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author | Context Git Mirror Bot <phg42.2a@gmail.com> | 2015-02-03 22:15:05 +0100 |
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committer | Context Git Mirror Bot <phg42.2a@gmail.com> | 2015-02-03 22:15:05 +0100 |
commit | b52a3ec06867c6722c0f6aeeeae57029235e53fb (patch) | |
tree | 108a6cf2226cefbfe7517c8b4b4a1a3d9d7adbc3 /tex/context/base/font-inj.lua | |
parent | dd7b0113318332d153bf0b8cddbdfef4e1e9f90f (diff) | |
download | context-b52a3ec06867c6722c0f6aeeeae57029235e53fb.tar.gz |
2015-02-03 21:39:00
Diffstat (limited to 'tex/context/base/font-inj.lua')
-rw-r--r-- | tex/context/base/font-inj.lua | 323 |
1 files changed, 163 insertions, 160 deletions
diff --git a/tex/context/base/font-inj.lua b/tex/context/base/font-inj.lua index 87330a393..87d3f9b27 100644 --- a/tex/context/base/font-inj.lua +++ b/tex/context/base/font-inj.lua @@ -79,19 +79,20 @@ function injections.resetcounts() keepregisteredcounts = false end +-- We need to make sure that a possible metatable will not kick in +-- unexpectedly. + function injections.reset(n) - local p = rawget(properties,start) - if p and p.injections then - -- todo: decrement counters? tricky as we then need to change the nof* to not increment - -- when we change a property - p.injections = nil -- should we keep the liga index? + local p = rawget(properties,n) + if p and rawget(p,"injections") then + p.injections = nil end end function injections.setligaindex(n,index) local p = rawget(properties,n) if p then - local i = p.injections + local i = rawget(p,"injections") if i then i.ligaindex = index else @@ -111,8 +112,8 @@ end function injections.getligaindex(n,default) local p = rawget(properties,n) if p then - p = p.injections - if p then + local i = rawget(p,"injections") + if i then return p.ligaindex or default end end @@ -132,7 +133,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne -- local p = rawget(properties,start) if p then - local i = p.injections + local i = rawget(p,"injections") if i then i.cursiveanchor = true else @@ -149,7 +150,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne end local p = rawget(properties,nxt) if p then - local i = p.injections + local i = rawget(p,"injections") if i then i.cursivex = dx i.cursivey = dy @@ -183,7 +184,7 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l end local p = rawget(properties,current) if p then - local i = p.injections + local i = rawget(p,"injections") if i then if leftkern ~= 0 or rightkern ~= 0 then i.leftkern = i.leftkern or 0 + leftkern @@ -238,7 +239,7 @@ function injections.setkern(current,factor,rlmode,x,injection) injection = "injections" end if p then - local i = p[injection] + local i = rawget(p,injection) if i then i.leftkern = dx + i.leftkern or 0 else @@ -268,7 +269,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean end local p = rawget(properties,start) if p then - local i = p.injections + local i = rawget(p,"injections") if i then i.markx = dx i.marky = dy @@ -311,18 +312,18 @@ local function show(n,what,nested,symbol) if n then local p = rawget(properties,n) if p then - local p = p[what] - if p then - local leftkern = p.leftkern or 0 - local rightkern = p.rightkern or 0 - local yoffset = p.yoffset or 0 - local markx = p.markx or 0 - local marky = p.marky or 0 - local markdir = p.markdir or 0 - local markbase = p.markbase or 0 -- will be markbasenode - local cursivex = p.cursivex or 0 - local cursivey = p.cursivey or 0 - local ligaindex = p.ligaindex or 0 + local i = p[what] + if i then + local leftkern = i.leftkern or 0 + local rightkern = i.rightkern or 0 + local yoffset = i.yoffset or 0 + local markx = i.markx or 0 + local marky = i.marky or 0 + local markdir = i.markdir or 0 + local markbase = i.markbase or 0 -- will be markbasenode + local cursivex = i.cursivex or 0 + local cursivey = i.cursivey or 0 + local ligaindex = i.ligaindex or 0 local margin = nested and 4 or 2 -- if rightkern ~= 0 or yoffset ~= 0 then @@ -412,10 +413,6 @@ local function collect_glyphs_1(head) 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 pn = rawget(properties,n) - if pn then - pn = pn.injections - end local f = getfont(n) if f ~= nf then nf = f @@ -429,10 +426,14 @@ local function collect_glyphs_1(head) glyphs[nofglyphs] = n end -- yoffsets can influence curs steps - if pn then - local yoffset = pn.yoffset - if yoffset and yoffset ~= 0 then - setfield(n,"yoffset",yoffset) + local p = rawget(properties,n) + if p then + local i = rawget(p,"injections") + if i then + local yoffset = i.yoffset + if yoffset and yoffset ~= 0 then + setfield(n,"yoffset",yoffset) + end end end end @@ -468,21 +469,18 @@ local function inject_marks(marks,nofmarks) local n = marks[i] local pn = rawget(properties,n) if pn then - pn = pn.injections - end - if pn then - -- local markbase = pn.markbase - -- if markbase then - -- local p = markanchors[markbase] + pn = rawget(pn,"injections") + if pn then local p = pn.markbasenode if p then local px = getfield(p,"xoffset") local ox = 0 + local rightkern = nil local pp = rawget(properties,p) if pp then - pp = pp.injections + pp = rawget(pp,"injections") + rightkern = pp.rightkern end - local rightkern = pp and pp.rightkern if rightkern then -- x and w ~= 0 if pn.markdir < 0 then -- kern(w-x) glyph(p) kern(x) mark(n) @@ -491,7 +489,12 @@ local function inject_marks(marks,nofmarks) else -- kern(x) glyph(p) kern(w-x) mark(n) -- ox = px - getfield(p,"width") + pn.markx - pp.leftkern - ox = px - pn.markx - pp.leftkern + local leftkern = pp.leftkern + if leftkern then + ox = px - pn.markx + else + ox = px - pn.markx - leftkern + end -- report_injections("l2r case 1: %p",ox) end else @@ -529,7 +532,7 @@ local function inject_marks(marks,nofmarks) -- normally this can't happen (only when in trace mode which is a special case anyway) -- report_injections("missing mark anchor %i",pn.markbase or 0) end - -- end + end end end end @@ -541,7 +544,7 @@ local function inject_cursives(glyphs,nofglyphs) local n = glyphs[i] local pn = rawget(properties,n) if pn then - pn = pn.injections + pn = rawget(pn,"injections") end if pn then local cursivex = pn.cursivex @@ -623,16 +626,16 @@ local function inject_kerns(head,glyphs,nofglyphs) local n = glyphs[i] local pn = rawget(properties,n) if pn then - pn = pn.injections - end - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then - insert_node_before(head,n,newkern(leftkern)) -- type 0/2 - end - local rightkern = pn.rightkern - if rightkern and rightkern ~= 0 then - insert_node_after(head,n,newkern(rightkern)) -- type 0/2 + 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 end end @@ -685,10 +688,10 @@ local function inject_kerns_only(head,where) if p then local d = getfield(p,"post") if d then - local pn = pn.postinjections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"postinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then local t = find_tail(d) insert_node_after(d,t,newkern(leftkern)) end @@ -696,28 +699,28 @@ local function inject_kerns_only(head,where) end local d = getfield(p,"replace") if d then - local pn = pn.replaceinjections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"replaceinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then local t = find_tail(d) insert_node_after(d,t,newkern(leftkern)) end end else - local pn = pn.injections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"injections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then setfield(p,"replace",newkern(leftkern)) end end end else - local pn = pn.injections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"injections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then head = insert_node_before(head,n,newkern(leftkern)) end end @@ -735,12 +738,12 @@ local function inject_kerns_only(head,where) if getsubtype(n) < 256 then local pn = rawget(properties,n) if pn then - pn = pn.preinjections - end - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) + local i = rawget(pn,"preinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end end end else @@ -758,12 +761,12 @@ local function inject_kerns_only(head,where) if getsubtype(n) < 256 then local pn = rawget(properties,n) if pn then - pn = pn.postinjections - end - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) + local i = rawget(pn,"postinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end end end else @@ -781,12 +784,12 @@ local function inject_kerns_only(head,where) if getsubtype(n) < 256 then local pn = rawget(properties,n) -- why can it be empty { } if pn then - pn = pn.replaceinjections - end - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) + local i = rawget(pn,"replaceinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end end end else @@ -829,14 +832,14 @@ local function inject_pairs_only(head,where) if p then local d = getfield(p,"post") if d then - local pn = pn.postinjections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"postinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then local t = find_tail(d) insert_node_after(d,t,newkern(leftkern)) end - -- local rightkern = pn.rightkern + -- local rightkern = i.rightkern -- if rightkern and rightkern ~= 0 then -- insert_node_after(head,n,newkern(rightkern)) -- n = getnext(n) -- to be checked @@ -845,27 +848,27 @@ local function inject_pairs_only(head,where) end local