@types/node/tty.d.ts

/**
 * The `tty` module provides the `tty.ReadStream` and `tty.WriteStream` classes.
 * In most cases, it will not be necessary or possible to use this module directly.
 * However, it can be accessed using:
 *
 * ```js
 * const tty = require('tty');
 * ```
 *
 * When Node.js detects that it is being run with a text terminal ("TTY")
 * attached, `process.stdin` will, by default, be initialized as an instance of`tty.ReadStream` and both `process.stdout` and `process.stderr` will, by
 * default, be instances of `tty.WriteStream`. The preferred method of determining
 * whether Node.js is being run within a TTY context is to check that the value of
 * the `process.stdout.isTTY` property is `true`:
 *
 * ```console
 * $ node -p -e "Boolean(process.stdout.isTTY)"
 * true
 * $ node -p -e "Boolean(process.stdout.isTTY)" | cat
 * false
 * ```
 *
 * In most cases, there should be little to no reason for an application to
 * manually create instances of the `tty.ReadStream` and `tty.WriteStream`classes.
 * @see [source](https://github.com/nodejs/node/blob/v17.0.0/lib/tty.js)
 */
declare module 'tty' {
    import * as net from 'node:net';
    /**
     * The `tty.isatty()` method returns `true` if the given `fd` is associated with
     * a TTY and `false` if it is not, including whenever `fd` is not a non-negative
     * integer.
     * @since v0.5.8
     * @param fd A numeric file descriptor
     */
    function isatty(fd: number): boolean;
    /**
     * Represents the readable side of a TTY. In normal circumstances `process.stdin` will be the only `tty.ReadStream` instance in a Node.js
     * process and there should be no reason to create additional instances.
     * @since v0.5.8
     */
    class ReadStream extends net.Socket {
        constructor(fd: number, options?: net.SocketConstructorOpts);
        /**
         * A `boolean` that is `true` if the TTY is currently configured to operate as a
         * raw device. Defaults to `false`.
         * @since v0.7.7
         */
        isRaw: boolean;
        /**
         * Allows configuration of `tty.ReadStream` so that it operates as a raw device.
         *
         * When in raw mode, input is always available character-by-character, not
         * including modifiers. Additionally, all special processing of characters by the
         * terminal is disabled, including echoing input characters.Ctrl+C will no longer cause a `SIGINT` when in this mode.
         * @since v0.7.7
         * @param mode If `true`, configures the `tty.ReadStream` to operate as a raw device. If `false`, configures the `tty.ReadStream` to operate in its default mode. The `readStream.isRaw`
         * property will be set to the resulting mode.
         * @return The read stream instance.
         */
        setRawMode(mode: boolean): this;
        /**
         * A `boolean` that is always `true` for `tty.ReadStream` instances.
         * @since v0.5.8
         */
        isTTY: boolean;
    }
    /**
     * -1 - to the left from cursor
     *  0 - the entire line
     *  1 - to the right from cursor
     */
    type Direction = -1 | 0 | 1;
    /**
     * Represents the writable side of a TTY. In normal circumstances,`process.stdout` and `process.stderr` will be the only`tty.WriteStream` instances created for a Node.js process and there
     * should be no reason to create additional instances.
     * @since v0.5.8
     */
    class WriteStream extends net.Socket {
        constructor(fd: number);
        addListener(event: string, listener: (...args: any[]) => void): this;
        addListener(event: 'resize', listener: () => void): this;
        emit(event: string | symbol, ...args: any[]): boolean;
        emit(event: 'resize'): boolean;
        on(event: string, listener: (...args: any[]) => void): this;
        on(event: 'resize', listener: () => void): this;
        once(event: string, listener: (...args: any[]) => void): this;
        once(event: 'resize', listener: () => void): this;
        prependListener(event: string, listener: (...args: any[]) => void): this;
        prependListener(event: 'resize', listener: () => void): this;
        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
        prependOnceListener(event: 'resize', listener: () => void): this;
        /**
         * `writeStream.clearLine()` clears the current line of this `WriteStream` in a
         * direction identified by `dir`.
         * @since v0.7.7
         * @param callback Invoked once the operation completes.
         * @return `false` if the stream wishes for the calling code to wait for the `'drain'` event to be emitted before continuing to write additional data; otherwise `true`.
