R help - Nov 2014 - list.files() not compatible with all Unicode characters; file.exists() is compatible.

Hello,I have some files with strange Unicode characters in their names that I am
trying to remove.But list.files() does not return their names faithfully so that
I can deal with them.
> list.files()[1] "? text.txt" ? ? ? ? ? ? ? ? ?<--- here you
should see a question mark, a space, then text.txt> file.exists("?
text.txt") ? ?<----by copying and pasting the output from above[1]
FALSE> file.exists('? text.txt') ? ?<--- here you should see a
black triangle, what looks like a space, and text.txt[1] TRUE
Documentation for file.exists() and file.access() do not seem to discuss this.
The file name has these Unicode characters:BLACK RIGHT-POINTING TRIANGLE WITH
DOUBLE VERTICAL BAR U+23EF BLACK RIGHT-POINTING TRIANGLE WITH DOUBLE VERTICAL
BAR ?BLACK RIGHT-POINTING TRIANGLE U+25B6 BLACK RIGHT-POINTING TRIANGLE ?
Thank you!CheersNissim KaufmannNSOL.altervista.org
	[[alternative HTML version deleted]]

Sorry, your email was undecipherable because you sent HTML formatted email.
Please send plain text

-- 
Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062





On 11/24/14, 11:07 AM, "Nissim Kaufmann" <nissimkaufmann at
yahoo.com> wrote:
>Hello,I have some files with strange Unicode characters in their names
>that I am trying to remove.But list.files() does not return their names
>faithfully so that I can deal with them.
>> list.files()[1] "? text.txt"                  <--- here
you should see
>>a question mark, a space, then text.txt> file.exists("?
text.txt")
>><----by copying and pasting the output from above[1] FALSE>
>>file.exists('? text.txt')    <--- here you should see a black
triangle,
>>what looks like a space, and text.txt[1] TRUE
>Documentation for file.exists() and file.access() do not seem to discuss
>this.
>The file name has these Unicode characters:BLACK RIGHT-POINTING TRIANGLE
>WITH DOUBLE VERTICAL BAR U+23EF BLACK RIGHT-POINTING TRIANGLE WITH DOUBLE
>VERTICAL BAR ?BLACK RIGHT-POINTING TRIANGLE U+25B6 BLACK RIGHT-POINTING
>TRIANGLE ?
>Thank you!CheersNissim KaufmannNSOL.altervista.org
>	[[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

On 25/11/2014 01:25, MacQueen, Don wrote:
> Sorry, your email was undecipherable because you sent HTML formatted email.
> Please send plain text
>
Also, the 'at a minimum' information requested by the posting guide is 
essential here (which OS and locale, in particular).  In general file 
names not in the locale's encoding are unsupported.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford
1 South Parks Road, Oxford OX1 3TG, UK