d = getfield(p,"replace") if d then - local pn = pn.replaceinjections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"replaceinjections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then local t = find_tail(d) insert_node_after(d,t,newkern(leftkern)) end - -- local rightkern = pn.rightkern + -- local rightkern = i.rightkern -- if rightkern and rightkern ~= 0 then -- insert_node_after(head,n,newkern(rightkern)) -- n = getnext(n) -- to be checked -- end end else - local pn = pn.injections - if pn then - local leftkern = pn.leftkern - if leftkern ~= 0 then + local i = rawget(pn,"injections") + if i then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then setfield(p,"replace",newkern(leftkern)) end - -- local rightkern = pn.rightkern + -- local rightkern = i.rightkern -- if rightkern and rightkern ~= 0 then -- insert_node_after(head,n,newkern(rightkern)) -- n = getnext(n) -- to be checked @@ -874,17 +877,17 @@ local function inject_pairs_only(head,where) end else -- this is the most common case - local pn = pn.injections - if pn then - local yoffset = pn.yoffset + local i = rawget(pn,"injections") + if i then + local yoffset = i.yoffset if yoffset and yoffset ~= 0 then setfield(n,"yoffset",yoffset) end - local leftkern = pn.leftkern - if leftkern ~= 0 then + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then insert_node_before(head,n,newkern(leftkern)) end - local rightkern = pn.rightkern + local rightkern = i.rightkern if rightkern and rightkern ~= 0 then insert_node_after(head,n,newkern(rightkern)) n = getnext(n) -- to be checked @@ -902,23 +905,23 @@ local function inject_pairs_only(head,where) local h = d for n in traverse_id(glyph_code,d) do if getsubtype(n) < 256 then - local pn = rawget(properties,n) - if pn then - pn = pn.preinjections - end - if pn then - local yoffset = pn.yoffset - if yoffset and yoffset ~= 0 then - setfield(n,"yoffset",yoffset) - end - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) - end - local rightkern = pn.rightkern - if rightkern and rightkern ~= 0 then - insert_node_after(head,n,newkern(rightkern)) - n = getnext(n) -- to be checked + local p = rawget(properties,n) + if p then + local i = rawget(p,"preinjections") + if i then + local yoffset = i.yoffset + if yoffset and yoffset ~= 0 then + setfield(n,"yoffset",yoffset) + end + local leftkern = i.leftkern + if leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end + local rightkern = i.rightkern + if rightkern and rightkern ~= 0 then + insert_node_after(head,n,newkern(rightkern)) + n = getnext(n) -- to be checked + end end end else @@ -934,23 +937,23 @@ local function inject_pairs_only(head,where) local h = d for n in traverse_id(glyph_code,d) do if getsubtype(n) < 256 then - local pn = rawget(properties,n) - if pn then - pn = pn.postinjections - end - if pn then - local yoffset = pn.yoffset - if yoffset and yoffset ~= 0 then - setfield(n,"yoffset",yoffset) - end - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) - end - local rightkern = pn.rightkern - if rightkern and rightkern ~= 0 then - insert_node_after(head,n,newkern(rightkern)) - n = getnext(n) -- to be checked + local p = rawget(properties,n) + if p then + local i = rawget(p,"postinjections") + if i then + local yoffset = i.yoffset + if yoffset and yoffset ~= 0 then + setfield(n,"yoffset",yoffset) + end + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end + local rightkern = i.rightkern + if rightkern and rightkern ~= 0 then + insert_node_after(head,n,newkern(rightkern)) + n = getnext(n) -- to be checked + end end end else @@ -966,23 +969,23 @@ local function inject_pairs_only(head,where) local h = d for n in traverse_id(glyph_code,d) do if getsubtype(n) < 256 then - local pn = rawget(properties,n) - if pn then - pn = pn.replaceinjections - end - if pn then - local yoffset = pn.yoffset - if yoffset and yoffset ~= 0 then - setfield(n,"yoffset",yoffset) - end - local leftkern = pn.leftkern - if leftkern ~= 0 then - h = insert_node_before(h,n,newkern(leftkern)) - end - local rightkern = pn.rightkern - if rightkern and rightkern ~= 0 then - insert_node_after(head,n,newkern(rightkern)) - n = getnext(n) -- to be checked + local p = rawget(properties,n) + if p then + local i = rawget(pn,"replaceinjections") + if i then + local yoffset = i.yoffset + if yoffset and yoffset ~= 0 then + setfield(n,"yoffset",yoffset) + end + local leftkern = i.leftkern + if leftkern and leftkern ~= 0 then + h = insert_node_before(h,n,newkern(leftkern)) + end + local rightkern = i.rightkern + if rightkern and rightkern ~= 0 then + insert_node_after(head,n,newkern(rightkern)) + n = getnext(n) -- to be checked + end end end else |