llfindlocale.cpp
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- /**
- * @file llfindlocale.cpp
- * @brief Detect system language setting
- *
- * $LicenseInfo:firstyear=2008&license=viewergpl$
- *
- * Copyright (c) 2008-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- /* Yes, this was originally C code. */
- #include "linden_common.h"
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
- #ifdef WIN32
- #include <windows.h>
- #include <winnt.h>
- #endif
- #include "llfindlocale.h"
- static int
- is_lcchar(const int c) {
- return isalnum(c);
- }
- static void
- lang_country_variant_from_envstring(const char *str,
- char **lang,
- char **country,
- char **variant) {
- int end = 0;
- int start;
- /* get lang, if any */
- start = end;
- while (is_lcchar(str[end])) {
- ++end;
- }
- if (start != end) {
- int i;
- int len = end - start;
- char *s = (char*)malloc(len + 1);
- for (i=0; i<len; ++i) {
- s[i] = tolower(str[start + i]);
- }
- s[i] = ' ';
- *lang = s;
- } else {
- *lang = NULL;
- }
- if (str[end] && str[end]!=':') { /* not at end of str */
- ++end;
- }
- /* get country, if any */
- start = end;
- while (is_lcchar(str[end])) {
- ++end;
- }
- if (start != end) {
- int i;
- int len = end - start;
- char *s = (char*)malloc(len + 1);
- for (i=0; i<len; ++i) {
- s[i] = toupper(str[start + i]);
- }
- s[i] = ' ';
- *country = s;
- } else {
- *country = NULL;
- }
- if (str[end] && str[end]!=':') { /* not at end of str */
- ++end;
- }
- /* get variant, if any */
- start = end;
- while (str[end] && str[end]!=':') {
- ++end;
- }
- if (start != end) {
- int i;
- int len = end - start;
- char *s = (char*)malloc(len + 1);
- for (i=0; i<len; ++i) {
- s[i] = str[start + i];
- }
- s[i] = ' ';
- *variant = s;
- } else {
- *variant = NULL;
- }
- }
- static int
- accumulate_locstring(const char *str, FL_Locale *l) {
- char *lang = NULL;
- char *country = NULL;
- char *variant = NULL;
- if (str) {
- lang_country_variant_from_envstring(str, &lang, &country, &variant);
- if (lang) {
- l->lang = lang;
- l->country = country;
- l->variant = variant;
- return 1;
- }
- }
- free(lang); free(country); free(variant);
- return 0;
- }
- static int
- accumulate_env(const char *name, FL_Locale *l) {
- char *env;
- char *lang = NULL;
- char *country = NULL;
- char *variant = NULL;
- env = getenv(name);
- if (env) {
- return accumulate_locstring(env, l);
- }
- free(lang); free(country); free(variant);
- return 0;
- }
- static void
- canonise_fl(FL_Locale *l) {
- /* this function fixes some common locale-specifying mistakes */
- /* en_UK -> en_GB */
- if (l->lang && 0 == strcmp(l->lang, "en")) {
- if (l->country && 0 == strcmp(l->country, "UK")) {
- free((void*)l->country);
