diff options
Diffstat (limited to 'tex/context/base/node-tst.lua')
| -rw-r--r-- | tex/context/base/node-tst.lua | 69 |
1 files changed, 27 insertions, 42 deletions
diff --git a/tex/context/base/node-tst.lua b/tex/context/base/node-tst.lua index 7f5102d5f..bfe0051bd 100644 --- a/tex/context/base/node-tst.lua +++ b/tex/context/base/node-tst.lua @@ -24,26 +24,17 @@ local rightskip_code = skipcodes.rightskip local abovedisplayshortskip_code = skipcodes.abovedisplayshortskip local belowdisplayshortskip_code = skipcodes.belowdisplayshortskip -local nuts = nodes.nuts +local find_node_tail = node.tail or node.slide -local getfield = nuts.getfield -local getnext = nuts.getnext -local getprev = nuts.getprev -local getid = nuts.getid -local getchar = nuts.getchar -local getsubtype = nuts.getsubtype - -local find_node_tail = nuts.tail - -function nuts.leftmarginwidth(n) -- todo: three values +function nodes.leftmarginwidth(n) -- todo: three values while n do - local id = getid(n) + local id = n.id if id == glue_code then - return getsubtype(n) == leftskip_code and getfield(getfield(n,"spec"),"width") or 0 + return n.subtype == leftskip_code and n.spec.width or 0 elseif id == whatsit_code then - n = getnext(n) + n = n.next elseif id == hlist_code then - return getfield(n,"width") + return n.width else break end @@ -51,15 +42,15 @@ function nuts.leftmarginwidth(n) -- todo: three values return 0 end -function nuts.rightmarginwidth(n) +function nodes.rightmarginwidth(n) if n then n = find_node_tail(n) while n do - local id = getid(n) + local id = n.id if id == glue_code then - return getsubtype(n) == rightskip_code and getfield(getfield(n,"spec"),"width") or 0 + return n.subtype == rightskip_code and n.spec.width or 0 elseif id == whatsit_code then - n = getprev(n) + n = n.prev else break end @@ -68,15 +59,15 @@ function nuts.rightmarginwidth(n) return false end -function nuts.somespace(n,all) +function nodes.somespace(n,all) if n then - local id = getid(n) + local id = n.id if id == glue_code then - return (all or (getfield(getfield(n,"spec"),"width") ~= 0)) and glue_code + return (all or (n.spec.width ~= 0)) and glue_code elseif id == kern_code then - return (all or (getfield(n,"kern") ~= 0)) and kern + return (all or (n.kern ~= 0)) and kern elseif id == glyph_code then - local category = chardata[getchar(n)].category + local category = chardata[n.char].category -- maybe more category checks are needed return (category == "zs") and glyph_code end @@ -84,12 +75,12 @@ function nuts.somespace(n,all) return false end -function nuts.somepenalty(n,value) +function nodes.somepenalty(n,value) if n then - local id = getid(n) + local id = n.id if id == penalty_code then if value then - return getfield(n,"penalty") == value + return n.penalty == value else return true end @@ -98,38 +89,32 @@ function nuts.somepenalty(n,value) return false end -function nuts.is_display_math(head) - local n = getprev(head) +function nodes.is_display_math(head) + local n = head.prev while n do - local id = getid(n) + local id = n.id if id == penalty_code then elseif id == glue_code then - if getsubtype(n) == abovedisplayshortskip_code then + if n.subtype == abovedisplayshortskip_code then return true end else break end - n = getprev(n) + n = n.prev end - n = getnext(head) + n = head.next while n do - local id = getid(n) + local id = n.id if id == penalty_code then elseif id == glue_code then - if getsubtype(n) == belowdisplayshortskip_code then + if n.subtype == belowdisplayshortskip_code then return true end else break end - n = getnext(n) + n = n.next end return false end - -nodes.leftmarginwidth = nodes.vianuts(nuts.leftmarginwidth) -nodes.rightmarginwidth = nodes.vianuts(nuts.rightmarginwidth) -nodes.somespace = nodes.vianuts(nuts.somespace) -nodes.somepenalty = nodes.vianuts(nuts.somepenalty) -nodes.is_display_math = nodes.vianuts(nuts.is_display_math) |