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