=pair,
}
local function prepare_lookups(tfmdata)
local rawdata=tfmdata.shared.rawdata
@@ -13603,13 +14272,14 @@ local function prepare_lookups(tfmdata)
local lookuptypes=resources.lookuptypes
local characters=tfmdata.characters
local descriptions=tfmdata.descriptions
+ local duplicates=resources.duplicates
for unicode,character in next,characters do
local description=descriptions[unicode]
if description then
local lookups=description.slookups
if lookups then
for lookupname,lookupdata in next,lookups do
- action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
local lookups=description.mlookups
@@ -13618,7 +14288,7 @@ local function prepare_lookups(tfmdata)
local lookuptype=lookuptypes[lookupname]
for l=1,#lookuplist do
local lookupdata=lookuplist[l]
- action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptype](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
end
@@ -13640,7 +14310,7 @@ local function prepare_lookups(tfmdata)
for name,anchor in next,anchors do
local lookups=anchor_to_lookup[name]
if lookups then
- for lookup,_ in next,lookups do
+ for lookup in next,lookups do
local target=lookuphash[lookup]
if target then
target[unicode]=anchors
@@ -13722,7 +14392,7 @@ local function prepare_contextchains(tfmdata)
if sequence[1] then
nt=nt+1
t[nt]={ nofrules,lookuptype,sequence,start,stop,rule.lookups,replacements }
- for unic,_ in next,sequence[start] do
+ for unic in next,sequence[start] do
local cu=contexts[unic]
if not cu then
contexts[unic]=t
diff --git a/tex/generic/context/luatex/luatex-fonts-otn.lua b/tex/generic/context/luatex/luatex-fonts-otn.lua
index 0bf231fff..be2c48a09 100644
--- a/tex/generic/context/luatex/luatex-fonts-otn.lua
+++ b/tex/generic/context/luatex/luatex-fonts-otn.lua
@@ -12,6 +12,13 @@ if not modules then modules = { } end modules ['font-otn'] = {
-- this is a context version which can contain experimental code, but when we
-- have serious patches we also need to change the other two font-otn files
+-- at some point i might decide to convert the whole list into a table and then
+-- run over that instead (but it has some drawbacks as we also need to deal with
+-- attributes and such so we need to keep a lot of track - which is why i rejected
+-- that method - although it has become a bit easier in the meantime so it might
+-- become an alternative (by that time i probably have gone completely lua) .. the
+-- usual chicken-egg issues ... maybe mkix as it's no real tex any more then
+
-- preprocessors = { "nodes" }
-- anchor class : mark, mkmk, curs, mklg (todo)
@@ -40,7 +47,18 @@ if not modules then modules = { } end modules ['font-otn'] = {
-- mark (to mark) code is still not what it should be (too messy but we need some more extreem husayni tests)
-- remove some optimizations (when I have a faster machine)
--
--- maybe redo the lot some way (more context specific)
+-- beware:
+--
+-- we do some disc jugling where we need to keep in mind that the
+-- pre, post and replace fields can have prev pointers to a nesting
+-- node ... i wonder if that is still needed
+--
+-- not possible:
+--
+-- \discretionary {alpha-} {betagammadelta}
+-- {\discretionary {alphabeta-} {gammadelta}
+-- {\discretionary {alphabetagamma-} {delta}
+-- {alphabetagammadelta}}}
--[[ldx--
<p>This module is a bit more split up that I'd like but since we also want to test
@@ -123,7 +141,6 @@ results in different tables.</p>
-- chainmore : multiple substitutions triggered by contextual lookup (e.g. fij -> f + ij)
--
-- remark: the 'not implemented yet' variants will be done when we have fonts that use them
--- remark: we need to check what to do with discretionaries
-- We used to have independent hashes for lookups but as the tags are unique
-- we now use only one hash. If needed we can have multiple again but in that
@@ -131,16 +148,14 @@ results in different tables.</p>
-- Todo: make plugin feature that operates on char/glyphnode arrays
-local concat, insert, remove = table.concat, table.insert, table.remove
-local gmatch, gsub, find, match, lower, strip = string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
-local type, next, tonumber, tostring = type, next, tonumber, tostring
-local lpegmatch = lpeg.match
+local type, next, tonumber = type, next, tonumber
local random = math.random
local formatters = string.formatters
local logs, trackers, nodes, attributes = logs, trackers, nodes, attributes
-local registertracker = trackers.register
+local registertracker = trackers.register
+local registerdirective = directives.register
local fonts = fonts
local otf = fonts.handlers.otf
@@ -162,6 +177,18 @@ local trace_steps = false registertracker("otf.steps", function(v
local trace_skips = false registertracker("otf.skips", function(v) trace_skips = v end)
local trace_directions = false registertracker("otf.directions", function(v) trace_directions = v end)
+local trace_kernruns = false registertracker("otf.kernruns", function(v) trace_kernruns = v end)
+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 quit_on_no_replacement = true -- maybe per font
+local check_discretionaries = true -- "trace"
+local zwnjruns = 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")
@@ -376,8 +403,52 @@ local function copy_glyph(g) -- next and prev are untouched !
