bundleLocale.j

- (CPString)bundleLocaleWithUserLanguage:(CPString)aUserLanguage
{
    var defaultLocale = [self objectForInfoDictionaryKey:@"CPBundleDevelopmentRegion"];
    var availableLocales = [self objectForInfoDictionaryKey:@"CPBundleLocalizedResourceKeys"];
    var bestMatch, myLocale= nil;

    UserLanguage = aUserLanguage;
    
    // First try matching against the UserLanguage
    if (UserLanguage && [UserLanguage length])
    {
        for (var i = 0; i < [availableLocales count]; i++)
        {
            myLocale = availableLocales[i];
                        
            if (UserLanguage && (myLocale == UserLanguage))
            {                
                bestMatch = myLocale;
                
                break;
            }
        }
    }
    
    // No match? Try the browser language
    if (!bestMatch)
    {
        for (var i = 0; i < [availableLocales count]; i++)
        {
            myLocale = availableLocales[i];
                        
            if (myLocale == [self browserLanguage])
            {                
                bestMatch = myLocale;
                
                break;
            }
        }
    }

    // Still nothing? Look for a default, or hope your users understand English. 
    if (!bestMatch)
    {
        bestMatch = ([defaultLocale length]) ? defaultLocale : "en";
    }  
        
    return bestMatch;
}