Hello,<br><br>By randomly typing :&lt;Tab&gt; under GHCI, I discovered it could be used as a debugger (:breakpoint, :step, etc.)<br>Three questions in that regard:<br>1) Is there some documentation about it?<br>2) I haven&#39;t investigated much, is that fairly thorough and convenient? Does some people over here use those functions on a regular basis?<br>

3) Is it possible to save the state (notably to save the position of the breakpoints)?<br><br>Thanks!<br>