[Rd] Syntax Error in Rcmd check on Windows

Simon Urbanek simon.urbanek at r-project.org
Thu Nov 2 22:59:19 CET 2006

On Nov 2, 2006, at 4:39 PM, Duncan Murdoch wrote:

> On 10/31/2006 2:07 PM, Duncan Murdoch wrote:
>> On 10/31/2006 1:50 PM, Michael Hoehle wrote:
>>>> Thanks for pointing me to the source.  I can reproduce the  
>>>> problem, and
>>>> I'm fairly sure it's an R bug, not a problem in your source.  I  
>>>> need to
>>>> trace through at a low level to confirm this and to work out the  
>>>> fix.
>>> It reassuring to know that the problem appears not to be with my  
>>> code.
>>> Thanks for your help so far and hopefully you are able to find the
>>> bug! Let me know when you know more.
>>> Michael
>>> P.S. When I do a dos2unix on RLadyBug-Ex.R "Rterm --no-save <
>>> RLadyBug-Ex.R " works fine.
>> Yes, the problem has to do with the CR LF line ends in the file.   
>> For some reason R switches from handling those properly to not  
>> doing so. The problem I'm having right now is that I can't do  
>> input redirection in gdb in Windows, so it's really hard to see  
>> when the switch happens, or why.
> I'm now fairly sure this isn't an R bug after all.  It goes away if  
> I edit out the requirement in RLadyBug for rJava, which makes me  
> think that rJava is somehow messing up R's input routines.  (Rcmd  
> check fails later when it can't find  ".jnew", as you'd expect.   
> But there's no spurious syntax error.)
> Because of the difficulties with the debugger I'm going to quit  
> now; if you find any evidence that suggests it really is R's bug  
> after all, please let me know.
> Simon, let me know if there are any tests I can do to help track  
> this down.

AFAIR this is the  (sort of known) issue of Java changing the  
newlines behavior of the output under R CMD check. However, so far no  
one could tell me what the issue really is.
Can't just R CMD check ignore the CR/LF issues on Windows? I was  
assuming that it is not making distinction between \r\n and \n  
anyway ...


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