R devel - Oct 2002 - parse (PR#2104)

Full_Name: Michael McStephen
Version: 1.5.1
OS: w2000
Submission from: (NULL) (202.138.192.38)

> R.version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    1              
minor    5.1            
year     2002           
month    06             
day      17             
language R              
> 
> # The following line produces an error:
> tmp.name<-"tmp"
> parse(text=paste(tmp.name, ".lg, ",  sep="") )
Error in parse(file, n, text, prompt) : parse error
> 
>  
> # This line doesn't:
> parse(text=paste(tmp.name, ".lg ",  sep="") )
expression(tmp.lg)
> 
>  
> # The only difference is the ',' after lg in the second line.
>  
> 

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On Fri, 4 Oct 2002 08:31:11 +0200 (MET DST), you wrote:
>> # The following line produces an error:
>> tmp.name<-"tmp"
>> parse(text=paste(tmp.name, ".lg, ",  sep="") )
>Error in parse(file, n, text, prompt) : parse error
I'm not sure what you'd expect here.  If you just enter the result of
the paste at the command line, you should see 
> tmp.lg,
Error: syntax error

Commas aren't allowed to end expressions.  (Array indexing and
function calls have argument lists ending with a comma, but argument
lists aren't expressions.)

Duncan Murdoch

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