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, size_t len, flag_type f);
15
16#include <regex>
17#include <cassert>
18
19template <class CharT>
20void
21test(const CharT* p, std::size_t len, std::regex_constants::syntax_option_type f,
22     unsigned mc)
23{
24    std::basic_regex<CharT> r(p, len, f);
25    assert(r.flags() == f);
26    assert(r.mark_count() == mc);
27}
28
29int main()
30{
31    test("\\(a\\)", 5, std::regex_constants::basic, 1);
32    test("\\(a[bc]\\)", 9, std::regex_constants::basic, 1);
33    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::basic, 2);
34    test("(a([bc]))", 9, std::regex_constants::basic, 0);
35
36    test("\\(a\\)", 5, std::regex_constants::extended, 0);
37    test("\\(a[bc]\\)", 9, std::regex_constants::extended, 0);
38    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::extended, 0);
39    test("(a([bc]))", 9, std::regex_constants::extended, 2);
40
41    test("\\(a\\)", 5, std::regex_constants::ECMAScript, 0);
42    test("\\(a[bc]\\)", 9, std::regex_constants::ECMAScript, 0);
43    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::ECMAScript, 0);
44    test("(a([bc]))", 9, std::regex_constants::ECMAScript, 2);
45
46    test("\\(a\\)", 5, std::regex_constants::awk, 0);
47    test("\\(a[bc]\\)", 9, std::regex_constants::awk, 0);
48    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::awk, 0);
49    test("(a([bc]))", 9, std::regex_constants::awk, 2);
50
51    test("\\(a\\)", 5, std::regex_constants::grep, 1);
52    test("\\(a[bc]\\)", 9, std::regex_constants::grep, 1);
53    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::grep, 2);
54    test("(a([bc]))", 9, std::regex_constants::grep, 0);
55
56    test("\\(a\\)", 5, std::regex_constants::egrep, 0);
57    test("\\(a[bc]\\)", 9, std::regex_constants::egrep, 0);
58    test("\\(a\\([bc]\\)\\)", 13, std::regex_constants::egrep, 0);
59    test("(a([bc]))", 9, std::regex_constants::egrep, 2);
60}
61