def _nt_obs_addr_list
start_index = index
if node_cache[:obs_addr_list].has_key?(index)
cached = node_cache[:obs_addr_list][index]
@index = cached.interval.end if cached
return cached
end
i0, s0 = index, []
s1, i1 = [], index
loop do
i2, s2 = index, []
r4 = _nt_address
if r4
r3 = r4
else
r3 = instantiate_node(SyntaxNode,input, index...index)
end
s2 << r3
if r3
r6 = _nt_CFWS
if r6
r5 = r6
else
r5 = instantiate_node(SyntaxNode,input, index...index)
end
s2 << r5
if r5
if has_terminal?(",", false, index)
r7 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure(",")
r7 = nil
end
s2 << r7
if r7
r9 = _nt_CFWS
if r9
r8 = r9
else
r8 = instantiate_node(SyntaxNode,input, index...index)
end
s2 << r8
end
end
end
if s2.last
r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
r2.extend(ObsAddrList0)
else
@index = i2
r2 = nil
end
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
s0 << r1
if r1
r11 = _nt_address
if r11
r10 = r11
else
r10 = instantiate_node(SyntaxNode,input, index...index)
end
s0 << r10
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(ObsAddrList1)
else
@index = i0
r0 = nil
end
node_cache[:obs_addr_list][start_index] = r0
r0
end