end
end
---
-
+-- temp here (context)
+
+local function collapse_disc(start,next)
+ local replace1 = getfield(start,"replace")
+ local replace2 = getfield(next,"replace")
+ if replace1 and replace2 then
+ local pre2 = getfield(next,"pre")
+ local post2 = getfield(next,"post")
+ setfield(replace1,"prev",nil)
+ if pre2 then
+ local pre1 = getfield(start,"pre")
+ if pre1 then
+ flush_node_list(pre1)
+ end
+ local pre1 = copy_node_list(replace1)
+ local tail1 = find_node_tail(pre1)
+ setfield(tail1,"next",pre2)
+ setfield(pre2,"prev",tail1)
+ setfield(start,"pre",pre1)
+ setfield(next,"pre",nil)
+ else
+ setfield(start,"pre",nil)
+ end
+ if post2 then
+ local post1 = getfield(start,"post")
+ if post1 then
+ flush_node_list(post1)
+ end
+ setfield(start,"post",post2)
+ else
+ setfield(start,"post",nil)
+ end
+ local tail1 = find_node_tail(replace1)
+ setfield(tail1,"next",replace2)
+ setfield(replace2,"prev",tail1)
+ setfield(start,"replace",replace1)
+ setfield(next,"replace",nil)
+ --
+ local nextnext = getnext(next)
+ setfield(nextnext,"prev",start)
+ setfield(start,"next",nextnext)
+ free_node(next)
+ else
+ -- maybe remove it
+ end
+end
-- start is a mark and we need to keep that one
@@ -434,16 +505,90 @@ local function getcomponentindex(start)
end
end
--- eventually we will do positioning in an other way (needs addional w/h/d fields)
+local a_noligature = attributes.private("noligature")
+local prehyphenchar = languages and languages.prehyphenchar
+local posthyphenchar = languages and languages.posthyphenchar
+----- preexhyphenchar = languages and languages.preexhyphenchar
+----- postexhyphenchar = languages and languages.postexhyphenchar
+
+if prehyphenchar then
+
+ -- okay
+
+elseif context then
+
+ report_warning("no language support") os.exit()
+
+else
+
+ local newlang = lang.new
+ local getpre = lang.prehyphenchar
+ local getpost = lang.posthyphenchar
+ -- local getpreex = lang.preexhyphenchar
+ -- local getpostex = lang.postexhyphenchar
+
+ prehyphenchar = function(l) local l = newlang(l) return l and getpre (l) or -1 end
+ posthyphenchar = function(l) local l = newlang(l) return l and getpost (l) or -1 end
+ -- preexhyphenchar = function(l) local l = newlang(l) return l and getpreex (l) or -1 end
+ -- postexhyphenchar = function(l) local l = newlang(l) return l and getpostex(l) or -1 end
+
+end
+
+local function addhyphens(template,pre,post)
+ -- inserted by hyphenation algorithm
+ local l = getfield(template,"lang")
+ local p = prehyphenchar(l)
+ if p and p > 0 then
+ local c = copy_node(template)
+ setfield(c,"char",p)
+ if pre then
+ local t = find_node_tail(pre)
+ setfield(t,"next",c)
+ setfield(c,"prev",t)
+ else
+ pre = c
+ end
+ end
+ local p = posthyphenchar(l)
+ if p and p > 0 then
+ local c = copy_node(template)
+ setfield(c,"char",p)
+ if post then
+ -- post has a prev nesting node .. alternatively we could
+ local prev = getprev(post)
+ setfield(c,"next",post)
+ setfield(post,"prev",c)
+ if prev then
+ setfield(prev,"next",c)
+ setfield(c,"prev",prev)
+ end
+ else
+ post = c
+ end
+ end
+ return pre, post
+end
local function toligature(kind,lookupname,head,start,stop,char,markflag,discfound) -- brr head
+ if getattr(start,a_noligature) == 1 then
+ -- so we can do: e\noligature{ff}e e\noligature{f}fie (we only look at the first)
+ return head, start
+ end
if start == stop and getchar(start) == char then
resetinjection(start)
setfield(start,"char",char)
return head, start
end
+ -- needs testing (side effects):
+ local components = getfield(start,"components")
+ if components then
+-- we get a double free .. needs checking
+-- flush_node_list(components)
+ end
+ --
local prev = getprev(start)
local next = getnext(stop)
+ local comp = start
setfield(start,"prev",nil)
setfield(stop,"next",nil)
local base = copy_glyph(start)
@@ -453,7 +598,7 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
resetinjection(base)
setfield(base,"char",char)
setfield(base,"subtype",ligature_code)
- setfield(base,"components",start) -- start can have components
+ setfield(base,"components",comp) -- start can have components .. do we need to flush?
if prev then
setfield(prev,"next",base)
end
@@ -480,7 +625,9 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
if trace_marks then
logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),getligaindex(start))
end
- head, current = insert_node_after(head,current,copy_node(start)) -- unlikely that mark has components
+ local n = copy_node(start)
+ copyinjection(n,start)
+ head, current = insert_node_after(head,current,n) -- unlikely that mark has components
elseif trace_marks then
logwarning("%s: delete mark %s",pref(kind,lookupname),gref(char))
end
@@ -501,6 +648,70 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
end
start = getnext(start)
end
+ else
+ -- discfound ... forget about marks .. probably no scripts that hyphenate and have marks
+ local discprev = getfield(discfound,"prev")
+ local discnext = getfield(discfound,"next")
+ if discprev and discnext then
+ local subtype = getsubtype(discfound)
+ if subtype == discretionary_code then
+ local pre = getfield(discfound,"pre")
+ local post = getfield(discfound,"post")
+ local replace = getfield(discfound,"replace")
+ if not replace then -- todo: signal simple hyphen
+ local prev = getfield(base,"prev")
+ local copied = copy_node_list(comp)
+ setfield(discnext,"prev",nil) -- also blocks funny assignments
+ setfield(discprev,"next",nil) -- also blocks funny assignments
+ if pre then
+ setfield(discprev,"next",pre)
+ setfield(pre,"prev",discprev)
+ end
+ pre = comp
+ if post then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",discnext)
+ setfield(discnext,"prev",tail)
+ setfield(post,"prev",nil)
+ else
+ post = discnext
+ end
+ setfield(prev,"next",discfound)
+ setfield(next,"prev",discfound)
+ setfield(discfound,"next",next)
+ setfield(discfound,"prev",prev)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base = prev -- restart
+ end
+ elseif subtype == regular_code then
+ -- local prev = getfield(base,"prev")
+ -- local next = getfield(base,"next")
+ local copied = copy_node_list(comp)
+ setfield(discnext,"prev",nil) -- also blocks funny assignments
