[Rd] sub returns garbage (PR#8687)

[Peter Dalgaard]

todd at baileywick.plus.com writes:

> Full_Name: Todd Bailey
> Version: 2.1

Er, 2.2.1....

> OS: Mac OS-X 10.4.3
> Submission from: (NULL) (87.112.79.124)
> 
> 
> sub returns garbage in some strings when replacing something with nothing and
> fixed=TRUE.  For example:
> 
> > a=c('hello','hello'); sub('lo','',a,fixed=TRUE)
> [1] "hel"     "hel\0\0"
> > a=c('hello','hello'); sub('lo','',a,fixed=FALSE)
> [1] "hel" "hel"

Confirmed on Linux & Windows. We've seen this symptom a few times
before.... 

> 
> > version
>          _                        
> platform powerpc-apple-darwin7.9.0
> arch     powerpc                  
> os       darwin7.9.0              
> system   powerpc, darwin7.9.0     
> status                            
> major    2                        
> minor    2.1                      
> year     2005                     
> month    12                       
> day      20                       
> svn rev  36812                    
> language R
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
> 

-- 
   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