locale_impl.cpp

使用QT为linux 下的mplayer写的一个新的gui

/*
 * Copyright (c) 1999
 * Silicon Graphics Computer Systems, Inc.
 *
 * Copyright (c) 1999
 * Boris Fomitchev
 *
 * This material is provided "as is", with absolutely no warranty expressed
 * or implied. Any use is at your own risk.
 *
 * Permission to use or copy this software for any purpose is hereby granted
 * without fee, provided the above notices are retained on all copies.
 * Permission to modify the code and to distribute modified code is granted,
 * provided the above notices are retained, and a notice that the code was
 * modified is included with the above copyright notice.
 *
 */
#include "stlport_prefix.h"

#include <locale>
#include <typeinfo>
#include <algorithm>
#include <stdexcept>

#include "c_locale.h"
#include "aligned_buffer.h"
#include "locale_impl.h"
#include "message_facets.h"

_STLP_BEGIN_NAMESPACE

static const string _Nameless("*");

static inline bool is_C_locale_name (const char* name)
{ return ((name[0] == 'C') && (name[1] == 0)); }

_Locale_impl * _STLP_CALL _copy_Locale_impl(_Locale_impl *loc)
{
  _STLP_ASSERT( loc != 0 );
  loc->_M_incr();
  _Locale_impl *loc_new = new _Locale_impl(*loc);
  loc->_M_decr();
  return loc_new;
}

locale::facet * _STLP_CALL _get_facet(locale::facet *f)
{
  if (f != 0)
    f->_M_incr();
  return f;
}

void _STLP_CALL _release_facet(locale::facet *&f)
{
  if ((f != 0) && (f->_M_decr() == 0)) {
    delete f;
    f = 0;
  }
}

size_t locale::id::_S_max = 39;

static void _Stl_loc_assign_ids();

static _Stl_aligned_buffer<_Locale_impl::Init> __Loc_init_buf;

_Locale_impl::Init::Init() {
  if (_M_count()._M_incr() == 1) {
    _Locale_impl::_S_initialize();
  }
}

_Locale_impl::Init::~Init() {
  if (_M_count()._M_decr() == 0) {
    _Locale_impl::_S_uninitialize();
  }
}

_Refcount_Base& _Locale_impl::Init::_M_count() const {
  static _Refcount_Base _S_count(0);
  return _S_count;
}

_Locale_impl::_Locale_impl(const char* s)
  : _Refcount_Base(0), name(s), facets_vec() {
  facets_vec.reserve( locale::id::_S_max );
  new (&__Loc_init_buf) Init();
}

_Locale_impl::_Locale_impl( _Locale_impl const& locimpl )
  : _Refcount_Base(0), name(locimpl.name), facets_vec() {
  for_each( locimpl.facets_vec.begin(), locimpl.facets_vec.end(), _get_facet);
  facets_vec = locimpl.facets_vec;
  new (&__Loc_init_buf) Init();
}

_Locale_impl::_Locale_impl( size_t n, const char* s)
  : _Refcount_Base(0), name(s), facets_vec(n, 0) {
  new (&__Loc_init_buf) Init();
}

_Locale_impl::~_Locale_impl() {
  (&__Loc_init_buf)->~Init();
  for_each( facets_vec.begin(), facets_vec.end(), _release_facet);
}

// Initialization of the locale system.  This must be called before
// any locales are constructed.  (Meaning that it must be called when
// the I/O library itself is initialized.)
void _STLP_CALL _Locale_impl::_S_initialize() {
  _Stl_loc_assign_ids();
  make_classic_locale();
}

// Release of the classic locale ressources. Has to be called after the last
// locale destruction and not only after the classic locale destruction as
// the facets can be shared between different facets.
void _STLP_CALL _Locale_impl::_S_uninitialize() {
  //Not necessary anymore as classic facets are now 'normal' dynamically allocated
  //facets with a reference counter telling to _release_facet when the facet can be
  //deleted.
  //free_classic_locale();
}

