xref: /netbsd-src/external/gpl3/gcc.old/dist/intl/localename.c (revision 36ac495d2b3ea2b9d96377b2143ebfedac224b92)

/* Determine the current selected locale.
   Copyright (C) 1995-1999, 2000-2002 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU Library General Public License as published
   by the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
   USA.  */

/* Written by Ulrich Drepper <drepper@gnu.org>, 1995.  */
/* Win32 code written by Tor Lillqvist <tml@iki.fi>.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdlib.h>
#include <locale.h>

#if defined _WIN32 || defined __WIN32__
# undef WIN32   /* avoid warning on mingw32 */
# define WIN32
#endif

#ifdef WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Mingw headers don't have latest language and sublanguage codes.  */
# ifndef LANG_AFRIKAANS
# define LANG_AFRIKAANS 0x36
# endif
# ifndef LANG_ALBANIAN
# define LANG_ALBANIAN 0x1c
# endif
# ifndef LANG_ARABIC
# define LANG_ARABIC 0x01
# endif
# ifndef LANG_ARMENIAN
# define LANG_ARMENIAN 0x2b
# endif
# ifndef LANG_ASSAMESE
# define LANG_ASSAMESE 0x4d
# endif
# ifndef LANG_AZERI
# define LANG_AZERI 0x2c
# endif
# ifndef LANG_BASQUE
# define LANG_BASQUE 0x2d
# endif
# ifndef LANG_BELARUSIAN
# define LANG_BELARUSIAN 0x23
# endif
# ifndef LANG_BENGALI
# define LANG_BENGALI 0x45
# endif
# ifndef LANG_CATALAN
# define LANG_CATALAN 0x03
# endif
# ifndef LANG_DIVEHI
# define LANG_DIVEHI 0x65
# endif
# ifndef LANG_ESTONIAN
# define LANG_ESTONIAN 0x25
# endif
# ifndef LANG_FAEROESE
# define LANG_FAEROESE 0x38
# endif
# ifndef LANG_FARSI
# define LANG_FARSI 0x29
# endif
# ifndef LANG_GALICIAN
# define LANG_GALICIAN 0x56
# endif
# ifndef LANG_GEORGIAN
# define LANG_GEORGIAN 0x37
# endif
# ifndef LANG_GUJARATI
# define LANG_GUJARATI 0x47
# endif
# ifndef LANG_HEBREW
# define LANG_HEBREW 0x0d
# endif
# ifndef LANG_HINDI
# define LANG_HINDI 0x39
# endif
# ifndef LANG_INDONESIAN
# define LANG_INDONESIAN 0x21
# endif
# ifndef LANG_KANNADA
# define LANG_KANNADA 0x4b
# endif
# ifndef LANG_KASHMIRI
# define LANG_KASHMIRI 0x60
# endif
# ifndef LANG_KAZAK
# define LANG_KAZAK 0x3f
# endif
# ifndef LANG_KONKANI
# define LANG_KONKANI 0x57
# endif
# ifndef LANG_KYRGYZ
# define LANG_KYRGYZ 0x40
# endif
# ifndef LANG_LATVIAN
# define LANG_LATVIAN 0x26
# endif
# ifndef LANG_LITHUANIAN
# define LANG_LITHUANIAN 0x27
# endif
# ifndef LANG_MACEDONIAN
# define LANG_MACEDONIAN 0x2f
# endif
# ifndef LANG_MALAY
# define LANG_MALAY 0x3e
# endif
# ifndef LANG_MALAYALAM
# define LANG_MALAYALAM 0x4c
# endif
# ifndef LANG_MANIPURI
# define LANG_MANIPURI 0x58
# endif
# ifndef LANG_MARATHI
# define LANG_MARATHI 0x4e
# endif
# ifndef LANG_MONGOLIAN
# define LANG_MONGOLIAN 0x50
# endif
# ifndef LANG_NEPALI
# define LANG_NEPALI 0x61
# endif
