ctype.cpp

使用QT为linux 下的mplayer写的一个新的gui

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};

//An helper struct to check wchar_t index without generating warnings
//under some compilers (gcc) because of a limited range of value
//(when wchar_t is unsigned)
template <bool _IsSigned>
struct _WCharIndexT;

#if !defined (__BORLANDC__) && \
    !(defined (__GNUC__) && (defined (__MINGW32__) || defined (__CYGWIN__))) && \
    !defined (__ICL)
_STLP_TEMPLATE_NULL
struct _WCharIndexT<true> {
  static bool in_range(wchar_t c, size_t upperBound) {
    return c >= 0 && size_t(c) < upperBound;
  }
};
#endif

_STLP_TEMPLATE_NULL
struct _WCharIndexT<false> {
  static bool in_range(wchar_t c, size_t upperBound) {
    return size_t(c) < upperBound;
  }
};

typedef _WCharIndexT<wchar_t(-1) < 0> _WCharIndex;

// Some helper functions used in ctype<>::scan_is and scan_is_not.

struct _Ctype_is_mask {
  typedef char argument_type;
  typedef bool result_type;

  ctype_base::mask _Mask;
  const ctype_base::mask* _M_table;

  _Ctype_is_mask(ctype_base::mask __m, const ctype_base::mask* __t) : _Mask(__m), _M_table(__t) {}
  bool operator()(char __c) const { return (_M_table[(unsigned char) __c] & _Mask) != 0; }
};

struct _Ctype_not_mask {
  typedef char argument_type;
  typedef bool result_type;

  ctype_base::mask _Mask;
  const ctype_base::mask* _M_table;

  _Ctype_not_mask(ctype_base::mask __m, const ctype_base::mask* __t) : _Mask(__m), _M_table(__t) {}
  bool operator()(char __c) const { return (_M_table[(unsigned char) __c] & _Mask) == 0; }
};

ctype<char>::ctype(const ctype_base::mask * __tab, bool __del, size_t __refs) :
  locale::facet(__refs),
  _M_ctype_table(__tab ? __tab : classic_table()),
  _M_delete(__tab && __del)
{}

ctype<char>::~ctype() {
  if (_M_delete)
    delete[] __CONST_CAST(ctype_base::mask *, _M_ctype_table);
}

const char*
ctype<char>::scan_is(ctype_base::mask  __m, const char* __low, const char* __high) const  {
  return _STLP_STD::find_if(__low, __high, _Ctype_is_mask(__m, _M_ctype_table));
}

const char*
ctype<char>::scan_not(ctype_base::mask  __m, const char* __low, const char* __high) const {
  return _STLP_STD::find_if(__low, __high, _Ctype_not_mask(__m, _M_ctype_table));
}

char ctype<char>::do_toupper(char __c) const
{ return (char) _S_upper[(unsigned char) __c]; }
char ctype<char>::do_tolower(char __c) const
{ return (char) _S_lower[(unsigned char) __c]; }

const char* ctype<char>::do_toupper(char* __low, const char* __high) const {
  for ( ; __low < __high; ++__low)
    *__low = (char) _S_upper[(unsigned char) *__low];
  return __high;
}
const char* ctype<char>::do_tolower(char* __low, const char* __high) const {
  for ( ; __low < __high; ++__low)
    *__low = (char) _S_lower[(unsigned char) *__low];
  return __high;
}

char
ctype<char>::do_widen(char __c) const { return __c; }

const char*
ctype<char>::do_widen(const char* __low, const char* __high,
                      char* __to) const {
  _STLP_PRIV __copy_trivial(__low, __high, __to);
  return __high;
}
char
ctype<char>::do_narrow(char __c, char /* dfault */ ) const { return __c; }
const char*
ctype<char>::do_narrow(const char* __low, const char* __high,
                       char /* dfault */, char* __to) const {
  _STLP_PRIV __copy_trivial(__low, __high, __to);
  return __high;
}