+ setfield(discprev,"next",nil) -- also blocks funny assignments
+ local pre, post = addhyphens(comp,comp,discnext,subtype) -- takes from components
+ setfield(prev,"next",discfound)
+ setfield(next,"prev",discfound)
+ setfield(discfound,"next",next)
+ setfield(discfound,"prev",prev)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base = next -- or restart
+ else
+ -- forget about it in generic usage
+ end
+ end
end
return head, base
end
@@ -605,7 +816,7 @@ function handlers.gsub_multiple(head,start,kind,lookupname,multiple,sequence)
end
function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
- local s, stop, discfound = getnext(start), nil, false
+ local s, stop = getnext(start), nil
local startchar = getchar(start)
if marks[startchar] then
while s do
@@ -633,24 +844,30 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
else
head, start = markstoligature(kind,lookupname,head,start,stop,lig)
end
- return head, start, true
+ return head, start, true, false
else
-- ok, goto next lookup
end
end
else
- local skipmark = sequence.flags[1]
+ local skipmark = sequence.flags[1]
+ local discfound = false
+ local lastdisc = nil
while s do
local id = getid(s)
- if id == glyph_code and getsubtype(s)<256 then
- if getfont(s) == currentfont then
+ if id == glyph_code and getsubtype(s)<256 then -- not needed
+ if getfont(s) == currentfont then -- also not needed only when mark
local char = getchar(s)
if skipmark and marks[char] then
s = getnext(s)
- else
- local lg = ligature[char]
+ else -- ligature is a tree
+ local lg = ligature[char] -- can there be multiple in a row? maybe in a bad font
if lg then
- stop = s
+ if not discfound and lastdisc then
+ discfound = lastdisc
+ lastdisc = nil
+ end
+ stop = s -- needed for fake so outside then
ligature = lg
s = getnext(s)
else
@@ -661,13 +878,13 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
break
end
elseif id == disc_code then
- discfound = true
+ lastdisc = s
s = getnext(s)
else
break
end
end
- local lig = ligature.ligature
+ local lig = ligature.ligature -- can't we get rid of this .ligature?
if lig then
if stop then
if trace_ligatures then
@@ -685,14 +902,28 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(kind,lookupname),gref(startchar),gref(lig))
end
end
- return head, start, true
+ return head, start, true, discfound
else
- -- weird but happens
+ -- weird but happens, pseudo ligatures ... just the components
end
end
- return head, start, false
+ return head, start, false, discfound
end
+-- function is_gsub_ligature(start,ligature) -- limited case: in disc nodes, only latin, always glyphs
+-- local s = getnext(start)
+-- while s do
+-- local lg = ligature[getchar(s)]
+-- if lg then
+-- ligature = lg
+-- s = getnext(s)
+-- else
+-- return
+-- end
+-- end
+-- return ligature and ligature.ligature
+-- end
+
--[[ldx--
<p>We get hits on a mark, but we're not sure if the it has to be applied so
we need to explicitly test for basechar, baselig and basemark entries.</p>
@@ -855,7 +1086,7 @@ function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence
if al[anchor] then
local ma = markanchors[anchor]
if ma then
- local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -938,16 +1169,16 @@ function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence)
end
end
-function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
+function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence,injection)
local startchar = getchar(start)
- local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,injection) -- ,characters[startchar])
if trace_kerns then
logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
end
return head, start, false
end
-function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
+function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence,lookuphash,i,injection)
-- todo: kerns in disc nodes: pre, post, replace -> loop over disc too
-- todo: kerns in components of ligatures
local snext = getnext(start)
@@ -968,17 +1199,17 @@ function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
-- skip
elseif type(krn) == "table" then
if lookuptype == "pair" then -- probably not needed
- local a, b = krn[2], krn[3]
+ local a, b = krn[2], krn[3]
if a and #a > 0 then
local startchar = getchar(start)
- local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,injection) -- characters[startchar])
if trace_kerns then
logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
if b and #b > 0 then
local startchar = getchar(start)
- local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,injection) -- characters[nextchar])
if trace_kerns then
logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
@@ -998,7 +1229,7 @@ function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
end
done = true
elseif krn ~= 0 then
- local k = setkern(snext,factor,rlmode,krn)
+ local k = setkern(snext,factor,rlmode,krn,injection)
if trace_kerns then
logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
end
@@ -1116,8 +1347,7 @@ as less as needed but that would also make the code even more messy.</p>
-- end
--[[ldx--
-<p>Here we replace start by a single variant, First we delete the rest of the
-match.</p>
+<p>Here we replace start by a single variant.</p>
--ldx]]--
function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
@@ -1125,7 +1355,7 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
local current = start
local subtables = currentlookup.subtables
if #subtables > 1 then
- logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+ logwarning("todo: check if we need to loop over the replacements: % t",subtables)
end
while current do
if getid(current) == glyph_code then
@@ -1147,7 +1377,83 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement))
end
resetinjection(current)
- setfield(current,"char",replacement)
+ if check_discretionaries then
+ -- some fonts use a chain lookup to replace e.g. an f in a fi ligature
+ -- and there can be a disc node in between ... the next code tries to catch
+ -- this
+ local next = getnext(current)
+ local prev = getprev(current) -- todo: just remember it above
+ local done = false
+ if next then
+ if getid(next) == disc_code then
+ local subtype = getsubtype(next)
