ST2 function tooltip for R

Hi,

building on my last issue, the actual goal is to have function tooltip as shown here for Notepad++ (second screenshot):
http://yihui.name/en/2010/08/auto-completion-in-notepad-for-r-script/

That would really be useful but the current ST2 architecture only offers limited ways to do that. Take a look at this thread for a discussion about that:
http://www.sublimetext.com/forum/viewtopic.php?f=2&t=2670
and you can also cote for the issue here:
http://sublimetext.userecho.com/topic/54838-/

As long as ST2 does not support tooltips, a workaround would be to put the function help in the status bar. SublimeCodeintel does that for some languages. I think that the content of the tooltips can be automatically generated from R and saved in a json file (based on the script of the completion file I mentioned in the other issue). For example, for rnorm the tooltip should look like
rnorm(n, mean = 0, sd = 1)
to show the arguments and the default values.

If you are interested in working on this, I could cover the R side (i.e. automatically generate the json file with the tool tips). Maybe there is also a better way to achieve this...

Start by reviewing the Sublime Text tooltip discussion linked in the issue and the existing SublimeCodeIntel status-bar behavior. Determine whether ST2 can support tooltips; if not, define the status-bar fallback and the JSON generated from R, with function signatures such as rnorm(n, mean = 0, sd = 1) as the completion criterion.

Written by the indexing model from the issue text.