#compdef elm

local curcontext="$curcontext" state line expl suf

_arguments -C -s \
  '::recipient:->userhost' \
  '-a[use the arrow pointer regardless]' \
  '-A+[attach file]:file attachment:_files' \
  '-c[check the given aliases only]:*:alias' \
  '-d+[set debug level]:debug level' \
  '-f+[specify mailbox to load]:mailbox: _mailboxes' \
  '-h[display help]' \
  '-i+[specify file to include in message]:include file:_files' \
  '-m[turn off menu, using more of the screen]' \
  '-s+[specify a subject]:subject:' \
  "-t[don't use termcap/terminfo ti/te entries]" \
  '-V[enable sendmail voyeur mode]' \
  '-v[display elm version]' \
  '-w[write .elm/elmrc]' \
  '-z[start only if new messages]' && return 0

if [[ "$state" = userhost ]]; then
  if compset -P '*@'; then
    _description hosts expl 'remote host name'
    _hosts "$expl[@]" && return 0
  else
    compset -S '@*' || suf='@'
    _description users expl 'login name'
    _users "$expl[@]" -q -S "$suf" && return 0
  fi
fi

return 1