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 // template <class ST, class SA>
15 // basic_regex(const basic_string<charT, ST, SA>& s,
16 // flag_type f = regex_constants::ECMAScript);
17
18 #include <regex>
19 #include <cassert>
20 #include "test_macros.h"
21
22 template <class String>
23 void
test(const String & p,std::regex_constants::syntax_option_type f,unsigned mc)24 test(const String& p, std::regex_constants::syntax_option_type f, unsigned mc)
25 {
26 std::basic_regex<typename String::value_type> r(p, f);
27 assert(r.flags() == f);
28 assert(r.mark_count() == mc);
29 }
30
main()31 int main()
32 {
33 test(std::string("\\(a\\)"), std::regex_constants::basic, 1);
34 test(std::string("\\(a[bc]\\)"), std::regex_constants::basic, 1);
35 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::basic, 2);
36 test(std::string("(a([bc]))"), std::regex_constants::basic, 0);
37
38 test(std::string("\\(a\\)"), std::regex_constants::extended, 0);
39 test(std::string("\\(a[bc]\\)"), std::regex_constants::extended, 0);
40 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::extended, 0);
41 test(std::string("(a([bc]))"), std::regex_constants::extended, 2);
42
43 test(std::string("\\(a\\)"), std::regex_constants::ECMAScript, 0);
44 test(std::string("\\(a[bc]\\)"), std::regex_constants::ECMAScript, 0);
45 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::ECMAScript, 0);
46 test(std::string("(a([bc]))"), std::regex_constants::ECMAScript, 2);
47
48 test(std::string("\\(a\\)"), std::regex_constants::awk, 0);
49 test(std::string("\\(a[bc]\\)"), std::regex_constants::awk, 0);
50 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::awk, 0);
51 test(std::string("(a([bc]))"), std::regex_constants::awk, 2);
52
53 test(std::string("\\(a\\)"), std::regex_constants::grep, 1);
54 test(std::string("\\(a[bc]\\)"), std::regex_constants::grep, 1);
55 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::grep, 2);
56 test(std::string("(a([bc]))"), std::regex_constants::grep, 0);
57
58 test(std::string("\\(a\\)"), std::regex_constants::egrep, 0);
59 test(std::string("\\(a[bc]\\)"), std::regex_constants::egrep, 0);
60 test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::egrep, 0);
61 test(std::string("(a([bc]))"), std::regex_constants::egrep, 2);
62 }
63