/*****************************************************************************
- * unicode.c: UTF8 <-> locale functions
+ * unicode.c: Unicode <-> locale functions
*****************************************************************************
- * Copyright (C) 2005 the VideoLAN team
+ * Copyright (C) 2005-2006 the VideoLAN team
* $Id$
*
* Authors: Rémi Denis-Courmont <rem # videolan.org>
*
+ * UTF16toUTF8() adapted from Perl 5 (also GPL'd)
+ * Copyright (C) 1998-2002, Larry Wall
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
#include <vlc/vlc.h>
#include "charset.h"
-/*****************************************************************************
- * EnsureUTF8: replaces invalid/overlong UTF-8 sequences with question marks
- *****************************************************************************
- * Not Todo : convert Latin1 to UTF-8 on the flu
- * It is not possible given UTF-8 needs more space
- *****************************************************************************/
+#include <assert.h>
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/types.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
+#ifdef UNDER_CE
+# include <tchar.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+
+#ifndef HAVE_LSTAT
+# define lstat( a, b ) stat(a, b)
+#endif
+
+#ifdef __APPLE__
+/* Define this if the OS always use UTF-8 internally */
+# define ASSUME_UTF8 1
+#endif
+
+#ifndef ASSUME_UTF8
+# if defined (HAVE_ICONV)
+/* libiconv is more powerful than Win32 API (it has translit) */
+# define USE_ICONV 1
+# elif defined (WIN32) || defined (UNDER_CE)
+# define USE_MB2MB 1
+# else
+# error No UTF8 charset conversion implemented on this platform!
+# endif
+#endif
+
+#ifdef USE_ICONV
+static struct {
+ vlc_iconv_t hd;
+ vlc_mutex_t lock;
+} from_locale, to_locale;
+#endif
+
+void LocaleInit( vlc_object_t *p_this )
+{
+#ifdef USE_ICONV
+ char *psz_charset;
+
+ if( vlc_current_charset( &psz_charset ) )
+ /* UTF-8 */
+ from_locale.hd = to_locale.hd = (vlc_iconv_t)(-1);
+ else
+ {
+ /* not UTF-8 */
+ char psz_buf[strlen( psz_charset ) + sizeof( "//translit" )];
+ const char *psz_conv;
+
+ /*
+ * Still allow non-ASCII characters when the locale is not set.
+ * Western Europeans are being favored for historical reasons.
+ */
+ if( strcmp( psz_charset, "ASCII" ) )
+ {
+ sprintf( psz_buf, "%s//translit", psz_charset );
+ psz_conv = psz_buf;
+ }
+ else
+ psz_conv = "ISO-8859-1//translit";
+
+ vlc_mutex_init( p_this, &from_locale.lock );
+ vlc_mutex_init( p_this, &to_locale.lock );
+ from_locale.hd = vlc_iconv_open( "UTF-8", psz_conv );
+ to_locale.hd = vlc_iconv_open( psz_conv, "UTF-8" );
+ }
+
+ free( psz_charset );
+
+ assert( (from_locale.hd == (vlc_iconv_t)(-1))
+ == (to_locale.hd == (vlc_iconv_t)(-1)) );
+#else
+ (void)p_this;
+#endif
+}
+
+void LocaleDeinit( void )
+{
+#ifdef USE_ICONV
+ if( to_locale.hd != (vlc_iconv_t)(-1) )
+ {
+ vlc_iconv_close( to_locale.hd );
+ vlc_mutex_destroy( &to_locale.lock );
+ }
+
+ if( from_locale.hd != (vlc_iconv_t)(-1) )
+ {
+ vlc_iconv_close( from_locale.hd );
+ vlc_mutex_destroy( &from_locale.lock );
+ }
+#endif
+}
+
+#ifdef USE_MB2MB
+static char *MB2MB( const char *string, UINT fromCP, UINT toCP )
+{
+ char *out;
+ wchar_t *wide;
+ int len;
+
+ len = MultiByteToWideChar( fromCP, 0, string, -1, NULL, 0 );
+ if( len == 0 )
+ return NULL;
+
+ wchar_t wide[len];
+
+ MultiByteToWideChar( fromCP, 0, string, -1, wide, len );
+ len = WideCharToMultiByte( toCP, 0, wide, -1, NULL, 0, NULL, NULL );
+ if( len == 0 )
+ return NULL;
+ out = malloc( len );
+
+ WideCharToMultiByte( toCP, 0, wide, -1, out, len, NULL, NULL );
+ return out;
+}
+#endif
+
+/**
+ * FromLocale: converts a locale string to UTF-8
+ *
+ * @param locale nul-terminated string to be converted
+ *
+ * @return a nul-terminated UTF-8 string, or NULL in case of error.