- l->country = strdup("GB");
- }
- }
- /* ja_JA -> ja_JP */
- if (l->lang && 0 == strcmp(l->lang, "ja")) {
- if (l->country && 0 == strcmp(l->country, "JA")) {
- free((void*)l->country);
- l->country = strdup("JP");
- }
- }
- }
- #ifdef WIN32
- #include <stdio.h>
- #define ML(pn,sn) MAKELANGID(LANG_##pn, SUBLANG_##pn##_##sn)
- #define MLN(pn) MAKELANGID(LANG_##pn, SUBLANG_DEFAULT)
- #define RML(pn,sn) MAKELANGID(LANG_##pn, SUBLANG_##sn)
- struct IDToCode {
- LANGID id;
- char* code;
- };
- static const IDToCode both_to_code[] = {
- {ML(ENGLISH,US), "en_US.ISO_8859-1"},
- {ML(ENGLISH,CAN), "en_CA"}, /* english / canadian */
- {ML(ENGLISH,UK), "en_GB"},
- {ML(ENGLISH,EIRE), "en_IE"},
- {ML(ENGLISH,AUS), "en_AU"},
- {MLN(GERMAN), "de_DE"},
- {MLN(SPANISH), "es_ES"},
- {ML(SPANISH,MEXICAN), "es_MX"},
- {MLN(FRENCH), "fr_FR"},
- {ML(FRENCH,CANADIAN), "fr_CA"},
- {ML(FRENCH,BELGIAN), "fr_BE"}, /* ? */
- {ML(DUTCH,BELGIAN), "nl_BE"}, /* ? */
- {ML(PORTUGUESE,BRAZILIAN), "pt_BR"},
- {MLN(PORTUGUESE), "pt_PT"},
- {MLN(SWEDISH), "sv_SE"},
- {ML(CHINESE,HONGKONG), "zh_HK"},
- /* these are machine-generated and not yet verified */
- {RML(AFRIKAANS,DEFAULT), "af_ZA"},
- {RML(ALBANIAN,DEFAULT), "sq_AL"},
- {RML(ARABIC,ARABIC_ALGERIA), "ar_DZ"},
- {RML(ARABIC,ARABIC_BAHRAIN), "ar_BH"},
- {RML(ARABIC,ARABIC_EGYPT), "ar_EG"},
- {RML(ARABIC,ARABIC_IRAQ), "ar_IQ"},
- {RML(ARABIC,ARABIC_JORDAN), "ar_JO"},
- {RML(ARABIC,ARABIC_KUWAIT), "ar_KW"},
- {RML(ARABIC,ARABIC_LEBANON), "ar_LB"},
- {RML(ARABIC,ARABIC_LIBYA), "ar_LY"},
- {RML(ARABIC,ARABIC_MOROCCO), "ar_MA"},
- {RML(ARABIC,ARABIC_OMAN), "ar_OM"},
- {RML(ARABIC,ARABIC_QATAR), "ar_QA"},
- {RML(ARABIC,ARABIC_SAUDI_ARABIA), "ar_SA"},
- {RML(ARABIC,ARABIC_SYRIA), "ar_SY"},
- {RML(ARABIC,ARABIC_TUNISIA), "ar_TN"},
- {RML(ARABIC,ARABIC_UAE), "ar_AE"},
- {RML(ARABIC,ARABIC_YEMEN), "ar_YE"},
- {RML(ARMENIAN,DEFAULT), "hy_AM"},
- {RML(AZERI,AZERI_CYRILLIC), "az_AZ"},
- {RML(AZERI,AZERI_LATIN), "az_AZ"},
- {RML(BASQUE,DEFAULT), "eu_ES"},
- {RML(BELARUSIAN,DEFAULT), "be_BY"},
- /*{RML(BRETON,DEFAULT), "br_FR"},*/
- {RML(BULGARIAN,DEFAULT), "bg_BG"},
- {RML(CATALAN,DEFAULT), "ca_ES"},
- {RML(CHINESE,CHINESE_HONGKONG), "zh_HK"},
- {RML(CHINESE,CHINESE_MACAU), "zh_MO"},
- {RML(CHINESE,CHINESE_SIMPLIFIED), "zh_CN"},
- {RML(CHINESE,CHINESE_SINGAPORE), "zh_SG"},
- {RML(CHINESE,CHINESE_TRADITIONAL), "zh_TW"},
- /*{RML(CORNISH,DEFAULT), "kw_GB"},*/
- {RML(CZECH,DEFAULT), "cs_CZ"},
- {RML(DANISH,DEFAULT), "da_DK"},
- {RML(DUTCH,DUTCH), "nl_NL"},
- {RML(DUTCH,DUTCH_BELGIAN), "nl_BE"},
- /*{RML(DUTCH,DUTCH_SURINAM), "nl_SR"},*/
- {RML(ENGLISH,ENGLISH_AUS), "en_AU"},
- {RML(ENGLISH,ENGLISH_BELIZE), "en_BZ"},
- {RML(ENGLISH,ENGLISH_CAN), "en_CA"},
- {RML(ENGLISH,ENGLISH_CARIBBEAN), "en_CB"},
