[Rd] Bug in sub? (PR#487)

[Torsten Hothorn]

> I suspect that there is bug in sub when using "?":
> 
> > string_"This is a bug!"
> >  sub("!", ", or isn't it?", string)
> [1] "This is a bug, or isn't it?"
> > string_"This is a bug?"
> >  sub("?", ", or isn't it?", string)
> [1] "This is a bug?"


R> string_"This is a bug?"
R> sub("[?]", ", or isn't it?", string)
[1] "This is a bug, or isn't it?"

works, has "?" a special meaning in regexp?

Torsten


> 
> 
> Regards,
> 
>   *** D.Trenkler ***
> 
> ====================================================================
> Dietrich Trenkler                   (trenkler@oec.uni-osnabrueck.de)
> Statistik / Empirische Wirtschaftsforschung
> Universitaet Osnabrueck
> Rolandstrasse 8                           Phone: +49(0) 541-969-2753
> D-49069 Osnabrueck                        Fax  : +49(0) 541-969-2745
> GERMANY
> ====================================================================
> 
> 
> --please do not edit the information below--
> 
> Version:
>  platform = Windows
>  arch = x86
>  os = Win32
>  system = x86, Win32
>  status = 
>  major = 1
>  minor = 0.0
>  year = 2000
>  month = February
>  day = 29
>  language = R
> 
> Windows NT 4.0 (build 1381) Service Pack 3
> 
> Search Path:
>  .GlobalEnv, Autoloads, package:base
> 
> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
> r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
> Send "info", "help", or "[un]subscribe"
> (in the "body", not the subject !)  To: r-devel-request@stat.math.ethz.ch
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
> 

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-devel-request@stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._