CODEWITHSUNDEEP
c#lua
user1796217
user1796217

Reputation: 33

lua:1: unexpected symbol near 'ï'

More specifically the full error is

../../Scripts/LuaTest.lua:1: unexpected symbol near 'ï'

I have checked the LuaTest.lua file with different editors to include Notepad++ and can not find any extra/hidden characters. I'm at a loss to what could be causing this.
Side note, I'm following this guide: Godpatterns: Scripting with Lua in C#

Here is the main code block:

class Program
{
    static void Main(string[] args)
    {
        Lua lua = new Lua();
        Program program = new Program();

        // register our C# functions
        lua.RegisterFunction("DanSays", program, program.GetType().GetMethod("DanSays"));
        lua.RegisterFunction("ThorSays", program, program.GetType().GetMethod("ThorSays"));

        lua.DoFile("../../Scripts/LuaTest.lua");
        Console.ReadLine();
    }

    public void DanSays(string s)
    {
        Console.WriteLine("Dan Says > " + s);
    }
    public void ThorSays(string s)
    {
        Console.WriteLine("Thor says > " + s);
    }

}

Additionally, here is LuaTest.lua

DanSays("Hey, Thor!");
ThorSays("Hi Dan! You know Thursdays . . . ");
DanSays("*sigh* yeah, Thor, I know Thursdays.");
ThorSays("Named after me you know!");
DanSays("Yeah, I know.");

Upvotes: 3

Views: 7583

Answers (1)

Greg Hewgill
Greg Hewgill

Reputation: 993941

This is likely caused by a Byte Order Mark that is placed at the start of Unicode text files by some text editors. The bytes of the BOM include 0xEF, which is the ISO 8859-1 character code for ï (latin lowercase i with umlaut).

So your guess is correct, there are hidden characters in there. Configure your text editor to not use a BOM when writing text files.

Upvotes: 5

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