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      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 // template <class ST, class SA>
     15 //   basic_string<char_type, ST, SA>
     16 //   format(const basic_string<char_type, ST, SA>& fmt,
     17 //          regex_constants::match_flag_type flags = regex_constants::format_default) const;
     18 
     19 #include <iostream>
     20 
     21 #include <regex>
     22 #include <cassert>
     23 
     24 #include "test_macros.h"
     25 #include "test_allocator.h"
     26 
     27 int main()
     28 {
     29     typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > nstr;
     30     typedef std::basic_string<wchar_t, std::char_traits<wchar_t>, test_allocator<wchar_t> > wstr;
     31     {
     32         std::match_results<const char*> m;
     33         const char s[] = "abcdefghijk";
     34         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
     35 
     36         nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     37         nstr out = m.format(fmt);
     38         assert(out == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
     39     }
     40     {
     41         std::match_results<const char*> m;
     42         const char s[] = "abcdefghijk";
     43         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
     44 
     45         nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     46         nstr out = m.format(fmt, std::regex_constants::format_sed);
     47         assert(out == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
     48     }
     49     {
     50         std::match_results<const char*> m;
     51         const char s[] = "abcdefghijk";
     52         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
     53 
     54         nstr fmt("match: &, m[1]: \\1, m[2]: \\2");
     55         nstr out = m.format(fmt, std::regex_constants::format_sed);
     56         assert(out == "match: cdefghi, m[1]: efg, m[2]: e");
     57     }
     58 
     59     {
     60         std::match_results<const wchar_t*> m;
     61         const wchar_t s[] = L"abcdefghijk";
     62         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     63 
     64         wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     65         wstr out = m.format(fmt);
     66         assert(out == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
     67     }
     68     {
     69         std::match_results<const wchar_t*> m;
     70         const wchar_t s[] = L"abcdefghijk";
     71         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     72 
     73         wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     74         wstr out = m.format(fmt, std::regex_constants::format_sed);
     75         assert(out == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
     76     }
     77     {
     78         std::match_results<const wchar_t*> m;
     79         const wchar_t s[] = L"abcdefghijk";
     80         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     81 
     82         wstr fmt(L"match: &, m[1]: \\1, m[2]: \\2");
     83         wstr out = m.format(fmt, std::regex_constants::format_sed);
     84         assert(out == L"match: cdefghi, m[1]: efg, m[2]: e");
     85     }
     86 }
     87