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Improved Locales.system() method according to the locale docs

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Observer KRypt0n_ 2022-01-29 15:03:59 +02:00
parent 8c4c41fa3b
commit ebfb8b4db2
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1 changed files with 19 additions and 5 deletions
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24
src/ts/launcher/Locales.ts
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@ -44,17 +44,31 @@ export default class Locales
}
/**
* Get system-used ($LANG) locale name, or {fallback}
* Get system-used ($LC_ALL / $LC_MESSAGES / $LANG) locale name, or {fallback}
* if system-used locale is not supported
*
* From "man locale.7":
*
* 1. If there is a non-null environment variable LC_ALL, the value of LC_ALL is used.
* 2. If an environment variable with the same name as one of the categories above exists and is non-null, its value is used for that category.
* 3. If there is a non-null environment variable LANG, the value of LANG is used.
*/
public static system(fallback: AvailableLocales = 'en-us'): Promise<AvailableLocales>
{
return new Promise(async (resolve) => {
let locale = await Neutralino.os.getEnv('LANG');
locale = locale.substring(0, locale.indexOf('.')).toLocaleLowerCase().replace('_', '-');
let locale = await Neutralino.os.getEnv('LC_ALL');
resolve(this.fallback(locale as AvailableLocales, fallback));
// If $LC_ALL is empty - trying to get $LC_MESSAGES
if (!locale)
locale = await Neutralino.os.getEnv('LC_MESSAGES');
// If $LC_MESSAGES is empty - getting $LANG
// If it's empty - than {fallback} will be used by the this.fallback() method
if (!locale)
locale = await Neutralino.os.getEnv('LANG');
// "en_US.UTF-8" -> "en-us"
resolve(this.fallback(locale.substring(0, locale.indexOf('.')).toLowerCase().replace('_', '-') as AvailableLocales, fallback));
});
}