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 BidirectionalIterator, class Allocator, class charT, class traits>
13 // bool
14 // regex_search(BidirectionalIterator first, BidirectionalIterator last,
15 // match_results<BidirectionalIterator, Allocator>& m,
16 // const basic_regex<charT, traits>& e,
17 // regex_constants::match_flag_type flags = regex_constants::match_default);
18
19 #include <regex>
20 #include <cassert>
21
22 #include "test_macros.h"
23 #include "test_iterators.h"
24
LLVMFuzzerTestOneInput(const char * data)25 extern "C" void LLVMFuzzerTestOneInput(const char *data)
26 {
27 #ifndef TEST_HAS_NO_EXCEPTIONS
28 size_t size = strlen(data);
29 if (size > 0)
30 {
31 try
32 {
33 std::regex::flag_type flag = std::regex_constants::grep;
34 std::string s((const char *)data, size);
35 std::regex re(s, flag);
36 TEST_IGNORE_NODISCARD std::regex_match(s, re);
37 }
38 catch (std::regex_error &) {}
39 }
40 #else
41 ((void)data);
42 #endif
43 }
44
45
fuzz_tests()46 void fuzz_tests() // patterns that the fuzzer has found
47 {
48 // Raw string literals are a C++11 feature.
49 #if TEST_STD_VER >= 11
50 LLVMFuzzerTestOneInput(R"XX(Õ)_%()()((\8'_%()_%()_%()_%(()_%()_%()_%(.t;)()¥f()_%()(.)_%;)()!¥f(((()()XX");
51 #endif
52 }
53
main()54 int main()
55 {
56 {
57 std::cmatch m;
58 const char s[] = "tournament";
59 assert(std::regex_search(s, m, std::regex("tour\nto\ntournament",
60 std::regex_constants::grep)));
61 assert(m.size() == 1);
62 assert(!m.prefix().matched);
63 assert(m.prefix().first == s);
64 assert(m.prefix().second == m[0].first);
65 assert(!m.suffix().matched);
66 assert(m.suffix().first == m[0].second);
67 assert(m.suffix().second == s + std::char_traits<char>::length(s));
68 assert(m.length(0) == 10);
69 assert(m.position(0) == 0);
70 assert(m.str(0) == "tournament");
71 }
72 {
73 std::cmatch m;
74 const char s[] = "ment";
75 assert(std::regex_search(s, m, std::regex("tour\n\ntournament",
76 std::regex_constants::grep)));
77 assert(m.size() == 1);
78 assert(!m.prefix().matched);
79 assert(m.prefix().first == s);
80 assert(m.prefix().second == m[0].first);
81 assert(m.suffix().matched);
82 assert(m.suffix().first == m[0].second);
83 assert(m.suffix().second == s + std::char_traits<char>::length(s));
84 assert(m.length(0) == 0);
85 assert(m.position(0) == 0);
86 assert(m.str(0) == "");
87 }
88 fuzz_tests();
89 }
90