def _nt_received
start_index = index
if node_cache[:received].has_key?(index)
cached = node_cache[:received][index]
if cached
cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0, s0 = index, []
r1 = _nt_name_val_list
s0 << r1
if r1
if has_terminal?(";", false, index)
r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure(";")
r2 = nil
end
s0 << r2
if r2
r3 = _nt_date_time
s0 << r3
if r3
r4 = _nt_CRLF
s0 << r4
end
end
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(Received0)
else
@index = i0
r0 = nil
end
node_cache[:received][start_index] = r0
r0
end