Chat Command Hook

[blackfire88]

Hello,
I am scripting a simple gamemode, and I would like to know how i could add a Lua hook so when the player types a certain thing in chat, things happen. For example:

Player Types /buymenu
Chat Command Is Hidden
Buymenu Opens
End

How would I be able to do this?

[LauScript]

PlayerSay

[blackfire88]

Wow man! Thanks!

[editline]9th September 2011[/editline]

Could I Ask One More Thing.
How Would I Make Colored Chat Appear In The Chatbox?
Could You Show Me An Example Script?

[zzaacckk]

If the messages are predefined you could do something like..

[lua]
if SERVER then
hook.Add("PlayerSay","removeCmd",function(ply,text)
if(string.sub(text,1,1)=="/")then
umsg.Start(ply,"sendCM");
umsg.Float(2);
umsg.End();
return "";
end
end)
else
local CMs = {
{Color(220,50,50), "we are red, ", Color(50,50,220), "now we are blue"},
{Color(220,50,50), "we are blue, ", Color(50,225,50), "now we are green"}
};

function printChat(um)
chat.AddText(unpack(CMs[um:ReadFloat()]));
end
usermessage.Hook("sendCM",printChat);
end
[/lua]

Else you would have to umsg the stuff to print.