help tokenizing slash command args

Vardelm · 07-22-10, 09:24 AM

I need some help creating a slash command that uses 4 arguments. I want the command to look something like this:

/setcoe Searing Totem, Stoneclaw Totem, Healing Stream Totem, Grounding Totem

The idea here is to pass these arguments into a function that will set Call of Elements to use these totems. I already have that function written, so I think I'm OK there. I just need to pass some values to it so I can test it.

Here's the code for the slash command I've been working on thus far:

Code:

----------------------------------------------------------------------------
SLASH_TFSETCOE1 = "/setcoe"
function TF_SetCallOfElements(args)
	
	fireTotem, earthTotem, waterTotem, airTotem = strmatch(args, "%s(%a+),%s(%a+),%s(%a+),%s(%a+),%s", 1)
	
	print("Fire totem is " .. tostring(fireTotem) )
	print("Earth totem is " .. earthTotem)
	print("Water totem is " .. waterTotem)
	print("Air totem is " .. airTotem)
	
	TF_SetCall("Call of Elements", fireTotem, earthTotem, waterTotem, airTotem)
end
SlashCmdList["TFSETCOE"] = TF_SetCallOfElements
----------------------------------------------------------------------------

The line where I'm doing the pattern matching w/ strmatch() is pretty obviously incorrect at the moment. I think that's the line I need help with. The print() lines are in there just for testing. When I use the /setcoe command in a macro in game, all I get out right now is "Fire totem is nil" in my chat, so it seems that the slash command itself is working, but I'm not parsing the arguments correctly.

Help?

Xrystal · 07-22-10, 10:24 AM

This is how I deal with all my slash commands but for your purposes it may need a change due to the multiple word statements.

Code:

local function SlashCommands(msg)
  local args = {};
  for word in string.gmatch(msg,"[^%s]+") do
    table.insert(args,word);
  end

Try that and see what args[1] to args[#args] displays for you. It might be that you will need to add the "Totem" part of the name yourself but for localisation it may not be ideal. I haven't quite got the understanding of the gmatch statement down yet but I know this works with single word arguments.

Code:

for idx = 1,#args do
  print(args[idx])
end

Saiket · 07-22-10, 01:15 PM

Originally Posted by Xrystal

Code:

local function SlashCommands(msg)
  local args = {};
  for word in string.gmatch(msg,"[^%s]+") do
    table.insert(args,word);
  end

If you modify that gmatch pattern just slightly, it can catch whole totem names:

Code:

for word in string.gmatch(msg,"%s*([^,]*[^%s,])%s*") do

Xrystal · 07-22-10, 01:39 PM

Ooh, cool. Thanks Saiket .. *copies to text file for future reference*