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// template <class OutputIter, class ST, class SA>
14// OutputIter
15// format(OutputIter out, const basic_string<char_type, ST, SA>& fmt,
16// regex_constants::match_flag_type flags = regex_constants::format_default) const;
17
18#include <regex>
19#include <cassert>
20
21#include "test_macros.h"
22#include "test_iterators.h"
23#include "test_allocator.h"
24
25int main(int, char**)
26{
27 typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > nstr;
28 {
29 std::match_results<const char*> m;
30 const char s[] = "abcdefghijk";
31 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
32
33 char out[100] = {0};
34 nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
35 auto r = m.format(cpp17_output_iterator<char*>(out), fmt);
36 assert(base(r) == out + 58);
37 assert(std::string(out) == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
38 }
39 {
40 std::match_results<const char*> m;
41 const char s[] = "abcdefghijk";
42 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
43
44 char out[100] = {0};
45 nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
46 auto r = m.format(cpp17_output_iterator<char*>(out), fmt, std::regex_constants::format_sed);
47 assert(base(r) == out + 59);
48 assert(std::string(out) == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
49 }
50 {
51 std::match_results<const char*> m;
52 const char s[] = "abcdefghijk";
53 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
54
55 char out[100] = {0};
56 nstr fmt("match: &, m[1]: \\1, m[2]: \\2");
57 auto r = m.format(cpp17_output_iterator<char*>(out), fmt, std::regex_constants::format_sed);
58 assert(base(r) == out + 34);
59 assert(std::string(out) == "match: cdefghi, m[1]: efg, m[2]: e");
60 }
61
62#ifndef TEST_HAS_NO_WIDE_CHARACTERS
63 typedef std::basic_string<wchar_t, std::char_traits<wchar_t>, test_allocator<wchar_t> > wstr;
64 {
65 std::match_results<const wchar_t*> m;
66 const wchar_t s[] = L"abcdefghijk";
67 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
68
69 wchar_t out[100] = {0};
70 wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
71 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt);
72 assert(base(r) == out + 58);
73 assert(std::wstring(out) == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
74 }
75 {
76 std::match_results<const wchar_t*> m;
77 const wchar_t s[] = L"abcdefghijk";
78 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
79
80 wchar_t out[100] = {0};
81 wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
82 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt, std::regex_constants::format_sed);
83 assert(base(r) == out + 59);
84 assert(std::wstring(out) == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
85 }
86 {
87 std::match_results<const wchar_t*> m;
88 const wchar_t s[] = L"abcdefghijk";
89 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
90
91 wchar_t out[100] = {0};
92 wstr fmt(L"match: &, m[1]: \\1, m[2]: \\2");
93 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt, std::regex_constants::format_sed);
94 assert(base(r) == out + 34);
95 assert(std::wstring(out) == L"match: cdefghi, m[1]: efg, m[2]: e");
96 }
97#endif // TEST_HAS_NO_WIDE_CHARACTERS
98
99 return 0;
100}
101

source code of libcxx/test/std/re/re.results/re.results.form/form2.pass.cpp