Generation des strings sans twine et generation des tags. Refactor de toutes les commandes strings (Twine, CustomStrings, Tags) dans une commande avec des sous commandes

Sources/Strings/Stringium/StringiumError.swift

@@ -0,0 +1,40 @@
+//
+//  StringToolError.swift
+//  
+//
+//  Created by Thibaut Schmitt on 05/01/2022.
+//
+
+import Foundation
+
+extension Strings {
+    enum StringiumError: Error {
+        case fileNotExists(String)
+        case langsListEmpty
+        case defaultLangsNotInLangs
+        case writeFile(String, String)
+        case langNotDefined(String, String, Bool)
+        
+        var localizedDescription: String {
+            switch self {
+            case .fileNotExists(let filename):
+                return " error:[\(Stringium.toolName)] File \(filename) does not exists "
+                
+            case .langsListEmpty:
+                return " error:[\(Stringium.toolName)] Langs list is empty"
+                
+            case .defaultLangsNotInLangs:
+                return " error:[\(Stringium.toolName)] Langs list does not contains the default lang"
+                
+            case .writeFile(let subErrorDescription, let filename):
+                return " error:[\(Stringium.toolName)] An error occured while writing content to \(filename): \(subErrorDescription)"
+                
+            case .langNotDefined(let lang, let definitionName, let isReference):
+                if isReference {
+                    return " error:[\(Stringium.toolName)] Reference are handled only by TwineTool. Please use it or remove reference from you strings file."
+                }
+                return " error:[\(Stringium.toolName)] Lang \"\(lang)\" not found for \"\(definitionName)\""
+            }
+        }
+    }    
+}