@naturalcycles/js-lib/dist/string/escape.js

Standard library for universal (browser + Node.js) javascript

/*

Vendored:
https://github.com/sindresorhus/escape-goat

(c) Sindre Sorhus

Reasons:
1. Stable enough to be included in "core" js-lib
2. ESM-only

 */
// Multiple `.replace()` calls are actually faster than using replacer functions
function _htmlEscape(s) {
    return s
        .replaceAll('&', '&') // Must happen first or else it will escape other just-escaped characters.
        .replaceAll('"', '"')
        .replaceAll("'", ''')
        .replaceAll('<', '&lt;')
        .replaceAll('>', '&gt;');
}
function _htmlUnescape(html) {
    return html
        .replaceAll('&gt;', '>')
        .replaceAll('&lt;', '<')
        .replaceAll(/&#0?39;/g, "'")
        .replaceAll('&quot;', '"')
        .replaceAll('&amp;', '&'); // Must happen last or else it will unescape other characters in the wrong order.
}
export function htmlEscape(strings, ...values) {
    if (typeof strings === 'string') {
        return _htmlEscape(strings);
    }
    let output = strings[0];
    for (const [index, value] of values.entries()) {
        output = output + _htmlEscape(String(value)) + strings[index + 1];
    }
    return output;
}
export function htmlUnescape(strings, ...values) {
    if (typeof strings === 'string') {
        return _htmlUnescape(strings);
    }
    let output = strings[0];
    for (const [index, value] of values.entries()) {
        output = output + _htmlUnescape(String(value)) + strings[index + 1];
    }
    return output;
}