+ if subtype == discretionary_code then
+ setfield(next,"prev",prev)
+ setfield(prev,"next",next)
+ setfield(current,"prev",nil)
+ setfield(current,"next",nil)
+ local replace = getfield(next,"replace")
+ local pre = getfield(next,"pre")
+ local new = copy_node(current)
+ setfield(new,"char",replacement)
+ if replace then
+ setfield(new,"next",replace)
+ setfield(replace,"prev",new)
+ end
+ if pre then
+ setfield(current,"next",pre)
+ setfield(pre,"prev",current)
+ end
+ setfield(next,"replace",new) -- also updates tail
+ setfield(next,"pre",current) -- also updates tail
+ end
+ start = next
+ done = true
+ local next = getnext(start)
+ if next and getid(next) == disc_code then
+ collapse_disc(start,next)
+ end
+ end
+ end
+ if not done and prev then
+ if getid(prev) == disc_code then
+ local subtype = getsubtype(prev)
+ if subtype == discretionary_code then
+ setfield(next,"prev",prev)
+ setfield(prev,"next",next)
+ setfield(current,"prev",nil)
+ setfield(current,"next",nil)
+ local replace = getfield(prev,"replace")
+ local post = getfield(prev,"post")
+ local new = copy_node(current)
+ setfield(new,"char",replacement)
+ if replace then
+ local tail = find_node_tail(replace)
+ setfield(tail,"next",new)
+ setfield(new,"prev",tail)
+ else
+ replace = new
+ end
+ if post then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",current)
+ setfield(current,"prev",tail)
+ else
+ post = current
+ end
+ setfield(prev,"replace",replace) -- also updates tail
+ setfield(prev,"post",post) -- also updates tail
+ start = prev
+ done = true
+ end
+ end
+ end
+ if not done then
+ setfield(current,"char",replacement)
+ end
+ else
+ setfield(current,"char",replacement)
+ end
end
end
return head, start, true
@@ -1163,8 +1469,7 @@ end
chainmores.gsub_single = chainprocs.gsub_single
--[[ldx--
-<p>Here we replace start by a sequence of new glyphs. First we delete the rest of
-the match.</p>
+<p>Here we replace start by a sequence of new glyphs.</p>
--ldx]]--
function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
@@ -1281,12 +1586,22 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
while s do
local id = getid(s)
if id == disc_code then
- s = getnext(s)
- discfound = true
+ if not discfound then
+ discfound = s
+ end
+ if s == stop then
+ break -- okay? or before the disc
+ else
+ s = getnext(s)
+ end
else
local schar = getchar(s)
if skipmark and marks[schar] then -- marks
+-- if s == stop then -- maybe add this
+-- break
+-- else
s = getnext(s)
+-- end
else
local lg = ligatures[schar]
if lg then
@@ -1315,7 +1630,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
head, start = toligature(kind,lookupname,head,start,stop,l2,currentlookup.flags[1],discfound)
- return head, start, true, nofreplacements
+ return head, start, true, nofreplacements, discfound
elseif trace_bugs then
if start == stop then
logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
@@ -1325,7 +1640,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
end
- return head, start, false, 0
+ return head, start, false, 0, false
end
chainmores.gsub_ligature = chainprocs.gsub_ligature
@@ -1497,7 +1812,7 @@ function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext
if al[anchor] then
local ma = markanchors[anchor]
if ma then
- local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -1597,7 +1912,7 @@ function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lo
if kerns then
kerns = kerns[startchar] -- needed ?
if kerns then
- local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns) -- ,characters[startchar])
if trace_kerns then
logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
end
@@ -1637,30 +1952,30 @@ function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,look
local a, b = krn[2], krn[3]
if a and #a > 0 then
local startchar = getchar(start)
- local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a) -- ,characters[startchar])
if trace_kerns then
logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
if b and #b > 0 then
local startchar = getchar(start)
- local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b) -- ,characters[nextchar])
if trace_kerns then
logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
end
end
else
report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
- local a, b = krn[2], krn[6]
- if a and a ~= 0 then
- local k = setkern(snext,factor,rlmode,a)
- if trace_kerns then
- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- end
- if b and b ~= 0 then
- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
- end
+ -- local a, b = krn[2], krn[6]
+ -- if a and a ~= 0 then
+ -- local k = setkern(snext,factor,rlmode,a)
+ -- if trace_kerns then
+ -- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
+ -- end
+ -- end
+ -- if b and b ~= 0 then
+ -- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
+ -- end
end
done = true
elseif krn ~= 0 then
@@ -1698,11 +2013,7 @@ local function show_skip(kind,chainname,char,ck,class)
end
end
-local quit_on_no_replacement = true
-
-directives.register("otf.chain.quitonnoreplacement",function(value) -- maybe per font
- quit_on_no_replacement = value
-end)
+--hm, do i need to deal with disc here ?
local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
-- local rule, lookuptype, sequence, f, l, lookups = ck[1], ck[2] ,ck[3], ck[4], ck[5], ck[6]
@@ -1773,7 +2084,36 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id == disc_code then
- last = getnext(last)
+ if check_discretionaries then
+ local replace = getfield(last,"replace")
+ if replace then
+ -- so far we never entered this branch
+ while replace do
+ if seq[n][getchar(replace)] then
+ n = n + 1
+ replace = getnext(replace)
+ if not replace then
+ break
+ elseif n > l then
+ -- match = false
+ break
+ end
+ else
+ match = false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries == "trace" then
+ report_chain("check disc action in current")
+ end
+ else
+ last = getnext(last) -- no skipping here
+ end
+ else
+ last = getnext(last) -- no skipping here
+ end
else
match = false
break
@@ -1819,7 +2159,39 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id == disc_code then
- -- skip 'm
+ -- the special case: f i where i becomes dottless i ..
