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|
package locale
import (
"bufio"
"bytes"
"os/exec"
"strings"
)
var detectors = []detector{
detectViaEnvLanguage,
detectViaEnvLc,
detectViaDefaultsSystem,
}
// detectViaUserDefaultsSystem will detect language via Apple User Defaults System
//
// We will read AppleLocale and AppleLanguages in this order:
// - user AppleLocale
// - user AppleLanguages
// - global AppleLocale
// - global AppleLanguages
//
// ref:
// - Apple Developer Guide: https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/UserDefaults/AboutPreferenceDomains/AboutPreferenceDomains.html
// - Homebrew: https://github.com/Homebrew/brew/pull/7940
func detectViaDefaultsSystem() ([]string, error) {
// Read user's apple locale setting.
m, err := parseDefaultsSystemAppleLocale("-g")
if err == nil {
return m, nil
}
// Read user's apple languages setting.
m, err = parseDefaultsSystemAppleLanguages("-g")
if err == nil {
return m, nil
}
// Read global locale preferences.
m, err = parseDefaultsSystemAppleLocale("/Library/Preferences/.GlobalPreferences")
if err == nil {
return m, nil
}
// Read global language preferences.
m, err = parseDefaultsSystemAppleLanguages("/Library/Preferences/.GlobalPreferences")
if err == nil {
return m, nil
}
return nil, &Error{"detect via defaults system", ErrNotDetected}
}
// parseDefaultsSystemAppleLocale will parse the AppleLocale output.
func parseDefaultsSystemAppleLocale(domain string) ([]string, error) {
cmd := exec.Command("defaults", "read", domain, "AppleLocale")
var out bytes.Buffer
cmd.Stdout = &out
err := cmd.Run()
if err != nil {
return nil, &Error{"detect via user defaults system", err}
}
content := strings.TrimSpace(out.String())
if len(content) == 0 {
return nil, &Error{"detect via defaults system", ErrNotDetected}
}
return []string{content}, nil
}
// parseDefaultsSystemAppleLanguages will parse the AppleLanguages output.
//
// Output should be like:
//
// (
//
// en,
// ja,
// fr,
// de,
// es,
// it,
// pt,
// "pt-PT",
// nl,
// sv,
// nb,
// da,
// fi,
// ru,
// pl,
// "zh-Hans",
// "zh-Hant",
// ko,
// ar,
// cs,
// hu,
// tr
//
// )
func parseDefaultsSystemAppleLanguages(domain string) ([]string, error) {
cmd := exec.Command("defaults", "read", domain, "AppleLanguages")
var out bytes.Buffer
cmd.Stdout = &out
err := cmd.Run()
if err != nil {
return nil, &Error{"detect via user defaults system", err}
}
m := make([]string, 0)
s := bufio.NewScanner(&out)
for s.Scan() {
text := s.Text()
// Ignore "(" and ")"
if !strings.HasPrefix(text, " ") {
continue
}
// Trim all space, " and ,
text = strings.Trim(text, " \",")
// Doing canonicalize
if value, ok := oldAppleLocaleToCanonical[text]; ok {
text = value
}
m = append(m, text)
}
if len(m) == 0 {
return nil, &Error{"detect via user defaults system", ErrNotDetected}
}
return m, nil
}
// oldAppleLocaleToCanonical is borrowed from swift-corelibs-foundation's CFLocaleIdentifier.c
//
// Old Apple devices could return "English" instead of "en-US", this map will make them canonical
//
// refs:
// - CFLocaleIdentifier.c: https://github.com/apple/swift-corelibs-foundation/blob/main/CoreFoundation/Locale.subproj/CFLocaleIdentifier.c
var oldAppleLocaleToCanonical = map[string]string{
"Afrikaans": "af", // # __CFBundleLanguageNamesArray
"Albanian": "sq", // # __CFBundleLanguageNamesArray
"Amharic": "am", // # __CFBundleLanguageNamesArray
