Command prefixes

So I'm trying to make a script that follows a few command prefixes (like /song next or /song prev). But I'm not sure how these commands work (as in how to do them). Looking at some other scripts that have done these before, I see you have to set a list that has the command prefix, but what about the rest of the message?

So basically, how do I mage a /prefix command work?

the '/' or '!' is just part of the instruction. I don't think any scripts actually filter for that. Now. /xxx denotes a subchannel. don't put any numbers in the / command.

My stuff, when I need a Channel 0 command uses a '!' prefix.
like !fly or !s (num).

It's just parsing.

llGetSubString() and llSubStringIndex() are useful here.

Here's a quick example:

default
 {
 	state_entry()
 	{
 		llListen(0, "", llGetOwner(), ""); // Meh, don't do this for real if you can help it.
 	}
 
 	listen(integer chan, string name, key id, string msg)
 	{
 	   msg = llToLower(msg); //doing this lets the user mix-n-match case.
 		if( llGetSubString(msg, 0, 6) == "/speed ") // From the start(0) to the 6th position
 		{
     		string cmd = llGetSubString(msg, 7, -1); // From the 7th position to the end
 			if( cmd == "full" )
 			{
 				// set speed to full
 			}
 			else if( cmd == "half" )
 			{
 				// set speed to half
 			}
 		}
 		else if ( llGetSubString(msg, 0, 6) == "/color ")
 		{
 			vector col = (vector)llGetSubString(msg, 7, -1);
 		}
 	}
 }

Note that I've not compiled this. Just an example.

okay this does help... although the script I'm thinking of... IS going to probabbly 'cause a ton of lag (because of listening on channel 0).

Regardless, I get the point! Thanks, this helps me soo much!! I'll update to tell you guys what I've done/how

Unless it absolutely, definitely, always MUST listen on channel 0 can I suggest another channel. /9 is a nice one (easy to type and remember for people) and there are other nice numbers (someone I know uses their phone number as their personal chat to script channel, they're used to typing the numbers in after all!).

There are times that channel 0 must be used, but generally if you can get away without it I would.