// _Locale_impl non-inline member functions.
void _STLP_CALL _Locale_impl::_M_throw_bad_cast() {
  _STLP_THROW(bad_cast());
}

void _Locale_impl::insert( _Locale_impl *from, const locale::id& n ) {
  size_t index = n._M_index;
  if (index > 0 && index < from->size()) {
    this->insert( from->facets_vec[index], index);
  }
}

locale::facet* _Locale_impl::insert(locale::facet *f, size_t index) {
  if (f == 0 || index == 0)
    return 0;

  if (index >= facets_vec.size()) {
    facets_vec.resize(index + 1);
  }

  if (f != facets_vec[index])
  {
    _release_facet(facets_vec[index]);
    facets_vec[index] = _get_facet(f);
  }

  return f;
}

#if !defined (__DMC__)
_Locale_name_hint* _Locale_extract_hint(ctype_byname<char>* ct)
{ return _Locale_get_ctype_hint(ct->_M_ctype); }
_Locale_name_hint* _Locale_extract_hint(numpunct_byname<char>* punct)
{ return _Locale_get_numeric_hint(punct->_M_numeric); }
#  if defined (__GNUC__) && (__GNUC__ < 3)
template <class _Ch, class _InIt>
_Locale_name_hint* _Locale_time_extract_hint(time_get_byname<_Ch, _InIt>* tget)
#  else
_Locale_name_hint* _Locale_time_extract_hint(time_get_byname<char, istreambuf_iterator<char, char_traits<char> > >* tget)
#  endif
{ return _Locale_get_time_hint(tget->_M_time); }
_Locale_name_hint* _Locale_extract_hint(collate_byname<char>* coll)
{ return _Locale_get_collate_hint(coll->_M_collate); }
_Locale_name_hint* _Locale_extract_hint(moneypunct_byname<char, false>* money)
{ return _Locale_get_monetary_hint(money->_M_monetary); }
#endif

//
// <locale> content which is dependent on the name
//

template <class Facet>
static inline locale::facet* _Locale_insert(_Locale_impl *__that, Facet* f)
{ return __that->insert(f, Facet::id._M_index); }

/*
 * Six functions, one for each category.  Each of them takes a
 * _Locale* and a name, constructs that appropriate category
 * facets by name, and inserts them into the locale.
 */
_Locale_name_hint* _Locale_impl::insert_ctype_facets(const char* pname, _Locale_name_hint* hint) {
  char buf[_Locale_MAX_SIMPLE_NAME];
  _Locale_impl* i2 = locale::classic()._M_impl;

  if (pname == 0 || pname[0] == 0)
    pname = _Locale_ctype_default(buf);

  if (pname == 0 || pname[0] == 0 || is_C_locale_name(pname)) {
    this->insert(i2, ctype<char>::id);
#ifndef _STLP_NO_MBSTATE_T
    this->insert(i2, codecvt<char, char, mbstate_t>::id);
#endif
#ifndef _STLP_NO_WCHAR_T
    this->insert(i2, ctype<wchar_t>::id);
#  ifndef _STLP_NO_MBSTATE_T
    this->insert(i2, codecvt<wchar_t, char, mbstate_t>::id);
#  endif
#endif
  } else {
    ctype<char>*    ct                      = 0;
#ifndef _STLP_NO_MBSTATE_T
    codecvt<char, char, mbstate_t>*    cvt  = 0;
#endif
#ifndef _STLP_NO_WCHAR_T
    ctype<wchar_t>* wct                     = 0;
    codecvt<wchar_t, char, mbstate_t>* wcvt = 0;
#endif
    _STLP_TRY {
      ctype_byname<char> *ctbn = new ctype_byname<char>(pname, 0, hint);
      ct   = ctbn;
#if !defined (__DMC__)
      if (hint == 0) hint = _Locale_extract_hint(ctbn);
#endif
#ifndef _STLP_NO_MBSTATE_T
      cvt  = new codecvt_byname<char, char, mbstate_t>(pname);
#endif
#ifndef _STLP_NO_WCHAR_T
      wct  = new ctype_byname<wchar_t>(pname, 0, hint);
      wcvt = new codecvt_byname<wchar_t, char, mbstate_t>(pname, 0, hint);
#endif
    }

