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etlegacy-libs/findlocale/findlocale.c

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#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#ifdef WIN32
#include <windows.h>
#include <winnt.h>
#endif
#include "findlocale.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 = malloc(len + 1);
for (i=0; i<len; ++i) {
s[i] = tolower(str[start + i]);
}
s[i] = '\0';
*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 = malloc(len + 1);
for (i=0; i<len; ++i) {
s[i] = toupper(str[start + i]);
}
s[i] = '\0';
*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 = malloc(len + 1);
for (i=0; i<len; ++i) {
s[i] = str[start + i];
}
s[i] = '\0';
*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)
typedef struct {
LANGID id;
char* code;
} IDToCode;
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 =
sizeof(primary_to_code) / sizeof(*primary_to_code);
static int num_both_to_code =
sizeof(both_to_code) / sizeof(*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 = 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;
}
}
}
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