def _nt_item_value
start_index = index
if node_cache[:item_value].has_key?(index)
cached = node_cache[:item_value][index]
if cached
cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0 = index
s1, i1 = [], index
loop do
r2 = _nt_angle_addr
if r2
s1 << r2
else
break
end
end
if s1.empty?
@index = i1
r1 = nil
else
r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
end
if r1
r0 = r1
else
r3 = _nt_addr_spec
if r3
r0 = r3
else
r4 = _nt_atom
if r4
r0 = r4
else
r5 = _nt_domain
if r5
r0 = r5
else
r6 = _nt_msg_id
if r6
r0 = r6
else
@index = i0
r0 = nil
end
end
end
end
end
node_cache[:item_value][start_index] = r0
r0
end