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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// template <class charT, class traits = regex_traits<charT>> class basic_regex;
// template <class ST, class SA>
// basic_regex(const basic_string<charT, ST, SA>& s,
// flag_type f = regex_constants::ECMAScript);
#include <regex>
#include <cassert>
template <class String>
void
test(const String& p, std::regex_constants::syntax_option_type f, unsigned mc)
{
std::basic_regex<typename String::value_type> r(p, f);
assert(r.flags() == f);
assert(r.mark_count() == mc);
}
int main()
{
test(std::string("\\(a\\)"), std::regex_constants::basic, 1);
test(std::string("\\(a[bc]\\)"), std::regex_constants::basic, 1);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::basic, 2);
test(std::string("(a([bc]))"), std::regex_constants::basic, 0);
test(std::string("\\(a\\)"), std::regex_constants::extended, 0);
test(std::string("\\(a[bc]\\)"), std::regex_constants::extended, 0);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::extended, 0);
test(std::string("(a([bc]))"), std::regex_constants::extended, 2);
test(std::string("\\(a\\)"), std::regex_constants::ECMAScript, 0);
test(std::string("\\(a[bc]\\)"), std::regex_constants::ECMAScript, 0);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::ECMAScript, 0);
test(std::string("(a([bc]))"), std::regex_constants::ECMAScript, 2);
test(std::string("\\(a\\)"), std::regex_constants::awk, 0);
test(std::string("\\(a[bc]\\)"), std::regex_constants::awk, 0);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::awk, 0);
test(std::string("(a([bc]))"), std::regex_constants::awk, 2);
test(std::string("\\(a\\)"), std::regex_constants::grep, 1);
test(std::string("\\(a[bc]\\)"), std::regex_constants::grep, 1);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::grep, 2);
test(std::string("(a([bc]))"), std::regex_constants::grep, 0);
test(std::string("\\(a\\)"), std::regex_constants::egrep, 0);
test(std::string("\\(a[bc]\\)"), std::regex_constants::egrep, 0);
test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::egrep, 0);
test(std::string("(a([bc]))"), std::regex_constants::egrep, 2);
}
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