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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 traits, class charT, class ST, class SA>
// basic_string<charT, ST, SA>
// regex_replace(const basic_string<charT, ST, SA>& s,
// const basic_regex<charT, traits>& e, const charT* fmt,
// regex_constants::match_flag_type flags =
// regex_constants::match_default);
#include <regex>
#include <cassert>
int main()
{
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&");
assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_sed);
assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-&",
std::regex_constants::format_sed);
assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_no_copy);
assert(r == "123-555-1234123-555-2345123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_first_only);
assert(r == "123-555-1234, 555-2345, 555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
std::string phone_book("555-1234, 555-2345, 555-3456");
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_first_only |
std::regex_constants::format_no_copy);
assert(r == "123-555-1234");
}
}
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