1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <regex> 11 12 // class match_results<BidirectionalIterator, Allocator> 13 14 // string_type 15 // format(const char_type* fmt, 16 // regex_constants::match_flag_type flags = regex_constants::format_default) const; 17 18 #include <iostream> 19 20 #include <regex> 21 #include <cassert> 22 23 int main() 24 { 25 { 26 std::match_results<const char*> m; 27 const char s[] = "abcdefghijk"; 28 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi"))); 29 30 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2"; 31 std::string out = m.format(fmt); 32 assert(out == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e"); 33 } 34 { 35 std::match_results<const char*> m; 36 const char s[] = "abcdefghijk"; 37 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi"))); 38 39 const char fmt[] = "prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2"; 40 std::string out = m.format(fmt, std::regex_constants::format_sed); 41 assert(out == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2"); 42 } 43 { 44 std::match_results<const char*> m; 45 const char s[] = "abcdefghijk"; 46 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi"))); 47 48 const char fmt[] = "match: &, m[1]: \\1, m[2]: \\2"; 49 std::string out = m.format(fmt, std::regex_constants::format_sed); 50 assert(out == "match: cdefghi, m[1]: efg, m[2]: e"); 51 } 52 53 { 54 std::match_results<const wchar_t*> m; 55 const wchar_t s[] = L"abcdefghijk"; 56 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi"))); 57 58 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2"; 59 std::wstring out = m.format(fmt); 60 assert(out == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e"); 61 } 62 { 63 std::match_results<const wchar_t*> m; 64 const wchar_t s[] = L"abcdefghijk"; 65 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi"))); 66 67 const wchar_t fmt[] = L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2"; 68 std::wstring out = m.format(fmt, std::regex_constants::format_sed); 69 assert(out == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2"); 70 } 71 { 72 std::match_results<const wchar_t*> m; 73 const wchar_t s[] = L"abcdefghijk"; 74 assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi"))); 75 76 const wchar_t fmt[] = L"match: &, m[1]: \\1, m[2]: \\2"; 77 std::wstring out = m.format(fmt, std::regex_constants::format_sed); 78 assert(out == L"match: cdefghi, m[1]: efg, m[2]: e"); 79 } 80 } 81
