directory/filename completion

I've noticed something recently in R-beta that has changed since R 2.4.1
and I'm not sure if it's a readline problem or an R problem.  I am on a
Linux FC5 system and in R 2.4.1 I could do

load("my-directory/

and then hit TAB and it would list all of the files in 'my-directory',
after which I could start typing the beginning of the file, hit TAB
again, and it would complete the file name along with adding the closing
double quote.

In R-beta, when I try the same thing, nothing happens (i.e. no directory
listing and no file name completion).  Specifically, if I type

load("my

and then it TAB, it will complete the 'my-directory' but it will not
look further into the files inside of 'my-directory'.

Also, I've noticed that if I rename 'my-directory' to 'mydirectory' (so
no dash), everything works fine (just like in R 2.4.1).

Has anyone else noticed this?

On 4/13/07, Roger Peng <rpeng at jhsph.edu> wrote:

I've noticed something recently in R-beta that has changed since R 2.4.1
and I'm not sure if it's a readline problem or an R problem.  I am on a
Linux FC5 system and in R 2.4.1 I could do

load("my-directory/

and then hit TAB and it would list all of the files in 'my-directory',
after which I could start typing the beginning of the file, hit TAB
again, and it would complete the file name along with adding the closing
double quote.

In R-beta, when I try the same thing, nothing happens (i.e. no directory
listing and no file name completion).  Specifically, if I type

load("my

and then it TAB, it will complete the 'my-directory' but it will not
look further into the files inside of 'my-directory'.

Also, I've noticed that if I rename 'my-directory' to 'mydirectory' (so
no dash), everything works fine (just like in R 2.4.1).

Has anyone else noticed this?

I've noticed that if I have the rcompgen library loaded - perhaps
you've installed that recently?

On Fri, 13 Apr 2007, hadley wickham wrote:

On 4/13/07, Roger Peng <rpeng at jhsph.edu> wrote:

I've noticed something recently in R-beta that has changed since R 2.4.1
and I'm not sure if it's a readline problem or an R problem.  I am on a
Linux FC5 system and in R 2.4.1 I could do

load("my-directory/

and then hit TAB and it would list all of the files in 'my-directory',
after which I could start typing the beginning of the file, hit TAB
again, and it would complete the file name along with adding the closing
double quote.

In R-beta, when I try the same thing, nothing happens (i.e. no directory
listing and no file name completion).  Specifically, if I type

load("my

and then it TAB, it will complete the 'my-directory' but it will not
look further into the files inside of 'my-directory'.

Also, I've noticed that if I rename 'my-directory' to 'mydirectory' (so
no dash), everything works fine (just like in R 2.4.1).

Has anyone else noticed this?

I've noticed that if I have the rcompgen library loaded - perhaps
you've installed that recently?

Loading rcompgen is the default uner 2.5.0 beta, but you can turn it 
off. This is in the USER-VISIBLE CHANGES in NEWS: just how prominent 
does it need to be?

It is a feature of the rcompletion interface to rcompgen, now part of 
base R.  From the source code comment

       These break line into tokens.  Unfortunately, this also breaks
       file names, so a path with a - in it will not be completed.

We decided to make this the default in 2.5.0 to get user feedback: if it 
was not switched on few people would use it.