[ESS] Release of ESS 5.3.5

[Phillip Lord]

>>>>> "FAT" == Frede Aakmann Tøgersen <FredeA.Togersen at agrsci.dk> writes:

  >> Well, finding all the versions of R is going to be heuristic, so there is
  >> nothing to stop you from doing both. I would suggest the following:
  >> 
  >> 1) Check a variable set by the user -- they can always
  >> override things.
  >> 2) Check c:/Program Files as this is the canonical and
  >> default location for storing programs on windows.

  FAT> Yes, for the english version of Windows XP. For instance in the danish
  FAT> version it is

  FAT> c:/Programmer

  FAT> How many language-specific versions of Windoze are there?
 
Ah. I didn't know that windows internationalised that. 

For me (getenv "ProgramFiles") returns the right location though. So

(directory-files 
 (concat (getenv "ProgramFiles")
         "\\R"))

Should return all the R directories in the standard place. For me that is...

("." ".." "R-2.5.1")

Failing that 

(executable-find "R.exe")

which is...

"c:/Program Files/R/R-2.5.1/bin/R.exe"

will work iff R is in the path. After that, 

HKEY_LOCAL_MACHINE\Software\R-core\R\Current Version

gives the current version

HKEY_LOCAL_MACHINE\Software\R-core\R\[version]\InstallPath

gives it's location. w32-regdat gives access to these values, although this
also requires an external executable. 


If I get the time, I'll try and write some lisp to get this to work. 

Phil