| Copyright | Devin Mullins <devin.mullins@gmail.com> |
|---|---|
| License | BSD-style (see LICENSE) |
| Maintainer | Devin Mullins <devin.mullins@gmail.com> |
| Stability | unstable |
| Portability | unportable |
| Safe Haskell | None |
| Language | Haskell2010 |
XMonad.Config.Prime
Description
This is a draft of a brand new config syntax for xmonad. It aims to be:
- easier to copy/paste snippets from the docs
- easier to get the gist for what's going on, for you imperative programmers
It's brand new, so it's pretty much guaranteed to break or change syntax. But what's the worst that could happen? Xmonad crashes and logs you out? It probably won't do that. Give it a try.
Synopsis
- xmonad :: (Default a, Read (l Window), LayoutClass l Window) => (a -> IO (XConfig l)) -> IO ()
- nothing :: Prime l l
- normalBorderColor :: Settable String (XConfig l)
- focusedBorderColor :: Settable String (XConfig l)
- terminal :: Settable String (XConfig l)
- modMask :: Settable KeyMask (XConfig l)
- borderWidth :: Settable Dimension (XConfig l)
- focusFollowsMouse :: Settable Bool (XConfig l)
- clickJustFocuses :: Settable Bool (XConfig l)
- class SettableClass s x y | s -> x y where
- class UpdateableClass s x y | s -> x y where
- manageHook :: Summable ManageHook ManageHook (XConfig l)
- handleEventHook :: Summable (Event -> X All) (Event -> X All) (XConfig l)
- workspaces :: Summable [String] [String] (XConfig l)
- logHook :: Summable (X ()) (X ()) (XConfig l)
- startupHook :: Summable (X ()) (X ()) (XConfig l)
- clientMask :: Summable EventMask EventMask (XConfig l)
- rootMask :: Summable EventMask EventMask (XConfig l)
- class SummableClass s y | s -> y where
- keys :: Keys (XConfig l)
- mouseBindings :: MouseBindings (XConfig l)
- class RemovableClass r y | r -> y where
- withWorkspaces :: Arr WorkspaceConfig WorkspaceConfig -> Prime l l
- wsNames :: Settable [String] WorkspaceConfig
- wsKeys :: Summable [String] [String] WorkspaceConfig
- wsActions :: Summable [(String, String -> X ())] [(String, String -> X ())] WorkspaceConfig
- wsSetName :: Int -> String -> Arr WorkspaceConfig WorkspaceConfig
- withScreens :: Arr ScreenConfig ScreenConfig -> Prime l l
- sKeys :: Summable [String] [String] ScreenConfig
- sActions :: Summable [(String, ScreenId -> X ())] [(String, ScreenId -> X ())] ScreenConfig
- onScreens :: Eq s => (i -> StackSet i l a s sd -> StackSet i l a s sd) -> s -> StackSet i l a s sd -> StackSet i l a s sd
- addLayout :: (LayoutClass l Window, LayoutClass r Window) => r Window -> Prime l (Choose l r)
- resetLayout :: LayoutClass r Window => r Window -> Prime l r
- modifyLayout :: LayoutClass r Window => (l Window -> r Window) -> Prime l r
- startWith :: XConfig l' -> Prime l l'
- apply :: (XConfig l -> XConfig l') -> Prime l l'
- applyIO :: (XConfig l -> IO (XConfig l')) -> Prime l l'
- class Typeable (a :: k)
- getModifierMapping :: Display -> IO [(Modifier, [KeyCode])]
- getCommand :: Display -> Window -> IO [String]
- getErrorEvent :: XErrorEventPtr -> IO ErrorEvent
- setErrorHandler :: XErrorHandler -> IO ()
- setWMHints :: Display -> Window -> WMHints -> IO Status
- getWMHints :: Display -> Window -> IO WMHints
- allHintsBitmask :: CLong
- urgencyHintBit :: Int
- windowGroupHintBit :: Int
- iconMaskHintBit :: Int
- iconPositionHintBit :: Int
- iconWindowHintBit :: Int
- iconPixmapHintBit :: Int
- stateHintBit :: Int
- inputHintBit :: Int
- iconicState :: Int
- normalState :: Int
- withdrawnState :: Int
- setClassHint :: Display -> Window -> ClassHint -> IO ()
- getClassHint :: Display -> Window -> IO ClassHint
- getWMNormalHints :: Display -> Window -> IO SizeHints
- pWinGravityBit :: Int
- pBaseSizeBit :: Int
- pAspectBit :: Int
- pResizeIncBit :: Int
- pMaxSizeBit :: Int
- pMinSizeBit :: Int
- unmapWindow :: Display -> Window -> IO ()
- deleteProperty :: Display -> Window -> Atom -> IO ()
- propModeAppend :: CInt
- propModePrepend :: CInt
- propModeReplace :: CInt
- changeProperty32 :: Display -> Window -> Atom -> Atom -> CInt -> [CLong] -> IO ()
- changeProperty16 :: Display -> Window -> Atom -> Atom -> CInt -> [CShort] -> IO ()
- changeProperty8 :: Display -> Window -> Atom -> Atom -> CInt -> [CChar] -> IO ()
- getWindowProperty32 :: Display -> Atom -> Window -> IO (Maybe [CLong])
- getWindowProperty16 :: Display -> Atom -> Window -> IO (Maybe [CShort])
- getWindowProperty8 :: Display -> Atom -> Window -> IO (Maybe [CChar])
- rawGetWindowProperty :: Storable a => Int -> Display -> Atom -> Window -> IO (Maybe [a])
- anyPropertyType :: Atom
- refreshKeyboardMapping :: Event -> IO ()
- setKeyEvent :: XEventPtr -> Window -> Window -> Window -> KeyMask -> KeyCode -> Bool -> IO ()
- setConfigureEvent :: XEventPtr -> Window -> Window -> CInt -> CInt -> CInt -> CInt -> CInt -> Window -> Bool -> IO ()
- setClientMessageEvent' :: XEventPtr -> Window -> Atom -> CInt -> [CInt] -> IO ()
- setClientMessageEvent :: XEventPtr -> Window -> Atom -> CInt -> Atom -> Time -> IO ()
- setSelectionNotify :: XEventPtr -> Window -> Atom -> Atom -> Atom -> Time -> IO ()
- setEventType :: XEventPtr -> EventType -> IO ()
- getWMProtocols :: Display -> Window -> IO [Atom]
- getTransientForHint :: Display -> Window -> IO (Maybe Window)
- fetchName :: Display -> Window -> IO (Maybe String)
- wcTextEscapement :: FontSet -> String -> Int32
- wcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO ()
- wcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO ()
- wcTextExtents :: FontSet -> String -> (Rectangle, Rectangle)
- createFontSet :: Display -> String -> IO ([String], String, FontSet)
- wcTextPropertyToTextList :: Display -> TextProperty -> IO [String]
- getTextProperty :: Display -> Window -> Atom -> IO TextProperty
- withServer :: Display -> IO () -> IO ()
- getWindowAttributes :: Display -> Window -> IO WindowAttributes
- waIsViewable :: CInt
- waIsUnviewable :: CInt
- waIsUnmapped :: CInt
- queryTree :: Display -> Window -> IO (Window, Window, [Window])
- configureWindow :: Display -> Window -> CULong -> WindowChanges -> IO ()
- currentTime :: Time
- anyKey :: KeyCode
- anyButton :: Button
- none :: XID
- getEvent :: XEventPtr -> IO Event
- eventName :: Event -> String
- eventTable :: [(EventType, String)]
- xConfigureWindow :: Display -> Window -> CULong -> Ptr WindowChanges -> IO CInt
- killClient :: Display -> Window -> IO CInt
- xQueryTree :: Display -> Window -> Ptr Window -> Ptr Window -> Ptr (Ptr Window) -> Ptr CInt -> IO Status
- xGetWindowAttributes :: Display -> Window -> Ptr WindowAttributes -> IO Status
- changeWindowAttributes :: Display -> Window -> AttributeMask -> Ptr SetWindowAttributes -> IO ()
- xGetTextProperty :: Display -> Window -> Ptr TextProperty -> Atom -> IO Status
- xwcTextPropertyToTextList :: Display -> Ptr TextProperty -> Ptr (Ptr CWString) -> Ptr CInt -> IO CInt
- wcFreeStringList :: Ptr CWString -> IO ()
- xCreateFontSet :: Display -> CString -> Ptr (Ptr CString) -> Ptr CInt -> Ptr CString -> IO (Ptr FontSet)
- freeStringList :: Ptr CString -> IO ()
- freeFontSet :: Display -> FontSet -> IO ()
- xwcTextExtents :: FontSet -> CWString -> CInt -> Ptr Rectangle -> Ptr Rectangle -> IO CInt
- xwcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO ()
- xwcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO ()
- xwcTextEscapement :: FontSet -> CWString -> CInt -> IO Int32
- xFetchName :: Display -> Window -> Ptr CString -> IO Status
- xGetTransientForHint :: Display -> Window -> Ptr Window -> IO Status
- xGetWMProtocols :: Display -> Window -> Ptr (Ptr Atom) -> Ptr CInt -> IO Status
- xSetErrorHandler :: IO ()
- xRefreshKeyboardMapping :: Ptr () -> IO CInt
- xChangeProperty :: Display -> Window -> Atom -> Atom -> CInt -> CInt -> Ptr CUChar -> CInt -> IO Status
- xDeleteProperty :: Display -> Window -> Atom -> IO Status
- xGetWindowProperty :: Display -> Window -> Atom -> CLong -> CLong -> Bool -> Atom -> Ptr Atom -> Ptr CInt -> Ptr CULong -> Ptr CULong -> Ptr (Ptr CUChar) -> IO Status
- xUnmapWindow :: Display -> Window -> IO CInt
- xGetWMNormalHints :: Display -> Window -> Ptr SizeHints -> Ptr CLong -> IO Status
- xGetClassHint :: Display -> Window -> Ptr ClassHint -> IO Status
- xSetClassHint :: Display -> Window -> Ptr ClassHint -> IO ()
- xGetWMHints :: Display -> Window -> IO (Ptr WMHints)
- xAllocWMHints :: IO (Ptr WMHints)
- xSetWMHints :: Display -> Window -> Ptr WMHints -> IO Status
- isCursorKey :: KeySym -> Bool
- isFunctionKey :: KeySym -> Bool
- isKeypadKey :: KeySym -> Bool
- isMiscFunctionKey :: KeySym -> Bool
- isModifierKey :: KeySym -> Bool
- isPFKey :: KeySym -> Bool
- isPrivateKeypadKey :: KeySym -> Bool
- xSetSelectionOwner :: Display -> Atom -> Window -> Time -> IO ()
- xGetSelectionOwner :: Display -> Atom -> IO Window
- xConvertSelection :: Display -> Atom -> Atom -> Atom -> Window -> Time -> IO ()
- mkXErrorHandler :: CXErrorHandler -> IO (FunPtr CXErrorHandler)
- getXErrorHandler :: FunPtr CXErrorHandler -> CXErrorHandler
- _xSetErrorHandler :: FunPtr CXErrorHandler -> IO (FunPtr CXErrorHandler)
- mapRaised :: Display -> Window -> IO CInt
- xGetCommand :: Display -> Window -> Ptr (Ptr CWString) -> Ptr CInt -> IO Status
- xGetModifierMapping :: Display -> IO (Ptr ())
- xFreeModifiermap :: Ptr () -> IO (Ptr CInt)
- data Event
- = AnyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- | ConfigureRequestEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_parent :: !Window
- ev_window :: !Window
- ev_x :: !CInt
- ev_y :: !CInt
- ev_width :: !CInt
- ev_height :: !CInt
- ev_border_width :: !CInt
- ev_above :: !Window
- ev_detail :: !NotifyDetail
- ev_value_mask :: !CULong
- | ConfigureEvent { }
- | MapRequestEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_parent :: !Window
- ev_window :: !Window
- | KeyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_subwindow :: !Window
- ev_time :: !Time
- ev_x :: !CInt
- ev_y :: !CInt
- ev_x_root :: !CInt
- ev_y_root :: !CInt
- ev_state :: !KeyMask
- ev_keycode :: !KeyCode
- ev_same_screen :: !Bool
- | ButtonEvent { }
- | MotionEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_x :: !CInt
- ev_y :: !CInt
- ev_window :: !Window
- | DestroyWindowEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- | UnmapEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- ev_from_configure :: !Bool
- | MapNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- ev_override_redirect :: !Bool
- | MappingNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_request :: !MappingRequest
- ev_first_keycode :: !KeyCode
- ev_count :: !CInt
- | CrossingEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_subwindow :: !Window
- ev_time :: !Time
- ev_x :: !CInt
- ev_y :: !CInt
- ev_x_root :: !CInt
- ev_y_root :: !CInt
- ev_mode :: !NotifyMode
- ev_detail :: !NotifyDetail
- ev_same_screen :: !Bool
- ev_focus :: !Bool
- ev_state :: !Modifier
- | SelectionRequest {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_owner :: !Window
- ev_requestor :: !Window
- ev_selection :: !Atom
- ev_target :: !Atom
- ev_property :: !Atom
- ev_time :: !Time
- | SelectionClear {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_selection :: !Atom
- ev_time :: !Time
- | PropertyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_atom :: !Atom
- ev_time :: !Time
- ev_propstate :: !CInt
- | ExposeEvent { }
- | ClientMessageEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_message_type :: !Atom
- ev_data :: ![CInt]
- | RRScreenChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_timestamp :: !Time
- ev_config_timestamp :: !Time
- ev_size_index :: !SizeID
- ev_subpixel_order :: !SubpixelOrder
- ev_rotation :: !Rotation
- ev_width :: !CInt
- ev_height :: !CInt
- ev_mwidth :: !CInt
- ev_mheight :: !CInt
- | RRNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- | RRCrtcChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_crtc :: !RRCrtc
- ev_rr_mode :: !RRMode
- ev_rotation :: !Rotation
- ev_x :: !CInt
- ev_y :: !CInt
- ev_rr_width :: !CUInt
- ev_rr_height :: !CUInt
- | RROutputChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_output :: !RROutput
- ev_crtc :: !RRCrtc
- ev_rr_mode :: !RRMode
- ev_rotation :: !Rotation
- ev_connection :: !Connection
- ev_subpixel_order :: !SubpixelOrder
- | RROutputPropertyNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_output :: !RROutput
- ev_property :: !Atom
- ev_timestamp :: !Time
- ev_rr_state :: !CInt
- | ScreenSaverNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_ss_state :: !XScreenSaverState
- ev_ss_kind :: !XScreenSaverKind
- ev_forced :: !Bool
- ev_time :: !Time
- = AnyEvent {
- data WindowChanges = WindowChanges {
- wc_x :: CInt
- wc_y :: CInt
- wc_width :: CInt
- wc_height :: CInt
- wc_border_width :: CInt
- wc_sibling :: Window
- wc_stack_mode :: CInt
- data WindowAttributes = WindowAttributes {}
- data TextProperty = TextProperty {}
- newtype FontSet = FontSet (Ptr FontSet)
- data SizeHints = SizeHints {
- sh_min_size :: Maybe (Dimension, Dimension)
- sh_max_size :: Maybe (Dimension, Dimension)
- sh_resize_inc :: Maybe (Dimension, Dimension)
- sh_aspect :: Maybe ((Dimension, Dimension), (Dimension, Dimension))
- sh_base_size :: Maybe (Dimension, Dimension)
- sh_win_gravity :: Maybe BitGravity
- data ClassHint = ClassHint {}
- data WMHints = WMHints {}
- type XErrorEventPtr = Ptr ()
- type CXErrorHandler = Display -> XErrorEventPtr -> IO CInt
- type XErrorHandler = Display -> XErrorEventPtr -> IO ()
- data ErrorEvent = ErrorEvent {
- ev_type :: !CInt
- ev_display :: Display
- ev_serialnum :: !CULong
- ev_error_code :: !CUChar
- ev_request_code :: !CUChar
- ev_minor_code :: !CUChar
- ev_resourceid :: !XID
- restackWindows :: Display -> [Window] -> IO ()
- withdrawWindow :: Display -> Window -> ScreenNumber -> IO ()
- iconifyWindow :: Display -> Window -> ScreenNumber -> IO ()
- translateCoordinates :: Display -> Window -> Window -> Position -> Position -> IO (Bool, Position, Position, Window)
- storeName :: Display -> Window -> String -> IO ()
- createSimpleWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> CInt -> Pixel -> Pixel -> IO Window
- createWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> CInt -> CInt -> WindowClass -> Visual -> AttributeMask -> Ptr SetWindowAttributes -> IO Window
- moveResizeWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> IO ()
- resizeWindow :: Display -> Window -> Dimension -> Dimension -> IO ()
- moveWindow :: Display -> Window -> Position -> Position -> IO ()
- reparentWindow :: Display -> Window -> Window -> Position -> Position -> IO ()
- mapSubwindows :: Display -> Window -> IO ()
- unmapSubwindows :: Display -> Window -> IO ()
- mapWindow :: Display -> Window -> IO ()
- lowerWindow :: Display -> Window -> IO ()
- raiseWindow :: Display -> Window -> IO ()
- circulateSubwindowsDown :: Display -> Window -> IO ()
- circulateSubwindowsUp :: Display -> Window -> IO ()
- circulateSubwindows :: Display -> Window -> CirculationDirection -> IO ()
- destroyWindow :: Display -> Window -> IO ()
- destroySubwindows :: Display -> Window -> IO ()
- setWindowBorder :: Display -> Window -> Pixel -> IO ()
- setWindowBorderPixmap :: Display -> Window -> Pixmap -> IO ()
- setWindowBorderWidth :: Display -> Window -> Dimension -> IO ()
- setWindowBackground :: Display -> Window -> Pixel -> IO ()
- setWindowBackgroundPixmap :: Display -> Window -> Pixmap -> IO ()
- setWindowColormap :: Display -> Window -> Colormap -> IO ()
- addToSaveSet :: Display -> Window -> IO ()
- removeFromSaveSet :: Display -> Window -> IO ()
- changeSaveSet :: Display -> Window -> ChangeSaveSetMode -> IO ()
- clearWindow :: Display -> Window -> IO ()
- clearArea :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> Bool -> IO ()
- setTextProperty :: Display -> Window -> String -> Atom -> IO ()
- rotateBuffers :: Display -> CInt -> IO ()
- fetchBytes :: Display -> IO String
- fetchBuffer :: Display -> CInt -> IO String
- storeBytes :: Display -> String -> IO ()
- storeBuffer :: Display -> String -> CInt -> IO ()
- drawImageString :: Display -> Drawable -> GC -> Position -> Position -> String -> IO ()
- drawString :: Display -> Drawable -> GC -> Position -> Position -> String -> IO ()
- fillArcs :: Display -> Drawable -> GC -> [Arc] -> IO ()
- fillPolygon :: Display -> Drawable -> GC -> [Point] -> PolygonShape -> CoordinateMode -> IO ()
- fillRectangles :: Display -> Drawable -> GC -> [Rectangle] -> IO ()
- drawArcs :: Display -> Drawable -> GC -> [Arc] -> IO ()
- drawRectangles :: Display -> Drawable -> GC -> [Rectangle] -> IO ()
- drawSegments :: Display -> Drawable -> GC -> [Segment] -> IO ()
- drawLines :: Display -> Drawable -> GC -> [Point] -> CoordinateMode -> IO ()
- drawPoints :: Display -> Drawable -> GC -> [Point] -> CoordinateMode -> IO ()
- set_cursor :: Ptr SetWindowAttributes -> Cursor -> IO ()
- set_colormap :: Ptr SetWindowAttributes -> Colormap -> IO ()
- set_override_redirect :: Ptr SetWindowAttributes -> Bool -> IO ()
- set_do_not_propagate_mask :: Ptr SetWindowAttributes -> EventMask -> IO ()
- set_event_mask :: Ptr SetWindowAttributes -> EventMask -> IO ()
- set_save_under :: Ptr SetWindowAttributes -> Bool -> IO ()
- set_backing_pixel :: Ptr SetWindowAttributes -> Pixel -> IO ()
- set_backing_planes :: Ptr SetWindowAttributes -> Pixel -> IO ()
- set_backing_store :: Ptr SetWindowAttributes -> BackingStore -> IO ()
- set_win_gravity :: Ptr SetWindowAttributes -> WindowGravity -> IO ()
- set_bit_gravity :: Ptr SetWindowAttributes -> BitGravity -> IO ()
- set_border_pixel :: Ptr SetWindowAttributes -> Pixel -> IO ()
- set_border_pixmap :: Ptr SetWindowAttributes -> Pixmap -> IO ()
- set_background_pixel :: Ptr SetWindowAttributes -> Pixel -> IO ()
- set_background_pixmap :: Ptr SetWindowAttributes -> Pixmap -> IO ()
- allocaSetWindowAttributes :: (Ptr SetWindowAttributes -> IO a) -> IO a
- setWMProtocols :: Display -> Window -> [Atom] -> IO ()
- recolorCursor :: Display -> Cursor -> Color -> Color -> IO ()
- createGlyphCursor :: Display -> Font -> Font -> Glyph -> Glyph -> Color -> Color -> IO Cursor
- createPixmapCursor :: Display -> Pixmap -> Pixmap -> Color -> Color -> Dimension -> Dimension -> IO Cursor
- setIconName :: Display -> Window -> String -> IO ()
- getIconName :: Display -> Window -> IO String
- lookupString :: XKeyEventPtr -> IO (Maybe KeySym, String)
- noSymbol :: KeySym
- stringToKeysym :: String -> KeySym
- keysymToString :: KeySym -> String
- displayKeycodes :: Display -> (CInt, CInt)
- readBitmapFile :: Display -> Drawable -> String -> IO (Either String (Dimension, Dimension, Pixmap, Maybe CInt, Maybe CInt))
- matchVisualInfo :: Display -> ScreenNumber -> CInt -> CInt -> IO (Maybe VisualInfo)
- getVisualInfo :: Display -> VisualInfoMask -> VisualInfo -> IO [VisualInfo]
- visualAllMask :: VisualInfoMask
- visualBitsPerRGBMask :: VisualInfoMask
- visualColormapSizeMask :: VisualInfoMask
- visualBlueMaskMask :: VisualInfoMask
- visualGreenMaskMask :: VisualInfoMask
- visualRedMaskMask :: VisualInfoMask
- visualClassMask :: VisualInfoMask
- visualDepthMask :: VisualInfoMask
- visualScreenMask :: VisualInfoMask
- visualIDMask :: VisualInfoMask
- visualNoMask :: VisualInfoMask
- getPointerControl :: Display -> IO (CInt, CInt, CInt)
- getScreenSaver :: Display -> IO (CInt, CInt, PreferBlankingMode, AllowExposuresMode)
- screenSaverReset :: ScreenSaverMode
- screenSaverActive :: ScreenSaverMode
- defaultBlanking :: PreferBlankingMode
- preferBlanking :: PreferBlankingMode
- dontPreferBlanking :: PreferBlankingMode
- defaultExposures :: AllowExposuresMode
- allowExposures :: AllowExposuresMode
- dontAllowExposures :: AllowExposuresMode
- setLocaleModifiers :: String -> IO String
- getGeometry :: Display -> Drawable -> IO (Window, Position, Position, Dimension, Dimension, Dimension, CInt)
- geometry :: Display -> CInt -> String -> String -> Dimension -> Dimension -> Dimension -> CInt -> CInt -> IO (CInt, Position, Position, Dimension, Dimension)
- setDefaultErrorHandler :: IO ()
- displayName :: String -> String
- queryPointer :: Display -> Window -> IO (Bool, Window, Window, CInt, CInt, CInt, CInt, Modifier)
- queryBestSize :: Display -> QueryBestSizeClass -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension)
- queryBestCursor :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension)
- queryBestStipple :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension)
- queryBestTile :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension)
- getInputFocus :: Display -> IO (Window, FocusMode)
- rmInitialize :: IO ()
- autoRepeatOff :: Display -> IO ()
- autoRepeatOn :: Display -> IO ()
- bell :: Display -> CInt -> IO ()
- setCloseDownMode :: Display -> CloseDownMode -> IO ()
- lastKnownRequestProcessed :: Display -> IO CInt
- setInputFocus :: Display -> Window -> FocusMode -> Time -> IO ()
- grabButton :: Display -> Button -> ButtonMask -> Window -> Bool -> EventMask -> GrabMode -> GrabMode -> Window -> Cursor -> IO ()
- ungrabButton :: Display -> Button -> ButtonMask -> Window -> IO ()
- grabPointer :: Display -> Window -> Bool -> EventMask -> GrabMode -> GrabMode -> Window -> Cursor -> Time -> IO GrabStatus
- ungrabPointer :: Display -> Time -> IO ()
- grabKey :: Display -> KeyCode -> KeyMask -> Window -> Bool -> GrabMode -> GrabMode -> IO ()
- ungrabKey :: Display -> KeyCode -> KeyMask -> Window -> IO ()
- grabKeyboard :: Display -> Window -> Bool -> GrabMode -> GrabMode -> Time -> IO GrabStatus
- ungrabKeyboard :: Display -> Time -> IO ()
- grabServer :: Display -> IO ()
- ungrabServer :: Display -> IO ()
- supportsLocale :: IO Bool
- setScreenSaver :: Display -> CInt -> CInt -> PreferBlankingMode -> AllowExposuresMode -> IO ()
- activateScreenSaver :: Display -> IO ()
- resetScreenSaver :: Display -> IO ()
- forceScreenSaver :: Display -> ScreenSaverMode -> IO ()
- warpPointer :: Display -> Window -> Window -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> IO ()
- visualIDFromVisual :: Visual -> IO VisualID
- initThreads :: IO Status
- lockDisplay :: Display -> IO ()
- unlockDisplay :: Display -> IO ()
- createPixmap :: Display -> Drawable -> Dimension -> Dimension -> CInt -> IO Pixmap
- freePixmap :: Display -> Pixmap -> IO ()
- bitmapBitOrder :: Display -> ByteOrder
- bitmapUnit :: Display -> CInt
- bitmapPad :: Display -> CInt
- lookupKeysym :: XKeyEventPtr -> CInt -> IO KeySym
- keycodeToKeysym :: Display -> KeyCode -> CInt -> IO KeySym
- keysymToKeycode :: Display -> KeySym -> IO KeyCode
- defineCursor :: Display -> Window -> Cursor -> IO ()
- undefineCursor :: Display -> Window -> IO ()
- createFontCursor :: Display -> Glyph -> IO Cursor
- freeCursor :: Display -> Font -> IO ()
- drawPoint :: Display -> Drawable -> GC -> Position -> Position -> IO ()
- drawLine :: Display -> Drawable -> GC -> Position -> Position -> Position -> Position -> IO ()
- drawRectangle :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> IO ()
- drawArc :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Angle -> Angle -> IO ()
- fillRectangle :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> IO ()
- fillArc :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Angle -> Angle -> IO ()
- copyArea :: Display -> Drawable -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> IO ()
- copyPlane :: Display -> Drawable -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> Pixel -> IO ()
- type AllowExposuresMode = CInt
- type PreferBlankingMode = CInt
- type ScreenSaverMode = CInt
- type VisualInfoMask = CLong
- lAST_PREDEFINED :: Atom
- wM_TRANSIENT_FOR :: Atom
- wM_CLASS :: Atom
- cAP_HEIGHT :: Atom
- fULL_NAME :: Atom
- fAMILY_NAME :: Atom
- fONT_NAME :: Atom
- nOTICE :: Atom
- cOPYRIGHT :: Atom
- rESOLUTION :: Atom
- pOINT_SIZE :: Atom
- wEIGHT :: Atom
- qUAD_WIDTH :: Atom
- x_HEIGHT :: Atom
- iTALIC_ANGLE :: Atom
- sTRIKEOUT_DESCENT :: Atom
- sTRIKEOUT_ASCENT :: Atom
- uNDERLINE_THICKNESS :: Atom
- uNDERLINE_POSITION :: Atom
- sUBSCRIPT_Y :: Atom
- sUBSCRIPT_X :: Atom
- sUPERSCRIPT_Y :: Atom
- sUPERSCRIPT_X :: Atom
- eND_SPACE :: Atom
- mAX_SPACE :: Atom
- nORM_SPACE :: Atom
- mIN_SPACE :: Atom
- wM_ZOOM_HINTS :: Atom
- wM_SIZE_HINTS :: Atom
- wM_NORMAL_HINTS :: Atom
- wM_NAME :: Atom
- wM_ICON_SIZE :: Atom
- wM_ICON_NAME :: Atom
- wM_CLIENT_MACHINE :: Atom
- wM_HINTS :: Atom
- wM_COMMAND :: Atom
- wINDOW :: Atom
- vISUALID :: Atom
- sTRING :: Atom
- rGB_RED_MAP :: Atom
- rGB_GREEN_MAP :: Atom
- rGB_GRAY_MAP :: Atom
- rGB_DEFAULT_MAP :: Atom
- rGB_BLUE_MAP :: Atom
- rGB_BEST_MAP :: Atom
- rGB_COLOR_MAP :: Atom
- rESOURCE_MANAGER :: Atom
- rECTANGLE :: Atom
- pOINT :: Atom
- pIXMAP :: Atom
- iNTEGER :: Atom
- fONT :: Atom
- dRAWABLE :: Atom
- cUT_BUFFER7 :: Atom
- cUT_BUFFER6 :: Atom
- cUT_BUFFER5 :: Atom
- cUT_BUFFER4 :: Atom
- cUT_BUFFER3 :: Atom
- cUT_BUFFER2 :: Atom
- cUT_BUFFER1 :: Atom
- cUT_BUFFER0 :: Atom
- cURSOR :: Atom
- cOLORMAP :: Atom
- cARDINAL :: Atom
- bITMAP :: Atom
- aTOM :: Atom
- aRC :: Atom
- sECONDARY :: Atom
- pRIMARY :: Atom
- getAtomNames :: Display -> [Atom] -> IO [String]
- getAtomName :: Display -> Atom -> IO (Maybe String)
- internAtom :: Display -> String -> Bool -> IO Atom
- queryColors :: Display -> Colormap -> [Color] -> IO [Color]
- queryColor :: Display -> Colormap -> Color -> IO Color
- storeColor :: Display -> Colormap -> Color -> IO ()
- freeColors :: Display -> Colormap -> [Pixel] -> Pixel -> IO ()
- parseColor :: Display -> Colormap -> String -> IO Color
- allocColor :: Display -> Colormap -> Color -> IO Color
- allocNamedColor :: Display -> Colormap -> String -> IO (Color, Color)
- lookupColor :: Display -> Colormap -> String -> IO (Color, Color)
- installColormap :: Display -> Colormap -> IO ()
- uninstallColormap :: Display -> Colormap -> IO ()
- copyColormapAndFree :: Display -> Colormap -> IO Colormap
- createColormap :: Display -> Window -> Visual -> ColormapAlloc -> IO Colormap
- freeColormap :: Display -> Colormap -> IO ()
- createGC :: Display -> Drawable -> IO GC
- setDashes :: Display -> GC -> CInt -> String -> CInt -> IO ()
- setArcMode :: Display -> GC -> ArcMode -> IO ()
- setBackground :: Display -> GC -> Pixel -> IO ()
- setForeground :: Display -> GC -> Pixel -> IO ()
- setFunction :: Display -> GC -> GXFunction -> IO ()
- setGraphicsExposures :: Display -> GC -> Bool -> IO ()
- setClipMask :: Display -> GC -> Pixmap -> IO ()
- setClipOrigin :: Display -> GC -> Position -> Position -> IO ()
- setFillRule :: Display -> GC -> FillRule -> IO ()
- setFillStyle :: Display -> GC -> FillStyle -> IO ()
- setFont :: Display -> GC -> Font -> IO ()
- setLineAttributes :: Display -> GC -> CInt -> LineStyle -> CapStyle -> JoinStyle -> IO ()
- setPlaneMask :: Display -> GC -> Pixel -> IO ()
- setState :: Display -> GC -> Pixel -> Pixel -> GXFunction -> Pixel -> IO ()
- setStipple :: Display -> GC -> Pixmap -> IO ()
- setSubwindowMode :: Display -> GC -> SubWindowMode -> IO ()
- setTSOrigin :: Display -> GC -> Position -> Position -> IO ()
- setTile :: Display -> GC -> Pixmap -> IO ()
- gContextFromGC :: GC -> GContext
- freeGC :: Display -> GC -> IO ()
- flushGC :: Display -> GC -> IO ()
- copyGC :: Display -> GC -> Mask -> GC -> IO ()
- sendEvent :: Display -> Window -> Bool -> EventMask -> XEventPtr -> IO ()
- gettimeofday_in_milliseconds :: IO Integer
- waitForEvent :: Display -> Word32 -> IO Bool
- get_ConfigureEvent :: XEventPtr -> IO XConfigureEvent
- get_ExposeEvent :: XEventPtr -> IO XExposeEvent
- get_MotionEvent :: XEventPtr -> IO XMotionEvent
- get_ButtonEvent :: XEventPtr -> IO XButtonEvent
- asKeyEvent :: XEventPtr -> XKeyEventPtr
- get_KeyEvent :: XEventPtr -> IO XKeyEvent
- get_Window :: XEventPtr -> IO Window
- get_EventType :: XEventPtr -> IO EventType
- allocaXEvent :: (XEventPtr -> IO a) -> IO a
- queuedAfterReading :: QueuedMode
- queuedAfterFlush :: QueuedMode
- queuedAlready :: QueuedMode
- flush :: Display -> IO ()
- sync :: Display -> Bool -> IO ()
- pending :: Display -> IO CInt
- eventsQueued :: Display -> QueuedMode -> IO CInt
- nextEvent :: Display -> XEventPtr -> IO ()
- allowEvents :: Display -> AllowEvents -> Time -> IO ()
- selectInput :: Display -> Window -> EventMask -> IO ()
- windowEvent :: Display -> Window -> EventMask -> XEventPtr -> IO ()
- checkWindowEvent :: Display -> Window -> EventMask -> XEventPtr -> IO Bool
- maskEvent :: Display -> EventMask -> XEventPtr -> IO ()
- checkMaskEvent :: Display -> EventMask -> XEventPtr -> IO Bool
- checkTypedEvent :: Display -> EventType -> XEventPtr -> IO Bool
- checkTypedWindowEvent :: Display -> Window -> EventType -> XEventPtr -> IO Bool
- putBackEvent :: Display -> XEventPtr -> IO ()
- peekEvent :: Display -> XEventPtr -> IO ()
- type QueuedMode = CInt
- newtype XEvent = XEvent XEventPtr
- type XEventPtr = Ptr XEvent
- type XKeyEvent = (Window, Window, Time, CInt, CInt, CInt, CInt, Modifier, KeyCode, Bool)
- type XKeyEventPtr = Ptr XKeyEvent
- type XButtonEvent = (Window, Window, Time, CInt, CInt, CInt, CInt, Modifier, Button, Bool)
- type XMotionEvent = (Window, Window, Time, CInt, CInt, CInt, CInt, Modifier, NotifyMode, Bool)
- type XExposeEvent = (Position, Position, Dimension, Dimension, CInt)
- type XMappingEvent = (MappingRequest, KeyCode, CInt)
- type XConfigureEvent = (Position, Position, Dimension, Dimension)
- openDisplay :: String -> IO Display
- serverVendor :: Display -> String
- displayString :: Display -> String
- screenResourceString :: Screen -> String
- resourceManagerString :: Display -> String
- allPlanes_aux :: Pixel
- blackPixel :: Display -> ScreenNumber -> Pixel
- whitePixel :: Display -> ScreenNumber -> Pixel
- connectionNumber :: Display -> CInt
- defaultColormap :: Display -> ScreenNumber -> Colormap
- defaultGC :: Display -> ScreenNumber -> GC
- defaultDepth :: Display -> ScreenNumber -> CInt
- defaultScreen :: Display -> ScreenNumber
- defaultScreenOfDisplay :: Display -> Screen
- displayHeight :: Display -> ScreenNumber -> CInt
- displayHeightMM :: Display -> ScreenNumber -> CInt
- displayWidth :: Display -> ScreenNumber -> CInt
- displayWidthMM :: Display -> ScreenNumber -> CInt
- maxRequestSize :: Display -> CInt
- displayMotionBufferSize :: Display -> CInt
- imageByteOrder :: Display -> CInt
- protocolRevision :: Display -> CInt
- protocolVersion :: Display -> CInt
- screenCount :: Display -> CInt
- defaultVisual :: Display -> ScreenNumber -> Visual
- displayCells :: Display -> ScreenNumber -> CInt
- displayPlanes :: Display -> ScreenNumber -> CInt
- screenOfDisplay :: Display -> ScreenNumber -> Screen
- defaultRootWindow :: Display -> Window
- rootWindow :: Display -> ScreenNumber -> IO Window
- qLength :: Display -> IO CInt
- noOp :: Display -> IO ()
- closeDisplay :: Display -> IO ()
- xC_xterm :: Glyph
- xC_watch :: Glyph
- xC_ur_angle :: Glyph
- xC_umbrella :: Glyph
- xC_ul_angle :: Glyph
- xC_trek :: Glyph
- xC_top_tee :: Glyph
- xC_top_side :: Glyph
- xC_top_right_corner :: Glyph
- xC_top_left_corner :: Glyph
- xC_top_left_arrow :: Glyph
- xC_tcross :: Glyph
- xC_target :: Glyph
- xC_star :: Glyph
- xC_spraycan :: Glyph
- xC_spider :: Glyph
- xC_sizing :: Glyph
- xC_shuttle :: Glyph
- xC_sb_v_double_arrow :: Glyph
- xC_sb_up_arrow :: Glyph
- xC_sb_right_arrow :: Glyph
- xC_sb_left_arrow :: Glyph
- xC_sb_h_double_arrow :: Glyph
- xC_sb_down_arrow :: Glyph
- xC_sailboat :: Glyph
- xC_rtl_logo :: Glyph
- xC_rightbutton :: Glyph
- xC_right_tee :: Glyph
- xC_right_side :: Glyph
- xC_right_ptr :: Glyph
- xC_question_arrow :: Glyph
- xC_plus :: Glyph
- xC_pirate :: Glyph
- xC_pencil :: Glyph
- xC_mouse :: Glyph
- xC_man :: Glyph
- xC_lr_angle :: Glyph
- xC_ll_angle :: Glyph
- xC_leftbutton :: Glyph
- xC_left_tee :: Glyph
- xC_left_side :: Glyph
- xC_left_ptr :: Glyph
- xC_iron_cross :: Glyph
- xC_icon :: Glyph
- xC_heart :: Glyph
- xC_hand2 :: Glyph
- xC_hand1 :: Glyph
- xC_gumby :: Glyph
- xC_gobbler :: Glyph
- xC_fleur :: Glyph
- xC_exchange :: Glyph
- xC_draped_box :: Glyph
- xC_draft_small :: Glyph
- xC_draft_large :: Glyph
- xC_double_arrow :: Glyph
- xC_dotbox :: Glyph
- xC_dot :: Glyph
- xC_diamond_cross :: Glyph
- xC_crosshair :: Glyph
- xC_cross_reverse :: Glyph
- xC_cross :: Glyph
- xC_coffee_mug :: Glyph
- xC_clock :: Glyph
- xC_circle :: Glyph
- xC_center_ptr :: Glyph
- xC_box_spiral :: Glyph
- xC_bottom_tee :: Glyph
- xC_bottom_side :: Glyph
- xC_bottom_right_corner :: Glyph
- xC_bottom_left_corner :: Glyph
- xC_bogosity :: Glyph
- xC_boat :: Glyph
- xC_based_arrow_up :: Glyph
- xC_based_arrow_down :: Glyph
- xC_arrow :: Glyph
- xC_X_cursor :: Glyph
- textWidth :: FontStruct -> String -> Int32
- textExtents :: FontStruct -> String -> (FontDirection, Int32, Int32, CharStruct)
- descentFromFontStruct :: FontStruct -> Int32
- ascentFromFontStruct :: FontStruct -> Int32
- fontFromFontStruct :: FontStruct -> Font
- loadQueryFont :: Display -> String -> IO FontStruct
- fontFromGC :: Display -> GC -> IO Font
- queryFont :: Display -> Font -> IO FontStruct
- freeFont :: Display -> FontStruct -> IO ()
- type Glyph = Word16
- data FontStruct
- type CharStruct = (CInt, CInt, CInt, CInt, CInt)
- getPixel :: Image -> CInt -> CInt -> CULong
- getImage :: Display -> Drawable -> CInt -> CInt -> CUInt -> CUInt -> CULong -> ImageFormat -> IO Image
- createImage :: Display -> Visual -> CInt -> ImageFormat -> CInt -> Ptr CChar -> Dimension -> Dimension -> CInt -> CInt -> IO Image
- putImage :: Display -> Drawable -> GC -> Image -> Position -> Position -> Position -> Position -> Dimension -> Dimension -> IO ()
- destroyImage :: Image -> IO ()
- xGetPixel :: Image -> CInt -> CInt -> IO CULong
- setRegion :: Display -> GC -> Region -> IO CInt
- shrinkRegion :: Region -> Point -> IO CInt
- offsetRegion :: Region -> Point -> IO CInt
- clipBox :: Region -> IO (Rectangle, CInt)
- rectInRegion :: Region -> Rectangle -> IO RectInRegionResult
- pointInRegion :: Region -> Point -> IO Bool
- equalRegion :: Region -> Region -> IO Bool
- emptyRegion :: Region -> IO Bool
- xorRegion :: Region -> Region -> Region -> IO CInt
- unionRegion :: Region -> Region -> Region -> IO CInt
- unionRectWithRegion :: Rectangle -> Region -> Region -> IO CInt
- subtractRegion :: Region -> Region -> Region -> IO CInt
- intersectRegion :: Region -> Region -> Region -> IO CInt
- polygonRegion :: [Point] -> FillRule -> IO Region
- createRegion :: IO Region
- rectanglePart :: RectInRegionResult
- rectangleIn :: RectInRegionResult
- rectangleOut :: RectInRegionResult
- data Region
- type RectInRegionResult = CInt
- blackPixelOfScreen :: Screen -> Pixel
- whitePixelOfScreen :: Screen -> Pixel
- cellsOfScreen :: Screen -> CInt
- defaultColormapOfScreen :: Screen -> Colormap
- defaultDepthOfScreen :: Screen -> CInt
- defaultGCOfScreen :: Screen -> GC
- defaultVisualOfScreen :: Screen -> Visual
- doesBackingStore :: Screen -> Bool
- doesSaveUnders :: Screen -> Bool
- displayOfScreen :: Screen -> Display
- eventMaskOfScreen :: Screen -> EventMask
- minCmapsOfScreen :: Screen -> CInt
- maxCmapsOfScreen :: Screen -> CInt
- rootWindowOfScreen :: Screen -> Window
- widthOfScreen :: Screen -> Dimension
- widthMMOfScreen :: Screen -> Dimension
- heightOfScreen :: Screen -> Dimension
- heightMMOfScreen :: Screen -> Dimension
- planesOfScreen :: Screen -> CInt
- screenNumberOfScreen :: Screen -> ScreenNumber
- newtype Display = Display (Ptr Display)
- data Screen
- data Visual
- data GC
- data SetWindowAttributes
- data VisualInfo = VisualInfo {}
- data Image
- type Pixel = Word64