# ifndef LANG_ORIYA
# define LANG_ORIYA 0x48
# endif
# ifndef LANG_PUNJABI
# define LANG_PUNJABI 0x46
# endif
# ifndef LANG_SANSKRIT
# define LANG_SANSKRIT 0x4f
# endif
# ifndef LANG_SERBIAN
# define LANG_SERBIAN 0x1a
# endif
# ifndef LANG_SINDHI
# define LANG_SINDHI 0x59
# endif
# ifndef LANG_SLOVAK
# define LANG_SLOVAK 0x1b
# endif
# ifndef LANG_SORBIAN
# define LANG_SORBIAN 0x2e
# endif
# ifndef LANG_SWAHILI
# define LANG_SWAHILI 0x41
# endif
# ifndef LANG_SYRIAC
# define LANG_SYRIAC 0x5a
# endif
# ifndef LANG_TAMIL
# define LANG_TAMIL 0x49
# endif
# ifndef LANG_TATAR
# define LANG_TATAR 0x44
# endif
# ifndef LANG_TELUGU
# define LANG_TELUGU 0x4a
# endif
# ifndef LANG_THAI
# define LANG_THAI 0x1e
# endif
# ifndef LANG_UKRAINIAN
# define LANG_UKRAINIAN 0x22
# endif
# ifndef LANG_URDU
# define LANG_URDU 0x20
# endif
# ifndef LANG_UZBEK
# define LANG_UZBEK 0x43
# endif
# ifndef LANG_VIETNAMESE
# define LANG_VIETNAMESE 0x2a
# endif
# ifndef SUBLANG_ARABIC_SAUDI_ARABIA
# define SUBLANG_ARABIC_SAUDI_ARABIA 0x01
# endif
# ifndef SUBLANG_ARABIC_IRAQ
# define SUBLANG_ARABIC_IRAQ 0x02
# endif
# ifndef SUBLANG_ARABIC_EGYPT
# define SUBLANG_ARABIC_EGYPT 0x03
# endif
# ifndef SUBLANG_ARABIC_LIBYA
# define SUBLANG_ARABIC_LIBYA 0x04
# endif
# ifndef SUBLANG_ARABIC_ALGERIA
# define SUBLANG_ARABIC_ALGERIA 0x05
# endif
# ifndef SUBLANG_ARABIC_MOROCCO
# define SUBLANG_ARABIC_MOROCCO 0x06
# endif
# ifndef SUBLANG_ARABIC_TUNISIA
# define SUBLANG_ARABIC_TUNISIA 0x07
# endif
# ifndef SUBLANG_ARABIC_OMAN
# define SUBLANG_ARABIC_OMAN 0x08
# endif
# ifndef SUBLANG_ARABIC_YEMEN
# define SUBLANG_ARABIC_YEMEN 0x09
# endif
# ifndef SUBLANG_ARABIC_SYRIA
# define SUBLANG_ARABIC_SYRIA 0x0a
# endif
# ifndef SUBLANG_ARABIC_JORDAN
# define SUBLANG_ARABIC_JORDAN 0x0b
# endif
# ifndef SUBLANG_ARABIC_LEBANON
# define SUBLANG_ARABIC_LEBANON 0x0c
# endif
# ifndef SUBLANG_ARABIC_KUWAIT
# define SUBLANG_ARABIC_KUWAIT 0x0d
# endif
# ifndef SUBLANG_ARABIC_UAE
# define SUBLANG_ARABIC_UAE 0x0e
# endif
# ifndef SUBLANG_ARABIC_BAHRAIN
# define SUBLANG_ARABIC_BAHRAIN 0x0f
# endif
# ifndef SUBLANG_ARABIC_QATAR
# define SUBLANG_ARABIC_QATAR 0x10
# endif
# ifndef SUBLANG_AZERI_LATIN
# define SUBLANG_AZERI_LATIN 0x01
# endif
# ifndef SUBLANG_AZERI_CYRILLIC
# define SUBLANG_AZERI_CYRILLIC 0x02
# endif
# ifndef SUBLANG_CHINESE_MACAU
# define SUBLANG_CHINESE_MACAU 0x05
# endif
# ifndef SUBLANG_ENGLISH_SOUTH_AFRICA
# define SUBLANG_ENGLISH_SOUTH_AFRICA 0x07
# endif
# ifndef SUBLANG_ENGLISH_JAMAICA
# define SUBLANG_ENGLISH_JAMAICA 0x08
# endif
# ifndef SUBLANG_ENGLISH_CARIBBEAN
# define SUBLANG_ENGLISH_CARIBBEAN 0x09
# endif
# ifndef SUBLANG_ENGLISH_BELIZE
# define SUBLANG_ENGLISH_BELIZE 0x0a
# endif
# ifndef SUBLANG_ENGLISH_TRINIDAD
# define SUBLANG_ENGLISH_TRINIDAD 