From Kurt@Horn|k @end|ng |rom wu@@c@@t  Wed Jun 12 09:42:50 2019
From: Kurt@Horn|k @end|ng |rom wu@@c@@t (Kurt Hornik)
Date: Wed, 12 Jun 2019 09:42:50 +0200
Subject: [Rd] [R] Open a file which name contains a tilde
In-Reply-To: <3dda0b39-4708-c220-530c-d5e07eb4168a@gmail.com>
References: <20190605160714.GA24635@debian64>
 <20190606135957.0be4db10@trisector>
 <CABcYAdLgLrBwNW4A4EgYx0RwD9zjCo4Mpe7S05SeohoNmMQSGg@mail.gmail.com>
 <20190610165155.GA29855@debian64>
 <CABtg=Km4i9dsPoqC0sK=G9LvxbMd4FcHJ436usHkd+i7FPrR5Q@mail.gmail.com>
 <20190611100938.GA3588@debian64>
 <CAD4oTHEqKpgxrV406fzqO2CYz2y7ccAsFBaU3TFt5ShVop1uXQ@mail.gmail.com>
 <20190611201823.GA6068@debian64>
 <CAF8bMcYehy+Etkh5Xwzd6gG5bON1CFW9cKF9Mdo-oN4dprYq_A@mail.gmail.com>
 <3dda0b39-4708-c220-530c-d5e07eb4168a@gmail.com>
Message-ID: <23808.44282.850500.926937@hornik.net>

>>>>> Duncan Murdoch writes:

With c76695 in the trunk, we now only tilde expand file names starting
with a tilde also when using readline.

Best
-k

> On 11/06/2019 4:34 p.m., William Dunlap via R-devel wrote:
>> Note that R treats tildes in file names differently on Windows and Linux.
>> On Windows, it is only replaced if it it at the beginning of the line and
>> is followed by a forward or backward slash or end-of-line.  On Linux it is
>> replaced no matter where it is in the text and ~someUser will be replaced
>> by someUser's home directory (if 'someUser' is a user with a home
>> directory).

> That's not quite true:  On Linux the bug is in the code that uses 
> libreadline, which you don't have to use.  If you just specify
> "--no-readline" when you start R, it will be fine on Linux, as far as I 
> can see.

> I wouldn't choose that as the default way to run R (it's pretty 
> irritating not to have readline support), but it is a workaround for 
> this bug.