"Arabic": "ar", // # __CFBundleLanguageNamesArray
"Armenian": "hy", // # __CFBundleLanguageNamesArray
"Assamese": "as", // # __CFBundleLanguageNamesArray
"Aymara": "ay", // # __CFBundleLanguageNamesArray
"Azerbaijani": "az", // -Arab,-Cyrl,-Latn? # __CFBundleLanguageNamesArray (had 3 entries "Azerbaijani" for "az-Arab", "az-Cyrl", "az-Latn")
"Basque": "eu", // # __CFBundleLanguageNamesArray
"Belarusian": "be", // # handle other names
"Belorussian": "be", // # handle other names
"Bengali": "bn", // # __CFBundleLanguageNamesArray
"Brazilian Portugese": "pt-BR", // # from Installer.app Info.plist IFLanguages key, misspelled
"Brazilian Portuguese": "pt-BR", // # correct spelling for above
"Breton": "br", // # __CFBundleLanguageNamesArray
"Bulgarian": "bg", // # __CFBundleLanguageNamesArray
"Burmese": "my", // # __CFBundleLanguageNamesArray
"Byelorussian": "be", // # __CFBundleLanguageNamesArray
"Catalan": "ca", // # __CFBundleLanguageNamesArray
"Chewa": "ny", // # handle other names
"Chichewa": "ny", // # handle other names
"Chinese": "zh", // -Hans,-Hant? # __CFBundleLanguageNamesArray (had 2 entries "Chinese" for "zh-Hant", "zh-Hans")
"Chinese, Simplified": "zh-Hans", // # from Installer.app Info.plist IFLanguages key
"Chinese, Traditional": "zh-Hant", // # correct spelling for below
"Chinese, Tradtional": "zh-Hant", // # from Installer.app Info.plist IFLanguages key, misspelled
"Croatian": "hr", // # __CFBundleLanguageNamesArray
"Czech": "cs", // # __CFBundleLanguageNamesArray
"Danish": "da", // # __CFBundleLanguageNamesArray
"Dutch": "nl", // # __CFBundleLanguageNamesArray (had 2 entries "Dutch" for "nl", "nl-BE")
"Dzongkha": "dz", // # __CFBundleLanguageNamesArray
"English": "en", // # __CFBundleLanguageNamesArray
"Esperanto": "eo", // # __CFBundleLanguageNamesArray
"Estonian": "et", // # __CFBundleLanguageNamesArray
"Faroese": "fo", // # __CFBundleLanguageNamesArray
"Farsi": "fa", // # __CFBundleLanguageNamesArray
"Finnish": "fi", // # __CFBundleLanguageNamesArray
"Flemish": "nl-BE", // # handle other names
"French": "fr", // # __CFBundleLanguageNamesArray
"Galician": "gl", // # __CFBundleLanguageNamesArray
"Gallegan": "gl", // # handle other names
"Georgian": "ka", // # __CFBundleLanguageNamesArray
"German": "de", // # __CFBundleLanguageNamesArray
"Greek": "el", // # __CFBundleLanguageNamesArray (had 2 entries "Greek" for "el", "grc")
"Greenlandic": "kl", // # __CFBundleLanguageNamesArray
"Guarani": "gn", // # __CFBundleLanguageNamesArray
"Gujarati": "gu", // # __CFBundleLanguageNamesArray
"Hawaiian": "haw", // # handle new languages
"Hebrew": "he", // # __CFBundleLanguageNamesArray
"Hindi": "hi", // # __CFBundleLanguageNamesArray
"Hungarian": "hu", // # __CFBundleLanguageNamesArray
"Icelandic": "is", // # __CFBundleLanguageNamesArray
"Indonesian": "id", // # __CFBundleLanguageNamesArray
"Inuktitut": "iu", // # __CFBundleLanguageNamesArray
"Irish": "ga", // # __CFBundleLanguageNamesArray (had 2 entries "Irish" for "ga", "ga-dots")
"Italian": "it", // # __CFBundleLanguageNamesArray
"Japanese": "ja", // # __CFBundleLanguageNamesArray
"Javanese": "jv", // # __CFBundleLanguageNamesArray
"Kalaallisut": "kl", // # handle other names
"Kannada": "kn", // # __CFBundleLanguageNamesArray
"Kashmiri": "ks", // # __CFBundleLanguageNamesArray
"Kazakh": "kk", // # __CFBundleLanguageNamesArray
"Khmer": "km", // # __CFBundleLanguageNamesArray
