[R] Cream Text Editor

JiHO jo.lists at gmail.com
Sun May 24 01:33:53 CEST 2009

On 2009-May-23  , at 17:40 , Paul Heinrich Dietrich wrote:

> I'm interested in easing my way into learning VIM by first using the  
> Cream
> text editor, liking the idea that it will work on both my Linux and  
> Windows
> computers.  I've installed Cream on my Linux machine, but can't  
> figure out
> how to make Cream talk to R?  Does anybody know?  I'm using Ubuntu  
> if it
> makes a difference.  Thanks.

You should install the R Vim Plugin and its dependencies:
This creates commands and icons dedicated to the interaction between  
Vim and R.

Then switch cream Settings > Preferences > Expert Mode.

This will allow you to work in Cream and have all the simple keyboard  
shortcuts (Control-C, Control-V etc.) but still be able to switch  
between modes as in vim. By default you are in insert mode. You need  
to switch to normal mode (by pressing ESC) to be able to use the  
commands of the R-Vim plugin.

The workflow is therefore:
- open a R file
- edit stuff
- press ESC (to switch to non-edit mode)
- start R in a terminal (click the icon or press F2)
- send lines/selection (F9) or document (F5)
- press ESC (to switch back to insert mode)
- edit 2 lines
- F9
- F9
- edit again

The terminal opened this way does not work completely as a regular one  
and there are some caveats when reading help and using general command  
line editing shortcuts (Ctrl-R for backward search for example). I  
haven't found a way around them so I usually open a second terminal to  
read the help in, or set R to display the help as HTML files in a  
browser window.

I must say that those caveats can be quite serious and I often find  
myself just using copy-paste from gedit in a terminal:
- set your desktop to "focus follow mouse"
- select text in your editor
- move the mouse to the terminal
- click middle mouse button
- move the mouse back to the editor
More cumbersome but reliable.

Final note: since you are on ubuntu, you may want to change the  
terminal from the default X-term to gnome-terminal. You have to edit  
the file .vim/ftplugin/r.vim. There is a line commented with the gnome- 
terminal command instead of xterm. Uncomment this one and comment the  
xterm one.


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