Tool to manipulate text in web form fields?

Question

I'm looking for a way to manipulate text in form fields. For example, if I have a large textarea "body" field, from my browser I want to be able to highlight a piece of text in that textarea, for example:

www.example.com

And hit a shortcut key to transform it into:

<a href="www.example.com" rel="nofollow">www.example.com</a>

I'm thinking maybe a regex replacer or macro. Is there some kind of free broswer plugin (ideally for firefox) that would allow me to do this?

Answer 1

Ok I was able to do this with AutoHotKeys as suggested by iglvzx. I used the AutoHotkey_L version

Here is my auto hot key script:

#space::
Send ^c<a href="^v" rel="nofollow">^v</a>
return

To use, I highlight the url I want:

www.example.com

And press Windows-key and spacebar. It gets transformed to:

<a href="www.example.com" rel="nofollow">www.example.com</a>