alias spam {
var %con = http|www
return $regex([color:red]$1[/color],/\b(?: [color:red]$+[/color] %con [color:red]$+[/color] )\b/Sig)
}
Usage: $spam(<text to check for spamming>)
Of course, that's not really a good idea, since "http" and "www" can appear in a conversation without being spam.