c_locale_glibc2.c

使用QT为linux 下的mplayer写的一个新的gui

#include <locale.h>
#include <langinfo.h>

#include <stl/c_locale.h>
#include <stdio.h>
#include <wctype.h>
#include <string.h>

#include <stdint.h>

/* Structure describing locale data in core for a category.  */
/* GLIBC internal, see <glibc catalog>/locale/localeinfo.h */
#if (__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ > 2))

/* GLIBC 2.3.x */
struct locale_data
{
  const char *name;
  const char *filedata;         /* Region mapping the file data.  */
  off_t filesize;               /* Size of the file (and the region).  */
  enum                          /* Flavor of storage used for those.  */
  {
    ld_malloced,                /* Both are malloc'd.  */
    ld_mapped,                  /* name is malloc'd, filedata mmap'd */
    ld_archive                  /* Both point into mmap'd archive regions.  */
  } alloc;

  /* This provides a slot for category-specific code to cache data computed
   * about this locale.  That code can set a cleanup function to deallocate
   * the data.
  struct
  {
    void (*cleanup) (struct locale_data *);
    union
    {
      void *data;
      struct lc_time_data *time;
      const struct gconv_fcts *ctype;
    };
  } private;
   */

  unsigned int usage_count;     /* Counter for users.  */

  int use_translit;             /* Nonzero if the mb*towv*() and wc*tomb()
                                   functions should use transliteration.  */

  unsigned int nstrings;        /* Number of strings below.  */
  union locale_data_value
  {
    const uint32_t *wstr;
    const char *string;
    unsigned int word;          /* Note endian issues vs 64-bit pointers.  */
  }
  values[1];     /* Items, usually pointers into `filedata'.  */
};

#else /* GLIBC 2.2.x */

struct locale_data
{
  const char *name;
  const char *filedata;         /* Region mapping the file data.  */
  off_t filesize;               /* Size of the file (and the region).  */
  int mmaped;                   /* If nonzero the data is mmaped.  */

  unsigned int usage_count;     /* Counter for users.  */

  int use_translit;             /* Nonzero if the mb*towv*() and wc*tomb()
                                   functions should use transliteration.  */
  const char *options;          /* Extra options from the locale name,
                                   not used in the path to the locale data.  */

  unsigned int nstrings;        /* Number of strings below.  */
  union locale_data_value
  {
    const uint32_t *wstr;
    const char *string;
    unsigned int word;
  }
  values[1];     /* Items, usually pointers into `filedata'.  */
};

#endif


typedef __locale_t __c_locale;

#if (__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ > 2))
# define __nl_langinfo_l nl_langinfo_l
#endif

#if (__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ > 2))
#  define __LOCALE_CREATE(nm,category) (void*)newlocale(1 << category, nm, NULL )
#  define __LOCALE_DESTROY(__loc)      freelocale((__c_locale)__loc)
#else
#  define __LOCALE_CREATE(nm,category) (void*)__newlocale(1 << category, nm, NULL )
#  define __LOCALE_DESTROY(__loc)      __freelocale((__c_locale)__loc)
#endif

static const char *_empty_str = "";
static const char *_C_name = "C";


#if 0
struct _Locale_ctype
{
  __c_locale __cloc;
};

struct _Locale_numeric
{
  __c_locale __cloc;
};

struct _Locale_time
{
  __c_locale __cloc;
};

struct _Locale_collate
{
  __c_locale __cloc;
};

struct _Locale_monetary
{
  __c_locale __cloc;
};

struct _Locale_messages
{
  __c_locale __cloc;
};
#endif

void _Locale_init()
{}

void _Locale_final()
{}

void *_Locale_ctype_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_CTYPE ); }

void* _Locale_numeric_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_NUMERIC ); }

void* _Locale_time_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_TIME ); }

void *_Locale_collate_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_COLLATE ); }

void *_Locale_monetary_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_MONETARY ); }

void *_Locale_messages_create( const char *nm, struct _Locale_name_hint* hint )
{ return __LOCALE_CREATE( nm, LC_MESSAGES ); }

/*
  try to see locale category LC should be used from environment;
  according POSIX, the order is
  1. LC_ALL
  2. category (LC_CTYPE, LC_NUMERIC, ... )
  3. LANG
  If set nothing, return "C" (this really implemetation-specific).
*/
const char *_Locale_aux_default( const char *LC, char *nm )
{
  char *name = getenv( "LC_ALL" );

  if ( name != NULL && *name != 0 ) {
    return strncpy( nm, name, _Locale_MAX_SIMPLE_NAME );
  }
  name = getenv( LC );
  if ( name != NULL && *name != 0 ) {
    return strncpy( nm, name, _Locale_MAX_SIMPLE_NAME );
  }
  name = getenv( "LANG" );
  if ( name != NULL && *name != 0 ) {
    return strncpy( nm, name, _Locale_MAX_SIMPLE_NAME );
  }

  return strcpy( nm, "C" );
}

const char *_Locale_ctype_default( char *nm )
{
  return _Locale_aux_default( "LC_CTYPE", nm );
}

const char *_Locale_numeric_default( char *nm )
{
  return _Locale_aux_default( "LC_NUMERIC", nm );
}

const char *_Locale_time_default( char *nm )
{
  return _Locale_aux_default( "LC_TIME", nm );
}

const char *_Locale_collate_default( char *nm )
{
  return _Locale_aux_default( "LC_COLLATE", nm );
}

const char *_Locale_monetary_default( char *nm )
{
  return _Locale_aux_default( "LC_MONETARY", nm );
}