0x0b
# endif
# ifndef SUBLANG_ENGLISH_ZIMBABWE
# define SUBLANG_ENGLISH_ZIMBABWE 0x0c
# endif
# ifndef SUBLANG_ENGLISH_PHILIPPINES
# define SUBLANG_ENGLISH_PHILIPPINES 0x0d
# endif
# ifndef SUBLANG_FRENCH_LUXEMBOURG
# define SUBLANG_FRENCH_LUXEMBOURG 0x05
# endif
# ifndef SUBLANG_FRENCH_MONACO
# define SUBLANG_FRENCH_MONACO 0x06
# endif
# ifndef SUBLANG_GERMAN_LUXEMBOURG
# define SUBLANG_GERMAN_LUXEMBOURG 0x04
# endif
# ifndef SUBLANG_GERMAN_LIECHTENSTEIN
# define SUBLANG_GERMAN_LIECHTENSTEIN 0x05
# endif
# ifndef SUBLANG_KASHMIRI_INDIA
# define SUBLANG_KASHMIRI_INDIA 0x02
# endif
# ifndef SUBLANG_MALAY_MALAYSIA
# define SUBLANG_MALAY_MALAYSIA 0x01
# endif
# ifndef SUBLANG_MALAY_BRUNEI_DARUSSALAM
# define SUBLANG_MALAY_BRUNEI_DARUSSALAM 0x02
# endif
# ifndef SUBLANG_NEPALI_INDIA
# define SUBLANG_NEPALI_INDIA 0x02
# endif
# ifndef SUBLANG_SERBIAN_LATIN
# define SUBLANG_SERBIAN_LATIN 0x02
# endif
# ifndef SUBLANG_SERBIAN_CYRILLIC
# define SUBLANG_SERBIAN_CYRILLIC 0x03
# endif
# ifndef SUBLANG_SPANISH_GUATEMALA
# define SUBLANG_SPANISH_GUATEMALA 0x04
# endif
# ifndef SUBLANG_SPANISH_COSTA_RICA
# define SUBLANG_SPANISH_COSTA_RICA 0x05
# endif
# ifndef SUBLANG_SPANISH_PANAMA
# define SUBLANG_SPANISH_PANAMA 0x06
# endif
# ifndef SUBLANG_SPANISH_DOMINICAN_REPUBLIC
# define SUBLANG_SPANISH_DOMINICAN_REPUBLIC 0x07
# endif
# ifndef SUBLANG_SPANISH_VENEZUELA
# define SUBLANG_SPANISH_VENEZUELA 0x08
# endif
# ifndef SUBLANG_SPANISH_COLOMBIA
# define SUBLANG_SPANISH_COLOMBIA 0x09
# endif
# ifndef SUBLANG_SPANISH_PERU
# define SUBLANG_SPANISH_PERU 0x0a
# endif
# ifndef SUBLANG_SPANISH_ARGENTINA
# define SUBLANG_SPANISH_ARGENTINA 0x0b
# endif
# ifndef SUBLANG_SPANISH_ECUADOR
# define SUBLANG_SPANISH_ECUADOR 0x0c
# endif
# ifndef SUBLANG_SPANISH_CHILE
# define SUBLANG_SPANISH_CHILE 0x0d
# endif
# ifndef SUBLANG_SPANISH_URUGUAY
# define SUBLANG_SPANISH_URUGUAY 0x0e
# endif
# ifndef SUBLANG_SPANISH_PARAGUAY
# define SUBLANG_SPANISH_PARAGUAY 0x0f
# endif
# ifndef SUBLANG_SPANISH_BOLIVIA
# define SUBLANG_SPANISH_BOLIVIA 0x10
# endif
# ifndef SUBLANG_SPANISH_EL_SALVADOR
# define SUBLANG_SPANISH_EL_SALVADOR 0x11
# endif
# ifndef SUBLANG_SPANISH_HONDURAS
# define SUBLANG_SPANISH_HONDURAS 0x12
# endif
# ifndef SUBLANG_SPANISH_NICARAGUA
# define SUBLANG_SPANISH_NICARAGUA 0x13
# endif
# ifndef SUBLANG_SPANISH_PUERTO_RICO
# define SUBLANG_SPANISH_PUERTO_RICO 0x14
# endif
# ifndef SUBLANG_SWEDISH_FINLAND
# define SUBLANG_SWEDISH_FINLAND 0x02
# endif
# ifndef SUBLANG_URDU_PAKISTAN
# define SUBLANG_URDU_PAKISTAN 0x01
# endif
# ifndef SUBLANG_URDU_INDIA
# define SUBLANG_URDU_INDIA 0x02
# endif
# ifndef SUBLANG_UZBEK_LATIN
# define SUBLANG_UZBEK_LATIN 0x01
# endif
# ifndef SUBLANG_UZBEK_CYRILLIC
# define SUBLANG_UZBEK_CYRILLIC 0x02
# endif
#endif