+ if check_discretionaries then
+ local replace = getfield(prev,"replace")
+ if replace then
+ -- we seldom enter this branch (e.g. on brill efficient)
+ replace = find_node_tail(replace)
+ local finish = getprev(replace)
+ while replace do
+ if seq[n][getchar(replace)] then
+ n = n - 1
+ replace = getprev(replace)
+ if not replace or replace == finish then
+ break
+ elseif n < 1 then
+ -- match = false
+ break
+ end
+ else
+ match = false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries == "trace" then
+ report_chain("check disc action in before")
+ end
+ else
+ -- skip 'm
+ end
+ else
+ -- skip 'm
+ end
elseif seq[n][32] then
n = n -1
else
@@ -1828,7 +2200,7 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
prev = getprev(prev)
elseif seq[n][32] then -- somewhat special, as zapfino can have many preceding spaces
- n = n -1
+ n = n - 1
else
match = false
break
@@ -1873,7 +2245,35 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
break
end
elseif id == disc_code then
- -- skip 'm
+ if check_discretionaries then
+ local replace = getfield(current,"replace")
+ if replace then
+ -- so far we never entered this branch
+ while replace do
+ if seq[n][getchar(replace)] then
+ n = n + 1
+ replace = getnext(replace)
+ if not replace then
+ break
+ elseif n > s then
+ break
+ end
+ else
+ match = false
+ break
+ end
+ end
+ if not match then
+ break
+ elseif check_discretionaries == "trace" then
+ report_chain("check disc action in after")
+ end
+ else
+ -- skip 'm
+ end
+ else
+ -- skip 'm
+ end
elseif seq[n][32] then -- brrr
n = n + 1
else
@@ -1966,7 +2366,10 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
done = true
if n and n > 1 then
-- we have a ligature (cf the spec we advance one but we really need to test it
- -- as there are fonts out there that are fuzzy and have too many lookups
+ -- as there are fonts out there that are fuzzy and have too many lookups:
+ --
+ -- U+1105 U+119E U+1105 U+119E : sourcehansansklight: script=hang ccmp=yes
+ --
if i + n > nofchainlookups then
-- if trace_contexts then
-- logprocess("%s: quitting lookups",cref(kind,chainname))
@@ -2090,7 +2493,7 @@ local function initialize(sequence,script,language,enabled)
local scripts = features[kind] --
local languages = scripts[script] or scripts[wildcard]
if languages and (languages[language] or languages[wildcard]) then
- return { valid, autofeatures[kind] or false, sequence.chain or 0, kind, sequence }
+ return { valid, autofeatures[kind] or false, sequence, kind }
end
end
end
@@ -2161,6 +2564,199 @@ end
-- -- the action
-- end
+-- assumptions:
+--
+-- * languages that use complex disc nodes
+
+local function kernrun(disc,run) -- we can assume that prev and next are glyphs
+ --
+ -- we catch <font 1><disc font 2>
+ --
+ if trace_kernruns then
+ report_run("kern") -- will be more detailed
+ end
+ --
+ local prev = getprev(disc) -- todo, keep these in the main loop
+ local next = getnext(disc) -- todo, keep these in the main loop
+ --
+ local pre = getfield(disc,"pre")
+ local post = getfield(disc,"post")
+ local replace = getfield(disc,"replace")
+ --
+ if pre or replace then
+ if not (prev and getid(prev) == glyph_code and getfont(prev) == currentfont and getsubtype(prev)<256) then
+ prev = false
+ end
+ end
+ if post or replace then
+ if not (next and getid(next) == glyph_code and getfont(next) == currentfont and getsubtype(next)<256) then
+ next = false
+ end
+ end
+ --
+ if not pre then
+ -- go on
+ elseif prev then
+ local nest = getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ run(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ run(pre,"preinjections")
+ end
+ --
+ if not post then
+ -- go on
+ elseif next then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(post,"postinjections",tail)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(post,"postinjections")
+ end
+ --
+ if not replace and prev and next then
+ -- this should be already done by discfound
+ elseif prev and next then
+ local tail = find_node_tail(replace)
+ local nest = getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(prev,"replaceinjections",tail)
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ elseif prev then
+ local nest = getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ run(prev,"replaceinjections")
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ elseif next then
+ local tail = find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(replace,"replaceinjections",tail)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(replace,"replaceinjections")
+ end
+end
+
+-- the if new test might be dangerous as luatex will check / set some tail stuff
+-- in a temp node
+
+local function comprun(disc,run)
+ if trace_compruns then
+ report_run("comp: %s",languages.serializediscretionary(disc))
+ end
+ --
+ local pre = getfield(disc,"pre")
+ if pre then
+ local new, done = run(pre)
+ if done then
+ setfield(disc,"pre",new)
+ end
+ end
+ --
+ local post = getfield(disc,"post")
+ if post then
+ local new, done = run(post)
+ if done then
+ setfield(disc,"post",new)
+ end
+ end
+ --
+ local replace = getfield(disc,"replace")
+ if replace then
+ local new, done = run(replace)
+ if done then
+ setfield(disc,"replace",new)
+ end
+ end
+end
+
+local function testrun(disc,trun,crun)
+ local next = getnext(disc)
+ if next then
+ local replace = getfield(disc,"replace")
+ if replace then
+ local prev = getprev(disc)
+ if prev then
+ -- only look ahead
+ local tail = find_node_tail(replace)
+ -- local nest = getprev(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ if trun(replace,next) then
+ setfield(disc,"replace",nil) -- beware, side effects of nest so first
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ setfield(next,"prev",tail)
+ setfield(tail,"next",next)
+ setfield(disc,"prev",nil)
+ setfield(disc,"next",nil)
+ flush_node_list(disc)
+ return replace -- restart
+ else
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ end
+ else
+ -- weird case
+ end
+ else
+ -- no need
+ end
+ else
+ -- weird case
+ end
+ comprun(disc,crun)
+ return next
+end
+
+local function discrun(disc,drun,krun)
+ local next = getnext(disc)
+ local prev = getprev(disc)
+ if trace_discruns then
+ report_run("disc") -- will be more detailed
+ end
+ if next and prev then
+ setfield(prev,"next",next)
+ -- setfield(next,"prev",prev)
+ drun(prev)
+ setfield(prev,"next",disc)
+ -- setfield(next,"prev",disc)
+ end
+ --
+ local pre = getfield(disc,"pre")
+ if not pre then
+ -- go on
+ elseif prev then
+ local nest = getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ krun(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ krun(pre,"preinjections")
+ end
+ return next
+end
+
+-- todo: maybe run lr and rl stretches
+
local function featuresprocessor(head,font,attr)
local lookuphash = lookuphashes[font] -- we can also check sequences here
@@ -2205,21 +2801,28 @@ local function featuresprocessor(head,font,attr)
-- todo: retain prev
+ -- We don't goto the next node of a disc node is created so that we can then treat
+ -- the pre, post and replace. It's a bit of a hack but works out ok for most cases.
