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96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
// +build darwin,!ios
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package locale
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import (
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"fmt"
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"os/exec"
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"regexp"
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"strings"
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"syscall"
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)
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func execCommand(cmd string, args ...string) (status int, out []byte, err error) {
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status = -1
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command := exec.Command(cmd, args...)
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// Execute the command and get the standard and error outputs
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out, err = command.CombinedOutput()
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if err != nil {
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return
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}
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// Check the status code
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if w, ok := command.ProcessState.Sys().(syscall.WaitStatus); ok {
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status = w.ExitStatus()
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}
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return
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}
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// GetLocale retrieves the IETF BCP 47 language tag set on the system.
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func GetLocale() (string, error) {
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_, output, err := execCommand("defaults", "read", "-g", "AppleLocale")
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if err != nil {
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return "", fmt.Errorf("cannot determine locale: %v (output: %s)", err, output)
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}
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return strings.TrimRight(strings.Replace(string(output), "_", "-", 1), "\n"), nil
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}
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// appleLanguagesRegex is used to parse the output of "defaults read -g AppleLanguages"
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// e.g.:
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// (
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// "en-US",
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// "fr-FR",
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// "ja-JP"
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// )
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var appleLanguagesRegex = regexp.MustCompile(`"([a-z]{2}-[A-Z]{2})"`)
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// GetLocales retrieves the IETF BCP 47 language tags set on the system.
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func GetLocales() ([]string, error) {
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_, output, err := execCommand("defaults", "read", "-g", "AppleLanguages")
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if err != nil {
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return nil, fmt.Errorf("cannot determine locale: %v (output: %s)", err, output)
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}
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matches := appleLanguagesRegex.FindAllStringSubmatch(string(output), -1)
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if len(matches) == 0 {
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return nil, fmt.Errorf("invalid output from \"defaults read -g AppleLanguages\": %s", output)
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}
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locales := make([]string, 0, len(matches))
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for _, match := range matches {
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locales = append(locales, match[1])
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}
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return locales, nil
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}
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// GetLanguage retrieves the IETF BCP 47 language tag set on the system and
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// returns the language part of the tag.
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func GetLanguage() (string, error) {
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language := ""
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locale, err := GetLocale()
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if err == nil {
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language, _ = splitLocale(locale)
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}
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return language, err
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}
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// GetRegion retrieves the IETF BCP 47 language tag set on the system and
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// returns the region part of the tag.
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func GetRegion() (string, error) {
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region := ""
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locale, err := GetLocale()
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if err == nil {
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_, region = splitLocale(locale)
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}
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return region, err
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}
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