diff options
Diffstat (limited to 'tex/context/base/mkiv/typo-krn.lua')
| -rw-r--r-- | tex/context/base/mkiv/typo-krn.lua | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/tex/context/base/mkiv/typo-krn.lua b/tex/context/base/mkiv/typo-krn.lua index f4f1215e1..489375e9b 100644 --- a/tex/context/base/mkiv/typo-krn.lua +++ b/tex/context/base/mkiv/typo-krn.lua @@ -28,7 +28,6 @@ local flush_node = nuts.flush_node local insert_node_before = nuts.insert_before local insert_node_after = nuts.insert_after local end_of_math = nuts.end_of_math -local use_components = nuts.use_components local copy_node = nuts.copy local getnext = nuts.getnext @@ -365,209 +364,6 @@ local function closest_bound(b,get) end end --- function kerns.handler(head) --- local start = head --- local lastfont = nil --- local keepligature = kerns.keepligature --- local keeptogether = kerns.keeptogether --- local fillup = false --- local bound = false --- local prev = nil --- local previd = nil --- local prevchar = nil --- local prevfont = nil --- local prevmark = nil --- while start do --- -- fontkerns don't get the attribute but they always sit between glyphs so --- -- are always valid bound .. disc nodes also somtimes don't get them --- local id = getid(start) --- local attr = takeattr(start,a_kerns) --- if attr and attr > 0 then --- local krn = mapping[attr] --- if krn == v_max then --- krn = .25 --- fillup = true --- else --- fillup = false --- end --- if not krn or krn == 0 then --- bound = false --- elseif id == glyph_code then --- if keepligature and keepligature(start) then --- -- keep 'm --- else --- -- we could use the subtype ligature but that's also a call --- -- todo: check tounicode and use that information to split --- head, start = use_components(head,start) --- end --- local char, font = isglyph(start) --- local mark = markdata[font] --- if not bound then --- -- yet --- elseif mark[char] then --- -- skip --- elseif previd == kern_code then --- if getsubtype(prev) == fontkern_code then --- local inject = true --- if keeptogether then --- if previd == glyph_code and keeptogether(prev,start) then --- inject = false --- end --- end --- if inject then --- -- not yet ok, as injected kerns can be overlays (from node-inj.lua) --- setkern(prev,getkern(prev) + quaddata[font]*krn,userkern_code) --- end --- end --- elseif previd == glyph_code then --- if prevfont == font then --- if keeptogether and keeptogether(prev,start) then --- -- keep 'm --- else --- local data = chardata[font][prevchar] --- local kerns = data and data.kerns --- local kern = (kerns and kerns[char] or 0) + quaddata[font]*krn --- insert_node_before(head,start,kern_injector(fillup,kern)) --- end --- else --- insert_node_before(head,start,kern_injector(fillup,quaddata[font]*krn)) --- end --- end --- prev = start --- prevchar = char --- prevfont = font --- prevmark = mark --- previd = id --- bound = true --- elseif id == disc_code then --- local prev, next, pglyph, nglyph -- delayed till needed --- local subtype = getsubtype(start) --- -- if subtype == automaticdisc_code then --- -- -- this is kind of special, as we have already injected the --- -- -- previous kern --- -- local prev = getprev(start) --- -- local pglyph = prev and getid(prev) == glyph_code --- -- languages.expand(start,pglyph and prev) --- -- -- we can have a different start now --- -- elseif subtype ~= discretionarydisc_code then --- -- prev = getprev(start) --- -- pglyph = prev and getid(prev) == glyph_code --- -- languages.expand(start,pglyph and prev) --- -- end --- local pre, post, replace = getdisc(start) --- local indeed = false --- if pre then --- local okay = false --- if not prev then --- prev = getprev(start) --- pglyph = prev and getid(prev) == glyph_code --- end --- if pglyph then --- pre, okay = inject_begin(pre,prev,keeptogether,krn,okay) --- end --- pre, okay = process_list(pre,keeptogether,krn,false,okay) --- if okay then --- indeed = true --- end --- end --- if post then --- local okay = false --- if not next then --- next = getnext(start) --- nglyph = next and getid(next) == glyph_code --- end --- if nglyph then --- post, okay = inject_end(post,next,keeptogether,krn,okay) --- end --- post, okay = process_list(post,keeptogether,krn,false,okay) --- if okay then --- indeed = true --- end --- end --- if replace then --- local okay = false --- if not prev then --- prev = getprev(start) --- pglyph = prev and getid(prev) == glyph_code --- end --- if pglyph then --- replace, okay = inject_begin(replace,prev,keeptogether,krn,okay) --- end --- if not next then --- next = getnext(start) --- nglyph = next and getid(next) == glyph_code --- end --- if nglyph then --- replace, okay = inject_end(replace,next,keeptogether,krn,okay) --- end --- replace, okay = process_list(replace,keeptogether,krn,false,okay) --- if okay then --- indeed = true --- end --- elseif prevfont then --- replace = new_kern(quaddata[prevfont]*krn) --- indeed = true --- end --- if indeed then --- setdisc(start,pre,post,replace) --- end --- bound = false --- elseif id == kern_code then --- bound = getsubtype(start) == fontkern_code --- prev = start --- previd = id --- elseif id == glue_code then --- local subtype = getsubtype(start) --- if subtype == userskip_code or subtype == xspaceskip_code or subtype == spaceskip_code then --- local width, stretch, shrink, stretch_order, shrink_order = getglue(start) --- if width > 0 then --- local w = width + gluefactor * width * krn --- stretch = stretch * w / width --- shrink = shrink * w / width --- if fillup then --- stretch = 2 * stretch --- shrink = 2 * shrink --- stretch_order = 1 --- -- shrink_order = 1 ? --- end --- setglue(start,w,stretch,shrink,stretch_order,shrink_order) --- end --- end --- bound = false --- elseif id == hlist_code or id == vlist_code then --- local subtype = getsubtype(start) --- if subtype == unknownlist_code or subtype == boxlist_code then --- -- special case --- local b, f = closest_bound(start,getprev) --- if b then --- insert_node_before(head,start,kern_injector(fillup,quaddata[f]*krn)) --- end --- local b, f = closest_bound(start,getnext) --- if b then --- insert_node_after(head,start,kern_injector(fillup,quaddata[f]*krn)) --- end --- end --- bound = false --- elseif id == math_code then --- start = end_of_math(start) --- bound = false --- end --- if start then --- start = getnext(start) --- end --- elseif id == kern_code then --- bound = getsubtype(start) == fontkern_code --- prev = start --- previd = id --- start = getnext(start) --- else --- bound = false --- start = getnext(start) --- end --- end --- return head --- end - function kerns.handler(head) local start = head local lastfont = nil @@ -601,7 +397,6 @@ function kerns.handler(head) if keepligature and keepligature(start) then -- keep 'm else - -- head, start = use_components(head,start) -- beware, these are not kerned so we mighty need a kern only pass -- maybe some day .. anyway, one should disable ligaturing local data = chardata[font][char] |