/* XPG3 defines the result of 'setlocale (category, NULL)' as:
   "Directs 'setlocale()' to query 'category' and return the current
    setting of 'local'."
   However it does not specify the exact format.  Neither do SUSV2 and
   ISO C 99.  So we can use this feature only on selected systems (e.g.
   those using GNU C Library).  */
#if defined _LIBC || (defined __GNU_LIBRARY__ && __GNU_LIBRARY__ >= 2)
# define HAVE_LOCALE_NULL
#endif

/* Determine the current locale's name, and canonicalize it into XPG syntax
     language[_territory[.codeset]][@modifier]
   The codeset part in the result is not reliable; the locale_charset()
   should be used for codeset information instead.
   The result must not be freed; it is statically allocated.  */

const char *
_nl_locale_name (category, categoryname)
     int category;
     const char *categoryname;
{
  const char *retval;

#ifndef WIN32

  /* Use the POSIX methods of looking to 'LC_ALL', 'LC_xxx', and 'LANG'.
     On some systems this can be done by the 'setlocale' function itself.  */
# if defined HAVE_SETLOCALE && defined HAVE_LC_MESSAGES && defined HAVE_LOCALE_NULL
  retval = setlocale (category, NULL);
# else
  /* Setting of LC_ALL overwrites all other.  */
  retval = getenv ("LC_ALL");
  if (retval == NULL || retval[0] == '\0')
    {
      /* Next comes the name of the desired category.  */
      retval = getenv (categoryname);
      if (retval == NULL || retval[0] == '\0')
	{
	  /* Last possibility is the LANG environment variable.  */
	  retval = getenv ("LANG");
	  if (retval == NULL || retval[0] == '\0')
	    /* We use C as the default domain.  POSIX says this is
	       implementation defined.  */
	    retval = "C";
	}
    }
# endif

  return retval;

#else /* WIN32 */

  /* Return an XPG style locale name language[_territory][@modifier].
     Don't even bother determining the codeset; it's not useful in this
     context, because message catalogs are not specific to a single
     codeset.  */

  LCID lcid;
  LANGID langid;
  int primary, sub;

  /* Let the user override the system settings through environment
     variables, as on POSIX systems.  */
  retval = getenv ("LC_ALL");
  if (retval != NULL && retval[0] != '\0')
    return retval;
  retval = getenv (categoryname);
  if (retval != NULL && retval[0] != '\0')
    return retval;
  retval = getenv ("LANG");
  if (retval != NULL && retval[0] != '\0')
    return retval;

  /* Use native Win32 API locale ID.  */
  lcid = GetThreadLocale ();

  /* Strip off the sorting rules, keep only the language part.  */
  langid = LANGIDFROMLCID (lcid);

