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 ForwardIterator>
15 // basic_regex(ForwardIterator first, ForwardIterator last,
16 // flag_type f = regex_constants::ECMAScript);
17
18 #include <regex>
19 #include <cassert>
20
21 #include "test_iterators.h"
22 #include "test_macros.h"
23
24 template <class Iter>
25 void
test(Iter first,Iter last,std::regex_constants::syntax_option_type f,unsigned mc)26 test(Iter first, Iter last, std::regex_constants::syntax_option_type f, unsigned mc)
27 {
28 std::basic_regex<typename std::iterator_traits<Iter>::value_type> r(first, last, f);
29 assert(r.flags() == f);
30 assert(r.mark_count() == mc);
31 }
32
main()33 int main()
34 {
35 typedef forward_iterator<std::string::const_iterator> F;
36 std::string s1("\\(a\\)");
37 std::string s2("\\(a[bc]\\)");
38 std::string s3("\\(a\\([bc]\\)\\)");
39 std::string s4("(a([bc]))");
40
41 test(F(s1.begin()), F(s1.end()), std::regex_constants::basic, 1);
42 test(F(s2.begin()), F(s2.end()), std::regex_constants::basic, 1);
43 test(F(s3.begin()), F(s3.end()), std::regex_constants::basic, 2);
44 test(F(s4.begin()), F(s4.end()), std::regex_constants::basic, 0);
45
46 test(F(s1.begin()), F(s1.end()), std::regex_constants::extended, 0);
47 test(F(s2.begin()), F(s2.end()), std::regex_constants::extended, 0);
48 test(F(s3.begin()), F(s3.end()), std::regex_constants::extended, 0);
49 test(F(s4.begin()), F(s4.end()), std::regex_constants::extended, 2);
50
51 test(F(s1.begin()), F(s1.end()), std::regex_constants::ECMAScript, 0);
52 test(F(s2.begin()), F(s2.end()), std::regex_constants::ECMAScript, 0);
53 test(F(s3.begin()), F(s3.end()), std::regex_constants::ECMAScript, 0);
54 test(F(s4.begin()), F(s4.end()), std::regex_constants::ECMAScript, 2);
55
56 test(F(s1.begin()), F(s1.end()), std::regex_constants::awk, 0);
57 test(F(s2.begin()), F(s2.end()), std::regex_constants::awk, 0);
58 test(F(s3.begin()), F(s3.end()), std::regex_constants::awk, 0);
59 test(F(s4.begin()), F(s4.end()), std::regex_constants::awk, 2);
60
61 test(F(s1.begin()), F(s1.end()), std::regex_constants::grep, 1);
62 test(F(s2.begin()), F(s2.end()), std::regex_constants::grep, 1);
63 test(F(s3.begin()), F(s3.end()), std::regex_constants::grep, 2);
64 test(F(s4.begin()), F(s4.end()), std::regex_constants::grep, 0);
65
66 test(F(s1.begin()), F(s1.end()), std::regex_constants::egrep, 0);
67 test(F(s2.begin()), F(s2.end()), std::regex_constants::egrep, 0);
68 test(F(s3.begin()), F(s3.end()), std::regex_constants::egrep, 0);
69 test(F(s4.begin()), F(s4.end()), std::regex_constants::egrep, 2);
70 }
71