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