u32regex_token_iterator.hpp

C++的一个好库。。。现在很流行

   u32regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re, 
                        const std::vector<int>& submatches, match_flag_type m = match_default)
                        : pdata(new impl(&re, b, submatches, m))
   {
      if(!pdata->init(a))
         pdata.reset();
   }
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
      // can't reliably get this to work....
#elif (BOOST_WORKAROUND(__BORLANDC__, >= 0x560) && BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570)))\
      || BOOST_WORKAROUND(BOOST_MSVC, < 1300) \
      || BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003)) \
      || BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(55500))
   template <class T>
   u32regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re,
                        const T& submatches, match_flag_type m = match_default)
                        : pdata(new impl(&re, b, submatches, m))
   {
      if(!pdata->init(a))
         pdata.reset();
   }
#else
   template <std::size_t N>
   u32regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re,
                        const int (&submatches)[N], match_flag_type m = match_default)
                        : pdata(new impl(&re, b, submatches, m))
   {
      if(!pdata->init(a))
         pdata.reset();
   }
#endif
   u32regex_token_iterator(const u32regex_token_iterator& that)
      : pdata(that.pdata) {}
   u32regex_token_iterator& operator=(const u32regex_token_iterator& that)
   {
      pdata = that.pdata;
      return *this;
   }
   bool operator==(const u32regex_token_iterator& that)const
   { 
      if((pdata.get() == 0) || (that.pdata.get() == 0))
         return pdata.get() == that.pdata.get();
      return pdata->compare(*(that.pdata.get())); 
   }
   bool operator!=(const u32regex_token_iterator& that)const
   { return !(*this == that); }
   const value_type& operator*()const
   { return pdata->get(); }
   const value_type* operator->()const
   { return &(pdata->get()); }
   u32regex_token_iterator& operator++()
   {
      cow();
      if(0 == pdata->next())
      {
         pdata.reset();
      }
      return *this;
   }
   u32regex_token_iterator operator++(int)
   {
      u32regex_token_iterator result(*this);
      ++(*this);
      return result;
   }
private:

   pimpl pdata;

   void cow()
   {
      // copy-on-write
      if(pdata.get() && !pdata.unique())
      {
         pdata.reset(new impl(*(pdata.get())));
      }
   }
};

typedef u32regex_token_iterator<const char*> utf8regex_token_iterator;
typedef u32regex_token_iterator<const UChar*> utf16regex_token_iterator;
typedef u32regex_token_iterator<const UChar32*> utf32regex_token_iterator;

// construction from an integral sub_match id:
inline u32regex_token_iterator<const char*> make_u32regex_token_iterator(const char* p, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const char*>(p, p+std::strlen(p), e, submatch, m);
}
#ifndef BOOST_NO_WREGEX
inline u32regex_token_iterator<const wchar_t*> make_u32regex_token_iterator(const wchar_t* p, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const wchar_t*>(p, p+std::wcslen(p), e, submatch, m);
}
#endif
#ifndef U_WCHAR_IS_UTF16
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(p, p+u_strlen(p), e, m);
}
#endif
template <class charT, class Traits, class Alloc>
inline u32regex_token_iterator<typename std::basic_string<charT, Traits, Alloc>::const_iterator> make_u32regex_token_iterator(const std::basic_string<charT, Traits, Alloc>& p, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
{
   typedef typename std::basic_string<charT, Traits, Alloc>::const_iterator iter_type;
   return u32regex_token_iterator<iter_type>(p.begin(), p.end(), e, m);
}
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UnicodeString& s, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(s.getBuffer(), s.getBuffer() + s.length(), e, submatch, m);
}

#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
// construction from a reference to an array:
template <std::size_t N>
inline u32regex_token_iterator<const char*> make_u32regex_token_iterator(const char* p, const u32regex& e, const int (&submatch)[N], regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const char*>(p, p+std::strlen(p), e, submatch, m);
}
#ifndef BOOST_NO_WREGEX
template <std::size_t N>
inline u32regex_token_iterator<const wchar_t*> make_u32regex_token_iterator(const wchar_t* p, const u32regex& e, const int (&submatch)[N], regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const wchar_t*>(p, p+std::wcslen(p), e, submatch, m);
}
#endif
#ifndef U_WCHAR_IS_UTF16
template <std::size_t N>
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, const int (&submatch)[N], regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(p, p+u_strlen(p), e, m);
}
#endif
template <class charT, class Traits, class Alloc, std::size_t N>
inline u32regex_token_iterator<typename std::basic_string<charT, Traits, Alloc>::const_iterator> make_u32regex_token_iterator(const std::basic_string<charT, Traits, Alloc>& p, const u32regex& e, const int (&submatch)[N], regex_constants::match_flag_type m = regex_constants::match_default)
{
   typedef typename std::basic_string<charT, Traits, Alloc>::const_iterator iter_type;
   return u32regex_token_iterator<iter_type>(p.begin(), p.end(), e, m);
}
template <std::size_t N>
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UnicodeString& s, const u32regex& e, const int (&submatch)[N], regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(s.getBuffer(), s.getBuffer() + s.length(), e, submatch, m);
}
#endif // BOOST_MSVC < 1300

// construction from a vector of sub_match id's:
inline u32regex_token_iterator<const char*> make_u32regex_token_iterator(const char* p, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const char*>(p, p+std::strlen(p), e, submatch, m);
}
#ifndef BOOST_NO_WREGEX
inline u32regex_token_iterator<const wchar_t*> make_u32regex_token_iterator(const wchar_t* p, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const wchar_t*>(p, p+std::wcslen(p), e, submatch, m);
}
#endif
#ifndef U_WCHAR_IS_UTF16
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(p, p+u_strlen(p), e, m);
}
#endif
template <class charT, class Traits, class Alloc>
inline u32regex_token_iterator<typename std::basic_string<charT, Traits, Alloc>::const_iterator> make_u32regex_token_iterator(const std::basic_string<charT, Traits, Alloc>& p, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
{
   typedef typename std::basic_string<charT, Traits, Alloc>::const_iterator iter_type;
   return u32regex_token_iterator<iter_type>(p.begin(), p.end(), e, m);
}
inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UnicodeString& s, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
{
   return u32regex_token_iterator<const UChar*>(s.getBuffer(), s.getBuffer() + s.length(), e, submatch, m);
}

#if BOOST_WORKAROUND(BOOST_MSVC, == 1310)
#  pragma warning(pop)
#endif
#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_SUFFIX
#endif

} // namespace boost

#endif // BOOST_REGEX_V4_REGEX_TOKEN_ITERATOR_HPP