puzzled by cat() behaviour when argument '...' is a vector(and argument 'sep' contains "\n")

-----Original Message-----
From: r-devel-bounces at r-project.org 
[mailto:r-devel-bounces at r-project.org] On Behalf Of William Dunlap
Sent: Wednesday, November 05, 2008 4:51 PM
To: Duncan Murdoch; Peter Ruckdeschel
Cc: r-devel at r-project.org
Subject: Re: [Rd] puzzled by cat() behaviour when argument 
'...' is a vector(and argument 'sep' contains "\n")

Neither use any entry in sep after the end of the cat() 
output, although, because of the previous rule, it may seem 
that they do in the common case of sep="".

I had forgotten that sep= could be vectorized and use paste() 
instead of
cat() when I needed such functionality.  IMO, paste() has 
fewer surprises.

Bill Dunlap
TIBCO Spotfire Inc
wdunlap tibco.com