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 charT, class traits = regex_traits<charT>> class basic_regex;
13
14 // basic_regex(const charT* p, flag_type f = regex_constants::ECMAScript);
15
16 #include <regex>
17 #include <cassert>
18 #include "test_macros.h"
19
20 template <class CharT>
21 void
test(const CharT * p,std::regex_constants::syntax_option_type f,unsigned mc)22 test(const CharT* p, std::regex_constants::syntax_option_type f, unsigned mc)
23 {
24 std::basic_regex<CharT> r(p, f);
25 assert(r.flags() == f);
26 assert(r.mark_count() == mc);
27 }
28
main()29 int main()
30 {
31 test("\\(a\\)", std::regex_constants::basic, 1);
32 test("\\(a[bc]\\)", std::regex_constants::basic, 1);
33 test("\\(a\\([bc]\\)\\)", std::regex_constants::basic, 2);
34 test("(a([bc]))", std::regex_constants::basic, 0);
35
36 test("\\(a\\)", std::regex_constants::extended, 0);
37 test("\\(a[bc]\\)", std::regex_constants::extended, 0);
38 test("\\(a\\([bc]\\)\\)", std::regex_constants::extended, 0);
39 test("(a([bc]))", std::regex_constants::extended, 2);
40
41 test("\\(a\\)", std::regex_constants::ECMAScript, 0);
42 test("\\(a[bc]\\)", std::regex_constants::ECMAScript, 0);
43 test("\\(a\\([bc]\\)\\)", std::regex_constants::ECMAScript, 0);
44 test("(a([bc]))", std::regex_constants::ECMAScript, 2);
45
46 test("\\(a\\)", std::regex_constants::awk, 0);
47 test("\\(a[bc]\\)", std::regex_constants::awk, 0);
48 test("\\(a\\([bc]\\)\\)", std::regex_constants::awk, 0);
49 test("(a([bc]))", std::regex_constants::awk, 2);
50
51 test("\\(a\\)", std::regex_constants::grep, 1);
52 test("\\(a[bc]\\)", std::regex_constants::grep, 1);
53 test("\\(a\\([bc]\\)\\)", std::regex_constants::grep, 2);
54 test("(a([bc]))", std::regex_constants::grep, 0);
55
56 test("\\(a\\)", std::regex_constants::egrep, 0);
57 test("\\(a[bc]\\)", std::regex_constants::egrep, 0);
58 test("\\(a\\([bc]\\)\\)", std::regex_constants::egrep, 0);
59 test("(a([bc]))", std::regex_constants::egrep, 2);
60 }
61