const ATTR_REGEX = /[&"<]/g;
const CONTENT_REGEX = /[&<]/g;
function escape_html(value, is_attr) {
  const str = String(value ?? "");
  const pattern = is_attr ? ATTR_REGEX : CONTENT_REGEX;
  pattern.lastIndex = 0;
  let escaped = "";
  let last = 0;
  while (pattern.test(str)) {
    const i = pattern.lastIndex - 1;
    const ch = str[i];
    escaped += str.substring(last, i) + (ch === "&" ? "&amp;" : ch === '"' ? "&quot;" : "&lt;");
    last = i + 1;
  }
  return escaped + str.substring(last);
}
export {
  escape_html as e
};