Implement bizstring.split()

BizHawk.Client.Common/lua/EmuLuaLibrary.String.cs

@@ -1,10 +1,21 @@
 using System;
+using System.Linq;
+
+using LuaInterface;
+
 namespace BizHawk.Client.Common
 {
 	public class StringLuaLibrary : LuaLibraryBase
 	{
+		private readonly Lua _lua;
+
 		public override string Name { get { return "bizstring"; } }
 
+		public StringLuaLibrary(Lua lua)
+		{
+			_lua = lua;
+		}
+
 		[LuaMethodAttributes(
 			"hex",
 			"Converts the number to a string representation of the hexadecimal value of the given number"
@@ -126,5 +137,24 @@ namespace BizHawk.Client.Common
 		{
 			return str.EndsWith(str2);
 		}
+
+		[LuaMethodAttributes(
+			"split",
+			"Splits str based on separator into a LuaTable. Separator must be one character!. Same functionality as .NET string.Split() using the RemoveEmptyEntries option"
+		)]
+		public LuaTable Split(string str, string separator)
+		{
+			var table = _lua.NewTable();
+			var splitStr = str.Split(
+				new char[] { separator.FirstOrDefault() },
+				StringSplitOptions.RemoveEmptyEntries);
+
+			for(int i = 0; i < splitStr.Length; i++)
+			{
+				table[i] = splitStr[i];
+			}
+
+			return table;
+		}
 	}
 }

BizHawk.Client.EmuHawk/tools/Lua/Libraries/EmuLuaLibrary.cs

@@ -101,7 +101,7 @@ namespace BizHawk.Client.EmuHawk
 			new NesLuaLibrary().LuaRegister(lua, Docs);
 			new SavestateLuaLibrary().LuaRegister(lua, Docs);
 			new SnesLuaLibrary().LuaRegister(lua, Docs);
-			new StringLuaLibrary().LuaRegister(lua, Docs);
+			new StringLuaLibrary(_lua).LuaRegister(lua, Docs);
 			new GameInfoLuaLibrary(_lua).LuaRegister(lua, Docs);
 			Docs.Sort();
 		}