libcxx/test/std/re/re.iter/re.tokiter/re.tokiter.cnstr/int.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <regex>
  10
  11 // class regex_token_iterator<BidirectionalIterator, charT, traits>
  12
  13 // regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b,
  14 //                      const regex_type& re, int submatch = 0,
  15 //                      regex_constants::match_flag_type m =
  16 //                                              regex_constants::match_default);
  17
  18 #include <regex>
  19 #include <cassert>
  20 #include "test_macros.h"
  21
  22 int main(int, char**)
  23 {
  24     {
  25         std::regex phone_numbers("\\d{3}-\\d{4}");
  26         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
  27         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
  28                                      phone_numbers, -1);
  29         assert(i != std::cregex_token_iterator());
  30         assert(i->str() == "start ");
  31         ++i;
  32         assert(i != std::cregex_token_iterator());
  33         assert(i->str() == ", ");
  34         ++i;
  35         assert(i != std::cregex_token_iterator());
  36         assert(i->str() == ", ");
  37         ++i;
  38         assert(i != std::cregex_token_iterator());
  39         assert(i->str() == " end");
  40         ++i;
  41         assert(i == std::cregex_token_iterator());
  42     }
  43     {
  44         std::regex phone_numbers("\\d{3}-\\d{4}");
  45         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
  46         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
  47                                      phone_numbers);
  48         assert(i != std::cregex_token_iterator());
  49         assert(i->str() == "555-1234");
  50         ++i;
  51         assert(i != std::cregex_token_iterator());
  52         assert(i->str() == "555-2345");
  53         ++i;
  54         assert(i != std::cregex_token_iterator());
  55         assert(i->str() == "555-3456");
  56         ++i;
  57         assert(i == std::cregex_token_iterator());
  58     }
  59     {
  60         std::regex phone_numbers("\\d{3}-(\\d{4})");
  61         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
  62         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
  63                                      phone_numbers, 1);
  64         assert(i != std::cregex_token_iterator());
  65         assert(i->str() == "1234");
  66         ++i;
  67         assert(i != std::cregex_token_iterator());
  68         assert(i->str() == "2345");
  69         ++i;
  70         assert(i != std::cregex_token_iterator());
  71         assert(i->str() == "3456");
  72         ++i;
  73         assert(i == std::cregex_token_iterator());
  74     }
  75
  76   return 0;
  77 }