83 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <regex>10 11// class match_results<BidirectionalIterator, Allocator>12 13// string_type14// format(const char_type* fmt,15// regex_constants::match_flag_type flags = regex_constants::format_default) const;16 17#include <regex>18#include <cassert>19#include "test_macros.h"20 21int main(int, char**)22{23 {24 std::match_results<const char*> m;25 const char s[] = "abcdefghijk";26 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));27 28 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";29 std::string out = m.format(fmt);30 assert(out == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");31 }32 {33 std::match_results<const char*> m;34 const char s[] = "abcdefghijk";35 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));36 37 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";38 std::string out = m.format(fmt, std::regex_constants::format_sed);39 assert(out == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");40 }41 {42 std::match_results<const char*> m;43 const char s[] = "abcdefghijk";44 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));45 46 const char fmt[] = "match: &, m[1]: \\1, m[2]: \\2";47 std::string out = m.format(fmt, std::regex_constants::format_sed);48 assert(out == "match: cdefghi, m[1]: efg, m[2]: e");49 }50 51#ifndef TEST_HAS_NO_WIDE_CHARACTERS52 {53 std::match_results<const wchar_t*> m;54 const wchar_t s[] = L"abcdefghijk";55 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));56 57 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";58 std::wstring out = m.format(fmt);59 assert(out == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");60 }61 {62 std::match_results<const wchar_t*> m;63 const wchar_t s[] = L"abcdefghijk";64 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));65 66 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2";67 std::wstring out = m.format(fmt, std::regex_constants::format_sed);68 assert(out == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");69 }70 {71 std::match_results<const wchar_t*> m;72 const wchar_t s[] = L"abcdefghijk";73 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));74 75 const wchar_t fmt[] = L"match: &, m[1]: \\1, m[2]: \\2";76 std::wstring out = m.format(fmt, std::regex_constants::format_sed);77 assert(out == L"match: cdefghi, m[1]: efg, m[2]: e");78 }79#endif // TEST_HAS_NO_WIDE_CHARACTERS80 81 return 0;82}83