  /* Split into language and territory part.  */
  primary = PRIMARYLANGID (langid);
  sub = SUBLANGID (langid);

  /* Dispatch on language.
     See also http://www.unicode.org/unicode/onlinedat/languages.html .
     For details about languages, see http://www.ethnologue.com/ .  */
  switch (primary)
    {
    case LANG_AFRIKAANS: return "af_ZA";
    case LANG_ALBANIAN: return "sq_AL";
    case 0x5e: /* AMHARIC */ return "am_ET";
    case LANG_ARABIC:
      switch (sub)
	{
	case SUBLANG_ARABIC_SAUDI_ARABIA: return "ar_SA";
	case SUBLANG_ARABIC_IRAQ: return "ar_IQ";
	case SUBLANG_ARABIC_EGYPT: return "ar_EG";
	case SUBLANG_ARABIC_LIBYA: return "ar_LY";
	case SUBLANG_ARABIC_ALGERIA: return "ar_DZ";
	case SUBLANG_ARABIC_MOROCCO: return "ar_MA";
	case SUBLANG_ARABIC_TUNISIA: return "ar_TN";
	case SUBLANG_ARABIC_OMAN: return "ar_OM";
	case SUBLANG_ARABIC_YEMEN: return "ar_YE";
	case SUBLANG_ARABIC_SYRIA: return "ar_SY";
	case SUBLANG_ARABIC_JORDAN: return "ar_JO";
	case SUBLANG_ARABIC_LEBANON: return "ar_LB";
	case SUBLANG_ARABIC_KUWAIT: return "ar_KW";
	case SUBLANG_ARABIC_UAE: return "ar_AE";
	case SUBLANG_ARABIC_BAHRAIN: return "ar_BH";
	case SUBLANG_ARABIC_QATAR: return "ar_QA";
	}
      return "ar";
    case LANG_ARMENIAN: return "hy_AM";
    case LANG_ASSAMESE: return "as_IN";
    case LANG_AZERI:
      switch (sub)
	{
	/* FIXME: Adjust this when Azerbaijani locales appear on Unix.  */
	case SUBLANG_AZERI_LATIN: return "az_AZ@latin";
	case SUBLANG_AZERI_CYRILLIC: return "az_AZ@cyrillic";
	}
      return "az";
    case LANG_BASQUE:
      return "eu"; /* Ambiguous: could be "eu_ES" or "eu_FR".  */
    case LANG_BELARUSIAN: return "be_BY";
    case LANG_BENGALI: return "bn_IN";
    case LANG_BULGARIAN: return "bg_BG";
    case 0x55: /* BURMESE */ return "my_MM";
    case 0x53: /* CAMBODIAN */ return "km_KH";
    case LANG_CATALAN: return "ca_ES";
    case 0x5c: /* CHEROKEE */ return "chr_US";
    case LANG_CHINESE:
      switch (sub)
	{
	case SUBLANG_CHINESE_TRADITIONAL: return "zh_TW";
	case SUBLANG_CHINESE_SIMPLIFIED: return "zh_CN";
	case SUBLANG_CHINESE_HONGKONG: return "zh_HK";
	case SUBLANG_CHINESE_SINGAPORE: return "zh_SG";
	case SUBLANG_CHINESE_MACAU: return "zh_MO";
	}
      return "zh";
    case LANG_CROATIAN:		/* LANG_CROATIAN == LANG_SERBIAN
				 * What used to be called Serbo-Croatian
				 * should really now be two separate
				 * languages because of political reasons.
				 * (Says tml, who knows nothing about Serbian
				 * or Croatian.)
				 * (I can feel those flames coming already.)
				 */
      switch (sub)
	{
	case SUBLANG_DEFAULT: return "hr_HR";
	case SUBLANG_SERBIAN_LATIN: return "sr_YU";
	case SUBLANG_SERBIAN_CYRILLIC: return "sr_YU@cyrillic";
	}
      return "hr";
    case LANG_CZECH: return "cs_CZ";
    case LANG_DANISH: return "da_DK";
