diff options
Diffstat (limited to 'tex/context/base/node-aux.lua')
| -rw-r--r-- | tex/context/base/node-aux.lua | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/tex/context/base/node-aux.lua b/tex/context/base/node-aux.lua index 9ed71fd72..5ddf31e25 100644 --- a/tex/context/base/node-aux.lua +++ b/tex/context/base/node-aux.lua @@ -8,9 +8,11 @@ if not modules then modules = { } end modules ['node-aux'] = { local gsub, format = string.gsub, string.format -local free_node = node.free -local hpack_nodes = node.hpack -local node_fields = node.fields +local free_node, hpack_nodes, node_fields, traverse_nodes = node.free, node.hpack, node.fields, node.traverse +local has_attribute, set_attribute, unset_attribute, has_attribute = node.has_attribute, node.set_attribute, node.unset_attribute,node.has_attribute + +local hlist = node.id("hlist") +local vlist = node.id("vlist") function nodes.repack_hlist(list,...) local temp, b = hpack_nodes(list,...) @@ -143,3 +145,42 @@ end -- end -- end + +local function set_attributes(head,attr,value) + for n in traverse_nodes(head) do + set_attribute(n,attr,value) + local id = n.id + if id == hlist or id == vlist then + set_attributes(n.list,attr,value) + end + end +end + +local function set_unset_attributes(head,attr,value) + for n in traverse_nodes(head) do + if not has_attribute(n,attr) then + set_attribute(n,attr,value) + end + local id = n.id + if id == hlist or id == vlist then + set_unset_attributes(n.list,attr,value) + end + end +end + +local function unset_attributes(head,attr) + for n in traverse_nodes(head) do + unset_attribute(n,attr) + local id = n.id + if id == hlist or id == vlist then + unset_attributes(n.list,attr) + end + end +end + +nodes.set_attribute = set_attribute +nodes.unset_attribute = unset_attribute +nodes.has_attribute = has_attribute +nodes.set_attributes = set_attributes +nodes.set_unset_attributes = set_unset_attributes +nodes.unset_attributes = unset_attributes |