il_flg.pass.cpp revision 1d4a1edbc7e4461b59239e1b8297e9dd395a6322 
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(initializer_list<charT> il,
15//             flag_type f = regex_constants::ECMAScript);
16
17#include <regex>
18#include <cassert>
19
20#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
21
22void
23test(std::initializer_list<char> il, std::regex_constants::syntax_option_type f, unsigned mc)
24{
25    std::basic_regex<char> r(il, f);
26    assert(r.flags() == f);
27    assert(r.mark_count() == mc);
28}
29
30#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
31
32int main()
33{
34#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
70}
71