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import { createPrompt, useState, useKeypress, isEnterKey, usePrefix, makeTheme, } from '@inquirer/core'; | |
function getBooleanValue(value, defaultValue) { | |
let answer = defaultValue !== false; | |
if (/^(y|yes)/i.test(value)) | |
answer = true; | |
else if (/^(n|no)/i.test(value)) | |
answer = false; | |
return answer; | |
} | |
function boolToString(value) { | |
return value ? 'Yes' : 'No'; | |
} | |
export default createPrompt((config, done) => { | |
const { transformer = boolToString } = config; | |
const [status, setStatus] = useState('idle'); | |
const [value, setValue] = useState(''); | |
const theme = makeTheme(config.theme); | |
const prefix = usePrefix({ status, theme }); | |
useKeypress((key, rl) => { | |
if (isEnterKey(key)) { | |
const answer = getBooleanValue(value, config.default); | |
setValue(transformer(answer)); | |
setStatus('done'); | |
done(answer); | |
} | |
else if (key.name === 'tab') { | |
const answer = boolToString(!getBooleanValue(value, config.default)); | |
rl.clearLine(0); // Remove the tab character. | |
rl.write(answer); | |
setValue(answer); | |
} | |
else { | |
setValue(rl.line); | |
} | |
}); | |
let formattedValue = value; | |
let defaultValue = ''; | |
if (status === 'done') { | |
formattedValue = theme.style.answer(value); | |
} | |
else { | |
defaultValue = ` ${theme.style.defaultAnswer(config.default === false ? 'y/N' : 'Y/n')}`; | |
} | |
const message = theme.style.message(config.message, status); | |
return `${prefix} ${message}${defaultValue} ${formattedValue}`; | |
}); | |