    case LANG_DIVEHI: return "div_MV";
    case LANG_DUTCH:
      switch (sub)
	{
	case SUBLANG_DUTCH: return "nl_NL";
	case SUBLANG_DUTCH_BELGIAN: /* FLEMISH, VLAAMS */ return "nl_BE";
	}
      return "nl";
    case 0x66: /* EDO */ return "bin_NG";
    case LANG_ENGLISH:
      switch (sub)
	{
	/* SUBLANG_ENGLISH_US == SUBLANG_DEFAULT. Heh. I thought
	 * English was the language spoken in England.
	 * Oh well.
	 */
	case SUBLANG_ENGLISH_US: return "en_US";
	case SUBLANG_ENGLISH_UK: return "en_GB";
	case SUBLANG_ENGLISH_AUS: return "en_AU";
	case SUBLANG_ENGLISH_CAN: return "en_CA";
	case SUBLANG_ENGLISH_NZ: return "en_NZ";
	case SUBLANG_ENGLISH_EIRE: return "en_IE";
	case SUBLANG_ENGLISH_SOUTH_AFRICA: return "en_ZA";
	case SUBLANG_ENGLISH_JAMAICA: return "en_JM";
	case SUBLANG_ENGLISH_CARIBBEAN: return "en_GD"; /* Grenada? */
	case SUBLANG_ENGLISH_BELIZE: return "en_BZ";
	case SUBLANG_ENGLISH_TRINIDAD: return "en_TT";
	case SUBLANG_ENGLISH_ZIMBABWE: return "en_ZW";
	case SUBLANG_ENGLISH_PHILIPPINES: return "en_PH";
	}
      return "en";
    case LANG_ESTONIAN: return "et_EE";
    case LANG_FAEROESE: return "fo_FO";
    case LANG_FARSI: return "fa_IR";
    case LANG_FINNISH: return "fi_FI";
    case LANG_FRENCH:
      switch (sub)
	{
	case SUBLANG_FRENCH: return "fr_FR";
	case SUBLANG_FRENCH_BELGIAN: /* WALLOON */ return "fr_BE";
	case SUBLANG_FRENCH_CANADIAN: return "fr_CA";
	case SUBLANG_FRENCH_SWISS: return "fr_CH";
	case SUBLANG_FRENCH_LUXEMBOURG: return "fr_LU";
	case SUBLANG_FRENCH_MONACO: return "fr_MC";
	}
      return "fr";
    case 0x62: /* FRISIAN */ return "fy_NL";
    case 0x67: /* FULFULDE */ return "ful_NG";
    case 0x3c: /* GAELIC */
      switch (sub)
	{
	case 0x01: /* SCOTTISH */ return "gd_GB";
	case 0x02: /* IRISH */ return "ga_IE";
	}
      return "C";
    case LANG_GALICIAN: return "gl_ES";
    case LANG_GEORGIAN: return "ka_GE";
    case LANG_GERMAN:
      switch (sub)
	{
	case SUBLANG_GERMAN: return "de_DE";
	case SUBLANG_GERMAN_SWISS: return "de_CH";
	case SUBLANG_GERMAN_AUSTRIAN: return "de_AT";
	case SUBLANG_GERMAN_LUXEMBOURG: return "de_LU";
	case SUBLANG_GERMAN_LIECHTENSTEIN: return "de_LI";
	}
      return "de";
    case LANG_GREEK: return "el_GR";
    case 0x74: /* GUARANI */ return "gn_PY";
    case LANG_GUJARATI: return "gu_IN";
    case 0x68: /* HAUSA */ return "ha_NG";
    case 0x75: /* HAWAIIAN */
      /* FIXME: Do they mean Hawaiian ("haw_US", 1000 speakers)
	 or Hawaii Creole English ("cpe_US", 600000 speakers)?  */
      return "cpe_US";
    case LANG_HEBREW: return "he_IL";
    case LANG_HINDI: return "hi_IN";
    case LANG_HUNGARIAN: return "hu_HU";
    case 0x69: /* IBIBIO */ return "nic_NG";
    case LANG_ICELANDIC: return "is_IS";
    case 0x70: /* IGBO */ return "ibo_NG";
    case LANG_INDONESIAN: return "id_ID";