- type Position = Int32
- type Dimension = Word32
- type Angle = CInt
- type ScreenNumber = Word32
- type Buffer = CInt
- data Point = Point {}
- data Rectangle = Rectangle {
- rect_x :: !Position
- rect_y :: !Position
- rect_width :: !Dimension
- rect_height :: !Dimension
- data Arc = Arc {
- arc_x :: Position
- arc_y :: Position
- arc_width :: Dimension
- arc_height :: Dimension
- arc_angle1 :: Angle
- arc_angle2 :: Angle
- data Segment = Segment {}
- data Color = Color {
- color_pixel :: Pixel
- color_red :: Word16
- color_green :: Word16
- color_blue :: Word16
- color_flags :: Word8
- xFree :: Ptr a -> IO CInt
- xRR_UnknownConnection :: Connection
- xRR_Disconnected :: Connection
- xRR_Connected :: Connection
- xRR_Reflect_Y :: Reflection
- xRR_Reflect_X :: Reflection
- xRR_Rotate_270 :: Rotation
- xRR_Rotate_180 :: Rotation
- xRR_Rotate_90 :: Rotation
- xRR_Rotate_0 :: Rotation
- zPixmap :: ImageFormat
- xyPixmap :: ImageFormat
- xyBitmap :: ImageFormat
- fontRightToLeft :: FontDirection
- fontLeftToRight :: FontDirection
- doBlue :: Word8
- doGreen :: Word8
- doRed :: Word8
- always :: BackingStore
- whenMapped :: BackingStore
- notUseful :: BackingStore
- unmapGravity :: WindowGravity
- staticGravity :: BitGravity
- southEastGravity :: BitGravity
- southGravity :: BitGravity
- southWestGravity :: BitGravity
- eastGravity :: BitGravity
- centerGravity :: BitGravity
- westGravity :: BitGravity
- northEastGravity :: BitGravity
- northGravity :: BitGravity
- northWestGravity :: BitGravity
- forgetGravity :: BitGravity
- setModeDelete :: ChangeSaveSetMode
- setModeInsert :: ChangeSaveSetMode
- mappingPointer :: MappingRequest
- mappingKeyboard :: MappingRequest
- mappingModifier :: MappingRequest
- allocAll :: ColormapAlloc
- allocNone :: ColormapAlloc
- mSBFirst :: ByteOrder
- lSBFirst :: ByteOrder
- lowerHighest :: CirculationDirection
- raiseLowest :: CirculationDirection
- gCLastBit :: GCMask
- gCArcMode :: GCMask
- gCDashList :: GCMask
- gCDashOffset :: GCMask
- gCClipMask :: GCMask
- gCClipYOrigin :: GCMask
- gCClipXOrigin :: GCMask
- gCGraphicsExposures :: GCMask
- gCSubwindowMode :: GCMask
- gCFont :: GCMask
- gCTileStipYOrigin :: GCMask
- gCTileStipXOrigin :: GCMask
- gCStipple :: GCMask
- gCTile :: GCMask
- gCFillRule :: GCMask
- gCFillStyle :: GCMask
- gCJoinStyle :: GCMask
- gCCapStyle :: GCMask
- gCLineStyle :: GCMask
- gCLineWidth :: GCMask
- gCBackground :: GCMask
- gCForeground :: GCMask
- gCPlaneMask :: GCMask
- gCFunction :: GCMask
- arcPieSlice :: ArcMode
- arcChord :: ArcMode
- convex :: PolygonShape
- nonconvex :: PolygonShape
- complex :: PolygonShape
- coordModePrevious :: CoordinateMode
- coordModeOrigin :: CoordinateMode
- includeInferiors :: SubWindowMode
- clipByChildren :: SubWindowMode
- windingRule :: FillRule
- evenOddRule :: FillRule
- fillOpaqueStippled :: FillStyle
- fillStippled :: FillStyle
- fillTiled :: FillStyle
- fillSolid :: FillStyle
- joinBevel :: JoinStyle
- joinRound :: JoinStyle
- joinMiter :: JoinStyle
- capProjecting :: CapStyle
- capRound :: CapStyle
- capButt :: CapStyle
- capNotLast :: CapStyle
- lineDoubleDash :: LineStyle
- lineOnOffDash :: LineStyle
- lineSolid :: LineStyle
- gXset :: GXFunction
- gXnand :: GXFunction
- gXorInverted :: GXFunction
- gXcopyInverted :: GXFunction
- gXorReverse :: GXFunction
- gXinvert :: GXFunction
- gXequiv :: GXFunction
- gXnor :: GXFunction
- gXor :: GXFunction
- gXxor :: GXFunction
- gXnoop :: GXFunction
- gXandInverted :: GXFunction
- gXcopy :: GXFunction
- gXandReverse :: GXFunction
- gXand :: GXFunction
- gXclear :: GXFunction
- stippleShape :: QueryBestSizeClass
- tileShape :: QueryBestSizeClass
- cursorShape :: QueryBestSizeClass
- retainTemporary :: CloseDownMode
- retainPermanent :: CloseDownMode
- destroyAll :: CloseDownMode
- cWCursor :: AttributeMask
- cWColormap :: AttributeMask
- cWDontPropagate :: AttributeMask
- cWEventMask :: AttributeMask
- cWSaveUnder :: AttributeMask
- cWOverrideRedirect :: AttributeMask
- cWBackingPixel :: AttributeMask
- cWBackingPlanes :: AttributeMask
- cWBackingStore :: AttributeMask
- cWWinGravity :: AttributeMask
- cWBitGravity :: AttributeMask
- cWBorderPixel :: AttributeMask
- cWBorderPixmap :: AttributeMask
- cWBackPixel :: AttributeMask
- cWBackPixmap :: AttributeMask
- inputOnly :: WindowClass
- inputOutput :: WindowClass
- copyFromParent :: WindowClass
- throwIfZero :: String -> IO Status -> IO ()
- lastExtensionError :: ErrorCode
- firstExtensionError :: ErrorCode
- badImplementation :: ErrorCode
- badLength :: ErrorCode
- badName :: ErrorCode
- badIDChoice :: ErrorCode
- badGC :: ErrorCode
- badColor :: ErrorCode
- badAlloc :: ErrorCode
- badAccess :: ErrorCode
- badDrawable :: ErrorCode
- badMatch :: ErrorCode
- badFont :: ErrorCode
- badCursor :: ErrorCode
- badAtom :: ErrorCode
- badPixmap :: ErrorCode
- badWindow :: ErrorCode
- badValue :: ErrorCode
- badRequest :: ErrorCode
- success :: ErrorCode
- revertToParent :: FocusMode
- revertToPointerRoot :: FocusMode
- revertToNone :: FocusMode
- syncBoth :: AllowEvents
- asyncBoth :: AllowEvents
- replayKeyboard :: AllowEvents
- syncKeyboard :: AllowEvents
- asyncKeyboard :: AllowEvents
- replayPointer :: AllowEvents
- syncPointer :: AllowEvents
- asyncPointer :: AllowEvents
- grabFrozen :: GrabStatus
- grabNotViewable :: GrabStatus
- grabInvalidTime :: GrabStatus
- alreadyGrabbed :: GrabStatus
- grabSuccess :: GrabStatus
- grabModeAsync :: GrabMode
- grabModeSync :: GrabMode
- colormapInstalled :: ColormapNotification
- colormapUninstalled :: ColormapNotification
- propertyDelete :: PropertyNotification
- propertyNewValue :: PropertyNotification
- familyChaos :: Protocol
- familyDECnet :: Protocol
- familyInternet :: Protocol
- placeOnBottom :: Place
- placeOnTop :: Place
- visibilityFullyObscured :: Visibility
- visibilityPartiallyObscured :: Visibility
- visibilityUnobscured :: Visibility
- notifyDetailNone :: NotifyDetail
- notifyPointerRoot :: NotifyDetail
- notifyPointer :: NotifyDetail
- notifyNonlinearVirtual :: NotifyDetail
- notifyNonlinear :: NotifyDetail
- notifyInferior :: NotifyDetail
- notifyVirtual :: NotifyDetail
- notifyAncestor :: NotifyDetail
- notifyHint :: NotifyMode
- notifyWhileGrabbed :: NotifyMode
- notifyUngrab :: NotifyMode
- notifyGrab :: NotifyMode
- notifyNormal :: NotifyMode
- button5 :: Button
- button4 :: Button
- button3 :: Button
- button2 :: Button
- button1 :: Button
- button5Mask :: ButtonMask
- button4Mask :: ButtonMask
- button3Mask :: ButtonMask
- button2Mask :: ButtonMask
- button1Mask :: ButtonMask
- mod5Mask :: KeyMask
- mod4Mask :: KeyMask
- mod3Mask :: KeyMask
- mod2Mask :: KeyMask
- mod1Mask :: KeyMask
- controlMask :: KeyMask
- lockMask :: KeyMask
- shiftMask :: KeyMask
- noModMask :: KeyMask
- anyModifier :: Modifier
- mod5MapIndex :: Modifier
- mod4MapIndex :: Modifier
- mod3MapIndex :: Modifier
- mod2MapIndex :: Modifier
- mod1MapIndex :: Modifier
- controlMapIndex :: Modifier
- lockMapIndex :: Modifier
- shiftMapIndex :: Modifier
- screenSaverNotify :: EventType
- lASTEvent :: EventType
- rrNotifyOutputProperty :: EventType
- rrNotifyOutputChange :: EventType
- rrNotifyCrtcChange :: EventType
- rrNotify :: EventType
- rrScreenChangeNotify :: EventType
- mappingNotify :: EventType
- clientMessage :: EventType
- colormapNotify :: EventType
- selectionNotify :: EventType
- selectionRequest :: EventType
- selectionClear :: EventType
- propertyNotify :: EventType
- circulateRequest :: EventType
- circulateNotify :: EventType
- resizeRequest :: EventType
- gravityNotify :: EventType
- configureRequest :: EventType
- configureNotify :: EventType
- reparentNotify :: EventType
- mapRequest :: EventType
- mapNotify :: EventType
- unmapNotify :: EventType
- destroyNotify :: EventType
- createNotify :: EventType
- visibilityNotify :: EventType
- noExpose :: EventType
- graphicsExpose :: EventType
- expose :: EventType
- keymapNotify :: EventType
- focusOut :: EventType
- focusIn :: EventType
- leaveNotify :: EventType
- enterNotify :: EventType
- motionNotify :: EventType
- buttonRelease :: EventType
- buttonPress :: EventType
- keyRelease :: EventType
- keyPress :: EventType
- screenSaverNotifyMask :: EventMask
- screenSaverCycleMask :: EventMask
- rrOutputPropertyNotifyMask :: EventMask
- rrOutputChangeNotifyMask :: EventMask
- rrCrtcChangeNotifyMask :: EventMask
- rrScreenChangeNotifyMask :: EventMask
- ownerGrabButtonMask :: EventMask
- colormapChangeMask :: EventMask
- propertyChangeMask :: EventMask
- focusChangeMask :: EventMask
- substructureRedirectMask :: EventMask
- substructureNotifyMask :: EventMask
- resizeRedirectMask :: EventMask
- structureNotifyMask :: EventMask
- visibilityChangeMask :: EventMask
- exposureMask :: EventMask
- keymapStateMask :: EventMask
- buttonMotionMask :: EventMask
- button5MotionMask :: EventMask
- button4MotionMask :: EventMask
- button3MotionMask :: EventMask
- button2MotionMask :: EventMask
- button1MotionMask :: EventMask
- pointerMotionHintMask :: EventMask
- pointerMotionMask :: EventMask
- leaveWindowMask :: EventMask
- enterWindowMask :: EventMask
- buttonReleaseMask :: EventMask
- buttonPressMask :: EventMask
- keyReleaseMask :: EventMask
- keyPressMask :: EventMask
- noEventMask :: EventMask
- xK_ydiaeresis :: KeySym
- xK_thorn :: KeySym
- xK_yacute :: KeySym
- xK_udiaeresis :: KeySym
- xK_ucircumflex :: KeySym
- xK_uacute :: KeySym
- xK_ugrave :: KeySym
- xK_oslash :: KeySym
- xK_division :: KeySym
- xK_odiaeresis :: KeySym
- xK_otilde :: KeySym
- xK_ocircumflex :: KeySym
- xK_oacute :: KeySym
- xK_ograve :: KeySym
- xK_ntilde :: KeySym
- xK_eth :: KeySym
- xK_idiaeresis :: KeySym
- xK_icircumflex :: KeySym
- xK_iacute :: KeySym
- xK_igrave :: KeySym
- xK_ediaeresis :: KeySym
- xK_ecircumflex :: KeySym
- xK_eacute :: KeySym
- xK_egrave :: KeySym
- xK_ccedilla :: KeySym
- xK_ae :: KeySym
- xK_aring :: KeySym
- xK_adiaeresis :: KeySym
- xK_atilde :: KeySym
- xK_acircumflex :: KeySym
- xK_aacute :: KeySym
- xK_agrave :: KeySym
- xK_ssharp :: KeySym
- xK_Thorn :: KeySym
- xK_THORN :: KeySym
- xK_Yacute :: KeySym
- xK_Udiaeresis :: KeySym
- xK_Ucircumflex :: KeySym
- xK_Uacute :: KeySym
- xK_Ugrave :: KeySym
- xK_Ooblique :: KeySym
- xK_multiply :: KeySym
- xK_Odiaeresis :: KeySym
- xK_Otilde :: KeySym
- xK_Ocircumflex :: KeySym
- xK_Oacute :: KeySym
- xK_Ograve :: KeySym
- xK_Ntilde :: KeySym
- xK_Eth :: KeySym
- xK_ETH :: KeySym
- xK_Idiaeresis :: KeySym
- xK_Icircumflex :: KeySym
- xK_Iacute :: KeySym
- xK_Igrave :: KeySym
- xK_Ediaeresis :: KeySym
- xK_Ecircumflex :: KeySym
- xK_Eacute :: KeySym
- xK_Egrave :: KeySym
- xK_Ccedilla :: KeySym
- xK_AE :: KeySym
- xK_Aring :: KeySym
- xK_Adiaeresis :: KeySym
- xK_Atilde :: KeySym
- xK_Acircumflex :: KeySym
- xK_Aacute :: KeySym
- xK_Agrave :: KeySym
- xK_questiondown :: KeySym
- xK_threequarters :: KeySym
- xK_onehalf :: KeySym
- xK_onequarter :: KeySym
- xK_guillemotright :: KeySym
- xK_masculine :: KeySym
- xK_onesuperior :: KeySym
- xK_cedilla :: KeySym
- xK_periodcentered :: KeySym
- xK_paragraph :: KeySym
- xK_mu :: KeySym
- xK_acute :: KeySym
- xK_threesuperior :: KeySym
- xK_twosuperior :: KeySym
- xK_plusminus :: KeySym
- xK_degree :: KeySym
- xK_macron :: KeySym
- xK_registered :: KeySym
- xK_hyphen :: KeySym
- xK_notsign :: KeySym
- xK_guillemotleft :: KeySym
- xK_ordfeminine :: KeySym
- xK_copyright :: KeySym
- xK_diaeresis :: KeySym
- xK_section :: KeySym
- xK_brokenbar :: KeySym
- xK_yen :: KeySym
- xK_currency :: KeySym
- xK_sterling :: KeySym
- xK_cent :: KeySym
- xK_exclamdown :: KeySym
- xK_nobreakspace :: KeySym
- xK_asciitilde :: KeySym
- xK_braceright :: KeySym
- xK_bar :: KeySym
- xK_braceleft :: KeySym
- xK_z :: KeySym
- xK_y :: KeySym
- xK_x :: KeySym
- xK_w :: KeySym
- xK_v :: KeySym
- xK_u :: KeySym
- xK_t :: KeySym
- xK_s :: KeySym
- xK_r :: KeySym
- xK_q :: KeySym
- xK_p :: KeySym
- xK_o :: KeySym
- xK_n :: KeySym
- xK_m :: KeySym
- xK_l :: KeySym
- xK_k :: KeySym
- xK_j :: KeySym
- xK_i :: KeySym
- xK_h :: KeySym
- xK_g :: KeySym
- xK_f :: KeySym
- xK_e :: KeySym
- xK_d :: KeySym
- xK_c :: KeySym
- xK_b :: KeySym
- xK_a :: KeySym
- xK_quoteleft :: KeySym
- xK_grave :: KeySym
- xK_underscore :: KeySym
- xK_asciicircum :: KeySym
- xK_bracketright :: KeySym
- xK_backslash :: KeySym
- xK_bracketleft :: KeySym
- xK_Z :: KeySym
- xK_Y :: KeySym
- xK_X :: KeySym
- xK_W :: KeySym
- xK_V :: KeySym
- xK_U :: KeySym
- xK_T :: KeySym
- xK_S :: KeySym
- xK_R :: KeySym
- xK_Q :: KeySym
- xK_P :: KeySym
- xK_O :: KeySym
- xK_N :: KeySym
- xK_M :: KeySym
- xK_L :: KeySym
- xK_K :: KeySym
- xK_J :: KeySym
- xK_I :: KeySym
- xK_H :: KeySym
- xK_G :: KeySym
- xK_F :: KeySym
- xK_E :: KeySym
- xK_D :: KeySym
- xK_C :: KeySym
- xK_B :: KeySym
- xK_A :: KeySym
- xK_at :: KeySym
- xK_question :: KeySym
- xK_greater :: KeySym
- xK_equal :: KeySym
- xK_less :: KeySym
- xK_semicolon :: KeySym
- xK_colon :: KeySym
- xK_9 :: KeySym
- xK_8 :: KeySym
- xK_7 :: KeySym
- xK_6 :: KeySym
- xK_5 :: KeySym
- xK_4 :: KeySym
- xK_3 :: KeySym
- xK_2 :: KeySym
- xK_1 :: KeySym
- xK_0 :: KeySym
- xK_slash :: KeySym
- xK_period :: KeySym
- xK_minus :: KeySym
- xK_comma :: KeySym
- xK_plus :: KeySym
- xK_asterisk :: KeySym
- xK_parenright :: KeySym
- xK_parenleft :: KeySym
- xK_quoteright :: KeySym
- xK_apostrophe :: KeySym
- xK_ampersand :: KeySym
- xK_percent :: KeySym
- xK_dollar :: KeySym
- xK_numbersign :: KeySym
- xK_quotedbl :: KeySym
- xK_exclam :: KeySym
- xK_space :: KeySym
- xK_Hyper_R :: KeySym
- xK_Hyper_L :: KeySym
- xK_Super_R :: KeySym
- xK_Super_L :: KeySym
- xK_Alt_R :: KeySym
- xK_Alt_L :: KeySym
- xK_Meta_R :: KeySym
- xK_Meta_L :: KeySym
- xK_Shift_Lock :: KeySym
- xK_Caps_Lock :: KeySym
- xK_Control_R :: KeySym
- xK_Control_L :: KeySym
- xK_Shift_R :: KeySym
- xK_Shift_L :: KeySym
- xK_R15 :: KeySym
- xK_F35 :: KeySym
- xK_R14 :: KeySym
- xK_F34 :: KeySym
- xK_R13 :: KeySym
- xK_F33 :: KeySym
- xK_R12 :: KeySym
- xK_F32 :: KeySym
- xK_R11 :: KeySym
- xK_F31 :: KeySym
- xK_R10 :: KeySym
- xK_F30 :: KeySym
- xK_R9 :: KeySym
- xK_F29 :: KeySym
- xK_R8 :: KeySym
- xK_F28 :: KeySym
- xK_R7 :: KeySym
- xK_F27 :: KeySym
- xK_R6 :: KeySym
- xK_F26 :: KeySym
- xK_R5 :: KeySym
- xK_F25 :: KeySym
- xK_R4 :: KeySym
- xK_F24 :: KeySym
- xK_R3 :: KeySym
- xK_F23 :: KeySym
- xK_R2 :: KeySym
- xK_F22 :: KeySym
- xK_R1 :: KeySym
- xK_F21 :: KeySym
- xK_L10 :: KeySym
- xK_F20 :: KeySym
- xK_L9 :: KeySym
- xK_F19 :: KeySym
- xK_L8 :: KeySym
- xK_F18 :: KeySym
- xK_L7 :: KeySym
- xK_F17 :: KeySym
- xK_L6 :: KeySym
- xK_F16 :: KeySym
- xK_L5 :: KeySym
- xK_F15 :: KeySym
- xK_L4 :: KeySym
- xK_F14 :: KeySym
- xK_L3 :: KeySym
- xK_F13 :: KeySym
- xK_L2 :: KeySym
- xK_F12 :: KeySym
- xK_L1 :: KeySym
- xK_F11 :: KeySym
- xK_F10 :: KeySym
- xK_F9 :: KeySym
- xK_F8 :: KeySym
- xK_F7 :: KeySym
- xK_F6 :: KeySym
- xK_F5 :: KeySym
- xK_F4 :: KeySym
- xK_F3 :: KeySym
- xK_F2 :: KeySym
- xK_F1 :: KeySym
- xK_KP_9 :: KeySym
- xK_KP_8 :: KeySym
- xK_KP_7 :: KeySym
- xK_KP_6 :: KeySym
- xK_KP_5 :: KeySym
- xK_KP_4 :: KeySym
- xK_KP_3 :: KeySym
- xK_KP_2 :: KeySym
- xK_KP_1 :: KeySym
- xK_KP_0 :: KeySym
- xK_KP_Divide :: KeySym
- xK_KP_Decimal :: KeySym
- xK_KP_Subtract :: KeySym
- xK_KP_Separator :: KeySym
- xK_KP_Add :: KeySym
- xK_KP_Multiply :: KeySym
- xK_KP_Equal :: KeySym
- xK_KP_Delete :: KeySym
- xK_KP_Insert :: KeySym
- xK_KP_Begin :: KeySym
- xK_KP_End :: KeySym
- xK_KP_Page_Down :: KeySym
- xK_KP_Next :: KeySym
- xK_KP_Page_Up :: KeySym
- xK_KP_Prior :: KeySym
- xK_KP_Down :: KeySym
- xK_KP_Right :: KeySym
- xK_KP_Up :: KeySym
- xK_KP_Left :: KeySym
- xK_KP_Home :: KeySym
- xK_KP_F4 :: KeySym
- xK_KP_F3 :: KeySym
- xK_KP_F2 :: KeySym
- xK_KP_F1 :: KeySym
- xK_KP_Enter :: KeySym
- xK_KP_Tab :: KeySym
- xK_KP_Space :: KeySym
- xK_Num_Lock :: KeySym
- xK_script_switch :: KeySym
- xK_Mode_switch :: KeySym
- xK_Break :: KeySym
- xK_Help :: KeySym
- xK_Cancel :: KeySym
- xK_Find :: KeySym
- xK_Menu :: KeySym
- xK_Redo :: KeySym
- xK_Undo :: KeySym
- xK_Insert :: KeySym
- xK_Execute :: KeySym
- xK_Print :: KeySym
- xK_Select :: KeySym
- xK_Begin :: KeySym
- xK_End :: KeySym
- xK_Page_Down :: KeySym
- xK_Next :: KeySym
- xK_Page_Up :: KeySym
- xK_Prior :: KeySym
- xK_Down :: KeySym
- xK_Right :: KeySym
- xK_Up :: KeySym
- xK_Left :: KeySym
- xK_Home :: KeySym
- xK_PreviousCandidate :: KeySym
- xK_MultipleCandidate :: KeySym
- xK_SingleCandidate :: KeySym
- xK_Codeinput :: KeySym
- xK_Multi_key :: KeySym
- xK_Delete :: KeySym
- xK_Escape :: KeySym
- xK_Sys_Req :: KeySym
- xK_Scroll_Lock :: KeySym
- xK_Pause :: KeySym
- xK_Return :: KeySym
- xK_Clear :: KeySym
- xK_Linefeed :: KeySym
- xK_Tab :: KeySym
- xK_BackSpace :: KeySym
- xK_VoidSymbol :: KeySym
- type XID = Word64
- type Mask = Word64
- type Atom = Word64
- type VisualID = Word64
- type Time = Word64
- type Window = XID
- type Drawable = XID
- type Font = XID
- type Pixmap = XID
- type Cursor = XID
- type Colormap = XID
- type GContext = XID
- type KeyCode = Word8
- type KeySym = XID
- type EventMask = Mask
- type EventType = Word32
- type Modifier = CUInt
- type KeyMask = Modifier
- type ButtonMask = Modifier
- type Button = Word32
- type NotifyMode = CInt
- type NotifyDetail = CInt
- type Visibility = CInt
- type Place = CInt
- type Protocol = CInt
- type PropertyNotification = CInt
- type ColormapNotification = CInt
- type GrabMode = CInt
- type GrabStatus = CInt
- type AllowEvents = CInt
- type FocusMode = CInt
- type ErrorCode = CInt
- type Status = CInt
- type WindowClass = CInt
- type AttributeMask = Mask
- type CloseDownMode = CInt
- type QueryBestSizeClass = CInt
- type GXFunction = CInt
- type LineStyle = CInt
- type CapStyle = CInt
- type JoinStyle = CInt
- type FillStyle = CInt
- type FillRule = CInt
- type SubWindowMode = CInt
- type CoordinateMode = CInt
- type PolygonShape = CInt
- type ArcMode = CInt
- type GCMask = CInt
- type CirculationDirection = CInt
- type ByteOrder = CInt
- type ColormapAlloc = CInt
- type MappingRequest = CInt
- type ChangeSaveSetMode = CInt
- type BitGravity = CInt
- type WindowGravity = CInt
- type BackingStore = CInt
- type FontDirection = CInt
- type ImageFormat = CInt
- type Rotation = Word16
- type Reflection = Word16
- type SizeID = Word16
- type SubpixelOrder = Word16
- type Connection = Word16
- type RROutput = Word64
- type RRCrtc = Word64
- type RRMode = Word64
- type XRRModeFlags = Word64
- class Monad m => MonadIO (m :: Type -> Type) where
- (.|.) :: Bits a => a -> a -> a
- class Default a where
- def :: a
- gets :: MonadState s m => (s -> a) -> m a
- modify :: MonadState s m => (s -> s) -> m ()
- class Monad m => MonadState s (m :: Type -> Type) | m -> s where
- asks :: MonadReader r m => (r -> a) -> m a
- class Monad m => MonadReader r (m :: Type -> Type) | m -> r where
- launch :: forall (l :: Type -> Type). (LayoutClass l Window, Read (l Window)) => XConfig l -> Directories -> IO ()
- defaultConfig :: XConfig (Choose Tall (Choose (Mirror Tall) Full))
- doShift :: WorkspaceId -> ManageHook
- doIgnore :: ManageHook
- doFloat :: ManageHook
- doF :: (s -> s) -> Query (Endo s)
- getStringProperty :: Display -> Window -> String -> X (Maybe String)
- stringProperty :: String -> Query String
- className :: Query String
- resource :: Query String
- appName :: Query String
- title :: Query String
- ifM :: Monad m => m Bool -> m a -> m a -> m a
- (<||>) :: Monad m => m Bool -> m Bool -> m Bool
- (<&&>) :: Monad m => m Bool -> m Bool -> m Bool
- (=?) :: Eq a => Query a -> a -> Query Bool
- (-->) :: (Monad m, Monoid a) => m Bool -> m a -> m a
- composeAll :: Monoid m => [m] -> m
- (<+>) :: Monoid m => m -> m -> m
- idHook :: Monoid m => m
- liftX :: X a -> Query a
- applyMaxSizeHint :: D -> D -> D
- applyResizeIncHint :: D -> D -> D
- applyAspectHint :: (D, D) -> D -> D
- applySizeHints' :: SizeHints -> D -> D
- applySizeHintsContents :: Integral a => SizeHints -> (a, a) -> D
- applySizeHints :: Integral a => Dimension -> SizeHints -> (a, a) -> D
- mkAdjust :: Window -> X (D -> D)
- mouseResizeWindow :: Window -> X ()
- mouseMoveWindow :: Window -> X ()
- mouseDrag :: (Position -> Position -> X ()) -> X () -> X ()
- float :: Window -> X ()
- pointWithin :: Position -> Position -> Rectangle -> Bool
- pointScreen :: Position -> Position -> X (Maybe (Screen WorkspaceId (Layout Window) Window ScreenId ScreenDetail))
- floatLocation :: Window -> X (ScreenId, RationalRect)
- restart :: String -> Bool -> X ()
- readStateFile :: forall (l :: Type -> Type). (LayoutClass l Window, Read (l Window)) => XConfig l -> X (Maybe XState)
- writeStateToFile :: X ()
- initColor :: Display -> String -> IO (Maybe Pixel)
- cleanMask :: KeyMask -> X KeyMask
- extraModifiers :: X [KeyMask]
- isClient :: Window -> X Bool
- withUnfocused :: (Window -> X ()) -> X ()
- withFocused :: (Window -> X ()) -> X ()
- screenWorkspace :: ScreenId -> X (Maybe WorkspaceId)
- setLayout :: Layout Window -> X ()
- updateLayout :: WorkspaceId -> Maybe (Layout Window) -> X ()
- sendMessageWithNoRefresh :: Message a => a -> WindowSpace -> X ()
- broadcastMessage :: Message a => a -> X ()
- sendMessage :: Message a => a -> X ()
- setFocusX :: Window -> X ()
- focus :: Window -> X ()
- setTopFocus :: X ()
- setButtonGrab :: Bool -> Window -> X ()
- rescreen :: X ()
- getCleanedScreenInfo :: MonadIO m => Display -> m [Rectangle]
- nubScreens :: [Rectangle] -> [Rectangle]
- containedIn :: Rectangle -> Rectangle -> Bool
- tileWindow :: Window -> Rectangle -> X ()
- clearEvents :: EventMask -> X ()
- refresh :: X ()
- setInitialProperties :: Window -> X ()
- reveal :: Window -> X ()
- hide :: Window -> X ()
- setWindowBorderWithFallback :: Display -> Window -> String -> Pixel -> X ()
- setWMState :: Window -> Int -> X ()
- scaleRationalRect :: Rectangle -> RationalRect -> Rectangle
- windowBracket_ :: X Any -> X ()
- windowBracket :: (a -> Bool) -> X a -> X a
- modifyWindowSet :: (WindowSet -> WindowSet) -> X ()
- windows :: (WindowSet -> WindowSet) -> X ()
- kill :: X ()
- killWindow :: Window -> X ()
- unmanage :: Window -> X ()
- manage :: Window -> X ()
- data StateFile = StateFile {
- sfWins :: StackSet WorkspaceId String Window ScreenId ScreenDetail
- sfExt :: [(String, String)]
- type D = (Dimension, Dimension)
- (|||) :: l a -> r a -> Choose l r a
- mirrorRect :: Rectangle -> Rectangle
- splitVerticallyBy :: RealFrac r => r -> Rectangle -> (Rectangle, Rectangle)
- splitHorizontallyBy :: RealFrac r => r -> Rectangle -> (Rectangle, Rectangle)
- splitHorizontally :: Int -> Rectangle -> [Rectangle]
- splitVertically :: Int -> Rectangle -> [Rectangle]
- tile :: Rational -> Rectangle -> Int -> Int -> [Rectangle]
- data Resize
- data IncMasterN = IncMasterN !Int
- data Full a = Full
- data Tall a = Tall {
- tallNMaster :: !Int
- tallRatioIncrement :: !Rational
- tallRatio :: !Rational
- newtype Mirror (l :: Type -> Type) a = Mirror (l a)
- data ChangeLayout
- newtype JumpToLayout = JumpToLayout String
- data Choose (l :: Type -> Type) (r :: Type -> Type) a = Choose CLR (l a) (r a)
- data CLR
- uninstallSignalHandlers :: MonadIO m => m ()
- installSignalHandlers :: MonadIO m => m ()
- trace :: MonadIO m => String -> m ()
- whenX :: X Bool -> X () -> X ()
- whenJust :: Monad m => Maybe a -> (a -> m ()) -> m ()
- recompile :: MonadIO m => Directories -> Bool -> m Bool
- stateFileName :: Directories -> FilePath
- binFileName :: Directories -> FilePath
- getXMonadDataDir :: X String
- getXMonadCacheDir :: X String
- getXMonadDir :: X String
- getDirectories :: IO Directories
- runOnWorkspaces :: (WindowSpace -> X WindowSpace) -> X ()
- xmessage :: MonadIO m => String -> m ()
- xfork :: MonadIO m => IO () -> m ProcessID
- spawnPID :: MonadIO m => String -> m ProcessID
- spawn :: MonadIO m => String -> m ()
- catchIO :: MonadIO m => IO () -> m ()
- io :: MonadIO m => IO a -> m a
- fromMessage :: Message m => SomeMessage -> Maybe m
- readsLayout :: Layout a -> String -> [(Layout a, String)]
- atom_WM_TAKE_FOCUS :: X Atom
- atom_WM_STATE :: X Atom
- atom_WM_DELETE_WINDOW :: X Atom
- atom_WM_PROTOCOLS :: X Atom
- getAtom :: String -> X Atom
- isRoot :: Window -> X Bool
- withWindowAttributes :: Display -> Window -> (WindowAttributes -> X ()) -> X ()
- withWindowSet :: (WindowSet -> X a) -> X a
- withDisplay :: (Display -> X a) -> X a
- userCodeDef :: a -> X a -> X a
- userCode :: X a -> X (Maybe a)
- catchX :: X a -> X a -> X a
- runX :: XConf -> XState -> X a -> IO (a, XState)
- runQuery :: Query a -> Window -> X a
- data XState = XState {}
- data XConf = XConf {
- display :: Display
- config :: !(XConfig Layout)
- theRoot :: !Window
- normalBorder :: !Pixel
- focusedBorder :: !Pixel
- keyActions :: !(Map (KeyMask, KeySym) (X ()))
- buttonActions :: !(Map (KeyMask, Button) (Window -> X ()))
- mouseFocused :: !Bool
- mousePosition :: !(Maybe (Position, Position))
- currentEvent :: !(Maybe Event)
- directories :: !Directories
- data XConfig (l :: Type -> Type) = XConfig !String !String !String !(l Window) !ManageHook !(Event -> X All) ![String] !KeyMask !(XConfig Layout -> Map (ButtonMask, KeySym) (X ())) !(XConfig Layout -> Map (ButtonMask, Button) (Window -> X ())) !Dimension !(X ()) !(X ()) !Bool !Bool !EventMask !EventMask !([String] -> XConfig Layout -> IO (XConfig Layout)) !(Map TypeRep ConfExtension)
- type WindowSet = StackSet WorkspaceId (Layout Window) Window ScreenId ScreenDetail
- type WindowSpace = Workspace WorkspaceId (Layout Window) Window
- type WorkspaceId = String
- newtype ScreenId = S Int
- newtype ScreenDetail = SD {}
- data X a
- type ManageHook = Query (Endo WindowSet)
- newtype Query a = Query (ReaderT Window X a)
- data Layout a = (LayoutClass l a, Read (l a)) => Layout (l a)
- class (Show (layout a), Typeable layout) => LayoutClass (layout :: Type -> Type) a where
- runLayout :: Workspace WorkspaceId (layout a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (layout a))
- doLayout :: layout a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (layout a))
- pureLayout :: layout a -> Rectangle -> Stack a -> [(a, Rectangle)]
- emptyLayout :: layout a -> Rectangle -> X ([(a, Rectangle)], Maybe (layout a))
- handleMessage :: layout a -> SomeMessage -> X (Maybe (layout a))
- pureMessage :: layout a -> SomeMessage -> Maybe (layout a)
- description :: layout a -> String
- class Typeable a => Message a
- data SomeMessage = Message a => SomeMessage a
- data LayoutMessages
- class Typeable a => ExtensionClass a where
- initialValue :: a
- extensionType :: a -> StateExtension
- data StateExtension
- = ExtensionClass a => StateExtension a
- | (Read a, Show a, ExtensionClass a) => PersistentExtension a
- data ConfExtension = Typeable a => ConfExtension a
- data Directories' a = Directories {}
- type Directories = Directories' FilePath
- (++) :: [a] -> [a] -> [a]
- seq :: forall (r :: RuntimeRep) a (b :: TYPE r). a -> b -> b
- filter :: (a -> Bool) -> [a] -> [a]
- zip :: [a] -> [b] -> [(a, b)]
- print :: Show a => a -> IO ()
- fst :: (a, b) -> a
- snd :: (a, b) -> b
- otherwise :: Bool
- map :: (a -> b) -> [a] -> [b]
- ($) :: forall (r :: RuntimeRep) a (b :: TYPE r). (a -> b) -> a -> b
- fromIntegral :: (Integral a, Num b) => a -> b
- realToFrac :: (Real a, Fractional b) => a -> b
- class Bounded a where
- class Enum a where
- succ :: a -> a
- pred :: a -> a
- toEnum :: Int -> a
- fromEnum :: a -> Int
- enumFrom :: a -> [a]
- enumFromThen :: a -> a -> [a]
- enumFromTo :: a -> a -> [a]
- enumFromThenTo :: a -> a -> a -> [a]
- class Eq a where
- class Fractional a => Floating a where
- class Num a => Fractional a where
- (/) :: a -> a -> a
- recip :: a -> a
- fromRational :: Rational -> a
- class (Real a, Enum a) => Integral a where
- class Applicative m => Monad (m :: Type -> Type) where
- class Functor (f :: Type -> Type) where
- class Num a where
- class Eq a => Ord a where
- class Read a where
- class (Num a, Ord a) => Real a where
- toRational :: a -> Rational
- class (RealFrac a, Floating a) => RealFloat a where
- floatRadix :: a -> Integer
- floatDigits :: a -> Int
- floatRange :: a -> (Int, Int)
- decodeFloat :: a -> (Integer, Int)
- encodeFloat :: Integer -> Int -> a
- exponent :: a -> Int
- significand :: a -> a
- scaleFloat :: Int -> a -> a
- isNaN :: a -> Bool
- isInfinite :: a -> Bool
- isDenormalized :: a -> Bool
- isNegativeZero :: a -> Bool
- isIEEE :: a -> Bool
- atan2 :: a -> a -> a
- class (Real a, Fractional a) => RealFrac a where
- class Show a where
- class Monad m => MonadFail (m :: Type -> Type) where
- class Functor f => Applicative (f :: Type -> Type) where
- class Foldable (t :: Type -> Type) where
- foldMap :: Monoid m => (a -> m) -> t a -> m
- foldr :: (a -> b -> b) -> b -> t a -> b
- foldl :: (b -> a -> b) -> b -> t a -> b
- foldr1 :: (a -> a -> a) -> t a -> a
- foldl1 :: (a -> a -> a) -> t a -> a
- null :: t a -> Bool
- length :: t a -> Int
- elem :: Eq a => a -> t a -> Bool
- maximum :: Ord a => t a -> a
- minimum :: Ord a => t a -> a
- sum :: Num a => t a -> a
- product :: Num a => t a -> a
- class (Functor t, Foldable t) => Traversable (t :: Type -> Type) where
- traverse :: Applicative f => (a -> f b) -> t a -> f (t b)
- sequenceA :: Applicative f => t (f a) -> f (t a)
- mapM :: Monad m => (a -> m b) -> t a -> m (t b)
- sequence :: Monad m => t (m a) -> m (t a)
- class Semigroup a where
- (<>) :: a -> a -> a
- class Semigroup a => Monoid a where
- data Bool
- data Char
- data Double
- data Float
- data Int
- data Integer
- data Maybe a
- data Ordering
- type Rational = Ratio Integer
- data IO a
- data Word
- data Either a b
- readIO :: Read a => String -> IO a
- readLn :: Read a => IO a
- appendFile :: FilePath -> String -> IO ()
- writeFile :: FilePath -> String -> IO ()
- readFile :: FilePath -> IO String
- interact :: (String -> String) -> IO ()
- getContents :: IO String
- getLine :: IO String
- getChar :: IO Char
- putStrLn :: String -> IO ()
- putStr :: String -> IO ()
- putChar :: Char -> IO ()
- ioError :: IOError -> IO a
- type FilePath = String
- userError :: String -> IOError
- type IOError = IOException
- notElem :: (Foldable t, Eq a) => a -> t a -> Bool
- all :: Foldable t => (a -> Bool) -> t a -> Bool
- any :: Foldable t => (a -> Bool) -> t a -> Bool
- or :: Foldable t => t Bool -> Bool
- and :: Foldable t => t Bool -> Bool
- concatMap :: Foldable t => (a -> [b]) -> t a -> [b]
- concat :: Foldable t => t [a] -> [a]
- sequence_ :: (Foldable t, Monad m) => t (m a) -> m ()
- mapM_ :: (Foldable t, Monad m) => (a -> m b) -> t a -> m ()
- unwords :: [String] -> String
- words :: String -> [String]
- unlines :: [String] -> String
- lines :: String -> [String]
- read :: Read a => String -> a
- reads :: Read a => ReadS a
- either :: (a -> c) -> (b -> c) -> Either a b -> c
- lex :: ReadS String
- readParen :: Bool -> ReadS a -> ReadS a
- type ReadS a = String -> [(a, String)]
- lcm :: Integral a => a -> a -> a
- gcd :: Integral a => a -> a -> a
- (^^) :: (Fractional a, Integral b) => a -> b -> a
- (^) :: (Num a, Integral b) => a -> b -> a
- odd :: Integral a => a -> Bool
- even :: Integral a => a -> Bool
- showParen :: Bool -> ShowS -> ShowS
- showString :: String -> ShowS
- showChar :: Char -> ShowS
- shows :: Show a => a -> ShowS
- type ShowS = String -> String
- unzip3 :: [(a, b, c)] -> ([a], [b], [c])
- unzip :: [(a, b)] -> ([a], [b])
- zipWith3 :: (a -> b -> c -> d) -> [a] -> [b] -> [c] -> [d]
- zipWith :: (a -> b -> c) -> [a] -> [b] -> [c]
- zip3 :: [a] -> [b] -> [c] -> [(a, b, c)]
- (!!) :: [a] -> Int -> a
- lookup :: Eq a => a -> [(a, b)] -> Maybe b
- reverse :: [a] -> [a]
- break :: (a -> Bool) -> [a] -> ([a], [a])
- span :: (a -> Bool) -> [a] -> ([a], [a])
- splitAt :: Int -> [a] -> ([a], [a])
- drop :: Int -> [a] -> [a]
- take :: Int -> [a] -> [a]
- dropWhile :: (a -> Bool) -> [a] -> [a]
- takeWhile :: (a -> Bool) -> [a] -> [a]
- cycle :: [a] -> [a]
- replicate :: Int -> a -> [a]
- repeat :: a -> [a]
- iterate :: (a -> a) -> a -> [a]
- scanr1 :: (a -> a -> a) -> [a] -> [a]
- scanr :: (a -> b -> b) -> b -> [a] -> [b]
- scanl1 :: (a -> a -> a) -> [a] -> [a]
- scanl :: (b -> a -> b) -> b -> [a] -> [b]
- init :: [a] -> [a]
- last :: [a] -> a
- tail :: [a] -> [a]
- head :: [a] -> a
- maybe :: b -> (a -> b) -> Maybe a -> b
- (<$>) :: Functor f => (a -> b) -> f a -> f b
- uncurry :: (a -> b -> c) -> (a, b) -> c
- curry :: ((a, b) -> c) -> a -> b -> c
- subtract :: Num a => a -> a -> a
- asTypeOf :: a -> a -> a
- until :: (a -> Bool) -> (a -> a) -> a -> a
- ($!) :: forall (r :: RuntimeRep) a (b :: TYPE r). (a -> b) -> a -> b
- flip :: (a -> b -> c) -> b -> a -> c
- (.) :: (b -> c) -> (a -> b) -> a -> c
- const :: a -> b -> a
- id :: a -> a
- (=<<) :: Monad m => (a -> m b) -> m a -> m b
- type String = [Char]
- undefined :: forall (r :: RuntimeRep) (a :: TYPE r). HasCallStack => a
- errorWithoutStackTrace :: forall (r :: RuntimeRep) (a :: TYPE r). [Char] -> a
- error :: forall (r :: RuntimeRep) (a :: TYPE r). HasCallStack => [Char] -> a
- (&&) :: Bool -> Bool -> Bool
- (||) :: Bool -> Bool -> Bool
- not :: Bool -> Bool
- type Prime l l' = Arr (XConfig l) (XConfig l')
- type Arr x y = x -> IO y
- (>>) :: Arr x y -> Arr y z -> Arr x z
- ifThenElse :: Bool -> a -> a -> a
Start here
To start with, create a ~/.xmonad/xmonad.hs that looks like this:
{-# LANGUAGE RebindableSyntax #-}
import XMonad.Config.Prime
-- Imports go here.
main = xmonad $ do
nothing
-- Configs go here.This will give you a default xmonad install, with room to grow. The lines starting with double dashes are comments. You may delete them. Note that Haskell is a bit precise about indentation. Make sure all the statements in your do-block start at the same column, and make sure that any multi-line statements are formatted with a hanging indent. (For an example, see the 'keys =+' statement in the Example config section, below.)
After changing your config file, restart xmonad with mod-q (where, by default, "mod" == "alt").
xmonad :: (Default a, Read (l Window), LayoutClass l Window) => (a -> IO (XConfig l)) -> IO () Source #
This doesn't modify the config in any way. It's just here for your initial config because Haskell doesn't allow empty do-blocks. Feel free to delete it once you've added other stuff.
Attributes you can set
These are a bunch of attributes that you can set. Syntax looks like this:
terminal =: "urxvt"
Strings are double quoted, Dimensions are unquoted integers, booleans are
True or False (case-sensitive), and modMask is usually mod1Mask or
mod4Mask.
normalBorderColor :: Settable String (XConfig l) Source #
Non-focused windows border color. Default: "#dddddd"
focusedBorderColor :: Settable String (XConfig l) Source #
Focused windows border color. Default: "#ff0000"
terminal :: Settable String (XConfig l) Source #
The preferred terminal application. Default: "xterm"
modMask :: Settable KeyMask (XConfig l) Source #
The mod modifier, as used by key bindings. Default: mod1Mask (which is
probably alt on your computer).
borderWidth :: Settable Dimension (XConfig l) Source #
The border width (in pixels). Default: 1
focusFollowsMouse :: Settable Bool (XConfig l) Source #
Whether window focus follows the mouse cursor on move, or requires a mouse
click. (Mouse? What's that?) Default: True
clickJustFocuses :: Settable Bool (XConfig l) Source #
If True, a mouse click on an inactive window focuses it, but the click is
not passed to the window. If False, the click is also passed to the window.
