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Re: Evaluate code fragment without making new cell for it?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg127353] Re: Evaluate code fragment without making new cell for it?
  • From: Murta <rodrigomurtax at gmail.com>
  • Date: Thu, 19 Jul 2012 03:53:00 -0400 (EDT)
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  • References: <jsrpgn$d22$1@smc.vnet.net>

Hi
I think you could create it in 2 steeps:
1- Change the file below to create your shortcut
/Applications/Mathematica.app/SystemFiles/FrontEnd/TextResources/Macintosh/KeyEventTranslations.tr
I use it for Use Command + [ or ] to do [[ or ]] for example. There is how
Item[KeyEvent["[", Modifiers -> {Command}],FrontEndExecute[{FrontEnd`NotebookWrite[FrontEnd`InputNotebook[],"[[", After]}]],
Item[KeyEvent["]", Modifiers -> {Command}],FrontEndExecute[{FrontEnd`NotebookWrite[FrontEnd`InputNotebook[],"]]", After]}]],


2- Using some functions like this:
viewNewWindow[expression_] := CreateDialog[expression, Background -> White]
To evaluate the expression in new windows.

Best regard
Murta


On Monday, July 2, 2012 6:26:47 AM UTC-3, Nasser M. Abbasi wrote:
> Sometimes I wish the following feature existed in
> Mathematica notebook interface, but I can&#39;t seem to
> find a way to do it.
> 
> Sometimes, (while trying things) I find that I want to
> evaluate small code fragment which sits in a cell that
> contains more code.
> 
> Currently what I do is either copy that code fragment to
> a new cell and evaluate that cell, and when done, delete
> the cell, or split the original cell at places where I want
> to isolate the code fragment, then rejoin the cells when
> done.
> 
> It will be nice, if there was a feature, where one can just
> select, using the mouse, the code fragment, and then right-click
> and say evaluate-selected.
> 
> The output will go into a new output cell as normal.
> 
> btw, the above is something one can do with that other
> system M____B
> 
> For example, assume we have this toy cell
> 
> ---CELL-----
> x = 16
> Sqrt[x]
> y = 3
> Sqrt[y*x]
> ---------
> 
> And I just wanted to evaluate only
> 
> x=16
> Sqrt[x]
> 
> There is no easy way to do it without splitting the
> cell or making new cell as I mentioned above.
> 
> This feature should not be hard to implement by
> the front end I would think.  The front end can
> make an &#39;internal hidden cell&#39; in its own buffer of the
> code selected and evaluate it and send the output back.
> 
> Do others think such a feature will be useful?
> 
> --Nasser



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