+ * To avoid memory leak, you have to pass the result to LocaleFree()
+ * when it is no longer needed.
+ */
+char *FromLocale( const char *locale )
+{
+ if( locale == NULL )
+ return NULL;
+
+#ifndef USE_MB2MB
+# ifdef USE_ICONV
+ if( from_locale.hd != (vlc_iconv_t)(-1) )
+ {
+ const char *iptr = locale;
+ size_t inb = strlen( locale );
+ size_t outb = inb * 6 + 1;
+ char output[outb], *optr = output;
+
+ vlc_mutex_lock( &from_locale.lock );
+ vlc_iconv( from_locale.hd, NULL, NULL, NULL, NULL );
+
+ while( vlc_iconv( from_locale.hd, &iptr, &inb, &optr, &outb )
+ == (size_t)-1 )
+ {
+ *optr++ = '?';
+ outb--;
+ iptr++;
+ inb--;
+ vlc_iconv( from_locale.hd, NULL, NULL, NULL, NULL );
+ }
+ vlc_mutex_unlock( &from_locale.lock );
+ *optr = '\0';
+
+ assert (inb == 0);
+ assert (*iptr == '\0');
+ assert (*optr == '\0');
+ assert (strlen( output ) == (size_t)(optr - output));
+ return strdup( output );
+ }
+# endif /* USE_ICONV */
+ return (char *)locale;
+#else /* MB2MB */
+ return MB2MB( locale, CP_ACP, CP_UTF8 );
+#endif
+}
+
+char *FromLocaleDup( const char *locale )
+{
+#if defined (ASSUME_UTF8)
+ return strdup( locale );
+#else
+# ifdef USE_ICONV
+ if (from_locale.hd == (vlc_iconv_t)(-1))
+ return strdup( locale );
+# endif
+ return FromLocale( locale );
+#endif
+}
+
+
+/**
+ * ToLocale: converts a UTF-8 string to local system encoding.
+ *
+ * @param utf8 nul-terminated string to be converted
+ *
+ * @return a nul-terminated string, or NULL in case of error.
+ * To avoid memory leak, you have to pass the result to LocaleFree()
+ * when it is no longer needed.
+ */
+char *ToLocale( const char *utf8 )
+{
+ if( utf8 == NULL )
+ return NULL;
+
+#ifndef USE_MB2MB
+# ifdef USE_ICONV
+ if( to_locale.hd != (vlc_iconv_t)(-1) )
+ {
+ const char *iptr = utf8;
+ size_t inb = strlen( utf8 );
+ /* FIXME: I'm not sure about the value for the multiplication
+ * (for western people, multiplication is not needed) */
+ size_t outb = inb * 2 + 1;
+
+ char output[outb], *optr = output;
+
+ vlc_mutex_lock( &to_locale.lock );
+ vlc_iconv( to_locale.hd, NULL, NULL, NULL, NULL );
+
+ while( vlc_iconv( to_locale.hd, &iptr, &inb, &optr, &outb )
+ == (size_t)-1 )
+ {
+ *optr++ = '?'; /* should not happen, and yes, it sucks */
+ outb--;
+ iptr++;
+ inb--;
+ vlc_iconv( to_locale.hd, NULL, NULL, NULL, NULL );
+ }
+ vlc_mutex_unlock( &to_locale.lock );
+ *optr = '\0';
+
+ assert (inb == 0);
+ assert (*iptr == '\0');
+ assert (*optr == '\0');
+ assert (strlen( output ) == (size_t)(optr - output));
+ return strdup( output );
+ }
+# endif /* USE_ICONV */
+ return (char *)utf8;
+#else /* MB2MB */
+ return MB2MB( utf8, CP_UTF8, CP_ACP );
+#endif
+}
+
+char *ToLocaleDup( const char *utf8 )
+{
+#if defined (ASSUME_UTF8)
+ return strdup( utf8 );
+#else
+# ifdef USE_ICONV
+ if (to_locale.hd == (vlc_iconv_t)(-1))
+ return strdup( utf8 );
+# endif
+ return ToLocale( utf8 );
+#endif
+}
+
+void LocaleFree( const char *str )
+{
+#ifdef USE_ICONV
+ if( to_locale.hd == (vlc_iconv_t)(-1) )
+ return;
+#endif
+
+#ifndef ASSUME_UTF8
+ if( str != NULL )
+ free( (char *)str );
+#endif
+}
+
+/**
+ * utf8_fopen: Calls fopen() after conversion of file name to OS locale
+ */
+FILE *utf8_fopen( const char *filename, const char *mode )
+{
+#if defined (WIN32) || defined (UNDER_CE)
+ if( GetVersion() < 0x80000000 )
+ {
+ /* for Windows NT and above */
+ wchar_t wpath[MAX_PATH + 1];
+ size_t len = strlen( mode ) + 1;
+ wchar_t wmode[len];
+
+ if( !MultiByteToWideChar( CP_UTF8, 0, filename, -1, wpath, MAX_PATH )
+ || !MultiByteToWideChar( CP_ACP, 0, mode, len, wmode, len ) )
+ {
+ errno = ENOENT;
+ return NULL;
+ }
+ wpath[MAX_PATH] = L'\0';
+
+ /*
+ * fopen() cannot open files with non-“ANSI” characters on Windows.
+ * We use _wfopen() instead. Same thing for mkdir() and stat().
+ */
+ return _wfopen( wpath, wmode );
+ }
+#endif
+ const char *local_name = ToLocale( filename );
+
+ if( local_name != NULL )
+ {
+ FILE *stream = fopen( local_name, mode );
+ LocaleFree( local_name );
+ return stream;
+ }
+ else
+ errno = ENOENT;
+
+ return NULL;
+}
+
+/**
+ * utf8_mkdir: Calls mkdir() after conversion of file name to OS locale
+ */
+int utf8_mkdir( const char *dirname )
+{
+#if defined (UNDER_CE) || defined (WIN32)
+ wchar_t wname[MAX_PATH + 1];
+ char mod[MAX_PATH + 1];
+ int i;
+
+ /* Convert '/' into '\' */
+ for( i = 0; *dirname; i++ )
+ {
+ if( i == MAX_PATH )
+ return -1; /* overflow */
+
+ if( *dirname == '/' )
+ mod[i] = '\\';
+ else
+ mod[i] = *dirname;
+ dirname++;
+
+ }
+ mod[i] = 0;
+
+ if( MultiByteToWideChar( CP_UTF8, 0, mod, -1, wname, MAX_PATH ) == 0 )
+ {
+ errno = ENOENT;
+ return -1;
+ }
+ wname[MAX_PATH] = L'\0';
+
+ if( CreateDirectoryW( wname, NULL ) == 0 )
+ {
+ if( GetLastError( ) == ERROR_ALREADY_EXISTS )
+ errno = EEXIST;
+ else
+ errno = ENOENT;
+ return -1;
+ }
+ return 0;
+#else
+ char *locname = ToLocale( dirname );
+ int res;
+
+ if( locname == NULL )
+ {
+ errno = ENOENT;
+ return -1;
+ }
+ res = mkdir( locname, 0755 );
+
+ LocaleFree( locname );
+ return res;
+#endif
+}
+
+
+void *utf8_opendir( const char *dirname )
+{
+ /* TODO: support for WinNT non-ACP filenames */
+ const char *local_name = ToLocale( dirname );
+
+ if( local_name != NULL )
+ {
+ DIR *dir = vlc_opendir_wrapper( local_name );
+ LocaleFree( local_name );
+ return dir;
+ }
+ else
+ errno = ENOENT;
+ return NULL;
+}
+
+const char *utf8_readdir( void *dir )
+{
+ struct dirent *ent;
+
+ ent = vlc_readdir_wrapper( (DIR *)dir );
+ if( ent == NULL )
+ return NULL;
+
+ return FromLocale( ent->d_name );
+}
+
+static int dummy_select( const char *str )
+{
+ (void)str;
+ return 1;
+}
+
+int utf8_scandir( const char *dirname, char ***namelist,
+ int (*select)( const char * ),
+ int (*compar)( const char **, const char ** ) )
+{
+ DIR *dir = utf8_opendir( dirname );
+
+ if( select == NULL )
+ select = dummy_select;
+
+ if( dir == NULL )
+ return -1;
+ else
+ {
+ char **tab = NULL;
+ const char *entry;
+ unsigned num = 0;
+
+ while( ( entry = utf8_readdir( dir ) ) != NULL )
+ {
+ char **newtab;
+ char *utf_entry = strdup( entry );
+ LocaleFree( entry );
+ if( utf_entry == NULL )
+ goto error;
+
+ if( !select( utf_entry ) )
+ {
+ free( utf_entry );
+ continue;
+ }
+
+ newtab = realloc( tab, sizeof( char * ) * (num + 1) );
+ if( newtab == NULL )
+ {
+ free( utf_entry );
+ goto error;
+ }
+ tab = newtab;
+ tab[num++] = utf_entry;
+ }
+ vlc_closedir_wrapper( dir );
+
+ if( compar != NULL )
+ qsort( tab, num, sizeof( tab[0] ),
+ (int (*)( const void *, const void *))compar );
+
+ *namelist = tab;
+ return num;
+
+ error:{
+ unsigned i;
+
+ for( i = 0; i < num; i++ )
+ free( tab[i] );
+ if( tab != NULL )
+ free( tab );
+ return -1;}
+ }
+}
+
+
+static int utf8_statEx( const char *filename, void *buf,
+ vlc_bool_t deref )
+{
+#if defined (WIN32) || defined (UNDER_CE)
+ /* retrieve Windows OS version */
+ if( GetVersion() < 0x80000000 )
+ {
+ /* for Windows NT and above */
+ wchar_t wpath[MAX_PATH + 1];
+
+ if( !MultiByteToWideChar( CP_UTF8, 0, filename, -1, wpath, MAX_PATH ) )
+ {
+ errno = ENOENT;
+ return -1;
+ }
+ wpath[MAX_PATH] = L'\0';
+
+ return _wstati64( wpath, (struct _stati64 *)buf );
+ }
+#endif
+#ifdef HAVE_SYS_STAT_H
+ const char *local_name = ToLocale( filename );
+
+ if( local_name != NULL )
+ {
+ int res = deref ? stat( local_name, (struct stat *)buf )
+ : lstat( local_name, (struct stat *)buf );
+ LocaleFree( local_name );
+ return res;
+ }
+ errno = ENOENT;
+#endif
+ return -1;
+}
+
+
+int utf8_stat( const char *filename, void *buf)
+{
+ return utf8_statEx( filename, buf, VLC_TRUE );
+}
+
+int utf8_lstat( const char *filename, void *buf)
+{
+ return utf8_statEx( filename, buf, VLC_FALSE );
+}
+
+/**
+ * utf8_*printf: *printf with conversion from UTF-8 to local encoding
+ */
+static int utf8_vasprintf( char **str, const char *fmt, va_list ap )
+{
+ char *utf8;
+ int res = vasprintf( &utf8, fmt, ap );
+ if( res == -1 )
+ return -1;
+
+ *str = ToLocaleDup( utf8 );
+ free( utf8 );
+ return res;
+}
+
+int utf8_vfprintf( FILE *stream, const char *fmt, va_list ap )
+{
+ char *str;
+ int res = utf8_vasprintf( &str, fmt, ap );
+ if( res == -1 )
+ return -1;
+
+ fputs( str, stream );
+ free( str );
+ return res;
+}
+
+int utf8_fprintf( FILE *stream, const char *fmt, ... )
+{
+ va_list ap;
+ int res;
+
+ va_start( ap, fmt );
+ res = utf8_vfprintf( stream, fmt, ap );
+ va_end( ap );
+ return res;
+}
+
+
+static char *CheckUTF8( char *str, char rep )
#define isutf8cont( c ) (((c) >= 0x80) && ((c) <= 0xBF))
-char *EnsureUTF8( char *str )
{
unsigned char *ptr, c;
+ assert (str != NULL);
+
ptr = (unsigned char *)str;
while( (c = *ptr) != '\0' )
{
/* US-ASCII, 1 byte */
- if( ( ( c >= 0x20 ) && ( c <= 0x7F ) )
- || ( c == 0x09 ) || ( c == 0x0A ) || ( c == 0x0D ) )
- {
+ if( c <= 0x7F )
ptr++; /* OK */
- }
else
/* 2 bytes */
if( ( c >= 0xC2 ) && ( c <= 0xDF ) )
if( isutf8cont( c ) )
ptr += 2; /* OK */
else
- *ptr++ = '?'; /* invalid */
+ goto error;
}
else
/* 3 bytes */
if( isutf8cont( c ) )
ptr += 3; /* OK */
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
if( ( ( c >= 0xE1 ) && ( c <= 0xEC ) ) || ( c == 0xEC )
if( isutf8cont( c ) )
ptr += 3; /* OK */
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
if( c == 0xED )
if( isutf8cont( c ) )
ptr += 3; /* OK */
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
/* 4 bytes */
if( isutf8cont( c ) )
ptr += 4; /* OK */
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
if( ( c >= 0xF1 ) && ( c <= 0xF3 ) )
c = ptr[3];
if( isutf8cont( c ) )
ptr += 4; /* OK */
- else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
if( c == 0xF4 )
if( isutf8cont( c ) )
ptr += 4; /* OK */
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
}
else
- *ptr++ = '?';
+ goto error;
+
+ continue;
+
+error:
+ if( rep == 0 )
+ return NULL;
+ *ptr++ = '?';
+ str = NULL;
}
return str;
}
+
+/**
+ * EnsureUTF8: replaces invalid/overlong UTF-8 sequences with question marks
+ * Note that it is not possible to convert from Latin-1 to UTF-8 on the fly,
+ * so we don't try that, even though it would be less disruptive.
+ *
+ * @return str if it was valid UTF-8, NULL if not.
+ */
+char *EnsureUTF8( char *str )
+{
+ return CheckUTF8( str, '?' );
+}
+
+
+/**
+ * IsUTF8: checks whether a string is a valid UTF-8 byte sequence.
+ *
+ * @param str nul-terminated string to be checked
+ *
+ * @return str if it was valid UTF-8, NULL if not.
+ */
+const char *IsUTF8( const char *str )
+{
+ return CheckUTF8( (char *)str, 0 );
+}
+
+
+/**
+ * UTF32toUTF8(): converts an array from UTF-32 (host byte order)
+ * to UTF-8.
+ *
+ * @param src the UTF-32 table to be converted
+ * @param len the number of code points to be converted from src
+ * (ie. the number of uint32_t in the table pointed to by src)
+ * @param newlen an optional pointer. If not NULL, *newlen will
+ * contain the total number of bytes written.
+ *
+ * @return the result of the conversion (must be free'd())
+ * or NULL on error (in that case, *newlen is undefined).
+ */
+static char *
+UTF32toUTF8( const uint32_t *src, size_t len, size_t *newlen )
+{
+ char *res, *out;
+
+ /* allocate memory */
+ out = res = (char *)malloc( 6 * len );
+ if( res == NULL )
+ return NULL;
+
+ while( len > 0 )
+ {
+ uint32_t uv = *src++;
+ len--;
+
+ if( uv < 0x80 )
+ {
+ *out++ = uv;
+ continue;
+ }
+ else
+ if( uv < 0x800 )
+ {
+ *out++ = (( uv >> 6) | 0xc0);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ else
+ if( uv < 0x10000 )
+ {
+ *out++ = (( uv >> 12) | 0xe0);
+ *out++ = (((uv >> 6) & 0x3f) | 0x80);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ else
+ if( uv < 0x110000 )
+ {
+ *out++ = (( uv >> 18) | 0xf0);
+ *out++ = (((uv >> 12) & 0x3f) | 0x80);
+ *out++ = (((uv >> 6) & 0x3f) | 0x80);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ else
+ {
+ free( res );
+ return NULL;
+ }
+ }
+ len = out - res;
+ res = realloc( res, len );
+ if( newlen != NULL )
+ *newlen = len;
+ return res;
+}
+
+/**
+ * FromUTF32(): converts an UTF-32 string to UTF-8.
+ *
+ * @param src UTF-32 bytes sequence, aligned on a 32-bits boundary.
+ *
+ * @return the result of the conversion (must be free()'d),
+ * or NULL in case of error.
+ */
+char *FromUTF32( const uint32_t *src )
+{
+ const uint32_t *in;
+ size_t len;
+
+ /* determine the size of the string */
+ for( len = 1, in = src; *in; len++ )
+ in++;
+
+ return UTF32toUTF8( src, len, NULL );
+}
+
+/**
+ * UTF16toUTF8: converts UTF-16 (host byte order) to UTF-8
+ *
+ * @param src UTF-16 bytes sequence, aligned on a 16-bits boundary
+ * @param len number of uint16_t to convert
+ */
+static char *
+UTF16toUTF8( const uint16_t *in, size_t len, size_t *newlen )
+{
+ char *res, *out;
+
+ /* allocate memory */
+ out = res = (char *)malloc( 3 * len );
+ if( res == NULL )
+ return NULL;
+
+ while( len > 0 )
+ {
+ uint32_t uv = *in;
+
+ in++;
+ len--;
+
+ if( uv < 0x80 )
+ {
+ *out++ = uv;
+ continue;
+ }
+ if( uv < 0x800 )
+ {
+ *out++ = (( uv >> 6) | 0xc0);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ if( (uv >= 0xd800) && (uv < 0xdbff) )
+ { /* surrogates */
+ uint16_t low = GetWBE( in );
+ in++;
+ len--;
+
+ if( (low < 0xdc00) || (low >= 0xdfff) )
+ {
+ *out++ = '?'; /* Malformed surrogate */
+ continue;
+ }
+ else
+ uv = ((uv - 0xd800) << 10) + (low - 0xdc00) + 0x10000;
+ }
+ if( uv < 0x10000 )
+ {
+ *out++ = (( uv >> 12) | 0xe0);
+ *out++ = (((uv >> 6) & 0x3f) | 0x80);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ else
+ {
+ *out++ = (( uv >> 18) | 0xf0);
+ *out++ = (((uv >> 12) & 0x3f) | 0x80);
+ *out++ = (((uv >> 6) & 0x3f) | 0x80);
+ *out++ = (( uv & 0x3f) | 0x80);
+ continue;
+ }
+ }
+ len = out - res;
+ res = realloc( res, len );
+ if( newlen != NULL )
+ *newlen = len;
+ return res;
+}
+
+
+/**
+ * FromUTF16(): converts an UTF-16 string to UTF-8.
+ *
+ * @param src UTF-16 bytes sequence, aligned on a 16-bits boundary.
+ *
+ * @return the result of the conversion (must be free()'d),
+ * or NULL in case of error.
+ */
+char *FromUTF16( const uint16_t *src )
+{
+ const uint16_t *in;
+ size_t len;
+
+ /* determine the size of the string */
+ for( len = 1, in = src; *in; len++ )
+ in++;
+
+ return UTF16toUTF8( src, len, NULL );
+}
projects / vlc / blobdiff