"Kinyarwanda": "rw", // # __CFBundleLanguageNamesArray
"Kirghiz": "ky", // # __CFBundleLanguageNamesArray
"Korean": "ko", // # __CFBundleLanguageNamesArray
"Kurdish": "ku", // # __CFBundleLanguageNamesArray
"Lao": "lo", // # __CFBundleLanguageNamesArray
"Latin": "la", // # __CFBundleLanguageNamesArray
"Latvian": "lv", // # __CFBundleLanguageNamesArray
"Lithuanian": "lt", // # __CFBundleLanguageNamesArray
"Macedonian": "mk", // # __CFBundleLanguageNamesArray
"Malagasy": "mg", // # __CFBundleLanguageNamesArray
"Malay": "ms", // -Latn,-Arab? # __CFBundleLanguageNamesArray (had 2 entries "Malay" for "ms-Latn", "ms-Arab")
"Malayalam": "ml", // # __CFBundleLanguageNamesArray
"Maltese": "mt", // # __CFBundleLanguageNamesArray
"Manx": "gv", // # __CFBundleLanguageNamesArray
"Marathi": "mr", // # __CFBundleLanguageNamesArray
"Moldavian": "mo", // # __CFBundleLanguageNamesArray
"Mongolian": "mn", // -Mong,-Cyrl? # __CFBundleLanguageNamesArray (had 2 entries "Mongolian" for "mn-Mong", "mn-Cyrl")
"Nepali": "ne", // # __CFBundleLanguageNamesArray
"Norwegian": "nb", // # __CFBundleLanguageNamesArray (had "Norwegian" mapping to "no")
"Nyanja": "ny", // # __CFBundleLanguageNamesArray
"Nynorsk": "nn", // # handle other names (no entry in __CFBundleLanguageNamesArray)
"Oriya": "or", // # __CFBundleLanguageNamesArray
"Oromo": "om", // # __CFBundleLanguageNamesArray
"Panjabi": "pa", // # handle other names
"Pashto": "ps", // # __CFBundleLanguageNamesArray
"Persian": "fa", // # handle other names
"Polish": "pl", // # __CFBundleLanguageNamesArray
"Portuguese": "pt", // # __CFBundleLanguageNamesArray
"Portuguese, Brazilian": "pt-BR", // # handle other names
"Punjabi": "pa", // # __CFBundleLanguageNamesArray
"Pushto": "ps", // # handle other names
"Quechua": "qu", // # __CFBundleLanguageNamesArray
"Romanian": "ro", // # __CFBundleLanguageNamesArray
"Ruanda": "rw", // # handle other names
"Rundi": "rn", // # __CFBundleLanguageNamesArray
"Russian": "ru", // # __CFBundleLanguageNamesArray
"Sami": "se", // # __CFBundleLanguageNamesArray
"Sanskrit": "sa", // # __CFBundleLanguageNamesArray
"Scottish": "gd", // # __CFBundleLanguageNamesArray
"Serbian": "sr", // # __CFBundleLanguageNamesArray
"Simplified Chinese": "zh-Hans", // # handle other names
"Sindhi": "sd", // # __CFBundleLanguageNamesArray
"Sinhalese": "si", // # __CFBundleLanguageNamesArray
"Slovak": "sk", // # __CFBundleLanguageNamesArray
"Slovenian": "sl", // # __CFBundleLanguageNamesArray
"Somali": "so", // # __CFBundleLanguageNamesArray
"Spanish": "es", // # __CFBundleLanguageNamesArray
"Sundanese": "su", // # __CFBundleLanguageNamesArray
"Swahili": "sw", // # __CFBundleLanguageNamesArray
"Swedish": "sv", // # __CFBundleLanguageNamesArray
"Tagalog": "fil", // # __CFBundleLanguageNamesArray
"Tajik": "tg", // # handle other names
"Tajiki": "tg", // # __CFBundleLanguageNamesArray
"Tamil": "ta", // # __CFBundleLanguageNamesArray
"Tatar": "tt", // # __CFBundleLanguageNamesArray
"Telugu": "te", // # __CFBundleLanguageNamesArray
"Thai": "th", // # __CFBundleLanguageNamesArray
"Tibetan": "bo", // # __CFBundleLanguageNamesArray
"Tigrinya": "ti", // # __CFBundleLanguageNamesArray
"Tongan": "to", // # __CFBundleLanguageNamesArray
"Traditional Chinese": "zh-Hant", // # handle other names
"Turkish": "tr", // # __CFBundleLanguageNamesArray
"Turkmen": "tk", // # __CFBundleLanguageNamesArray
"Uighur": "ug", // # __CFBundleLanguageNamesArray
