# File lib/mail/parsers/rfc2822.rb, line 1688 def _nt_word start_index = index if node_cache[:word].has_key?(index) cached = node_cache[:word][index] if cached cached = SyntaxNode.new(input, index...(index + 1)) if cached == true @index = cached.interval.end end return cached end i0 = index r1 = _nt_atom if r1 r0 = r1 else r2 = _nt_quoted_string if r2 r0 = r2 else @index = i0 r0 = nil end end node_cache[:word][start_index] = r0 r0 end