rvx/dist/es/dom/internals/html-escape.js

A signal based rendering library

const HTML_ESCAPE_REGEX = /["'<>&]/;
export function htmlEscapeAppendTo(html, data) {
    const firstMatch = HTML_ESCAPE_REGEX.exec(data);
    if (firstMatch === null) {
        return html + data;
    }
    let last = 0;
    let index = firstMatch.index;
    let escape;
    chars: while (index < data.length) {
        switch (data.charCodeAt(index)) {
            case 34:
                escape = "&#34;";
                break;
            case 38:
                escape = "&amp;";
                break;
            case 39:
                escape = "&#39;";
                break;
            case 60:
                escape = "&lt;";
                break;
            case 62:
                escape = "&gt;";
                break;
            default:
                index++;
                continue chars;
        }
        if (index !== last) {
            html += data.slice(last, index);
        }
        html += escape;
        index++;
        last = index;
    }
    if (index !== last) {
        html += data.slice(last, index);
    }
    return html;
}
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