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 #include "test_macros.h"
23
main()24 int main()
25 {
26 {
27 std::match_results<const char*> m;
28 const char s[] = "abcdefghijk";
29 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
30
31 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
32 std::string out = m.format(fmt);
33 assert(out == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
34 }
35 {
36 std::match_results<const char*> m;
37 const char s[] = "abcdefghijk";
38 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
39
40 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
41 std::string out = m.format(fmt, std::regex_constants::format_sed);
42 assert(out == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
43 }
44 {
45 std::match_results<const char*> m;
46 const char s[] = "abcdefghijk";
47 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
48
49 const char fmt[] = "match: &, m[1]: \\1, m[2]: \\2";
50 std::string out = m.format(fmt, std::regex_constants::format_sed);
51 assert(out == "match: cdefghi, m[1]: efg, m[2]: e");
52 }
53
54 {
55 std::match_results<const wchar_t*> m;
56 const wchar_t s[] = L"abcdefghijk";
57 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
58
59 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
60 std::wstring out = m.format(fmt);
61 assert(out == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
62 }
63 {
64 std::match_results<const wchar_t*> m;
65 const wchar_t s[] = L"abcdefghijk";
66 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
67
68 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";
69 std::wstring out = m.format(fmt, std::regex_constants::format_sed);
70 assert(out == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
71 }
72 {
73 std::match_results<const wchar_t*> m;
74 const wchar_t s[] = L"abcdefghijk";
75 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
76
77 const wchar_t fmt[] = L"match: &, m[1]: \\1, m[2]: \\2";
78 std::wstring out = m.format(fmt, std::regex_constants::format_sed);
79 assert(out == L"match: cdefghi, m[1]: efg, m[2]: e");
80 }
81 }
82