#ifndef _STLP_NO_WCHAR_T
#  ifdef _STLP_NO_MBSTATE_T
    _STLP_UNWIND(delete ct; delete wct; delete wcvt);
#  else
    _STLP_UNWIND(delete ct; delete wct; delete cvt; delete wcvt);
#  endif
#else
#  ifdef _STLP_NO_MBSTATE_T
    _STLP_UNWIND(delete ct);
#  else
    _STLP_UNWIND(delete ct; delete cvt);
#  endif
#endif
    _Locale_insert(this, ct);
#ifndef _STLP_NO_MBSTATE_T
    _Locale_insert(this, cvt);
#endif
#ifndef _STLP_NO_WCHAR_T
    _Locale_insert(this, wct);
    _Locale_insert(this, wcvt);
#endif
  }
  return hint;
}

_Locale_name_hint* _Locale_impl::insert_numeric_facets(const char* pname, _Locale_name_hint* hint) {
  _Locale_impl* i2 = locale::classic()._M_impl;

  numpunct<char>* punct = 0;
  num_get<char, istreambuf_iterator<char, char_traits<char> > > *get = 0;
  num_put<char, ostreambuf_iterator<char, char_traits<char> > > *put = 0;
#ifndef _STLP_NO_WCHAR_T
  numpunct<wchar_t>* wpunct = 0;
  num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wget = 0;
  num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wput = 0;
#endif

  char buf[_Locale_MAX_SIMPLE_NAME];
  if (pname == 0 || pname[0] == 0)
    pname = _Locale_numeric_default(buf);

  if (pname == 0 || pname[0] == 0 || is_C_locale_name(pname)) {
    this->insert(i2, numpunct<char>::id);
    this->insert(i2,
                 num_put<char, ostreambuf_iterator<char, char_traits<char> >  >::id);
    this->insert(i2,
                 num_get<char, istreambuf_iterator<char, char_traits<char> > >::id);
#ifndef _STLP_NO_WCHAR_T
    this->insert(i2, numpunct<wchar_t>::id);
    this->insert(i2,
                 num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> >  >::id);
    this->insert(i2,
                 num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
#endif
  }
  else {
    _STLP_TRY {
      numpunct_byname<char> *punctbn = new numpunct_byname<char>(pname, 0, hint);
      punct  = punctbn;
#if !defined (__DMC__)
      if (hint == 0) hint = _Locale_extract_hint(punctbn);
#endif
      get    = new num_get<char, istreambuf_iterator<char, char_traits<char> > >;
      put    = new num_put<char, ostreambuf_iterator<char, char_traits<char> > >;
#ifndef _STLP_NO_WCHAR_T
      wpunct = new numpunct_byname<wchar_t>(pname, 0, hint);
      wget   = new num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >;
      wput   = new num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >;
#endif
    }
#ifndef _STLP_NO_WCHAR_T
    _STLP_UNWIND(delete punct; delete wpunct; delete get; delete wget; delete put; delete wput);
#else
    _STLP_UNWIND(delete punct; delete get;delete put);
#endif

    _Locale_insert(this,punct);
    _Locale_insert(this,get);
    _Locale_insert(this,put);

#ifndef _STLP_NO_WCHAR_T
    _Locale_insert(this,wpunct);
    _Locale_insert(this,wget);
    _Locale_insert(this,wput);
#endif
  }
  return hint;
}

