| | | 1 | | using System.Globalization; |
| | | 2 | | |
| | | 3 | | namespace ValidateLib.UtilityClasses |
| | | 4 | | { |
| | | 5 | | public class LanguageUtilityClass |
| | | 6 | | { |
| | | 7 | | |
| | | 8 | | public static bool IsCorrectLanguageCode(string bcpTag) |
| | | 9 | | { |
| | 1 | 10 | | if (bcpTag == "und") return true; |
| | 1 | 11 | | return ValidateLanguageTagParts(bcpTag); |
| | | 12 | | } |
| | | 13 | | static bool ValidateLanguageTagParts(string languageTag) |
| | | 14 | | { |
| | | 15 | | // Split the input string into subparts using hyphen as separator |
| | 1 | 16 | | string[] subparts = languageTag.Split('-'); |
| | | 17 | | |
| | | 18 | | // Validate each subpart using the TryGetCultureInfoByIetfLanguageTag method |
| | 1 | 19 | | foreach (string subpart in subparts) |
| | | 20 | | { |
| | 1 | 21 | | if (!TryGetCultureInfoByIetfLanguageTag(subpart, out _)) |
| | | 22 | | { |
| | 1 | 23 | | return false; // Invalid subpart found |
| | | 24 | | } |
| | | 25 | | } |
| | | 26 | | |
| | 1 | 27 | | return true; // All subparts are valid |
| | | 28 | | } |
| | | 29 | | |
| | | 30 | | static bool TryGetCultureInfoByIetfLanguageTag(string subpart, out CultureInfo cultureInfo) |
| | | 31 | | { |
| | | 32 | | try |
| | | 33 | | { |
| | 1 | 34 | | cultureInfo = CultureInfo.GetCultureInfoByIetfLanguageTag(subpart); |
| | 1 | 35 | | return true; |
| | | 36 | | } |
| | 1 | 37 | | catch (CultureNotFoundException) |
| | | 38 | | { |
| | 1 | 39 | | cultureInfo = null; |
| | 1 | 40 | | return false; |
| | | 41 | | } |
| | 1 | 42 | | } |
| | | 43 | | |
| | | 44 | | public static string GetMostGeneralLanguagePart(string languageTag) |
| | | 45 | | { |
| | 1 | 46 | | string[] parts = languageTag.Split("-"); |
| | 1 | 47 | | return parts[0]; |
| | | 48 | | } |
| | | 49 | | |
| | | 50 | | |
| | | 51 | | } |
| | | 52 | | } |