Default True
class SettableClass s x y | s -> x y where Source #
Instances
| UpdateableClass s x y => SettableClass s x y Source # | |
Defined in XMonad.Config.Prime | |
class UpdateableClass s x y | s -> x y where Source #
Attributes you can add to
In addition to being able to set these attributes, they have a special
syntax for being able to add to them. The operator is =+ (the plus comes
after the equals), but each attribute has a different syntax for what
comes after the operator.
manageHook :: Summable ManageHook ManageHook (XConfig l) Source #
The action to run when a new window is opened. Default:
manageHook =: composeAll [className =? "MPlayer" --> doFloat, className =? "Gimp" --> doFloat]
To add more rules to this list, you can say, for instance:
import XMonad.StackSet ... manageHook =+ (className =? "Emacs" --> doF kill) manageHook =+ (className =? "Vim" --> doF shiftMaster)
Note that operator precedence mandates the parentheses here.
handleEventHook :: Summable (Event -> X All) (Event -> X All) (XConfig l) Source #
Custom X event handler. Return All True if the default handler should
also be run afterwards. Default does nothing. To add an event handler:
import XMonad.Hooks.ServerMode ... handleEventHook =+ serverModeEventHook
workspaces :: Summable [String] [String] (XConfig l) Source #
List of workspaces' names. Default: map show [1 .. 9 :: Int]. Adding
appends to the end:
workspaces =+ ["0"]
This is useless unless you also create keybindings for this.
logHook :: Summable (X ()) (X ()) (XConfig l) Source #
The action to perform when the windows set is changed. This happens
whenever focus change, a window is moved, etc. logHook =+ takes an X ()
and appends it via (>>). For instance:
import XMonad.Hooks.ICCCMFocus ... logHook =+ takeTopFocus
Note that if your expression is parametrically typed (e.g. of type
MonadIO m => m ()), you'll need to explicitly annotate it, like so:
logHook =+ (io $ putStrLn "Hello, world!" :: X ())
startupHook :: Summable (X ()) (X ()) (XConfig l) Source #
The action to perform on startup. startupHook =+ takes an X () and
appends it via (>>). For instance:
import XMonad.Hooks.SetWMName ... startupHook =+ setWMName "LG3D"
Note that if your expression is parametrically typed (e.g. of type
MonadIO m => m ()), you'll need to explicitly annotate it, as documented
in logHook.
clientMask :: Summable EventMask EventMask (XConfig l) Source #
The client events that xmonad is interested in. This is useful in
combination with handleEventHook. Default: structureNotifyMask .|.
enterWindowMask .|. propertyChangeMask
clientMask =+ keyPressMask .|. keyReleaseMask
rootMask :: Summable EventMask EventMask (XConfig l) Source #
The root events that xmonad is interested in. This is useful in
combination with handleEventHook. Default: substructureRedirectMask .|.
substructureNotifyMask .|. enterWindowMask .|. leaveWindowMask .|.
structureNotifyMask .|. buttonPressMask
class SummableClass s y | s -> y where Source #
Attributes you can add to or remove from
The following support the the =+ for adding items and the =- operator
for removing items.
mouseBindings :: MouseBindings (XConfig l) Source #
Mouse button bindings to an X actions on a window. Default: see `man
xmonad`. To make mod-scrollwheel switch workspaces:
import XMonad.Actions.CycleWS (nextWS, prevWS)
...
mouseBindings =+ [((mod4Mask, button4), const prevWS),
((mod4Mask, button5), const nextWS)]Note that you need to specify the numbered mod-mask e.g. mod4Mask instead
of just modMask.
class RemovableClass r y | r -> y where Source #
Modifying the list of workspaces
Workspaces can be configured through workspaces, but then the keys need
to be set, and this can be a bit laborious. withWorkspaces provides a
convenient mechanism for common workspace updates.
withWorkspaces :: Arr WorkspaceConfig WorkspaceConfig -> Prime l l Source #
Configure workspaces through a Prime-like interface. Example:
withWorkspaces $ do
wsKeys =+ ["0"]
wsActions =+ [("M-M1-", windows . swapWithCurrent)]
wsSetName 1 "mail"This will set workspaces and add the necessary keybindings to keys. Note
that it won't remove old keybindings; it's just not that clever.
wsNames :: Settable [String] WorkspaceConfig Source #
The list of workspace names, like workspaces but with two differences:
- If any entry is the empty string, it'll be replaced with the
corresponding entry in
wsKeys. - The list is truncated to the size of
wsKeys.
The default value is .repeat ""
If you'd like to create workspaces without associated keyspecs, you can do
that afterwards, outside the withWorkspaces block, with .workspaces =+
wsKeys :: Summable [String] [String] WorkspaceConfig Source #
The list of workspace keys. These are combined with the modifiers in
wsActions to form the keybindings for navigating to workspaces. Default:
["1","2",...,"9"].
wsActions :: Summable [(String, String -> X ())] [(String, String -> X ())] WorkspaceConfig Source #
Mapping from key prefix to command. Its type is [(String, String ->
X())]. The key prefix may be a modifier such as "M-", or a submap
prefix such as "M-a ", or both, as in "M-a M-". The command is a
function that takes a workspace name and returns an X (). withWorkspaces
creates keybindings for the cartesian product of wsKeys and wsActions.
Default:
[("M-", windows . W.greedyView),
("M-S-", windows . W.shift)]wsSetName :: Int -> String -> Arr WorkspaceConfig WorkspaceConfig Source #
A convenience for just modifying one entry in wsNames, in case you only
want a few named workspaces. Example:
wsSetName 1 "mail"
wsSetName 2 "web"Modifying the screen keybindings
withScreens provides a convenient mechanism to set keybindings for moving
between screens, much like withWorkspaces.
withScreens :: Arr ScreenConfig ScreenConfig -> Prime l l Source #
Configure screen keys through a Prime-like interface:
withScreens $ do
sKeys =: ["e", "r"]This will add the necessary keybindings to keys. Note that it won't remove
old keybindings; it's just not that clever.
sKeys :: Summable [String] [String] ScreenConfig Source #
The list of screen keys. These are combined with the modifiers in
sActions to form the keybindings for navigating to workspaces. Default:
["w","e","r"].
sActions :: Summable [(String, ScreenId -> X ())] [(String, ScreenId -> X ())] ScreenConfig Source #
Mapping from key prefix to command. Its type is [(String, ScreenId ->
X())]. Works the same as wsActions except for a different function type.
Default:
[("M-", windows . onScreens W.view),
("M-S-", windows . onScreens W.shift)]onScreens :: Eq s => (i -> StackSet i l a s sd -> StackSet i l a s sd) -> s -> StackSet i l a s sd -> StackSet i l a s sd Source #
Converts a stackset transformer parameterized on the workspace type into one
parameterized on the screen type. For example, you can use onScreens W.view
0 to navigate to the workspace on the 0th screen. If the screen id is not
recognized, the returned transformer acts as an identity function.
Modifying the layoutHook
Layouts are special. You can't modify them using the =: or =. operator.
You need to use the following functions.
addLayout :: (LayoutClass l Window, LayoutClass r Window) => r Window -> Prime l (Choose l r) Source #
Add a layout to the list of layouts choosable with mod-space. For instance:
import XMonad.Layout.Tabbed ... addLayout simpleTabbed
resetLayout :: LayoutClass r Window => r Window -> Prime l r Source #
Reset the layoutHook from scratch. For instance, to get rid of the wide layout:
resetLayout $ Tall 1 (3/100) (1/2) ||| Full
(The dollar is like an auto-closing parenthesis, so all the stuff to the right of it is treated like an argument to resetLayout.)
modifyLayout :: LayoutClass r Window => (l Window -> r Window) -> Prime l r Source #
Modify your layoutHook with some wrapper function. You probably want to call
this after you're done calling addLayout. Example:
import XMonad.Layout.NoBorders ... modifyLayout smartBorders
Updating the XConfig en masse
Finally, there are a few contrib modules that bundle multiple attribute updates together. There are three types: 1) wholesale replacements for the default config, 2) pure functions on the config, and 3) IO actions on the config. The syntax for each is different. Examples:
1) To start with a gnomeConfig instead of the default,
we use startWith:
import XMonad.Config.Gnome ... startWith gnomeConfig
2) withUrgencyHook is a pure function, so we need
to use apply:
import XMonad.Hooks.UrgencyHook ... apply $ withUrgencyHook dzenUrgencyHook
3) xmobar returns an IO (XConfig l), so we need
to use applyIO:
import XMonad.Hooks.DynamicLog ... applyIO xmobar
startWith :: XConfig l' -> Prime l l' Source #
Replace the current XConfig with the given one. If you use this, you
probably want it to be the first line of your config.
The rest of the world
Everything you know and love from the core XMonad module is available for use in your config file, too.
The class Typeable allows a concrete representation of a type to
be calculated.
Minimal complete definition
typeRep#
getErrorEvent :: XErrorEventPtr -> IO ErrorEvent Source #
Retrieves error event data from a pointer to an XErrorEvent and puts it into an ErrorEvent.
setErrorHandler :: XErrorHandler -> IO () Source #
A binding to XSetErrorHandler. NOTE: This is pretty experimental because of safe vs. unsafe calls. I changed sync to a safe call, but there *might* be other calls that cause a problem
urgencyHintBit :: Int Source #
stateHintBit :: Int Source #
inputHintBit :: Int Source #
iconicState :: Int Source #
normalState :: Int Source #
withdrawnState :: Int Source #
setClassHint :: Display -> Window -> ClassHint -> IO () Source #
Set the WM_CLASS property for the given window.
pWinGravityBit :: Int Source #
pBaseSizeBit :: Int Source #
pAspectBit :: Int Source #
pResizeIncBit :: Int Source #
pMaxSizeBit :: Int Source #
pMinSizeBit :: Int Source #
refreshKeyboardMapping :: Event -> IO () Source #
refreshKeyboardMapping. TODO Remove this binding when the fix has been commited to X11
setKeyEvent :: XEventPtr -> Window -> Window -> Window -> KeyMask -> KeyCode -> Bool -> IO () Source #
setConfigureEvent :: XEventPtr -> Window -> Window -> CInt -> CInt -> CInt -> CInt -> CInt -> Window -> Bool -> IO () Source #
getWMProtocols :: Display -> Window -> IO [Atom] Source #
The XGetWMProtocols function returns the list of atoms stored in the WM_PROTOCOLS property on the specified window. These atoms describe window manager protocols in which the owner of this window is willing to participate. If the property exists, is of type ATOM, is of format 32, and the atom WM_PROTOCOLS can be interned, XGetWMProtocols sets the protocols_return argument to a list of atoms, sets the count_return argument to the number of elements in the list, and returns a nonzero status. Otherwise, it sets neither of the return arguments and returns a zero status. To release the list of atoms, use XFree.
wcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO () Source #
wcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO () Source #
wcTextPropertyToTextList :: Display -> TextProperty -> IO [String] Source #
getTextProperty :: Display -> Window -> Atom -> IO TextProperty Source #
getWindowAttributes :: Display -> Window -> IO WindowAttributes Source #
waIsViewable :: CInt Source #
waIsUnmapped :: CInt Source #
configureWindow :: Display -> Window -> CULong -> WindowChanges -> IO () Source #
currentTime :: Time Source #
eventTable :: [(EventType, String)] Source #
xConfigureWindow :: Display -> Window -> CULong -> Ptr WindowChanges -> IO CInt Source #
xQueryTree :: Display -> Window -> Ptr Window -> Ptr Window -> Ptr (Ptr Window) -> Ptr CInt -> IO Status Source #
xGetWindowAttributes :: Display -> Window -> Ptr WindowAttributes -> IO Status Source #
changeWindowAttributes :: Display -> Window -> AttributeMask -> Ptr SetWindowAttributes -> IO () Source #
interface to the X11 library function XChangeWindowAttributes().
xGetTextProperty :: Display -> Window -> Ptr TextProperty -> Atom -> IO Status Source #
xwcTextPropertyToTextList :: Display -> Ptr TextProperty -> Ptr (Ptr CWString) -> Ptr CInt -> IO CInt Source #
xCreateFontSet :: Display -> CString -> Ptr (Ptr CString) -> Ptr CInt -> Ptr CString -> IO (Ptr FontSet) Source #
xwcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO () Source #
xwcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO () Source #
xSetErrorHandler :: IO () Source #
xChangeProperty :: Display -> Window -> Atom -> Atom -> CInt -> CInt -> Ptr CUChar -> CInt -> IO Status Source #
xGetWindowProperty :: Display -> Window -> Atom -> CLong -> CLong -> Bool -> Atom -> Ptr Atom -> Ptr CInt -> Ptr CULong -> Ptr CULong -> Ptr (Ptr CUChar) -> IO Status Source #
isCursorKey :: KeySym -> Bool Source #
isFunctionKey :: KeySym -> Bool Source #
isKeypadKey :: KeySym -> Bool Source #
isMiscFunctionKey :: KeySym -> Bool Source #
isModifierKey :: KeySym -> Bool Source #
isPrivateKeypadKey :: KeySym -> Bool Source #
Constructors
data WindowChanges Source #
Constructors
| WindowChanges | |
Fields
| |
Instances
| Storable WindowChanges | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: WindowChanges -> Int # alignment :: WindowChanges -> Int # peekElemOff :: Ptr WindowChanges -> Int -> IO WindowChanges # pokeElemOff :: Ptr WindowChanges -> Int -> WindowChanges -> IO () # peekByteOff :: Ptr b -> Int -> IO WindowChanges # pokeByteOff :: Ptr b -> Int -> WindowChanges -> IO () # peek :: Ptr WindowChanges -> IO WindowChanges # poke :: Ptr WindowChanges -> WindowChanges -> IO () # | |
data WindowAttributes Source #
Constructors
| WindowAttributes | |
Fields
| |
Instances
| Storable WindowAttributes | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: WindowAttributes -> Int # alignment :: WindowAttributes -> Int # peekElemOff :: Ptr WindowAttributes -> Int -> IO WindowAttributes # pokeElemOff :: Ptr WindowAttributes -> Int -> WindowAttributes -> IO () # peekByteOff :: Ptr b -> Int -> IO WindowAttributes # pokeByteOff :: Ptr b -> Int -> WindowAttributes -> IO () # peek :: Ptr WindowAttributes -> IO WindowAttributes # poke :: Ptr WindowAttributes -> WindowAttributes -> IO () # | |
data TextProperty Source #
Constructors
| TextProperty | |
Instances
| Storable TextProperty | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: TextProperty -> Int # alignment :: TextProperty -> Int # peekElemOff :: Ptr TextProperty -> Int -> IO TextProperty # pokeElemOff :: Ptr TextProperty -> Int -> TextProperty -> IO () # peekByteOff :: Ptr b -> Int -> IO TextProperty # pokeByteOff :: Ptr b -> Int -> TextProperty -> IO () # peek :: Ptr TextProperty -> IO TextProperty # poke :: Ptr TextProperty -> TextProperty -> IO () # | |
Constructors
| SizeHints | |
Fields
| |
Instances
| Storable SizeHints | |
Defined in Graphics.X11.Xlib.Extras | |
Constructors
| WMHints | |
Fields
| |
Instances
type XErrorEventPtr = Ptr () Source #
type CXErrorHandler = Display -> XErrorEventPtr -> IO CInt Source #
type XErrorHandler = Display -> XErrorEventPtr -> IO () Source #
data ErrorEvent Source #
Constructors
| ErrorEvent | |
Fields
| |
restackWindows :: Display -> [Window] -> IO () Source #
interface to the X11 library function XRestackWindows().
withdrawWindow :: Display -> Window -> ScreenNumber -> IO () Source #
interface to the X11 library function XWithdrawWindow().
iconifyWindow :: Display -> Window -> ScreenNumber -> IO () Source #
interface to the X11 library function XIconifyWindow().
translateCoordinates :: Display -> Window -> Window -> Position -> Position -> IO (Bool, Position, Position, Window) Source #
interface to the X11 library function XTranslateCoordinates().
storeName :: Display -> Window -> String -> IO () Source #
interface to the X11 library function XStoreName().
createSimpleWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> CInt -> Pixel -> Pixel -> IO Window Source #
interface to the X11 library function XCreateSimpleWindow().
createWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> CInt -> CInt -> WindowClass -> Visual -> AttributeMask -> Ptr SetWindowAttributes -> IO Window Source #
interface to the X11 library function XCreateWindow().
moveResizeWindow :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> IO () Source #
interface to the X11 library function XMoveResizeWindow().
resizeWindow :: Display -> Window -> Dimension -> Dimension -> IO () Source #
interface to the X11 library function XResizeWindow().
moveWindow :: Display -> Window -> Position -> Position -> IO () Source #
interface to the X11 library function XMoveWindow().
reparentWindow :: Display -> Window -> Window -> Position -> Position -> IO () Source #
interface to the X11 library function XReparentWindow().
mapSubwindows :: Display -> Window -> IO () Source #
interface to the X11 library function XMapSubwindows().
unmapSubwindows :: Display -> Window -> IO () Source #
interface to the X11 library function XUnmapSubwindows().
lowerWindow :: Display -> Window -> IO () Source #
interface to the X11 library function XLowerWindow().
raiseWindow :: Display -> Window -> IO () Source #
interface to the X11 library function XRaiseWindow().
circulateSubwindowsDown :: Display -> Window -> IO () Source #
interface to the X11 library function XCirculateSubwindowsDown().
circulateSubwindowsUp :: Display -> Window -> IO () Source #
interface to the X11 library function XCirculateSubwindowsUp().
circulateSubwindows :: Display -> Window -> CirculationDirection -> IO () Source #
interface to the X11 library function XCirculateSubwindows().
destroyWindow :: Display -> Window -> IO () Source #
interface to the X11 library function XDestroyWindow().
destroySubwindows :: Display -> Window -> IO () Source #
interface to the X11 library function XDestroySubwindows().
setWindowBorder :: Display -> Window -> Pixel -> IO () Source #
interface to the X11 library function XSetWindowBorder().
setWindowBorderPixmap :: Display -> Window -> Pixmap -> IO () Source #
interface to the X11 library function XSetWindowBorderPixmap().
setWindowBorderWidth :: Display -> Window -> Dimension -> IO () Source #
interface to the X11 library function XSetWindowBorderWidth().
setWindowBackground :: Display -> Window -> Pixel -> IO () Source #
interface to the X11 library function XSetWindowBackground().
setWindowBackgroundPixmap :: Display -> Window -> Pixmap -> IO () Source #
interface to the X11 library function XSetWindowBackgroundPixmap().
setWindowColormap :: Display -> Window -> Colormap -> IO () Source #
interface to the X11 library function XSetWindowColormap().
addToSaveSet :: Display -> Window -> IO () Source #
interface to the X11 library function XAddToSaveSet().
removeFromSaveSet :: Display -> Window -> IO () Source #
interface to the X11 library function XRemoveFromSaveSet().
changeSaveSet :: Display -> Window -> ChangeSaveSetMode -> IO () Source #
interface to the X11 library function XChangeSaveSet().
clearWindow :: Display -> Window -> IO () Source #
interface to the X11 library function XClearWindow().
clearArea :: Display -> Window -> Position -> Position -> Dimension -> Dimension -> Bool -> IO () Source #
interface to the X11 library function XClearArea().
setTextProperty :: Display -> Window -> String -> Atom -> IO () Source #
interface to the X11 library function XSetTextProperty().
rotateBuffers :: Display -> CInt -> IO () Source #
interface to the X11 library function XRotateBuffers().
fetchBuffer :: Display -> CInt -> IO String Source #
interface to the X11 library function XFetchBuffer().
storeBytes :: Display -> String -> IO () Source #
interface to the X11 library function XStoreBytes().
storeBuffer :: Display -> String -> CInt -> IO () Source #
interface to the X11 library function XStoreBuffer().
drawImageString :: Display -> Drawable -> GC -> Position -> Position -> String -> IO () Source #
interface to the X11 library function XDrawImageString().
drawString :: Display -> Drawable -> GC -> Position -> Position -> String -> IO () Source #
interface to the X11 library function XDrawString().
fillArcs :: Display -> Drawable -> GC -> [Arc] -> IO () Source #
interface to the X11 library function XFillArcs().
fillPolygon :: Display -> Drawable -> GC -> [Point] -> PolygonShape -> CoordinateMode -> IO () Source #
interface to the X11 library function XFillPolygon().
fillRectangles :: Display -> Drawable -> GC -> [Rectangle] -> IO () Source #
interface to the X11 library function XFillRectangles().
drawArcs :: Display -> Drawable -> GC -> [Arc] -> IO () Source #
interface to the X11 library function XDrawArcs().
drawRectangles :: Display -> Drawable -> GC -> [Rectangle] -> IO () Source #
interface to the X11 library function XDrawRectangles().
drawSegments :: Display -> Drawable -> GC -> [Segment] -> IO () Source #
interface to the X11 library function XDrawSegments().
drawLines :: Display -> Drawable -> GC -> [Point] -> CoordinateMode -> IO () Source #
interface to the X11 library function XDrawLines().
drawPoints :: Display -> Drawable -> GC -> [Point] -> CoordinateMode -> IO () Source #
interface to the X11 library function XDrawPoints().
set_cursor :: Ptr SetWindowAttributes -> Cursor -> IO () Source #
set_colormap :: Ptr SetWindowAttributes -> Colormap -> IO () Source #
set_override_redirect :: Ptr SetWindowAttributes -> Bool -> IO () Source #
set_do_not_propagate_mask :: Ptr SetWindowAttributes -> EventMask -> IO () Source #
set_event_mask :: Ptr SetWindowAttributes -> EventMask -> IO () Source #
set_save_under :: Ptr SetWindowAttributes -> Bool -> IO () Source #
set_backing_pixel :: Ptr SetWindowAttributes -> Pixel -> IO () Source #
set_backing_planes :: Ptr SetWindowAttributes -> Pixel -> IO () Source #
set_backing_store :: Ptr SetWindowAttributes -> BackingStore -> IO () Source #
set_win_gravity :: Ptr SetWindowAttributes -> WindowGravity -> IO () Source #
set_bit_gravity :: Ptr SetWindowAttributes -> BitGravity -> IO () Source #
set_border_pixel :: Ptr SetWindowAttributes -> Pixel -> IO () Source #
set_border_pixmap :: Ptr SetWindowAttributes -> Pixmap -> IO () Source #
set_background_pixel :: Ptr SetWindowAttributes -> Pixel -> IO () Source #
set_background_pixmap :: Ptr SetWindowAttributes -> Pixmap -> IO () Source #
allocaSetWindowAttributes :: (Ptr SetWindowAttributes -> IO a) -> IO a Source #
setWMProtocols :: Display -> Window -> [Atom] -> IO () Source #
interface to the X11 library function XSetWMProtocols().
recolorCursor :: Display -> Cursor -> Color -> Color -> IO () Source #
interface to the X11 library function XRecolorCursor().
createGlyphCursor :: Display -> Font -> Font -> Glyph -> Glyph -> Color -> Color -> IO Cursor Source #
interface to the X11 library function XCreateGlyphCursor().
createPixmapCursor :: Display -> Pixmap -> Pixmap -> Color -> Color -> Dimension -> Dimension -> IO Cursor Source #
interface to the X11 library function XCreatePixmapCursor().
setIconName :: Display -> Window -> String -> IO () Source #
interface to the X11 library function XSetIconName().
getIconName :: Display -> Window -> IO String Source #
interface to the X11 library function XGetIconName().
lookupString :: XKeyEventPtr -> IO (Maybe KeySym, String) Source #
interface to the X11 library function XLookupString().
stringToKeysym :: String -> KeySym Source #
interface to the X11 library function XStringToKeysym().
keysymToString :: KeySym -> String Source #
interface to the X11 library function XKeysymToString().
displayKeycodes :: Display -> (CInt, CInt) Source #
interface to the X11 library function XDisplayKeycodes().
readBitmapFile :: Display -> Drawable -> String -> IO (Either String (Dimension, Dimension, Pixmap, Maybe CInt, Maybe CInt)) Source #
interface to the X11 library function XReadBitmapFile.
matchVisualInfo :: Display -> ScreenNumber -> CInt -> CInt -> IO (Maybe VisualInfo) Source #
interface to the X11 library function XMatchVisualInfo()
getVisualInfo :: Display -> VisualInfoMask -> VisualInfo -> IO [VisualInfo] Source #
visualBlueMaskMask :: VisualInfoMask Source #
interface to the X11 library function XGetVisualInfo()
getPointerControl :: Display -> IO (CInt, CInt, CInt) Source #
interface to the X11 library function XGetPointerControl().
getScreenSaver :: Display -> IO (CInt, CInt, PreferBlankingMode, AllowExposuresMode) Source #
setLocaleModifiers :: String -> IO String Source #
interface to the X11 library function XSetLocaleModifiers().
getGeometry :: Display -> Drawable -> IO (Window, Position, Position, Dimension, Dimension, Dimension, CInt) Source #
interface to the X11 library function XGetGeometry().
geometry :: Display -> CInt -> String -> String -> Dimension -> Dimension -> Dimension -> CInt -> CInt -> IO (CInt, Position, Position, Dimension, Dimension) Source #
interface to the X11 library function XGeometry().
setDefaultErrorHandler :: IO () Source #
The Xlib library reports most errors by invoking a user-provided error handler. This function installs an error handler that prints a textual representation of the error.
displayName :: String -> String Source #
interface to the X11 library function XDisplayName().
queryPointer :: Display -> Window -> IO (Bool, Window, Window, CInt, CInt, CInt, CInt, Modifier) Source #
interface to the X11 library function XQueryPointer().
queryBestSize :: Display -> QueryBestSizeClass -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension) Source #
interface to the X11 library function XQueryBestSize().
queryBestCursor :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension) Source #
interface to the X11 library function XQueryBestCursor().
queryBestStipple :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension) Source #
interface to the X11 library function XQueryBestStipple().
queryBestTile :: Display -> Drawable -> Dimension -> Dimension -> IO (Dimension, Dimension) Source #
interface to the X11 library function XQueryBestTile().
getInputFocus :: Display -> IO (Window, FocusMode) Source #
interface to the X11 library function XGetInputFocus().
rmInitialize :: IO () Source #
interface to the X11 library function XrmInitialize().
autoRepeatOff :: Display -> IO () Source #
interface to the X11 library function XAutoRepeatOff().
autoRepeatOn :: Display -> IO () Source #
interface to the X11 library function XAutoRepeatOn().
setCloseDownMode :: Display -> CloseDownMode -> IO () Source #
interface to the X11 library function XSetCloseDownMode().
lastKnownRequestProcessed :: Display -> IO CInt Source #
interface to the X11 library function XLastKnownRequestProcessed().
setInputFocus :: Display -> Window -> FocusMode -> Time -> IO () Source #
interface to the X11 library function XSetInputFocus().
grabButton :: Display -> Button -> ButtonMask -> Window -> Bool -> EventMask -> GrabMode -> GrabMode -> Window -> Cursor -> IO () Source #
interface to the X11 library function XGrabButton().
ungrabButton :: Display -> Button -> ButtonMask -> Window -> IO () Source #
interface to the X11 library function XUngrabButton().
grabPointer :: Display -> Window -> Bool -> EventMask -> GrabMode -> GrabMode -> Window -> Cursor -> Time -> IO GrabStatus Source #
interface to the X11 library function XGrabPointer().
ungrabPointer :: Display -> Time -> IO () Source #
interface to the X11 library function XUngrabPointer().
grabKey :: Display -> KeyCode -> KeyMask -> Window -> Bool -> GrabMode -> GrabMode -> IO () Source #
interface to the X11 library function XGrabKey().
ungrabKey :: Display -> KeyCode -> KeyMask -> Window -> IO () Source #
interface to the X11 library function XUngrabKey().
grabKeyboard :: Display -> Window -> Bool -> GrabMode -> GrabMode -> Time -> IO GrabStatus Source #
interface to the X11 library function XGrabKeyboard().
ungrabKeyboard :: Display -> Time -> IO () Source #
interface to the X11 library function XUngrabKeyboard().
grabServer :: Display -> IO () Source #
interface to the X11 library function XGrabServer().
ungrabServer :: Display -> IO () Source #
interface to the X11 library function XUngrabServer().
supportsLocale :: IO Bool Source #
interface to the X11 library function XSupportsLocale().
setScreenSaver :: Display -> CInt -> CInt -> PreferBlankingMode -> AllowExposuresMode -> IO () Source #
interface to the X11 library function XSetScreenSaver().
activateScreenSaver :: Display -> IO () Source #
interface to the X11 library function XActivateScreenSaver().
resetScreenSaver :: Display -> IO () Source #
interface to the X11 library function XResetScreenSaver().
forceScreenSaver :: Display -> ScreenSaverMode -> IO () Source #
interface to the X11 library function XForceScreenSaver().
warpPointer :: Display -> Window -> Window -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> IO () Source #
interface to the X11 library function XWarpPointer().
initThreads :: IO Status Source #
lockDisplay :: Display -> IO () Source #
unlockDisplay :: Display -> IO () Source #
createPixmap :: Display -> Drawable -> Dimension -> Dimension -> CInt -> IO Pixmap Source #
interface to the X11 library function XCreatePixmap().
freePixmap :: Display -> Pixmap -> IO () Source #
interface to the X11 library function XFreePixmap().
bitmapBitOrder :: Display -> ByteOrder Source #
interface to the X11 library function XBitmapBitOrder().
bitmapUnit :: Display -> CInt Source #
interface to the X11 library function XBitmapUnit().
lookupKeysym :: XKeyEventPtr -> CInt -> IO KeySym Source #
interface to the X11 library function XLookupKeysym().
keycodeToKeysym :: Display -> KeyCode -> CInt -> IO KeySym Source #
interface to the X11 library function XKeycodeToKeysym().
keysymToKeycode :: Display -> KeySym -> IO KeyCode Source #
interface to the X11 library function XKeysymToKeycode().
defineCursor :: Display -> Window -> Cursor -> IO () Source #
interface to the X11 library function XDefineCursor().
undefineCursor :: Display -> Window -> IO () Source #
interface to the X11 library function XUndefineCursor().
createFontCursor :: Display -> Glyph -> IO Cursor Source #
interface to the X11 library function XCreateFontCursor().
drawPoint :: Display -> Drawable -> GC -> Position -> Position -> IO () Source #
interface to the X11 library function XDrawPoint().
drawLine :: Display -> Drawable -> GC -> Position -> Position -> Position -> Position -> IO () Source #
interface to the X11 library function XDrawLine().
drawRectangle :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> IO () Source #
interface to the X11 library function XDrawRectangle().
drawArc :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Angle -> Angle -> IO () Source #
interface to the X11 library function XDrawArc().
fillRectangle :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> IO () Source #
interface to the X11 library function XFillRectangle().
fillArc :: Display -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Angle -> Angle -> IO () Source #
interface to the X11 library function XFillArc().
copyArea :: Display -> Drawable -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> IO () Source #
interface to the X11 library function XCopyArea().
copyPlane :: Display -> Drawable -> Drawable -> GC -> Position -> Position -> Dimension -> Dimension -> Position -> Position -> Pixel -> IO () Source #
interface to the X11 library function XCopyPlane().
type AllowExposuresMode = CInt Source #
type PreferBlankingMode = CInt Source #
type ScreenSaverMode = CInt Source #
type VisualInfoMask = CLong Source #
cAP_HEIGHT :: Atom Source #
fAMILY_NAME :: Atom Source #
rESOLUTION :: Atom Source #
pOINT_SIZE :: Atom Source #
qUAD_WIDTH :: Atom Source #
iTALIC_ANGLE :: Atom Source #
sUBSCRIPT_Y :: Atom Source #
sUBSCRIPT_X :: Atom Source #
sUPERSCRIPT_Y :: Atom Source #
sUPERSCRIPT_X :: Atom Source #
nORM_SPACE :: Atom Source #
wM_ZOOM_HINTS :: Atom Source #
wM_SIZE_HINTS :: Atom Source #
wM_ICON_SIZE :: Atom Source #
wM_ICON_NAME :: Atom Source #
wM_COMMAND :: Atom Source #
rGB_RED_MAP :: Atom Source #
rGB_GREEN_MAP :: Atom Source #
rGB_GRAY_MAP :: Atom Source #
rGB_BLUE_MAP :: Atom Source #
rGB_BEST_MAP :: Atom Source #
rGB_COLOR_MAP :: Atom Source #
cUT_BUFFER7 :: Atom Source #
cUT_BUFFER6 :: Atom Source #
cUT_BUFFER5 :: Atom Source #
cUT_BUFFER4 :: Atom Source #
cUT_BUFFER3 :: Atom Source #
cUT_BUFFER2 :: Atom Source #
cUT_BUFFER1 :: Atom Source #
cUT_BUFFER0 :: Atom Source #
internAtom :: Display -> String -> Bool -> IO Atom Source #
interface to the X11 library function XInternAtom().
queryColors :: Display -> Colormap -> [Color] -> IO [Color] Source #
interface to the X11 library function XQueryColors().
queryColor :: Display -> Colormap -> Color -> IO Color Source #
interface to the X11 library function XQueryColor().
storeColor :: Display -> Colormap -> Color -> IO () Source #
interface to the X11 library function XStoreColor().
freeColors :: Display -> Colormap -> [Pixel] -> Pixel -> IO () Source #
interface to the X11 library function XFreeColors().
parseColor :: Display -> Colormap -> String -> IO Color Source #
interface to the X11 library function XParseColor().
allocColor :: Display -> Colormap -> Color -> IO Color Source #
interface to the X11 library function XAllocColor().
allocNamedColor :: Display -> Colormap -> String -> IO (Color, Color) Source #
interface to the X11 library function XAllocNamedColor().
lookupColor :: Display -> Colormap -> String -> IO (Color, Color) Source #
interface to the X11 library function XLookupColor().
installColormap :: Display -> Colormap -> IO () Source #
interface to the X11 library function XInstallColormap().
uninstallColormap :: Display -> Colormap -> IO () Source #
interface to the X11 library function XUninstallColormap().
copyColormapAndFree :: Display -> Colormap -> IO Colormap Source #
interface to the X11 library function XCopyColormapAndFree().
createColormap :: Display -> Window -> Visual -> ColormapAlloc -> IO Colormap Source #
interface to the X11 library function XCreateColormap().
freeColormap :: Display -> Colormap -> IO () Source #
interface to the X11 library function XFreeColormap().
createGC :: Display -> Drawable -> IO GC Source #
partial interface to the X11 library function XCreateGC().
setDashes :: Display -> GC -> CInt -> String -> CInt -> IO () Source #
interface to the X11 library function XSetDashes().
setArcMode :: Display -> GC -> ArcMode -> IO () Source #
interface to the X11 library function XSetArcMode().
setBackground :: Display -> GC -> Pixel -> IO () Source #
interface to the X11 library function XSetBackground().
setForeground :: Display -> GC -> Pixel -> IO () Source #
interface to the X11 library function XSetForeground().
setFunction :: Display -> GC -> GXFunction -> IO () Source #
interface to the X11 library function XSetFunction().
setGraphicsExposures :: Display -> GC -> Bool -> IO () Source #
interface to the X11 library function XSetGraphicsExposures().
setClipMask :: Display -> GC -> Pixmap -> IO () Source #
interface to the X11 library function XSetClipMask().
setClipOrigin :: Display -> GC -> Position -> Position -> IO () Source #
interface to the X11 library function XSetClipOrigin().
setFillRule :: Display -> GC -> FillRule -> IO () Source #
interface to the X11 library function XSetFillRule().
setFillStyle :: Display -> GC -> FillStyle -> IO () Source #
interface to the X11 library function XSetFillStyle().
setLineAttributes :: Display -> GC -> CInt -> LineStyle -> CapStyle -> JoinStyle -> IO () Source #
interface to the X11 library function XSetLineAttributes().
setPlaneMask :: Display -> GC -> Pixel -> IO () Source #
interface to the X11 library function XSetPlaneMask().
setState :: Display -> GC -> Pixel -> Pixel -> GXFunction -> Pixel -> IO () Source #
interface to the X11 library function XSetState().
setStipple :: Display -> GC -> Pixmap -> IO () Source #
interface to the X11 library function XSetStipple().
setSubwindowMode :: Display -> GC -> SubWindowMode -> IO () Source #
interface to the X11 library function XSetSubwindowMode().
setTSOrigin :: Display -> GC -> Position -> Position -> IO () Source #
interface to the X11 library function XSetTSOrigin().
setTile :: Display -> GC -> Pixmap -> IO () Source #
interface to the X11 library function XSetTile().
gContextFromGC :: GC -> GContext Source #
interface to the X11 library function XGContextFromGC().
copyGC :: Display -> GC -> Mask -> GC -> IO () Source #
interface to the X11 library function XCopyGC().
sendEvent :: Display -> Window -> Bool -> EventMask -> XEventPtr -> IO () Source #
interface to the X11 library function XSendEvent().
gettimeofday_in_milliseconds :: IO Integer Source #
This function is somewhat compatible with Win32's TimeGetTime()
waitForEvent :: Display -> Word32 -> IO Bool Source #
Reads an event with a timeout (in microseconds). Returns True if timeout occurs.
asKeyEvent :: XEventPtr -> XKeyEventPtr Source #
eventsQueued :: Display -> QueuedMode -> IO CInt Source #
interface to the X11 library function XEventsQueued().
nextEvent :: Display -> XEventPtr -> IO () Source #
interface to the X11 library function XNextEvent().
allowEvents :: Display -> AllowEvents -> Time -> IO () Source #
interface to the X11 library function XAllowEvents().
selectInput :: Display -> Window -> EventMask -> IO () Source #
interface to the X11 library function XSelectInput().
windowEvent :: Display -> Window -> EventMask -> XEventPtr -> IO () Source #
interface to the X11 library function XWindowEvent().
checkWindowEvent :: Display -> Window -> EventMask -> XEventPtr -> IO Bool Source #
interface to the X11 library function XCheckWindowEvent().
maskEvent :: Display -> EventMask -> XEventPtr -> IO () Source #
interface to the X11 library function XMaskEvent().
checkMaskEvent :: Display -> EventMask -> XEventPtr -> IO Bool Source #
interface to the X11 library function XCheckMaskEvent().
checkTypedEvent :: Display -> EventType -> XEventPtr -> IO Bool Source #
interface to the X11 library function XCheckTypedEvent().
checkTypedWindowEvent :: Display -> Window -> EventType -> XEventPtr -> IO Bool Source #
interface to the X11 library function XCheckTypedWindowEvent().
putBackEvent :: Display -> XEventPtr -> IO () Source #
interface to the X11 library function XPutBackEvent().
peekEvent :: Display -> XEventPtr -> IO () Source #
interface to the X11 library function XPeekEvent().
type QueuedMode = CInt Source #
Instances
| Eq XEvent | |
| Data XEvent | |
Defined in Graphics.X11.Xlib.Event Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> XEvent -> c XEvent # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c XEvent # toConstr :: XEvent -> Constr # dataTypeOf :: XEvent -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c XEvent) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c XEvent) # gmapT :: (forall b. Data b => b -> b) -> XEvent -> XEvent # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> XEvent -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> XEvent -> r # gmapQ :: (forall d. Data d => d -> u) -> XEvent -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> XEvent -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> XEvent -> m XEvent # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> XEvent -> m XEvent # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> XEvent -> m XEvent # | |
| Ord XEvent | |
| Show XEvent | |
type XKeyEventPtr = Ptr XKeyEvent Source #
type XMotionEvent = (Window, Window, Time, CInt, CInt, CInt, CInt, Modifier, NotifyMode, Bool) Source #
type XMappingEvent = (MappingRequest, KeyCode, CInt) Source #
serverVendor :: Display -> String Source #
interface to the X11 library function XServerVendor().
displayString :: Display -> String Source #
interface to the X11 library function XDisplayString().
screenResourceString :: Screen -> String Source #
interface to the X11 library function XScreenResourceString().
resourceManagerString :: Display -> String Source #
interface to the X11 library function XResourceManagerString().
allPlanes_aux :: Pixel Source #
interface to the X11 library function XAllPlanes().
blackPixel :: Display -> ScreenNumber -> Pixel Source #
interface to the X11 library function XBlackPixel().
whitePixel :: Display -> ScreenNumber -> Pixel Source #
interface to the X11 library function XWhitePixel().
connectionNumber :: Display -> CInt Source #
interface to the X11 library function XConnectionNumber().
defaultColormap :: Display -> ScreenNumber -> Colormap Source #
interface to the X11 library function XDefaultColormap().
defaultGC :: Display -> ScreenNumber -> GC Source #
interface to the X11 library function XDefaultGC().
defaultDepth :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDefaultDepth().
defaultScreen :: Display -> ScreenNumber Source #
interface to the X11 library function XDefaultScreen().
defaultScreenOfDisplay :: Display -> Screen Source #
interface to the X11 library function XDefaultScreenOfDisplay().
displayHeight :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayHeight().
displayHeightMM :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayHeightMM().
displayWidth :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayWidth().
displayWidthMM :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayWidthMM().
maxRequestSize :: Display -> CInt Source #
interface to the X11 library function XMaxRequestSize().
displayMotionBufferSize :: Display -> CInt Source #
interface to the X11 library function XDisplayMotionBufferSize().
imageByteOrder :: Display -> CInt Source #
interface to the X11 library function XImageByteOrder().
protocolRevision :: Display -> CInt Source #
interface to the X11 library function XProtocolRevision().
protocolVersion :: Display -> CInt Source #
interface to the X11 library function XProtocolVersion().
screenCount :: Display -> CInt Source #
interface to the X11 library function XScreenCount().
defaultVisual :: Display -> ScreenNumber -> Visual Source #
interface to the X11 library function XDefaultVisual().
displayCells :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayCells().
displayPlanes :: Display -> ScreenNumber -> CInt Source #
interface to the X11 library function XDisplayPlanes().
screenOfDisplay :: Display -> ScreenNumber -> Screen Source #
interface to the X11 library function XScreenOfDisplay().
defaultRootWindow :: Display -> Window Source #
interface to the X11 library function XDefaultRootWindow().
rootWindow :: Display -> ScreenNumber -> IO Window Source #
interface to the X11 library function XRootWindow().
closeDisplay :: Display -> IO () Source #
interface to the X11 library function XCloseDisplay().
xC_ur_angle :: Glyph Source #
xC_umbrella :: Glyph Source #
xC_ul_angle :: Glyph Source #
xC_top_tee :: Glyph Source #
xC_top_side :: Glyph Source #
xC_spraycan :: Glyph Source #
xC_shuttle :: Glyph Source #
xC_sailboat :: Glyph Source #
xC_rtl_logo :: Glyph Source #
xC_right_tee :: Glyph Source #
xC_right_ptr :: Glyph Source #
xC_lr_angle :: Glyph Source #
xC_ll_angle :: Glyph Source #
xC_left_tee :: Glyph Source #
xC_left_side :: Glyph Source #
xC_left_ptr :: Glyph Source #
xC_gobbler :: Glyph Source #
xC_exchange :: Glyph Source #
xC_crosshair :: Glyph Source #
xC_bogosity :: Glyph Source #
xC_X_cursor :: Glyph Source #
textWidth :: FontStruct -> String -> Int32 Source #
interface to the X11 library function XTextWidth().
textExtents :: FontStruct -> String -> (FontDirection, Int32, Int32, CharStruct) Source #
interface to the X11 library function XTextExtents().
fontFromFontStruct :: FontStruct -> Font Source #
loadQueryFont :: Display -> String -> IO FontStruct Source #
interface to the X11 library function XLoadQueryFont().
fontFromGC :: Display -> GC -> IO Font Source #
interface to the X11 library function XGetGCValues().
queryFont :: Display -> Font -> IO FontStruct Source #
interface to the X11 library function XQueryFont().
freeFont :: Display -> FontStruct -> IO () Source #
interface to the X11 library function XFreeFont().
data FontStruct Source #
pointer to an X11 XFontStruct structure
Instances
| Eq FontStruct | |
Defined in Graphics.X11.Xlib.Font | |
| Data FontStruct | |
Defined in Graphics.X11.Xlib.Font Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> FontStruct -> c FontStruct # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c FontStruct # toConstr :: FontStruct -> Constr # dataTypeOf :: FontStruct -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c FontStruct) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c FontStruct) # gmapT :: (forall b. Data b => b -> b) -> FontStruct -> FontStruct # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> FontStruct -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> FontStruct -> r # gmapQ :: (forall d. Data d => d -> u) -> FontStruct -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> FontStruct -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> FontStruct -> m FontStruct # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> FontStruct -> m FontStruct # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> FontStruct -> m FontStruct # | |
| Ord FontStruct | |
Defined in Graphics.X11.Xlib.Font Methods compare :: FontStruct -> FontStruct -> Ordering # (<) :: FontStruct -> FontStruct -> Bool # (<=) :: FontStruct -> FontStruct -> Bool # (>) :: FontStruct -> FontStruct -> Bool # (>=) :: FontStruct -> FontStruct -> Bool # max :: FontStruct -> FontStruct -> FontStruct # min :: FontStruct -> FontStruct -> FontStruct # | |
| Show FontStruct | |
Defined in Graphics.X11.Xlib.Font Methods showsPrec :: Int -> FontStruct -> ShowS # show :: FontStruct -> String # showList :: [FontStruct] -> ShowS # | |
getPixel :: Image -> CInt -> CInt -> CULong Source #
interface to the X11 library function XGetPixel().
getImage :: Display -> Drawable -> CInt -> CInt -> CUInt -> CUInt -> CULong -> ImageFormat -> IO Image Source #
interface to the X11 library function XGetImage().
createImage :: Display -> Visual -> CInt -> ImageFormat -> CInt -> Ptr CChar -> Dimension -> Dimension -> CInt -> CInt -> IO Image Source #
interface to the X11 library function XCreateImage().
putImage :: Display -> Drawable -> GC -> Image -> Position -> Position -> Position -> Position -> Dimension -> Dimension -> IO () Source #
interface to the X11 library function XPutImage().
destroyImage :: Image -> IO () Source #
interface to the X11 library function XDestroyImage().
setRegion :: Display -> GC -> Region -> IO CInt Source #
interface to the X11 library function XSetRegion().
shrinkRegion :: Region -> Point -> IO CInt Source #
interface to the X11 library function XShrinkRegion().
offsetRegion :: Region -> Point -> IO CInt Source #
interface to the X11 library function XOffsetRegion().
rectInRegion :: Region -> Rectangle -> IO RectInRegionResult Source #
interface to the X11 library function XRectInRegion().
pointInRegion :: Region -> Point -> IO Bool Source #
interface to the X11 library function XPointInRegion().
equalRegion :: Region -> Region -> IO Bool Source #
interface to the X11 library function XEqualRegion().
xorRegion :: Region -> Region -> Region -> IO CInt Source #
interface to the X11 library function XXorRegion().
unionRegion :: Region -> Region -> Region -> IO CInt Source #
interface to the X11 library function XUnionRegion().
unionRectWithRegion :: Rectangle -> Region -> Region -> IO CInt Source #
interface to the X11 library function XUnionRectWithRegion().
subtractRegion :: Region -> Region -> Region -> IO CInt Source #
interface to the X11 library function XSubtractRegion().
intersectRegion :: Region -> Region -> Region -> IO CInt Source #
interface to the X11 library function XIntersectRegion().
polygonRegion :: [Point] -> FillRule -> IO Region Source #
interface to the X11 library function XPolygonRegion().
createRegion :: IO Region Source #
interface to the X11 library function XCreateRegion().
