/** @typedef {import("./get-preferred-quote.js").Quote} Quote */ /** * @param {string} rawText * @param {Quote} enclosingQuote * @param {boolean=} unescapeUnnecessaryEscapes * @returns {string} */ function makeString(rawText, enclosingQuote, unescapeUnnecessaryEscapes) { const otherQuote = enclosingQuote === '"' ? "'" : '"'; // Matches _any_ escape and unescaped quotes (both single and double). const regex = /\\(.)|(["'])/gs; // Escape and unescape single and double quotes as needed to be able to // enclose `rawText` with `enclosingQuote`. const raw = rawText.replaceAll(regex, (match, escaped, quote) => { // If we matched an escape, and the escaped character is a quote of the // other type than we intend to enclose the string with, there's no need for // it to be escaped, so return it _without_ the backslash. if (escaped === otherQuote) { return escaped; } // If we matched an unescaped quote and it is of the _same_ type as we // intend to enclose the string with, it must be escaped, so return it with // a backslash. if (quote === enclosingQuote) { return "\\" + quote; } if (quote) { return quote; } // Unescape any unnecessarily escaped character. // Adapted from https://github.com/eslint/eslint/blob/de0b4ad7bd820ade41b1f606008bea68683dc11a/lib/rules/no-useless-escape.js#L27 return unescapeUnnecessaryEscapes && /^[^\n\r"'0-7\\bfnrt-vx\u2028\u2029]$/.test(escaped) ? escaped : "\\" + escaped; }); return enclosingQuote + raw + enclosingQuote; } export default makeString;