Duncan:
"...
If you want to solve the problem "I have a pathname in the clipboard,
and want to put it in a string", it's not hard to write
a function that essentially does readLines("clipboard")...."
Does not the Windows version R function readClipboard() do this already?
-- Bert
Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374
"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
H. Gilbert Welch
On Tue, May 20, 2014 at 10:03 AM, Duncan Murdoch
<murdoch.dun...@gmail.com> wrote:
> On 20/05/2014 12:04 PM, Knut Krueger wrote:
>>
>> Am 20.05.2014 17:32, schrieb Bert Gunter:
>>
>> >> paste("a","b",sep="\\") ## "\\" is the escaped single backslash
>> > [1] "a\\b"
>> >> cat(paste("a","b",sep="\\"))
>> > a\b
>> >
>> > Does this help clarify? Or have i misunderstood you?
>>
>> @David and @Bert
>>
>> unfortunately yes. My question is more a system level question as about
>> any converting functions.
>>
>> The question is how to paste a windows path directly into an R script
>> (without readline() or readClipboard() and how could I convert this
>> string that it is usable in R. Means any function which is not using
>> escape characters
>>
>> it seems to be possible for readline() an readClipboard().
>>
>> I do not want to use y=readline() I do want to use
>> y=foo("c:\foo1\foo2\") but this seems to be impossible because R is
>> interpreting one backslash as escape sequence. So how does readline()
>> and readClipboard() are working? Is there any other callback from utils
>> which is able to deal with this?
>
>
> The difference between the two cases is that you are trying to write
> something in the R language when you write
>
> y=foo("c:\foo1\foo2\")
>
> but that is not a legal R statement, since you never close the opening
> quote. When using readLines() etc., you're just reading data, you're not
> trying to parse it as R code.
>
> I have no idea what you mean by a "callback from utils".
>
> If you want to solve the problem "I have a pathname in the clipboard, and
> want to put it in a string", it's not hard to write
> a function that essentially does readLines("clipboard"). It's a little
> harder to make that platform-neutral, but it sounds as if you're only
> working on Windows.
>
> If you want to solve the problem, "I want to write some R source code that
> contains a pathname, but I don't want to escape the backslashes", then I
> think you're out of luck. There are ways to read data inline in your
> source, e.g. you can paste
>
> f <- scan(what="character")
> c:\foo1\foo2\
>
>
> into your console to read x, but that doesn't work with source(), so I'd
> avoid it.
>
> Duncan Murdoch
>
>>
>> I am afraid there is no way.
>>
>> The reason is to prevent errors for beginning windows R user. If the
>> path is long they either forget to convert one backslash or all and then
>> they are frustrated that it is not working. And telling them to use
>> search and replace ... Whatever they would replace it might be worse
>> than before ;-)
>>
>> regards Knut
>>
>> ______________________________________________
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>
>
> ______________________________________________
> R-help@r-project.org mailing list
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> and provide commented, minimal, self-contained, reproducible code.
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