const char *_Locale_messages_default( char *nm )
{
  return _Locale_aux_default( "LC_MESSAGES", nm );
}

char const*_Locale_ctype_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_CTYPE]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

char const*_Locale_numeric_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_NUMERIC]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

char const*_Locale_time_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_TIME]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

char const*_Locale_collate_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_COLLATE]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

char const*_Locale_monetary_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_MONETARY]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

char const*_Locale_messages_name( const void *__loc, char *buf )
{
  return __loc != 0 ? strncpy( buf, ((__c_locale)__loc)->__locales[LC_MESSAGES]->name, _Locale_MAX_SIMPLE_NAME ) : 0;
}

void _Locale_ctype_destroy( void *__loc )
{ __LOCALE_DESTROY(__loc); }

void _Locale_numeric_destroy( void *__loc )
{ __LOCALE_DESTROY(__loc); }

void _Locale_time_destroy( void *__loc )
{ __LOCALE_DESTROY(__loc); }

void _Locale_collate_destroy( void *__loc )
{ __LOCALE_DESTROY(__loc); }

void _Locale_monetary_destroy( void *__loc )
{ __LOCALE_DESTROY(__loc); }

void _Locale_messages_destroy( void* __loc )
{ __LOCALE_DESTROY(__loc); }

/*
 * locale loc expected either locale name indeed (platform-specific)
 * or string like "LC_CTYPE=LocaleNameForCType;LC_NUMERIC=LocaleNameForNum;"
 *
 */

char const*__Extract_locale_name( const char *loc, const char *category, char *buf )
{
  char *expr;
  size_t len_name;
  buf[0] = 0;

  if( loc[0]=='L' && loc[1]=='C' && loc[2]=='_') {
    expr = strstr( (char*)loc, category );
    if ( expr == NULL )
      return NULL; /* Category not found. */
    ++expr;
    len_name = strcspn( expr, ";" );
    len_name = len_name >= _Locale_MAX_SIMPLE_NAME ? _Locale_MAX_SIMPLE_NAME - 1: len_name;
    strncpy( buf, expr, len_name );
    buf[len_name] = 0;
    return buf;
  }
  return strncpy( buf, loc, _Locale_MAX_SIMPLE_NAME );
}

char const*_Locale_extract_ctype_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_CTYPE=", buf ); }

char const*_Locale_extract_numeric_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_NUMERIC=", buf ); }

char const*_Locale_extract_time_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_TIME=", buf ); }

char const*_Locale_extract_collate_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_COLLATE=", buf ); }

char const*_Locale_extract_monetary_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_MONETARY=", buf ); }

char const*_Locale_extract_messages_name( const char *loc, char *buf, struct _Locale_name_hint* hint )
{ return __Extract_locale_name( loc, "LC_MESSAGES=", buf ); }

char const*_Locale_compose_name(char*__DUMMY_PAR1, const char*__DUMMY_PAR2, const char*__DUMMY_PAR3,
                            const char*__DUMMY_PAR4,
                            const char*__DUMMY_PAR5, const char*__DUMMY_PAR6, const char*__DUMMY_PAR7, const char*__DUMMY_PAR8) {
  /* TODO: what's this? Is this a marker that this is not yet completely
  implemented? Copy the implementation from c_locale_win32 perhaps? It seems
  to complement the extract functions above. */
  printf( "%s:%d\n", __FILE__, __LINE__ );
  return 0;
}

struct _Locale_name_hint* _Locale_get_ctype_hint(struct _Locale_ctype* ctype)
{ return 0; }
struct _Locale_name_hint* _Locale_get_numeric_hint(struct _Locale_numeric* numeric)
{ return 0; }
struct _Locale_name_hint* _Locale_get_time_hint(struct _Locale_time* time)
{ return 0; }
struct _Locale_name_hint* _Locale_get_collate_hint(struct _Locale_collate* collate)
{ return 0; }
struct _Locale_name_hint* _Locale_get_monetary_hint(struct _Locale_monetary* monetary)
{ return 0; }
struct _Locale_name_hint* _Locale_get_messages_hint(struct _Locale_messages* messages)
{ return 0; }

/* ctype */

const _Locale_mask_t *_Locale_ctype_table( struct _Locale_ctype *__loc )
{
  /* return table with masks (upper, lower, alpha, etc.) */
  /* return ((__c_locale)__loc)->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_CLASS)].string + 128; */
  return ((__c_locale)__loc)->__ctype_b;
}

int _Locale_toupper( struct _Locale_ctype *__loc, int c )
{ return ((__c_locale)__loc)->__ctype_toupper[c]; }

int _Locale_tolower( struct _Locale_ctype *__loc, int c )
{ return ((__c_locale)__loc)->__ctype_tolower[c]; }

#if !defined (_STLP_NO_WCHAR_T)
_Locale_mask_t _Locale_wchar_ctype(struct _Locale_ctype*__DUMMY_PAR1, wint_t __DUMMY_PAR2, _Locale_mask_t __DUMMY_PAR3) {
  printf( "%s:%d\n", __FILE__, __LINE__ );
  return 0;
}

wint_t _Locale_wchar_tolower( struct _Locale_ctype *__loc, wint_t c ) {
  printf( "%s:%d\n", __FILE__, __LINE__ );
  return __towlower_l( c, ((__c_locale)__loc) );
}

wint_t _Locale_wchar_toupper( struct _Locale_ctype *__loc, wint_t c ) {
  printf( "%s:%d\n", __FILE__, __LINE__ );
  return __towupper_l( c, ((__c_locale)__loc) );
}
#endif