libstdc++-v3/testsuite/28_regex/traits/char/user_defined.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-timeout-factor 2 }
   3
   4 //
   5 // 2014-01-07  Tim Shen <timshen91@gmail.com>
   6 //
   7 // Copyright (C) 2010-2024 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14 //
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19 //
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 // 28.3 Requirements [re.req]
  25 // 28.2 (4) Table 127 - Regular expression traits class requirements
  26 // 28.7 Class template regex_traits [re.traits]
  27
  28 #include <regex>
  29 #include <string>
  30 #include <testsuite_hooks.h>
  31
  32 using namespace std;
  33
  34 bool called_transform = false;
  35 bool called_nocase = false;
  36
  37 template<typename CharT>
  38   class MyRegexTraits
  39   : public regex_traits<CharT>
  40   {
  41   public:
  42     CharT
  43     translate(CharT c) const
  44     {
  45       return c+1;
  46     }
  47
  48     CharT
  49     translate_nocase(CharT c) const
  50     {
  51       called_nocase = true;
  52       return regex_traits<CharT>::translate_nocase(c);
  53     }
  54
  55     template<typename FwdIt>
  56       basic_string<CharT>
  57       transform(FwdIt begin, FwdIt end) const
  58       {
  59         called_transform = true;
  60         return regex_traits<CharT>::transform(begin, end);
  61       }
  62   };
  63
  64 void
  65 test01()
  66 {
  67   {
  68     basic_regex<char, MyRegexTraits<char>> re(".");
  69     VERIFY(!regex_match("\n", re));
  70     VERIFY(!regex_match("\r", re));
  71   }
  72   {
  73     VERIFY(!called_transform);
  74     basic_regex<char, MyRegexTraits<char>> re("[a]", regex::collate);
  75     VERIFY(regex_match("a", re));
  76     VERIFY(called_transform);
  77     called_transform = false;
  78   }
  79   {
  80     VERIFY(!called_nocase);
  81     basic_regex<char, MyRegexTraits<char>> re("[a]", regex::icase);
  82     VERIFY(regex_match("A", re));
  83     VERIFY(called_nocase);
  84     called_nocase = false;
  85   }
  86   {
  87     basic_regex<char, MyRegexTraits<char>> re("[T-f]", regex::icase);
  88     VERIFY(regex_match("A", re));
  89     VERIFY(regex_match("F", re));
  90     VERIFY(regex_match("a", re));
  91     VERIFY(regex_match("f", re));
  92
  93     VERIFY(!regex_match("G", re));
  94     VERIFY(!regex_match("S", re));
  95     VERIFY(!regex_match("g", re));
  96     VERIFY(!regex_match("s", re));
  97
  98     VERIFY(regex_match("T", re));
  99     VERIFY(regex_match("Z", re));
 100     VERIFY(regex_match("t", re));
 101     VERIFY(regex_match("z", re));
 102   }
 103   // icase doesn't participate with the presence of collate and user-defined traits.
 104   {
 105     basic_regex<char, MyRegexTraits<char>> re("[T-f]", regex::icase | regex::collate);
 106     VERIFY(!regex_match("A", re));
 107     VERIFY(!regex_match("S", re));
 108     VERIFY(regex_match("T", re));
 109     VERIFY(regex_match("Z", re));
 110     VERIFY(regex_match("a", re));
 111     VERIFY(regex_match("f", re));
 112     VERIFY(!regex_match("g", re));
 113   }
 114 }
 115
 116 int main()
 117 {
 118   test01();
 119   return 0;
 120 }