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Programming language: JavaScript
License: MIT License
Tags: Ansi     Log     Text     Logging     Command Line Utilities     String     Console     Code     Terminal     CLI     Tty     Command-line     Codes     Escape     Shell     Iterm2     Iterm     Cursor     Control     Sequence     Vt100     Xterm     Formatting     Escapes    
Latest version: v4.3.0

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README

ansi-escapes Build Status

ANSI escape codes for manipulating the terminal

Install

$ npm install ansi-escapes

Usage

const ansiEscapes = require('ansi-escapes');

// Moves the cursor two rows up and to the left
process.stdout.write(ansiEscapes.cursorUp(2) + ansiEscapes.cursorLeft);
//=> '\u001B[2A\u001B[1000D'

API

cursorTo(x, y?)

Set the absolute position of the cursor. x0 y0 is the top left of the screen.

cursorMove(x, y?)

Set the position of the cursor relative to its current position.

cursorUp(count)

Move cursor up a specific amount of rows. Default is 1.

cursorDown(count)

Move cursor down a specific amount of rows. Default is 1.

cursorForward(count)

Move cursor forward a specific amount of columns. Default is 1.

cursorBackward(count)

Move cursor backward a specific amount of columns. Default is 1.

cursorLeft

Move cursor to the left side.

cursorSavePosition

Save cursor position.

cursorRestorePosition

Restore saved cursor position.

cursorGetPosition

Get cursor position.

cursorNextLine

Move cursor to the next line.

cursorPrevLine

Move cursor to the previous line.

cursorHide

Hide cursor.

cursorShow

Show cursor.

eraseLines(count)

Erase from the current cursor position up the specified amount of rows.

eraseEndLine

Erase from the current cursor position to the end of the current line.

eraseStartLine

Erase from the current cursor position to the start of the current line.

eraseLine

Erase the entire current line.

eraseDown

Erase the screen from the current line down to the bottom of the screen.

eraseUp

Erase the screen from the current line up to the top of the screen.

eraseScreen

Erase the screen and move the cursor the top left position.

scrollUp

Scroll display up one line.

scrollDown

Scroll display down one line.

clearScreen

Clear the terminal screen. (Viewport)

clearTerminal

Clear the whole terminal, including scrollback buffer. (Not just the visible part of it)

beep

Output a beeping sound.

link(text, url)

Create a clickable link.

Supported terminals. Use supports-hyperlinks to detect link support.

image(filePath, options?)

Display an image.

Currently only supported on iTerm2 >=3

See term-img for a higher-level module.

input

Type: Buffer

Buffer of an image. Usually read in with fs.readFile().

options

Type: object

width
height

Type: string | number

The width and height are given as a number followed by a unit, or the word "auto".

  • N: N character cells.
  • Npx: N pixels.
  • N%: N percent of the session's width or height.
  • auto: The image's inherent size will be used to determine an appropriate dimension.
preserveAspectRatio

Type: boolean\ Default: true

iTerm.setCwd(path?)

Type: string\ Default: process.cwd()

Inform iTerm2 of the current directory to help semantic history and enable Cmd-clicking relative paths.

iTerm.annotation(message, options?)

Creates an escape code to display an "annotation" in iTerm2.

An annotation looks like this when shown:

See the iTerm Proprietary Escape Codes documentation for more information.

message

Type: string

The message to display within the annotation.

The | character is disallowed and will be stripped.

options

Type: object

length

Type: number\ Default: The remainder of the line

Nonzero number of columns to annotate.

x

Type: number\ Default: Cursor position

Starting X coordinate.

Must be used with y and length.

y

Type: number\ Default: Cursor position

Starting Y coordinate.

Must be used with x and length.

isHidden

Type: boolean\ Default: false

Create a "hidden" annotation.

Annotations created this way can be shown using the "Show Annotations" iTerm command.

  • ansi-styles - ANSI escape codes for styling strings in the terminal

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