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 // UNSUPPORTED: c++98, c++03
11
12 // <regex>
13
14 // template <class charT, class traits = regex_traits<charT>> class basic_regex;
15
16 // basic_regex(initializer_list<charT> il,
17 // flag_type f = regex_constants::ECMAScript);
18
19 #include <regex>
20 #include <cassert>
21 #include "test_macros.h"
22
23
24 void
test(std::initializer_list<char> il,std::regex_constants::syntax_option_type f,unsigned mc)25 test(std::initializer_list<char> il, std::regex_constants::syntax_option_type f, unsigned mc)
26 {
27 std::basic_regex<char> r(il, f);
28 assert(r.flags() == f);
29 assert(r.mark_count() == mc);
30 }
31
32
main()33 int main()
34 {
35 std::string s1("\\(a\\)");
36 std::string s2("\\(a[bc]\\)");
37 std::string s3("\\(a\\([bc]\\)\\)");
38 std::string s4("(a([bc]))");
39
40 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::basic, 1);
41 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::basic, 1);
42 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::basic, 2);
43 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::basic, 0);
44
45 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::extended, 0);
46 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::extended, 0);
47 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::extended, 0);
48 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::extended, 2);
49
50 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::ECMAScript, 0);
51 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::ECMAScript, 0);
52 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::ECMAScript, 0);
53 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::ECMAScript, 2);
54
55 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::awk, 0);
56 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::awk, 0);
57 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::awk, 0);
58 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::awk, 2);
59
60 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::grep, 1);
61 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::grep, 1);
62 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::grep, 2);
63 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::grep, 0);
64
65 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::egrep, 0);
66 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::egrep, 0);
67 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::egrep, 0);
68 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::egrep, 2);
69 }
70