+
+ -- there can be less subtype and attr checking in the comprun etc helpers
+
for s=1,#datasets do
- local dataset = datasets[s]
- featurevalue = dataset[1] -- todo: pass to function instead of using a global
-
- local sequence = dataset[5] -- sequences[s] -- also dataset[5]
- local rlparmode = 0
- local topstack = 0
- local success = false
- local attribute = dataset[2]
- local chain = dataset[3] -- sequence.chain or 0
- local typ = sequence.type
- local subtables = sequence.subtables
- if chain < 0 then
+ local dataset = datasets[s]
+ featurevalue = dataset[1] -- todo: pass to function instead of using a global
+ local attribute = dataset[2]
+ local sequence = dataset[3] -- sequences[s] -- also dataset[5]
+ local kind = dataset[4]
+ ----- chain = dataset[5] -- sequence.chain or 0
+ local rlparmode = 0
+ local topstack = 0
+ local success = false
+ local typ = sequence.type
+ local gpossing = typ == "gpos_single" or typ == "gpos_pair"
+ local subtables = sequence.subtables
+ local handler = handlers[typ]
+
+ if typ == "gsub_reversecontextchain" then -- chain < 0
-- this is a limited case, no special treatments like 'init' etc
- local handler = handlers[typ]
-- we need to get rid of this slide! probably no longer needed in latest luatex
local start = find_node_tail(head) -- slow (we can store tail because there's always a skip at the end): todo
while start do
@@ -2233,13 +2836,16 @@ local function featuresprocessor(head,font,attr)
a = true
end
if a then
+ local char = getchar(start)
for i=1,#subtables do
local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ -- local lookupmatch = lookupcache[getchar(start)]
+ local lookupmatch = lookupcache[start]
if lookupmatch then
- head, start, success = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ -- todo: disc?
+ head, start, success = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if success then
break
end
@@ -2260,7 +2866,6 @@ local function featuresprocessor(head,font,attr)
end
end
else
- local handler = handlers[typ]
local ns = #subtables
local start = head -- local ?
rlmode = 0 -- to be checked ?
@@ -2271,13 +2876,15 @@ local function featuresprocessor(head,font,attr)
report_missing_cache(typ,lookupname)
else
- local function subrun(start)
- -- mostly for gsub, gpos would demand a more clever approach
+ local function c_run(start) -- no need to check for 256 and attr probably also the same
local head = start
local done = false
while start do
local id = getid(start)
- if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ if id ~= glyph_code then
+ -- very unlikely
+ start = getnext(start)
+ elseif getfont(start) == font and getsubtype(start) < 256 then
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2289,7 +2896,7 @@ local function featuresprocessor(head,font,attr)
if lookupmatch then
-- sequence kan weg
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
done = true
end
@@ -2299,48 +2906,106 @@ local function featuresprocessor(head,font,attr)
start = getnext(start)
end
else
- start = getnext(start)
+ return head, false
end
end
if done then
- success = true
- return head
+ success = true -- needed in this subrun?
end
+ return head, done
end
- local function kerndisc(disc) -- we can assume that prev and next are glyphs
- local prev = getprev(disc)
- local next = getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- -- setfield(next,"prev",prev)
- local a = getattr(prev,0)
- if a then
- a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ local function t_run(start,stop)
+ while start ~= stop do
+ local id = getid(start)
+ if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ local a = getattr(start,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
+ else
+ a = not attribute or getprop(start,a_state) == attribute
+ end
+ if a then
+ local lookupmatch = lookupcache[getchar(start)]
+ if lookupmatch then -- hm, hyphens can match (tlig) so we need to really check
+ -- if we need more than ligatures we can outline the code and use functions
+ local s = getnext(start)
+ local l = nil
+ while s do
+ local lg = lookupmatch[getchar(s)]
+ if lg then
+ l = lg
+ s = getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ end
+ start = getnext(start)
else
- a = not attribute or getprop(prev,a_state) == attribute
+ break
end
- if a then
- local lookupmatch = lookupcache[getchar(prev)]
- if lookupmatch then
- -- sequence kan weg
- local h, d, ok = handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
- if ok then
- done = true
- success = true
+ end
+ end
+
+ local function d_run(prev) -- we can assume that prev and next are glyphs
+ local a = getattr(prev,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ else
+ a = not attribute or getprop(prev,a_state) == attribute
+ end
+ if a then
+ local lookupmatch = lookupcache[getchar(prev)]
+ if lookupmatch then
+ -- sequence kan weg
+ local h, d, ok = handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done = true
+ success = true
+ end
+ end
+ end
+ end
+
+ local function k_run(sub,injection,last)
+ local a = getattr(sub,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(sub,a_state) == attribute)
+ else
+ a = not attribute or getprop(sub,a_state) == attribute
+ end
+ if a then
+ -- sequence kan weg
+ for n in traverse_nodes(sub) do -- only gpos
+ if n == last then
+ break
+ end
+ local id = getid(n)
+ if id == glyph_code then
+ local lookupmatch = lookupcache[getchar(n)]
+ if lookupmatch then
+ local h, d, ok = handler(sub,n,kind,lookupname,lookupmatch,sequence,lookuphash,1,injection)
+ if ok then
+ done = true
+ success = true
+ end
end
+ else
+ -- message
end
end
- setfield(prev,"next",disc)
- -- setfield(next,"prev",disc)
end
- return next
end
while start do
local id = getid(start)
if id == glyph_code then
- if getfont(start) == font and getsubtype(start) < 256 then
+ if getfont(start) == font and getsubtype(start) < 256 then -- why a 256 test ...
