[R-SIG-Mac] Retrieving Script Path in R.app

[Andrew Simmons]

Hello,


I'd like to programmatically retrieve the path of the currently open script
in R.app.
Something like, if I had written:

this.path()

within a script that was open in R.app, and I ran that line with
Command+Enter,
I'd like it to return the path of the script.
It seems like this should be possible since Command+E runs the following:

source("/absolute/path/to/file")

so R.app knows the path of the open script, but I was unable to find
anything that would retrieve it on my own. First, I tried looking through
the environment 'as.environment("tools:RGUI")', but I didn't find anything
that looked like what I was looking for. Second, I tried comparing the
functions available in the base packages between Windows and macOS, and
while there are a few functions available for macOS that are not for
Windows, none of them looked like what I was looking for.
Any help will be greatly appreciated, thank you!


Regards,
    Andrew Simmons

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