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 // class match_results<BidirectionalIterator, Allocator>
12
13 // string_type
14 // format(const char_type* fmt,
15 // regex_constants::match_flag_type flags = regex_constants::format_default) const;
16
17 #include <regex>
18 #include <cassert>
19 #include "test_macros.h"
20
main(int,char **)21 int main(int, char**)
22 {
23 {
24 std::match_results<const char*> m;
25 const char s[] = "abcdefghijk";
26 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
27
28 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
29 std::string out = m.format(fmt);
30 assert(out == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
31 }
32 {
33 std::match_results<const char*> m;
34 const char s[] = "abcdefghijk";
35 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
36
37 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
38 std::string out = m.format(fmt, std::regex_constants::format_sed);
39 assert(out == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
40 }
41 {
42 std::match_results<const char*> m;
43 const char s[] = "abcdefghijk";
44 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
45
46 const char fmt[] = "match: &, m[1]: \\1, m[2]: \\2";
47 std::string out = m.format(fmt, std::regex_constants::format_sed);
48 assert(out == "match: cdefghi, m[1]: efg, m[2]: e");
49 }
50
51 {
52 std::match_results<const wchar_t*> m;
53 const wchar_t s[] = L"abcdefghijk";
54 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
55
56 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
57 std::wstring out = m.format(fmt);
58 assert(out == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
59 }
60 {
61 std::match_results<const wchar_t*> m;
62 const wchar_t s[] = L"abcdefghijk";
63 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
64
65 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
66 std::wstring out = m.format(fmt, std::regex_constants::format_sed);
67 assert(out == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
68 }
69 {
70 std::match_results<const wchar_t*> m;
71 const wchar_t s[] = L"abcdefghijk";
72 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
73
74 const wchar_t fmt[] = L"match: &, m[1]: \\1, m[2]: \\2";
75 std::wstring out = m.format(fmt, std::regex_constants::format_sed);
76 assert(out == L"match: cdefghi, m[1]: efg, m[2]: e");
77 }
78
79 return 0;
80 }
81