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#compdef lp lpr lpq lprm

local expl ret=1 printer list disp strs shown

if (( ! $+_lp_cache )); then
  local file entry names i

   file=( /etc/(printcap|printers.conf)(N) )

  _lp_cache=()
  _lp_alias_cache=()

  if (( $#file )); then
    while read entry; do
      if [[ "$entry" = [^[:blank:]\#\*_]*:* ]]; then
        names=( "${(s:|:)entry%%:*}" )
        if [[ "$entry" = *:description=* ]]; then
          disp="${${entry##*:description=}%%:*}"
        elif [[ $#names -gt 1 && "$names[-1]" = *\ * ]] ;then
          disp="$names[-1]"
        else
          disp=''
        fi
        if [[ -n "$disp" ]]; then
          _lp_cache=( "$_lp_cache[@]" "${names[1]}:${disp}" )
  	_lp_alias_cache=( "$_lp_alias_cache[@]" "${(@)^names[2,-1]:#*\ *}:${disp}" )
        else
          _lp_cache=( "$_lp_cache[@]" "${names[1]}" )
  	_lp_alias_cache=( "$_lp_alias_cache[@]" "${(@)names[2,-1]:#*\ *}" )
        fi
      fi
    done < $file[1]
  fi
  (( $#_lp_cache )) || _lp_cache=( 'lp0:Guessed default printer' )
  (( $#_lp_alias_cache )) || unset _lp_alias_cache
fi

if compset -P -P || [[ "$words[CURRENT-1]" = -P ]]; then
  if _wanted printers; then
    if zstyle -T ":completion:${curcontext}:printers" verbose; then
      zformat -a list ' -- ' "$_lp_cache[@]"
      disp=(-ld list)
    else
      disp=()
    fi
    _all_labels printers expl printer \
        compadd "$disp[@]" - "${(@)_lp_cache%%:*}" && return 0

    (( $+_lp_alias_cache )) || return 1

    if zstyle -T ":completion:${curcontext}:printers" verbose; then
      zformat -a list ' -- ' "$_lp_alias_cache[@]"
      disp=(-ld list)
    else
      disp=()
    fi
    compadd "$expl[@]" "$disp[@]" - "${(@)_lp_alias_cache%%:*}"
  else
    return 1
  fi
else
  if [[ "${words[1]:t}" = (lpq|lprm) ]]; then
    if [[ "$words" = *-P* ]]; then
      printer=(-P "${${words##*-P( |)}%% *}")
    else
      printer=()
    fi
    list=( ${(M)"${(f@)$(_call jobs lpq $printer 2> /dev/null)}":#[0-9]*} )

    if (( $#list )); then
      _tags users jobs

      while _tags; do
        if _requested users; then
          strs=( "${(@)${(@)list##[^ 	]##[ 	]##[^ 	]##[ 	]##}%%[ 	]*}" )
          if [[ -z "$shown" ]] &&
             zstyle -T ":completion:${curcontext}:users" verbose; then
            disp=(-ld list)
  	  shown=yes
          else
  	  disp=()
          fi
	  _all_labels users expl user compadd "$disp[@]" - "$strs[@]" ||
              _users && ret=0
        fi
        if _requested jobs; then
          strs=( "${(@)${(@)list##[^ 	]##[ 	]##[^ 	]##[ 	]##[^ 	]##[ 	]##}%%[ 	]*}" )
          if [[ -z "$shown" ]] &&
             zstyle -T ":completion:${curcontext}:jobs" verbose; then
            disp=(-ld list)
  	  shown=yes
          else
  	  disp=()
          fi
          _all_labels jobs expl job compadd "$disp[@]" - "$strs[@]" && ret=0
        fi
        (( ret )) || return 0
      done
    else
      _message 'no print jobs'
    fi
    return 1
  else
    _ps
  fi
fi