Instances
| Eq Region | |
| Data Region | |
Defined in Graphics.X11.Xlib.Region Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Region -> c Region # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Region # toConstr :: Region -> Constr # dataTypeOf :: Region -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Region) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Region) # gmapT :: (forall b. Data b => b -> b) -> Region -> Region # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Region -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Region -> r # gmapQ :: (forall d. Data d => d -> u) -> Region -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Region -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Region -> m Region # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Region -> m Region # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Region -> m Region # | |
| Ord Region | |
| Show Region | |
type RectInRegionResult = CInt Source #
blackPixelOfScreen :: Screen -> Pixel Source #
interface to the X11 library function XBlackPixelOfScreen().
whitePixelOfScreen :: Screen -> Pixel Source #
interface to the X11 library function XWhitePixelOfScreen().
cellsOfScreen :: Screen -> CInt Source #
interface to the X11 library function XCellsOfScreen().
defaultColormapOfScreen :: Screen -> Colormap Source #
interface to the X11 library function XDefaultColormapOfScreen().
defaultDepthOfScreen :: Screen -> CInt Source #
interface to the X11 library function XDefaultDepthOfScreen().
defaultGCOfScreen :: Screen -> GC Source #
interface to the X11 library function XDefaultGCOfScreen().
defaultVisualOfScreen :: Screen -> Visual Source #
interface to the X11 library function XDefaultVisualOfScreen().
doesBackingStore :: Screen -> Bool Source #
interface to the X11 library function XDoesBackingStore().
doesSaveUnders :: Screen -> Bool Source #
interface to the X11 library function XDoesSaveUnders().
displayOfScreen :: Screen -> Display Source #
interface to the X11 library function XDisplayOfScreen().
eventMaskOfScreen :: Screen -> EventMask Source #
interface to the X11 library function XEventMaskOfScreen().
Event mask at connection setup time - not current event mask!
minCmapsOfScreen :: Screen -> CInt Source #
interface to the X11 library function XMinCmapsOfScreen().
maxCmapsOfScreen :: Screen -> CInt Source #
interface to the X11 library function XMaxCmapsOfScreen().
rootWindowOfScreen :: Screen -> Window Source #
interface to the X11 library function XRootWindowOfScreen().
widthOfScreen :: Screen -> Dimension Source #
interface to the X11 library function XWidthOfScreen().
widthMMOfScreen :: Screen -> Dimension Source #
interface to the X11 library function XWidthMMOfScreen().
heightOfScreen :: Screen -> Dimension Source #
interface to the X11 library function XHeightOfScreen().
heightMMOfScreen :: Screen -> Dimension Source #
interface to the X11 library function XHeightMMOfScreen().
planesOfScreen :: Screen -> CInt Source #
interface to the X11 library function XPlanesOfScreen().
screenNumberOfScreen :: Screen -> ScreenNumber Source #
interface to the X11 library function XScreenNumberOfScreen().
pointer to an X11 Display structure
Instances
| Eq Display | |
| Data Display | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Display -> c Display # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Display # toConstr :: Display -> Constr # dataTypeOf :: Display -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Display) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Display) # gmapT :: (forall b. Data b => b -> b) -> Display -> Display # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Display -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Display -> r # gmapQ :: (forall d. Data d => d -> u) -> Display -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Display -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Display -> m Display # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Display -> m Display # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Display -> m Display # | |
| Ord Display | |
Defined in Graphics.X11.Xlib.Types | |
| Show Display | |
pointer to an X11 Screen structure
Instances
| Eq Screen | |
| Data Screen | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Screen -> c Screen # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Screen # toConstr :: Screen -> Constr # dataTypeOf :: Screen -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Screen) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Screen) # gmapT :: (forall b. Data b => b -> b) -> Screen -> Screen # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Screen -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Screen -> r # gmapQ :: (forall d. Data d => d -> u) -> Screen -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Screen -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Screen -> m Screen # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Screen -> m Screen # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Screen -> m Screen # | |
| Ord Screen | |
| Show Screen | |
| PPrint Screen Source # | |
pointer to an X11 Visual structure
Instances
| Eq Visual | |
| Data Visual | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Visual -> c Visual # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Visual # toConstr :: Visual -> Constr # dataTypeOf :: Visual -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Visual) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Visual) # gmapT :: (forall b. Data b => b -> b) -> Visual -> Visual # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Visual -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Visual -> r # gmapQ :: (forall d. Data d => d -> u) -> Visual -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Visual -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Visual -> m Visual # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Visual -> m Visual # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Visual -> m Visual # | |
| Ord Visual | |
| Show Visual | |
pointer to an X11 GC structure
Instances
| Eq GC | |
| Data GC | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> GC -> c GC # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c GC # dataTypeOf :: GC -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c GC) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c GC) # gmapT :: (forall b. Data b => b -> b) -> GC -> GC # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> GC -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> GC -> r # gmapQ :: (forall d. Data d => d -> u) -> GC -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> GC -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> GC -> m GC # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> GC -> m GC # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> GC -> m GC # | |
| Ord GC | |
| Show GC | |
data SetWindowAttributes Source #
pointer to an X11 XSetWindowAttributes structure
Instances
data VisualInfo Source #
counterpart of an X11 XVisualInfo structure
Constructors
| VisualInfo | |
Fields | |
Instances
| Eq VisualInfo | |
Defined in Graphics.X11.Xlib.Types | |
| Show VisualInfo | |
Defined in Graphics.X11.Xlib.Types Methods showsPrec :: Int -> VisualInfo -> ShowS # show :: VisualInfo -> String # showList :: [VisualInfo] -> ShowS # | |
| Storable VisualInfo | |
Defined in Graphics.X11.Xlib.Types Methods sizeOf :: VisualInfo -> Int # alignment :: VisualInfo -> Int # peekElemOff :: Ptr VisualInfo -> Int -> IO VisualInfo # pokeElemOff :: Ptr VisualInfo -> Int -> VisualInfo -> IO () # peekByteOff :: Ptr b -> Int -> IO VisualInfo # pokeByteOff :: Ptr b -> Int -> VisualInfo -> IO () # peek :: Ptr VisualInfo -> IO VisualInfo # poke :: Ptr VisualInfo -> VisualInfo -> IO () # | |
| Default VisualInfo | |
Defined in Graphics.X11.Xlib.Types Methods def :: VisualInfo Source # | |
pointer to an X11 XImage structure
Instances
| Eq Image | |
| Data Image | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Image -> c Image # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Image # dataTypeOf :: Image -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Image) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Image) # gmapT :: (forall b. Data b => b -> b) -> Image -> Image # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Image -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Image -> r # gmapQ :: (forall d. Data d => d -> u) -> Image -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Image -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Image -> m Image # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Image -> m Image # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Image -> m Image # | |
| Ord Image | |
| Show Image | |
type ScreenNumber = Word32 Source #
counterpart of an X11 XPoint structure
Instances
| Eq Point | |
| Data Point | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Point -> c Point # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Point # dataTypeOf :: Point -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Point) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Point) # gmapT :: (forall b. Data b => b -> b) -> Point -> Point # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Point -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Point -> r # gmapQ :: (forall d. Data d => d -> u) -> Point -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Point -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Point -> m Point # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Point -> m Point # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Point -> m Point # | |
| Show Point | |
| Storable Point | |
counterpart of an X11 XRectangle structure
Constructors
| Rectangle | |
Fields
| |
Instances
| Eq Rectangle | |
| Data Rectangle | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Rectangle -> c Rectangle # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Rectangle # toConstr :: Rectangle -> Constr # dataTypeOf :: Rectangle -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Rectangle) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Rectangle) # gmapT :: (forall b. Data b => b -> b) -> Rectangle -> Rectangle # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Rectangle -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Rectangle -> r # gmapQ :: (forall d. Data d => d -> u) -> Rectangle -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Rectangle -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Rectangle -> m Rectangle # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Rectangle -> m Rectangle # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Rectangle -> m Rectangle # | |
| Read Rectangle | |
| Show Rectangle | |
| Storable Rectangle | |
Defined in Graphics.X11.Xlib.Types | |
| PPrint Rectangle Source # | |
counterpart of an X11 XArc structure
Constructors
| Arc | |
Fields
| |
counterpart of an X11 XSegment structure
Constructors
| Segment | |
Instances
| Eq Segment | |
| Data Segment | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Segment -> c Segment # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Segment # toConstr :: Segment -> Constr # dataTypeOf :: Segment -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Segment) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Segment) # gmapT :: (forall b. Data b => b -> b) -> Segment -> Segment # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Segment -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Segment -> r # gmapQ :: (forall d. Data d => d -> u) -> Segment -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Segment -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Segment -> m Segment # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Segment -> m Segment # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Segment -> m Segment # | |
| Show Segment | |
| Storable Segment | |
counterpart of an X11 XColor structure
Constructors
| Color | |
Fields
| |
Instances
| Eq Color | |
| Data Color | |
Defined in Graphics.X11.Xlib.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Color -> c Color # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Color # dataTypeOf :: Color -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Color) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Color) # gmapT :: (forall b. Data b => b -> b) -> Color -> Color # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Color -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Color -> r # gmapQ :: (forall d. Data d => d -> u) -> Color -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Color -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Color -> m Color # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Color -> m Color # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Color -> m Color # | |
| Show Color | |
| Storable Color | |
gCDashList :: GCMask Source #
gCClipMask :: GCMask Source #
gCFillRule :: GCMask Source #
gCFillStyle :: GCMask Source #
gCJoinStyle :: GCMask Source #
gCCapStyle :: GCMask Source #
gCLineStyle :: GCMask Source #
gCLineWidth :: GCMask Source #
gCPlaneMask :: GCMask Source #
gCFunction :: GCMask Source #
gXset :: GXFunction Source #
gXnand :: GXFunction Source #
gXequiv :: GXFunction Source #
gXnor :: GXFunction Source #
gXor :: GXFunction Source #
gXxor :: GXFunction Source #
gXnoop :: GXFunction Source #
gXcopy :: GXFunction Source #
gXand :: GXFunction Source #
gXclear :: GXFunction Source #
Xlib functions with return values of type Status return zero on
failure and nonzero on success.
placeOnTop :: Place Source #
xK_division :: KeySym Source #
xK_ccedilla :: KeySym Source #
xK_Ooblique :: KeySym Source #
xK_multiply :: KeySym Source #
xK_Ccedilla :: KeySym Source #
xK_onehalf :: KeySym Source #
xK_cedilla :: KeySym Source #
xK_notsign :: KeySym Source #
xK_section :: KeySym Source #
xK_currency :: KeySym Source #
xK_sterling :: KeySym Source #
xK_question :: KeySym Source #
xK_greater :: KeySym Source #
xK_asterisk :: KeySym Source #
xK_percent :: KeySym Source #
xK_quotedbl :: KeySym Source #
xK_Hyper_R :: KeySym Source #
xK_Hyper_L :: KeySym Source #
xK_Super_R :: KeySym Source #
xK_Super_L :: KeySym Source #
xK_Shift_R :: KeySym Source #
xK_Shift_L :: KeySym Source #
xK_KP_Equal :: KeySym Source #
xK_KP_Begin :: KeySym Source #
xK_KP_Next :: KeySym Source #
xK_KP_Prior :: KeySym Source #
xK_KP_Down :: KeySym Source #
xK_KP_Right :: KeySym Source #
xK_KP_Left :: KeySym Source #
xK_KP_Home :: KeySym Source #
xK_KP_Enter :: KeySym Source #
xK_KP_Space :: KeySym Source #
xK_Num_Lock :: KeySym Source #
xK_Execute :: KeySym Source #
xK_Page_Up :: KeySym Source #
xK_Sys_Req :: KeySym Source #
xK_Linefeed :: KeySym Source #
type ButtonMask = Modifier Source #
type NotifyMode = CInt Source #
type NotifyDetail = CInt Source #
type Visibility = CInt Source #
Place of window relative to siblings (used in Circulation requests or events)
type PropertyNotification = CInt Source #
type ColormapNotification = CInt Source #
type GrabStatus = CInt Source #
type AllowEvents = CInt Source #
type WindowClass = CInt Source #
type AttributeMask = Mask Source #
type CloseDownMode = CInt Source #
type QueryBestSizeClass = CInt Source #
type GXFunction = CInt Source #
type SubWindowMode = CInt Source #
type CoordinateMode = CInt Source #
type PolygonShape = CInt Source #
type CirculationDirection = CInt Source #
type ColormapAlloc = CInt Source #
type MappingRequest = CInt Source #
type ChangeSaveSetMode = CInt Source #
type BitGravity = CInt Source #
type WindowGravity = CInt Source #
type BackingStore = CInt Source #
type FontDirection = CInt Source #
type ImageFormat = CInt Source #
type Reflection = Word16 Source #
type SubpixelOrder = Word16 Source #
type Connection = Word16 Source #
type XRRModeFlags = Word64 Source #
class Monad m => MonadIO (m :: Type -> Type) where #
Monads in which IO computations may be embedded.
Any monad built by applying a sequence of monad transformers to the
IO monad will be an instance of this class.
Instances should satisfy the following laws, which state that liftIO
is a transformer of monads:
Instances
class Default a where Source #
A class for types with a default value.
Minimal complete definition
Nothing
Instances
gets :: MonadState s m => (s -> a) -> m a #
Gets specific component of the state, using a projection function supplied.
modify :: MonadState s m => (s -> s) -> m () #
Monadic state transformer.
Maps an old state to a new state inside a state monad. The old state is thrown away.
Main> :t modify ((+1) :: Int -> Int)
modify (...) :: (MonadState Int a) => a ()This says that modify (+1) acts over any
Monad that is a member of the MonadState class,
with an Int state.
class Monad m => MonadState s (m :: Type -> Type) | m -> s where #
Minimal definition is either both of get and put or just state
Methods
Return the state from the internals of the monad.
Replace the state inside the monad.
state :: (s -> (a, s)) -> m a #
Embed a simple state action into the monad.
Instances
| MonadState XState X | |
| MonadState XState PureX Source # | |
| MonadState s m => MonadState s (MaybeT m) | |
| MonadState s m => MonadState s (ListT m) | |
| Monad m => MonadState s (StateT s m) | |
| MonadState s m => MonadState s (ExceptT e m) | Since: mtl-2.2 |
| MonadState s m => MonadState s (ReaderT r m) | |
| (Monoid w, MonadState s m) => MonadState s (WriterT w m) | |
| (Monoid w, MonadState s m) => MonadState s (WriterT w m) | |
| Monad m => MonadState s (StateT s m) | |
| MonadState s m => MonadState s (IdentityT m) | |
| (Error e, MonadState s m) => MonadState s (ErrorT e m) | |
| MonadState s m => MonadState s (ContT r m) | |
| (Monad m, Monoid w) => MonadState s (RWST r w s m) | |
| (Monad m, Monoid w) => MonadState s (RWST r w s m) | |
| (Show s, Read s, Typeable s) => MonadState (Maybe s) (StateQuery s) Source # | Instance of MonadState for StateQuery. |
Defined in XMonad.Util.WindowState Methods get :: StateQuery s (Maybe s) # put :: Maybe s -> StateQuery s () # state :: (Maybe s -> (a, Maybe s)) -> StateQuery s a # | |
| MonadState (TwoDState a) (TwoD a) Source # | |
Arguments
| :: MonadReader r m | |
| => (r -> a) | The selector function to apply to the environment. |
| -> m a |
Retrieves a function of the current environment.
class Monad m => MonadReader r (m :: Type -> Type) | m -> r where #
See examples in Control.Monad.Reader.
Note, the partially applied function type (->) r is a simple reader monad.
See the instance declaration below.
Methods
Retrieves the monad environment.
Arguments
| :: (r -> r) | The function to modify the environment. |
| -> m a |
|
| -> m a |
Executes a computation in a modified environment.
Arguments
| :: (r -> a) | The selector function to apply to the environment. |
| -> m a |
Retrieves a function of the current environment.
Instances
| MonadReader Window Query | |
| MonadReader XConf X | |
| MonadReader XConf PureX Source # | |
| MonadReader Focus FocusQuery Source # | |
Defined in XMonad.Hooks.Focus Methods ask :: FocusQuery Focus # local :: (Focus -> Focus) -> FocusQuery a -> FocusQuery a # reader :: (Focus -> a) -> FocusQuery a # | |
| MonadReader r m => MonadReader r (MaybeT m) | |
| MonadReader r m => MonadReader r (ListT m) | |
| (Monoid w, MonadReader r m) => MonadReader r (WriterT w m) | |
| (Monoid w, MonadReader r m) => MonadReader r (WriterT w m) | |
| MonadReader r m => MonadReader r (StateT s m) | |
| MonadReader r m => MonadReader r (StateT s m) | |
| Monad m => MonadReader r (ReaderT r m) | |
| MonadReader r m => MonadReader r (IdentityT m) | |
| MonadReader r m => MonadReader r (ExceptT e m) | Since: mtl-2.2 |
| (Error e, MonadReader r m) => MonadReader r (ErrorT e m) | |
| MonadReader r ((->) r :: Type -> Type) | |
| MonadReader r' m => MonadReader r' (ContT r m) | |
| (Monad m, Monoid w) => MonadReader r (RWST r w s m) | |
| (Monad m, Monoid w) => MonadReader r (RWST r w s m) | |
launch :: forall (l :: Type -> Type). (LayoutClass l Window, Read (l Window)) => XConfig l -> Directories -> IO () Source #
Entry point into xmonad for custom builds.
This function isn't meant to be called by the typical xmonad user because it:
- Does not process any command line arguments.
- Therefore doesn't know how to restart a running xmonad.
- Does not compile your configuration file since it assumes it's actually running from within your compiled configuration.
Unless you know what you are doing, you should probably be using
the xmonad function instead.
However, if you are using a custom build environment (such as
stack, cabal, make, etc.) you will likely want to call this
function instead of xmonad. You probably also want to have a key
binding to the restart function that restarts
your custom binary with the resume flag set to True.
defaultConfig :: XConfig (Choose Tall (Choose (Mirror Tall) Full)) Source #
The default set of configuration values itself
doShift :: WorkspaceId -> ManageHook Source #
Move the window to a given workspace
doIgnore :: ManageHook Source #
Map the window and remove it from the WindowSet.
doFloat :: ManageHook Source #
Move the window to the floating layer.
stringProperty :: String -> Query String Source #
A query that can return an arbitrary X property of type String,
identified by name.
(=?) :: Eq a => Query a -> a -> Query Bool Source #
q =? x. if the result of q equals x, return True.
(-->) :: (Monad m, Monoid a) => m Bool -> m a -> m a infix 0 Source #
p --> x. If p returns True, execute the ManageHook.
(-->) :: Monoid m => Query Bool -> Query m -> Query m -- a simpler type
composeAll :: Monoid m => [m] -> m Source #
Compose the list of ManageHooks.
applyMaxSizeHint :: D -> D -> D Source #
Reduce the dimensions if they exceed the given maximum dimensions.
applyResizeIncHint :: D -> D -> D Source #
Reduce the dimensions so they are a multiple of the size increments.
applyAspectHint :: (D, D) -> D -> D Source #
Reduce the dimensions so their aspect ratio falls between the two given aspect ratios.
applySizeHintsContents :: Integral a => SizeHints -> (a, a) -> D Source #
Reduce the dimensions if needed to comply to the given SizeHints.
applySizeHints :: Integral a => Dimension -> SizeHints -> (a, a) -> D Source #
Reduce the dimensions if needed to comply to the given SizeHints, taking window borders into account.
mkAdjust :: Window -> X (D -> D) Source #
Given a window, build an adjuster function that will reduce the given dimensions according to the window's border width and size hints.
mouseResizeWindow :: Window -> X () Source #
Resize the window under the cursor with the mouse while it is dragged.
mouseMoveWindow :: Window -> X () Source #
Drag the window under the cursor with the mouse while it is dragged.
pointWithin :: Position -> Position -> Rectangle -> Bool Source #
pointWithin x y r returns True if the (x, y) co-ordinate is within
r.
pointScreen :: Position -> Position -> X (Maybe (Screen WorkspaceId (Layout Window) Window ScreenId ScreenDetail)) Source #
Given a point, determine the screen (if any) that contains it.
floatLocation :: Window -> X (ScreenId, RationalRect) Source #
Given a window, find the screen it is located on, and compute the geometry of that window WRT that screen.
readStateFile :: forall (l :: Type -> Type). (LayoutClass l Window, Read (l Window)) => XConfig l -> X (Maybe XState) Source #
Read the state of a previous xmonad instance from a file and return that state. The state file is removed after reading it.
writeStateToFile :: X () Source #
Write the current window state (and extensible state) to a file so that xmonad can resume with that state intact.
extraModifiers :: X [KeyMask] Source #
Combinations of extra modifier masks we need to grab keys/buttons for. (numlock and capslock)
withUnfocused :: (Window -> X ()) -> X () Source #
Apply an X operation to all unfocused windows on the current workspace, if there are any.
withFocused :: (Window -> X ()) -> X () Source #
Apply an X operation to the currently focused window, if there is one.
screenWorkspace :: ScreenId -> X (Maybe WorkspaceId) Source #
Return workspace visible on screen sc, or Nothing.
updateLayout :: WorkspaceId -> Maybe (Layout Window) -> X () Source #
Update the layout field of a workspace.
sendMessageWithNoRefresh :: Message a => a -> WindowSpace -> X () Source #
Send a message to a layout, without refreshing.
broadcastMessage :: Message a => a -> X () Source #
Send a message to all layouts, without refreshing.
sendMessage :: Message a => a -> X () Source #
Throw a message to the current LayoutClass possibly modifying how we
layout the windows, in which case changes are handled through a refresh.
focus :: Window -> X () Source #
Set focus explicitly to window w if it is managed by us, or root.
This happens if X notices we've moved the mouse (and perhaps moved
the mouse to a new screen).
setTopFocus :: X () Source #
Set the focus to the window on top of the stack, or root
setButtonGrab :: Bool -> Window -> X () Source #
Tell whether or not to intercept clicks on a given window
The screen configuration may have changed (due to -- xrandr), update the state and refresh the screen, and reset the gap.
getCleanedScreenInfo :: MonadIO m => Display -> m [Rectangle] Source #
Clean the list of screens according to the rules documented for nubScreens.
nubScreens :: [Rectangle] -> [Rectangle] Source #
Given a list of screens, remove all duplicated screens and screens that are entirely contained within another.
containedIn :: Rectangle -> Rectangle -> Bool Source #
Returns True if the first rectangle is contained within, but not equal
to the second.
tileWindow :: Window -> Rectangle -> X () Source #
Move and resize w such that it fits inside the given rectangle,
including its border.
clearEvents :: EventMask -> X () Source #
Remove all events of a given type from the event queue.
Render the currently visible workspaces, as determined by
the StackSet. Also, set focus to the focused window.
This is our view operation (MVC), in that it pretty prints our model
with X calls.
setInitialProperties :: Window -> X () Source #
Set some properties when we initially gain control of a window.
reveal :: Window -> X () Source #
Show a window by mapping it and setting Normal. This is harmless if the window was already visible.
setWindowBorderWithFallback :: Display -> Window -> String -> Pixel -> X () Source #
Set the border color using the window's color map, if possible;
otherwise fall back to the color in Pixel.
scaleRationalRect :: Rectangle -> RationalRect -> Rectangle Source #
Produce the actual rectangle from a screen and a ratio on that screen.
windowBracket_ :: X Any -> X () Source #
Perform an X action. If it returns Any True, unwind the
changes to the WindowSet and replay them using windows. This is
a version of windowBracket that discards the return value and
handles an X action that reports its need for refresh via Any.
windowBracket :: (a -> Bool) -> X a -> X a Source #
Perform an X action and check its return value against a predicate p.
If p holds, unwind changes to the WindowSet and replay them using windows.
modifyWindowSet :: (WindowSet -> WindowSet) -> X () Source #
Modify the WindowSet in state with no special handling.
windows :: (WindowSet -> WindowSet) -> X () Source #
Modify the current window list with a pure function, and refresh
killWindow :: Window -> X () Source #
Kill the specified window. If we do kill it, we'll get a delete notify back from X.
There are two ways to delete a window. Either just kill it, or if it supports the delete protocol, send a delete event (e.g. firefox)
unmanage :: Window -> X () Source #
A window no longer exists; remove it from the window list, on whatever workspace it is.
manage :: Window -> X () Source #
Add a new window to be managed in the current workspace. Bring it into focus.
Whether the window is already managed, or not, it is mapped, has its border set, and its event mask set.
A type to help serialize xmonad's state to a file.
Constructors
| StateFile | |
Fields
| |
mirrorRect :: Rectangle -> Rectangle Source #
Mirror a rectangle.
Arguments
| :: Rational |
|
| -> Rectangle |
|
| -> Int |
|
| -> Int |
|
| -> [Rectangle] |
Compute the positions for windows using the default two-pane tiling algorithm.
The screen is divided into two panes. All clients are then partitioned between these two panes. One pane, the master, by convention has the least number of windows in it.
Change the size of the master pane.
data IncMasterN Source #
Increase the number of clients in the master pane.
Constructors
| IncMasterN !Int |
Instances
| Show IncMasterN Source # | |
Defined in XMonad.Util.NamedActions Methods showsPrec :: Int -> IncMasterN -> ShowS # show :: IncMasterN -> String # showList :: [IncMasterN] -> ShowS # | |
| Message IncMasterN | |
Defined in XMonad.Layout | |
Simple fullscreen mode. Renders the focused window fullscreen.
Constructors
| Full |
Instances
| LayoutClass Full a | |
Defined in XMonad.Layout Methods runLayout :: Workspace WorkspaceId (Full a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (Full a)) Source # doLayout :: Full a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (Full a)) Source # pureLayout :: Full a -> Rectangle -> Stack a -> [(a, Rectangle)] Source # emptyLayout :: Full a -> Rectangle -> X ([(a, Rectangle)], Maybe (Full a)) Source # handleMessage :: Full a -> SomeMessage -> X (Maybe (Full a)) Source # pureMessage :: Full a -> SomeMessage -> Maybe (Full a) Source # description :: Full a -> String Source # | |
| Read (Full a) | |
| Show (Full a) | |
The builtin tiling mode of xmonad. Supports Shrink, Expand and
IncMasterN.
Constructors
| Tall | |
Fields
| |
Instances
| LayoutClass Tall a | |
Defined in XMonad.Layout Methods runLayout :: Workspace WorkspaceId (Tall a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (Tall a)) Source # doLayout :: Tall a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (Tall a)) Source # pureLayout :: Tall a -> Rectangle -> Stack a -> [(a, Rectangle)] Source # emptyLayout :: Tall a -> Rectangle -> X ([(a, Rectangle)], Maybe (Tall a)) Source # handleMessage :: Tall a -> SomeMessage -> X (Maybe (Tall a)) Source # pureMessage :: Tall a -> SomeMessage -> Maybe (Tall a) Source # description :: Tall a -> String Source # | |
| Read (Tall a) | |
| Show (Tall a) | |
newtype Mirror (l :: Type -> Type) a Source #
Mirror a layout, compute its 90 degree rotated form.
Constructors
| Mirror (l a) |
Instances
| LayoutClass l a => LayoutClass (Mirror l) a | |
Defined in XMonad.Layout Methods runLayout :: Workspace WorkspaceId (Mirror l a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (Mirror l a)) Source # doLayout :: Mirror l a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (Mirror l a)) Source # pureLayout :: Mirror l a -> Rectangle -> Stack a -> [(a, Rectangle)] Source # emptyLayout :: Mirror l a -> Rectangle -> X ([(a, Rectangle)], Maybe (Mirror l a)) Source # handleMessage :: Mirror l a -> SomeMessage -> X (Maybe (Mirror l a)) Source # pureMessage :: Mirror l a -> SomeMessage -> Maybe (Mirror l a) Source # description :: Mirror l a -> String Source # | |
| Read (l a) => Read (Mirror l a) | |
| Show (l a) => Show (Mirror l a) | |
data ChangeLayout Source #
Messages to change the current layout. Also see JumpToLayout.
Constructors
| FirstLayout | |
| NextLayout |
Instances
| Eq ChangeLayout | |
Defined in XMonad.Layout | |
| Show ChangeLayout | |
Defined in XMonad.Layout Methods showsPrec :: Int -> ChangeLayout -> ShowS # show :: ChangeLayout -> String # showList :: [ChangeLayout] -> ShowS # | |
| Message ChangeLayout | |
Defined in XMonad.Layout | |
newtype JumpToLayout Source #
A message to jump to a particular layout, specified by its description string.
The argument given to a JumpToLayout message should be the
description of the layout to be selected. If you use
XMonad.Hooks.DynamicLog from xmonad-contrib, this is the name of
the layout displayed in your status bar. Alternatively, you can use
GHCi to determine the proper name to use. For example:
$ ghci GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help Loading package base ... linking ... done. :set prompt "> " -- don't show loaded module names > :m +XMonad.Core -- load the xmonad core > :m +XMonad.Layout.Grid -- load whatever module you want to use > description Grid -- find out what it's called "Grid"
As yet another (possibly easier) alternative, you can use the
XMonad.Layout.Renamed module (also in xmonad-contrib) to give
custom names to your layouts, and use those.
For example, if you want to jump directly to the Full layout you
can do
, ((modm .|. controlMask, xK_f), sendMessage $ JumpToLayout "Full")
Constructors
| JumpToLayout String |
Instances
| Message JumpToLayout | |
Defined in XMonad.Layout | |
data Choose (l :: Type -> Type) (r :: Type -> Type) a Source #
A layout that allows users to switch between various layout options.
Instances
| (LayoutClass l a, LayoutClass r a) => LayoutClass (Choose l r) a | |
Defined in XMonad.Layout Methods runLayout :: Workspace WorkspaceId (Choose l r a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (Choose l r a)) Source # doLayout :: Choose l r a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (Choose l r a)) Source # pureLayout :: Choose l r a -> Rectangle -> Stack a -> [(a, Rectangle)] Source # emptyLayout :: Choose l r a -> Rectangle -> X ([(a, Rectangle)], Maybe (Choose l r a)) Source # handleMessage :: Choose l r a -> SomeMessage -> X (Maybe (Choose l r a)) Source # pureMessage :: Choose l r a -> SomeMessage -> Maybe (Choose l r a) Source # description :: Choose l r a -> String Source # | |
| (Read (l a), Read (r a)) => Read (Choose l r a) | |
| (Show (l a), Show (r a)) => Show (Choose l r a) | |
uninstallSignalHandlers :: MonadIO m => m () Source #
installSignalHandlers :: MonadIO m => m () Source #
Ignore SIGPIPE to avoid termination when a pipe is full, and SIGCHLD to avoid zombie processes, and clean up any extant zombie processes.
whenJust :: Monad m => Maybe a -> (a -> m ()) -> m () Source #
Conditionally run an action, using a Maybe a to decide.
recompile :: MonadIO m => Directories -> Bool -> m Bool Source #
Recompile the xmonad configuration file when any of the following apply:
- force is
True - the xmonad executable does not exist
- the xmonad executable is older than
xmonad.hsor any file in thelibdirectory (under the configuration directory) - custom
buildscript is being used
The -i flag is used to restrict recompilation to the xmonad.hs file only,
and any files in the aforementioned lib directory.
Compilation errors (if any) are logged to the xmonad.errors file
in the xmonad data directory. If GHC indicates failure with a
non-zero exit code, an xmessage displaying that file is spawned.
False is returned if there are compilation errors.
stateFileName :: Directories -> FilePath Source #
binFileName :: Directories -> FilePath Source #
getXMonadDataDir :: X String Source #
Return the path to the xmonad data directory.
getXMonadCacheDir :: X String Source #
Return the path to the xmonad cache directory.
getXMonadDir :: X String Source #
Return the path to the xmonad configuration directory.
getDirectories :: IO Directories Source #
Build up the Dirs that xmonad will use. They are chosen as
follows:
- If all three of xmonad's environment variables (
XMONAD_DATA_DIR,XMONAD_CONFIG_DIR, andXMONAD_CACHE_DIR) are set, use them. - If there is a build script called
buildor configurationxmonad.hsin~/.xmonad, set all three directories to~/.xmonad. - Otherwise, use the
xmonaddirectory inXDG_DATA_HOME,XDG_CONFIG_HOME, andXDG_CACHE_HOME(or their respective fallbacks). These directories are created if necessary.
The xmonad configuration file (or the build script, if present) is
always assumed to be in cfgDir.
runOnWorkspaces :: (WindowSpace -> X WindowSpace) -> X () Source #
This is basically a map function, running a function in the X monad on
each workspace with the output of that function being the modified workspace.
xfork :: MonadIO m => IO () -> m ProcessID Source #
A replacement for forkProcess which resets default signal handlers.
spawn :: MonadIO m => String -> m () Source #
spawn. Launch an external application. Specifically, it double-forks and
runs the String you pass as a command to /bin/sh.
Note this function assumes your locale uses utf8.
fromMessage :: Message m => SomeMessage -> Maybe m Source #
And now, unwrap a given, unknown Message type, performing a (dynamic)
type check on the result.
atom_WM_TAKE_FOCUS :: X Atom Source #
Common non-predefined atoms
atom_WM_STATE :: X Atom Source #
Common non-predefined atoms
atom_WM_DELETE_WINDOW :: X Atom Source #
Common non-predefined atoms
atom_WM_PROTOCOLS :: X Atom Source #
Common non-predefined atoms
withWindowAttributes :: Display -> Window -> (WindowAttributes -> X ()) -> X () Source #
Safely access window attributes.
userCodeDef :: a -> X a -> X a Source #
Same as userCode but with a default argument to return instead of using Maybe, provided for convenience.
userCode :: X a -> X (Maybe a) Source #
Execute the argument, catching all exceptions. Either this function or
catchX should be used at all callsites of user customized code.
catchX :: X a -> X a -> X a Source #
Run in the X monad, and in case of exception, and catch it and log it
to stderr, and run the error case.
XState, the (mutable) window manager state.
Constructors
| XState | |
Fields
| |
Instances
XConf, the (read-only) window manager configuration.
Constructors
| XConf | |
Fields
| |
Instances
data XConfig (l :: Type -> Type) Source #
Constructors
| XConfig !String !String !String !(l Window) !ManageHook !(Event -> X All) ![String] !KeyMask !(XConfig Layout -> Map (ButtonMask, KeySym) (X ())) !(XConfig Layout -> Map (ButtonMask, Button) (Window -> X ())) !Dimension !(X ()) !(X ()) !Bool !Bool !EventMask !EventMask !([String] -> XConfig Layout -> IO (XConfig Layout)) !(Map TypeRep ConfExtension) |
type WindowSpace = Workspace WorkspaceId (Layout Window) Window Source #
type WorkspaceId = String Source #
Virtual workspace indices
Physical screen indices
Instances
| Enum ScreenId | |
| Eq ScreenId | |
| Integral ScreenId | |
Defined in XMonad.Core | |
| Num ScreenId | |
| Ord ScreenId | |
Defined in XMonad.Core | |
| Read ScreenId | |
| Real ScreenId | |
Defined in XMonad.Core Methods toRational :: ScreenId -> Rational # | |
| Show ScreenId | |
| PPrint ScreenId Source # | |
newtype ScreenDetail Source #
The Rectangle with screen dimensions
Constructors
| SD | |
Fields | |
Instances
| Eq ScreenDetail | |
Defined in XMonad.Core | |
| Read ScreenDetail | |
Defined in XMonad.Core Methods readsPrec :: Int -> ReadS ScreenDetail # readList :: ReadS [ScreenDetail] # | |
| Show ScreenDetail | |
Defined in XMonad.Core Methods showsPrec :: Int -> ScreenDetail -> ShowS # show :: ScreenDetail -> String # showList :: [ScreenDetail] -> ShowS # | |
| PPrint ScreenDetail Source # | |
Defined in XMonad.Config.Dmwit | |
The X monad, ReaderT and StateT transformers over IO
encapsulating the window manager configuration and state,
respectively.
Dynamic components may be retrieved with get, static components
with ask. With newtype deriving we get readers and state monads
instantiated on XConf and XState automatically.
Instances
| Monad X | |
| Functor X | |
| MonadFail X | |
Defined in XMonad.Core | |
| Applicative X | |
| MonadIO X | |
Defined in XMonad.Core | |
| XLike X Source # | |
| MonadState XState X | |
| MonadReader XConf X | |
| Semigroup a => Semigroup (X a) | |
| Monoid a => Monoid (X a) | |
| Default a => Default (X a) | |
Defined in XMonad.Core | |
| HasName (X ()) Source # | |
| HasName (X (), [String]) Source # | |
| HasName (X (), String) Source # | |
| UrgencyHook (Window -> X ()) Source # | |
Defined in XMonad.Hooks.UrgencyHook | |
An existential type that can hold any object that is in Read
and LayoutClass.
Constructors
| (LayoutClass l a, Read (l a)) => Layout (l a) |
Instances
| LayoutClass Layout Window | |
Defined in XMonad.Core Methods runLayout :: Workspace WorkspaceId (Layout Window) Window -> Rectangle -> X ([(Window, Rectangle)], Maybe (Layout Window)) Source # doLayout :: Layout Window -> Rectangle -> Stack Window -> X ([(Window, Rectangle)], Maybe (Layout Window)) Source # pureLayout :: Layout Window -> Rectangle -> Stack Window -> [(Window, Rectangle)] Source # emptyLayout :: Layout Window -> Rectangle -> X ([(Window, Rectangle)], Maybe (Layout Window)) Source # handleMessage :: Layout Window -> SomeMessage -> X (Maybe (Layout Window)) Source # pureMessage :: Layout Window -> SomeMessage -> Maybe (Layout Window) Source # | |
| Show (Layout a) | |
| PPrint (Layout a) Source # | |
class (Show (layout a), Typeable layout) => LayoutClass (layout :: Type -> Type) a where Source #
Every layout must be an instance of LayoutClass, which defines
the basic layout operations along with a sensible default for each.
All of the methods have default implementations, so there is no minimal complete definition. They do, however, have a dependency structure by default; this is something to be aware of should you choose to implement one of these methods. Here is how a minimal complete definition would look like if we did not provide any default implementations:
runLayout|| ((doLayout||pureLayout) &&emptyLayout)handleMessage||pureMessagedescription
Note that any code which uses LayoutClass methods should only
ever call runLayout, handleMessage, and description! In
other words, the only calls to doLayout, pureMessage, and other
such methods should be from the default implementations of
runLayout, handleMessage, and so on. This ensures that the
proper methods will be used, regardless of the particular methods
that any LayoutClass instance chooses to define.
Minimal complete definition
Nothing
Methods
runLayout :: Workspace WorkspaceId (layout a) a -> Rectangle -> X ([(a, Rectangle)], Maybe (layout a)) Source #
By default, runLayout calls doLayout if there are any
windows to be laid out, and emptyLayout otherwise. Most
instances of LayoutClass probably do not need to implement
runLayout; it is only useful for layouts which wish to make
use of more of the Workspace information (for example,
XMonad.Layout.PerWorkspace).
doLayout :: layout a -> Rectangle -> Stack a -> X ([(a, Rectangle)], Maybe (layout a)) Source #
Given a Rectangle in which to place the windows, and a Stack
of windows, return a list of windows and their corresponding
Rectangles. If an element is not given a Rectangle by
doLayout, then it is not shown on screen. The order of
windows in this list should be the desired stacking order.
Also possibly return a modified layout (by returning Just
newLayout), if this layout needs to be modified (e.g. if it
keeps track of some sort of state). Return Nothing if the
layout does not need to be modified.
Layouts which do not need access to the X monad (IO, window
manager state, or configuration) and do not keep track of their
own state should implement pureLayout instead of doLayout.
pureLayout :: layout a -> Rectangle -> Stack a -> [(a, Rectangle)] Source #
This is a pure version of doLayout, for cases where we
don't need access to the X monad to determine how to lay out
the windows, and we don't need to modify the layout itself.
emptyLayout :: layout a -> Rectangle -> X ([(a, Rectangle)], Maybe (layout a)) Source #
emptyLayout is called when there are no windows.
handleMessage :: layout a -> SomeMessage -> X (Maybe (layout a)) Source #
handleMessage performs message handling. If
handleMessage returns Nothing, then the layout did not
respond to the message and the screen is not refreshed.
Otherwise, handleMessage returns an updated layout and the
screen is refreshed.
Layouts which do not need access to the X monad to decide how
to handle messages should implement pureMessage instead of
handleMessage (this restricts the risk of error, and makes
testing much easier).
pureMessage :: layout a -> SomeMessage -> Maybe (layout a) Source #
Respond to a message by (possibly) changing our layout, but taking no other action. If the layout changes, the screen will be refreshed.
description :: layout a -> String Source #
This should be a human-readable string that is used when
selecting layouts by name. The default implementation is
show, which is in some cases a poor default.
Instances
class Typeable a => Message a Source #
Based on ideas in /An Extensible Dynamically-Typed Hierarchy of
Exceptions/, Simon Marlow, 2006. Use extensible messages to the
handleMessage handler.
User-extensible messages must be a member of this class.
Instances
data SomeMessage Source #
A wrapped value of some type in the Message class.
Constructors
| Message a => SomeMessage a |
data LayoutMessages Source #
LayoutMessages are core messages that all layouts (especially stateful
layouts) should consider handling.
Constructors
| Hide | sent when a layout becomes non-visible |
| ReleaseResources | sent when xmonad is exiting or restarting |
Instances
| Eq LayoutMessages | |
Defined in XMonad.Core Methods (==) :: LayoutMessages -> LayoutMessages -> Bool # (/=) :: LayoutMessages -> LayoutMessages -> Bool # | |
| Message LayoutMessages | |
Defined in XMonad.Core | |
class Typeable a => ExtensionClass a where Source #
Every module must make the data it wants to store an instance of this class.
Minimal complete definition: initialValue
Minimal complete definition
Methods
initialValue :: a Source #
Defines an initial value for the state extension
extensionType :: a -> StateExtension Source #
Specifies whether the state extension should be
persistent. Setting this method to PersistentExtension
will make the stored data survive restarts, but
requires a to be an instance of Read and Show.
It defaults to StateExtension, i.e. no persistence.
Instances
| ExtensionClass Minimized Source # | |
Defined in XMonad.Util.Minimize | |
| ExtensionClass PositionStore Source # | |
Defined in XMonad.Util.PositionStore Methods | |
| ExtensionClass MasterHistory Source # | |
Defined in XMonad.Actions.SwapPromote Methods | |
| ExtensionClass RefocusLastToggle Source # | |
Defined in XMonad.Hooks.RefocusLast Methods initialValue :: RefocusLastToggle Source # extensionType :: RefocusLastToggle -> StateExtension Source # | |
| ExtensionClass RecentsMap Source # | |
Defined in XMonad.Hooks.RefocusLast | |
| ExtensionClass Navigation2DConfig Source # | |
Defined in XMonad.Actions.Navigation2D Methods initialValue :: Navigation2DConfig Source # extensionType :: Navigation2DConfig -> StateExtension Source # | |
| ExtensionClass PrefixArgument Source # | |
Defined in XMonad.Actions.Prefix Methods | |
| ExtensionClass KeymapTable Source # | |
Defined in XMonad.Actions.KeyRemap | |
| ExtensionClass FocusLock Source # | |
Defined in XMonad.Hooks.Focus | |
| ExtensionClass Spawner Source # | |
Defined in XMonad.Actions.SpawnOn | |
data StateExtension Source #
Existential type to store a state extension.
Constructors
| ExtensionClass a => StateExtension a | Non-persistent state extension |
| (Read a, Show a, ExtensionClass a) => PersistentExtension a | Persistent extension |
data ConfExtension Source #
Existential type to store a config extension.
Constructors
| Typeable a => ConfExtension a |
data Directories' a Source #
All the directories that xmonad will use. They will be used for the following purposes:
dataDir: This directory is used by XMonad to store data files such as the run-time state file.cfgDir: This directory is where user configuration files are stored (e.g, the xmonad.hs file). You may also create alibsubdirectory in the configuration directory and the default recompile command will add it to the GHC include path.cacheDir: This directory is used to store temporary files that can easily be recreated such as the configuration binary and any intermediate object files generated by GHC. Also, the XPrompt history file goes here.
For how these directories are chosen, see getDirectories.
Constructors
| Directories | |
Instances
type Directories = Directories' FilePath Source #
Convenient type alias for the most common case in which one might
want to use the Directories type.
