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 traits, class charT> 13 // basic_string<charT> 14 // regex_replace(const charT* s, 15 // const basic_regex<charT, traits>& e, 16 // const charT* fmt, 17 // regex_constants::match_flag_type flags = 18 // regex_constants::match_default); 19 20 #include <regex> 21 #include <cassert> 22 23 int main() 24 { 25 { 26 std::regex phone_numbers("\\d{3}-\\d{4}"); 27 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 28 std::string r = std::regex_replace(phone_book, phone_numbers, 29 "123-$&"); 30 assert(r == "123-555-1234, 123-555-2345, 123-555-3456"); 31 } 32 { 33 std::regex phone_numbers("\\d{3}-\\d{4}"); 34 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 35 std::string r = std::regex_replace(phone_book, phone_numbers, 36 "123-$&", 37 std::regex_constants::format_sed); 38 assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456"); 39 } 40 { 41 std::regex phone_numbers("\\d{3}-\\d{4}"); 42 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 43 std::string r = std::regex_replace(phone_book, phone_numbers, 44 "123-&", 45 std::regex_constants::format_sed); 46 assert(r == "123-555-1234, 123-555-2345, 123-555-3456"); 47 } 48 { 49 std::regex phone_numbers("\\d{3}-\\d{4}"); 50 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 51 std::string r = std::regex_replace(phone_book, phone_numbers, 52 "123-$&", 53 std::regex_constants::format_no_copy); 54 assert(r == "123-555-1234123-555-2345123-555-3456"); 55 } 56 { 57 std::regex phone_numbers("\\d{3}-\\d{4}"); 58 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 59 std::string r = std::regex_replace(phone_book, phone_numbers, 60 "123-$&", 61 std::regex_constants::format_first_only); 62 assert(r == "123-555-1234, 555-2345, 555-3456"); 63 } 64 { 65 std::regex phone_numbers("\\d{3}-\\d{4}"); 66 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 67 std::string r = std::regex_replace(phone_book, phone_numbers, 68 "123-$&", 69 std::regex_constants::format_first_only | 70 std::regex_constants::format_no_copy); 71 assert(r == "123-555-1234"); 72 } 73 } 74