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2348,44 +3013,46 @@ local function featuresprocessor(head,font,attr)
a = not attribute or getprop(start,a_state) == attribute
end
if a then
- local lookupmatch = lookupcache[getchar(start)]
+ local char = getchar(start)
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- sequence kan weg
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
success = true
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
if start then start = getnext(start) end
else
- start = getnext(start)
+ start = getnext(start)
end
else
start = getnext(start)
end
elseif id == disc_code then
- -- mostly for gsub
- if getsubtype(start) == discretionary_code then
- local pre = getfield(start,"pre")
- if pre then
- local new = subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post = getfield(start,"post")
- if post then
- local new = subrun(post)
- if new then setfield(start,"post",new) end
- end
- local replace = getfield(start,"replace")
- if replace then
- local new = subrun(replace)
- if new then setfield(start,"replace",new) end
- end
-elseif typ == "gpos_single" or typ == "gpos_pair" then
- kerndisc(start)
- end
- start = getnext(start)
+ local discretionary = getsubtype(start) == discretionary_code
+ if gpossing then
+ if discretionary then
+ kernrun(start,k_run)
+ else
+ discrun(start,d_run,k_run)
+ end
+ start = getnext(start)
+ elseif discretionary then
+ if typ == "gsub_ligature" then
+ start = testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start = getnext(start)
+ end
+ else
+ start = getnext(start)
+ end
elseif id == whatsit_code then -- will be function
local subtype = getsubtype(start)
if subtype == dir_code then
@@ -2430,15 +3097,18 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
end
end
end
+
else
- local function subrun(start)
- -- mostly for gsub, gpos would demand a more clever approach
+ local function c_run(start)
local head = start
local done = false
while start do
local id = getid(start)
- if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ if id ~= glyph_code then
+ -- very unlikely
+ start = getnext(start)
+ elseif getfont(start) == font and getsubtype(start) < 256 then
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2446,15 +3116,17 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
a = not attribute or getprop(start,a_state) == attribute
end
if a then
+ local char = getchar(start)
for i=1,ns do
local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ -- local lookupmatch = lookupcache[getchar(start)]
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- we could move all code inline but that makes things even more unreadable
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
done = true
break
@@ -2472,50 +3144,127 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
start = getnext(start)
end
else
- start = getnext(start)
+ return head, false
end
end
if done then
success = true
- return head
end
+ return head, done
end
- local function kerndisc(disc) -- we can assume that prev and next are glyphs
- local prev = getprev(disc)
- local next = getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- -- setfield(next,"prev",prev)
- local a = getattr(prev,0)
- if a then
- a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
- else
- a = not attribute or getprop(prev,a_state) == attribute
+ local function d_run(prev)
+ local a = getattr(prev,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ else
+ a = not attribute or getprop(prev,a_state) == attribute
+ end
+ if a then
+ -- brr prev can be disc
+ local char = getchar(prev)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ -- we could move all code inline but that makes things even more unreadable
+ local h, d, ok = handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done = true
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
end
- if a then
- for i=1,ns do
- local lookupname = subtables[i]
- local lookupcache = lookuphash[lookupname]
- if lookupcache then
- local lookupmatch = lookupcache[getchar(prev)]
- if lookupmatch then
- -- we could move all code inline but that makes things even more unreadable
- local h, d, ok = handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
- if ok then
- done = true
- break
+ end
+ end
+
+ local function k_run(sub,injection,last)
+ local a = getattr(sub,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(sub,a_state) == attribute)
+ else
+ a = not attribute or getprop(sub,a_state) == attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do -- only gpos
+ if n == last then
+ break
+ end
+ local id = getid(n)
+ if id == glyph_code then
+ local char = getchar(n)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ local h, d, ok = handler(head,n,kind,lookupname,lookupmatch,sequence,lookuphash,i,injection)
+ if ok then
+ done = true
+ break
+ end
end
+ else
+ report_missing_cache(typ,lookupname)
end
- else
- report_missing_cache(typ,lookupname)
end
+ else
+ -- message
end
end
- setfield(prev,"next",disc)
- -- setfield(next,"prev",disc)
end
- return next
+ end
+
+ local function t_run(start,stop)
+ while start ~= stop do
+ local id = getid(start)
+ if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ local a = getattr(start,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
+ else
+ a = not attribute or getprop(start,a_state) == attribute
+ end
+ if a then
+ local char = getchar(start)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ -- if we need more than ligatures we can outline the code and use functions
+ local s = getnext(start)
+ local l = nil
+ while s do
+ local lg = lookupmatch[getchar(s)]
+ if lg then
+ l = lg
+ s = getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ end
+ start = getnext(start)
+ else
+ break
+ end
+ end
end
while start do
@@ -2533,18 +3282,23 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ local char = getchar(start)
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- we could move all code inline but that makes things even more unreadable
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
success = true
break
elseif not start then
-- don't ask why ... shouldn't happen
break
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
else
report_missing_cache(typ,lookupname)
@@ -2558,27 +3312,24 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
