diff options
Diffstat (limited to 'luaotfload-basics-nod.lua')
| -rw-r--r-- | luaotfload-basics-nod.lua | 79 |
1 files changed, 71 insertions, 8 deletions
diff --git a/luaotfload-basics-nod.lua b/luaotfload-basics-nod.lua index 5ab9df7..50a1e86 100644 --- a/luaotfload-basics-nod.lua +++ b/luaotfload-basics-nod.lua @@ -88,17 +88,80 @@ function nodes.delete(head,current) return nodes.remove(head,current,true) end -nodes.before = node.insert_before -nodes.after = node.insert_after - function nodes.pool.kern(k) local n = new_node("kern",1) n.kern = k return n end -function nodes.endofmath(n) - for n in traverse_id(math_code,n.next) do - return n - end -end +-- experimental + +local getfield = node.getfield or function(n,tag) return n[tag] end +local setfield = node.setfield or function(n,tag,value) n[tag] = value end + +nodes.getfield = getfield +nodes.setfield = setfield + +nodes.getattr = getfield +nodes.setattr = setfield + +if node.getid then nodes.getid = node.getid else function nodes.getid (n) return getfield(n,"id") end end +if node.getsubtype then nodes.getsubtype = node.getsubtype else function nodes.getsubtype(n) return getfield(n,"subtype") end end +if node.getnext then nodes.getnext = node.getnext else function nodes.getnext (n) return getfield(n,"next") end end +if node.getprev then nodes.getprev = node.getprev else function nodes.getprev (n) return getfield(n,"prev") end end +if node.getchar then nodes.getchar = node.getchar else function nodes.getchar (n) return getfield(n,"char") end end +if node.getfont then nodes.getfont = node.getfont else function nodes.getfont (n) return getfield(n,"font") end end +if node.getlist then nodes.getlist = node.getlist else function nodes.getlist (n) return getfield(n,"list") end end + +function nodes.tonut (n) return n end +function nodes.tonode(n) return n end + +-- being lazy ... just copy a bunch ... not all needed in generic but we assume +-- nodes to be kind of private anyway + +nodes.tostring = node.tostring or tostring +nodes.copy = node.copy +nodes.copy_list = node.copy_list +nodes.delete = node.delete +nodes.dimensions = node.dimensions +nodes.end_of_math = node.end_of_math +nodes.flush_list = node.flush_list +nodes.flush_node = node.flush_node +nodes.free = node.free +nodes.insert_after = node.insert_after +nodes.insert_before = node.insert_before +nodes.hpack = node.hpack +nodes.new = node.new +nodes.tail = node.tail +nodes.traverse = node.traverse +nodes.traverse_id = node.traverse_id +nodes.slide = node.slide +nodes.vpack = node.vpack + +nodes.first_glyph = node.first_glyph +nodes.first_character = node.first_character +nodes.has_glyph = node.has_glyph or node.first_glyph + +nodes.current_attr = node.current_attr +nodes.do_ligature_n = node.do_ligature_n +nodes.has_field = node.has_field +nodes.last_node = node.last_node +nodes.usedlist = node.usedlist +nodes.protrusion_skippable = node.protrusion_skippable +nodes.write = node.write + +nodes.has_attribute = node.has_attribute +nodes.set_attribute = node.set_attribute +nodes.unset_attribute = node.unset_attribute + +nodes.protect_glyphs = node.protect_glyphs +nodes.unprotect_glyphs = node.unprotect_glyphs +nodes.kerning = node.kerning +nodes.ligaturing = node.ligaturing +nodes.mlist_to_hlist = node.mlist_to_hlist + +-- in generic code, at least for some time, we stay nodes, while in context +-- we can go nuts (e.g. experimental); this split permits us us keep code +-- used elsewhere stable but at the same time play around in context + +nodes.nuts = nodes |