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