[Rd] [ESS] browser() exits when not desired, in three different scenarios (PR#11634)

[kw.statr at gmail.com]

Tim, I have reported some similar issues a while back and there was
some discussion on this topic:
http://tolstoy.newcastle.edu.au/R/devel/06/03/4609.html
Good luck,
Kevin


On Tue, Jun 10, 2008 at 6:47 PM, Tim Hesterberg <timhesterberg at gmail.com> wrote:
> Here are three different scenarios in which the browser() exits
> when I don't want it to.  These are all related to the browser
> accepting either c or (return) to exit.  I would like an option
> to turn off the (return) behavior in order to avoid these problems.
>
>
>
> # Case 1 - when calling help
> # Note, I am using ESS in emacs; this is probably an interaction
> # with ESS handling of ? help.
>> f <- function(x){
> +   browser()
> +   length(x)
> + }
>> f(1:4)
> Called from: f(1:4)
> Browse[1]> ?rep
> [1] 4
>>
> # The help was given, but the browser exits.
>
>
> # Case 2 - when pasting in a command that stretches over
> # two lines.
> # With f defined as above, call f, select the following two lines in
> # an emacs buffer (using c-w clipboard-kill-ring-save) and yank them
> into the *R* buffer:
> mean(x,
>     trim = .2)
> # The result:
>> f(1:4)
> Called from: f(1:4)
> Browse[1]> mean(x,
>     trim = .2)
>
> mean(x,
> +      trim = .2)
> [1] 2.5
> Browse[1]>
> [1] 4
>>
> # The multi-line command was echoed (twice--this is probably an ESS
> problem or misconfiguration), ran, and the browser exits.
>
>
> # Case 3 - when pasting in a line at a time, including blank lines.
> I like to include blank lines in my code for readability.
> When I paste in multiple lines, the blank lines cause the browser
> to exit.
>
> I reported case 3 before; it is the single thing that bothers
> me most about R.  Someone suggested using
> ess-eval-line-and-step in ESS; this is nice for one line, but does not
> support C-u for sending multiple lines, and doesn't apply when
> I'm not using ESS.
>
> Tim Hesterberg
>
> --please do not edit the information below--
>
> Version:
>  platform = i486-pc-linux-gnu
>  arch = i486
>  os = linux-gnu
>  system = i486, linux-gnu
>  status =
>  major = 2
>  minor = 7.0
>  year = 2008
>  month = 04
>  day = 22
>  svn rev = 45424
>  language = R
>  version.string = R version 2.7.0 (2008-04-22)
>
> Locale:
> LC_CTYPE=en_US;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=en_US;LC_PAPER=en_US;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US;LC_IDENTIFICATION=C
>
> Search Path:
>  .GlobalEnv, package:stats, package:graphics, package:grDevices,
> package:utils, package:datasets, package:showStructure, package:Rcode,
> package:splus2R, package:methods, Autoloads, package:base
>
>        [[alternative HTML version deleted]]
>
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>