#if !defined (_STLP_NO_WCHAR_T)

  struct _Ctype_w_is_mask {
    typedef wchar_t argument_type;
    typedef bool    result_type;

    ctype_base::mask M;
    const ctype_base::mask* table;

    _Ctype_w_is_mask(ctype_base::mask m, const ctype_base::mask* t)
      : M(m), table(t) {}
    bool operator()(wchar_t c) const {
      return _WCharIndex::in_range(c, ctype<char>::table_size) && (table[c] & M);
    }
  };

//----------------------------------------------------------------------
// ctype<wchar_t>

ctype<wchar_t>::~ctype() {}


bool ctype<wchar_t>::do_is(ctype_base::mask  m, wchar_t c) const {
  const ctype_base::mask * table = ctype<char>::classic_table();
  return _WCharIndex::in_range(c, ctype<char>::table_size) && (m & table[c]);
}

const wchar_t* ctype<wchar_t>::do_is(const wchar_t* low, const wchar_t* high,
                                     ctype_base::mask * vec) const {
  // boris : not clear if this is the right thing to do...
  const ctype_base::mask * table = ctype<char>::classic_table();
  for ( ; low < high; ++low, ++vec) {
    wchar_t c = *low;
    *vec = _WCharIndex::in_range(c, ctype<char>::table_size) ? table[c] : ctype_base::mask(0);
  }
  return high;
}

const wchar_t*
ctype<wchar_t>::do_scan_is(ctype_base::mask  m,
                           const wchar_t* low, const wchar_t* high) const {
  return find_if(low, high, _Ctype_w_is_mask(m, ctype<char>::classic_table()));
}


const wchar_t*
ctype<wchar_t>::do_scan_not(ctype_base::mask  m,
                            const wchar_t* low, const wchar_t* high) const {
  return find_if(low, high, not1(_Ctype_w_is_mask(m, ctype<char>::classic_table())));
}

wchar_t ctype<wchar_t>::do_toupper(wchar_t c) const {
  return _WCharIndex::in_range(c, ctype<char>::table_size) ? (wchar_t)_S_upper[c]
                                                           : c;
}

const wchar_t*
ctype<wchar_t>::do_toupper(wchar_t* low, const wchar_t* high) const {
  for ( ; low < high; ++low) {
    wchar_t c = *low;
    *low = _WCharIndex::in_range(c, ctype<char>::table_size) ? (wchar_t)_S_upper[c]
                                                             : c;
  }
  return high;
}

wchar_t ctype<wchar_t>::do_tolower(wchar_t c) const {
  return _WCharIndex::in_range(c, ctype<char>::table_size) ? (wchar_t)_S_lower[c]
                                                           : c;
}

const wchar_t*
ctype<wchar_t>::do_tolower(wchar_t* low, const wchar_t* high) const {
  for ( ; low < high; ++low) {
    wchar_t c = *low;
    *low = _WCharIndex::in_range(c, ctype<char>::table_size) ? (wchar_t)_S_lower[c]
                                                             : c;
  }
  return high;
}

wchar_t ctype<wchar_t>::do_widen(char c) const {
  return (wchar_t)(unsigned char)c;
}

const char*
ctype<wchar_t>::do_widen(const char* low, const char* high,
                         wchar_t* dest) const {
  while (low != high)
    *dest++ = (wchar_t)(unsigned char)*low++;
  return high;
}

char ctype<wchar_t>::do_narrow(wchar_t c, char dfault) const {
  return (unsigned char) c == c ? c : dfault;
}

const wchar_t* ctype<wchar_t>::do_narrow(const wchar_t* low,
                                         const wchar_t* high,
                                         char dfault, char* dest) const {
  while (low != high) {
    wchar_t c = *low++;
    *dest++ = (unsigned char) c == c ? c : dfault;
  }

  return high;
}

# endif
_STLP_END_NAMESPACE

// Local Variables:
// mode:C++
// End: