language.c

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  * messages consisting of:
  *
  *    #### SP message text
  *
  * or:
  *
  *    message text
  *
  * If the line starts with a number, then message processing picks up
  * where the number indicates.  Otherwise the last message number is
  * incremented.
  *
  * All leading whitespace is deleted.
  */

  if (strcmp(real, "C"))
    fp = fopen(filename, "r");
  else
    fp = NULL;

  if (fp == NULL)
    strlcpy(line, lang_default[0], sizeof(line));
  else if (fgets(line, sizeof(line), fp) == NULL)
  {
   /*
    * Can't read encoding!
    */

    fclose(fp);
    return (NULL);
  }

  i = strlen(line) - 1;
  if (line[i] == '\n')
    line[i] = '\0';	/* Strip LF */

 /*
  * See if there is a free language available; if so, use that
  * record...
  */

  for (lang = lang_cache; lang != NULL; lang = lang->next)
    if (lang->used == 0)
      break;

  if (lang == NULL)
  {
   /*
    * Allocate memory for the language and add it to the cache.
    */

    if ((lang = calloc(sizeof(cups_lang_t), 1)) == NULL)
    {
      fclose(fp);
      return (NULL);
    }

    lang->next = lang_cache;
    lang_cache = lang;
  }

 /*
  * Free all old strings as needed...
  */

  for (i = 0; i < CUPS_MSG_MAX; i ++)
  {
    if (lang->messages[i] != NULL && lang->messages[i] != lang_blank)
      free(lang->messages[i]);

    lang->messages[i] = (char*)lang_blank;
  }

 /*
  * Then assign the language and encoding fields...
  */

  lang->used ++;
  strlcpy(lang->language, real, sizeof(lang->language));

  if (encoding != CUPS_AUTO_ENCODING)
    lang->encoding = encoding;
  else
  {
    lang->encoding = CUPS_US_ASCII;

    for (i = 0; i < (sizeof(lang_encodings) / sizeof(lang_encodings[0])); i ++)
      if (strcmp(lang_encodings[i], line) == 0)
      {
	lang->encoding = (cups_encoding_t)i;
	break;
      }
  }

 /*
  * Read the strings from the file...
  */

  msg   = (cups_msg_t)-1;
  count = 1;

  for (;;)
  {
   /*
    * Read a line from memory or from a file...
    */

    if (fp == NULL)
    {
      if (lang_default[count] == NULL)
        break;

      strlcpy(line, lang_default[count], sizeof(line));
    }
    else if (fgets(line, sizeof(line), fp) == NULL)
      break;

    count ++;

   /*
    * Ignore blank lines...
    */

    i = strlen(line) - 1;
    if (line[i] == '\n')
      line[i] = '\0';	/* Strip LF */

    if (line[0] == '\0')
      continue;

   /*
    * Grab the message number and text...
    */

    if (isdigit(line[0] & 255))
      msg = (cups_msg_t)atoi(line);
    else
      msg ++;

    if (msg < 0 || msg >= CUPS_MSG_MAX)
      continue;

    text = line;
    while (isdigit(*text & 255))
      text ++;
    while (isspace(*text & 255))
      text ++;
    
    lang->messages[msg] = strdup(text);
  }

 /*
  * Close the file and return...
  */

  if (fp != NULL)
    fclose(fp);

  return (lang);
}


/*
 * '_cupsRestoreLocale()' - Restore the original locale...
 */

void
_cupsRestoreLocale(int  category,	/* I - Category */
                   char *oldlocale)	/* I - Old locale or NULL */
{
  DEBUG_printf(("_cupsRestoreLocale(category=%d, oldlocale=\"%s\")\n",
                category, oldlocale));

  if (oldlocale)
  {
   /*
    * Reset the locale and free the locale string...
    */

    setlocale(category, oldlocale);
    free(oldlocale);
  }
}


/*
 * '_cupsSaveLocale()' - Set the locale and save a copy of the old locale...
 */

char *					/* O - Old locale or NULL */
_cupsSaveLocale(int        category,	/* I - Category */
                const char *locale)	/* I - New locale or NULL */
{
  char	*oldlocale;			/* Old locale */


  DEBUG_printf(("_cupsSaveLocale(category=%d, locale=\"%s\")\n",
                category, locale));

 /*
  * Get the old locale and copy it...
  */

  if ((oldlocale = setlocale(category, NULL)) != NULL)
    oldlocale = strdup(oldlocale);

  DEBUG_printf(("    oldlocale=\"%s\"\n", oldlocale ? oldlocale : "(null)"));

 /*
  * Set the new locale...
  */

  setlocale(category, locale);

 /*
  * Return a copy of the old locale...
  */

  return (oldlocale);
}


#ifdef __APPLE__
/*
 * Code & data to translate OSX's language names to their ISO 639-1 locale.
 *
 * The first version uses the new CoreFoundation API added in 10.3 (Panther),
 * the second is for 10.2 (Jaguar).
 */

#  ifdef HAVE_CF_LOCALE_ID
/*
 * 'appleLangDefault()' - Get the default locale string.
 */

static const char *			/* O - Locale string */
appleLangDefault(void)
{
  CFPropertyListRef 	localizationList;
					/* List of localization data */
  CFStringRef		languageName;	/* Current name */
  CFStringRef		localeName;	/* Canonical from of name */
  static char		language[32] = "";
					/* Cached language */


 /*
  * Only do the lookup and translation the first time.
  */

  if (!language[0])
  {
    localizationList =
        CFPreferencesCopyAppValue(CFSTR("AppleLanguages"),
                                  kCFPreferencesCurrentApplication);

    if (localizationList != NULL)
    {
      if (CFGetTypeID(localizationList) == CFArrayGetTypeID() &&
	  CFArrayGetCount(localizationList) > 0)
      {
        languageName = CFArrayGetValueAtIndex(localizationList, 0);

        if (languageName != NULL &&
            CFGetTypeID(languageName) == CFStringGetTypeID())
        {
	  localeName = CFLocaleCreateCanonicalLocaleIdentifierFromString(
	                   kCFAllocatorDefault, languageName);

	  if (localeName != NULL)
	  {
	    CFStringGetCString(localeName, language, sizeof(language),
			       kCFStringEncodingASCII);
	    CFRelease(localeName);

	    if (!strcmp(language, "en"))
	      strlcpy(language, "en_US.UTF-8", sizeof(language));
	    else if (strchr(language, '.') == NULL)
	      strlcat(language, ".UTF-8", sizeof(language));
	  }
        }
      }

      CFRelease(localizationList);
    }
  
   /*
    * If we didn't find the language, default to en_US...
    */

    if (!language[0])
      strlcpy(language, "en_US.UTF-8", sizeof(language));
  }

 /*
  * Return the cached locale...
  */

  return (language);
}
#  else
/*
 * Code & data to translate OSX 10.2's language names to their ISO 639-1
 * locale.
 */

typedef struct
{
  const char * const name;		/* Language name */
  const char * const locale;		/* Locale name */
} apple_name_locale_t;

static const apple_name_locale_t apple_name_locale[] =
{
  { "English"     , "en_US.UTF-8" },	{ "French"     , "fr.UTF-8" },
  { "German"      , "de.UTF-8" },	{ "Italian"    , "it.UTF-8" },  
  { "Dutch"       , "nl.UTF-8" },	{ "Swedish"    , "sv.UTF-8" },
  { "Spanish"     , "es.UTF-8" },	{ "Danish"     , "da.UTF-8" },  
  { "Portuguese"  , "pt.UTF-8" },	{ "Norwegian"  , "no.UTF-8" },
  { "Hebrew"      , "he.UTF-8" },	{ "Japanese"   , "ja.UTF-8" },  
  { "Arabic"      , "ar.UTF-8" },	{ "Finnish"    , "fi.UTF-8" },
  { "Greek"       , "el.UTF-8" },	{ "Icelandic"  , "is.UTF-8" },  
  { "Maltese"     , "mt.UTF-8" },	{ "Turkish"    , "tr.UTF-8" },
  { "Croatian"    , "hr.UTF-8" },	{ "Chinese"    , "zh.UTF-8" },  
  { "Urdu"        , "ur.UTF-8" },	{ "Hindi"      , "hi.UTF-8" },
  { "Thai"        , "th.UTF-8" },	{ "Korean"     , "ko.UTF-8" },  
  { "Lithuanian"  , "lt.UTF-8" },	{ "Polish"     , "pl.UTF-8" },
  { "Hungarian"   , "hu.UTF-8" },	{ "Estonian"   , "et.UTF-8" },  
  { "Latvian"     , "lv.UTF-8" },	{ "Sami"       , "se.UTF-8" },
  { "Faroese"     , "fo.UTF-8" },	{ "Farsi"      , "fa.UTF-8" },  
  { "Russian"     , "ru.UTF-8" },	{ "Chinese"    , "zh.UTF-8" },
  { "Dutch"       , "nl.UTF-8" },	{ "Irish"      , "ga.UTF-8" },  
  { "Albanian"    , "sq.UTF-8" },	{ "Romanian"   , "ro.UTF-8" },
  { "Czech"       , "cs.UTF-8" },	{ "Slovak"     , "sk.UTF-8" },  
  { "Slovenian"   , "sl.UTF-8" },	{ "Yiddish"    , "yi.UTF-8" },
  { "Serbian"     , "sr.UTF-8" },	{ "Macedonian" , "mk.UTF-8" },  
  { "Bulgarian"   , "bg.UTF-8" },	{ "Ukrainian"  , "uk.UTF-8" },
  { "Byelorussian", "be.UTF-8" },	{ "Uzbek"      , "uz.UTF-8" },  
  { "Kazakh"      , "kk.UTF-8" },	{ "Azerbaijani", "az.UTF-8" },
  { "Azerbaijani" , "az.UTF-8" },	{ "Armenian"   , "hy.UTF-8" },  
  { "Georgian"    , "ka.UTF-8" },	{ "Moldavian"  , "mo.UTF-8" },
  { "Kirghiz"     , "ky.UTF-8" },	{ "Tajiki"     , "tg.UTF-8" },  
  { "Turkmen"     , "tk.UTF-8" },	{ "Mongolian"  , "mn.UTF-8" },
  { "Mongolian"   , "mn.UTF-8" },	{ "Pashto"     , "ps.UTF-8" },  
  { "Kurdish"     , "ku.UTF-8" },	{ "Kashmiri"   , "ks.UTF-8" },
  { "Sindhi"      , "sd.UTF-8" },	{ "Tibetan"    , "bo.UTF-8" },  
  { "Nepali"      , "ne.UTF-8" },	{ "Sanskrit"   , "sa.UTF-8" },
  { "Marathi"     , "mr.UTF-8" },	{ "Bengali"    , "bn.UTF-8" },  
  { "Assamese"    , "as.UTF-8" },	{ "Gujarati"   , "gu.UTF-8" },
  { "Punjabi"     , "pa.UTF-8" },	{ "Oriya"      , "or.UTF-8" },  
  { "Malayalam"   , "ml.UTF-8" },	{ "Kannada"    , "kn.UTF-8" },
  { "Tamil"       , "ta.UTF-8" },	{ "Telugu"     , "te.UTF-8" },  
  { "Sinhalese"   , "si.UTF-8" },	{ "Burmese"    , "my.UTF-8" },
  { "Khmer"       , "km.UTF-8" },	{ "Lao"        , "lo.UTF-8" },  
  { "Vietnamese"  , "vi.UTF-8" },	{ "Indonesian" , "id.UTF-8" },
  { "Tagalog"     , "tl.UTF-8" },	{ "Malay"      , "ms.UTF-8" },  
  { "Malay"       , "ms.UTF-8" },	{ "Amharic"    , "am.UTF-8" },
  { "Tigrinya"    , "ti.UTF-8" },	{ "Oromo"      , "om.UTF-8" },  
  { "Somali"      , "so.UTF-8" },	{ "Swahili"    , "sw.UTF-8" },
  { "Kinyarwanda" , "rw.UTF-8" },	{ "Rundi"      , "rn.UTF-8" },  
  { "Nyanja"      , "" },		{ "Malagasy"   , "mg.UTF-8" },
  { "Esperanto"   , "eo.UTF-8" },	{ "Welsh"      , "cy.UTF-8" },  
  { "Basque"      , "eu.UTF-8" },	{ "Catalan"    , "ca.UTF-8" },
  { "Latin"       , "la.UTF-8" },	{ "Quechua"    , "qu.UTF-8" },  
  { "Guarani"     , "gn.UTF-8" },	{ "Aymara"     , "ay.UTF-8" },
  { "Tatar"       , "tt.UTF-8" },	{ "Uighur"     , "ug.UTF-8" },  
  { "Dzongkha"    , "dz.UTF-8" },	{ "Javanese"   , "jv.UTF-8" },
  { "Sundanese"   , "su.UTF-8" },	{ "Galician"   , "gl.UTF-8" },  
  { "Afrikaans"   , "af.UTF-8" },	{ "Breton"     , "br.UTF-8" },
  { "Inuktitut"   , "iu.UTF-8" },	{ "Scottish"   , "gd.UTF-8" },  
  { "Manx"        , "gv.UTF-8" },	{ "Irish"      , "ga.UTF-8" },
  { "Tongan"      , "to.UTF-8" },	{ "Greek"      , "el.UTF-8" },  
  { "Greenlandic" , "kl.UTF-8" },	{ "Azerbaijani", "az.UTF-8" }
};


/*
 * 'appleLangDefault()' - Get the default locale string.
 */

static const char *			/* O - Locale string */
appleLangDefault(void)
{
  int			i;		/* Looping var */
  CFPropertyListRef 	localizationList;
					/* List of localization data */
  CFStringRef		localizationName;
					/* Current name */
  char			buff[256];	/* Temporary buffer */
  static const char	*language = NULL;
					/* Cached language */


 /*
  * Only do the lookup and translation the first time.
  */

  if (language == NULL)
  {
    localizationList =
        CFPreferencesCopyAppValue(CFSTR("AppleLanguages"),
                                  kCFPreferencesCurrentApplication);

    if (localizationList != NULL)
    {
      if (CFGetTypeID(localizationList) == CFArrayGetTypeID() &&
	  CFArrayGetCount(localizationList) > 0)
      {
	localizationName = CFArrayGetValueAtIndex(localizationList, 0);

	if (localizationName != NULL &&
            CFGetTypeID(localizationName) == CFStringGetTypeID())
	{
	  CFIndex length = CFStringGetLength(localizationName);

	  if (length <= sizeof(buff) &&
	      CFStringGetCString(localizationName, buff, sizeof(buff),
	                         kCFStringEncodingASCII))
	  {
	    buff[sizeof(buff) - 1] = '\0';

	    for (i = 0;
		 i < sizeof(apple_name_locale) / sizeof(apple_name_locale[0]);
		 i++)
	    {
	      if (strcasecmp(buff, apple_name_locale[i].name) == 0)
	      {
		language = apple_name_locale[i].locale;
		break;
	      }
	    }
	  }
	}
      }

      CFRelease(localizationList);
    }
  
   /*
    * If we didn't find the language, default to en_US...
    */

    if (language == NULL)
      language = apple_name_locale[0].locale;
  }

 /*
  * Return the cached locale...
  */

  return (language);
}
#  endif /* HAVE_CF_LOCALE_ID */
#endif /* __APPLE__ */


/*
 * 'cups_cache_lookup()' - Lookup a language in the cache...
 */

static cups_lang_t *			/* O - Language data or NULL */
cups_cache_lookup(const char      *name,/* I - Name of locale */
                  cups_encoding_t encoding)
					/* I - Encoding of locale */
{
  cups_lang_t	*lang;			/* Current language */


  DEBUG_printf(("cups_cache_lookup(name=\"%s\", encoding=%d(%s))\n", name,
                encoding, encoding == CUPS_AUTO_ENCODING ? "auto" :
		              lang_encodings[encoding]));

 /*
  * Loop through the cache and return a match if found...
  */

  for (lang = lang_cache; lang != NULL; lang = lang->next)
    if (!strcmp(lang->language, name) &&
        (encoding == CUPS_AUTO_ENCODING || encoding == lang->encoding))
    {
      lang->used ++;

      DEBUG_puts("cups_cache_lookup: returning match!");

      return (lang);
    }

  DEBUG_puts("cups_cache_lookup: returning NULL!");

  return (NULL);
}


/*
 * End of "$Id: language.c,v 1.53 2005/01/03 19:29:45 mike Exp $".
 */