- {RML(ENGLISH,ENGLISH_EIRE), "en_IE"},
- {RML(ENGLISH,ENGLISH_JAMAICA), "en_JM"},
- {RML(ENGLISH,ENGLISH_NZ), "en_NZ"},
- {RML(ENGLISH,ENGLISH_PHILIPPINES), "en_PH"},
- {RML(ENGLISH,ENGLISH_SOUTH_AFRICA), "en_ZA"},
- {RML(ENGLISH,ENGLISH_TRINIDAD), "en_TT"},
- {RML(ENGLISH,ENGLISH_UK), "en_GB"},
- {RML(ENGLISH,ENGLISH_US), "en_US"},
- {RML(ENGLISH,ENGLISH_ZIMBABWE), "en_ZW"},
- /*{RML(ESPERANTO,DEFAULT), "eo_"},*/
- {RML(ESTONIAN,DEFAULT), "et_EE"},
- {RML(FAEROESE,DEFAULT), "fo_FO"},
- {RML(FARSI,DEFAULT), "fa_IR"},
- {RML(FINNISH,DEFAULT), "fi_FI"},
- {RML(FRENCH,FRENCH), "fr_FR"},
- {RML(FRENCH,FRENCH_BELGIAN), "fr_BE"},
- {RML(FRENCH,FRENCH_CANADIAN), "fr_CA"},
- {RML(FRENCH,FRENCH_LUXEMBOURG), "fr_LU"},
- {RML(FRENCH,FRENCH_MONACO), "fr_MC"},
- {RML(FRENCH,FRENCH_SWISS), "fr_CH"},
- /*{RML(GAELIC,GAELIC), "ga_IE"},*/
- /*{RML(GAELIC,GAELIC_MANX), "gv_GB"},*/
- /*{RML(GAELIC,GAELIC_SCOTTISH), "gd_GB"},*/
- /*{RML(GALICIAN,DEFAULT), "gl_ES"},*/
- {RML(GEORGIAN,DEFAULT), "ka_GE"},
- {RML(GERMAN,GERMAN), "de_DE"},
- {RML(GERMAN,GERMAN_AUSTRIAN), "de_AT"},
- {RML(GERMAN,GERMAN_LIECHTENSTEIN), "de_LI"},
- {RML(GERMAN,GERMAN_LUXEMBOURG), "de_LU"},
- {RML(GERMAN,GERMAN_SWISS), "de_CH"},
- {RML(GREEK,DEFAULT), "el_GR"},
- {RML(GUJARATI,DEFAULT), "gu_IN"},
- {RML(HEBREW,DEFAULT), "he_IL"},
- {RML(HINDI,DEFAULT), "hi_IN"},
- {RML(HUNGARIAN,DEFAULT), "hu_HU"},
- {RML(ICELANDIC,DEFAULT), "is_IS"},
- {RML(INDONESIAN,DEFAULT), "id_ID"},
- {RML(ITALIAN,ITALIAN), "it_IT"},
- {RML(ITALIAN,ITALIAN_SWISS), "it_CH"},
- {RML(JAPANESE,DEFAULT), "ja_JP"},
- {RML(KANNADA,DEFAULT), "kn_IN"},
- {RML(KAZAK,DEFAULT), "kk_KZ"},
- {RML(KONKANI,DEFAULT), "kok_IN"},
- {RML(KOREAN,KOREAN), "ko_KR"},
- /*{RML(KYRGYZ,DEFAULT), "ky_KG"},*/
- {RML(LATVIAN,DEFAULT), "lv_LV"},
- {RML(LITHUANIAN,LITHUANIAN), "lt_LT"},
- {RML(MACEDONIAN,DEFAULT), "mk_MK"},
- {RML(MALAY,MALAY_BRUNEI_DARUSSALAM), "ms_BN"},
- {RML(MALAY,MALAY_MALAYSIA), "ms_MY"},
- {RML(MARATHI,DEFAULT), "mr_IN"},
- /*{RML(MONGOLIAN,DEFAULT), "mn_MN"},*/
- {RML(NORWEGIAN,NORWEGIAN_BOKMAL), "nb_NO"},
- {RML(NORWEGIAN,NORWEGIAN_NYNORSK), "nn_NO"},
- {RML(POLISH,DEFAULT), "pl_PL"},
- {RML(PORTUGUESE,PORTUGUESE), "pt_PT"},
- {RML(PORTUGUESE,PORTUGUESE_BRAZILIAN), "pt_BR"},
- {RML(PUNJABI,DEFAULT), "pa_IN"},
- {RML(ROMANIAN,DEFAULT), "ro_RO"},
- {RML(RUSSIAN,DEFAULT), "ru_RU"},
- {RML(SANSKRIT,DEFAULT), "sa_IN"},
- {RML(SERBIAN,DEFAULT), "hr_HR"},
- {RML(SERBIAN,SERBIAN_CYRILLIC), "sr_SP"},
- {RML(SERBIAN,SERBIAN_LATIN), "sr_SP"},
- {RML(SLOVAK,DEFAULT), "sk_SK"},
- {RML(SLOVENIAN,DEFAULT), "sl_SI"},
- {RML(SPANISH,SPANISH), "es_ES"},
- {RML(SPANISH,SPANISH_ARGENTINA), "es_AR"},
- {RML(SPANISH,SPANISH_BOLIVIA), "es_BO"},
