import { removeQueryString } from "@astrojs/internal-helpers/path";
const DATA_PREFIX = "data:";
function inferSourceFormat(src) {
  if (src.startsWith(DATA_PREFIX)) {
    const mime = src.slice(DATA_PREFIX.length, src.indexOf(";"));
    if (mime === "image/svg+xml") return "svg";
    const sub = mime.split("/")[1];
    return sub || void 0;
  }
  try {
    const cleanSrc = removeQueryString(src).split("#")[0];
    const lastDot = cleanSrc.lastIndexOf(".");
    if (lastDot === -1) return void 0;
    return cleanSrc.slice(lastDot + 1).toLowerCase();
  } catch {
    return void 0;
  }
}
export {
  inferSourceFormat
};