110 lines
4.8 KiB
C++
110 lines
4.8 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 OutputIterator, class BidirectionalIterator,
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// class traits, class charT, class ST, class SA>
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// OutputIterator
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// regex_replace(OutputIterator out,
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// BidirectionalIterator first, BidirectionalIterator last,
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// const basic_regex<charT, traits>& e,
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// const basic_string<charT, ST, SA>& 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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#include "test_iterators.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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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-$&"));
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assert(r.base() == buf+40);
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assert(buf == std::string("123-555-1234, 123-555-2345, 123-555-3456"));
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}
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{
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std::regex phone_numbers("\\d{3}-\\d{4}");
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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-$&"),
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std::regex_constants::format_sed);
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assert(r.base() == buf+43);
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assert(buf == std::string("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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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-&"),
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std::regex_constants::format_sed);
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assert(r.base() == buf+40);
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assert(buf == std::string("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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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-$&"),
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std::regex_constants::format_no_copy);
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assert(r.base() == buf+36);
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assert(buf == std::string("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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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-$&"),
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std::regex_constants::format_first_only);
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assert(r.base() == buf+32);
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assert(buf == std::string("123-555-1234, 555-2345, 555-3456"));
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}
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{
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std::regex phone_numbers("\\d{3}-\\d{4}");
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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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typedef output_iterator<char*> Out;
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typedef bidirectional_iterator<const char*> Bi;
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char buf[100] = {0};
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Out r = std::regex_replace(Out(buf), Bi(std::begin(phone_book)),
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Bi(std::end(phone_book)-1), phone_numbers,
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std::string("123-$&"),
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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.base() == buf+12);
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assert(buf == std::string("123-555-1234"));
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}
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return 0;
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}
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