1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <regex> 11 12// template <class charT, class traits = regex_traits<charT>> class basic_regex; 13 14// template <class ST, class SA> 15// basic_regex(const basic_string<charT, ST, SA>& s, 16// flag_type f = regex_constants::ECMAScript); 17 18#include <regex> 19#include <cassert> 20 21template <class String> 22void 23test(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() 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