_Locale_name_hint* _Locale_impl::insert_time_facets(const char* pname, _Locale_name_hint* hint) {
  _Locale_impl* i2 = locale::classic()._M_impl;
  time_get<char, istreambuf_iterator<char, char_traits<char> > > *get = 0;
  time_put<char, ostreambuf_iterator<char, char_traits<char> > > *put = 0;
#ifndef _STLP_NO_WCHAR_T
  time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wget = 0;
  time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wput = 0;
#endif

  char buf[_Locale_MAX_SIMPLE_NAME];
  if (pname == 0 || pname[0] == 0)
    pname = _Locale_time_default(buf);

  if (pname == 0 || pname[0] == 0 || is_C_locale_name(pname)) {

    this->insert(i2,
                 time_get<char, istreambuf_iterator<char, char_traits<char> > >::id);
    this->insert(i2,
                 time_put<char, ostreambuf_iterator<char, char_traits<char> > >::id);
#ifndef _STLP_NO_WCHAR_T
    this->insert(i2,
                 time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
    this->insert(i2,
                 time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
#endif
  } else {
    _STLP_TRY {
      time_get_byname<char, istreambuf_iterator<char, char_traits<char> > > *getbn =
        new time_get_byname<char, istreambuf_iterator<char, char_traits<char> > >(pname, 0, hint);
      get  = getbn;
#if !defined (__DMC__)
      if (hint == 0) hint = _Locale_time_extract_hint(getbn);
#endif
      put  = new time_put_byname<char, ostreambuf_iterator<char, char_traits<char> > >(pname, 0, hint);
#ifndef _STLP_NO_WCHAR_T
      wget = new time_get_byname<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >(pname, 0, hint);
      wput = new time_put_byname<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >(pname, 0, hint);
#endif
    }
#ifndef _STLP_NO_WCHAR_T
    _STLP_UNWIND(delete get; delete wget; delete put; delete wput);
#else
    _STLP_UNWIND(delete get; delete put);
#endif
    _Locale_insert(this,get);
    _Locale_insert(this,put);
#ifndef _STLP_NO_WCHAR_T
    _Locale_insert(this,wget);
    _Locale_insert(this,wput);
#endif
  }
  return hint;
}

_Locale_name_hint* _Locale_impl::insert_collate_facets(const char* nam, _Locale_name_hint* hint) {
  _Locale_impl* i2 = locale::classic()._M_impl;

  collate<char> *col = 0;
#ifndef _STLP_NO_WCHAR_T
  collate<wchar_t> *wcol = 0;
#endif

  char buf[_Locale_MAX_SIMPLE_NAME];
  if (nam == 0 || nam[0] == 0)
    nam = _Locale_collate_default(buf);

  if (nam == 0 || nam[0] == 0 || is_C_locale_name(nam)) {
    this->insert(i2, collate<char>::id);
#ifndef _STLP_NO_WCHAR_T
    this->insert(i2, collate<wchar_t>::id);
#endif
  }
  else {
    _STLP_TRY {
      collate_byname<char> *colbn = new collate_byname<char>(nam, 0, hint);
      col   = colbn;
#if !defined (__DMC__)
      if (hint == 0) hint = _Locale_extract_hint(colbn);
#endif
#ifndef _STLP_NO_WCHAR_T
      wcol  = new collate_byname<wchar_t>(nam, 0, hint);
#endif
    }
#ifndef _STLP_NO_WCHAR_T
    _STLP_UNWIND(delete col; delete wcol);
#else
    _STLP_UNWIND(delete col);
#endif
    _Locale_insert(this,col);
#ifndef _STLP_NO_WCHAR_T
    _Locale_insert(this,wcol);
#endif
  }
  return hint;
}

_Locale_name_hint* _Locale_impl::insert_monetary_facets(const char* pname, _Locale_name_hint* hint) {
  _Locale_impl* i2 = locale::classic()._M_impl;

  moneypunct<char, false> *punct = 0;
  moneypunct<char, true> *ipunct = 0;
  money_get<char, istreambuf_iterator<char, char_traits<char> > > *get = 0;
  money_put<char, ostreambuf_iterator<char, char_traits<char> > > *put = 0;

#ifndef _STLP_NO_WCHAR_T
  moneypunct<wchar_t, false>* wpunct = 0;
  moneypunct<wchar_t, true>* wipunct = 0;
  money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wget = 0;
  money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > > *wput = 0;
#endif