boolean (PsiBuilder b, int l) { if (!recursion_guard_(b, l, "arithmetic_expansion")) return false; if (!nextTokenIs(b, LEFT_PAREN)) return false; boolean r; Marker m = enter_section_(b); r = consumeTokens(b, 0, LEFT_PAREN, LEFT_PAREN); r = r && arithmetic_expansion_2(b, l + 1); r = r && consumeTokens(b, 0, RIGHT_PAREN, RIGHT_PAREN); exit_section_(b, m, ARITHMETIC_EXPANSION, r); return r; }