# File lib/mail/parsers/rfc2822.rb, line 2634 def _nt_mailbox start_index = index if node_cache[:mailbox].has_key?(index) cached = node_cache[:mailbox][index] @index = cached.interval.end if cached return cached end i0 = index r1 = _nt_name_addr if r1 r0 = r1 else r2 = _nt_addr_spec if r2 r0 = r2 else @index = i0 r0 = nil end end node_cache[:mailbox][start_index] = r0 r0 end