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 #include "test_macros.h" 23 24 int main() 25 { 26 { 27 std::regex phone_numbers("\\d{3}-\\d{4}"); 28 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 29 std::string r = std::regex_replace(phone_book, phone_numbers, 30 "123-$&"); 31 assert(r == "123-555-1234, 123-555-2345, 123-555-3456"); 32 } 33 { 34 std::regex phone_numbers("\\d{3}-\\d{4}"); 35 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 36 std::string r = std::regex_replace(phone_book, phone_numbers, 37 "123-$&", 38 std::regex_constants::format_sed); 39 assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456"); 40 } 41 { 42 std::regex phone_numbers("\\d{3}-\\d{4}"); 43 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 44 std::string r = std::regex_replace(phone_book, phone_numbers, 45 "123-&", 46 std::regex_constants::format_sed); 47 assert(r == "123-555-1234, 123-555-2345, 123-555-3456"); 48 } 49 { 50 std::regex phone_numbers("\\d{3}-\\d{4}"); 51 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 52 std::string r = std::regex_replace(phone_book, phone_numbers, 53 "123-$&", 54 std::regex_constants::format_no_copy); 55 assert(r == "123-555-1234123-555-2345123-555-3456"); 56 } 57 { 58 std::regex phone_numbers("\\d{3}-\\d{4}"); 59 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 60 std::string r = std::regex_replace(phone_book, phone_numbers, 61 "123-$&", 62 std::regex_constants::format_first_only); 63 assert(r == "123-555-1234, 555-2345, 555-3456"); 64 } 65 { 66 std::regex phone_numbers("\\d{3}-\\d{4}"); 67 const char phone_book[] = "555-1234, 555-2345, 555-3456"; 68 std::string r = std::regex_replace(phone_book, phone_numbers, 69 "123-$&", 70 std::regex_constants::format_first_only | 71 std::regex_constants::format_no_copy); 72 assert(r == "123-555-1234"); 73 } 74 } 75