- {RML(SPANISH,SPANISH_CHILE), "es_CL"},
- {RML(SPANISH,SPANISH_COLOMBIA), "es_CO"},
- {RML(SPANISH,SPANISH_COSTA_RICA), "es_CR"},
- {RML(SPANISH,SPANISH_DOMINICAN_REPUBLIC), "es_DO"},
- {RML(SPANISH,SPANISH_ECUADOR), "es_EC"},
- {RML(SPANISH,SPANISH_EL_SALVADOR), "es_SV"},
- {RML(SPANISH,SPANISH_GUATEMALA), "es_GT"},
- {RML(SPANISH,SPANISH_HONDURAS), "es_HN"},
- {RML(SPANISH,SPANISH_MEXICAN), "es_MX"},
- {RML(SPANISH,SPANISH_MODERN), "es_ES"},
- {RML(SPANISH,SPANISH_NICARAGUA), "es_NI"},
- {RML(SPANISH,SPANISH_PANAMA), "es_PA"},
- {RML(SPANISH,SPANISH_PARAGUAY), "es_PY"},
- {RML(SPANISH,SPANISH_PERU), "es_PE"},
- {RML(SPANISH,SPANISH_PUERTO_RICO), "es_PR"},
- {RML(SPANISH,SPANISH_URUGUAY), "es_UY"},
- {RML(SPANISH,SPANISH_VENEZUELA), "es_VE"},
- {RML(SWAHILI,DEFAULT), "sw_KE"},
- {RML(SWEDISH,SWEDISH), "sv_SE"},
- {RML(SWEDISH,SWEDISH_FINLAND), "sv_FI"},
- /*{RML(SYRIAC,DEFAULT), "syr_SY"},*/
- {RML(TAMIL,DEFAULT), "ta_IN"},
- {RML(TATAR,DEFAULT), "tt_TA"},
- {RML(TELUGU,DEFAULT), "te_IN"},
- {RML(THAI,DEFAULT), "th_TH"},
- {RML(TURKISH,DEFAULT), "tr_TR"},
- {RML(UKRAINIAN,DEFAULT), "uk_UA"},
- {RML(URDU,URDU_PAKISTAN), "ur_PK"},
- {RML(UZBEK,UZBEK_CYRILLIC), "uz_UZ"},
- {RML(UZBEK,UZBEK_LATIN), "uz_UZ"},
- {RML(VIETNAMESE,DEFAULT), "vi_VN"},
- /*{RML(WALON,DEFAULT), "wa_BE"},*/
- /*{RML(WELSH,DEFAULT), "cy_GB"},*/
- };
- static const IDToCode primary_to_code[] = {
- {LANG_AFRIKAANS, "af"},
- {LANG_ARABIC, "ar"},
- {LANG_AZERI, "az"},
- {LANG_BULGARIAN, "bg"},
- /*{LANG_BRETON, "br"},*/
- {LANG_BELARUSIAN, "by"},
- {LANG_CATALAN, "ca"},
- {LANG_CZECH, "cs"},
- /*{LANG_WELSH, "cy"},*/
- {LANG_DANISH, "da"},
- {LANG_GERMAN, "de"},
- {LANG_GREEK, "el"},
- {LANG_ENGLISH, "en"},
- /*{LANG_ESPERANTO, "eo"},*/
- {LANG_SPANISH, "es"},
- {LANG_ESTONIAN, "et"},
- {LANG_BASQUE, "eu"},
- {LANG_FARSI, "fa"},
- {LANG_FINNISH, "fi"},
- {LANG_FAEROESE, "fo"},
- {LANG_FRENCH, "fr"},
- /*{LANG_GAELIC, "ga"},*/
- /*{LANG_GALICIAN, "gl"},*/
- {LANG_GUJARATI, "gu"},
- {LANG_HEBREW, "he"},
- {LANG_HINDI, "hi"},
- {LANG_SERBIAN, "hr"},
- {LANG_HUNGARIAN, "hu"},
- {LANG_ARMENIAN, "hy"},
- {LANG_INDONESIAN, "id"},
- {LANG_ITALIAN, "it"},
- {LANG_JAPANESE, "ja"},
- {LANG_GEORGIAN, "ka"},
- {LANG_KAZAK, "kk"},
- {LANG_KANNADA, "kn"},
- {LANG_KOREAN, "ko"},
- /*{LANG_KYRGYZ, "ky"},*/
- {LANG_LITHUANIAN, "lt"},
- {LANG_LATVIAN, "lv"},
- {LANG_MACEDONIAN, "mk"},
- /*{LANG_MONGOLIAN, "mn"},*/
- {LANG_MARATHI, "mr"},
- {LANG_MALAY, "ms"},
- {LANG_NORWEGIAN, "nb"},
- {LANG_DUTCH, "nl"},
- {LANG_NORWEGIAN, "nn"},
- {LANG_NORWEGIAN, "no"},/* unofficial? */
- {LANG_PUNJABI, "pa"},
- {LANG_POLISH, "pl"},
- {LANG_PORTUGUESE, "pt"},
- {LANG_ROMANIAN, "ro"},
- {LANG_RUSSIAN, "ru"},
- {LANG_SLOVAK, "sk"},