(Almost) everything you know and love from the Haskell Prelude is
available for use in your config file. Note that >> has been overriden, so
if you want to create do-blocks for normal monads, you'll need some let
statements or a separate module. (See the Troubleshooting section.)
(++) :: [a] -> [a] -> [a] infixr 5 #
Append two lists, i.e.,
[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn] [x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]
If the first list is not finite, the result is the first list.
seq :: forall (r :: RuntimeRep) a (b :: TYPE r). a -> b -> b infixr 0 #
The value of seq a b is bottom if a is bottom, and
otherwise equal to b. In other words, it evaluates the first
argument a to weak head normal form (WHNF). seq is usually
introduced to improve performance by avoiding unneeded laziness.
A note on evaluation order: the expression seq a b does
not guarantee that a will be evaluated before b.
The only guarantee given by seq is that the both a
and b will be evaluated before seq returns a value.
In particular, this means that b may be evaluated before
a. If you need to guarantee a specific order of evaluation,
you must use the function pseq from the "parallel" package.
filter :: (a -> Bool) -> [a] -> [a] #
\(\mathcal{O}(n)\). filter, applied to a predicate and a list, returns
the list of those elements that satisfy the predicate; i.e.,
filter p xs = [ x | x <- xs, p x]
>>>filter odd [1, 2, 3][1,3]
zip :: [a] -> [b] -> [(a, b)] #
\(\mathcal{O}(\min(m,n))\). zip takes two lists and returns a list of
corresponding pairs.
zip [1, 2] ['a', 'b'] = [(1, 'a'), (2, 'b')]
If one input list is short, excess elements of the longer list are discarded:
zip [1] ['a', 'b'] = [(1, 'a')] zip [1, 2] ['a'] = [(1, 'a')]
zip is right-lazy:
zip [] _|_ = [] zip _|_ [] = _|_
zip is capable of list fusion, but it is restricted to its
first list argument and its resulting list.
print :: Show a => a -> IO () #
The print function outputs a value of any printable type to the
standard output device.
Printable types are those that are instances of class Show; print
converts values to strings for output using the show operation and
adds a newline.
For example, a program to print the first 20 integers and their powers of 2 could be written as:
main = print ([(n, 2^n) | n <- [0..19]])
map :: (a -> b) -> [a] -> [b] #
\(\mathcal{O}(n)\). map f xs is the list obtained by applying f to
each element of xs, i.e.,
map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn] map f [x1, x2, ...] == [f x1, f x2, ...]
>>>map (+1) [1, 2, 3]
($) :: forall (r :: RuntimeRep) a (b :: TYPE r). (a -> b) -> a -> b infixr 0 #
Application operator. This operator is redundant, since ordinary
application (f x) means the same as (f . However, $ x)$ has
low, right-associative binding precedence, so it sometimes allows
parentheses to be omitted; for example:
f $ g $ h x = f (g (h x))
It is also useful in higher-order situations, such as ,
or map ($ 0) xs.zipWith ($) fs xs
Note that ( is levity-polymorphic in its result type, so that
$)foo where $ Truefoo :: Bool -> Int# is well-typed.
fromIntegral :: (Integral a, Num b) => a -> b #
general coercion from integral types
realToFrac :: (Real a, Fractional b) => a -> b #
general coercion to fractional types
The Bounded class is used to name the upper and lower limits of a
type. Ord is not a superclass of Bounded since types that are not
totally ordered may also have upper and lower bounds.
The Bounded class may be derived for any enumeration type;
minBound is the first constructor listed in the data declaration
and maxBound is the last.
Bounded may also be derived for single-constructor datatypes whose
constituent types are in Bounded.
Instances
Class Enum defines operations on sequentially ordered types.
The enumFrom... methods are used in Haskell's translation of
arithmetic sequences.
Instances of Enum may be derived for any enumeration type (types
whose constructors have no fields). The nullary constructors are
assumed to be numbered left-to-right by fromEnum from 0 through n-1.
See Chapter 10 of the Haskell Report for more details.
For any type that is an instance of class Bounded as well as Enum,
the following should hold:
- The calls
andsuccmaxBoundshould result in a runtime error.predminBound fromEnumandtoEnumshould give a runtime error if the result value is not representable in the result type. For example,is an error.toEnum7 ::BoolenumFromandenumFromThenshould be defined with an implicit bound, thus:
enumFrom x = enumFromTo x maxBound
enumFromThen x y = enumFromThenTo x y bound
where
bound | fromEnum y >= fromEnum x = maxBound
| otherwise = minBoundMethods
the successor of a value. For numeric types, succ adds 1.
the predecessor of a value. For numeric types, pred subtracts 1.
Convert from an Int.
Convert to an Int.
It is implementation-dependent what fromEnum returns when
applied to a value that is too large to fit in an Int.
Used in Haskell's translation of [n..] with [n..] = enumFrom n,
a possible implementation being enumFrom n = n : enumFrom (succ n).
For example:
enumFrom 4 :: [Integer] = [4,5,6,7,...]
enumFrom 6 :: [Int] = [6,7,8,9,...,maxBound :: Int]
enumFromThen :: a -> a -> [a] #
Used in Haskell's translation of [n,n'..]
with [n,n'..] = enumFromThen n n', a possible implementation being
enumFromThen n n' = n : n' : worker (f x) (f x n'),
worker s v = v : worker s (s v), x = fromEnum n' - fromEnum n and
f n y
| n > 0 = f (n - 1) (succ y)
| n < 0 = f (n + 1) (pred y)
| otherwise = y
For example:
enumFromThen 4 6 :: [Integer] = [4,6,8,10...]
enumFromThen 6 2 :: [Int] = [6,2,-2,-6,...,minBound :: Int]
enumFromTo :: a -> a -> [a] #
Used in Haskell's translation of [n..m] with
[n..m] = enumFromTo n m, a possible implementation being
enumFromTo n m
| n <= m = n : enumFromTo (succ n) m
| otherwise = [].
For example:
enumFromTo 6 10 :: [Int] = [6,7,8,9,10]
enumFromTo 42 1 :: [Integer] = []
enumFromThenTo :: a -> a -> a -> [a] #
Used in Haskell's translation of [n,n'..m] with
[n,n'..m] = enumFromThenTo n n' m, a possible implementation
being enumFromThenTo n n' m = worker (f x) (c x) n m,
x = fromEnum n' - fromEnum n, c x = bool (>=) ((x 0)
f n y
| n > 0 = f (n - 1) (succ y)
| n < 0 = f (n + 1) (pred y)
| otherwise = y and
worker s c v m
| c v m = v : worker s c (s v) m
| otherwise = []
For example:
enumFromThenTo 4 2 -6 :: [Integer] = [4,2,0,-2,-4,-6]
enumFromThenTo 6 8 2 :: [Int] = []
Instances
The Eq class defines equality (==) and inequality (/=).
All the basic datatypes exported by the Prelude are instances of Eq,
and Eq may be derived for any datatype whose constituents are also
instances of Eq.
The Haskell Report defines no laws for Eq. However, == is customarily
expected to implement an equivalence relationship where two values comparing
equal are indistinguishable by "public" functions, with a "public" function
being one not allowing to see implementation details. For example, for a
type representing non-normalised natural numbers modulo 100, a "public"
function doesn't make the difference between 1 and 201. It is expected to
have the following properties:
Instances
class Fractional a => Floating a where #
Trigonometric and hyperbolic functions and related functions.
The Haskell Report defines no laws for Floating. However, (, +)(
and *)exp are customarily expected to define an exponential field and have
the following properties:
exp (a + b)=exp a * exp bexp (fromInteger 0)=fromInteger 1
Minimal complete definition
pi, exp, log, sin, cos, asin, acos, atan, sinh, cosh, asinh, acosh, atanh
Instances
class Num a => Fractional a where #
Fractional numbers, supporting real division.
The Haskell Report defines no laws for Fractional. However, ( and
+)( are customarily expected to define a division ring and have the
following properties:*)
recipgives the multiplicative inversex * recip x=recip x * x=fromInteger 1
Note that it isn't customarily expected that a type instance of
Fractional implement a field. However, all instances in base do.
Minimal complete definition
fromRational, (recip | (/))
Methods
Fractional division.
Reciprocal fraction.
fromRational :: Rational -> a #
Conversion from a Rational (that is ).
A floating literal stands for an application of Ratio IntegerfromRational
to a value of type Rational, so such literals have type
(.Fractional a) => a
Instances
| Fractional CFloat | |
| Fractional CDouble | |
| Fractional NominalDiffTime | |
Defined in Data.Time.Clock.Internal.NominalDiffTime Methods (/) :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime # recip :: NominalDiffTime -> NominalDiffTime # fromRational :: Rational -> NominalDiffTime # | |
| Integral a => Fractional (Ratio a) | Since: base-2.0.1 |
| RealFloat a => Fractional (Complex a) | Since: base-2.1 |
| Fractional a => Fractional (Identity a) | Since: base-4.9.0.0 |
| Fractional a => Fractional (Down a) | Since: base-4.14.0.0 |
| Fractional a => Fractional (Const a b) | Since: base-4.9.0.0 |
class (Real a, Enum a) => Integral a where #
Integral numbers, supporting integer division.
The Haskell Report defines no laws for Integral. However, Integral
instances are customarily expected to define a Euclidean domain and have the
following properties for the div/mod and quot/rem pairs, given
suitable Euclidean functions f and g:
x=y * quot x y + rem x ywithrem x y=fromInteger 0org (rem x y)<g yx=y * div x y + mod x ywithmod x y=fromInteger 0orf (mod x y)<f y
An example of a suitable Euclidean function, for Integer's instance, is
abs.
Methods
quot :: a -> a -> a infixl 7 #
integer division truncated toward zero
integer remainder, satisfying
(x `quot` y)*y + (x `rem` y) == x
integer division truncated toward negative infinity
conversion to Integer
Instances
class Applicative m => Monad (m :: Type -> Type) where #
The Monad class defines the basic operations over a monad,
a concept from a branch of mathematics known as category theory.
From the perspective of a Haskell programmer, however, it is best to
think of a monad as an abstract datatype of actions.
Haskell's do expressions provide a convenient syntax for writing
monadic expressions.
Instances of Monad should satisfy the following:
- Left identity
returna>>=k = k a- Right identity
m>>=return= m- Associativity
m>>=(\x -> k x>>=h) = (m>>=k)>>=h
Furthermore, the Monad and Applicative operations should relate as follows:
The above laws imply:
and that pure and (<*>) satisfy the applicative functor laws.
The instances of Monad for lists, Maybe and IO
defined in the Prelude satisfy these laws.
Minimal complete definition
Methods
(>>=) :: m a -> (a -> m b) -> m b infixl 1 #
Sequentially compose two actions, passing any value produced by the first as an argument to the second.
'as ' can be understood as the >>= bsdo expression
do a <- as bs a
Inject a value into the monadic type.
Instances
| Monad [] | Since: base-2.1 |
| Monad Maybe | Since: base-2.1 |
| Monad IO | Since: base-2.1 |
| Monad Par1 | Since: base-4.9.0.0 |
| Monad Complex | Since: base-4.9.0.0 |
| Monad Identity | Since: base-4.8.0.0 |
| Monad STM | Since: base-4.3.0.0 |
| Monad First | Since: base-4.8.0.0 |
| Monad Last | Since: base-4.8.0.0 |
| Monad Dual | Since: base-4.8.0.0 |
| Monad Sum | Since: base-4.8.0.0 |
| Monad Product | Since: base-4.8.0.0 |
| Monad Down | Since: base-4.11.0.0 |
| Monad ReadPrec | Since: base-2.1 |
| Monad ReadP | Since: base-2.1 |
| Monad NonEmpty | Since: base-4.9.0.0 |
| Monad Tree | |
| Monad Seq | |
| Monad X | |
| Monad Query | |
| Monad P | Since: base-2.1 |
| Monad PureX Source # | |
| Monad FocusQuery Source # | |
Defined in XMonad.Hooks.Focus Methods (>>=) :: FocusQuery a -> (a -> FocusQuery b) -> FocusQuery b # (>>) :: FocusQuery a -> FocusQuery b -> FocusQuery b # return :: a -> FocusQuery a # | |
| Monad (Either e) | Since: base-4.4.0.0 |
| Monad (U1 :: Type -> Type) | Since: base-4.9.0.0 |
| Monoid a => Monad ((,) a) | Since: base-4.9.0.0 |
| Monad m => Monad (WrappedMonad m) | Since: base-4.7.0.0 |
Defined in Control.Applicative Methods (>>=) :: WrappedMonad m a -> (a -> WrappedMonad m b) -> WrappedMonad m b # (>>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b # return :: a -> WrappedMonad m a # | |
| ArrowApply a => Monad (ArrowMonad a) | Since: base-2.1 |
Defined in Control.Arrow Methods (>>=) :: ArrowMonad a a0 -> (a0 -> ArrowMonad a b) -> ArrowMonad a b # (>>) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a b # return :: a0 -> ArrowMonad a a0 # | |
| Monad (Proxy :: Type -> Type) | Since: base-4.7.0.0 |
| Monad m => Monad (ListT m) | |
| Monad m => Monad (MaybeT m) | |
| Monad m => Monad (Invisible m) Source # | |
| Monad (StateQuery s) Source # | |
Defined in XMonad.Util.WindowState Methods (>>=) :: StateQuery s a -> (a -> StateQuery s b) -> StateQuery s b # (>>) :: StateQuery s a -> StateQuery s b -> StateQuery s b # return :: a -> StateQuery s a # | |
| Monad (TwoD a) Source # | |
| Monad f => Monad (Rec1 f) | Since: base-4.9.0.0 |
| (Monoid a, Monoid b) => Monad ((,,) a b) | Since: base-4.14.0.0 |
| Monad m => Monad (Kleisli m a) | Since: base-4.14.0.0 |
| Monad f => Monad (Ap f) | Since: base-4.12.0.0 |
| Monad f => Monad (Alt f) | Since: base-4.8.0.0 |
| (Applicative f, Monad f) => Monad (WhenMissing f x) | Equivalent to Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods (>>=) :: WhenMissing f x a -> (a -> WhenMissing f x b) -> WhenMissing f x b # (>>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b # return :: a -> WhenMissing f x a # | |
| Monad m => Monad (IdentityT m) | |
| (Monad m, Error e) => Monad (ErrorT e m) | |
| Monad m => Monad (ExceptT e m) | |
| Monad m => Monad (ReaderT r m) | |
| Monad m => Monad (StateT s m) | |
| Monad m => Monad (StateT s m) | |
| (Monoid w, Monad m) => Monad (WriterT w m) | |
| (Monoid w, Monad m) => Monad (WriterT w m) | |
| Monad ((->) r :: Type -> Type) | Since: base-2.1 |
| (Monad f, Monad g) => Monad (f :*: g) | Since: base-4.9.0.0 |
| (Monoid a, Monoid b, Monoid c) => Monad ((,,,) a b c) | Since: base-4.14.0.0 |
| (Monad f, Monad g) => Monad (Product f g) | Since: base-4.9.0.0 |
| (Monad f, Applicative f) => Monad (WhenMatched f x y) | Equivalent to Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods (>>=) :: WhenMatched f x y a -> (a -> WhenMatched f x y b) -> WhenMatched f x y b # (>>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b # return :: a -> WhenMatched f x y a # | |
| (Applicative f, Monad f) => Monad (WhenMissing f k x) | Equivalent to Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods (>>=) :: WhenMissing f k x a -> (a -> WhenMissing f k x b) -> WhenMissing f k x b # (>>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b # return :: a -> WhenMissing f k x a # | |
| Monad (ContT r m) | |
| Monad f => Monad (M1 i c f) | Since: base-4.9.0.0 |
| (Monad f, Applicative f) => Monad (WhenMatched f k x y) | Equivalent to Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods (>>=) :: WhenMatched f k x y a -> (a -> WhenMatched f k x y b) -> WhenMatched f k x y b # (>>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b # return :: a -> WhenMatched f k x y a # | |
| (Monoid w, Monad m) => Monad (RWST r w s m) | |
| (Monoid w, Monad m) => Monad (RWST r w s m) | |
class Functor (f :: Type -> Type) where #
A type f is a Functor if it provides a function fmap which, given any types a and b
lets you apply any function from (a -> b) to turn an f a into an f b, preserving the
structure of f. Furthermore f needs to adhere to the following:
Note, that the second law follows from the free theorem of the type fmap and
the first law, so you need only check that the former condition holds.
Minimal complete definition
Methods
fmap :: (a -> b) -> f a -> f b #
Using ApplicativeDo: '' can be understood as
the fmap f asdo expression
do a <- as pure (f a)
with an inferred Functor constraint.
Instances
| Functor [] | Since: base-2.1 |
| Functor Maybe | Since: base-2.1 |
| Functor IO | Since: base-2.1 |
| Functor Par1 | Since: base-4.9.0.0 |
| Functor Complex | Since: base-4.9.0.0 |
| Functor ZipList | Since: base-2.1 |
| Functor Identity | Since: base-4.8.0.0 |
| Functor Handler | Since: base-4.6.0.0 |
| Functor STM | Since: base-4.3.0.0 |
| Functor First | Since: base-4.8.0.0 |
| Functor Last | Since: base-4.8.0.0 |
| Functor Dual | Since: base-4.8.0.0 |
| Functor Sum | Since: base-4.8.0.0 |
| Functor Product | Since: base-4.8.0.0 |
| Functor Down | Since: base-4.11.0.0 |
| Functor ReadPrec | Since: base-2.1 |
| Functor ReadP | Since: base-2.1 |
| Functor NonEmpty | Since: base-4.9.0.0 |
| Functor IntMap | |
| Functor Tree | |
| Functor Seq | |
| Functor FingerTree | |
Defined in Data.Sequence.Internal Methods fmap :: (a -> b) -> FingerTree a -> FingerTree b # (<$) :: a -> FingerTree b -> FingerTree a # | |
| Functor Digit | |
| Functor Node | |
| Functor Elem | |
| Functor ViewL | |
| Functor ViewR | |
| Functor X | |
| Functor Query | |
| Functor Directories' | |
Defined in XMonad.Core Methods fmap :: (a -> b) -> Directories' a -> Directories' b # (<$) :: a -> Directories' b -> Directories' a # | |
| Functor Stack | |
| Functor P | Since: base-4.8.0.0 |
Defined in Text.ParserCombinators.ReadP | |
| Functor PureX Source # | |
| Functor Cursors Source # | |
| Functor FocusQuery Source # | |
Defined in XMonad.Hooks.Focus Methods fmap :: (a -> b) -> FocusQuery a -> FocusQuery b # (<$) :: a -> FocusQuery b -> FocusQuery a # | |
| Functor (Either a) | Since: base-3.0 |
| Functor (V1 :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (U1 :: Type -> Type) | Since: base-4.9.0.0 |
| Functor ((,) a) | Since: base-2.1 |
| Functor (Array i) | Since: base-2.1 |
| Monad m => Functor (WrappedMonad m) | Since: base-2.1 |
Defined in Control.Applicative Methods fmap :: (a -> b) -> WrappedMonad m a -> WrappedMonad m b # (<$) :: a -> WrappedMonad m b -> WrappedMonad m a # | |
| Arrow a => Functor (ArrowMonad a) | Since: base-4.6.0.0 |
Defined in Control.Arrow Methods fmap :: (a0 -> b) -> ArrowMonad a a0 -> ArrowMonad a b # (<$) :: a0 -> ArrowMonad a b -> ArrowMonad a a0 # | |
| Functor (Proxy :: Type -> Type) | Since: base-4.7.0.0 |
| Functor (Map k) | |
| Functor m => Functor (ListT m) | |
| Functor m => Functor (MaybeT m) | |
| Functor m => Functor (Invisible m) Source # | |
| Functor (StateQuery s) Source # | |
Defined in XMonad.Util.WindowState Methods fmap :: (a -> b) -> StateQuery s a -> StateQuery s b # (<$) :: a -> StateQuery s b -> StateQuery s a # | |
| Functor (TwoD a) Source # | |
| Functor f => Functor (Rec1 f) | Since: base-4.9.0.0 |
| Functor (URec Char :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Double :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Float :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Int :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Word :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec (Ptr ()) :: Type -> Type) | Since: base-4.9.0.0 |
| Functor ((,,) a b) | Since: base-4.14.0.0 |
| Arrow a => Functor (WrappedArrow a b) | Since: base-2.1 |
Defined in Control.Applicative Methods fmap :: (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 # (<$) :: a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 # | |
| Functor m => Functor (Kleisli m a) | Since: base-4.14.0.0 |
| Functor (Const m :: Type -> Type) | Since: base-2.1 |
| Functor f => Functor (Ap f) | Since: base-4.12.0.0 |
| Functor f => Functor (Alt f) | Since: base-4.8.0.0 |
| (Applicative f, Monad f) => Functor (WhenMissing f x) | Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods fmap :: (a -> b) -> WhenMissing f x a -> WhenMissing f x b # (<$) :: a -> WhenMissing f x b -> WhenMissing f x a # | |
| Functor m => Functor (IdentityT m) | |
| Functor m => Functor (ErrorT e m) | |
| Functor m => Functor (ExceptT e m) | |
| Functor m => Functor (ReaderT r m) | |
| Functor m => Functor (StateT s m) | |
| Functor m => Functor (StateT s m) | |
| Functor m => Functor (WriterT w m) | |
| Functor m => Functor (WriterT w m) | |
| Functor ((->) r :: Type -> Type) | Since: base-2.1 |
| Functor (K1 i c :: Type -> Type) | Since: base-4.9.0.0 |
| (Functor f, Functor g) => Functor (f :+: g) | Since: base-4.9.0.0 |
| (Functor f, Functor g) => Functor (f :*: g) | Since: base-4.9.0.0 |
| Functor ((,,,) a b c) | Since: base-4.14.0.0 |
| (Functor f, Functor g) => Functor (Product f g) | Since: base-4.9.0.0 |
| (Functor f, Functor g) => Functor (Sum f g) | Since: base-4.9.0.0 |
| Functor f => Functor (WhenMatched f x y) | Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods fmap :: (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b # (<$) :: a -> WhenMatched f x y b -> WhenMatched f x y a # | |
| (Applicative f, Monad f) => Functor (WhenMissing f k x) | Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods fmap :: (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b # (<$) :: a -> WhenMissing f k x b -> WhenMissing f k x a # | |
| Functor (ContT r m) | |
| Functor f => Functor (M1 i c f) | Since: base-4.9.0.0 |
| (Functor f, Functor g) => Functor (f :.: g) | Since: base-4.9.0.0 |
| (Functor f, Functor g) => Functor (Compose f g) | Since: base-4.9.0.0 |
| Functor f => Functor (WhenMatched f k x y) | Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods fmap :: (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b # (<$) :: a -> WhenMatched f k x y b -> WhenMatched f k x y a # | |
| Functor m => Functor (RWST r w s m) | |
| Functor m => Functor (RWST r w s m) | |
Basic numeric class.
The Haskell Report defines no laws for Num. However, ( and +)( are
customarily expected to define a ring and have the following properties:*)
- Associativity of
(+) (x + y) + z=x + (y + z)- Commutativity of
(+) x + y=y + xis the additive identityfromInteger0x + fromInteger 0=xnegategives the additive inversex + negate x=fromInteger 0- Associativity of
(*) (x * y) * z=x * (y * z)is the multiplicative identityfromInteger1x * fromInteger 1=xandfromInteger 1 * x=x- Distributivity of
(with respect to*)(+) a * (b + c)=(a * b) + (a * c)and(b + c) * a=(b * a) + (c * a)
Note that it isn't customarily expected that a type instance of both Num
and Ord implement an ordered ring. Indeed, in base only Integer and
Rational do.
Methods
Unary negation.
Absolute value.
Sign of a number.
The functions abs and signum should satisfy the law:
abs x * signum x == x
For real numbers, the signum is either -1 (negative), 0 (zero)
or 1 (positive).
fromInteger :: Integer -> a #
Conversion from an Integer.
An integer literal represents the application of the function
fromInteger to the appropriate value of type Integer,
so such literals have type (.Num a) => a
Instances
The Ord class is used for totally ordered datatypes.
Instances of Ord can be derived for any user-defined datatype whose
constituent types are in Ord. The declared order of the constructors in
the data declaration determines the ordering in derived Ord instances. The
Ordering datatype allows a single comparison to determine the precise
ordering of two objects.
The Haskell Report defines no laws for Ord. However, <= is customarily
expected to implement a non-strict partial order and have the following
properties:
- Transitivity
- if
x <= y && y <= z=True, thenx <= z=True - Reflexivity
x <= x=True- Antisymmetry
- if
x <= y && y <= x=True, thenx == y=True
Note that the following operator interactions are expected to hold:
x >= y=y <= xx < y=x <= y && x /= yx > y=y < xx < y=compare x y == LTx > y=compare x y == GTx == y=compare x y == EQmin x y == if x <= y then x else y=Truemax x y == if x >= y then x else y=True
Note that (7.) and (8.) do not require min and max to return either of
their arguments. The result is merely required to equal one of the
arguments in terms of (==).
Minimal complete definition: either compare or <=.
Using compare can be more efficient for complex types.
Methods
compare :: a -> a -> Ordering #
(<) :: a -> a -> Bool infix 4 #
(<=) :: a -> a -> Bool infix 4 #
(>) :: a -> a -> Bool infix 4 #
Instances
| Ord Bool | |
| Ord Char | |
| Ord Double | Note that due to the presence of
Also note that, due to the same,
|
| Ord Float | Note that due to the presence of
Also note that, due to the same,
|
| Ord Int | |
| Ord Int8 | Since: base-2.1 |
| Ord Int16 | Since: base-2.1 |
| Ord Int32 | Since: base-2.1 |
| Ord Int64 | Since: base-2.1 |
| Ord Integer | |
| Ord Natural | Since: base-4.8.0.0 |
| Ord Ordering | |
Defined in GHC.Classes | |
| Ord Word | |
| Ord Word8 | Since: base-2.1 |
| Ord Word16 | Since: base-2.1 |
| Ord Word32 | Since: base-2.1 |
| Ord Word64 | Since: base-2.1 |
| Ord SomeTypeRep | |
Defined in Data.Typeable.Internal Methods compare :: SomeTypeRep -> SomeTypeRep -> Ordering # (<) :: SomeTypeRep -> SomeTypeRep -> Bool # (<=) :: SomeTypeRep -> SomeTypeRep -> Bool # (>) :: SomeTypeRep -> SomeTypeRep -> Bool # (>=) :: SomeTypeRep -> SomeTypeRep -> Bool # max :: SomeTypeRep -> SomeTypeRep -> SomeTypeRep # min :: SomeTypeRep -> SomeTypeRep -> SomeTypeRep # | |
| Ord () | |
| Ord TyCon | |
| Ord FontSet | |
Defined in Graphics.X11.Xlib.Extras | |
| Ord XRRScreenConfiguration | |
Defined in Graphics.X11.Xrandr Methods compare :: XRRScreenConfiguration -> XRRScreenConfiguration -> Ordering # (<) :: XRRScreenConfiguration -> XRRScreenConfiguration -> Bool # (<=) :: XRRScreenConfiguration -> XRRScreenConfiguration -> Bool # (>) :: XRRScreenConfiguration -> XRRScreenConfiguration -> Bool # (>=) :: XRRScreenConfiguration -> XRRScreenConfiguration -> Bool # max :: XRRScreenConfiguration -> XRRScreenConfiguration -> XRRScreenConfiguration # min :: XRRScreenConfiguration -> XRRScreenConfiguration -> XRRScreenConfiguration # | |
| Ord XEvent | |
| Ord FontStruct | |
Defined in Graphics.X11.Xlib.Font Methods compare :: FontStruct -> FontStruct -> Ordering # (<) :: FontStruct -> FontStruct -> Bool # (<=) :: FontStruct -> FontStruct -> Bool # (>) :: FontStruct -> FontStruct -> Bool # (>=) :: FontStruct -> FontStruct -> Bool # max :: FontStruct -> FontStruct -> FontStruct # min :: FontStruct -> FontStruct -> FontStruct # | |
| Ord Region | |
| Ord Display | |
Defined in Graphics.X11.Xlib.Types | |
| Ord Screen | |
| Ord Visual | |
| Ord GC | |
| Ord GCValues | |
Defined in Graphics.X11.Xlib.Types | |
| Ord SetWindowAttributes | |
Defined in Graphics.X11.Xlib.Types Methods compare :: SetWindowAttributes -> SetWindowAttributes -> Ordering # (<) :: SetWindowAttributes -> SetWindowAttributes -> Bool # (<=) :: SetWindowAttributes -> SetWindowAttributes -> Bool # (>) :: SetWindowAttributes -> SetWindowAttributes -> Bool # (>=) :: SetWindowAttributes -> SetWindowAttributes -> Bool # max :: SetWindowAttributes -> SetWindowAttributes -> SetWindowAttributes # min :: SetWindowAttributes -> SetWindowAttributes -> SetWindowAttributes # | |
| Ord Image | |
| Ord Unique | |
| Ord ThreadId | Since: base-4.2.0.0 |
Defined in GHC.Conc.Sync | |
| Ord BlockReason | Since: base-4.3.0.0 |
Defined in GHC.Conc.Sync Methods compare :: BlockReason -> BlockReason -> Ordering # (<) :: BlockReason -> BlockReason -> Bool # (<=) :: BlockReason -> BlockReason -> Bool # (>) :: BlockReason -> BlockReason -> Bool # (>=) :: BlockReason -> BlockReason -> Bool # max :: BlockReason -> BlockReason -> BlockReason # min :: BlockReason -> BlockReason -> BlockReason # | |
| Ord ThreadStatus | Since: base-4.3.0.0 |
Defined in GHC.Conc.Sync Methods compare :: ThreadStatus -> ThreadStatus -> Ordering # (<) :: ThreadStatus -> ThreadStatus -> Bool # (<=) :: ThreadStatus -> ThreadStatus -> Bool # (>) :: ThreadStatus -> ThreadStatus -> Bool # (>=) :: ThreadStatus -> ThreadStatus -> Bool # max :: ThreadStatus -> ThreadStatus -> ThreadStatus # min :: ThreadStatus -> ThreadStatus -> ThreadStatus # | |
| Ord CDev | |
| Ord CIno | |
| Ord CMode | |
| Ord COff | |
| Ord CPid | |
| Ord CSsize | |
| Ord CGid | |
| Ord CNlink | |
| Ord CUid | |
| Ord CCc | |
| Ord CSpeed | |
| Ord CTcflag | |
| Ord CRLim | |
| Ord CBlkSize | |
Defined in System.Posix.Types | |
| Ord CBlkCnt | |
| Ord CClockId | |
Defined in System.Posix.Types | |
| Ord CFsBlkCnt | |
| Ord CFsFilCnt | |
| Ord CId | |
| Ord CKey | |
| Ord CTimer | |
| Ord CSocklen | |
Defined in System.Posix.Types | |
| Ord CNfds | |
| Ord Fd | |
| Ord AsyncException | Since: base-4.2.0.0 |
Defined in GHC.IO.Exception Methods compare :: AsyncException -> AsyncException -> Ordering # (<) :: AsyncException -> AsyncException -> Bool # (<=) :: AsyncException -> AsyncException -> Bool # (>) :: AsyncException -> AsyncException -> Bool # (>=) :: AsyncException -> AsyncException -> Bool # max :: AsyncException -> AsyncException -> AsyncException # min :: AsyncException -> AsyncException -> AsyncException # | |
| Ord ArrayException | Since: base-4.2.0.0 |
Defined in GHC.IO.Exception Methods compare :: ArrayException -> ArrayException -> Ordering # (<) :: ArrayException -> ArrayException -> Bool # (<=) :: ArrayException -> ArrayException -> Bool # (>) :: ArrayException -> ArrayException -> Bool # (>=) :: ArrayException -> ArrayException -> Bool # max :: ArrayException -> ArrayException -> ArrayException # min :: ArrayException -> ArrayException -> ArrayException # | |
| Ord ExitCode | |
Defined in GHC.IO.Exception | |
| Ord BufferMode | Since: base-4.2.0.0 |
Defined in GHC.IO.Handle.Types Methods compare :: BufferMode -> BufferMode -> Ordering # (<) :: BufferMode -> BufferMode -> Bool # (<=) :: BufferMode -> BufferMode -> Bool # (>) :: BufferMode -> BufferMode -> Bool # (>=) :: BufferMode -> BufferMode -> Bool # max :: BufferMode -> BufferMode -> BufferMode # min :: BufferMode -> BufferMode -> BufferMode # | |
| Ord Newline | Since: base-4.3.0.0 |
| Ord NewlineMode | Since: base-4.3.0.0 |
Defined in GHC.IO.Handle.Types Methods compare :: NewlineMode -> NewlineMode -> Ordering # (<) :: NewlineMode -> NewlineMode -> Bool # (<=) :: NewlineMode -> NewlineMode -> Bool # (>) :: NewlineMode -> NewlineMode -> Bool # (>=) :: NewlineMode -> NewlineMode -> Bool # max :: NewlineMode -> NewlineMode -> NewlineMode # min :: NewlineMode -> NewlineMode -> NewlineMode # | |
| Ord SeekMode | Since: base-4.2.0.0 |
Defined in GHC.IO.Device | |
| Ord ErrorCall | Since: base-4.7.0.0 |
| Ord ArithException | Since: base-3.0 |
Defined in GHC.Exception.Type Methods compare :: ArithException -> ArithException -> Ordering # (<) :: ArithException -> ArithException -> Bool # (<=) :: ArithException -> ArithException -> Bool # (>) :: ArithException -> ArithException -> Bool # (>=) :: ArithException -> ArithException -> Bool # max :: ArithException -> ArithException -> ArithException # min :: ArithException -> ArithException -> ArithException # | |
| Ord All | Since: base-2.1 |
| Ord Any | Since: base-2.1 |
| Ord Fixity | Since: base-4.6.0.0 |
| Ord Associativity | Since: base-4.6.0.0 |
Defined in GHC.Generics Methods compare :: Associativity -> Associativity -> Ordering # (<) :: Associativity -> Associativity -> Bool # (<=) :: Associativity -> Associativity -> Bool # (>) :: Associativity -> Associativity -> Bool # (>=) :: Associativity -> Associativity -> Bool # max :: Associativity -> Associativity -> Associativity # min :: Associativity -> Associativity -> Associativity # | |
| Ord SourceUnpackedness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: SourceUnpackedness -> SourceUnpackedness -> Ordering # (<) :: SourceUnpackedness -> SourceUnpackedness -> Bool # (<=) :: SourceUnpackedness -> SourceUnpackedness -> Bool # (>) :: SourceUnpackedness -> SourceUnpackedness -> Bool # (>=) :: SourceUnpackedness -> SourceUnpackedness -> Bool # max :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness # min :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness # | |
| Ord SourceStrictness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: SourceStrictness -> SourceStrictness -> Ordering # (<) :: SourceStrictness -> SourceStrictness -> Bool # (<=) :: SourceStrictness -> SourceStrictness -> Bool # (>) :: SourceStrictness -> SourceStrictness -> Bool # (>=) :: SourceStrictness -> SourceStrictness -> Bool # max :: SourceStrictness -> SourceStrictness -> SourceStrictness # min :: SourceStrictness -> SourceStrictness -> SourceStrictness # | |
| Ord DecidedStrictness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: DecidedStrictness -> DecidedStrictness -> Ordering # (<) :: DecidedStrictness -> DecidedStrictness -> Bool # (<=) :: DecidedStrictness -> DecidedStrictness -> Bool # (>) :: DecidedStrictness -> DecidedStrictness -> Bool # (>=) :: DecidedStrictness -> DecidedStrictness -> Bool # max :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness # min :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness # | |
| Ord CChar | |
| Ord CSChar | |
| Ord CUChar | |
| Ord CShort | |
| Ord CUShort | |
| Ord CInt | |
| Ord CUInt | |
| Ord CLong | |
| Ord CULong | |
| Ord CLLong | |
| Ord CULLong | |
| Ord CBool | |
| Ord CFloat | |
| Ord CDouble | |
| Ord CPtrdiff | |
Defined in Foreign.C.Types | |
| Ord CSize | |
| Ord CWchar | |
| Ord CSigAtomic | |
Defined in Foreign.C.Types Methods compare :: CSigAtomic -> CSigAtomic -> Ordering # (<) :: CSigAtomic -> CSigAtomic -> Bool # (<=) :: CSigAtomic -> CSigAtomic -> Bool # (>) :: CSigAtomic -> CSigAtomic -> Bool # (>=) :: CSigAtomic -> CSigAtomic -> Bool # max :: CSigAtomic -> CSigAtomic -> CSigAtomic # min :: CSigAtomic -> CSigAtomic -> CSigAtomic # | |
| Ord CClock | |
| Ord CTime | |
| Ord CUSeconds | |
| Ord CSUSeconds | |
Defined in Foreign.C.Types Methods compare :: CSUSeconds -> CSUSeconds -> Ordering # (<) :: CSUSeconds -> CSUSeconds -> Bool # (<=) :: CSUSeconds -> CSUSeconds -> Bool # (>) :: CSUSeconds -> CSUSeconds -> Bool # (>=) :: CSUSeconds -> CSUSeconds -> Bool # max :: CSUSeconds -> CSUSeconds -> CSUSeconds # min :: CSUSeconds -> CSUSeconds -> CSUSeconds # | |
| Ord CIntPtr | |
| Ord CUIntPtr | |
Defined in Foreign.C.Types | |
| Ord CIntMax | |
| Ord CUIntMax | |
Defined in Foreign.C.Types | |
| Ord WordPtr | |
| Ord IntPtr | |
| Ord IOMode | Since: base-4.2.0.0 |
| Ord Fingerprint | Since: base-4.4.0.0 |
Defined in GHC.Fingerprint.Type Methods compare :: Fingerprint -> Fingerprint -> Ordering # (<) :: Fingerprint -> Fingerprint -> Bool # (<=) :: Fingerprint -> Fingerprint -> Bool # (>) :: Fingerprint -> Fingerprint -> Bool # (>=) :: Fingerprint -> Fingerprint -> Bool # max :: Fingerprint -> Fingerprint -> Fingerprint # min :: Fingerprint -> Fingerprint -> Fingerprint # | |
| Ord GeneralCategory | Since: base-2.1 |
Defined in GHC.Unicode Methods compare :: GeneralCategory -> GeneralCategory -> Ordering # (<) :: GeneralCategory -> GeneralCategory -> Bool # (<=) :: GeneralCategory -> GeneralCategory -> Bool # (>) :: GeneralCategory -> GeneralCategory -> Bool # (>=) :: GeneralCategory -> GeneralCategory -> Bool # max :: GeneralCategory -> GeneralCategory -> GeneralCategory # min :: GeneralCategory -> GeneralCategory -> GeneralCategory # | |
| Ord ShortByteString | |
Defined in Data.ByteString.Short.Internal Methods compare :: ShortByteString -> ShortByteString -> Ordering # (<) :: ShortByteString -> ShortByteString -> Bool # (<=) :: ShortByteString -> ShortByteString -> Bool # (>) :: ShortByteString -> ShortByteString -> Bool # (>=) :: ShortByteString -> ShortByteString -> Bool # max :: ShortByteString -> ShortByteString -> ShortByteString # min :: ShortByteString -> ShortByteString -> ShortByteString # | |
| Ord ByteString | |
Defined in Data.ByteString.Internal Methods compare :: ByteString -> ByteString -> Ordering # (<) :: ByteString -> ByteString -> Bool # (<=) :: ByteString -> ByteString -> Bool # (>) :: ByteString -> ByteString -> Bool # (>=) :: ByteString -> ByteString -> Bool # max :: ByteString -> ByteString -> ByteString # min :: ByteString -> ByteString -> ByteString # | |
| Ord IntSet | |
| Ord FileType | |
Defined in System.Directory.Internal.Common | |
| Ord Permissions | |
Defined in System.Directory.Internal.Common Methods compare :: Permissions -> Permissions -> Ordering # (<) :: Permissions -> Permissions -> Bool # (<=) :: Permissions -> Permissions -> Bool # (>) :: Permissions -> Permissions -> Bool # (>=) :: Permissions -> Permissions -> Bool # max :: Permissions -> Permissions -> Permissions # min :: Permissions -> Permissions -> Permissions # | |
| Ord XdgDirectory | |
Defined in System.Directory.Internal.Common Methods compare :: XdgDirectory -> XdgDirectory -> Ordering # (<) :: XdgDirectory -> XdgDirectory -> Bool # (<=) :: XdgDirectory -> XdgDirectory -> Bool # (>) :: XdgDirectory -> XdgDirectory -> Bool # (>=) :: XdgDirectory -> XdgDirectory -> Bool # max :: XdgDirectory -> XdgDirectory -> XdgDirectory # min :: XdgDirectory -> XdgDirectory -> XdgDirectory # | |
| Ord XdgDirectoryList | |
Defined in System.Directory.Internal.Common Methods compare :: XdgDirectoryList -> XdgDirectoryList -> Ordering # (<) :: XdgDirectoryList -> XdgDirectoryList -> Bool # (<=) :: XdgDirectoryList -> XdgDirectoryList -> Bool # (>) :: XdgDirectoryList -> XdgDirectoryList -> Bool # (>=) :: XdgDirectoryList -> XdgDirectoryList -> Bool # max :: XdgDirectoryList -> XdgDirectoryList -> XdgDirectoryList # min :: XdgDirectoryList -> XdgDirectoryList -> XdgDirectoryList # | |
| Ord BigNat | |
| Ord Cardinality | |
Defined in System.Random.GFinite | |
| Ord TimeLocale | |
Defined in Data.Time.Format.Locale Methods compare :: TimeLocale -> TimeLocale -> Ordering # (<) :: TimeLocale -> TimeLocale -> Bool # (<=) :: TimeLocale -> TimeLocale -> Bool # (>) :: TimeLocale -> TimeLocale -> Bool # (>=) :: TimeLocale -> TimeLocale -> Bool # max :: TimeLocale -> TimeLocale -> TimeLocale # min :: TimeLocale -> TimeLocale -> TimeLocale # | |
| Ord LocalTime | |
Defined in Data.Time.LocalTime.Internal.LocalTime | |
| Ord TimeOfDay | |
Defined in Data.Time.LocalTime.Internal.TimeOfDay | |
| Ord TimeZone | |
Defined in Data.Time.LocalTime.Internal.TimeZone | |
| Ord UniversalTime | |
Defined in Data.Time.Clock.Internal.UniversalTime Methods compare :: UniversalTime -> UniversalTime -> Ordering # (<) :: UniversalTime -> UniversalTime -> Bool # (<=) :: UniversalTime -> UniversalTime -> Bool # (>) :: UniversalTime -> UniversalTime -> Bool # (>=) :: UniversalTime -> UniversalTime -> Bool # max :: UniversalTime -> UniversalTime -> UniversalTime # min :: UniversalTime -> UniversalTime -> UniversalTime # | |
| Ord UTCTime | |
Defined in Data.Time.Clock.Internal.UTCTime | |
| Ord NominalDiffTime | |
Defined in Data.Time.Clock.Internal.NominalDiffTime Methods compare :: NominalDiffTime -> NominalDiffTime -> Ordering # (<) :: NominalDiffTime -> NominalDiffTime -> Bool # (<=) :: NominalDiffTime -> NominalDiffTime -> Bool # (>) :: NominalDiffTime -> NominalDiffTime -> Bool # (>=) :: NominalDiffTime -> NominalDiffTime -> Bool # max :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime # min :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime # | |
| Ord Day | |
| Ord ScreenId | |
Defined in XMonad.Core | |
| Ord XComposeStatus | |
Defined in Graphics.X11.Xlib.Misc Methods compare :: XComposeStatus -> XComposeStatus -> Ordering # (<) :: XComposeStatus -> XComposeStatus -> Bool # (<=) :: XComposeStatus -> XComposeStatus -> Bool # (>) :: XComposeStatus -> XComposeStatus -> Bool # (>=) :: XComposeStatus -> XComposeStatus -> Bool # | |
| Ord XErrorEvent | |
Defined in Graphics.X11.Xlib.Misc | |
| Ord XTextProperty | |
Defined in Graphics.X11.Xlib.Misc Methods compare :: XTextProperty -> XTextProperty -> Ordering # (<) :: XTextProperty -> XTextProperty -> Bool # (<=) :: XTextProperty -> XTextProperty -> Bool # (>) :: XTextProperty -> XTextProperty -> Bool # (>=) :: XTextProperty -> XTextProperty -> Bool # | |
| Ord FdSet | |
| Ord TimeZone | |
Defined in Graphics.X11.Xlib.Event | |
| Ord Alignment Source # | |
| Ord Orientation Source # | |
Defined in XMonad.Layout.HintedTile Methods compare :: Orientation -> Orientation -> Ordering # (<) :: Orientation -> Orientation -> Bool # (<=) :: Orientation -> Orientation -> Bool # (>) :: Orientation -> Orientation -> Bool # (>=) :: Orientation -> Orientation -> Bool # max :: Orientation -> Orientation -> Orientation # min :: Orientation -> Orientation -> Orientation # | |
| Ord PhysicalScreen Source # | |
Defined in XMonad.Actions.PhysicalScreens Methods compare :: PhysicalScreen -> PhysicalScreen -> Ordering # (<) :: PhysicalScreen -> PhysicalScreen -> Bool # (<=) :: PhysicalScreen -> PhysicalScreen -> Bool # (>) :: PhysicalScreen -> PhysicalScreen -> Bool # (>=) :: PhysicalScreen -> PhysicalScreen -> Bool # max :: PhysicalScreen -> PhysicalScreen -> PhysicalScreen # min :: PhysicalScreen -> PhysicalScreen -> PhysicalScreen # | |
| Ord NamedWindow Source # | |
Defined in XMonad.Util.NamedWindows Methods compare :: NamedWindow -> NamedWindow -> Ordering # (<) :: NamedWindow -> NamedWindow -> Bool # (<=) :: NamedWindow -> NamedWindow -> Bool # (>) :: NamedWindow -> NamedWindow -> Bool # (>=) :: NamedWindow -> NamedWindow -> Bool # max :: NamedWindow -> NamedWindow -> NamedWindow # min :: NamedWindow -> NamedWindow -> NamedWindow # | |
| Ord ScreenCorner Source # | |
Defined in XMonad.Hooks.ScreenCorners Methods compare :: ScreenCorner -> ScreenCorner -> Ordering # (<) :: ScreenCorner -> ScreenCorner -> Bool # (<=) :: ScreenCorner -> ScreenCorner -> Bool # (>) :: ScreenCorner -> ScreenCorner -> Bool # (>=) :: ScreenCorner -> ScreenCorner -> Bool # max :: ScreenCorner -> ScreenCorner -> ScreenCorner # min :: ScreenCorner -> ScreenCorner -> ScreenCorner # | |
| Ord Direction2D Source # | |
Defined in XMonad.Util.Types Methods compare :: Direction2D -> Direction2D -> Ordering # (<) :: Direction2D -> Direction2D -> Bool # (<=) :: Direction2D -> Direction2D -> Bool # (>) :: Direction2D -> Direction2D -> Bool # (>=) :: Direction2D -> Direction2D -> Bool # max :: Direction2D -> Direction2D -> Direction2D # min :: Direction2D -> Direction2D -> Direction2D # | |
| Ord Navigation2D Source # | |
Defined in XMonad.Actions.Navigation2D Methods compare :: Navigation2D -> Navigation2D -> Ordering # (<) :: Navigation2D -> Navigation2D -> Bool # (<=) :: Navigation2D -> Navigation2D -> Bool # (>) :: Navigation2D -> Navigation2D -> Bool # (>=) :: Navigation2D -> Navigation2D -> Bool # max :: Navigation2D -> Navigation2D -> Navigation2D # min :: Navigation2D -> Navigation2D -> Navigation2D # | |
| Ord a => Ord [a] | |
| Ord a => Ord (Maybe a) | Since: base-2.1 |
| Integral a => Ord (Ratio a) | Since: base-2.0.1 |
| Ord (Ptr a) | Since: base-2.1 |
| Ord (FunPtr a) | |
Defined in GHC.Ptr | |
| Ord p => Ord (Par1 p) | Since: base-4.7.0.0 |
| Ord (ForeignPtr a) | Since: base-2.1 |
Defined in GHC.ForeignPtr Methods compare :: ForeignPtr a -> ForeignPtr a -> Ordering # (<) :: ForeignPtr a -> ForeignPtr a -> Bool # (<=) :: ForeignPtr a -> ForeignPtr a -> Bool # (>) :: ForeignPtr a -> ForeignPtr a -> Bool # (>=) :: ForeignPtr a -> ForeignPtr a -> Bool # max :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a # min :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a # | |
| Ord a => Ord (ZipList a) | Since: base-4.7.0.0 |
| Ord a => Ord (Identity a) | Since: base-4.8.0.0 |
Defined in Data.Functor.Identity | |
| Ord a => Ord (First a) | Since: base-2.1 |
| Ord a => Ord (Last a) | Since: base-2.1 |
| Ord a => Ord (Dual a) | Since: base-2.1 |
| Ord a => Ord (Sum a) | Since: base-2.1 |
| Ord a => Ord (Product a) | Since: base-2.1 |
| Ord a => Ord (Down a) | Since: base-4.6.0.0 |
| Ord a => Ord (NonEmpty a) | Since: base-4.9.0.0 |
| Ord a => Ord (IntMap a) | |
Defined in Data.IntMap.Internal | |
| Ord a => Ord (Tree a) | Since: containers-0.6.5 |
| Ord a => Ord (Seq a) | |
| Ord a => Ord (ViewL a) | |
Defined in Data.Sequence.Internal | |
| Ord a => Ord (ViewR a) | |
Defined in Data.Sequence.Internal | |
| Ord a => Ord (Set a) | |
| Ord g => Ord (StateGen g) | |
Defined in System.Random.Internal | |
| (Ord a, Ord b) => Ord (Either a b) | Since: base-2.1 |
| Ord (V1 p) | Since: base-4.9.0.0 |
| Ord (U1 p) | Since: base-4.7.0.0 |
| Ord (TypeRep a) | Since: base-4.4.0.0 |
| (Ord a, Ord b) => Ord (a, b) | |
| (Ix i, Ord e) => Ord (Array i e) | Since: base-2.1 |
| Ord (Proxy s) | Since: base-4.7.0.0 |
| (Ord k, Ord v) => Ord (Map k v) | |
| (Ord1 m, Ord a) => Ord (ListT m a) | |
| (Ord1 m, Ord a) => Ord (MaybeT m a) | |
Defined in Control.Monad.Trans.Maybe | |
| Ord (f p) => Ord (Rec1 f p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
| Ord (URec (Ptr ()) p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: URec (Ptr ()) p -> URec (Ptr ()) p -> Ordering # (<) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool # (<=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool # (>) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool # (>=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool # max :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p # min :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p # | |
| Ord (URec Char p) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| Ord (URec Double p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: URec Double p -> URec Double p -> Ordering # (<) :: URec Double p -> URec Double p -> Bool # (<=) :: URec Double p -> URec Double p -> Bool # (>) :: URec Double p -> URec Double p -> Bool # (>=) :: URec Double p -> URec Double p -> Bool # | |
| Ord (URec Float p) | |
Defined in GHC.Generics | |
| Ord (URec Int p) | Since: base-4.9.0.0 |
| Ord (URec Word p) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| (Ord a, Ord b, Ord c) => Ord (a, b, c) | |
| Ord a => Ord (Const a b) | Since: base-4.9.0.0 |
| Ord (f a) => Ord (Ap f a) | Since: base-4.12.0.0 |
| Ord (f a) => Ord (Alt f a) | Since: base-4.8.0.0 |
Defined in Data.Semigroup.Internal | |
| Ord (a :~: b) | Since: base-4.7.0.0 |
Defined in Data.Type.Equality | |
| (Ord1 f, Ord a) => Ord (IdentityT f a) | |
Defined in Control.Monad.Trans.Identity Methods compare :: IdentityT f a -> IdentityT f a -> Ordering # (<) :: IdentityT f a -> IdentityT f a -> Bool # (<=) :: IdentityT f a -> IdentityT f a -> Bool # (>) :: IdentityT f a -> IdentityT f a -> Bool # (>=) :: IdentityT f a -> IdentityT f a -> Bool # | |
| (Ord e, Ord1 m, Ord a) => Ord (ErrorT e m a) | |
Defined in Control.Monad.Trans.Error | |
| (Ord e, Ord1 m, Ord a) => Ord (ExceptT e m a) | |
Defined in Control.Monad.Trans.Except Methods compare :: ExceptT e m a -> ExceptT e m a -> Ordering # (<) :: ExceptT e m a -> ExceptT e m a -> Bool # (<=) :: ExceptT e m a -> ExceptT e m a -> Bool # (>) :: ExceptT e m a -> ExceptT e m a -> Bool # (>=) :: ExceptT e m a -> ExceptT e m a -> Bool # | |
| (Ord w, Ord1 m, Ord a) => Ord (WriterT w m a) | |
Defined in Control.Monad.Trans.Writer.Lazy Methods compare :: WriterT w m a -> WriterT w m a -> Ordering # (<) :: WriterT w m a -> WriterT w m a -> Bool # (<=) :: WriterT w m a -> WriterT w m a -> Bool # (>) :: WriterT w m a -> WriterT w m a -> Bool # (>=) :: WriterT w m a -> WriterT w m a -> Bool # | |
| (Ord w, Ord1 m, Ord a) => Ord (WriterT w m a) | |
Defined in Control.Monad.Trans.Writer.Strict Methods compare :: WriterT w m a -> WriterT w m a -> Ordering # (<) :: WriterT w m a -> WriterT w m a -> Bool # (<=) :: WriterT w m a -> WriterT w m a -> Bool # (>) :: WriterT w m a -> WriterT w m a -> Bool # (>=) :: WriterT w m a -> WriterT w m a -> Bool # | |
| Ord c => Ord (K1 i c p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
| (Ord (f p), Ord (g p)) => Ord ((f :+: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
| (Ord (f p), Ord (g p)) => Ord ((f :*: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
| (Ord a, Ord b, Ord c, Ord d) => Ord (a, b, c, d) | |
Defined in GHC.Classes | |
| (Ord1 f, Ord1 g, Ord a) => Ord (Product f g a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Product Methods compare :: Product f g a -> Product f g a -> Ordering # (<) :: Product f g a -> Product f g a -> Bool # (<=) :: Product f g a -> Product f g a -> Bool # (>) :: Product f g a -> Product f g a -> Bool # (>=) :: Product f g a -> Product f g a -> Bool # | |
| (Ord1 f, Ord1 g, Ord a) => Ord (Sum f g a) | Since: base-4.9.0.0 |
| Ord (a :~~: b) | Since: base-4.10.0.0 |
| Ord (f p) => Ord (M1 i c f p) | Since: base-4.7.0.0 |
| Ord (f (g p)) => Ord ((f :.: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
| (Ord a, Ord b, Ord c, Ord d, Ord e) => Ord (a, b, c, d, e) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e) -> (a, b, c, d, e) -> Ordering # (<) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool # (<=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool # (>) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool # (>=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool # max :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) # min :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) # | |
| (Ord1 f, Ord1 g, Ord a) => Ord (Compose f g a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Compose Methods compare :: Compose f g a -> Compose f g a -> Ordering # (<) :: Compose f g a -> Compose f g a -> Bool # (<=) :: Compose f g a -> Compose f g a -> Bool # (>) :: Compose f g a -> Compose f g a -> Bool # (>=) :: Compose f g a -> Compose f g a -> Bool # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f) => Ord (a, b, c, d, e, f) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Ordering # (<) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool # (<=) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool # (>) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool # (>=) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool # max :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> (a, b, c, d, e, f) # min :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> (a, b, c, d, e, f) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g) => Ord (a, b, c, d, e, f, g) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Ordering # (<) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool # (<=) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool # (>) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool # (>=) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool # max :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) # min :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h) => Ord (a, b, c, d, e, f, g, h) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Ordering # (<) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool # (<=) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool # (>) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool # (>=) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool # max :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) # min :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i) => Ord (a, b, c, d, e, f, g, h, i) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool # max :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) # min :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j) => Ord (a, b, c, d, e, f, g, h, i, j) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) # min :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k) => Ord (a, b, c, d, e, f, g, h, i, j, k) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) # min :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l) => Ord (a, b, c, d, e, f, g, h, i, j, k, l) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) # min :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) # min :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m, Ord n) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m, n) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) # min :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) # | |
| (Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m, Ord n, Ord o) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) | |
Defined in GHC.Classes Methods compare :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Ordering # (<) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool # (<=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool # (>) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool # (>=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool # max :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) # min :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) # | |
Parsing of Strings, producing values.
