Portability	portable (FFI)
Stability	experimental
Maintainer	judah.jacobson@gmail.com

System.Console.Terminfo.Cursor

Contents

Terminal dimensions
Scrolling
Relative cursor movements
- Primitive movement capabilities
Absolute cursor movements

Description

| This module provides capabilities for moving the cursor on the terminal. -}

Synopsis

Terminal dimensions

Get the default size of the terminal. For resizeable terminals (e.g., xterm), these may not correspond to the actual dimensions.

termLines :: Capability Int Source

termColumns :: Capability Int Source

Scrolling

carriageReturn :: Capability TermOutput Source

The cr capability, which moves the cursor to the first column of the current line.

newline :: Capability TermOutput Source

The nel capability, which moves the cursor to the first column of the next line. It behaves like a carriage return followed by a line feed.

If nel is not defined, this may be built out of other capabilities.

scrollForward :: Capability TermOutput Source

scrollReverse :: Capability TermOutput Source

Relative cursor movements

The following functions for cursor movement will combine the more primitive capabilities. For example, moveDown may use either cursorDown or cursorDown1 depending on the parameter and which of cud and cud1 are defined.

moveDown :: Capability (Int -> TermOutput)Source

moveLeft :: Capability (Int -> TermOutput)Source

moveRight :: Capability (Int -> TermOutput)Source

moveUp :: Capability (Int -> TermOutput)Source

Primitive movement capabilities

These capabilities correspond directly to cub, cud, cub1, cud1, etc.

cursorDown1 :: Capability TermOutput Source

cursorLeft1 :: Capability TermOutput Source

cursorRight1 :: Capability TermOutput Source

cursorUp1 :: Capability TermOutput Source

cursorDown :: Capability (Int -> TermOutput)Source

cursorLeft :: Capability (Int -> TermOutput)Source

cursorRight :: Capability (Int -> TermOutput)Source

cursorUp :: Capability (Int -> TermOutput)Source

Absolute cursor movements

cursorAddress :: Capability (Point -> TermOutput)Source

data Point Source

Constructors

Point
Fields row :: Int col :: Int

rowAddress :: Capability (Int -> TermOutput)Source

columnAddress :: Capability (Int -> TermOutput)Source