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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 OutputIter, class ST, class SA>
     15 //   OutputIter
     16 //   format(OutputIter out, 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_iterators.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         char out[100] = {0};
     37         nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     38         char* r = m.format(output_iterator<char*>(out), fmt).base();
     39         assert(r == out + 58);
     40         assert(std::string(out) == "prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
     41     }
     42     {
     43         std::match_results<const char*> m;
     44         const char s[] = "abcdefghijk";
     45         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
     46 
     47         char out[100] = {0};
     48         nstr fmt("prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     49         char* r = m.format(output_iterator<char*>(out),
     50                     fmt, std::regex_constants::format_sed).base();
     51         assert(r == out + 59);
     52         assert(std::string(out) == "prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
     53     }
     54     {
     55         std::match_results<const char*> m;
     56         const char s[] = "abcdefghijk";
     57         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
     58 
     59         char out[100] = {0};
     60         nstr fmt("match: &, m[1]: \\1, m[2]: \\2");
     61         char* r = m.format(output_iterator<char*>(out),
     62                     fmt, std::regex_constants::format_sed).base();
     63         assert(r == out + 34);
     64         assert(std::string(out) == "match: cdefghi, m[1]: efg, m[2]: e");
     65     }
     66 
     67     {
     68         std::match_results<const wchar_t*> m;
     69         const wchar_t s[] = L"abcdefghijk";
     70         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     71 
     72         wchar_t out[100] = {0};
     73         wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     74         wchar_t* r = m.format(output_iterator<wchar_t*>(out), fmt).base();
     75         assert(r == out + 58);
     76         assert(std::wstring(out) == L"prefix: ab, match: cdefghi, suffix: jk, m[1]: efg, m[2]: e");
     77     }
     78     {
     79         std::match_results<const wchar_t*> m;
     80         const wchar_t s[] = L"abcdefghijk";
     81         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     82 
     83         wchar_t out[100] = {0};
     84         wstr fmt(L"prefix: $`, match: $&, suffix: $', m[1]: $1, m[2]: $2");
     85         wchar_t* r = m.format(output_iterator<wchar_t*>(out),
     86                     fmt, std::regex_constants::format_sed).base();
     87         assert(r == out + 59);
     88         assert(std::wstring(out) == L"prefix: $`, match: $cdefghi, suffix: $', m[1]: $1, m[2]: $2");
     89     }
     90     {
     91         std::match_results<const wchar_t*> m;
     92         const wchar_t s[] = L"abcdefghijk";
     93         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi")));
     94 
     95         wchar_t out[100] = {0};
     96         wstr fmt(L"match: &, m[1]: \\1, m[2]: \\2");
     97         wchar_t* r = m.format(output_iterator<wchar_t*>(out),
     98                     fmt, std::regex_constants::format_sed).base();
     99         assert(r == out + 34);
    100         assert(std::wstring(out) == L"match: cdefghi, m[1]: efg, m[2]: e");
    101     }
    102 }
    103