Add dative case function to loc manager (#5510)

* dative

* slipped it

* slipped it twice

Resources/Locale/en-US/_engine_lib.ftl

@@ -20,6 +20,15 @@ zzzz-object-pronoun = { GENDER($ent) ->
    *[neuter] it
    }
 
+# Used internally by the DAT-OBJ() function.
+# Not used in en-US. Created for supporting other languages.
+zzzz-dat-object = { GENDER($ent) ->
+    [male] him
+    [female] her
+    [epicene] them
+   *[neuter] it
+   }
+
 # Used internally by the POSS-PRONOUN() function.
 zzzz-possessive-pronoun = { GENDER($ent) ->
     [male] his

Robust.Shared/Localization/LocalizationManager.Functions.cs

@@ -22,6 +22,7 @@ private void AddBuiltInFunctions(FluentBundle bundle)
             AddCtxFunction(bundle, "GENDER", FuncGender);
             AddCtxFunction(bundle, "SUBJECT", FuncSubject);
             AddCtxFunction(bundle, "OBJECT", FuncObject);
+            AddCtxFunction(bundle, "DAT-OBJ", FuncDatObj);
             AddCtxFunction(bundle, "POSS-ADJ", FuncPossAdj);
             AddCtxFunction(bundle, "POSS-PRONOUN", FuncPossPronoun);
             AddCtxFunction(bundle, "REFLEXIVE", FuncReflexive);
@@ -203,6 +204,16 @@ private ILocValue FuncObject(LocArgs args)
             return new LocValueString(GetString("zzzz-object-pronoun", ("ent", args.Args[0])));
         }
 
+        /// <summary>
+        /// Returns the dative form pronoun for the entity's gender.
+        /// This method is intended for languages with a dative case, where indirect objects
+        /// (e.g., "to him," "for her") require specific forms. Not applicable for en-US locale.
+        /// </summary>
+        private ILocValue FuncDatObj(LocArgs args)
+        {
+            return new LocValueString(GetString("zzzz-dat-object", ("ent", args.Args[0])));
+        }
+
         /// <summary>
         /// Returns the respective possessive adjective (his, her, their, its) for the entity's gender.
         /// </summary>