/** * The `readline/promise` module provides an API for reading lines of input from a Readable stream one line at a time. * * @see [source](https://github.com/nodejs/node/blob/v18.0.0/lib/readline/promises.js) * @since v17.0.0 */ declare module 'readline/promises' { import { Interface as _Interface, ReadLineOptions, Completer, AsyncCompleter, Direction } from 'node:readline'; import { Abortable } from 'node:events'; class Interface extends _Interface { /** * The rl.question() method displays the query by writing it to the output, waits for user input to be provided on input, * then invokes the callback function passing the provided input as the first argument. * * When called, rl.question() will resume the input stream if it has been paused. * * If the readlinePromises.Interface was created with output set to null or undefined the query is not written. * * If the question is called after rl.close(), it returns a rejected promise. * * Example usage: * * ```js * const answer = await rl.question('What is your favorite food? '); * console.log(`Oh, so your favorite food is ${answer}`); * ``` * * Using an AbortSignal to cancel a question. * * ```js * const signal = AbortSignal.timeout(10_000); * * signal.addEventListener('abort', () => { * console.log('The food question timed out'); * }, { once: true }); * * const answer = await rl.question('What is your favorite food? ', { signal }); * console.log(`Oh, so your favorite food is ${answer}`); * ``` * * @since v17.0.0 * @param query A statement or query to write to output, prepended to the prompt. */ question(query: string): Promise; question(query: string, options: Abortable): Promise; } class Readline { /** * @param stream A TTY stream. */ constructor(stream: NodeJS.WritableStream, options?: { autoCommit?: boolean }); /** * The `rl.clearLine()` method adds to the internal list of pending action an action that clears current line of the associated `stream` in a specified direction identified by `dir`. * Call `rl.commit()` to see the effect of this method, unless `autoCommit: true` was passed to the constructor. */ clearLine(dir: Direction): this; /** * The `rl.clearScreenDown()` method adds to the internal list of pending action an action that clears the associated `stream` from the current position of the cursor down. * Call `rl.commit()` to see the effect of this method, unless `autoCommit: true` was passed to the constructor. */ clearScreenDown(): this; /** * The `rl.commit()` method sends all the pending actions to the associated `stream` and clears the internal list of pending actions. */ commit(): Promise; /** * The `rl.cursorTo()` method adds to the internal list of pending action an action that moves cursor to the specified position in the associated `stream`. * Call `rl.commit()` to see the effect of this method, unless `autoCommit: true` was passed to the constructor. */ cursorTo(x: number, y?: number): this; /** * The `rl.moveCursor()` method adds to the internal list of pending action an action that moves the cursor relative to its current position in the associated `stream`. * Call `rl.commit()` to see the effect of this method, unless autoCommit: true was passed to the constructor. */ moveCursor(dx: number, dy: number): this; /** * The `rl.rollback()` method clears the internal list of pending actions without sending it to the associated `stream`. */ rollback(): this; } /** * The `readlinePromises.createInterface()` method creates a new `readlinePromises.Interface` instance. * * ```js * const readlinePromises = require('node:readline/promises'); * const rl = readlinePromises.createInterface({ * input: process.stdin, * output: process.stdout * }); * ``` * * Once the `readlinePromises.Interface` instance is created, the most common case is to listen for the `'line'` event: * * ```js * rl.on('line', (line) => { * console.log(`Received: ${line}`); * }); * ``` * * If `terminal` is `true` for this instance then the `output` stream will get the best compatibility if it defines an `output.columns` property, * and emits a `'resize'` event on the `output`, if or when the columns ever change (`process.stdout` does this automatically when it is a TTY). * * ## Use of the `completer` function * * The `completer` function takes the current line entered by the user as an argument, and returns an `Array` with 2 entries: * * - An Array with matching entries for the completion. * - The substring that was used for the matching. * * For instance: `[[substr1, substr2, ...], originalsubstring]`. * * ```js * function completer(line) { * const completions = '.help .error .exit .quit .q'.split(' '); * const hits = completions.filter((c) => c.startsWith(line)); * // Show all completions if none found * return [hits.length ? hits : completions, line]; * } * ``` * * The `completer` function can also returns a `Promise`, or be asynchronous: * * ```js * async function completer(linePartial) { * await someAsyncWork(); * return [['123'], linePartial]; * } * ``` */ function createInterface( input: NodeJS.ReadableStream, output?: NodeJS.WritableStream, completer?: Completer | AsyncCompleter, terminal?: boolean, ): Interface; function createInterface(options: ReadLineOptions): Interface; } declare module 'node:readline/promises' { export * from 'readline/promises'; }