2 var { fromEvent } = require('rxjs');
3 var { filter, map, share, takeUntil } = require('rxjs/operators');
5 function normalizeKeypressEvents(value, key) {
6 return { value: value, key: key || {} };
9 module.exports = function (rl) {
10 var keypress = fromEvent(rl.input, 'keypress', normalizeKeypressEvents)
11 .pipe(takeUntil(fromEvent(rl, 'close')))
12 // Ignore `enter` key. On the readline, we only care about the `line` event.
13 .pipe(filter(({ key }) => key.name !== 'enter' && key.name !== 'return'));
16 line: fromEvent(rl, 'line'),
19 normalizedUpKey: keypress.pipe(
22 key.name === 'up' || key.name === 'k' || (key.name === 'p' && key.ctrl)
27 normalizedDownKey: keypress.pipe(
30 key.name === 'down' || key.name === 'j' || (key.name === 'n' && key.ctrl)
35 numberKey: keypress.pipe(
36 filter((e) => e.value && '123456789'.indexOf(e.value) >= 0),
37 map((e) => Number(e.value)),
41 spaceKey: keypress.pipe(
42 filter(({ key }) => key && key.name === 'space'),
46 filter(({ key }) => key && key.name === 'a'),
50 filter(({ key }) => key && key.name === 'i'),