[ESS] Why can't I load attached R file?

[Rainer M Krug]

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Hi Martin

On 16/07/2010 09:17, Martin Maechler wrote:
>>>>>> "HeinzT" == Heinz Tuechler <tuechler at gmx.at>
>>>>>>     on Fri, 16 Jul 2010 07:45:44 +0100 writes:
> 
>     HeinzT> The same problem for me with Emacs 21.3.1 and ESS 5.3.3
> 
> thank you for the confirmation.
> 
> "Of course" -- in hindsight --
> 
> As you've found,
> o  it only happens if you forget the final "\n" in your print
>    statements.
>    And yes, it has been known that you can confuse ESS
>    (and other simple [G]UI's as well, IIRC) to some extent
>    if you produce output not ending in a new line 
> 

OK - good to know - then I an work around this problem.

> o  the *hang*ing only happens with the "!" ending.

Might be a misunderstanding, but it also happens with

cat("!Done")

where the ! is at the beginning of the string.

> 
>    I don't have time now, but "of course" this must be related
>    to our magic handling of  "!" (in the old Unix and S tradition)
>    for command recall.
> 
> I agree that this is a bug we (ESS core) must address...
> (but not before 'useR!' next week).

Don't worry - I just stumbled over it when drawing up a small example
for demonstrating a few things.

Thanks for all your help,

Rainer


> 
> Martin
> 
>     HeinzT> At 15.07.2010 12:01 +0200, Rainer M Krug wrote:
> On 15/07/2010 11:53, Stephen Eglen wrote:
>>>
>>> Debugger entered--Lisp error: (quit)
>>>   accept-process-output(#<process R> 0 500)
>>>   ess-prompt-wait(#<process R> nil nil)
>>>   ess-command("source(\"/home/rkrug/tmp/R.att.R\")\n" #<buffer
>>> *ESS-errors*>)
>>>   ess-load-file("/home/rkrug/tmp/R.att.R")
>>>   call-interactively(ess-load-file nil nil)
> 
>> Thanks, sorry - my mistake, I thought you meant 'load' as in visit the
>> file, but you (rightly) meant ess-load-file.  Yes, I see the error that
>> you do.  Is it anything to do with missing \n from the cat statement?
>> Probably the code that looks for the prompt is getting confused.
> 
>> i.e this works
> 
>>   cat("Done!!!")
>>   cat("\n")
> 
> Yup - that is the problem.
> 
> But the problem is the "!". If I have
> 
> cat("Done")
> 
> and ess-load-file the fie, it works.
> 
> Can somebody confirm that behaviour, or is it strangely only on my computer?
> 
> Versions:
> 
> Ess 5.11
> GNU Emacs 23.2.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
> 
> Rainer
> 
> 
> 
>> Stephen
> 

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>     HeinzT> ______________________________________________
>     HeinzT> ESS-help at stat.math.ethz.ch mailing list
>     HeinzT> https://stat.ethz.ch/mailman/listinfo/ess-help

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