    case 0x5d: /* INUKTITUT */ return "iu_CA";
    case LANG_ITALIAN:
      switch (sub)
	{
	case SUBLANG_ITALIAN: return "it_IT";
	case SUBLANG_ITALIAN_SWISS: return "it_CH";
	}
      return "it";
    case LANG_JAPANESE: return "ja_JP";
    case LANG_KANNADA: return "kn_IN";
    case 0x71: /* KANURI */ return "kau_NG";
    case LANG_KASHMIRI:
      switch (sub)
	{
	case SUBLANG_DEFAULT: return "ks_PK";
	case SUBLANG_KASHMIRI_INDIA: return "ks_IN";
	}
      return "ks";
    case LANG_KAZAK: return "kk_KZ";
    case LANG_KONKANI:
      /* FIXME: Adjust this when such locales appear on Unix.  */
      return "kok_IN";
    case LANG_KOREAN: return "ko_KR";
    case LANG_KYRGYZ: return "ky_KG";
    case 0x54: /* LAO */ return "lo_LA";
    case 0x76: /* LATIN */ return "la_VA";
    case LANG_LATVIAN: return "lv_LV";
    case LANG_LITHUANIAN: return "lt_LT";
    case LANG_MACEDONIAN: return "mk_MK";
    case LANG_MALAY:
      switch (sub)
	{
	case SUBLANG_MALAY_MALAYSIA: return "ms_MY";
	case SUBLANG_MALAY_BRUNEI_DARUSSALAM: return "ms_BN";
	}
      return "ms";
    case LANG_MALAYALAM: return "ml_IN";
    case 0x3a: /* MALTESE */ return "mt_MT";
    case LANG_MANIPURI:
      /* FIXME: Adjust this when such locales appear on Unix.  */
      return "mni_IN";
    case LANG_MARATHI: return "mr_IN";
    case LANG_MONGOLIAN:
      return "mn"; /* Ambiguous: could be "mn_CN" or "mn_MN".  */
    case LANG_NEPALI:
      switch (sub)
	{
	case SUBLANG_DEFAULT: return "ne_NP";
	case SUBLANG_NEPALI_INDIA: return "ne_IN";
	}
      return "ne";
    case LANG_NORWEGIAN:
      switch (sub)
	{
	case SUBLANG_NORWEGIAN_BOKMAL: return "no_NO";
	case SUBLANG_NORWEGIAN_NYNORSK: return "nn_NO";
	}
      return "no";
    case LANG_ORIYA: return "or_IN";
    case 0x72: /* OROMO */ return "om_ET";
    case 0x79: /* PAPIAMENTU */ return "pap_AN";
    case 0x63: /* PASHTO */
      return "ps"; /* Ambiguous: could be "ps_PK" or "ps_AF".  */
    case LANG_POLISH: return "pl_PL";
    case LANG_PORTUGUESE:
      switch (sub)
	{
	case SUBLANG_PORTUGUESE: return "pt_PT";
	/* Hmm. SUBLANG_PORTUGUESE_BRAZILIAN == SUBLANG_DEFAULT.
	   Same phenomenon as SUBLANG_ENGLISH_US == SUBLANG_DEFAULT. */
	case SUBLANG_PORTUGUESE_BRAZILIAN: return "pt_BR";
	}
      return "pt";
    case LANG_PUNJABI: return "pa_IN";
    case 0x17: /* RHAETO-ROMANCE */ return "rm_CH";
    case LANG_ROMANIAN: return "ro_RO";
    case LANG_RUSSIAN:
      return "ru"; /* Ambiguous: could be "ru_RU" or "ru_UA".  */
    case 0x3b: /* SAMI */ return "se_NO";
    case LANG_SANSKRIT: return "sa_IN";
    case LANG_SINDHI: return "sd";
    case 0x5b: /* SINHALESE */ return "si_LK";
    case LANG_SLOVAK: return "sk_SK";
    case LANG_SLOVENIAN: return "sl_SI";
    case 0x77: /* SOMALI */ return "so_SO";
    case LANG_SORBIAN:
