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-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <regex>
10
11 // template <class traits, class charT, class ST, class SA>
12 // basic_string<charT, ST, SA>
13 // regex_replace(const basic_string<charT, ST, SA>& s,
14 // const basic_regex<charT, traits>& e, const charT* fmt,
15 // regex_constants::match_flag_type flags =
16 // regex_constants::match_default);
17
18 #include <regex>
19 #include <cassert>
20 #include "test_macros.h"
21
main(int,char **)22 int main(int, char**)
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 return 0;
74 }
75