start = getnext(start)
end
elseif id == disc_code then
- -- mostly for gsub
- if getsubtype(start) == discretionary_code then
- local pre = getfield(start,"pre")
- if pre then
- local new = subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post = getfield(start,"post")
- if post then
- local new = subrun(post)
- if new then setfield(start,"post",new) end
+ local discretionary = getsubtype(start) == discretionary_code
+ if gpossing then
+ if discretionary then
+ kernrun(start,k_run)
+ else
+ discrun(start,d_run,k_run)
end
- local replace = getfield(start,"replace")
- if replace then
- local new = subrun(replace)
- if new then setfield(start,"replace",new) end
+ start = getnext(start)
+ elseif discretionary then
+ if typ == "gsub_ligature" then
+ start = testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start = getnext(start)
end
-elseif typ == "gpos_single" or typ == "gpos_pair" then
- kerndisc(start)
+ else
+ start = getnext(start)
end
- start = getnext(start)
elseif id == whatsit_code then
local subtype = getsubtype(start)
if subtype == dir_code then
@@ -2637,6 +3388,8 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
return head, done
end
+-- this might move to the loader
+
local function generic(lookupdata,lookupname,unicode,lookuphash)
local target = lookuphash[lookupname]
if target then
@@ -2646,47 +3399,48 @@ local function generic(lookupdata,lookupname,unicode,lookuphash)
end
end
-local action = {
+local function ligature(lookupdata,lookupname,unicode,lookuphash)
+ local target = lookuphash[lookupname]
+ if not target then
+ target = { }
+ lookuphash[lookupname] = target
+ end
+ for i=1,#lookupdata do
+ local li = lookupdata[i]
+ local tu = target[li]
+ if not tu then
+ tu = { }
+ target[li] = tu
+ end
+ target = tu
+ end
+ target.ligature = unicode
+end
+local function pair(lookupdata,lookupname,unicode,lookuphash)
+ local target = lookuphash[lookupname]
+ if not target then
+ target = { }
+ lookuphash[lookupname] = target
+ end
+ local others = target[unicode]
+ local paired = lookupdata[1]
+ if others then
+ others[paired] = lookupdata
+ else
+ others = { [paired] = lookupdata }
+ target[unicode] = others
+ end
+end
+
+local action = {
substitution = generic,
multiple = generic,
alternate = generic,
position = generic,
-
- ligature = function(lookupdata,lookupname,unicode,lookuphash)
- local target = lookuphash[lookupname]
- if not target then
- target = { }
- lookuphash[lookupname] = target
- end
- for i=1,#lookupdata do
- local li = lookupdata[i]
- local tu = target[li]
- if not tu then
- tu = { }
- target[li] = tu
- end
- target = tu
- end
- target.ligature = unicode
- end,
-
- pair = function(lookupdata,lookupname,unicode,lookuphash)
- local target = lookuphash[lookupname]
- if not target then
- target = { }
- lookuphash[lookupname] = target
- end
- local others = target[unicode]
- local paired = lookupdata[1]
- if others then
- others[paired] = lookupdata
- else
- others = { [paired] = lookupdata }
- target[unicode] = others
- end
- end,
-
+ ligature = ligature,
+ pair = pair,
+ kern = pair,
}
local function prepare_lookups(tfmdata)
@@ -2699,12 +3453,17 @@ local function prepare_lookups(tfmdata)
local lookuptypes = resources.lookuptypes
local characters = tfmdata.characters
local descriptions = tfmdata.descriptions
+ local duplicates = resources.duplicates
-- we cannot free the entries in the descriptions as sometimes we access
-- then directly (for instance anchors) ... selectively freeing does save
-- much memory as it's only a reference to a table and the slot in the
-- description hash is not freed anyway
+ -- we can delay this using metatables so that we don't make the hashes for
+ -- features we don't use but then we need to loop over the characters
+ -- many times so we gain nothing
+
for unicode, character in next, characters do -- we cannot loop over descriptions !
local description = descriptions[unicode]
@@ -2714,7 +3473,7 @@ local function prepare_lookups(tfmdata)
local lookups = description.slookups
if lookups then
for lookupname, lookupdata in next, lookups do
- action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
@@ -2724,7 +3483,7 @@ local function prepare_lookups(tfmdata)
local lookuptype = lookuptypes[lookupname]
for l=1,#lookuplist do
local lookupdata = lookuplist[l]
- action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptype](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
end
@@ -2748,7 +3507,7 @@ local function prepare_lookups(tfmdata)
for name, anchor in next, anchors do
local lookups = anchor_to_lookup[name]
if lookups then
- for lookup, _ in next, lookups do
+ for lookup in next, lookups do
local target = lookuphash[lookup]
if target then
target[unicode] = anchors
@@ -2768,6 +3527,8 @@ local function prepare_lookups(tfmdata)
end
+-- so far
+
local function split(replacement,original)
local result = { }
for i=1,#replacement do
@@ -2843,7 +3604,7 @@ local function prepare_contextchains(tfmdata)
-- use sequence[start] instead but it's somewhat ugly.
nt = nt + 1
t[nt] = { nofrules, lookuptype, sequence, start, stop, rule.lookups, replacements }
- for unic, _ in next, sequence[start] do
+ for unic in next, sequence[start] do
local cu = contexts[unic]
if not cu then
contexts[unic] = t
diff --git a/tex/generic/context/luatex/luatex-fonts.lua b/tex/generic/context/luatex/luatex-fonts.lua
index fe0e9de77..738118945 100644
--- a/tex/generic/context/luatex/luatex-fonts.lua
+++ b/tex/generic/context/luatex/luatex-fonts.lua
@@ -29,7 +29,7 @@ if not modules then modules = { } end modules ['luatex-fonts'] = {
-- texio.write_nl("")
-- texio.write_nl("--------------------------------------------------------------------------------")
--- texio.write_nl("The font code has been brought in sync with the context version of 2014.12.21 so")
+-- texio.write_nl("The font code has been brought in sync with the context version of 2015.08.31 so")
-- texio.write_nl("if things don't work out as expected the interfacing needs to be checked. When")
-- texio.write_nl("this works as expected a second upgrade will happen that gives a more complete")
-- texio.write_nl("support and another sync with the context code (that new code is currently being")
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 21:53:27 +0000