# File lib/mail/parsers/content_transfer_encoding.rb, line 68 def _nt_encoding start_index = index if node_cache[:encoding].has_key?(index) cached = node_cache[:encoding][index] @index = cached.interval.end if cached return cached end i0 = index r1 = _nt_known_tokens if r1 r0 = r1 else r2 = _nt_ietf_token if r2 r0 = r2 else r3 = _nt_x_token r3.extend(Encoding0) if r3 r0 = r3 else @index = i0 r0 = nil end end end node_cache[:encoding][start_index] = r0 r0 end