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