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, class FST, class FSA>>
12 // basic_string<charT, ST, SA>
13 // regex_replace(const basic_string<charT, ST, SA>& s,
14 // const basic_regex<charT, traits>& e,
15 // const basic_string<charT, FST, FSA>& fmt,
16 // regex_constants::match_flag_type flags =
17 // regex_constants::match_default);
18
19 #include <regex>
20 #include <cassert>
21 #include "test_macros.h"
22
main(int,char **)23 int main(int, char**)
24 {
25 {
26 std::regex phone_numbers("\\d{3}-\\d{4}");
27 std::string phone_book("555-1234, 555-2345, 555-3456");
28 std::string r = std::regex_replace(phone_book, phone_numbers,
29 std::string("123-$&"));
30 assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
31 }
32 {
33 std::regex phone_numbers("\\d{3}-\\d{4}");
34 std::string phone_book("555-1234, 555-2345, 555-3456");
35 std::string r = std::regex_replace(phone_book, phone_numbers,
36 std::string("123-$&"),
37 std::regex_constants::format_sed);
38 assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456");
39 }
40 {
41 std::regex phone_numbers("\\d{3}-\\d{4}");
42 std::string phone_book("555-1234, 555-2345, 555-3456");
43 std::string r = std::regex_replace(phone_book, phone_numbers,
44 std::string("123-&"),
45 std::regex_constants::format_sed);
46 assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
47 }
48 {
49 std::regex phone_numbers("\\d{3}-\\d{4}");
50 std::string phone_book("555-1234, 555-2345, 555-3456");
51 std::string r = std::regex_replace(phone_book, phone_numbers,
52 std::string("123-$&"),
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 std::string phone_book("555-1234, 555-2345, 555-3456");
59 std::string r = std::regex_replace(phone_book, phone_numbers,
60 std::string("123-$&"),
61 std::regex_constants::format_first_only);
62 assert(r == "123-555-1234, 555-2345, 555-3456");
63 }
64 {
65 std::regex phone_numbers("\\d{3}-\\d{4}");
66 std::string phone_book("555-1234, 555-2345, 555-3456");
67 std::string r = std::regex_replace(phone_book, phone_numbers,
68 std::string("123-$&"),
69 std::regex_constants::format_first_only |
70 std::regex_constants::format_no_copy);
71 assert(r == "123-555-1234");
72 }
73
74 return 0;
75 }
76