test6.pass.cpp
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <regex>
// template <class traits, class charT>
// basic_string<charT>
// regex_replace(const charT* s,
// const basic_regex<charT, traits>& e,
// const charT* fmt,
// regex_constants::match_flag_type flags =
// regex_constants::match_default);
#include <regex>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&");
assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_sed);
assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-&",
std::regex_constants::format_sed);
assert(r == "123-555-1234, 123-555-2345, 123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_no_copy);
assert(r == "123-555-1234123-555-2345123-555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_first_only);
assert(r == "123-555-1234, 555-2345, 555-3456");
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "555-1234, 555-2345, 555-3456";
std::string r = std::regex_replace(phone_book, phone_numbers,
"123-$&",
std::regex_constants::format_first_only |
std::regex_constants::format_no_copy);
assert(r == "123-555-1234");
}
return 0;
}