[Haskell-cafe] Wishful thinking: a text editor that expands function applications into function definitions

Duane Johnson duane.johnson at gmail.com
Fri Apr 3 00:07:53 EDT 2009

I hadn't seen that feature in Excel before.  When I press F9 it seems  
to evaluate the expression, which isn't quite what I had in mind (Mac  
OS).  Is that the same as what you get?


On Apr 2, 2009, at 8:33 PM, Michael Snoyman wrote:

> 2009/4/3 Duane Johnson <duane.johnson at gmail.com>
> Perhaps it wouldn't be as all-wonderful as I think, but as a "new"  
> Haskell user, I am constantly switching back and forth between  
> various definitions of things trying to compare documentation and  
> files...
> The purpose of "expansion" as I was explaining it is not to  
> *permanently replace* what is in the text, but rather to  
> *temporarily replace* it.  I imagine it kind of like a "zoom in" for  
> code.  You could "zoom in" on one function, and seeing a new  
> function that you don't recognize, "zoom in" again, and so on.  Once  
> done, you would hit "ESC" to make it all return as it was.
> Sounds exactly like the F9 feature in Excel (that's where you got  
> the idea, right?). I can personally attest that it can be an  
> incredibly useful feature.
> Michael

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