64 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// template <class ST, class SA>14// basic_regex(const basic_string<charT, ST, SA>& s,15// flag_type f = regex_constants::ECMAScript);16 17#include <regex>18#include <cassert>19#include "test_macros.h"20 21template <class String>22void23test(const String& p, std::regex_constants::syntax_option_type f, unsigned mc)24{25 std::basic_regex<typename String::value_type> r(p, f);26 assert(r.flags() == f);27 assert(r.mark_count() == mc);28}29 30int main(int, char**)31{32 test(std::string("\\(a\\)"), std::regex_constants::basic, 1);33 test(std::string("\\(a[bc]\\)"), std::regex_constants::basic, 1);34 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::basic, 2);35 test(std::string("(a([bc]))"), std::regex_constants::basic, 0);36 37 test(std::string("\\(a\\)"), std::regex_constants::extended, 0);38 test(std::string("\\(a[bc]\\)"), std::regex_constants::extended, 0);39 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::extended, 0);40 test(std::string("(a([bc]))"), std::regex_constants::extended, 2);41 42 test(std::string("\\(a\\)"), std::regex_constants::ECMAScript, 0);43 test(std::string("\\(a[bc]\\)"), std::regex_constants::ECMAScript, 0);44 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::ECMAScript, 0);45 test(std::string("(a([bc]))"), std::regex_constants::ECMAScript, 2);46 47 test(std::string("\\(a\\)"), std::regex_constants::awk, 0);48 test(std::string("\\(a[bc]\\)"), std::regex_constants::awk, 0);49 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::awk, 0);50 test(std::string("(a([bc]))"), std::regex_constants::awk, 2);51 52 test(std::string("\\(a\\)"), std::regex_constants::grep, 1);53 test(std::string("\\(a[bc]\\)"), std::regex_constants::grep, 1);54 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::grep, 2);55 test(std::string("(a([bc]))"), std::regex_constants::grep, 0);56 57 test(std::string("\\(a\\)"), std::regex_constants::egrep, 0);58 test(std::string("\\(a[bc]\\)"), std::regex_constants::egrep, 0);59 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::egrep, 0);60 test(std::string("(a([bc]))"), std::regex_constants::egrep, 2);61 62 return 0;63}64