On 17 December 2021 at 21:13, Patrice Kiener wrote:
| Thank you for your suggestions. Let's give more details. The idea is to
| insert the code in a function and then in a (private) package. We have
| to rely on the default editors provided by the OS to R and cannot invent
| a new editor, as R CMD check could fail on exotic platforms. We cannot
| assume that Geany, even nano, is available everywhere.
But you can (and likely: should !!) test for their presence via
Sys.which(prog):
> Sys.which("vi")
vi
"/usr/bin/vi"
> Sys.which("notExisting")
notExisting
""
>
In short, you have no guarantee that what is EDITOR is actually sane!
| The instruction for the text editor
|
| system2(getOption("editor"), fileREP, wait = FALSE)
|
| works fine on Windows (it opens Notepad.exe, or Notepad++.exe in my
| Rprofile.site) but not on Unix. I assumed there was something similar on
| Unix (You have understood that I am not a Unix specialist). R includes a
As Ivan was hinted this gets more complicated with apps being launched
synchronousy or asynchronously.
What you are after is actually a hard problem, portably, across OSs.
Dirk
--
https://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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