30 lines
790 B
JavaScript
30 lines
790 B
JavaScript
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import { truncate } from './helpers'
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const stringEscapeChars = new RegExp(
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"['\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5" +
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'\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]',
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'g'
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)
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const escapeCharacters = {
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'\b': '\\b',
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'\t': '\\t',
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'\n': '\\n',
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'\f': '\\f',
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'\r': '\\r',
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"'": "\\'",
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'\\': '\\\\',
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}
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const hex = 16
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const unicodeLength = 4
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function escape(char) {
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return escapeCharacters[char] || `\\u${`0000${char.charCodeAt(0).toString(hex)}`.slice(-unicodeLength)}`
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}
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export default function inspectString(string, options) {
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if (stringEscapeChars.test(string)) {
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string = string.replace(stringEscapeChars, escape)
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}
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return options.stylize(`'${truncate(string, options.truncate - 2)}'`, 'string')
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}
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