R help - Jan 2004 - scan() Bug?

I'm reading a file into a list by:
PDF = scan("file",what="character",sep="\10")

"\10" is the newline character in this file, also tried "\n"
originally

On lines that are ended by "\13\10", both are dropped from the list
entry
I want scan to keep the "\13" in the list entry.

Is this a bug or just a strange feature?



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On Thu, 22 Jan 2004, Greg Riddick wrote:
> I'm reading a file into a list by:
> PDF = scan("file",what="character",sep="\10")
> 
> "\10" is the newline character in this file, also tried
"\n" originally
> 
> On lines that are ended by "\13\10", both are dropped from the
list entry
> I want scan to keep the "\13" in the list entry.
> 
> Is this a bug or just a strange feature?
Not a strange feature, but the documented behaviour (and useful, too).  
You have opened the file in text mode.  If you want to keep CRs, open and
read in binary mode.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Thanks,

Right, I can see why sep="\n" might grab the entire "\13\10"
but it seems
like sep="\10" should not strip the "\13" also.

I need to read in this file (PDF file) and create a list of lines defined by
the "\10" delimiter.
Any suggestions how I could use ReadBin to do that?



>Not a strange feature, but the documented behaviour (and useful, too).
>You have opened the file in text mode.  If you want to keep CRs, open and
>read in binary mode.
>-- 
>Brian D. Ripley,                  ripley at stats.ox.ac.uk
>Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
>University of Oxford,             Tel:  +44 1865 272861 (self)
>1 South Parks Road,                     +44 1865 272866 (PA)
>Oxford OX1 3TG, UK                Fax:  +44 1865 272595



>
> Try opening the file as a connection using the 'read binary' mode. 
If you
> are running on a Windows system, the operating system is taking \10\13 and
> mapping that to just '\n' since that is the normal sequence that
Windows
> uses on text files.
> __________________________________________________________
> James Holtman        "What is the problem you are trying to
solve?"
> Executive Consultant  --  Office of Technology, Convergys
> james.holtman at convergys.com
> +1 (513) 723-2929
>
>
>
>                       "Greg Riddick"
>                       <gr3k at virginia.edu>          To:
<r-help at stat.math.ethz.ch>
>                  >
>
>
> I'm reading a file into a list by:
> PDF = scan("file",what="character",sep="\10")
>
> "\10" is the newline character in this file, also tried
"\n" originally
>
> On lines that are ended by "\13\10", both are dropped from the
list entry
> I want scan to keep the "\13" in the list entry.
>
> Is this a bug or just a strange feature?
>