101 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// template <class OutputIter, class ST, class SA>14// OutputIter15// format(OutputIter out, const basic_string<char_type, ST, SA>& fmt,16// regex_constants::match_flag_type flags = regex_constants::format_default) const;17 18#include <regex>19#include <cassert>20 21#include "test_macros.h"22#include "test_iterators.h"23#include "test_allocator.h"24 25int main(int, char**)26{27 typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > nstr;28 {29 std::match_results<const char*> m;30 const char s[] = "abcdefghijk";31 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));32 33 char out[100] = {0};34 nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");35 auto r = m.format(cpp17_output_iterator<char*>(out), fmt);36 assert(base(r) == out + 58);37 assert(std::string(out) == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");38 }39 {40 std::match_results<const char*> m;41 const char s[] = "abcdefghijk";42 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));43 44 char out[100] = {0};45 nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");46 auto r = m.format(cpp17_output_iterator<char*>(out), fmt, std::regex_constants::format_sed);47 assert(base(r) == out + 59);48 assert(std::string(out) == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");49 }50 {51 std::match_results<const char*> m;52 const char s[] = "abcdefghijk";53 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));54 55 char out[100] = {0};56 nstr fmt("match: &, m[1]: \\1, m[2]: \\2");57 auto r = m.format(cpp17_output_iterator<char*>(out), fmt, std::regex_constants::format_sed);58 assert(base(r) == out + 34);59 assert(std::string(out) == "match: cdefghi, m[1]: efg, m[2]: e");60 }61 62#ifndef TEST_HAS_NO_WIDE_CHARACTERS63 typedef std::basic_string<wchar_t, std::char_traits<wchar_t>, test_allocator<wchar_t> > wstr;64 {65 std::match_results<const wchar_t*> m;66 const wchar_t s[] = L"abcdefghijk";67 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));68 69 wchar_t out[100] = {0};70 wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");71 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt);72 assert(base(r) == out + 58);73 assert(std::wstring(out) == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");74 }75 {76 std::match_results<const wchar_t*> m;77 const wchar_t s[] = L"abcdefghijk";78 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));79 80 wchar_t out[100] = {0};81 wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");82 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt, std::regex_constants::format_sed);83 assert(base(r) == out + 59);84 assert(std::wstring(out) == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");85 }86 {87 std::match_results<const wchar_t*> m;88 const wchar_t s[] = L"abcdefghijk";89 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));90 91 wchar_t out[100] = {0};92 wstr fmt(L"match: &, m[1]: \\1, m[2]: \\2");93 auto r = m.format(cpp17_output_iterator<wchar_t*>(out), fmt, std::regex_constants::format_sed);94 assert(base(r) == out + 34);95 assert(std::wstring(out) == L"match: cdefghi, m[1]: efg, m[2]: e");96 }97#endif // TEST_HAS_NO_WIDE_CHARACTERS98 99 return 0;100}101