Handle ’ and ' behaviors for 4->5->6

Gen5 does not use the slanted apostrophe for anything. 4->5 converts to ' for both strings.
Gen6 fixes all to be slanted. Even nicknames.
Importing to HOME (PK7, GO) resets nicknames, and the default name is not slanted. Nicknames/OTs are unaltered; again, only the "default" species name is wrong.

Closes #4066

PKHeX.Core/Legality/Encounters/Templates/GO/EncounterSlot8GO.cs

@@ -139,7 +139,7 @@ public PKM ConvertToPKM(ITrainerInfo tr, EncounterCriteria criteria)
         }
         SetPINGA(pk, criteria);
         EncounterUtil.SetEncounterMoves(pk, Version, LevelMin);
-        pk.Nickname = SpeciesName.GetSpeciesNameGeneration(Species, lang, Generation);
+        pk.Nickname = SpeciesName.GetSpeciesNameImportHOME(Species, lang, Generation);
         SetEncounterMoves(pk, LevelMin);
 
         if (pk is IScaledSize s2)

PKHeX.Core/Legality/Encounters/Templates/Gen3/EncounterTrade3.cs

@@ -186,6 +186,8 @@ public bool IsNicknameMatch(PKM pk, ReadOnlySpan<char> nickname, int language)
 
         Span<char> tmp = stackalloc char[name.Length];
         StringConverter345.TransferGlyphs34(name, language, tmp);
+        if (pk.Context == EntityContext.Gen5)
+            StringConverter345.TransferGlyphs45(tmp); // Apostrophe ' vs ’
         return nickname.SequenceEqual(tmp);
     }
 

PKHeX.Core/PKM/HOME/GameDataPK8.cs

@@ -114,7 +114,7 @@ public void CopyFrom(PK7 pk, PKH pkh)
 
         pkh.MarkingValue &= 0b1111_1111_1111;
         if (!pk.IsNicknamed)
-            pkh.Nickname = SpeciesName.GetSpeciesNameGeneration(pk.Species, pk.Language, 8);
+            pkh.Nickname = SpeciesName.GetSpeciesNameImportHOME(pk.Species, pk.Language, 8);
         if (FormInfo.IsTotemForm(pk.Species, pk.Form))
             pkh.Form = FormInfo.GetTotemBaseForm(pk.Species, pk.Form);
     }

PKHeX.Core/PKM/Strings/StringConverter345.cs

@@ -100,6 +100,8 @@ public static void TransferGlyphs45(Span<char> input)
         {
             if (IsInvalid45(input[i]))
                 input[i] = '?';
+            if (input[i] == '’') // Farfetch’d and CH’DING nicknames
+                input[i] = '\''; // Wrong apostrophe, nice. Only is corrected when converted to Gen6.
         }
     }
 
@@ -120,6 +122,8 @@ public static void TransferGlyphs56(Span<byte> input)
             var c = ReadUInt16LittleEndian(span);
             if (IsPrivateUseChar(c))
                 WriteUInt16LittleEndian(span, GetMigratedPrivateChar(c));
+            else if (c is '\'') // Fix all apostrophes. ' -> ’
+                WriteUInt16LittleEndian(span, '’');
         }
     }
 

PKHeX.Core/PKM/Util/SpeciesName.cs

@@ -62,8 +62,8 @@ public static class SpeciesName
         var result = new Dictionary<int, ushort>[names.Count];
         for (int i = 0; i < result.Length; i++)
         {
-            var dict = new Dictionary<int, ushort>();
             var speciesList = names[i];
+            var dict = new Dictionary<int, ushort>(speciesList.Count - 1);
             for (ushort species = 1; species < speciesList.Count; species++)
             {
                 var name = speciesList[species];
@@ -97,6 +97,8 @@ public static string GetSpeciesName(ushort species, int language)
         return arr[species];
     }
 
+    private static bool IsApostropheFarfetchdLanguage(int language) => language is 2 or 4 or 7;
+
     /// <summary>
     /// Gets a Pokémon's default name for the desired language ID and generation.
     /// </summary>
@@ -107,10 +109,26 @@ public static string GetSpeciesName(ushort species, int language)
     public static string GetSpeciesNameGeneration(ushort species, int language, byte generation) => generation switch
     {
         <= 4 => GetSpeciesName1234(species, language, generation),
+        5 when species is (int)Species.Farfetchd && IsApostropheFarfetchdLanguage(language) => "Farfetch'd", // Gen5 does not have slanted apostrophes.
         7 when language == (int) LanguageID.ChineseS => GetSpeciesName7ZH(species, language),
         _ => GetSpeciesName(species, language),
     };
 
+    /// <inheritdoc cref="GetSpeciesNameGeneration"/>
+    /// <summary>
+    /// Gets the initial Species name for HOME imports.
+    /// </summary>
+    public static string GetSpeciesNameImportHOME(ushort species, int language, byte generation)
+    {
+        // Default fetched names have the wrong apostrophes.
+        var result = GetSpeciesNameGeneration(species, language, generation);
+        if (species is (int)Species.Farfetchd && IsApostropheFarfetchdLanguage(language))
+            return "Farfetch'd";
+        if (species is (int)Species.Sirfetchd && IsApostropheFarfetchdLanguage(language))
+            return "Sirfetch'd";
+        return result;
+    }
+
     /// <summary>
     /// Gets a Pokémon's egg name for the desired language ID and generation.
     /// </summary>