62 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <regex>10 11// template <class charT, class traits = regex_traits<charT>> class basic_regex;12 13// basic_regex(const charT* p, flag_type f = regex_constants::ECMAScript);14 15#include <regex>16#include <cassert>17#include "test_macros.h"18 19template <class CharT>20void21test(const CharT* p, std::regex_constants::syntax_option_type f, unsigned mc)22{23 std::basic_regex<CharT> r(p, f);24 assert(r.flags() == f);25 assert(r.mark_count() == mc);26}27 28int main(int, char**)29{30 test("\\(a\\)", std::regex_constants::basic, 1);31 test("\\(a[bc]\\)", std::regex_constants::basic, 1);32 test("\\(a\\([bc]\\)\\)", std::regex_constants::basic, 2);33 test("(a([bc]))", std::regex_constants::basic, 0);34 35 test("\\(a\\)", std::regex_constants::extended, 0);36 test("\\(a[bc]\\)", std::regex_constants::extended, 0);37 test("\\(a\\([bc]\\)\\)", std::regex_constants::extended, 0);38 test("(a([bc]))", std::regex_constants::extended, 2);39 40 test("\\(a\\)", std::regex_constants::ECMAScript, 0);41 test("\\(a[bc]\\)", std::regex_constants::ECMAScript, 0);42 test("\\(a\\([bc]\\)\\)", std::regex_constants::ECMAScript, 0);43 test("(a([bc]))", std::regex_constants::ECMAScript, 2);44 45 test("\\(a\\)", std::regex_constants::awk, 0);46 test("\\(a[bc]\\)", std::regex_constants::awk, 0);47 test("\\(a\\([bc]\\)\\)", std::regex_constants::awk, 0);48 test("(a([bc]))", std::regex_constants::awk, 2);49 50 test("\\(a\\)", std::regex_constants::grep, 1);51 test("\\(a[bc]\\)", std::regex_constants::grep, 1);52 test("\\(a\\([bc]\\)\\)", std::regex_constants::grep, 2);53 test("(a([bc]))", std::regex_constants::grep, 0);54 55 test("\\(a\\)", std::regex_constants::egrep, 0);56 test("\\(a[bc]\\)", std::regex_constants::egrep, 0);57 test("\\(a\\([bc]\\)\\)", std::regex_constants::egrep, 0);58 test("(a([bc]))", std::regex_constants::egrep, 2);59 60 return 0;61}62