Basement.Terminal.ANSI

ANSI Terminal escape for cursor and attributes manipulations

On Unix system, it should be supported by most terminal emulators.

On Windows system, all escape sequences are empty for maximum compatibility purpose, and easy implementation. newer version of Windows 10 supports ANSI escape now, but we'll need some kind of detection.

Types

type Escape = String

type Displacement = Word64

type ColorComponent = Zn64 8

Simple color component on 8 color terminal (maximum compatibility)

type GrayComponent = Zn64 24

Gray color compent on 256colors terminals

type RGBComponent = Zn64 6

Color compent on 256colors terminals

Simple ANSI escape factory functions

cursorUp :: Displacement -> Escape

cursorDown :: Displacement -> Escape

cursorForward :: Displacement -> Escape

cursorBack :: Displacement -> Escape

cursorNextLine :: Displacement -> Escape

cursorPrevLine :: Displacement -> Escape

cursorHorizontalAbsolute :: Displacement -> Escape

cursorPosition :: Displacement -> Displacement -> Escape

eraseScreenFromCursor :: Escape

eraseScreenToCursor :: Escape

eraseScreenAll :: Escape

eraseLineFromCursor :: Escape

eraseLineToCursor :: Escape

eraseLineAll :: Escape

scrollUp :: Displacement -> Escape

scrollDown :: Displacement -> Escape

sgrReset :: Escape

All attribute off

sgrForeground :: ColorComponent -> Bool -> Escape

8 Colors + Bold attribute for foreground

sgrBackground :: ColorComponent -> Bool -> Escape

8 Colors + Bold attribute for background

sgrForegroundGray24 :: GrayComponent -> Escape

sgrBackgroundGray24 :: GrayComponent -> Escape

sgrForegroundColor216

Arguments

:: RGBComponent

Red component

-> RGBComponent

Green component

-> RGBComponent

Blue component

-> Escape

sgrBackgroundColor216

Arguments

:: RGBComponent

Red component

-> RGBComponent

Green component

-> RGBComponent

Blue component

-> Escape