         */
        clearLine(dir: Direction, callback?: () => void): boolean;
        /**
         * `writeStream.clearScreenDown()` clears this `WriteStream` from the current
         * cursor down.
         * @since v0.7.7
         * @param callback Invoked once the operation completes.
         * @return `false` if the stream wishes for the calling code to wait for the `'drain'` event to be emitted before continuing to write additional data; otherwise `true`.
         */
        clearScreenDown(callback?: () => void): boolean;
        /**
         * `writeStream.cursorTo()` moves this `WriteStream`'s cursor to the specified
         * position.
         * @since v0.7.7
         * @param callback Invoked once the operation completes.
         * @return `false` if the stream wishes for the calling code to wait for the `'drain'` event to be emitted before continuing to write additional data; otherwise `true`.
         */
        cursorTo(x: number, y?: number, callback?: () => void): boolean;
        cursorTo(x: number, callback: () => void): boolean;
        /**
         * `writeStream.moveCursor()` moves this `WriteStream`'s cursor _relative_ to its
         * current position.
         * @since v0.7.7
         * @param callback Invoked once the operation completes.
         * @return `false` if the stream wishes for the calling code to wait for the `'drain'` event to be emitted before continuing to write additional data; otherwise `true`.
         */
        moveCursor(dx: number, dy: number, callback?: () => void): boolean;
        /**
         * Returns:
         *
         * * `1` for 2,
         * * `4` for 16,
         * * `8` for 256,
         * * `24` for 16,777,216 colors supported.
         *
         * Use this to determine what colors the terminal supports. Due to the nature of
         * colors in terminals it is possible to either have false positives or false
         * negatives. It depends on process information and the environment variables that
         * may lie about what terminal is used.
         * It is possible to pass in an `env` object to simulate the usage of a specific
         * terminal. This can be useful to check how specific environment settings behave.
         *
         * To enforce a specific color support, use one of the below environment settings.
         *
         * * 2 colors: `FORCE_COLOR = 0` (Disables colors)
         * * 16 colors: `FORCE_COLOR = 1`
         * * 256 colors: `FORCE_COLOR = 2`
         * * 16,777,216 colors: `FORCE_COLOR = 3`
         *
         * Disabling color support is also possible by using the `NO_COLOR` and`NODE_DISABLE_COLORS` environment variables.
         * @since v9.9.0
         * @param [env=process.env] An object containing the environment variables to check. This enables simulating the usage of a specific terminal.
         */
        getColorDepth(env?: object): number;
        /**
         * Returns `true` if the `writeStream` supports at least as many colors as provided
         * in `count`. Minimum support is 2 (black and white).
         *
         * This has the same false positives and negatives as described in `writeStream.getColorDepth()`.
         *
         * ```js
         * process.stdout.hasColors();
         * // Returns true or false depending on if `stdout` supports at least 16 colors.
         * process.stdout.hasColors(256);
         * // Returns true or false depending on if `stdout` supports at least 256 colors.
         * process.stdout.hasColors({ TMUX: '1' });
         * // Returns true.
         * process.stdout.hasColors(2 ** 24, { TMUX: '1' });
         * // Returns false (the environment setting pretends to support 2 ** 8 colors).
         * ```
         * @since v11.13.0, v10.16.0
         * @param [count=16] The number of colors that are requested (minimum 2).
         * @param [env=process.env] An object containing the environment variables to check. This enables simulating the usage of a specific terminal.
         */
        hasColors(count?: number): boolean;
        hasColors(env?: object): boolean;
        hasColors(count: number, env?: object): boolean;
        /**
         * `writeStream.getWindowSize()` returns the size of the TTY
         * corresponding to this `WriteStream`. The array is of the type`[numColumns, numRows]` where `numColumns` and `numRows` represent the number
         * of columns and rows in the corresponding TTY.
         * @since v0.7.7
         */
        getWindowSize(): [number, number];
        /**
         * A `number` specifying the number of columns the TTY currently has. This property
         * is updated whenever the `'resize'` event is emitted.
         * @since v0.7.7
         */
        columns: number;
        /**
         * A `number` specifying the number of rows the TTY currently has. This property
         * is updated whenever the `'resize'` event is emitted.
         * @since v0.7.7
         */
        rows: number;
        /**
         * A `boolean` that is always `true`.
         * @since v0.5.8
         */
        isTTY: boolean;
    }
}
declare module 'node:tty' {
    export * from 'tty';
}