public static boolean uri_reference(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "uri_reference")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, URI_REFERENCE, "<uri reference>");
    r = uri(b, l + 1);
    if (!r) r = relative_ref(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean uri_reference(PsiBuilder b, int l)