"Ukrainian": "uk", // # __CFBundleLanguageNamesArray
"Urdu": "ur", // # __CFBundleLanguageNamesArray
"Uzbek": "uz", // # __CFBundleLanguageNamesArray
"Vietnamese": "vi", // # __CFBundleLanguageNamesArray
"Welsh": "cy", // # __CFBundleLanguageNamesArray
"Yiddish": "yi", // # __CFBundleLanguageNamesArray
"ar_??": "ar", // # from old MapScriptInfoAndISOCodes
"az.Ar": "az-Arab", // # from old LocaleRefGetPartString
"az.Cy": "az-Cyrl", // # from old LocaleRefGetPartString
"az.La": "az", // # from old LocaleRefGetPartString
"be_??": "be_BY", // # from old MapScriptInfoAndISOCodes
"bn_??": "bn", // # from old LocaleRefGetPartString
"bo_??": "bo", // # from old MapScriptInfoAndISOCodes
"br_??": "br", // # from old MapScriptInfoAndISOCodes
"cy_??": "cy", // # from old MapScriptInfoAndISOCodes
"de-96": "de-1996", // # from old MapScriptInfoAndISOCodes // <1.9>
"de_96": "de-1996", // # from old MapScriptInfoAndISOCodes // <1.9>
"de_??": "de-1996", // # from old MapScriptInfoAndISOCodes
"el.El-P": "grc", // # from old LocaleRefGetPartString
"en-ascii": "en_001", // # from earlier version of tables in this file!
"en_??": "en_001", // # from old MapScriptInfoAndISOCodes
"eo_??": "eo", // # from old MapScriptInfoAndISOCodes
"es_??": "es_419", // # from old MapScriptInfoAndISOCodes
"es_XL": "es_419", // # from earlier version of tables in this file!
"fr_??": "fr_001", // # from old MapScriptInfoAndISOCodes
"ga-dots": "ga-Latg", // # from earlier version of tables in this file! // <1.8>
"ga-dots_IE": "ga-Latg_IE", // # from earlier version of tables in this file! // <1.8>
"ga.Lg": "ga-Latg", // # from old LocaleRefGetPartString // <1.8>
"ga.Lg_IE": "ga-Latg_IE", // # from old LocaleRefGetPartString // <1.8>
"gd_??": "gd", // # from old MapScriptInfoAndISOCodes
"gv_??": "gv", // # from old MapScriptInfoAndISOCodes
"jv.La": "jv", // # logical extension // <1.9>
"jw.La": "jv", // # from old LocaleRefGetPartString
"kk.Cy": "kk", // # from old LocaleRefGetPartString
"kl.La": "kl", // # from old LocaleRefGetPartString
"kl.La_GL": "kl_GL", // # from old LocaleRefGetPartString // <1.9>
"lp_??": "se", // # from old MapScriptInfoAndISOCodes
"mk_??": "mk_MK", // # from old MapScriptInfoAndISOCodes
"mn.Cy": "mn", // # from old LocaleRefGetPartString
"mn.Mn": "mn-Mong", // # from old LocaleRefGetPartString
"ms.Ar": "ms-Arab", // # from old LocaleRefGetPartString
"ms.La": "ms", // # from old LocaleRefGetPartString
"nl-be": "nl-BE", // # from old LocaleRefGetPartString
"nl-be_BE": "nl_BE", // # from old LocaleRefGetPartString
"no-NO": "nb-NO", // # not handled by localeStringPrefixToCanonical
"no-NO_NO": "nb-NO_NO", // # not handled by localeStringPrefixToCanonical
"pa_??": "pa", // # from old LocaleRefGetPartString
"sa.Dv": "sa", // # from old LocaleRefGetPartString
"sl_??": "sl_SI", // # from old MapScriptInfoAndISOCodes
"sr_??": "sr_RS", // # from old MapScriptInfoAndISOCodes // <1.18>
"su.La": "su", // # from old LocaleRefGetPartString
"yi.He": "yi", // # from old LocaleRefGetPartString
"zh-simp": "zh-Hans", // # from earlier version of tables in this file!
"zh-trad": "zh-Hant", // # from earlier version of tables in this file!
"zh.Ha-S": "zh-Hans", // # from old LocaleRefGetPartString
"zh.Ha-S_CN": "zh_CN", // # from old LocaleRefGetPartString
"zh.Ha-T": "zh-Hant", // # from old LocaleRefGetPartString
"zh.Ha-T_TW": "zh_TW", // # from old LocaleRefGetPartString
}
|
