zsh/Completion/X/Command/_xset

#compdef xset

local word=$'[^\0]#\0'
local nul=$'\0'

local guard='-_xset_guard ${match[1]%?}'

_xset_guard () {
  local opt="$1" o
  (( no[$opt]-- ))
  for o in ${=eo[$opt]}; do
    no[$o]=0
  done 
  :
}

_xset_compopts () {
  local expl
  local opt tmp

  tmp=()
  for opt in ${(k)no[(R)*~0]}
  do
    if (( $+desc[$opt] )); then
      tmp=("$tmp[@]" "$opt:$desc[$opt]")
    else
      tmp=("$tmp[@]" "$opt")
    fi
  done
  _describe -o options tmp -- ||
  _describe -o options allopts --
}

_xset_compfpadd () {
  _files "$expl[@]" -/
}

_xset_compfpdel () {
  compadd "$expl[@]" - ${(s:,:)${"$(xset q)"##*
Font Path:
 #}%%
*}
}

_regex_arguments _xset_parse \
  "/$word/" \
  \( "/-d(isplay|)$nul/" "$guard" "/$word/" ':option-display:display:_x_display' \
  \| "/-c$nul/" "$guard" \
  \| "/c$nul/" "$guard" \
    \( "/(on|off)$nul/" ':option-c-bool:click:(on off)' \
    \| "/[0-9]##$nul/" ':option-c-volume:volume:' \
    \| \) \
  \| "/-b$nul/" "$guard" \
  \| "/b$nul/" "$guard" \
    \( "/(on|off)$nul/" ':option-b-bool:bell:(on off)' \
    \| "/[0-9]##$nul/" ':option-b-volume:bell volume:' \
      \( "/[0-9]##$nul/" ':option-b-pitch:bell pitch:' \
	\( "/[0-9]##$nul/" ':option-b-duration:bell duration:' \
	\| \) \
      \| \) \
    \| \) \
  \| "/bc$nul/" "$guard" \
  \| "/-bc$nul/" "$guard" \
  \| "/fp$nul/" "$guard" "/$word/" ':option-fp:font path:(default rehash)' \
  \| "/(fp[+=]|[+]fp)$nul/" "$guard" "/$word/" ':option-fp-add:font path:{compset -P "*,"; _xset_compfpadd}' \
  \| "/(fp-|-fp)$nul/" "$guard" "/$word/" ':option-fp-del:font path:{compset -P "*,"; _xset_compfpdel}' \
  \| "/-led$nul/" "$guard" \
    \( "/[0-9]##$nul/" ':option-led-number:led number:' \
    \| \) \
  \| "/led$nul/" "$guard" \
    \( "/(on|off)$nul/" ':option-led-bool:led:(on off)' \
    \| "/[0-9]##$nul/" ':option-led-number:led number:' \
    \| \) \
  \| "/m(ouse|)$nul/" "$guard" \
    \( "/default$nul/" ':option-mouse-default:mouse parameter:(default)' \
    \| "/[0-9]##(/[0-9]##|)$nul/" ':option-mouse-mult-div:accel_mult/accel_div:' \
      \( "/[0-9]##$nul/" ':option-mouse-threshold:threshold:' \
      \| \) \
    \| \) \
  \| "/[-+]dpms$nul/" "$guard" \
  \| "/dpms$nul/" "$guard" \
    \( "/[0-9]##$nul/" ':option-dpms-standby:standby timeout:' \
      \( "/[0-9]##$nul/" ':option-dpms-suspend:suspend timeout:' \
	\( "/[0-9]##$nul/" ':option-dpms-off:off timeout:' \
	\| \) \
      \| \) \
    \| "/force$nul/" ':option-dpms-force:force DPMS state:(force)' \
       "/(on|standby|suspend|off)$nul/" ':option-dpms-state:DPMS state:(on standby suspend off)' \
    \) \
  \| "/s$nul/" "$guard" \
    \( "/(blank|noblank|expose|noexpose|default|on|activate|reset)$nul/" \
       ':option-s:screen saver:(blank noblank expose noexpose default on activate reset off)' \
    \| "/off$nul/" \( "/off$nul/" ':option-s-off-period:period off:(off)' \| \) \
    \| "/[0-9]##$nul/" ':option-s-timeout:length:' \
      \( "/[0-9]##$nul/" ':option-s-period:period:' \
      \| \) \
    \| \) \
  \| "/-r$nul/" "$guard" \
    \( "/[0-9]##$nul/" ':option-r-keycode:keycode:' \
    \| \) \
  \| "/r$nul/" "$guard" \
    \( "/(on|off)$nul/" ':option-r-autorepeat:autorepeat:(on off)' \
    \| "/[0-9]##$nul/" ':option-r-keycode:keycode:' \
    \| \) \
  \| "/p$nul/" "$guard" \
    "/[0-9]##$nul/" ':option-p-pixel:pixel:' \
    "/$word/" ':option-p-color:color:_x_color' \
  \| "/(-|)k$nul/" "$guard" \
  \| "/(-|)q$nul/" "$guard" \
  \| "/[]/" ':options:options:_xset_compopts' \
  \) \#

_xset () {
  local expl allopts
  typeset -A desc no eo

  desc=(
    b 'specify bell parameters'
    -b 'disable bell'
    bc 'enable bug compatibility'
    -bc 'disable bug compatibility'
    c 'control key click'
    -c 'disable key click'
    -dpms 'disable DPMS'
    +dpms 'enable DPMS'
    dpms 'specify DPMS parameter'
    fp\= 'set font path'
    fp 'control font path'
    -fp 'remove font path elements'
    fp- 'remove font path elements'
    +fp 'prepend font path elements'
    fp+ 'append font path elements'
    led 'control keyboard LEDs'
    -led 'turn off all LEDs'
    m 'specify mouse parameters'
    mouse 'specify mouse parameters'
    p 'specify pixel color values'
    r 'enable autorepeat'
    -r 'disable autorepeat'
    s 'specify screen saver parameters'
    q 'query current information'
    k 'enable lock'
    -k 'disable lock'
    -display 'display'
  )

  no=(
    -display 1 -d 0
    -c 1 c 1
    -b 1 b 1
    -bc 1 bc 1
    fp 1 fp= 1 +fp 1 fp+ 1 -fp 1 fp- 1
    -led 1 led 1
    mouse 1 m 0
    +dpms 1 -dpms 1 dpms 1
    s 1
    -r 1 r 1
    p 1
    -k 1 k 1
    -q 0 q 1
  )

  allopts=()
  for opt in ${(k)no}
  do
    if (( $+desc[$opt] )); then
      allopts=("$allopts[@]" "$opt:$desc[$opt]")
    else
      allopts=("$allopts[@]" "$opt")
    fi
  done

  eo=(
    -display	'-display -d'
    -d		'-display -d'
    -c		'-c c'
    c		'-c c'
    -b		'-b b'
    b		'-b b'
    -bc		'-bc bc'
    bc		'-bc bc'
    fp+		'fp fp='
    fp-		'fp fp='
    +fp		'fp fp='
    -fp		'fp fp='
    m		'm mouse'
    mouse	'm mouse'
    -dpms	'+dpms -dpms dpms'
    +dpms	'+dpms -dpms dpms'
    dpms	'+dpms -dpms dpms'
    -k		'-k k'
    k		'-k k'
  )

  _xset_parse
}

_xset "$@"