- {LANG_SLOVENIAN, "sl"},
- {LANG_ALBANIAN, "sq"},
- {LANG_SERBIAN, "sr"},
- {LANG_SWEDISH, "sv"},
- {LANG_SWAHILI, "sw"},
- {LANG_TAMIL, "ta"},
- {LANG_THAI, "th"},
- {LANG_TURKISH, "tr"},
- {LANG_TATAR, "tt"},
- {LANG_UKRAINIAN, "uk"},
- {LANG_URDU, "ur"},
- {LANG_UZBEK, "uz"},
- {LANG_VIETNAMESE, "vi"},
- /*{LANG_WALON, "wa"},*/
- {LANG_CHINESE, "zh"},
- };
- static int num_primary_to_code = LL_ARRAY_SIZE(primary_to_code);
- static int num_both_to_code = LL_ARRAY_SIZE(both_to_code);
- static const int
- lcid_to_fl(LCID lcid,
- FL_Locale *rtn) {
- LANGID langid = LANGIDFROMLCID(lcid);
- LANGID primary_lang = PRIMARYLANGID(langid);
- /*LANGID sub_lang = SUBLANGID(langid);*/
- int i;
- /* try to find an exact primary/sublanguage combo that we know about */
- for (i=0; i<num_both_to_code; ++i) {
- if (both_to_code[i].id == langid) {
- accumulate_locstring(both_to_code[i].code, rtn);
- return 1;
- }
- }
- /* fallback to just checking the primary language id */
- for (i=0; i<num_primary_to_code; ++i) {
- if (primary_to_code[i].id == primary_lang) {
- accumulate_locstring(primary_to_code[i].code, rtn);
- return 1;
- }
- }
- return 0;
- }
- #endif
- FL_Success
- FL_FindLocale(FL_Locale **locale, FL_Domain domain) {
- FL_Success success = FL_FAILED;
- FL_Locale *rtn = (FL_Locale*)malloc(sizeof(FL_Locale));
- rtn->lang = NULL;
- rtn->country = NULL;
- rtn->variant = NULL;
- #ifdef WIN32
- /* win32 >= mswindows95 */
- {
- LCID lcid = GetThreadLocale();
- if (lcid_to_fl(lcid, rtn)) {
- success = FL_CONFIDENT;
- }
- if (success == FL_FAILED) {
- /* assume US English on mswindows systems unless we know otherwise */
- if (accumulate_locstring("en_US.ISO_8859-1", rtn)) {
- success = FL_DEFAULT_GUESS;
- }
- }
- }
- #else
- /* assume unixoid */
- {
- /* examples: */
- /* sv_SE.ISO_8859-1 */
- /* fr_FR.ISO8859-1 */
- /* no_NO_NB */
- /* no_NO_NY */
- /* no_NO */
- /* de_DE */
- /* try the various vars in decreasing order of authority */
- if (accumulate_env("LC_ALL", rtn) ||
- accumulate_env("LC_MESSAGES", rtn) ||
- accumulate_env("LANG", rtn) ||
- accumulate_env("LANGUAGE", rtn)) {
- success = FL_CONFIDENT;
- }
- if (success == FL_FAILED) {
- /* assume US English on unixoid systems unless we know otherwise */
- if (accumulate_locstring("en_US.ISO_8859-1", rtn)) {
- success = FL_DEFAULT_GUESS;
- }
- }
- }
- #endif
- if (success != FL_FAILED) {
- canonise_fl(rtn);
- }
- *locale = rtn;
- return success;
- }
- void
- FL_FreeLocale(FL_Locale **locale) {
- if (locale) {
- FL_Locale *l = *locale;
- if (l) {
- if (l->lang) {
- free((void*)l->lang);
- }
- if (l->country) {
- free((void*)l->country);
- }
- if (l->variant) {
- free((void*)l->variant);
- }
- free(l);
- *locale = NULL;
- }
- }
- }