diff options
Diffstat (limited to 'tex/context/base/mkiv/node-shp.lua')
| -rw-r--r-- | tex/context/base/mkiv/node-shp.lua | 108 |
1 files changed, 55 insertions, 53 deletions
diff --git a/tex/context/base/mkiv/node-shp.lua b/tex/context/base/mkiv/node-shp.lua index 306e38f6a..7af789b1b 100644 --- a/tex/context/base/mkiv/node-shp.lua +++ b/tex/context/base/mkiv/node-shp.lua @@ -66,59 +66,61 @@ local removables = { -- (like marks) is not saving much and removing empty boxes is even -- dangerous because we can rely on dimensions (e.g. in references). -local wipedisc = false -- we can use them in the export ... can be option - -local function cleanup_redundant(head) -- better name is: flatten_page - local start = head - while start do - local id = getid(start) - if id == disc_code then - if getsubtype(start) == discretionarydisc_code then - local _, _, replace, _, _ tail = getdisc(start,true) - if replace then - local prev, next = getboth(start) - setfield(start,"replace",nil) - if start == head then - remove_node(head,start,true) - head = replace - else - remove_node(head,start,true) - end - if next then - setlink(tail,next) - end - if prev then - setlink(prev,replace) - else - setprev(replace) -- to be sure - end - start = next - elseif wipedisc then - -- pre and post can have values - head, start = remove_node(head,start,true) - else - start = getnext(start) - end - else - start = getnext(start) - end - elseif id == hlist_code or id == vlist_code then - local sl = getlist(start) - if sl then - local rl = cleanup_redundant(sl) - if rl ~= sl then - setlist(start,rl) - end - end - start = getnext(start) - else - start = getnext(start) - end - end - return head -end - -handlers.cleanuppage = cleanup_redundant -- nut +-- local wipedisc = false -- we can use them in the export ... can be option +-- +-- local function cleanup_redundant(head) -- better name is: flatten_page +-- local start = head +-- while start do +-- local id = getid(start) +-- if id == disc_code then +-- if getsubtype(start) == discretionarydisc_code then +-- local _, _, replace, _, _ tail = getdisc(start,true) +-- if replace then +-- local prev, next = getboth(start) +-- setfield(start,"replace",nil) +-- if start == head then +-- remove_node(head,start,true) +-- head = replace +-- else +-- remove_node(head,start,true) +-- end +-- if next then +-- setlink(tail,next) +-- end +-- if prev then +-- setlink(prev,replace) +-- else +-- setprev(replace) -- to be sure +-- end +-- start = next +-- elseif wipedisc then +-- -- pre and post can have values +-- head, start = remove_node(head,start,true) +-- else +-- start = getnext(start) +-- end +-- else +-- start = getnext(start) +-- end +-- elseif id == hlist_code or id == vlist_code then +-- local sl = getlist(start) +-- if sl then +-- local rl = cleanup_redundant(sl) +-- if rl ~= sl then +-- setlist(start,rl) +-- end +-- end +-- start = getnext(start) +-- else +-- start = getnext(start) +-- end +-- end +-- return head +-- end +-- +-- handlers.cleanuppage = cleanup_redundant -- nut + +handlers.cleanuppage = nuts.flatten_discretionaries local function cleanup_flushed(head) -- rough local start = head |