diff options
Diffstat (limited to 'tex/context/base/mkiv/node-aux.lua')
| -rw-r--r-- | tex/context/base/mkiv/node-aux.lua | 198 |
1 files changed, 13 insertions, 185 deletions
diff --git a/tex/context/base/mkiv/node-aux.lua b/tex/context/base/mkiv/node-aux.lua index 84567068b..d6a9950fe 100644 --- a/tex/context/base/mkiv/node-aux.lua +++ b/tex/context/base/mkiv/node-aux.lua @@ -32,8 +32,6 @@ local getnext = nuts.getnext local getid = nuts.getid local getsubtype = nuts.getsubtype local getlist = nuts.getlist -local getfont = nuts.getfont -local getchar = nuts.getchar local getattr = nuts.getattr local getboth = nuts.getboth local getcomponents = nuts.getcomponents @@ -51,8 +49,10 @@ local setprev = nuts.setprev local setcomponents = nuts.setcomponents local setattrlist = nuts.setattrlist -local traverse_nodes = nuts.traverse -local traverse_id = nuts.traverse_id +----- traverse_nodes = nuts.traverse +----- traverse_id = nuts.traverse_id +local nextnode = nuts.traversers.node +local nextglyph = nuts.traversers.glyph local flush_node = nuts.flush local flush_list = nuts.flush_list local hpack_nodes = nuts.hpack @@ -154,9 +154,8 @@ function nodes.repackhlist(list,...) end local function set_attributes(head,attr,value) - for n in traverse_nodes(head) do + for n, id in nextnode, head do setattr(n,attr,value) - local id = getid(n) if id == hlist_node or id == vlist_node then set_attributes(getlist(n),attr,value) end @@ -164,11 +163,10 @@ local function set_attributes(head,attr,value) end local function set_unset_attributes(head,attr,value) - for n in traverse_nodes(head) do + for n, id in nextnode, head do if not getattr(n,attr) then setattr(n,attr,value) end - local id = getid(n) if id == hlist_code or id == vlist_code then set_unset_attributes(getlist(n),attr,value) end @@ -176,9 +174,8 @@ local function set_unset_attributes(head,attr,value) end local function unset_attributes(head,attr) - for n in traverse_nodes(head) do + for n, id in nextnode, head do setattr(n,attr,unsetvalue) - local id = getid(n) if id == hlist_code or id == vlist_code then unset_attributes(getlist(n),attr) end @@ -197,98 +194,11 @@ nuts.setattributes = set_attributes nodes.setattributes nuts.setunsetattributes = set_unset_attributes nodes.setunsetattributes = vianuts(set_unset_attributes) nuts.unsetattributes = unset_attributes nodes.unsetattributes = vianuts(unset_attributes) --- history: --- --- local function glyph_width(a) --- local ch = chardata[getfont(a)][getchar(a)] --- return (ch and ch.width) or 0 --- end --- --- local function glyph_total(a) --- local ch = chardata[getfont(a)][getchar(a)] --- return (ch and (ch.height+ch.depth)) or 0 --- end --- --- local function non_discardable(a) -- inline --- return getid(id) < math_node -- brrrr --- end --- --- local function calculate_badness(t,s) --- if t == 0 then --- return 0 --- elseif s <= 0 then --- return INF_BAD --- else --- local r --- if t <= 7230584 then --- r = t * 297 / s --- elseif s >= 1663497 then --- r = t / floor(s / 297) --- else --- r = t --- end --- r = floor(r) --- if r > 1290 then --- return INF_BAD --- else --- return floor((r * r * r + 0x20000) / 0x40000) -- 0400000 / 01000000 --- end --- end --- end --- --- left-overs --- --- local function round_xn_over_d(x, n, d) --- local positive -- was x >= 0 --- if x >= 0 then --- positive = true --- else --- x = -x --- positive = false --- end --- local t = floor(x % 0x8000) * n -- 0100000 --- local f = floor(t / 0x8000) -- 0100000 --- local u = floor(x / 0x8000) * n + f -- 0100000 --- local v = floor(u % d) * 0x8000 + f -- 0100000 --- if floor(u / d) >= 0x8000 then -- 0100000 --- report_parbuilders('arith_error') --- else --- u = 0x8000 * floor(u / d) + floor(v / d) -- 0100000 --- end --- v = floor(v % d) --- if 2*v >= d then --- u = u + 1 --- end --- if positive then --- return u --- else --- return -u --- end --- end --- --- local function firstline(n) --- while n do --- local id = getid(n) --- if id == hlist_code then --- if getsubtype(n) == line_code then --- return n --- else --- return firstline(getlist(n)) --- end --- elseif id == vlist_code then --- return firstline(getlist(n)) --- end --- n = getnext(n) --- end --- end --- --- nodes.firstline = firstline - function nuts.firstcharacter(n,untagged) -- tagged == subtype > 255 if untagged then return first_glyph(n) else - for g in traverse_id(glyph_code,n) do + for g in nextglyph ,n do return g end end @@ -297,8 +207,8 @@ end local function firstcharinbox(n) local l = getlist(getbox(n)) if l then - for g in traverse_id(glyph_code,l) do - return getchar(g) + for g, c in nextglyph, l do + return c end end return 0 @@ -431,10 +341,9 @@ nodes.link = function(list,currentfont,currentattr,head,tail) end local function locate(start,wantedid,wantedsubtype) - for n in traverse_nodes(start) do - local id = getid(n) + for n, id, subtype in nextnode, start do if id == wantedid then - if not wantedsubtype or getsubtype(n) == wantedsubtype then + if not wantedsubtype or subtype == wantedsubtype then return n end elseif id == hlist_code or id == vlist_code then @@ -490,87 +399,6 @@ end -- end -- end --- these component helpers might move to another module - --- nodemode helper: here we also flatten components, no check for disc here - -function nuts.set_components(target,start,stop) - local head = getcomponents(target) - if head then - flush_list(head) - head = nil - end - if start then - setprev(start) - else - return nil - end - if stop then - setnext(stop) - end - local tail = nil - while start do - local c = getcomponents(start) - local n = getnext(start) - if c then - if head then - setlink(tail,c) - else - head = c - end - tail = find_tail(c) - setcomponents(start) - flush_node(start) - else - if head then - setlink(tail,start) - else - head = start - end - tail = start - end - start = n - end - setcomponents(target,head) - -- maybe also upgrade the subtype but we don't use it anyway - return head -end - -function nuts.get_components(target) - return getcomponents(target) -end - -nuts.get_components = getcomponents - -function nuts.take_components(target) - local c = getcomponents(target) - setcomponents(target) - -- maybe also upgrade the subtype but we don't use it anyway - return c -end - --- nodemode helper: we assume a glyph and a flat components list (basemode can --- have nested components) - -function nuts.count_components(n,marks) - local components = getcomponents(n) - if components then - if marks then - local i = 0 - for g in traverse_id(glyph_code,components) do - if not marks[getchar(g)] then - i = i + 1 - end - end - return i - else - return count(glyph_code,components) - end - else - return 0 - end -end - -- nodemode helper: the next and prev pointers are untouched function nuts.copy_no_components(g,copyinjection) @@ -596,7 +424,7 @@ end function nuts.copy_only_glyphs(current) local head = nil local previous = nil - for n in traverse_id(glyph_code,current) do + for n in nextglyph, current do n = copy_node(n) if head then setlink(previous,n) |