      /* FIXME: Adjust this when such locales appear on Unix.  */
      return "wen_DE";
    case LANG_SPANISH:
      switch (sub)
	{
	case SUBLANG_SPANISH: return "es_ES";
	case SUBLANG_SPANISH_MEXICAN: return "es_MX";
	case SUBLANG_SPANISH_MODERN:
	  return "es_ES@modern";	/* not seen on Unix */
	case SUBLANG_SPANISH_GUATEMALA: return "es_GT";
	case SUBLANG_SPANISH_COSTA_RICA: return "es_CR";
	case SUBLANG_SPANISH_PANAMA: return "es_PA";
	case SUBLANG_SPANISH_DOMINICAN_REPUBLIC: return "es_DO";
	case SUBLANG_SPANISH_VENEZUELA: return "es_VE";
	case SUBLANG_SPANISH_COLOMBIA: return "es_CO";
	case SUBLANG_SPANISH_PERU: return "es_PE";
	case SUBLANG_SPANISH_ARGENTINA: return "es_AR";
	case SUBLANG_SPANISH_ECUADOR: return "es_EC";
	case SUBLANG_SPANISH_CHILE: return "es_CL";
	case SUBLANG_SPANISH_URUGUAY: return "es_UY";
	case SUBLANG_SPANISH_PARAGUAY: return "es_PY";
	case SUBLANG_SPANISH_BOLIVIA: return "es_BO";
	case SUBLANG_SPANISH_EL_SALVADOR: return "es_SV";
	case SUBLANG_SPANISH_HONDURAS: return "es_HN";
	case SUBLANG_SPANISH_NICARAGUA: return "es_NI";
	case SUBLANG_SPANISH_PUERTO_RICO: return "es_PR";
	}
      return "es";
    case 0x30: /* SUTU */ return "bnt_TZ";
    case LANG_SWAHILI: return "sw_KE";
    case LANG_SWEDISH:
      switch (sub)
	{
	case SUBLANG_DEFAULT: return "sv_SE";
	case SUBLANG_SWEDISH_FINLAND: return "sv_FI";
	}
      return "sv";
    case LANG_SYRIAC: return "syr_TR"; /* An extinct language.  */
    case 0x64: /* TAGALOG */ return "tl_PH";
    case 0x28: /* TAJIK */ return "tg_TJ";
    case 0x5f: /* TAMAZIGHT */ return "ber_MA";
    case LANG_TAMIL:
      return "ta"; /* Ambiguous: could be "ta_IN" or "ta_LK" or "ta_SG".  */
    case LANG_TATAR: return "tt_RU";
    case LANG_TELUGU: return "te_IN";
    case LANG_THAI: return "th_TH";
    case 0x51: /* TIBETAN */ return "bo_CN";
    case 0x73: /* TIGRINYA */ return "ti_ET";
    case 0x31: /* TSONGA */ return "ts_ZA";
    case LANG_TURKISH: return "tr_TR";
    case 0x42: /* TURKMEN */ return "tk_TM";
    case LANG_UKRAINIAN: return "uk_UA";
    case LANG_URDU:
      switch (sub)
	{
	case SUBLANG_URDU_PAKISTAN: return "ur_PK";
	case SUBLANG_URDU_INDIA: return "ur_IN";
	}
      return "ur";
    case LANG_UZBEK:
      switch (sub)
	{
	/* FIXME: Adjust this when Uzbek locales appear on Unix.  */
	case SUBLANG_UZBEK_LATIN: return "uz_UZ@latin";
	case SUBLANG_UZBEK_CYRILLIC: return "uz_UZ@cyrillic";
	}
      return "uz";
    case 0x33: /* VENDA */ return "ven_ZA";
    case LANG_VIETNAMESE: return "vi_VN";
    case 0x52: /* WELSH */ return "cy_GB";
    case 0x34: /* XHOSA */ return "xh_ZA";
    case 0x78: /* YI */ return "sit_CN";
    case 0x3d: /* YIDDISH */ return "yi_IL";
    case 0x6a: /* YORUBA */ return "yo_NG";
    case 0x35: /* ZULU */ return "zu_ZA";
    default: return "C";
    }

#endif
}