[Rd] autocompletion problem
p.dalgaard at biostat.ku.dk
Thu Apr 10 00:32:17 CEST 2008
Herve Pages wrote:
> Let's create the xxx object just to avoid confusion even if it's not necessary
> for reproducing the problem below:
> xxx <- 8:3
> If I start typing this:
> and now try to autocomplete with <TAB>, then I get the following error (and a warning):
> > max(xxx[Error in grep(sprintf("^%s", makeRegexpSafe(text)), allArgs, value = TRUE) :
> invalid regular expression '^xxx['
> In addition: Warning message:
> In grep(sprintf("^%s", makeRegexpSafe(text)), allArgs, value = TRUE) :
> regcomp error: 'Invalid regular expression'
Hmm, looks like makeRegexpSafe(text)) isn't. Presumably, it should
escape [ along with . and ?
> Now it seems that this problem in R has managed to screw up something out of R (and
> this is probably OS dependent, I'm running 64-bit openSUSE 10.3) because when I quit
> R and try to do something at the shell level, what I type is not echoed anymore in
> the terminal window.
Yes it happens occasionally (not just with R) that you come back to the
shell level with tty settings out of whack. The pragmatic fix is to
blind-type the command
followed by <Enter> (or ctrl-J if you are paranoid).
> For example if I type 'whoami' followed by <Enter>, here is what
> I get on the screen (only the output of the command is displayed but not the command
> hpages at gopher3:~> hpages
> I've tried this with other R versions (2.6.1, 2.6.2) on other Linux flavors (64-bit
> openSUSE 10.1, 32-bit openSUSE 10.3, 32-bit Ubuntu 6.06) and got almost the same thing,
> the only difference being that with older versions of R (e.g. with 2.7.0 from 2007-12-09
> r43632), I get the error message but no additional warning.
> > sessionInfo()
> R version 2.7.0 beta (2008-04-07 r45159)
> attached base packages:
>  stats graphics grDevices utils datasets methods base
> R-devel at r-project.org mailing list
O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B
c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
More information about the R-devel