diff options
Diffstat (limited to 'tex/context/base/node-shp.lua')
| -rw-r--r-- | tex/context/base/node-shp.lua | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/tex/context/base/node-shp.lua b/tex/context/base/node-shp.lua index 42b622878..a4fb5689d 100644 --- a/tex/context/base/node-shp.lua +++ b/tex/context/base/node-shp.lua @@ -73,14 +73,27 @@ local function cleanup_redundant(head) -- better name is: flatten_page if getsubtype(start) == fulldisc_code then local replace = getfield(start,"replace") if replace then - setfield(start,"replace",nil) - head, start = remove_node(head,start,true) - local tail = find_tail(replace) local prev = getprev(start) - setfield(tail,"next",start) - setfield(start,"prev",tail) - setfield(prev,"next",replace) - setfield(replace,"prev",prev) + local next = getnext(start) + local tail = find_tail(replace) + 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 + setfield(tail,"next",next) + setfield(next,"prev",tail) + end + if prev then + setfield(prev,"next",replace) + setfield(replace,"prev",prev) + else + setfield(replace,"prev",nil) -- to be sure + end + start = next elseif wipedisc then -- pre and post can have values head, start = remove_node(head,start,true) |