Derived instances of Read make the following assumptions, which
derived instances of Show obey:
- If the constructor is defined to be an infix operator, then the
derived
Readinstance will parse only infix applications of the constructor (not the prefix form). - Associativity is not used to reduce the occurrence of parentheses, although precedence may be.
- If the constructor is defined using record syntax, the derived
Readwill parse only the record-syntax form, and furthermore, the fields must be given in the same order as the original declaration. - The derived
Readinstance allows arbitrary Haskell whitespace between tokens of the input string. Extra parentheses are also allowed.
For example, given the declarations
infixr 5 :^: data Tree a = Leaf a | Tree a :^: Tree a
the derived instance of Read in Haskell 2010 is equivalent to
instance (Read a) => Read (Tree a) where
readsPrec d r = readParen (d > app_prec)
(\r -> [(Leaf m,t) |
("Leaf",s) <- lex r,
(m,t) <- readsPrec (app_prec+1) s]) r
++ readParen (d > up_prec)
(\r -> [(u:^:v,w) |
(u,s) <- readsPrec (up_prec+1) r,
(":^:",t) <- lex s,
(v,w) <- readsPrec (up_prec+1) t]) r
where app_prec = 10
up_prec = 5Note that right-associativity of :^: is unused.
The derived instance in GHC is equivalent to
instance (Read a) => Read (Tree a) where
readPrec = parens $ (prec app_prec $ do
Ident "Leaf" <- lexP
m <- step readPrec
return (Leaf m))
+++ (prec up_prec $ do
u <- step readPrec
Symbol ":^:" <- lexP
v <- step readPrec
return (u :^: v))
where app_prec = 10
up_prec = 5
readListPrec = readListPrecDefaultWhy do both readsPrec and readPrec exist, and why does GHC opt to
implement readPrec in derived Read instances instead of readsPrec?
The reason is that readsPrec is based on the ReadS type, and although
ReadS is mentioned in the Haskell 2010 Report, it is not a very efficient
parser data structure.
readPrec, on the other hand, is based on a much more efficient ReadPrec
datatype (a.k.a "new-style parsers"), but its definition relies on the use
of the RankNTypes language extension. Therefore, readPrec (and its
cousin, readListPrec) are marked as GHC-only. Nevertheless, it is
recommended to use readPrec instead of readsPrec whenever possible
for the efficiency improvements it brings.
As mentioned above, derived Read instances in GHC will implement
readPrec instead of readsPrec. The default implementations of
readsPrec (and its cousin, readList) will simply use readPrec under
the hood. If you are writing a Read instance by hand, it is recommended
to write it like so:
instanceReadT wherereadPrec= ...readListPrec=readListPrecDefault
Methods
Arguments
| :: Int | the operator precedence of the enclosing
context (a number from |
| -> ReadS a |
attempts to parse a value from the front of the string, returning a list of (parsed value, remaining string) pairs. If there is no successful parse, the returned list is empty.
Derived instances of Read and Show satisfy the following:
That is, readsPrec parses the string produced by
showsPrec, and delivers the value that
showsPrec started with.
Instances
class (Num a, Ord a) => Real a where #
Methods
toRational :: a -> Rational #
the rational equivalent of its real argument with full precision
Instances
class (RealFrac a, Floating a) => RealFloat a where #
Efficient, machine-independent access to the components of a floating-point number.
Minimal complete definition
floatRadix, floatDigits, floatRange, decodeFloat, encodeFloat, isNaN, isInfinite, isDenormalized, isNegativeZero, isIEEE
Methods
floatRadix :: a -> Integer #
a constant function, returning the radix of the representation
(often 2)
floatDigits :: a -> Int #
a constant function, returning the number of digits of
floatRadix in the significand
floatRange :: a -> (Int, Int) #
a constant function, returning the lowest and highest values the exponent may assume
decodeFloat :: a -> (Integer, Int) #
The function decodeFloat applied to a real floating-point
number returns the significand expressed as an Integer and an
appropriately scaled exponent (an Int). If
yields decodeFloat x(m,n), then x is equal in value to m*b^^n, where b
is the floating-point radix, and furthermore, either m and n
are both zero or else b^(d-1) <= , where abs m < b^dd is
the value of .
In particular, floatDigits x. If the type
contains a negative zero, also decodeFloat 0 = (0,0).
The result of decodeFloat (-0.0) = (0,0) is unspecified if either of
decodeFloat x or isNaN x is isInfinite xTrue.
encodeFloat :: Integer -> Int -> a #
encodeFloat performs the inverse of decodeFloat in the
sense that for finite x with the exception of -0.0,
.
uncurry encodeFloat (decodeFloat x) = x is one of the two closest representable
floating-point numbers to encodeFloat m nm*b^^n (or ±Infinity if overflow
occurs); usually the closer, but if m contains too many bits,
the result may be rounded in the wrong direction.
exponent corresponds to the second component of decodeFloat.
and for finite nonzero exponent 0 = 0x,
.
If exponent x = snd (decodeFloat x) + floatDigits xx is a finite floating-point number, it is equal in value to
, where significand x * b ^^ exponent xb is the
floating-point radix.
The behaviour is unspecified on infinite or NaN values.
significand :: a -> a #
The first component of decodeFloat, scaled to lie in the open
interval (-1,1), either 0.0 or of absolute value >= 1/b,
where b is the floating-point radix.
The behaviour is unspecified on infinite or NaN values.
scaleFloat :: Int -> a -> a #
multiplies a floating-point number by an integer power of the radix
True if the argument is an IEEE "not-a-number" (NaN) value
isInfinite :: a -> Bool #
True if the argument is an IEEE infinity or negative infinity
isDenormalized :: a -> Bool #
True if the argument is too small to be represented in
normalized format
isNegativeZero :: a -> Bool #
True if the argument is an IEEE negative zero
True if the argument is an IEEE floating point number
a version of arctangent taking two real floating-point arguments.
For real floating x and y, computes the angle
(from the positive x-axis) of the vector from the origin to the
point atan2 y x(x,y). returns a value in the range [atan2 y x-pi,
pi]. It follows the Common Lisp semantics for the origin when
signed zeroes are supported. , with atan2 y 1y in a type
that is RealFloat, should return the same value as .
A default definition of atan yatan2 is provided, but implementors
can provide a more accurate implementation.
Instances
class (Real a, Fractional a) => RealFrac a where #
Extracting components of fractions.
Minimal complete definition
Methods
properFraction :: Integral b => a -> (b, a) #
The function properFraction takes a real fractional number x
and returns a pair (n,f) such that x = n+f, and:
nis an integral number with the same sign asx; andfis a fraction with the same type and sign asx, and with absolute value less than1.
The default definitions of the ceiling, floor, truncate
and round functions are in terms of properFraction.
truncate :: Integral b => a -> b #
returns the integer nearest truncate xx between zero and x
round :: Integral b => a -> b #
returns the nearest integer to round xx;
the even integer if x is equidistant between two integers
ceiling :: Integral b => a -> b #
returns the least integer not less than ceiling xx
floor :: Integral b => a -> b #
returns the greatest integer not greater than floor xx
Instances
| RealFrac CFloat | |
| RealFrac CDouble | |
| RealFrac NominalDiffTime | |
Defined in Data.Time.Clock.Internal.NominalDiffTime Methods properFraction :: Integral b => NominalDiffTime -> (b, NominalDiffTime) # truncate :: Integral b => NominalDiffTime -> b # round :: Integral b => NominalDiffTime -> b # ceiling :: Integral b => NominalDiffTime -> b # floor :: Integral b => NominalDiffTime -> b # | |
| Integral a => RealFrac (Ratio a) | Since: base-2.0.1 |
| RealFrac a => RealFrac (Identity a) | Since: base-4.9.0.0 |
| RealFrac a => RealFrac (Down a) | Since: base-4.14.0.0 |
| RealFrac a => RealFrac (Const a b) | Since: base-4.9.0.0 |
Conversion of values to readable Strings.
Derived instances of Show have the following properties, which
are compatible with derived instances of Read:
- The result of
showis a syntactically correct Haskell expression containing only constants, given the fixity declarations in force at the point where the type is declared. It contains only the constructor names defined in the data type, parentheses, and spaces. When labelled constructor fields are used, braces, commas, field names, and equal signs are also used. - If the constructor is defined to be an infix operator, then
showsPrecwill produce infix applications of the constructor. - the representation will be enclosed in parentheses if the
precedence of the top-level constructor in
xis less thand(associativity is ignored). Thus, ifdis0then the result is never surrounded in parentheses; ifdis11it is always surrounded in parentheses, unless it is an atomic expression. - If the constructor is defined using record syntax, then
showwill produce the record-syntax form, with the fields given in the same order as the original declaration.
For example, given the declarations
infixr 5 :^: data Tree a = Leaf a | Tree a :^: Tree a
the derived instance of Show is equivalent to
instance (Show a) => Show (Tree a) where
showsPrec d (Leaf m) = showParen (d > app_prec) $
showString "Leaf " . showsPrec (app_prec+1) m
where app_prec = 10
showsPrec d (u :^: v) = showParen (d > up_prec) $
showsPrec (up_prec+1) u .
showString " :^: " .
showsPrec (up_prec+1) v
where up_prec = 5Note that right-associativity of :^: is ignored. For example,
produces the stringshow(Leaf 1 :^: Leaf 2 :^: Leaf 3)"Leaf 1 :^: (Leaf 2 :^: Leaf 3)".
Methods
Arguments
| :: Int | the operator precedence of the enclosing
context (a number from |
| -> a | the value to be converted to a |
| -> ShowS |
Convert a value to a readable String.
showsPrec should satisfy the law
showsPrec d x r ++ s == showsPrec d x (r ++ s)
Derived instances of Read and Show satisfy the following:
That is, readsPrec parses the string produced by
showsPrec, and delivers the value that showsPrec started with.
Instances
class Monad m => MonadFail (m :: Type -> Type) where #
When a value is bound in do-notation, the pattern on the left
hand side of <- might not match. In this case, this class
provides a function to recover.
A Monad without a MonadFail instance may only be used in conjunction
with pattern that always match, such as newtypes, tuples, data types with
only a single data constructor, and irrefutable patterns (~pat).
Instances of MonadFail should satisfy the following law: fail s should
be a left zero for >>=,
fail s >>= f = fail s
If your Monad is also MonadPlus, a popular definition is
fail _ = mzero
Since: base-4.9.0.0
Instances
class Functor f => Applicative (f :: Type -> Type) where #
A functor with application, providing operations to
A minimal complete definition must include implementations of pure
and of either <*> or liftA2. If it defines both, then they must behave
the same as their default definitions:
(<*>) =liftA2id
liftA2f x y = f<$>x<*>y
Further, any definition must satisfy the following:
- Identity
pureid<*>v = v- Composition
pure(.)<*>u<*>v<*>w = u<*>(v<*>w)- Homomorphism
puref<*>purex =pure(f x)- Interchange
u
<*>purey =pure($y)<*>u
The other methods have the following default definitions, which may be overridden with equivalent specialized implementations:
As a consequence of these laws, the Functor instance for f will satisfy
It may be useful to note that supposing
forall x y. p (q x y) = f x . g y
it follows from the above that
liftA2p (liftA2q u v) =liftA2f u .liftA2g v
If f is also a Monad, it should satisfy
(which implies that pure and <*> satisfy the applicative functor laws).
Methods
Lift a value.
(<*>) :: f (a -> b) -> f a -> f b infixl 4 #
Sequential application.
A few functors support an implementation of <*> that is more
efficient than the default one.
Using ApplicativeDo: 'fs ' can be understood as
the <*> asdo expression
do f <- fs a <- as pure (f a)
(*>) :: f a -> f b -> f b infixl 4 #
Sequence actions, discarding the value of the first argument.
'as ' can be understood as the *> bsdo expression
do as bs
This is a tad complicated for our ApplicativeDo extension
which will give it a Monad constraint. For an Applicative
constraint we write it of the form
do _ <- as b <- bs pure b
(<*) :: f a -> f b -> f a infixl 4 #
Sequence actions, discarding the value of the second argument.
Using ApplicativeDo: 'as ' can be understood as
the <* bsdo expression
do a <- as bs pure a
Instances
| Applicative [] | Since: base-2.1 |
| Applicative Maybe | Since: base-2.1 |
| Applicative IO | Since: base-2.1 |
| Applicative Par1 | Since: base-4.9.0.0 |
| Applicative Complex | Since: base-4.9.0.0 |
| Applicative ZipList | f <$> ZipList xs1 <*> ... <*> ZipList xsN
= ZipList (zipWithN f xs1 ... xsN)where (\a b c -> stimes c [a, b]) <$> ZipList "abcd" <*> ZipList "567" <*> ZipList [1..]
= ZipList (zipWith3 (\a b c -> stimes c [a, b]) "abcd" "567" [1..])
= ZipList {getZipList = ["a5","b6b6","c7c7c7"]}Since: base-2.1 |
| Applicative Identity | Since: base-4.8.0.0 |
| Applicative STM | Since: base-4.8.0.0 |
| Applicative First | Since: base-4.8.0.0 |
| Applicative Last | Since: base-4.8.0.0 |
| Applicative Dual | Since: base-4.8.0.0 |
| Applicative Sum | Since: base-4.8.0.0 |
| Applicative Product | Since: base-4.8.0.0 |
| Applicative Down | Since: base-4.11.0.0 |
| Applicative ReadPrec | Since: base-4.6.0.0 |
| Applicative ReadP | Since: base-4.6.0.0 |
| Applicative NonEmpty | Since: base-4.9.0.0 |
| Applicative Tree | |
| Applicative Seq | Since: containers-0.5.4 |
| Applicative X | |
| Applicative Query | |
| Applicative P | Since: base-4.5.0.0 |
| Applicative PureX Source # | |
| Applicative FocusQuery Source # | |
Defined in XMonad.Hooks.Focus Methods pure :: a -> FocusQuery a # (<*>) :: FocusQuery (a -> b) -> FocusQuery a -> FocusQuery b # liftA2 :: (a -> b -> c) -> FocusQuery a -> FocusQuery b -> FocusQuery c # (*>) :: FocusQuery a -> FocusQuery b -> FocusQuery b # (<*) :: FocusQuery a -> FocusQuery b -> FocusQuery a # | |
| Applicative (Either e) | Since: base-3.0 |
| Applicative (U1 :: Type -> Type) | Since: base-4.9.0.0 |
| Monoid a => Applicative ((,) a) | For tuples, the ("hello ", (+15)) <*> ("world!", 2002)
("hello world!",2017)Since: base-2.1 |
| Monad m => Applicative (WrappedMonad m) | Since: base-2.1 |
Defined in Control.Applicative Methods pure :: a -> WrappedMonad m a # (<*>) :: WrappedMonad m (a -> b) -> WrappedMonad m a -> WrappedMonad m b # liftA2 :: (a -> b -> c) -> WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m c # (*>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b # (<*) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m a # | |
| Arrow a => Applicative (ArrowMonad a) | Since: base-4.6.0.0 |
Defined in Control.Arrow Methods pure :: a0 -> ArrowMonad a a0 # (<*>) :: ArrowMonad a (a0 -> b) -> ArrowMonad a a0 -> ArrowMonad a b # liftA2 :: (a0 -> b -> c) -> ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a c # (*>) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a b # (<*) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a a0 # | |
| Applicative (Proxy :: Type -> Type) | Since: base-4.7.0.0 |
| Applicative m => Applicative (ListT m) | |
| (Functor m, Monad m) => Applicative (MaybeT m) | |
| Applicative m => Applicative (Invisible m) Source # | |
Defined in XMonad.Util.Invisible | |
| Applicative (StateQuery s) Source # | |
Defined in XMonad.Util.WindowState Methods pure :: a -> StateQuery s a # (<*>) :: StateQuery s (a -> b) -> StateQuery s a -> StateQuery s b # liftA2 :: (a -> b -> c) -> StateQuery s a -> StateQuery s b -> StateQuery s c # (*>) :: StateQuery s a -> StateQuery s b -> StateQuery s b # (<*) :: StateQuery s a -> StateQuery s b -> StateQuery s a # | |
| Applicative (TwoD a) Source # | |
| Applicative f => Applicative (Rec1 f) | Since: base-4.9.0.0 |
| (Monoid a, Monoid b) => Applicative ((,,) a b) | Since: base-4.14.0.0 |
| Arrow a => Applicative (WrappedArrow a b) | Since: base-2.1 |
Defined in Control.Applicative Methods pure :: a0 -> WrappedArrow a b a0 # (<*>) :: WrappedArrow a b (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 # liftA2 :: (a0 -> b0 -> c) -> WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b c # (*>) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b b0 # (<*) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 # | |
| Applicative m => Applicative (Kleisli m a) | Since: base-4.14.0.0 |
Defined in Control.Arrow | |
| Monoid m => Applicative (Const m :: Type -> Type) | Since: base-2.0.1 |
| Applicative f => Applicative (Ap f) | Since: base-4.12.0.0 |
| Applicative f => Applicative (Alt f) | Since: base-4.8.0.0 |
| (Applicative f, Monad f) => Applicative (WhenMissing f x) | Equivalent to Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods pure :: a -> WhenMissing f x a # (<*>) :: WhenMissing f x (a -> b) -> WhenMissing f x a -> WhenMissing f x b # liftA2 :: (a -> b -> c) -> WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x c # (*>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b # (<*) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x a # | |
| Applicative m => Applicative (IdentityT m) | |
Defined in Control.Monad.Trans.Identity | |
| (Functor m, Monad m) => Applicative (ErrorT e m) | |
Defined in Control.Monad.Trans.Error | |
| (Functor m, Monad m) => Applicative (ExceptT e m) | |
Defined in Control.Monad.Trans.Except | |
| Applicative m => Applicative (ReaderT r m) | |
Defined in Control.Monad.Trans.Reader | |
| (Functor m, Monad m) => Applicative (StateT s m) | |
Defined in Control.Monad.Trans.State.Lazy | |
| (Functor m, Monad m) => Applicative (StateT s m) | |
Defined in Control.Monad.Trans.State.Strict | |
| (Monoid w, Applicative m) => Applicative (WriterT w m) | |
Defined in Control.Monad.Trans.Writer.Lazy | |
| (Monoid w, Applicative m) => Applicative (WriterT w m) | |
Defined in Control.Monad.Trans.Writer.Strict | |
| Applicative ((->) r :: Type -> Type) | Since: base-2.1 |
| Monoid c => Applicative (K1 i c :: Type -> Type) | Since: base-4.12.0.0 |
| (Applicative f, Applicative g) => Applicative (f :*: g) | Since: base-4.9.0.0 |
| (Monoid a, Monoid b, Monoid c) => Applicative ((,,,) a b c) | Since: base-4.14.0.0 |
Defined in GHC.Base | |
| (Applicative f, Applicative g) => Applicative (Product f g) | Since: base-4.9.0.0 |
Defined in Data.Functor.Product | |
| (Monad f, Applicative f) => Applicative (WhenMatched f x y) | Equivalent to Since: containers-0.5.9 |
Defined in Data.IntMap.Internal Methods pure :: a -> WhenMatched f x y a # (<*>) :: WhenMatched f x y (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b # liftA2 :: (a -> b -> c) -> WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y c # (*>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b # (<*) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y a # | |
| (Applicative f, Monad f) => Applicative (WhenMissing f k x) | Equivalent to Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods pure :: a -> WhenMissing f k x a # (<*>) :: WhenMissing f k x (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b # liftA2 :: (a -> b -> c) -> WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x c # (*>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b # (<*) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x a # | |
| Applicative (ContT r m) | |
Defined in Control.Monad.Trans.Cont | |
| Applicative f => Applicative (M1 i c f) | Since: base-4.9.0.0 |
| (Applicative f, Applicative g) => Applicative (f :.: g) | Since: base-4.9.0.0 |
| (Applicative f, Applicative g) => Applicative (Compose f g) | Since: base-4.9.0.0 |
Defined in Data.Functor.Compose | |
| (Monad f, Applicative f) => Applicative (WhenMatched f k x y) | Equivalent to Since: containers-0.5.9 |
Defined in Data.Map.Internal Methods pure :: a -> WhenMatched f k x y a # (<*>) :: WhenMatched f k x y (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b # liftA2 :: (a -> b -> c) -> WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y c # (*>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b # (<*) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y a # | |
| (Monoid w, Functor m, Monad m) => Applicative (RWST r w s m) | |
Defined in Control.Monad.Trans.RWS.Lazy | |
| (Monoid w, Functor m, Monad m) => Applicative (RWST r w s m) | |
Defined in Control.Monad.Trans.RWS.Strict | |
class Foldable (t :: Type -> Type) where #
Data structures that can be folded.
For example, given a data type
data Tree a = Empty | Leaf a | Node (Tree a) a (Tree a)
a suitable instance would be
instance Foldable Tree where foldMap f Empty = mempty foldMap f (Leaf x) = f x foldMap f (Node l k r) = foldMap f l `mappend` f k `mappend` foldMap f r
This is suitable even for abstract types, as the monoid is assumed
to satisfy the monoid laws. Alternatively, one could define foldr:
instance Foldable Tree where foldr f z Empty = z foldr f z (Leaf x) = f x z foldr f z (Node l k r) = foldr f (f k (foldr f z r)) l
Foldable instances are expected to satisfy the following laws:
foldr f z t = appEndo (foldMap (Endo . f) t ) z
foldl f z t = appEndo (getDual (foldMap (Dual . Endo . flip f) t)) z
fold = foldMap id
length = getSum . foldMap (Sum . const 1)
sum, product, maximum, and minimum should all be essentially
equivalent to foldMap forms, such as
sum = getSum . foldMap Sum
but may be less defined.
If the type is also a Functor instance, it should satisfy
foldMap f = fold . fmap f
which implies that
foldMap f . fmap g = foldMap (f . g)
Methods
foldMap :: Monoid m => (a -> m) -> t a -> m #
Map each element of the structure to a monoid, and combine the results.
foldr :: (a -> b -> b) -> b -> t a -> b #
Right-associative fold of a structure.
In the case of lists, foldr, when applied to a binary operator, a
starting value (typically the right-identity of the operator), and a
list, reduces the list using the binary operator, from right to left:
foldr f z [x1, x2, ..., xn] == x1 `f` (x2 `f` ... (xn `f` z)...)
Note that, since the head of the resulting expression is produced by
an application of the operator to the first element of the list,
foldr can produce a terminating expression from an infinite list.
For a general Foldable structure this should be semantically identical
to,
foldr f z =foldrf z .toList
foldl :: (b -> a -> b) -> b -> t a -> b #
Left-associative fold of a structure.
In the case of lists, foldl, when applied to a binary
operator, a starting value (typically the left-identity of the operator),
and a list, reduces the list using the binary operator, from left to
right:
foldl f z [x1, x2, ..., xn] == (...((z `f` x1) `f` x2) `f`...) `f` xn
Note that to produce the outermost application of the operator the
entire input list must be traversed. This means that foldl' will
diverge if given an infinite list.
Also note that if you want an efficient left-fold, you probably want to
use foldl' instead of foldl. The reason for this is that latter does
not force the "inner" results (e.g. z `f` x1 in the above example)
before applying them to the operator (e.g. to (`f` x2)). This results
in a thunk chain \(\mathcal{O}(n)\) elements long, which then must be
evaluated from the outside-in.
For a general Foldable structure this should be semantically identical
to,
foldl f z =foldlf z .toList
foldr1 :: (a -> a -> a) -> t a -> a #
A variant of foldr that has no base case,
and thus may only be applied to non-empty structures.
foldr1f =foldr1f .toList
foldl1 :: (a -> a -> a) -> t a -> a #
A variant of foldl that has no base case,
and thus may only be applied to non-empty structures.
foldl1f =foldl1f .toList
Test whether the structure is empty. The default implementation is optimized for structures that are similar to cons-lists, because there is no general way to do better.
Since: base-4.8.0.0
Returns the size/length of a finite structure as an Int. The
default implementation is optimized for structures that are similar to
cons-lists, because there is no general way to do better.
Since: base-4.8.0.0
elem :: Eq a => a -> t a -> Bool infix 4 #
Does the element occur in the structure?
Since: base-4.8.0.0
maximum :: Ord a => t a -> a #
The largest element of a non-empty structure.
Since: base-4.8.0.0
minimum :: Ord a => t a -> a #
The least element of a non-empty structure.
Since: base-4.8.0.0
The sum function computes the sum of the numbers of a structure.
Since: base-4.8.0.0
product :: Num a => t a -> a #
The product function computes the product of the numbers of a
structure.
