Peter Dalgaard wrote:
Gad Abraham wrote:
Prof Brian Ripley wrote:
A patch to do this was posted on 2007-09-29 by Glenn Davis. Some
people not addicted to Matlab find the behaviour very inconvenient
and prefer the getline/readline behaviour (triggered by ^R/^S) of
Rterm and R on Unixen.
Now that you've mentioned readline, it doesn't behave exactly the same
in Bash and R: if you press ctrl-r and then ctrl-c in Bash, it breaks
the search and you go back to the prompt as normal. In R on Linux (all
versions I've tried, 2.2 to 2.7.1), doing that returns you to the
prompt but you can't type anything, and the input buffer retains the
text from the search, so pressing enter makes the historical command
run again.
Try this:
> ls()
character(0)
[ctrl-r]
(reverse-i-search)`l': ls()
[ctrl-c, then enter]
> ls()
character(0)
Not quite true that you can't type anything. What happens (for me) is
that you are still in reverse-i-search, so you can get this effect from
"^R l ^C d".
>
(reverse-i-search)`l': ls()
(reverse-i-search)`l': ls()
>
(reverse-i-search)`l': ls()
(reverse-i-search)`ld': levels(ftpain3) <-
list(none="none",intermediate=c("mild","medium"),severe="severe")
It snaps out of it if you press ^C twice.
If try typing after a ctrl-C in reverse search mode , nothing displays,
and the console beep sounds. It doesn't matter how many times I press
ctrl-C, the same happens. The only way out of it is to press either
enter (which shows the previously highlighted command ls and then runs
it) or to use the up key, and then ctrl-C.
I'm using Ubuntu Hardy.
> sessionInfo()
R version 2.7.1 (2008-06-23)
x86_64-pc-linux-gnu
locale:
LC_CTYPE=en_AU.UTF-8;LC_NUMERIC=C;LC_TIME=en_AU.UTF-8;LC_COLLATE=en_AU.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_AU.UTF-8;LC_PAPER=en_AU.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_AU.UTF-8;LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
--
Gad Abraham
Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: [EMAIL PROTECTED]
web: http://www.csse.unimelb.edu.au/~gabraham
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