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

   1 // { dg-do run { target c++11 } }
   2
   3 //
   4 // 2014-01-07  Tim Shen <timshen91@gmail.com>
   5 //
   6 // Copyright (C) 2010-2020 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // 28.3 Requirements [re.req]
  24 // 28.2 (4) Table 127 - Regular expression traits class requirements
  25 // 28.7 Class template regex_traits [re.traits]
  26
  27 #include <regex>
  28 #include <string>
  29 #include <testsuite_hooks.h>
  30
  31 using namespace std;
  32
  33 bool called_transform = false;
  34 bool called_nocase = false;
  35
  36 template<typename CharT>
  37   class MyRegexTraits
  38   : public regex_traits<CharT>
  39   {
  40   public:
  41     CharT
  42     translate(CharT c) const
  43     {
  44       return c+1;
  45     }
  46
  47     CharT
  48     translate_nocase(CharT c) const
  49     {
  50       called_nocase = true;
  51       return regex_traits<CharT>::translate_nocase(c);
  52     }
  53
  54     template<typename FwdIt>
  55       basic_string<CharT>
  56       transform(FwdIt begin, FwdIt end) const
  57       {
  58         called_transform = true;
  59         return regex_traits<CharT>::transform(begin, end);
  60       }
  61   };
  62
  63 void
  64 test01()
  65 {
  66   {
  67     basic_regex<char, MyRegexTraits<char>> re(".");
  68     VERIFY(!regex_match("\n", re));
  69     VERIFY(!regex_match("\r", re));
  70   }
  71   {
  72     VERIFY(!called_transform);
  73     basic_regex<char, MyRegexTraits<char>> re("[a]", regex::collate);
  74     VERIFY(regex_match("a", re));
  75     VERIFY(called_transform);
  76     called_transform = false;
  77   }
  78   {
  79     VERIFY(!called_nocase);
  80     basic_regex<char, MyRegexTraits<char>> re("[a]", regex::icase);
  81     VERIFY(regex_match("A", re));
  82     VERIFY(called_nocase);
  83     called_nocase = false;
  84   }
  85   {
  86     basic_regex<char, MyRegexTraits<char>> re("[T-f]", regex::icase);
  87     VERIFY(regex_match("A", re));
  88     VERIFY(regex_match("F", re));
  89     VERIFY(regex_match("a", re));
  90     VERIFY(regex_match("f", re));
  91
  92     VERIFY(!regex_match("G", re));
  93     VERIFY(!regex_match("S", re));
  94     VERIFY(!regex_match("g", re));
  95     VERIFY(!regex_match("s", re));
  96
  97     VERIFY(regex_match("T", re));
  98     VERIFY(regex_match("Z", re));
  99     VERIFY(regex_match("t", re));
 100     VERIFY(regex_match("z", re));
 101   }
 102   // icase doesn't participate with the presence of collate and user-defined traits.
 103   {
 104     basic_regex<char, MyRegexTraits<char>> re("[T-f]", regex::icase | regex::collate);
 105     VERIFY(!regex_match("A", re));
 106     VERIFY(!regex_match("S", re));
 107     VERIFY(regex_match("T", re));
 108     VERIFY(regex_match("Z", re));
 109     VERIFY(regex_match("a", re));
 110     VERIFY(regex_match("f", re));
 111     VERIFY(!regex_match("g", re));
 112   }
 113 }
 114
 115 int main()
 116 {
 117   test01();
 118   return 0;
 119 }