Since: base-4.8.0.0
Instances
| Foldable [] | Since: base-2.1 |
Defined in Data.Foldable Methods fold :: Monoid m => [m] -> m # foldMap :: Monoid m => (a -> m) -> [a] -> m # foldMap' :: Monoid m => (a -> m) -> [a] -> m # foldr :: (a -> b -> b) -> b -> [a] -> b # foldr' :: (a -> b -> b) -> b -> [a] -> b # foldl :: (b -> a -> b) -> b -> [a] -> b # foldl' :: (b -> a -> b) -> b -> [a] -> b # foldr1 :: (a -> a -> a) -> [a] -> a # foldl1 :: (a -> a -> a) -> [a] -> a # elem :: Eq a => a -> [a] -> Bool # maximum :: Ord a => [a] -> a # | |
| Foldable Maybe | Since: base-2.1 |
Defined in Data.Foldable Methods fold :: Monoid m => Maybe m -> m # foldMap :: Monoid m => (a -> m) -> Maybe a -> m # foldMap' :: Monoid m => (a -> m) -> Maybe a -> m # foldr :: (a -> b -> b) -> b -> Maybe a -> b # foldr' :: (a -> b -> b) -> b -> Maybe a -> b # foldl :: (b -> a -> b) -> b -> Maybe a -> b # foldl' :: (b -> a -> b) -> b -> Maybe a -> b # foldr1 :: (a -> a -> a) -> Maybe a -> a # foldl1 :: (a -> a -> a) -> Maybe a -> a # elem :: Eq a => a -> Maybe a -> Bool # maximum :: Ord a => Maybe a -> a # minimum :: Ord a => Maybe a -> a # | |
| Foldable Par1 | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Par1 m -> m # foldMap :: Monoid m => (a -> m) -> Par1 a -> m # foldMap' :: Monoid m => (a -> m) -> Par1 a -> m # foldr :: (a -> b -> b) -> b -> Par1 a -> b # foldr' :: (a -> b -> b) -> b -> Par1 a -> b # foldl :: (b -> a -> b) -> b -> Par1 a -> b # foldl' :: (b -> a -> b) -> b -> Par1 a -> b # foldr1 :: (a -> a -> a) -> Par1 a -> a # foldl1 :: (a -> a -> a) -> Par1 a -> a # elem :: Eq a => a -> Par1 a -> Bool # maximum :: Ord a => Par1 a -> a # | |
| Foldable Complex | Since: base-4.9.0.0 |
Defined in Data.Complex Methods fold :: Monoid m => Complex m -> m # foldMap :: Monoid m => (a -> m) -> Complex a -> m # foldMap' :: Monoid m => (a -> m) -> Complex a -> m # foldr :: (a -> b -> b) -> b -> Complex a -> b # foldr' :: (a -> b -> b) -> b -> Complex a -> b # foldl :: (b -> a -> b) -> b -> Complex a -> b # foldl' :: (b -> a -> b) -> b -> Complex a -> b # foldr1 :: (a -> a -> a) -> Complex a -> a # foldl1 :: (a -> a -> a) -> Complex a -> a # elem :: Eq a => a -> Complex a -> Bool # maximum :: Ord a => Complex a -> a # minimum :: Ord a => Complex a -> a # | |
| Foldable ZipList | Since: base-4.9.0.0 |
Defined in Control.Applicative Methods fold :: Monoid m => ZipList m -> m # foldMap :: Monoid m => (a -> m) -> ZipList a -> m # foldMap' :: Monoid m => (a -> m) -> ZipList a -> m # foldr :: (a -> b -> b) -> b -> ZipList a -> b # foldr' :: (a -> b -> b) -> b -> ZipList a -> b # foldl :: (b -> a -> b) -> b -> ZipList a -> b # foldl' :: (b -> a -> b) -> b -> ZipList a -> b # foldr1 :: (a -> a -> a) -> ZipList a -> a # foldl1 :: (a -> a -> a) -> ZipList a -> a # elem :: Eq a => a -> ZipList a -> Bool # maximum :: Ord a => ZipList a -> a # minimum :: Ord a => ZipList a -> a # | |
| Foldable Identity | Since: base-4.8.0.0 |
Defined in Data.Functor.Identity Methods fold :: Monoid m => Identity m -> m # foldMap :: Monoid m => (a -> m) -> Identity a -> m # foldMap' :: Monoid m => (a -> m) -> Identity a -> m # foldr :: (a -> b -> b) -> b -> Identity a -> b # foldr' :: (a -> b -> b) -> b -> Identity a -> b # foldl :: (b -> a -> b) -> b -> Identity a -> b # foldl' :: (b -> a -> b) -> b -> Identity a -> b # foldr1 :: (a -> a -> a) -> Identity a -> a # foldl1 :: (a -> a -> a) -> Identity a -> a # elem :: Eq a => a -> Identity a -> Bool # maximum :: Ord a => Identity a -> a # minimum :: Ord a => Identity a -> a # | |
| Foldable First | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => First m -> m # foldMap :: Monoid m => (a -> m) -> First a -> m # foldMap' :: Monoid m => (a -> m) -> First a -> m # foldr :: (a -> b -> b) -> b -> First a -> b # foldr' :: (a -> b -> b) -> b -> First a -> b # foldl :: (b -> a -> b) -> b -> First a -> b # foldl' :: (b -> a -> b) -> b -> First a -> b # foldr1 :: (a -> a -> a) -> First a -> a # foldl1 :: (a -> a -> a) -> First a -> a # elem :: Eq a => a -> First a -> Bool # maximum :: Ord a => First a -> a # minimum :: Ord a => First a -> a # | |
| Foldable Last | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Last m -> m # foldMap :: Monoid m => (a -> m) -> Last a -> m # foldMap' :: Monoid m => (a -> m) -> Last a -> m # foldr :: (a -> b -> b) -> b -> Last a -> b # foldr' :: (a -> b -> b) -> b -> Last a -> b # foldl :: (b -> a -> b) -> b -> Last a -> b # foldl' :: (b -> a -> b) -> b -> Last a -> b # foldr1 :: (a -> a -> a) -> Last a -> a # foldl1 :: (a -> a -> a) -> Last a -> a # elem :: Eq a => a -> Last a -> Bool # maximum :: Ord a => Last a -> a # | |
| Foldable Dual | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Dual m -> m # foldMap :: Monoid m => (a -> m) -> Dual a -> m # foldMap' :: Monoid m => (a -> m) -> Dual a -> m # foldr :: (a -> b -> b) -> b -> Dual a -> b # foldr' :: (a -> b -> b) -> b -> Dual a -> b # foldl :: (b -> a -> b) -> b -> Dual a -> b # foldl' :: (b -> a -> b) -> b -> Dual a -> b # foldr1 :: (a -> a -> a) -> Dual a -> a # foldl1 :: (a -> a -> a) -> Dual a -> a # elem :: Eq a => a -> Dual a -> Bool # maximum :: Ord a => Dual a -> a # | |
| Foldable Sum | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Sum m -> m # foldMap :: Monoid m => (a -> m) -> Sum a -> m # foldMap' :: Monoid m => (a -> m) -> Sum a -> m # foldr :: (a -> b -> b) -> b -> Sum a -> b # foldr' :: (a -> b -> b) -> b -> Sum a -> b # foldl :: (b -> a -> b) -> b -> Sum a -> b # foldl' :: (b -> a -> b) -> b -> Sum a -> b # foldr1 :: (a -> a -> a) -> Sum a -> a # foldl1 :: (a -> a -> a) -> Sum a -> a # elem :: Eq a => a -> Sum a -> Bool # maximum :: Ord a => Sum a -> a # | |
| Foldable Product | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Product m -> m # foldMap :: Monoid m => (a -> m) -> Product a -> m # foldMap' :: Monoid m => (a -> m) -> Product a -> m # foldr :: (a -> b -> b) -> b -> Product a -> b # foldr' :: (a -> b -> b) -> b -> Product a -> b # foldl :: (b -> a -> b) -> b -> Product a -> b # foldl' :: (b -> a -> b) -> b -> Product a -> b # foldr1 :: (a -> a -> a) -> Product a -> a # foldl1 :: (a -> a -> a) -> Product a -> a # elem :: Eq a => a -> Product a -> Bool # maximum :: Ord a => Product a -> a # minimum :: Ord a => Product a -> a # | |
| Foldable Down | Since: base-4.12.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Down m -> m # foldMap :: Monoid m => (a -> m) -> Down a -> m # foldMap' :: Monoid m => (a -> m) -> Down a -> m # foldr :: (a -> b -> b) -> b -> Down a -> b # foldr' :: (a -> b -> b) -> b -> Down a -> b # foldl :: (b -> a -> b) -> b -> Down a -> b # foldl' :: (b -> a -> b) -> b -> Down a -> b # foldr1 :: (a -> a -> a) -> Down a -> a # foldl1 :: (a -> a -> a) -> Down a -> a # elem :: Eq a => a -> Down a -> Bool # maximum :: Ord a => Down a -> a # | |
| Foldable NonEmpty | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => NonEmpty m -> m # foldMap :: Monoid m => (a -> m) -> NonEmpty a -> m # foldMap' :: Monoid m => (a -> m) -> NonEmpty a -> m # foldr :: (a -> b -> b) -> b -> NonEmpty a -> b # foldr' :: (a -> b -> b) -> b -> NonEmpty a -> b # foldl :: (b -> a -> b) -> b -> NonEmpty a -> b # foldl' :: (b -> a -> b) -> b -> NonEmpty a -> b # foldr1 :: (a -> a -> a) -> NonEmpty a -> a # foldl1 :: (a -> a -> a) -> NonEmpty a -> a # elem :: Eq a => a -> NonEmpty a -> Bool # maximum :: Ord a => NonEmpty a -> a # minimum :: Ord a => NonEmpty a -> a # | |
| Foldable IntMap | Folds in order of increasing key. |
Defined in Data.IntMap.Internal Methods fold :: Monoid m => IntMap m -> m # foldMap :: Monoid m => (a -> m) -> IntMap a -> m # foldMap' :: Monoid m => (a -> m) -> IntMap a -> m # foldr :: (a -> b -> b) -> b -> IntMap a -> b # foldr' :: (a -> b -> b) -> b -> IntMap a -> b # foldl :: (b -> a -> b) -> b -> IntMap a -> b # foldl' :: (b -> a -> b) -> b -> IntMap a -> b # foldr1 :: (a -> a -> a) -> IntMap a -> a # foldl1 :: (a -> a -> a) -> IntMap a -> a # elem :: Eq a => a -> IntMap a -> Bool # maximum :: Ord a => IntMap a -> a # minimum :: Ord a => IntMap a -> a # | |
| Foldable Tree | |
Defined in Data.Tree Methods fold :: Monoid m => Tree m -> m # foldMap :: Monoid m => (a -> m) -> Tree a -> m # foldMap' :: Monoid m => (a -> m) -> Tree a -> m # foldr :: (a -> b -> b) -> b -> Tree a -> b # foldr' :: (a -> b -> b) -> b -> Tree a -> b # foldl :: (b -> a -> b) -> b -> Tree a -> b # foldl' :: (b -> a -> b) -> b -> Tree a -> b # foldr1 :: (a -> a -> a) -> Tree a -> a # foldl1 :: (a -> a -> a) -> Tree a -> a # elem :: Eq a => a -> Tree a -> Bool # maximum :: Ord a => Tree a -> a # | |
| Foldable Seq | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => Seq m -> m # foldMap :: Monoid m => (a -> m) -> Seq a -> m # foldMap' :: Monoid m => (a -> m) -> Seq a -> m # foldr :: (a -> b -> b) -> b -> Seq a -> b # foldr' :: (a -> b -> b) -> b -> Seq a -> b # foldl :: (b -> a -> b) -> b -> Seq a -> b # foldl' :: (b -> a -> b) -> b -> Seq a -> b # foldr1 :: (a -> a -> a) -> Seq a -> a # foldl1 :: (a -> a -> a) -> Seq a -> a # elem :: Eq a => a -> Seq a -> Bool # maximum :: Ord a => Seq a -> a # | |
| Foldable FingerTree | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => FingerTree m -> m # foldMap :: Monoid m => (a -> m) -> FingerTree a -> m # foldMap' :: Monoid m => (a -> m) -> FingerTree a -> m # foldr :: (a -> b -> b) -> b -> FingerTree a -> b # foldr' :: (a -> b -> b) -> b -> FingerTree a -> b # foldl :: (b -> a -> b) -> b -> FingerTree a -> b # foldl' :: (b -> a -> b) -> b -> FingerTree a -> b # foldr1 :: (a -> a -> a) -> FingerTree a -> a # foldl1 :: (a -> a -> a) -> FingerTree a -> a # toList :: FingerTree a -> [a] # null :: FingerTree a -> Bool # length :: FingerTree a -> Int # elem :: Eq a => a -> FingerTree a -> Bool # maximum :: Ord a => FingerTree a -> a # minimum :: Ord a => FingerTree a -> a # sum :: Num a => FingerTree a -> a # product :: Num a => FingerTree a -> a # | |
| Foldable Digit | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => Digit m -> m # foldMap :: Monoid m => (a -> m) -> Digit a -> m # foldMap' :: Monoid m => (a -> m) -> Digit a -> m # foldr :: (a -> b -> b) -> b -> Digit a -> b # foldr' :: (a -> b -> b) -> b -> Digit a -> b # foldl :: (b -> a -> b) -> b -> Digit a -> b # foldl' :: (b -> a -> b) -> b -> Digit a -> b # foldr1 :: (a -> a -> a) -> Digit a -> a # foldl1 :: (a -> a -> a) -> Digit a -> a # elem :: Eq a => a -> Digit a -> Bool # maximum :: Ord a => Digit a -> a # minimum :: Ord a => Digit a -> a # | |
| Foldable Node | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => Node m -> m # foldMap :: Monoid m => (a -> m) -> Node a -> m # foldMap' :: Monoid m => (a -> m) -> Node a -> m # foldr :: (a -> b -> b) -> b -> Node a -> b # foldr' :: (a -> b -> b) -> b -> Node a -> b # foldl :: (b -> a -> b) -> b -> Node a -> b # foldl' :: (b -> a -> b) -> b -> Node a -> b # foldr1 :: (a -> a -> a) -> Node a -> a # foldl1 :: (a -> a -> a) -> Node a -> a # elem :: Eq a => a -> Node a -> Bool # maximum :: Ord a => Node a -> a # | |
| Foldable Elem | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => Elem m -> m # foldMap :: Monoid m => (a -> m) -> Elem a -> m # foldMap' :: Monoid m => (a -> m) -> Elem a -> m # foldr :: (a -> b -> b) -> b -> Elem a -> b # foldr' :: (a -> b -> b) -> b -> Elem a -> b # foldl :: (b -> a -> b) -> b -> Elem a -> b # foldl' :: (b -> a -> b) -> b -> Elem a -> b # foldr1 :: (a -> a -> a) -> Elem a -> a # foldl1 :: (a -> a -> a) -> Elem a -> a # elem :: Eq a => a -> Elem a -> Bool # maximum :: Ord a => Elem a -> a # | |
| Foldable ViewL | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => ViewL m -> m # foldMap :: Monoid m => (a -> m) -> ViewL a -> m # foldMap' :: Monoid m => (a -> m) -> ViewL a -> m # foldr :: (a -> b -> b) -> b -> ViewL a -> b # foldr' :: (a -> b -> b) -> b -> ViewL a -> b # foldl :: (b -> a -> b) -> b -> ViewL a -> b # foldl' :: (b -> a -> b) -> b -> ViewL a -> b # foldr1 :: (a -> a -> a) -> ViewL a -> a # foldl1 :: (a -> a -> a) -> ViewL a -> a # elem :: Eq a => a -> ViewL a -> Bool # maximum :: Ord a => ViewL a -> a # minimum :: Ord a => ViewL a -> a # | |
| Foldable ViewR | |
Defined in Data.Sequence.Internal Methods fold :: Monoid m => ViewR m -> m # foldMap :: Monoid m => (a -> m) -> ViewR a -> m # foldMap' :: Monoid m => (a -> m) -> ViewR a -> m # foldr :: (a -> b -> b) -> b -> ViewR a -> b # foldr' :: (a -> b -> b) -> b -> ViewR a -> b # foldl :: (b -> a -> b) -> b -> ViewR a -> b # foldl' :: (b -> a -> b) -> b -> ViewR a -> b # foldr1 :: (a -> a -> a) -> ViewR a -> a # foldl1 :: (a -> a -> a) -> ViewR a -> a # elem :: Eq a => a -> ViewR a -> Bool # maximum :: Ord a => ViewR a -> a # minimum :: Ord a => ViewR a -> a # | |
| Foldable Set | Folds in order of increasing key. |
Defined in Data.Set.Internal Methods fold :: Monoid m => Set m -> m # foldMap :: Monoid m => (a -> m) -> Set a -> m # foldMap' :: Monoid m => (a -> m) -> Set a -> m # foldr :: (a -> b -> b) -> b -> Set a -> b # foldr' :: (a -> b -> b) -> b -> Set a -> b # foldl :: (b -> a -> b) -> b -> Set a -> b # foldl' :: (b -> a -> b) -> b -> Set a -> b # foldr1 :: (a -> a -> a) -> Set a -> a # foldl1 :: (a -> a -> a) -> Set a -> a # elem :: Eq a => a -> Set a -> Bool # maximum :: Ord a => Set a -> a # | |
| Foldable Directories' | |
Defined in XMonad.Core Methods fold :: Monoid m => Directories' m -> m # foldMap :: Monoid m => (a -> m) -> Directories' a -> m # foldMap' :: Monoid m => (a -> m) -> Directories' a -> m # foldr :: (a -> b -> b) -> b -> Directories' a -> b # foldr' :: (a -> b -> b) -> b -> Directories' a -> b # foldl :: (b -> a -> b) -> b -> Directories' a -> b # foldl' :: (b -> a -> b) -> b -> Directories' a -> b # foldr1 :: (a -> a -> a) -> Directories' a -> a # foldl1 :: (a -> a -> a) -> Directories' a -> a # toList :: Directories' a -> [a] # null :: Directories' a -> Bool # length :: Directories' a -> Int # elem :: Eq a => a -> Directories' a -> Bool # maximum :: Ord a => Directories' a -> a # minimum :: Ord a => Directories' a -> a # sum :: Num a => Directories' a -> a # product :: Num a => Directories' a -> a # | |
| Foldable Stack | |
Defined in XMonad.StackSet Methods fold :: Monoid m => Stack m -> m # foldMap :: Monoid m => (a -> m) -> Stack a -> m # foldMap' :: Monoid m => (a -> m) -> Stack a -> m # foldr :: (a -> b -> b) -> b -> Stack a -> b # foldr' :: (a -> b -> b) -> b -> Stack a -> b # foldl :: (b -> a -> b) -> b -> Stack a -> b # foldl' :: (b -> a -> b) -> b -> Stack a -> b # foldr1 :: (a -> a -> a) -> Stack a -> a # foldl1 :: (a -> a -> a) -> Stack a -> a # elem :: Eq a => a -> Stack a -> Bool # maximum :: Ord a => Stack a -> a # minimum :: Ord a => Stack a -> a # | |
| Foldable Cursors Source # | |
Defined in XMonad.Actions.WorkspaceCursors Methods fold :: Monoid m => Cursors m -> m # foldMap :: Monoid m => (a -> m) -> Cursors a -> m # foldMap' :: Monoid m => (a -> m) -> Cursors a -> m # foldr :: (a -> b -> b) -> b -> Cursors a -> b # foldr' :: (a -> b -> b) -> b -> Cursors a -> b # foldl :: (b -> a -> b) -> b -> Cursors a -> b # foldl' :: (b -> a -> b) -> b -> Cursors a -> b # foldr1 :: (a -> a -> a) -> Cursors a -> a # foldl1 :: (a -> a -> a) -> Cursors a -> a # elem :: Eq a => a -> Cursors a -> Bool # maximum :: Ord a => Cursors a -> a # minimum :: Ord a => Cursors a -> a # | |
| Foldable (Either a) | Since: base-4.7.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Either a m -> m # foldMap :: Monoid m => (a0 -> m) -> Either a a0 -> m # foldMap' :: Monoid m => (a0 -> m) -> Either a a0 -> m # foldr :: (a0 -> b -> b) -> b -> Either a a0 -> b # foldr' :: (a0 -> b -> b) -> b -> Either a a0 -> b # foldl :: (b -> a0 -> b) -> b -> Either a a0 -> b # foldl' :: (b -> a0 -> b) -> b -> Either a a0 -> b # foldr1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 # foldl1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 # toList :: Either a a0 -> [a0] # length :: Either a a0 -> Int # elem :: Eq a0 => a0 -> Either a a0 -> Bool # maximum :: Ord a0 => Either a a0 -> a0 # minimum :: Ord a0 => Either a a0 -> a0 # | |
| Foldable (V1 :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => V1 m -> m # foldMap :: Monoid m => (a -> m) -> V1 a -> m # foldMap' :: Monoid m => (a -> m) -> V1 a -> m # foldr :: (a -> b -> b) -> b -> V1 a -> b # foldr' :: (a -> b -> b) -> b -> V1 a -> b # foldl :: (b -> a -> b) -> b -> V1 a -> b # foldl' :: (b -> a -> b) -> b -> V1 a -> b # foldr1 :: (a -> a -> a) -> V1 a -> a # foldl1 :: (a -> a -> a) -> V1 a -> a # elem :: Eq a => a -> V1 a -> Bool # maximum :: Ord a => V1 a -> a # | |
| Foldable (U1 :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => U1 m -> m # foldMap :: Monoid m => (a -> m) -> U1 a -> m # foldMap' :: Monoid m => (a -> m) -> U1 a -> m # foldr :: (a -> b -> b) -> b -> U1 a -> b # foldr' :: (a -> b -> b) -> b -> U1 a -> b # foldl :: (b -> a -> b) -> b -> U1 a -> b # foldl' :: (b -> a -> b) -> b -> U1 a -> b # foldr1 :: (a -> a -> a) -> U1 a -> a # foldl1 :: (a -> a -> a) -> U1 a -> a # elem :: Eq a => a -> U1 a -> Bool # maximum :: Ord a => U1 a -> a # | |
| Foldable (UAddr :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UAddr m -> m # foldMap :: Monoid m => (a -> m) -> UAddr a -> m # foldMap' :: Monoid m => (a -> m) -> UAddr a -> m # foldr :: (a -> b -> b) -> b -> UAddr a -> b # foldr' :: (a -> b -> b) -> b -> UAddr a -> b # foldl :: (b -> a -> b) -> b -> UAddr a -> b # foldl' :: (b -> a -> b) -> b -> UAddr a -> b # foldr1 :: (a -> a -> a) -> UAddr a -> a # foldl1 :: (a -> a -> a) -> UAddr a -> a # elem :: Eq a => a -> UAddr a -> Bool # maximum :: Ord a => UAddr a -> a # minimum :: Ord a => UAddr a -> a # | |
| Foldable (UChar :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UChar m -> m # foldMap :: Monoid m => (a -> m) -> UChar a -> m # foldMap' :: Monoid m => (a -> m) -> UChar a -> m # foldr :: (a -> b -> b) -> b -> UChar a -> b # foldr' :: (a -> b -> b) -> b -> UChar a -> b # foldl :: (b -> a -> b) -> b -> UChar a -> b # foldl' :: (b -> a -> b) -> b -> UChar a -> b # foldr1 :: (a -> a -> a) -> UChar a -> a # foldl1 :: (a -> a -> a) -> UChar a -> a # elem :: Eq a => a -> UChar a -> Bool # maximum :: Ord a => UChar a -> a # minimum :: Ord a => UChar a -> a # | |
| Foldable (UDouble :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UDouble m -> m # foldMap :: Monoid m => (a -> m) -> UDouble a -> m # foldMap' :: Monoid m => (a -> m) -> UDouble a -> m # foldr :: (a -> b -> b) -> b -> UDouble a -> b # foldr' :: (a -> b -> b) -> b -> UDouble a -> b # foldl :: (b -> a -> b) -> b -> UDouble a -> b # foldl' :: (b -> a -> b) -> b -> UDouble a -> b # foldr1 :: (a -> a -> a) -> UDouble a -> a # foldl1 :: (a -> a -> a) -> UDouble a -> a # elem :: Eq a => a -> UDouble a -> Bool # maximum :: Ord a => UDouble a -> a # minimum :: Ord a => UDouble a -> a # | |
| Foldable (UFloat :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UFloat m -> m # foldMap :: Monoid m => (a -> m) -> UFloat a -> m # foldMap' :: Monoid m => (a -> m) -> UFloat a -> m # foldr :: (a -> b -> b) -> b -> UFloat a -> b # foldr' :: (a -> b -> b) -> b -> UFloat a -> b # foldl :: (b -> a -> b) -> b -> UFloat a -> b # foldl' :: (b -> a -> b) -> b -> UFloat a -> b # foldr1 :: (a -> a -> a) -> UFloat a -> a # foldl1 :: (a -> a -> a) -> UFloat a -> a # elem :: Eq a => a -> UFloat a -> Bool # maximum :: Ord a => UFloat a -> a # minimum :: Ord a => UFloat a -> a # | |
| Foldable (UInt :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UInt m -> m # foldMap :: Monoid m => (a -> m) -> UInt a -> m # foldMap' :: Monoid m => (a -> m) -> UInt a -> m # foldr :: (a -> b -> b) -> b -> UInt a -> b # foldr' :: (a -> b -> b) -> b -> UInt a -> b # foldl :: (b -> a -> b) -> b -> UInt a -> b # foldl' :: (b -> a -> b) -> b -> UInt a -> b # foldr1 :: (a -> a -> a) -> UInt a -> a # foldl1 :: (a -> a -> a) -> UInt a -> a # elem :: Eq a => a -> UInt a -> Bool # maximum :: Ord a => UInt a -> a # | |
| Foldable (UWord :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UWord m -> m # foldMap :: Monoid m => (a -> m) -> UWord a -> m # foldMap' :: Monoid m => (a -> m) -> UWord a -> m # foldr :: (a -> b -> b) -> b -> UWord a -> b # foldr' :: (a -> b -> b) -> b -> UWord a -> b # foldl :: (b -> a -> b) -> b -> UWord a -> b # foldl' :: (b -> a -> b) -> b -> UWord a -> b # foldr1 :: (a -> a -> a) -> UWord a -> a # foldl1 :: (a -> a -> a) -> UWord a -> a # elem :: Eq a => a -> UWord a -> Bool # maximum :: Ord a => UWord a -> a # minimum :: Ord a => UWord a -> a # | |
| Foldable ((,) a) | Since: base-4.7.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => (a, m) -> m # foldMap :: Monoid m => (a0 -> m) -> (a, a0) -> m # foldMap' :: Monoid m => (a0 -> m) -> (a, a0) -> m # foldr :: (a0 -> b -> b) -> b -> (a, a0) -> b # foldr' :: (a0 -> b -> b) -> b -> (a, a0) -> b # foldl :: (b -> a0 -> b) -> b -> (a, a0) -> b # foldl' :: (b -> a0 -> b) -> b -> (a, a0) -> b # foldr1 :: (a0 -> a0 -> a0) -> (a, a0) -> a0 # foldl1 :: (a0 -> a0 -> a0) -> (a, a0) -> a0 # elem :: Eq a0 => a0 -> (a, a0) -> Bool # maximum :: Ord a0 => (a, a0) -> a0 # minimum :: Ord a0 => (a, a0) -> a0 # | |
| Foldable (Array i) | Since: base-4.8.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Array i m -> m # foldMap :: Monoid m => (a -> m) -> Array i a -> m # foldMap' :: Monoid m => (a -> m) -> Array i a -> m # foldr :: (a -> b -> b) -> b -> Array i a -> b # foldr' :: (a -> b -> b) -> b -> Array i a -> b # foldl :: (b -> a -> b) -> b -> Array i a -> b # foldl' :: (b -> a -> b) -> b -> Array i a -> b # foldr1 :: (a -> a -> a) -> Array i a -> a # foldl1 :: (a -> a -> a) -> Array i a -> a # elem :: Eq a => a -> Array i a -> Bool # maximum :: Ord a => Array i a -> a # minimum :: Ord a => Array i a -> a # | |
| Foldable (Proxy :: Type -> Type) | Since: base-4.7.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Proxy m -> m # foldMap :: Monoid m => (a -> m) -> Proxy a -> m # foldMap' :: Monoid m => (a -> m) -> Proxy a -> m # foldr :: (a -> b -> b) -> b -> Proxy a -> b # foldr' :: (a -> b -> b) -> b -> Proxy a -> b # foldl :: (b -> a -> b) -> b -> Proxy a -> b # foldl' :: (b -> a -> b) -> b -> Proxy a -> b # foldr1 :: (a -> a -> a) -> Proxy a -> a # foldl1 :: (a -> a -> a) -> Proxy a -> a # elem :: Eq a => a -> Proxy a -> Bool # maximum :: Ord a => Proxy a -> a # minimum :: Ord a => Proxy a -> a # | |
| Foldable (Map k) | Folds in order of increasing key. |
Defined in Data.Map.Internal Methods fold :: Monoid m => Map k m -> m # foldMap :: Monoid m => (a -> m) -> Map k a -> m # foldMap' :: Monoid m => (a -> m) -> Map k a -> m # foldr :: (a -> b -> b) -> b -> Map k a -> b # foldr' :: (a -> b -> b) -> b -> Map k a -> b # foldl :: (b -> a -> b) -> b -> Map k a -> b # foldl' :: (b -> a -> b) -> b -> Map k a -> b # foldr1 :: (a -> a -> a) -> Map k a -> a # foldl1 :: (a -> a -> a) -> Map k a -> a # elem :: Eq a => a -> Map k a -> Bool # maximum :: Ord a => Map k a -> a # minimum :: Ord a => Map k a -> a # | |
| Foldable f => Foldable (ListT f) | |
Defined in Control.Monad.Trans.List Methods fold :: Monoid m => ListT f m -> m # foldMap :: Monoid m => (a -> m) -> ListT f a -> m # foldMap' :: Monoid m => (a -> m) -> ListT f a -> m # foldr :: (a -> b -> b) -> b -> ListT f a -> b # foldr' :: (a -> b -> b) -> b -> ListT f a -> b # foldl :: (b -> a -> b) -> b -> ListT f a -> b # foldl' :: (b -> a -> b) -> b -> ListT f a -> b # foldr1 :: (a -> a -> a) -> ListT f a -> a # foldl1 :: (a -> a -> a) -> ListT f a -> a # elem :: Eq a => a -> ListT f a -> Bool # maximum :: Ord a => ListT f a -> a # minimum :: Ord a => ListT f a -> a # | |
| Foldable f => Foldable (MaybeT f) | |
Defined in Control.Monad.Trans.Maybe Methods fold :: Monoid m => MaybeT f m -> m # foldMap :: Monoid m => (a -> m) -> MaybeT f a -> m # foldMap' :: Monoid m => (a -> m) -> MaybeT f a -> m # foldr :: (a -> b -> b) -> b -> MaybeT f a -> b # foldr' :: (a -> b -> b) -> b -> MaybeT f a -> b # foldl :: (b -> a -> b) -> b -> MaybeT f a -> b # foldl' :: (b -> a -> b) -> b -> MaybeT f a -> b # foldr1 :: (a -> a -> a) -> MaybeT f a -> a # foldl1 :: (a -> a -> a) -> MaybeT f a -> a # elem :: Eq a => a -> MaybeT f a -> Bool # maximum :: Ord a => MaybeT f a -> a # minimum :: Ord a => MaybeT f a -> a # | |
| Foldable f => Foldable (Rec1 f) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Rec1 f m -> m # foldMap :: Monoid m => (a -> m) -> Rec1 f a -> m # foldMap' :: Monoid m => (a -> m) -> Rec1 f a -> m # foldr :: (a -> b -> b) -> b -> Rec1 f a -> b # foldr' :: (a -> b -> b) -> b -> Rec1 f a -> b # foldl :: (b -> a -> b) -> b -> Rec1 f a -> b # foldl' :: (b -> a -> b) -> b -> Rec1 f a -> b # foldr1 :: (a -> a -> a) -> Rec1 f a -> a # foldl1 :: (a -> a -> a) -> Rec1 f a -> a # elem :: Eq a => a -> Rec1 f a -> Bool # maximum :: Ord a => Rec1 f a -> a # minimum :: Ord a => Rec1 f a -> a # | |
| Foldable (Const m :: Type -> Type) | Since: base-4.7.0.0 |
Defined in Data.Functor.Const Methods fold :: Monoid m0 => Const m m0 -> m0 # foldMap :: Monoid m0 => (a -> m0) -> Const m a -> m0 # foldMap' :: Monoid m0 => (a -> m0) -> Const m a -> m0 # foldr :: (a -> b -> b) -> b -> Const m a -> b # foldr' :: (a -> b -> b) -> b -> Const m a -> b # foldl :: (b -> a -> b) -> b -> Const m a -> b # foldl' :: (b -> a -> b) -> b -> Const m a -> b # foldr1 :: (a -> a -> a) -> Const m a -> a # foldl1 :: (a -> a -> a) -> Const m a -> a # elem :: Eq a => a -> Const m a -> Bool # maximum :: Ord a => Const m a -> a # minimum :: Ord a => Const m a -> a # | |
| Foldable f => Foldable (Ap f) | Since: base-4.12.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Ap f m -> m # foldMap :: Monoid m => (a -> m) -> Ap f a -> m # foldMap' :: Monoid m => (a -> m) -> Ap f a -> m # foldr :: (a -> b -> b) -> b -> Ap f a -> b # foldr' :: (a -> b -> b) -> b -> Ap f a -> b # foldl :: (b -> a -> b) -> b -> Ap f a -> b # foldl' :: (b -> a -> b) -> b -> Ap f a -> b # foldr1 :: (a -> a -> a) -> Ap f a -> a # foldl1 :: (a -> a -> a) -> Ap f a -> a # elem :: Eq a => a -> Ap f a -> Bool # maximum :: Ord a => Ap f a -> a # | |
| Foldable f => Foldable (Alt f) | Since: base-4.12.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Alt f m -> m # foldMap :: Monoid m => (a -> m) -> Alt f a -> m # foldMap' :: Monoid m => (a -> m) -> Alt f a -> m # foldr :: (a -> b -> b) -> b -> Alt f a -> b # foldr' :: (a -> b -> b) -> b -> Alt f a -> b # foldl :: (b -> a -> b) -> b -> Alt f a -> b # foldl' :: (b -> a -> b) -> b -> Alt f a -> b # foldr1 :: (a -> a -> a) -> Alt f a -> a # foldl1 :: (a -> a -> a) -> Alt f a -> a # elem :: Eq a => a -> Alt f a -> Bool # maximum :: Ord a => Alt f a -> a # minimum :: Ord a => Alt f a -> a # | |
| Foldable f => Foldable (IdentityT f) | |
Defined in Control.Monad.Trans.Identity Methods fold :: Monoid m => IdentityT f m -> m # foldMap :: Monoid m => (a -> m) -> IdentityT f a -> m # foldMap' :: Monoid m => (a -> m) -> IdentityT f a -> m # foldr :: (a -> b -> b) -> b -> IdentityT f a -> b # foldr' :: (a -> b -> b) -> b -> IdentityT f a -> b # foldl :: (b -> a -> b) -> b -> IdentityT f a -> b # foldl' :: (b -> a -> b) -> b -> IdentityT f a -> b # foldr1 :: (a -> a -> a) -> IdentityT f a -> a # foldl1 :: (a -> a -> a) -> IdentityT f a -> a # toList :: IdentityT f a -> [a] # null :: IdentityT f a -> Bool # length :: IdentityT f a -> Int # elem :: Eq a => a -> IdentityT f a -> Bool # maximum :: Ord a => IdentityT f a -> a # minimum :: Ord a => IdentityT f a -> a # | |
| Foldable f => Foldable (ErrorT e f) | |
Defined in Control.Monad.Trans.Error Methods fold :: Monoid m => ErrorT e f m -> m # foldMap :: Monoid m => (a -> m) -> ErrorT e f a -> m # foldMap' :: Monoid m => (a -> m) -> ErrorT e f a -> m # foldr :: (a -> b -> b) -> b -> ErrorT e f a -> b # foldr' :: (a -> b -> b) -> b -> ErrorT e f a -> b # foldl :: (b -> a -> b) -> b -> ErrorT e f a -> b # foldl' :: (b -> a -> b) -> b -> ErrorT e f a -> b # foldr1 :: (a -> a -> a) -> ErrorT e f a -> a # foldl1 :: (a -> a -> a) -> ErrorT e f a -> a # toList :: ErrorT e f a -> [a] # null :: ErrorT e f a -> Bool # length :: ErrorT e f a -> Int # elem :: Eq a => a -> ErrorT e f a -> Bool # maximum :: Ord a => ErrorT e f a -> a # minimum :: Ord a => ErrorT e f a -> a # | |
| Foldable f => Foldable (ExceptT e f) | |
Defined in Control.Monad.Trans.Except Methods fold :: Monoid m => ExceptT e f m -> m # foldMap :: Monoid m => (a -> m) -> ExceptT e f a -> m # foldMap' :: Monoid m => (a -> m) -> ExceptT e f a -> m # foldr :: (a -> b -> b) -> b -> ExceptT e f a -> b # foldr' :: (a -> b -> b) -> b -> ExceptT e f a -> b # foldl :: (b -> a -> b) -> b -> ExceptT e f a -> b # foldl' :: (b -> a -> b) -> b -> ExceptT e f a -> b # foldr1 :: (a -> a -> a) -> ExceptT e f a -> a # foldl1 :: (a -> a -> a) -> ExceptT e f a -> a # toList :: ExceptT e f a -> [a] # null :: ExceptT e f a -> Bool # length :: ExceptT e f a -> Int # elem :: Eq a => a -> ExceptT e f a -> Bool # maximum :: Ord a => ExceptT e f a -> a # minimum :: Ord a => ExceptT e f a -> a # | |
| Foldable f => Foldable (WriterT w f) | |
Defined in Control.Monad.Trans.Writer.Lazy Methods fold :: Monoid m => WriterT w f m -> m # foldMap :: Monoid m => (a -> m) -> WriterT w f a -> m # foldMap' :: Monoid m => (a -> m) -> WriterT w f a -> m # foldr :: (a -> b -> b) -> b -> WriterT w f a -> b # foldr' :: (a -> b -> b) -> b -> WriterT w f a -> b # foldl :: (b -> a -> b) -> b -> WriterT w f a -> b # foldl' :: (b -> a -> b) -> b -> WriterT w f a -> b # foldr1 :: (a -> a -> a) -> WriterT w f a -> a # foldl1 :: (a -> a -> a) -> WriterT w f a -> a # toList :: WriterT w f a -> [a] # null :: WriterT w f a -> Bool # length :: WriterT w f a -> Int # elem :: Eq a => a -> WriterT w f a -> Bool # maximum :: Ord a => WriterT w f a -> a # minimum :: Ord a => WriterT w f a -> a # | |
| Foldable f => Foldable (WriterT w f) | |
Defined in Control.Monad.Trans.Writer.Strict Methods fold :: Monoid m => WriterT w f m -> m # foldMap :: Monoid m => (a -> m) -> WriterT w f a -> m # foldMap' :: Monoid m => (a -> m) -> WriterT w f a -> m # foldr :: (a -> b -> b) -> b -> WriterT w f a -> b # foldr' :: (a -> b -> b) -> b -> WriterT w f a -> b # foldl :: (b -> a -> b) -> b -> WriterT w f a -> b # foldl' :: (b -> a -> b) -> b -> WriterT w f a -> b # foldr1 :: (a -> a -> a) -> WriterT w f a -> a # foldl1 :: (a -> a -> a) -> WriterT w f a -> a # toList :: WriterT w f a -> [a] # null :: WriterT w f a -> Bool # length :: WriterT w f a -> Int # elem :: Eq a => a -> WriterT w f a -> Bool # maximum :: Ord a => WriterT w f a -> a # minimum :: Ord a => WriterT w f a -> a # | |
| Foldable (K1 i c :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => K1 i c m -> m # foldMap :: Monoid m => (a -> m) -> K1 i c a -> m # foldMap' :: Monoid m => (a -> m) -> K1 i c a -> m # foldr :: (a -> b -> b) -> b -> K1 i c a -> b # foldr' :: (a -> b -> b) -> b -> K1 i c a -> b # foldl :: (b -> a -> b) -> b -> K1 i c a -> b # foldl' :: (b -> a -> b) -> b -> K1 i c a -> b # foldr1 :: (a -> a -> a) -> K1 i c a -> a # foldl1 :: (a -> a -> a) -> K1 i c a -> a # elem :: Eq a => a -> K1 i c a -> Bool # maximum :: Ord a => K1 i c a -> a # minimum :: Ord a => K1 i c a -> a # | |
| (Foldable f, Foldable g) => Foldable (f :+: g) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => (f :+: g) m -> m # foldMap :: Monoid m => (a -> m) -> (f :+: g) a -> m # foldMap' :: Monoid m => (a -> m) -> (f :+: g) a -> m # foldr :: (a -> b -> b) -> b -> (f :+: g) a -> b # foldr' :: (a -> b -> b) -> b -> (f :+: g) a -> b # foldl :: (b -> a -> b) -> b -> (f :+: g) a -> b # foldl' :: (b -> a -> b) -> b -> (f :+: g) a -> b # foldr1 :: (a -> a -> a) -> (f :+: g) a -> a # foldl1 :: (a -> a -> a) -> (f :+: g) a -> a # toList :: (f :+: g) a -> [a] # length :: (f :+: g) a -> Int # elem :: Eq a => a -> (f :+: g) a -> Bool # maximum :: Ord a => (f :+: g) a -> a # minimum :: Ord a => (f :+: g) a -> a # | |
| (Foldable f, Foldable g) => Foldable (f :*: g) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => (f :*: g) m -> m # foldMap :: Monoid m => (a -> m) -> (f :*: g) a -> m # foldMap' :: Monoid m => (a -> m) -> (f :*: g) a -> m # foldr :: (a -> b -> b) -> b -> (f :*: g) a -> b # foldr' :: (a -> b -> b) -> b -> (f :*: g) a -> b # foldl :: (b -> a -> b) -> b -> (f :*: g) a -> b # foldl' :: (b -> a -> b) -> b -> (f :*: g) a -> b # foldr1 :: (a -> a -> a) -> (f :*: g) a -> a # foldl1 :: (a -> a -> a) -> (f :*: g) a -> a # toList :: (f :*: g) a -> [a] # length :: (f :*: g) a -> Int # elem :: Eq a => a -> (f :*: g) a -> Bool # maximum :: Ord a => (f :*: g) a -> a # minimum :: Ord a => (f :*: g) a -> a # | |
| (Foldable f, Foldable g) => Foldable (Product f g) | Since: base-4.9.0.0 |
Defined in Data.Functor.Product Methods fold :: Monoid m => Product f g m -> m # foldMap :: Monoid m => (a -> m) -> Product f g a -> m # foldMap' :: Monoid m => (a -> m) -> Product f g a -> m # foldr :: (a -> b -> b) -> b -> Product f g a -> b # foldr' :: (a -> b -> b) -> b -> Product f g a -> b # foldl :: (b -> a -> b) -> b -> Product f g a -> b # foldl' :: (b -> a -> b) -> b -> Product f g a -> b # foldr1 :: (a -> a -> a) -> Product f g a -> a # foldl1 :: (a -> a -> a) -> Product f g a -> a # toList :: Product f g a -> [a] # null :: Product f g a -> Bool # length :: Product f g a -> Int # elem :: Eq a => a -> Product f g a -> Bool # maximum :: Ord a => Product f g a -> a # minimum :: Ord a => Product f g a -> a # | |
| (Foldable f, Foldable g) => Foldable (Sum f g) | Since: base-4.9.0.0 |
Defined in Data.Functor.Sum Methods fold :: Monoid m => Sum f g m -> m # foldMap :: Monoid m => (a -> m) -> Sum f g a -> m # foldMap' :: Monoid m => (a -> m) -> Sum f g a -> m # foldr :: (a -> b -> b) -> b -> Sum f g a -> b # foldr' :: (a -> b -> b) -> b -> Sum f g a -> b # foldl :: (b -> a -> b) -> b -> Sum f g a -> b # foldl' :: (b -> a -> b) -> b -> Sum f g a -> b # foldr1 :: (a -> a -> a) -> Sum f g a -> a # foldl1 :: (a -> a -> a) -> Sum f g a -> a # elem :: Eq a => a -> Sum f g a -> Bool # maximum :: Ord a => Sum f g a -> a # minimum :: Ord a => Sum f g a -> a # | |
| Foldable f => Foldable (M1 i c f) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => M1 i c f m -> m # foldMap :: Monoid m => (a -> m) -> M1 i c f a -> m # foldMap' :: Monoid m => (a -> m) -> M1 i c f a -> m # foldr :: (a -> b -> b) -> b -> M1 i c f a -> b # foldr' :: (a -> b -> b) -> b -> M1 i c f a -> b # foldl :: (b -> a -> b) -> b -> M1 i c f a -> b # foldl' :: (b -> a -> b) -> b -> M1 i c f a -> b # foldr1 :: (a -> a -> a) -> M1 i c f a -> a # foldl1 :: (a -> a -> a) -> M1 i c f a -> a # elem :: Eq a => a -> M1 i c f a -> Bool # maximum :: Ord a => M1 i c f a -> a # minimum :: Ord a => M1 i c f a -> a # | |
| (Foldable f, Foldable g) => Foldable (f :.: g) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => (f :.: g) m -> m # foldMap :: Monoid m => (a -> m) -> (f :.: g) a -> m # foldMap' :: Monoid m => (a -> m) -> (f :.: g) a -> m # foldr :: (a -> b -> b) -> b -> (f :.: g) a -> b # foldr' :: (a -> b -> b) -> b -> (f :.: g) a -> b # foldl :: (b -> a -> b) -> b -> (f :.: g) a -> b # foldl' :: (b -> a -> b) -> b -> (f :.: g) a -> b # foldr1 :: (a -> a -> a) -> (f :.: g) a -> a # foldl1 :: (a -> a -> a) -> (f :.: g) a -> a # toList :: (f :.: g) a -> [a] # length :: (f :.: g) a -> Int # elem :: Eq a => a -> (f :.: g) a -> Bool # maximum :: Ord a => (f :.: g) a -> a # minimum :: Ord a => (f :.: g) a -> a # | |
| (Foldable f, Foldable g) => Foldable (Compose f g) | Since: base-4.9.0.0 |
Defined in Data.Functor.Compose Methods fold :: Monoid m => Compose f g m -> m # foldMap :: Monoid m => (a -> m) -> Compose f g a -> m # foldMap' :: Monoid m => (a -> m) -> Compose f g a -> m # foldr :: (a -> b -> b) -> b -> Compose f g a -> b # foldr' :: (a -> b -> b) -> b -> Compose f g a -> b # foldl :: (b -> a -> b) -> b -> Compose f g a -> b # foldl' :: (b -> a -> b) -> b -> Compose f g a -> b # foldr1 :: (a -> a -> a) -> Compose f g a -> a # foldl1 :: (a -> a -> a) -> Compose f g a -> a # toList :: Compose f g a -> [a] # null :: Compose f g a -> Bool # length :: Compose f g a -> Int # elem :: Eq a => a -> Compose f g a -> Bool # maximum :: Ord a => Compose f g a -> a # minimum :: Ord a => Compose f g a -> a # | |
class (Functor t, Foldable t) => Traversable (t :: Type -> Type) where #
Functors representing data structures that can be traversed from left to right.
A definition of traverse must satisfy the following laws:
- Naturality
t .for every applicative transformationtraversef =traverse(t . f)t- Identity
traverseIdentity=Identity- Composition
traverse(Compose.fmapg . f) =Compose.fmap(traverseg) .traversef
A definition of sequenceA must satisfy the following laws:
- Naturality
t .for every applicative transformationsequenceA=sequenceA.fmaptt- Identity
sequenceA.fmapIdentity=Identity- Composition
sequenceA.fmapCompose=Compose.fmapsequenceA.sequenceA
where an applicative transformation is a function
t :: (Applicative f, Applicative g) => f a -> g a
preserving the Applicative operations, i.e.
t (purex) =purex t (f<*>x) = t f<*>t x
and the identity functor Identity and composition functors
Compose are from Data.Functor.Identity and
Data.Functor.Compose.
A result of the naturality law is a purity law for traverse
traversepure=pure
(The naturality law is implied by parametricity and thus so is the purity law [1, p15].)
Instances are similar to Functor, e.g. given a data type
data Tree a = Empty | Leaf a | Node (Tree a) a (Tree a)
a suitable instance would be
instance Traversable Tree where traverse f Empty = pure Empty traverse f (Leaf x) = Leaf <$> f x traverse f (Node l k r) = Node <$> traverse f l <*> f k <*> traverse f r
This is suitable even for abstract types, as the laws for <*>
imply a form of associativity.
The superclass instances should satisfy the following:
- In the
Functorinstance,fmapshould be equivalent to traversal with the identity applicative functor (fmapDefault). - In the
Foldableinstance,foldMapshould be equivalent to traversal with a constant applicative functor (foldMapDefault).
References: [1] The Essence of the Iterator Pattern, Jeremy Gibbons and Bruno C. d. S. Oliveira
Methods
traverse :: Applicative f => (a -> f b) -> t a -> f (t b) #
Map each element of a structure to an action, evaluate these actions
from left to right, and collect the results. For a version that ignores
the results see traverse_.
sequenceA :: Applicative f => t (f a) -> f (t a) #
Evaluate each action in the structure from left to right, and
collect the results. For a version that ignores the results
see sequenceA_.
mapM :: Monad m => (a -> m b) -> t a -> m (t b) #
Map each element of a structure to a monadic action, evaluate
these actions from left to right, and collect the results. For
a version that ignores the results see mapM_.
sequence :: Monad m => t (m a) -> m (t a) #
Evaluate each monadic action in the structure from left to
right, and collect the results. For a version that ignores the
results see sequence_.
Instances
The class of semigroups (types with an associative binary operation).
Instances should satisfy the following:
Since: base-4.9.0.0
Instances
class Semigroup a => Monoid a where #
The class of monoids (types with an associative binary operation that has an identity). Instances should satisfy the following:
- Right identity
x<>mempty= x- Left identity
mempty<>x = x- Associativity
x(<>(y<>z) = (x<>y)<>zSemigrouplaw)- Concatenation
mconcat=foldr(<>)mempty
The method names refer to the monoid of lists under concatenation, but there are many other instances.
Some types can be viewed as a monoid in more than one way,
e.g. both addition and multiplication on numbers.
In such cases we often define newtypes and make those instances
of Monoid, e.g. Sum and Product.
NOTE: Semigroup is a superclass of Monoid since base-4.11.0.0.
Minimal complete definition
Methods
Identity of mappend
>>>"Hello world" <> mempty"Hello world"
An associative operation
NOTE: This method is redundant and has the default
implementation since base-4.11.0.0.
Should it be implemented manually, since mappend = (<>)mappend is a synonym for
(<>), it is expected that the two functions are defined the same
way. In a future GHC release mappend will be removed from Monoid.
Fold a list using the monoid.
For most types, the default definition for mconcat will be
used, but the function is included in the class definition so
that an optimized version can be provided for specific types.
>>>mconcat ["Hello", " ", "Haskell", "!"]"Hello Haskell!"
Instances
| Monoid Ordering | Since: base-2.1 |
| Monoid () | Since: base-2.1 |
| Monoid All | Since: base-2.1 |
| Monoid Any | Since: base-2.1 |
| Monoid ShortByteString | |
Defined in Data.ByteString.Short.Internal Methods mappend :: ShortByteString -> ShortByteString -> ShortByteString # mconcat :: [ShortByteString] -> ShortByteString # | |
| Monoid ByteString | |
Defined in Data.ByteString.Internal Methods mempty :: ByteString # mappend :: ByteString -> ByteString -> ByteString # mconcat :: [ByteString] -> ByteString # | |
| Monoid IntSet | |
| Monoid Opacity Source # | |
| Monoid RescreenConfig Source # | |
Defined in XMonad.Hooks.Rescreen Methods mappend :: RescreenConfig -> RescreenConfig -> RescreenConfig # mconcat :: [RescreenConfig] -> RescreenConfig # | |
| Monoid WallpaperList Source # | |
Defined in XMonad.Hooks.WallpaperSetter Methods mempty :: WallpaperList # mappend :: WallpaperList -> WallpaperList -> WallpaperList # mconcat :: [WallpaperList] -> WallpaperList # | |
| Monoid StatusBarConfig Source # | |
Defined in XMonad.Hooks.StatusBar Methods mappend :: StatusBarConfig -> StatusBarConfig -> StatusBarConfig # mconcat :: [StatusBarConfig] -> StatusBarConfig # | |
| Monoid [a] | Since: base-2.1 |
| Semigroup a => Monoid (Maybe a) | Lift a semigroup into Since 4.11.0: constraint on inner Since: base-2.1 |
| Monoid a => Monoid (IO a) | Since: base-4.9.0.0 |
| Monoid p => Monoid (Par1 p) | Since: base-4.12.0.0 |
| Monoid a => Monoid (Identity a) | Since: base-4.9.0.0 |
| Monoid (First a) | Since: base-2.1 |
| Monoid (Last a) | Since: base-2.1 |
| Monoid a => Monoid (Dual a) | Since: base-2.1 |
| Monoid (Endo a) | Since: base-2.1 |
| Num a => Monoid (Sum a) | Since: base-2.1 |
| Num a => Monoid (Product a) | Since: base-2.1 |
| Monoid a => Monoid (Down a) | Since: base-4.11.0.0 |
| Monoid (IntMap a) | |
| Monoid (Seq a) | |
| Ord a => Monoid (Set a) | |
| Monoid a => Monoid (X a) | |
| Monoid a => Monoid (Query a) | |
| Monoid (MergeSet a) | |
| Monoid a => Monoid (PureX a) Source # | |
| Monoid a => Monoid (FocusQuery a) Source # | |
Defined in XMonad.Hooks.Focus Methods mempty :: FocusQuery a # mappend :: FocusQuery a -> FocusQuery a -> FocusQuery a # mconcat :: [FocusQuery a] -> FocusQuery a # | |
| Monoid b => Monoid (a -> b) | Since: base-2.1 |
| Monoid (U1 p) | Since: base-4.12.0.0 |
| (Monoid a, Monoid b) => Monoid (a, b) | Since: base-2.1 |
| Monoid (Proxy s) | Since: base-4.7.0.0 |
| Ord k => Monoid (Map k v) | |
| Monoid (f p) => Monoid (Rec1 f p) | Since: base-4.12.0.0 |
| (Monoid a, Monoid b, Monoid c) => Monoid (a, b, c) | Since: base-2.1 |
| Monoid a => Monoid (Const a b) | Since: base-4.9.0.0 |
| (Applicative f, Monoid a) => Monoid (Ap f a) | Since: base-4.12.0.0 |
| Alternative f => Monoid (Alt f a) | Since: base-4.8.0.0 |
| Monoid c => Monoid (K1 i c p) | Since: base-4.12.0.0 |
| (Monoid (f p), Monoid (g p)) => Monoid ((f :*: g) p) | Since: base-4.12.0.0 |
| (Monoid a, Monoid b, Monoid c, Monoid d) => Monoid (a, b, c, d) | Since: base-2.1 |
| Monoid (f p) => Monoid (M1 i c f p) | Since: base-4.12.0.0 |
| Monoid (f (g p)) => Monoid ((f :.: g) p) | Since: base-4.12.0.0 |
| (Monoid a, Monoid b, Monoid c, Monoid d, Monoid e) => Monoid (a, b, c, d, e) | Since: base-2.1 |
Instances
| Bounded Bool | Since: base-2.1 |
| Enum Bool | Since: base-2.1 |
| Eq Bool | |
| Ord Bool | |
| Read Bool | Since: base-2.1 |
| Show Bool | Since: base-2.1 |
| Ix Bool | Since: base-2.1 |
| Generic Bool | Since: base-4.6.0.0 |
| Storable Bool | Since: base-2.1 |
Defined in Foreign.Storable | |
| Bits Bool | Interpret Since: base-4.7.0.0 |
Defined in Data.Bits Methods (.&.) :: Bool -> Bool -> Bool # (.|.) :: Bool -> Bool -> Bool # complement :: Bool -> Bool # shift :: Bool -> Int -> Bool # rotate :: Bool -> Int -> Bool # setBit :: Bool -> Int -> Bool # clearBit :: Bool -> Int -> Bool # complementBit :: Bool -> Int -> Bool # testBit :: Bool -> Int -> Bool # bitSizeMaybe :: Bool -> Maybe Int # shiftL :: Bool -> Int -> Bool # unsafeShiftL :: Bool -> Int -> Bool # shiftR :: Bool -> Int -> Bool # unsafeShiftR :: Bool -> Int -> Bool # rotateL :: Bool -> Int -> Bool # | |
| FiniteBits Bool | Since: base-4.7.0.0 |
Defined in Data.Bits Methods finiteBitSize :: Bool -> Int # countLeadingZeros :: Bool -> Int # countTrailingZeros :: Bool -> Int # | |
| Random Bool | |
| Uniform Bool | |
Defined in System.Random.Internal Methods uniformM :: StatefulGen g m => g -> m Bool Source # | |
| UniformRange Bool | |
Defined in System.Random.Internal | |
| Finite Bool | |
Defined in System.Random.GFinite | |
| SingKind Bool | Since: base-4.9.0.0 |
Defined in GHC.Generics Associated Types type DemoteRep Bool | |
| SingI 'False | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| SingI 'True | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| type Rep Bool | |
| type DemoteRep Bool | |
Defined in GHC.Generics | |
| data Sing (a :: Bool) | |
The character type Char is an enumeration whose values represent
Unicode (or equivalently ISO/IEC 10646) code points (i.e. characters, see
http://www.unicode.org/ for details). This set extends the ISO 8859-1
(Latin-1) character set (the first 256 characters), which is itself an extension
of the ASCII character set (the first 128 characters). A character literal in
Haskell has type Char.
