diff options
Diffstat (limited to 'tex/context/base/mkiv/spac-chr.lua')
| -rw-r--r-- | tex/context/base/mkiv/spac-chr.lua | 108 |
1 files changed, 89 insertions, 19 deletions
diff --git a/tex/context/base/mkiv/spac-chr.lua b/tex/context/base/mkiv/spac-chr.lua index fe402ed87..0fa639f92 100644 --- a/tex/context/base/mkiv/spac-chr.lua +++ b/tex/context/base/mkiv/spac-chr.lua @@ -30,16 +30,17 @@ local nuts = nodes.nuts local tonode = nuts.tonode local tonut = nuts.tonut -local getfield = nuts.getfield -local setfield = nuts.setfield local getnext = nuts.getnext local getprev = nuts.getprev local getattr = nuts.getattr local setattr = nuts.setattr +local getlang = nuts.getlang +local setchar = nuts.setchar local setattrlist = nuts.setattrlist local getfont = nuts.getfont local getchar = nuts.getchar local setsubtype = nuts.setsubtype +local setdisc = nuts.setdisc local isglyph = nuts.isglyph local setcolor = nodes.tracers.colors.set @@ -48,6 +49,9 @@ local insert_node_before = nuts.insert_before local insert_node_after = nuts.insert_after local remove_node = nuts.remove local traverse_id = nuts.traverse_id +local traverse_char = nuts.traverse_char + +local copy_node = nuts.copy local tasks = nodes.tasks @@ -56,12 +60,15 @@ local new_penalty = nodepool.penalty local new_glue = nodepool.glue local new_kern = nodepool.kern local new_rule = nodepool.rule +local new_disc = nodepool.disc local nodecodes = nodes.nodecodes local skipcodes = nodes.skipcodes -local glyph_code = nodecodes.glyph +local disccodes = nodes.disccodes -local space_skip_code = skipcodes["spaceskip"] +local glyph_code = nodecodes.glyph +local space_skip_code = skipcodes.spaceskip +local explicit_code = disccodes.explicit local chardata = characters.data local is_punctuation = characters.is_punctuation @@ -136,6 +143,7 @@ local function nbsp(head,current) setsubtype(current,space_skip_code) else head, current = inject_nobreak_space(0x00A0,head,current,para.space,para.spacestretch,para.spaceshrink) + setsubtype(current,space_skip_code) end return head, current end @@ -148,16 +156,37 @@ function characters.replacenbsp(head,original) return head, current end +-- function characters.replacenbspaces(head) +-- for current in traverse_id(glyph_code,head) do +-- if getchar(current) == 0x00A0 then +-- local h = nbsp(head,current) +-- if h then +-- head = remove_node(h,current,true) +-- end +-- end +-- end +-- return head +-- end + function characters.replacenbspaces(head) - for current in traverse_id(glyph_code,head) do + local head = tonut(head) + local wipe = false + for current in traverse_id(glyph_code,head) do -- can be anytiem so no traverse_char if getchar(current) == 0x00A0 then + if wipe then + head = remove_node(h,current,true) + wipe = false + end local h = nbsp(head,current) if h then - head = remove_node(h,current,true) + wipe = current end end end - return head + if wipe then + head = remove_node(h,current,true) + end + return tonode(head) end -- This initialization might move someplace else if we need more of it. The problem is that @@ -219,6 +248,10 @@ local methods = { return nbsp(head,current) end, + [0x00AD] = function(head,current) -- softhyphen + return insert_node_after(head,current,languages.explicithyphen(current)) + end, + [0x2000] = function(head,current) -- enquad return inject_quad_space(0x2000,head,current,1/2) end, @@ -272,9 +305,11 @@ local methods = { end, [0x205F] = function(head,current) -- math thinspace - return inject_nobreak_space(0x205F,head,current,fontparameters[getfont(current)].space/8) + return inject_nobreak_space(0x205F,head,current,4*fontquads[getfont(current)]/18) end, + -- The next one is also a bom so maybe only when we have glyphs around it + -- [0xFEFF] = function(head,current) -- zerowidthnobreakspace -- return head, current -- end, @@ -283,29 +318,64 @@ local methods = { characters.methods = methods -function characters.handler(head) -- todo: use traverse_id - head = tonut(head) - local current = head - local done = false - while current do - local char, id = isglyph(current) +-- function characters.handler(head) -- todo: use traverse_id +-- head = tonut(head) +-- local current = head +-- local done = false +-- while current do +-- local char, id = isglyph(current) +-- if char then +-- local next = getnext(current) +-- local method = methods[char] +-- if method then +-- if trace_characters then +-- report_characters("replacing character %C, description %a",char,lower(chardata[char].description)) +-- end +-- local h = method(head,current) +-- if h then +-- head = remove_node(h,current,true) +-- end +-- done = true +-- end +-- current = next +-- else +-- current = getnext(current) +-- end +-- end +-- return tonode(head), done +-- end + +-- for current, char, font in traverse_char_data(head) will save 0.015 on a 300 page doc + +-- this also works ok in math as we run over glyphs and these stay glyphs ... not sure +-- about scripts and such but that is not important anyway ... some day we can consider +-- special definitions in math + +function characters.handler(head) + local head = tonut(head) + local wipe = false + for current in traverse_char(head) do + local char = getchar(current) if char then - local next = getnext(current) local method = methods[char] if method then + if wipe then + head = remove_node(head,wipe,true) + wipe = false + end if trace_characters then report_characters("replacing character %C, description %a",char,lower(chardata[char].description)) end local h = method(head,current) if h then - head = remove_node(h,current,true) + wipe = current end done = true end - current = next - else - current = getnext(current) end end + if wipe then + head = remove_node(head,wipe,true) + end return tonode(head), done end |