function endOfMode(mode, match, matchPlusRemainder) {
        let matched = startsWith(mode.endRe, matchPlusRemainder);

        if (matched) {
          if (mode["on:end"]) {
            const resp = new Response(mode);
            mode["on:end"](match, resp);
            if (resp.isMatchIgnored) matched = false;
          }

          if (matched) {
            while (mode.endsParent && mode.parent) {
              mode = mode.parent;
            }
            return mode;
          }
        }
        // even if on:end fires an `ignore` it's still possible
        // that we might trigger the end node because of a parent mode
        if (mode.endsWithParent) {
          return endOfMode(mode.parent, match, matchPlusRemainder);
        }
      }
@param {CompiledMode } mode - the mode to potentially end
@param {RegExpMatchArray} match - the latest match
@param {string} matchPlusRemainder - match plus remainder of content
@returns {CompiledMode | void} - the next mode, or if void continue on in current mode