To convert a Char to or from the corresponding Int value defined
by Unicode, use toEnum and fromEnum from the
Enum class respectively (or equivalently ord and
chr).
Instances
| Bounded Char | Since: base-2.1 |
| Enum Char | Since: base-2.1 |
| Eq Char | |
| Ord Char | |
| Read Char | Since: base-2.1 |
| Show Char | Since: base-2.1 |
| Ix Char | Since: base-2.1 |
| PrintfArg Char | Since: base-2.1 |
Defined in Text.Printf | |
| IsChar Char | Since: base-2.1 |
| Storable Char | Since: base-2.1 |
Defined in Foreign.Storable | |
| Random Char | |
| Uniform Char | |
Defined in System.Random.Internal Methods uniformM :: StatefulGen g m => g -> m Char Source # | |
| UniformRange Char | |
Defined in System.Random.Internal | |
| Finite Char | |
Defined in System.Random.GFinite | |
| ErrorList Char | |
Defined in Control.Monad.Trans.Error | |
| PPrint Char Source # | |
| HasColorizer String Source # | |
Defined in XMonad.Actions.GridSelect | |
| Generic1 (URec Char :: k -> Type) | Since: base-4.9.0.0 |
| Foldable (UChar :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UChar m -> m # foldMap :: Monoid m => (a -> m) -> UChar a -> m # foldMap' :: Monoid m => (a -> m) -> UChar a -> m # foldr :: (a -> b -> b) -> b -> UChar a -> b # foldr' :: (a -> b -> b) -> b -> UChar a -> b # foldl :: (b -> a -> b) -> b -> UChar a -> b # foldl' :: (b -> a -> b) -> b -> UChar a -> b # foldr1 :: (a -> a -> a) -> UChar a -> a # foldl1 :: (a -> a -> a) -> UChar a -> a # elem :: Eq a => a -> UChar a -> Bool # maximum :: Ord a => UChar a -> a # minimum :: Ord a => UChar a -> a # | |
| Traversable (UChar :: Type -> Type) | Since: base-4.9.0.0 |
| HasName [Char] Source # | |
| Functor (URec Char :: Type -> Type) | Since: base-4.9.0.0 |
| HasName (X (), [String]) Source # | |
| HasName (X (), String) Source # | |
| HasName (NamedAction, String) Source # | |
Defined in XMonad.Util.NamedActions | |
| Eq (URec Char p) | Since: base-4.9.0.0 |
| Ord (URec Char p) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| Show (URec Char p) | Since: base-4.9.0.0 |
| Generic (URec Char p) | Since: base-4.9.0.0 |
| data URec Char (p :: k) | Used for marking occurrences of Since: base-4.9.0.0 |
| type Rep1 (URec Char :: k -> Type) | |
Defined in GHC.Generics | |
| type Rep (URec Char p) | |
Defined in GHC.Generics | |
Double-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE double-precision type.
Instances
| Eq Double | Note that due to the presence of
Also note that
|
| Floating Double | Since: base-2.1 |
| Ord Double | Note that due to the presence of
Also note that, due to the same,
|
| Read Double | Since: base-2.1 |
| RealFloat Double | Since: base-2.1 |
Defined in GHC.Float Methods floatRadix :: Double -> Integer # floatDigits :: Double -> Int # floatRange :: Double -> (Int, Int) # decodeFloat :: Double -> (Integer, Int) # encodeFloat :: Integer -> Int -> Double # significand :: Double -> Double # scaleFloat :: Int -> Double -> Double # isInfinite :: Double -> Bool # isDenormalized :: Double -> Bool # isNegativeZero :: Double -> Bool # | |
| PrintfArg Double | Since: base-2.1 |
Defined in Text.Printf | |
| Storable Double | Since: base-2.1 |
| Default Double | |
Defined in Data.Default.Class | |
| Random Double | Note - |
| UniformRange Double | |
Defined in System.Random.Internal | |
| Generic1 (URec Double :: k -> Type) | Since: base-4.9.0.0 |
| Foldable (UDouble :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UDouble m -> m # foldMap :: Monoid m => (a -> m) -> UDouble a -> m # foldMap' :: Monoid m => (a -> m) -> UDouble a -> m # foldr :: (a -> b -> b) -> b -> UDouble a -> b # foldr' :: (a -> b -> b) -> b -> UDouble a -> b # foldl :: (b -> a -> b) -> b -> UDouble a -> b # foldl' :: (b -> a -> b) -> b -> UDouble a -> b # foldr1 :: (a -> a -> a) -> UDouble a -> a # foldl1 :: (a -> a -> a) -> UDouble a -> a # elem :: Eq a => a -> UDouble a -> Bool # maximum :: Ord a => UDouble a -> a # minimum :: Ord a => UDouble a -> a # | |
| Traversable (UDouble :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Double :: Type -> Type) | Since: base-4.9.0.0 |
| Eq (URec Double p) | Since: base-4.9.0.0 |
| Ord (URec Double p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methods compare :: URec Double p -> URec Double p -> Ordering # (<) :: URec Double p -> URec Double p -> Bool # (<=) :: URec Double p -> URec Double p -> Bool # (>) :: URec Double p -> URec Double p -> Bool # (>=) :: URec Double p -> URec Double p -> Bool # | |
| Show (URec Double p) | Since: base-4.9.0.0 |
| Generic (URec Double p) | Since: base-4.9.0.0 |
| data URec Double (p :: k) | Used for marking occurrences of Since: base-4.9.0.0 |
| type Rep1 (URec Double :: k -> Type) | |
Defined in GHC.Generics | |
| type Rep (URec Double p) | |
Defined in GHC.Generics | |
Single-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE single-precision type.
Instances
| Eq Float | Note that due to the presence of
Also note that
|
| Floating Float | Since: base-2.1 |
| Ord Float | Note that due to the presence of
Also note that, due to the same,
|
| Read Float | Since: base-2.1 |
| RealFloat Float | Since: base-2.1 |
Defined in GHC.Float Methods floatRadix :: Float -> Integer # floatDigits :: Float -> Int # floatRange :: Float -> (Int, Int) # decodeFloat :: Float -> (Integer, Int) # encodeFloat :: Integer -> Int -> Float # significand :: Float -> Float # scaleFloat :: Int -> Float -> Float # isInfinite :: Float -> Bool # isDenormalized :: Float -> Bool # isNegativeZero :: Float -> Bool # | |
| PrintfArg Float | Since: base-2.1 |
Defined in Text.Printf | |
| Storable Float | Since: base-2.1 |
| Default Float | |
Defined in Data.Default.Class | |
| Random Float | Note - |
| UniformRange Float | |
Defined in System.Random.Internal | |
| Generic1 (URec Float :: k -> Type) | Since: base-4.9.0.0 |
| Foldable (UFloat :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UFloat m -> m # foldMap :: Monoid m => (a -> m) -> UFloat a -> m # foldMap' :: Monoid m => (a -> m) -> UFloat a -> m # foldr :: (a -> b -> b) -> b -> UFloat a -> b # foldr' :: (a -> b -> b) -> b -> UFloat a -> b # foldl :: (b -> a -> b) -> b -> UFloat a -> b # foldl' :: (b -> a -> b) -> b -> UFloat a -> b # foldr1 :: (a -> a -> a) -> UFloat a -> a # foldl1 :: (a -> a -> a) -> UFloat a -> a # elem :: Eq a => a -> UFloat a -> Bool # maximum :: Ord a => UFloat a -> a # minimum :: Ord a => UFloat a -> a # | |
| Traversable (UFloat :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Float :: Type -> Type) | Since: base-4.9.0.0 |
| Eq (URec Float p) | |
| Ord (URec Float p) | |
Defined in GHC.Generics | |
| Show (URec Float p) | |
| Generic (URec Float p) | |
| data URec Float (p :: k) | Used for marking occurrences of Since: base-4.9.0.0 |
| type Rep1 (URec Float :: k -> Type) | |
Defined in GHC.Generics | |
| type Rep (URec Float p) | |
Defined in GHC.Generics | |
A fixed-precision integer type with at least the range [-2^29 .. 2^29-1].
The exact range for a given implementation can be determined by using
minBound and maxBound from the Bounded class.
Instances
| Bounded Int | Since: base-2.1 |
| Enum Int | Since: base-2.1 |
| Eq Int | |
| Integral Int | Since: base-2.0.1 |
| Num Int | Since: base-2.1 |
| Ord Int | |
| Read Int | Since: base-2.1 |
| Real Int | Since: base-2.0.1 |
Defined in GHC.Real Methods toRational :: Int -> Rational # | |
| Show Int | Since: base-2.1 |
| Ix Int | Since: base-2.1 |
| PrintfArg Int | Since: base-2.1 |
Defined in Text.Printf | |
| Storable Int | Since: base-2.1 |
Defined in Foreign.Storable | |
| Bits Int | Since: base-2.1 |
Defined in Data.Bits | |
| FiniteBits Int | Since: base-4.6.0.0 |
Defined in Data.Bits Methods finiteBitSize :: Int -> Int # countLeadingZeros :: Int -> Int # countTrailingZeros :: Int -> Int # | |
| Default Int | |
Defined in Data.Default.Class | |
| Random Int | |
| Uniform Int | |
Defined in System.Random.Internal Methods uniformM :: StatefulGen g m => g -> m Int Source # | |
| UniformRange Int | |
Defined in System.Random.Internal | |
| Finite Int | |
Defined in System.Random.GFinite | |
| PPrint Int Source # | |
| Generic1 (URec Int :: k -> Type) | Since: base-4.9.0.0 |
| Foldable (UInt :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UInt m -> m # foldMap :: Monoid m => (a -> m) -> UInt a -> m # foldMap' :: Monoid m => (a -> m) -> UInt a -> m # foldr :: (a -> b -> b) -> b -> UInt a -> b # foldr' :: (a -> b -> b) -> b -> UInt a -> b # foldl :: (b -> a -> b) -> b -> UInt a -> b # foldl' :: (b -> a -> b) -> b -> UInt a -> b # foldr1 :: (a -> a -> a) -> UInt a -> a # foldl1 :: (a -> a -> a) -> UInt a -> a # elem :: Eq a => a -> UInt a -> Bool # maximum :: Ord a => UInt a -> a # | |
| Traversable (UInt :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Int :: Type -> Type) | Since: base-4.9.0.0 |
| Eq (URec Int p) | Since: base-4.9.0.0 |
| Ord (URec Int p) | Since: base-4.9.0.0 |
| Show (URec Int p) | Since: base-4.9.0.0 |
| Generic (URec Int p) | Since: base-4.9.0.0 |
| data URec Int (p :: k) | Used for marking occurrences of Since: base-4.9.0.0 |
| type Rep1 (URec Int :: k -> Type) | |
Defined in GHC.Generics | |
| type Rep (URec Int p) | |
Defined in GHC.Generics | |
Arbitrary precision integers. In contrast with fixed-size integral types
such as Int, the Integer type represents the entire infinite range of
integers.
For more information about this type's representation, see the comments in its implementation.
Instances
The Maybe type encapsulates an optional value. A value of type
either contains a value of type Maybe aa (represented as ),
or it is empty (represented as Just aNothing). Using Maybe is a good way to
deal with errors or exceptional cases without resorting to drastic
measures such as error.
The Maybe type is also a monad. It is a simple kind of error
monad, where all errors are represented by Nothing. A richer
error monad can be built using the Either type.
Instances
| Monad Maybe | Since: base-2.1 |
| Functor Maybe | Since: base-2.1 |
| MonadFix Maybe | Since: base-2.1 |
Defined in Control.Monad.Fix | |
| MonadFail Maybe | Since: base-4.9.0.0 |
Defined in Control.Monad.Fail | |
| Applicative Maybe | Since: base-2.1 |
| Foldable Maybe | Since: base-2.1 |
Defined in Data.Foldable Methods fold :: Monoid m => Maybe m -> m # foldMap :: Monoid m => (a -> m) -> Maybe a -> m # foldMap' :: Monoid m => (a -> m) -> Maybe a -> m # foldr :: (a -> b -> b) -> b -> Maybe a -> b # foldr' :: (a -> b -> b) -> b -> Maybe a -> b # foldl :: (b -> a -> b) -> b -> Maybe a -> b # foldl' :: (b -> a -> b) -> b -> Maybe a -> b # foldr1 :: (a -> a -> a) -> Maybe a -> a # foldl1 :: (a -> a -> a) -> Maybe a -> a # elem :: Eq a => a -> Maybe a -> Bool # maximum :: Ord a => Maybe a -> a # minimum :: Ord a => Maybe a -> a # | |
| Traversable Maybe | Since: base-2.1 |
| Eq1 Maybe | Since: base-4.9.0.0 |
| Ord1 Maybe | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes | |
| Read1 Maybe | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes | |
| Show1 Maybe | Since: base-4.9.0.0 |
| Alternative Maybe | Since: base-2.1 |
| MonadPlus Maybe | Since: base-2.1 |
| MonadError () Maybe | Since: mtl-2.2.2 |
Defined in Control.Monad.Error.Class | |
| Eq a => Eq (Maybe a) | Since: base-2.1 |
| Ord a => Ord (Maybe a) | Since: base-2.1 |
| Read a => Read (Maybe a) | Since: base-2.1 |
| Show a => Show (Maybe a) | Since: base-2.1 |
| Generic (Maybe a) | Since: base-4.6.0.0 |
| Semigroup a => Semigroup (Maybe a) | Since: base-4.9.0.0 |
| Semigroup a => Monoid (Maybe a) | Lift a semigroup into Since 4.11.0: constraint on inner Since: base-2.1 |
| Default (Maybe a) | |
Defined in Data.Default.Class | |
| Finite a => Finite (Maybe a) | |
Defined in System.Random.GFinite Methods cardinality :: Proxy# (Maybe a) -> Cardinality toFinite :: Integer -> Maybe a fromFinite :: Maybe a -> Integer | |
| SingKind a => SingKind (Maybe a) | Since: base-4.9.0.0 |
Defined in GHC.Generics Associated Types type DemoteRep (Maybe a) | |
| PPrint a => PPrint (Maybe a) Source # | |
| Generic1 Maybe | Since: base-4.6.0.0 |
| (Show s, Read s, Typeable s) => MonadState (Maybe s) (StateQuery s) Source # | Instance of MonadState for StateQuery. |
Defined in XMonad.Util.WindowState Methods get :: StateQuery s (Maybe s) # put :: Maybe s -> StateQuery s () # state :: (Maybe s -> (a, Maybe s)) -> StateQuery s a # | |
| SingI ('Nothing :: Maybe a) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| SingI a2 => SingI ('Just a2 :: Maybe a1) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| type Rep (Maybe a) | |
Defined in GHC.Generics | |
| type DemoteRep (Maybe a) | |
Defined in GHC.Generics | |
| data Sing (b :: Maybe a) | |
| type Rep1 Maybe | |
Instances
| Bounded Ordering | Since: base-2.1 |
| Enum Ordering | Since: base-2.1 |
| Eq Ordering | |
| Ord Ordering | |
Defined in GHC.Classes | |
| Read Ordering | Since: base-2.1 |
| Show Ordering | Since: base-2.1 |
| Ix Ordering | Since: base-2.1 |
Defined in GHC.Ix Methods range :: (Ordering, Ordering) -> [Ordering] # index :: (Ordering, Ordering) -> Ordering -> Int # unsafeIndex :: (Ordering, Ordering) -> Ordering -> Int # inRange :: (Ordering, Ordering) -> Ordering -> Bool # rangeSize :: (Ordering, Ordering) -> Int # unsafeRangeSize :: (Ordering, Ordering) -> Int # | |
| Generic Ordering | Since: base-4.6.0.0 |
| Semigroup Ordering | Since: base-4.9.0.0 |
| Monoid Ordering | Since: base-2.1 |
| Default Ordering | |
Defined in Data.Default.Class | |
| Finite Ordering | |
Defined in System.Random.GFinite Methods cardinality :: Proxy# Ordering -> Cardinality toFinite :: Integer -> Ordering fromFinite :: Ordering -> Integer | |
| type Rep Ordering | |
A value of type is a computation which, when performed,
does some I/O before returning a value of type IO aa.
There is really only one way to "perform" an I/O action: bind it to
Main.main in your program. When your program is run, the I/O will
be performed. It isn't possible to perform I/O from an arbitrary
function, unless that function is itself in the IO monad and called
at some point, directly or indirectly, from Main.main.
IO is a monad, so IO actions can be combined using either the do-notation
or the >> and >>= operations from the Monad
class.
Instances
| Monad IO | Since: base-2.1 |
| Functor IO | Since: base-2.1 |
| MonadFix IO | Since: base-2.1 |
Defined in Control.Monad.Fix | |
| MonadFail IO | Since: base-4.9.0.0 |
Defined in Control.Monad.Fail | |
| Applicative IO | Since: base-2.1 |
| MonadIO IO | Since: base-4.9.0.0 |
Defined in Control.Monad.IO.Class | |
| Alternative IO | Since: base-4.9.0.0 |
| MonadPlus IO | Since: base-4.9.0.0 |
| MonadError IOException IO | |
Defined in Control.Monad.Error.Class | |
| Semigroup a => Semigroup (IO a) | Since: base-4.10.0.0 |
| Monoid a => Monoid (IO a) | Since: base-4.9.0.0 |
| a ~ () => PrintfType (IO a) | Since: base-4.7.0.0 |
Defined in Text.Printf | |
| a ~ () => HPrintfType (IO a) | Since: base-4.7.0.0 |
Defined in Text.Printf | |
| Default a => Default (IO a) | |
Defined in Data.Default.Class | |
| HasName (IO ()) Source # | |
Instances
| Bounded Word | Since: base-2.1 |
| Enum Word | Since: base-2.1 |
| Eq Word | |
| Integral Word | Since: base-2.1 |
| Num Word | Since: base-2.1 |
| Ord Word | |
| Read Word | Since: base-4.5.0.0 |
| Real Word | Since: base-2.1 |
Defined in GHC.Real Methods toRational :: Word -> Rational # | |
| Show Word | Since: base-2.1 |
| Ix Word | Since: base-4.6.0.0 |
| PrintfArg Word | Since: base-2.1 |
Defined in Text.Printf | |
| Storable Word | Since: base-2.1 |
Defined in Foreign.Storable | |
| Bits Word | Since: base-2.1 |
Defined in Data.Bits Methods (.&.) :: Word -> Word -> Word # (.|.) :: Word -> Word -> Word # complement :: Word -> Word # shift :: Word -> Int -> Word # rotate :: Word -> Int -> Word # setBit :: Word -> Int -> Word # clearBit :: Word -> Int -> Word # complementBit :: Word -> Int -> Word # testBit :: Word -> Int -> Bool # bitSizeMaybe :: Word -> Maybe Int # shiftL :: Word -> Int -> Word # unsafeShiftL :: Word -> Int -> Word # shiftR :: Word -> Int -> Word # unsafeShiftR :: Word -> Int -> Word # rotateL :: Word -> Int -> Word # | |
| FiniteBits Word | Since: base-4.6.0.0 |
Defined in Data.Bits Methods finiteBitSize :: Word -> Int # countLeadingZeros :: Word -> Int # countTrailingZeros :: Word -> Int # | |
| Default Word | |
Defined in Data.Default.Class | |
| Random Word | |
| Uniform Word | |
Defined in System.Random.Internal Methods uniformM :: StatefulGen g m => g -> m Word Source # | |
| UniformRange Word | |
Defined in System.Random.Internal | |
| Finite Word | |
Defined in System.Random.GFinite | |
| Generic1 (URec Word :: k -> Type) | Since: base-4.9.0.0 |
| Foldable (UWord :: Type -> Type) | Since: base-4.9.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => UWord m -> m # foldMap :: Monoid m => (a -> m) -> UWord a -> m # foldMap' :: Monoid m => (a -> m) -> UWord a -> m # foldr :: (a -> b -> b) -> b -> UWord a -> b # foldr' :: (a -> b -> b) -> b -> UWord a -> b # foldl :: (b -> a -> b) -> b -> UWord a -> b # foldl' :: (b -> a -> b) -> b -> UWord a -> b # foldr1 :: (a -> a -> a) -> UWord a -> a # foldl1 :: (a -> a -> a) -> UWord a -> a # elem :: Eq a => a -> UWord a -> Bool # maximum :: Ord a => UWord a -> a # minimum :: Ord a => UWord a -> a # | |
| Traversable (UWord :: Type -> Type) | Since: base-4.9.0.0 |
| Functor (URec Word :: Type -> Type) | Since: base-4.9.0.0 |
| Eq (URec Word p) | Since: base-4.9.0.0 |
| Ord (URec Word p) | Since: base-4.9.0.0 |
Defined in GHC.Generics | |
| Show (URec Word p) | Since: base-4.9.0.0 |
| Generic (URec Word p) | Since: base-4.9.0.0 |
| data URec Word (p :: k) | Used for marking occurrences of Since: base-4.9.0.0 |
| type Rep1 (URec Word :: k -> Type) | |
Defined in GHC.Generics | |
| type Rep (URec Word p) | |
Defined in GHC.Generics | |
The Either type represents values with two possibilities: a value of
type is either Either a b or Left a.Right b
The Either type is sometimes used to represent a value which is
either correct or an error; by convention, the Left constructor is
used to hold an error value and the Right constructor is used to
hold a correct value (mnemonic: "right" also means "correct").
Examples
The type is the type of values which can be either
a Either String IntString or an Int. The Left constructor can be used only on
Strings, and the Right constructor can be used only on Ints:
>>>let s = Left "foo" :: Either String Int>>>sLeft "foo">>>let n = Right 3 :: Either String Int>>>nRight 3>>>:type ss :: Either String Int>>>:type nn :: Either String Int
The fmap from our Functor instance will ignore Left values, but
will apply the supplied function to values contained in a Right:
>>>let s = Left "foo" :: Either String Int>>>let n = Right 3 :: Either String Int>>>fmap (*2) sLeft "foo">>>fmap (*2) nRight 6
The Monad instance for Either allows us to chain together multiple
actions which may fail, and fail overall if any of the individual
steps failed. First we'll write a function that can either parse an
Int from a Char, or fail.
>>>import Data.Char ( digitToInt, isDigit )>>>:{let parseEither :: Char -> Either String Int parseEither c | isDigit c = Right (digitToInt c) | otherwise = Left "parse error">>>:}
The following should work, since both '1' and '2' can be
parsed as Ints.
>>>:{let parseMultiple :: Either String Int parseMultiple = do x <- parseEither '1' y <- parseEither '2' return (x + y)>>>:}
>>>parseMultipleRight 3
But the following should fail overall, since the first operation where
we attempt to parse 'm' as an Int will fail:
>>>:{let parseMultiple :: Either String Int parseMultiple = do x <- parseEither 'm' y <- parseEither '2' return (x + y)>>>:}
>>>parseMultipleLeft "parse error"
Instances
| Bifunctor Either | Since: base-4.8.0.0 |
| Eq2 Either | Since: base-4.9.0.0 |
| Ord2 Either | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes | |
| Read2 Either | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes Methods liftReadsPrec2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> Int -> ReadS (Either a b) # liftReadList2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> ReadS [Either a b] # liftReadPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec (Either a b) # liftReadListPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec [Either a b] # | |
| Show2 Either | Since: base-4.9.0.0 |
| MonadError e (Either e) | |
Defined in Control.Monad.Error.Class | |
| Monad (Either e) | Since: base-4.4.0.0 |
| Functor (Either a) | Since: base-3.0 |
| MonadFix (Either e) | Since: base-4.3.0.0 |
Defined in Control.Monad.Fix | |
| Applicative (Either e) | Since: base-3.0 |
| Foldable (Either a) | Since: base-4.7.0.0 |
Defined in Data.Foldable Methods fold :: Monoid m => Either a m -> m # foldMap :: Monoid m => (a0 -> m) -> Either a a0 -> m # foldMap' :: Monoid m => (a0 -> m) -> Either a a0 -> m # foldr :: (a0 -> b -> b) -> b -> Either a a0 -> b # foldr' :: (a0 -> b -> b) -> b -> Either a a0 -> b # foldl :: (b -> a0 -> b) -> b -> Either a a0 -> b # foldl' :: (b -> a0 -> b) -> b -> Either a a0 -> b # foldr1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 # foldl1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 # toList :: Either a a0 -> [a0] # length :: Either a a0 -> Int # elem :: Eq a0 => a0 -> Either a a0 -> Bool # maximum :: Ord a0 => Either a a0 -> a0 # minimum :: Ord a0 => Either a a0 -> a0 # | |
| Traversable (Either a) | Since: base-4.7.0.0 |
Defined in Data.Traversable | |
| Eq a => Eq1 (Either a) | Since: base-4.9.0.0 |
| Ord a => Ord1 (Either a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes | |
| Read a => Read1 (Either a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Classes Methods liftReadsPrec :: (Int -> ReadS a0) -> ReadS [a0] -> Int -> ReadS (Either a a0) # liftReadList :: (Int -> ReadS a0) -> ReadS [a0] -> ReadS [Either a a0] # liftReadPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec (Either a a0) # liftReadListPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec [Either a a0] # | |
| Show a => Show1 (Either a) | Since: base-4.9.0.0 |
| Generic1 (Either a :: Type -> Type) | Since: base-4.6.0.0 |
| (Eq a, Eq b) => Eq (Either a b) | Since: base-2.1 |
| (Ord a, Ord b) => Ord (Either a b) | Since: base-2.1 |
| (Read a, Read b) => Read (Either a b) | Since: base-3.0 |
| (Show a, Show b) => Show (Either a b) | Since: base-3.0 |
| Generic (Either a b) | Since: base-4.6.0.0 |
| Semigroup (Either a b) | Since: base-4.9.0.0 |
| (Finite a, Finite b) => Finite (Either a b) | |
Defined in System.Random.GFinite Methods cardinality :: Proxy# (Either a b) -> Cardinality toFinite :: Integer -> Either a b fromFinite :: Either a b -> Integer | |
| type Rep1 (Either a :: Type -> Type) | |
Defined in GHC.Generics type Rep1 (Either a :: Type -> Type) = D1 ('MetaData "Either" "Data.Either" "base" 'False) (C1 ('MetaCons "Left" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)) :+: C1 ('MetaCons "Right" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) Par1)) | |
| type Rep (Either a b) | |
Defined in GHC.Generics type Rep (Either a b) = D1 ('MetaData "Either" "Data.Either" "base" 'False) (C1 ('MetaCons "Left" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)) :+: C1 ('MetaCons "Right" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 b))) | |
appendFile :: FilePath -> String -> IO () #
The computation appendFile file str function appends the string str,
to the file file.
Note that writeFile and appendFile write a literal string
to a file. To write a value of any printable type, as with print,
use the show function to convert the value to a string first.
main = appendFile "squares" (show [(x,x*x) | x <- [0,0.1..2]])
writeFile :: FilePath -> String -> IO () #
The computation writeFile file str function writes the string str,
to the file file.
readFile :: FilePath -> IO String #
The readFile function reads a file and
returns the contents of the file as a string.
The file is read lazily, on demand, as with getContents.
interact :: (String -> String) -> IO () #
The interact function takes a function of type String->String
as its argument. The entire input from the standard input device is
passed to this function as its argument, and the resulting string is
output on the standard output device.
getContents :: IO String #
The getContents operation returns all user input as a single string,
which is read lazily as it is needed
(same as hGetContents stdin).
File and directory names are values of type String, whose precise
meaning is operating system dependent. Files can be opened, yielding a
handle which can then be used to operate on the contents of that file.
type IOError = IOException #
all :: Foldable t => (a -> Bool) -> t a -> Bool #
Determines whether all elements of the structure satisfy the predicate.
any :: Foldable t => (a -> Bool) -> t a -> Bool #
Determines whether any element of the structure satisfies the predicate.
concatMap :: Foldable t => (a -> [b]) -> t a -> [b] #
Map a function over all the elements of a container and concatenate the resulting lists.
concat :: Foldable t => t [a] -> [a] #
The concatenation of all the elements of a container of lists.
sequence_ :: (Foldable t, Monad m) => t (m a) -> m () #
Evaluate each monadic action in the structure from left to right,
and ignore the results. For a version that doesn't ignore the
results see sequence.
As of base 4.8.0.0, sequence_ is just sequenceA_, specialized
to Monad.
words breaks a string up into a list of words, which were delimited
by white space.
>>>words "Lorem ipsum\ndolor"["Lorem","ipsum","dolor"]
lines breaks a string up into a list of strings at newline
characters. The resulting strings do not contain newlines.
Note that after splitting the string at newline characters, the last part of the string is considered a line even if it doesn't end with a newline. For example,
>>>lines ""[]
>>>lines "\n"[""]
>>>lines "one"["one"]
>>>lines "one\n"["one"]
>>>lines "one\n\n"["one",""]
>>>lines "one\ntwo"["one","two"]
>>>lines "one\ntwo\n"["one","two"]
Thus contains at least as many elements as newlines in lines ss.
read :: Read a => String -> a #
The read function reads input from a string, which must be
completely consumed by the input process. read fails with an error if the
parse is unsuccessful, and it is therefore discouraged from being used in
real applications. Use readMaybe or readEither for safe alternatives.
>>>read "123" :: Int123
>>>read "hello" :: Int*** Exception: Prelude.read: no parse
either :: (a -> c) -> (b -> c) -> Either a b -> c #
Case analysis for the Either type.
If the value is , apply the first function to Left aa;
if it is , apply the second function to Right bb.
Examples
We create two values of type , one using the
Either String IntLeft constructor and another using the Right constructor. Then
we apply "either" the length function (if we have a String)
or the "times-two" function (if we have an Int):
>>>let s = Left "foo" :: Either String Int>>>let n = Right 3 :: Either String Int>>>either length (*2) s3>>>either length (*2) n6
The lex function reads a single lexeme from the input, discarding
initial white space, and returning the characters that constitute the
lexeme. If the input string contains only white space, lex returns a
single successful `lexeme' consisting of the empty string. (Thus
.) If there is no legal lexeme at the
beginning of the input string, lex "" = [("","")]lex fails (i.e. returns []).
This lexer is not completely faithful to the Haskell lexical syntax in the following respects:
- Qualified names are not handled properly
- Octal and hexadecimal numerics are not recognized as a single token
- Comments are not treated properly
lcm :: Integral a => a -> a -> a #
is the smallest positive integer that both lcm x yx and y divide.
gcd :: Integral a => a -> a -> a #
is the non-negative factor of both gcd x yx and y of which
every common factor of x and y is also a factor; for example
, gcd 4 2 = 2, gcd (-4) 6 = 2 = gcd 0 44. = gcd 0 00.
(That is, the common divisor that is "greatest" in the divisibility
preordering.)
Note: Since for signed fixed-width integer types, ,
the result may be negative if one of the arguments is abs minBound < 0 (and
necessarily is if the other is minBound0 or ) for such types.minBound
(^^) :: (Fractional a, Integral b) => a -> b -> a infixr 8 #
raise a number to an integral power
showString :: String -> ShowS #
utility function converting a String to a show function that
simply prepends the string unchanged.
utility function converting a Char to a show function that
simply prepends the character unchanged.
unzip :: [(a, b)] -> ([a], [b]) #
unzip transforms a list of pairs into a list of first components
and a list of second components.
zipWith :: (a -> b -> c) -> [a] -> [b] -> [c] #
\(\mathcal{O}(\min(m,n))\). zipWith generalises zip by zipping with the
function given as the first argument, instead of a tupling function. For
example, is applied to two lists to produce the list of
corresponding sums:zipWith (+)
>>>zipWith (+) [1, 2, 3] [4, 5, 6][5,7,9]
zipWith is right-lazy:
zipWith f [] _|_ = []
zipWith is capable of list fusion, but it is restricted to its
first list argument and its resulting list.
(!!) :: [a] -> Int -> a infixl 9 #
List index (subscript) operator, starting from 0.
It is an instance of the more general genericIndex,
which takes an index of any integral type.
lookup :: Eq a => a -> [(a, b)] -> Maybe b #
\(\mathcal{O}(n)\). lookup key assocs looks up a key in an association
list.
>>>lookup 2 [(1, "first"), (2, "second"), (3, "third")]Just "second"
break :: (a -> Bool) -> [a] -> ([a], [a]) #
break, applied to a predicate p and a list xs, returns a tuple where
first element is longest prefix (possibly empty) of xs of elements that
do not satisfy p and second element is the remainder of the list:
break (> 3) [1,2,3,4,1,2,3,4] == ([1,2,3],[4,1,2,3,4]) break (< 9) [1,2,3] == ([],[1,2,3]) break (> 9) [1,2,3] == ([1,2,3],[])
span :: (a -> Bool) -> [a] -> ([a], [a]) #
span, applied to a predicate p and a list xs, returns a tuple where
first element is longest prefix (possibly empty) of xs of elements that
satisfy p and second element is the remainder of the list:
span (< 3) [1,2,3,4,1,2,3,4] == ([1,2],[3,4,1,2,3,4]) span (< 9) [1,2,3] == ([1,2,3],[]) span (< 0) [1,2,3] == ([],[1,2,3])
splitAt :: Int -> [a] -> ([a], [a]) #
splitAt n xs returns a tuple where first element is xs prefix of
length n and second element is the remainder of the list:
splitAt 6 "Hello World!" == ("Hello ","World!")
splitAt 3 [1,2,3,4,5] == ([1,2,3],[4,5])
splitAt 1 [1,2,3] == ([1],[2,3])
splitAt 3 [1,2,3] == ([1,2,3],[])
splitAt 4 [1,2,3] == ([1,2,3],[])
splitAt 0 [1,2,3] == ([],[1,2,3])
splitAt (-1) [1,2,3] == ([],[1,2,3])It is equivalent to ( when take n xs, drop n xs)n is not _|_
(splitAt _|_ xs = _|_).
splitAt is an instance of the more general genericSplitAt,
in which n may be of any integral type.
drop n xs returns the suffix of xs
after the first n elements, or [] if n > :length xs
drop 6 "Hello World!" == "World!" drop 3 [1,2,3,4,5] == [4,5] drop 3 [1,2] == [] drop 3 [] == [] drop (-1) [1,2] == [1,2] drop 0 [1,2] == [1,2]
It is an instance of the more general genericDrop,
in which n may be of any integral type.
take n, applied to a list xs, returns the prefix of xs
of length n, or xs itself if n > :length xs
take 5 "Hello World!" == "Hello" take 3 [1,2,3,4,5] == [1,2,3] take 3 [1,2] == [1,2] take 3 [] == [] take (-1) [1,2] == [] take 0 [1,2] == []
It is an instance of the more general genericTake,
in which n may be of any integral type.
takeWhile :: (a -> Bool) -> [a] -> [a] #
takeWhile, applied to a predicate p and a list xs, returns the
longest prefix (possibly empty) of xs of elements that satisfy p:
takeWhile (< 3) [1,2,3,4,1,2,3,4] == [1,2] takeWhile (< 9) [1,2,3] == [1,2,3] takeWhile (< 0) [1,2,3] == []
cycle ties a finite list into a circular one, or equivalently,
the infinite repetition of the original list. It is the identity
on infinite lists.
replicate :: Int -> a -> [a] #
replicate n x is a list of length n with x the value of
every element.
It is an instance of the more general genericReplicate,
in which n may be of any integral type.
\(\mathcal{O}(n)\). Return all the elements of a list except the last one. The list must be non-empty.
\(\mathcal{O}(n)\). Extract the last element of a list, which must be finite and non-empty.
\(\mathcal{O}(1)\). Extract the elements after the head of a list, which must be non-empty.
maybe :: b -> (a -> b) -> Maybe a -> b #
The maybe function takes a default value, a function, and a Maybe
value. If the Maybe value is Nothing, the function returns the
default value. Otherwise, it applies the function to the value inside
the Just and returns the result.
Examples
Basic usage:
>>>maybe False odd (Just 3)True
>>>maybe False odd NothingFalse
Read an integer from a string using readMaybe. If we succeed,
return twice the integer; that is, apply (*2) to it. If instead
we fail to parse an integer, return 0 by default:
>>>import Text.Read ( readMaybe )>>>maybe 0 (*2) (readMaybe "5")10>>>maybe 0 (*2) (readMaybe "")0
Apply show to a Maybe Int. If we have Just n, we want to show
the underlying Int n. But if we have Nothing, we return the
empty string instead of (for example) "Nothing":
>>>maybe "" show (Just 5)"5">>>maybe "" show Nothing""
(<$>) :: Functor f => (a -> b) -> f a -> f b infixl 4 #
An infix synonym for fmap.
The name of this operator is an allusion to $.
Note the similarities between their types:
($) :: (a -> b) -> a -> b (<$>) :: Functor f => (a -> b) -> f a -> f b
Whereas $ is function application, <$> is function
application lifted over a Functor.
Examples
Convert from a to a Maybe Int using Maybe
Stringshow:
>>>show <$> NothingNothing>>>show <$> Just 3Just "3"
Convert from an to an
Either Int IntEither IntString using show:
>>>show <$> Left 17Left 17>>>show <$> Right 17Right "17"
Double each element of a list:
>>>(*2) <$> [1,2,3][2,4,6]
Apply even to the second element of a pair:
>>>even <$> (2,2)(2,True)
uncurry :: (a -> b -> c) -> (a, b) -> c #
uncurry converts a curried function to a function on pairs.
Examples
>>>uncurry (+) (1,2)3
>>>uncurry ($) (show, 1)"1"
>>>map (uncurry max) [(1,2), (3,4), (6,8)][2,4,8]
until :: (a -> Bool) -> (a -> a) -> a -> a #
yields the result of applying until p ff until p holds.
($!) :: forall (r :: RuntimeRep) a (b :: TYPE r). (a -> b) -> a -> b infixr 0 #
Strict (call-by-value) application operator. It takes a function and an argument, evaluates the argument to weak head normal form (WHNF), then calls the function with that value.
flip :: (a -> b -> c) -> b -> a -> c #
takes its (first) two arguments in the reverse order of flip ff.
>>>flip (++) "hello" "world""worldhello"
const x is a unary function which evaluates to x for all inputs.
>>>const 42 "hello"42
>>>map (const 42) [0..3][42,42,42,42]
(=<<) :: Monad m => (a -> m b) -> m a -> m b infixr 1 #
Same as >>=, but with the arguments interchanged.
undefined :: forall (r :: RuntimeRep) (a :: TYPE r). HasCallStack => a #
errorWithoutStackTrace :: forall (r :: RuntimeRep) (a :: TYPE r). [Char] -> a #
A variant of error that does not produce a stack trace.
Since: base-4.9.0.0
error :: forall (r :: RuntimeRep) (a :: TYPE r). HasCallStack => [Char] -> a #
error stops execution and displays an error message.
Core
These are the building blocks on which the config language is built. Regular people shouldn't need to know about these.
type Prime l l' = Arr (XConfig l) (XConfig l') Source #
A Prime is a function that transforms an XConfig. It's not a monad, but we turn on RebindableSyntax so we can abuse the pretty do notation.
type Arr x y = x -> IO y Source #
An Arr is a generalization of Prime. Don't reference the type, if you can avoid it. It might go away in the future.
ifThenElse :: Bool -> a -> a -> a Source #
Because of RebindableSyntax, this is necessary to enable you to use if-then-else expressions. No need to call it directly.
Example config
As an example, I've included below a subset of my current config. Note that my import statements specify individual identifiers in parentheticals. That's optional. The default is to import the entire module. I just find it helpful to remind me where things came from.
{-# LANGUAGE RebindableSyntax #-}
import XMonad.Config.Prime
import XMonad.Actions.CycleWS (prevWS, nextWS)
import XMonad.Actions.SwapWorkspaces (swapWithCurrent)
import XMonad.Actions.WindowNavigation (withWindowNavigation)
import XMonad.Layout.Fullscreen (fullscreenSupport)
import XMonad.Layout.NoBorders (smartBorders)
import XMonad.Layout.Tabbed (simpleTabbed)
main = xmonad $ do
modMask =: mod4Mask
normalBorderColor =: "#222222"
terminal =: "urxvt"
focusFollowsMouse =: False
resetLayout $ Tall 1 (3/100) (1/2) ||| simpleTabbed
modifyLayout smartBorders
apply fullscreenSupport
applyIO $ withWindowNavigation (xK_w, xK_a, xK_s, xK_d)
withWorkspaces $ do
wsKeys =+ ["0"]
wsActions =+ [("M-M1-", windows . swapWithCurrent)]
keys =+ [
("M-,", sendMessage $ IncMasterN (-1)),
("M-.", sendMessage $ IncMasterN 1),
("M-M1-d", spawn "date | dzen2 -fg '#eeeeee' -p 2"),
("C-S-q", return ()),
("<XF86AudioLowerVolume>", spawn "amixer set Master 5%-"),
("<XF86AudioRaiseVolume>", spawn "amixer set Master 5%+"),
("M-M1-x", kill),
("M-i", prevWS),
("M-o", nextWS)
]Troubleshooting
Only the last line of my config seems to take effect. What gives?
You're missing the {-# LANGUAGE RebindableSyntax #-} line at the top.
How do I do use normal monads like X or IO?
Here are a couple of ways:
import qualified Prelude as P
...
test1, test2 :: X ()
test1 = spawn "echo Hi" P.>> spawn "echo Bye"
test2 = do spawn "echo Hi"
spawn "echo Bye"
where (>>) = (P.>>)How do I use the old keyboard syntax?
You can use apply and supply your own Haskell function. For instance:
apply $ flip additionalKeys $ [((mod1Mask, xK_z), spawn "date | dzen2 -fg '#eeeeee' -p 2")]
How do I run a command before xmonad starts (like spawnPipe)?
If you're using it for a status bar, see if dzen
or xmobar does what you want. If so, you can apply
it with applyIO.
If not, you can write your own XConfig l -> IO (XConfig l) and apply it
with applyIO. When writing this function, see the above tip about using
normal monads.
Alternatively, you could do something like this this:
import qualified Prelude as P (>>)
main =
openFile ".xmonad.log" AppendMode >>= \log ->
hSetBuffering log LineBuffering P.>>
(xmonad $ do
nothing -- Prime config here.
)