[R-SIG-Mac] Version differences in filename completion behavior

[Simon Urbanek]

Don,

first, you failed to tell us how you use R. There are several ways  
(R.app, R from the shell, ESS, ...) and each uses a different way to  
auto-complete. My wild guess is that you mean the second method  
(based on your false statement about CRAN binary and libedit) and in  
that case I can just repeat what has been said before ( http:// 
tolstoy.newcastle.edu.au/R/e2/devel/07/04/3027.html ) - please read  
the NEWS.

Cheers,
Simon


On Jun 1, 2007, at 1:18 PM, Don MacQueen wrote:

> Hello,
>
> I am seeing a difference between R versions in how filename
> completion performs. Specifically, something that worked in 2.3.1,
> which I built from sources, does not work in the CRAN binary 2.5.0.
> (Apparently, I skipped versions 2.4.x and went directly from 2.3.1 to
> 2.5.0, so I can't speak to the behavior in 2.4.x.)
>
> This may be due to the CRAN binary using libedit from Apple instead
> of GNU readline?
> (from the R for OS X faq: "Nevertheless, GNU readline has some
> additional functionality so it may be worth installing anyway.")
>
> Details:
>
> Suppose I have files of R code in my working directory named:
>      foo-bar.r
>      ugh.bar.r
>
> I want to source these files using, e.g.,
>      source('foo-bar.r')
>      source('ugh.bar.r')
>
> In my R 2.3.1 (built from source), command line completion (by
> hitting the tab key) worked for both files.
> That is, after typing
>     source('foo-b
> or
>     source('ugh.b
> and then hitting TAB, the filename completed.
>
> In R 2.5.0 (binary), filename completion works for
>     source('ugh.b
> but not for
>     source('foo-b
> I hit the tab key, and it beeps but does nothing.
>
> Since I have been in the habit of using (and desire to use) hyphens
> in file names, it would be nice to have both.
>
> I tried to find out which version of readline my build of 2.3.1 one
> used, and couldn't find version info in any of the logs. But I do
> have libreadline.5.0.dylib from fink in /sw/lib, whereas Apple seems
> to supply libedit.dylib in /usr/lib, so maybe my build and the CRAN
> binary are using different libraries. More than likely, I would
> guess... And maybe Apple's doesn't support completion with hyphens.
>
> Thanks
> -Don
>
>
> The respective version and session info is:
>
> ###### 2.5.0
>>  version
>                 _
> platform       powerpc-apple-darwin8.9.1
> arch           powerpc
> os             darwin8.9.1
> system         powerpc, darwin8.9.1
> status
> major          2
> minor          5.0
> year           2007
> month          04
> day            23
> svn rev        41293
> language       R
> version.string R version 2.5.0 (2007-04-23)
>
>>  sessionInfo()
> R version 2.5.0 (2007-04-23)
> powerpc-apple-darwin8.9.1
>
> locale:
> C
>
> attached base packages:
> [1] "stats"     "graphics"  "grDevices" "utils"     "datasets"
> "methods"   "base"
>
> ###### 2.3.1
>>  version
>                 _
> platform       powerpc-apple-darwin8.7.0
> arch           powerpc
> os             darwin8.7.0
> system         powerpc, darwin8.7.0
> status         Patched
> major          2
> minor          3.1
> year           2006
> month          08
> day            19
> svn rev        38935
> language       R
> version.string Version 2.3.1 Patched (2006-08-19 r38935)
>
>>  sessionInfo()
> Version 2.3.1 Patched (2006-08-19 r38935)
> powerpc-apple-darwin8.7.0
>
> attached base packages:
> [1] "methods"   "stats"     "graphics"  "grDevices" "utils"
> "datasets"  "base"
>
>
> -- 
> --------------------------------------
> Don MacQueen
> Environmental Protection Department
> Lawrence Livermore National Laboratory
> Livermore, CA, USA
>
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