boolean (PsiBuilder b, int l, Parser _item) { if (!recursion_guard_(b, l, "paren_list")) return false; if (!nextTokenIs(b, T_LPAREN)) return false; boolean r; Marker m = enter_section_(b); r = empty_parens(b, l + 1); if (!r) r = paren_list_1(b, l + 1, _item); exit_section_(b, m, null, r); return r; }