This will add a small button attached to the chatframe which opens the ChatCopy-frame (as seen on the screenshot). You can copy'n'paste text from there like IPs or links or whatever ;) (note: [Ctrl]+[C] copies the text to the windows clipboard in case you didn't know. [Ctrl]+[V] will paste the text)

I made this because it is really annoying if someone gives you a link or an ip for voicechat in WoW since you cannot copy it from the chat window.