static boolean compound_string(PsiBuilder b, int l, Parser _begin, Parser _content, Parser _end) {
    if (!recursion_guard_(b, l, "compound_string")) return false;
    boolean r, p;
    Marker m = enter_section_(b, l, _NONE_);
    r = _begin.parse(b, l);
    p = r; // pin = 1
    r = r && report_error_(b, compound_string_1(b, l + 1, _content));
    r = p && _end.parse(b, l) && r;
    exit_section_(b, l, m, r, p, null);
    return r || p;
  }
static boolean compound_string(PsiBuilder b, int l, Parser _begin, Parser _content, Parser _end)