> Duncan Murdoch

>> 
>> Hence, if you have a Windows machine that can look at the file system on
>> your Linux machine you can use file.rename on Windows to change the names.
>> My inclination would be to use a bash script on Linux to change the names,
>> but if you are not comfortable with bash try the Windows approach.
>> 
>> Bill Dunlap
>> TIBCO Software
>> wdunlap tibco.com
>> 
>> 
>> On Tue, Jun 11, 2019 at 1:13 PM Frank Schwidom <schwidom at gmx.net> wrote:
>> 
>>> Hi Gabriel,
>>> 
>>> I actually want to make renames over thousands of files. But if I am not
>>> able to express the source filename of the rename operation I will not be
>>> able to get the work done. Besides the fact that there are issues I think
>>> that R is qualified for solving my problem by the method how it can handle
>>> long vectors of strings, booleans and also lists.
>>> 
>>> Kind regards,
>>> Frank
>>> 
>>> On 2019-06-11 09:49:17, Gabriel Becker wrote:
>>>> Hi Frank,
>>>> I'm hesitant to be "that guy", but in case no one else has brought
>>> this up
>>>> to you, having files with a tilde in their names (generally but
>>> especially
>>>> on a linux system, where ~ in file names has a very important special
>>>> meaning in some cases, as we know) strikes me as an exceptionally bad
>>>> practice anyway. In light of that, the solution with the smallest
>>> amount
>>>> of pain for you is almost surely to just... not do that. Your
>>> filenames
>>>> will be better for it anyway.
>>>> There is a reason no one has complained about this before, and while I
>>>> haven't run a study or anything, I strongly suspect its that
>>> "everyone"
>>>> else is already on the "no tildes in filenames" bandwagon, so this
>>>> behavior, even if technically a bug, has no ability to cause them
>>>> problems.
>>>> Best,
>>>> ~G
>>>> On Tue, Jun 11, 2019 at 8:25 AM Frank Schwidom <[1]schwidom at gmx.net>
>>>> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> yes, I have seen this package and it has the same tilde expanding
>>>> problem.
>>>> 
>>>> Please excuse me I will cc this answer to r-help and r-devel to
>>> keep the
>>>> discussion running.
>>>> 
>>>> Kind regards,
>>>> Frank Schwidom
>>>> 
>>>> On 2019-06-11 09:12:36, G?bor Cs?rdi wrote:
>>>> > Just in case, have you seen the fs package?
>>>> > [2]https://fs.r-lib.org/
>>>> >
>>>> > Gabor
>>>> >
>>>> > On Tue, Jun 11, 2019 at 7:51 AM Frank Schwidom <[3]
>>> schwidom at gmx.net>
>>>> wrote:
>>>> > >
>>>> > > Hi,
>>>> > >
>>>> > > to get rid of any possible filename modification I started a
>>> little
>>>> project to cover my usecase:
>>>> > >
>>>> > > [4]https://github.com/schwidom/simplefs
>>>> > >
>>>> > > This is my first R package, suggestions and a review are
>>> welcome.
>>>> > >
>>>> > > Thanks in advance
>>>> > > Frank Schwidom
>>>> > >
>>>> > > On 2019-06-07 09:04:06, Richard O'Keefe wrote:
>>>> > > >    How can expanding tildes anywhere but the beginning of a
>>> file
>>>> name NOT be
>>>> > > >    considered a bug?
>>>> > > >    On Thu, 6 Jun 2019 at 23:04, Ivan Krylov
>>>> <[1][5]krylov.r00t at gmail.com> wrote:
>>>> > > >
>>>> > > >      On Wed, 5 Jun 2019 18:07:15 +0200
>>>> > > >      Frank Schwidom <[2][6]schwidom at gmx.net> wrote:
>>>> > > >
>>>> > > >      > +> path.expand("a ~ b")
>>>> > > >      > [1] "a /home/user b"
>>>> > > >
>>>> > > >      > How can I switch off any file crippling activity?
>>>> > > >
>>>> > > >      It doesn't seem to be possible if readline is enabled and
>>>> works
>>>> > > >      correctly.
>>>> > > >
>>>> > > >      Calls to path.expand [1] end up [2] in R_ExpandFileName
>>> [3],
>>>> which
>>>> > > >      calls R_ExpandFileName_readline [4], which uses
>>> libreadline
>>>> function
>>>> > > >      tilde_expand [5]. tilde_expand seems to be designed to
>>> expand
>>>> '~'
>>>> > > >      anywhere in the string it is handed, i.e. operate on
>>> whole
>>>> command
>>>> > > >      lines, not file paths.
>>>> > > >
>>>> > > >      I am taking the liberty of Cc-ing R-devel in case this
>>> can be
>>>> > > >      considered a bug.
>>>> > > >
>>>> > > >      --
>>>> > > >      Best regards,
>>>> > > >      Ivan
>>>> > > >
>>>> > > >      [1]
>>>> > > >
>>>> [3][7]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/names.c#L807
>>>> > > >
>>>> > > >      [2]
>>>> > > >
>>>> [4][8]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/platform.c#L1915
>>>> > > >
>>>> > > >      [3]
>>>> > > >
>>>> [5][9]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-unix.c#L147
>>>> > > >
>>>> > > >      [4]
>>>> > > >
>>>> [6][10]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-std.c#L494
>>>> > > >
>>>> > > >      [5]
>>>> > > >
>>>> [7][11]
>>> https://git.savannah.gnu.org/cgit/readline.git/tree/tilde.c?h=devel#n187
>>>> > > >
>>>> > > >      ______________________________________________
>>>> > > >      [8][12]R-help at r-project.org mailing list -- To
>>> UNSUBSCRIBE
>>>> and more, see
>>>> > > >      [9][13]https://stat.ethz.ch/mailman/listinfo/r-help
>>>> > > >      PLEASE do read the posting guide
>>>> > > >      [10][14]http://www.R-project.org/posting-guide.html
>>>> > > >      and provide commented, minimal, self-contained,
>>> reproducible
>>>> code.
>>>> > > >
>>>> > > > References
>>>> > > >
>>>> > > >    Visible links
>>>> > > >    1. mailto:[15]krylov.r00t at gmail.com
>>>> > > >    2. mailto:[16]schwidom at gmx.net
>>>> > > >    3.
>>>> [17]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/names.c#L807
>>>> > > >    4.
>>>> [18]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/platform.c#L1915
>>>> > > >    5.
>>>> [19]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-unix.c#L147
>>>> > > >    6.
>>>> [20]
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-std.c#L494
>>>> > > >    7.
>>>> [21]
>>> https://git.savannah.gnu.org/cgit/readline.git/tree/tilde.c?h=devel#n187
>>>> > > >    8. mailto:[22]R-help at r-project.org
>>>> > > >    9. [23]https://stat.ethz.ch/mailman/listinfo/r-help
>>>> > > >   10. [24]http://www.r-project.org/posting-guide.html
>>>> > >
>>>> > > ______________________________________________
>>>> > > [25]R-devel at r-project.org mailing list
>>>> > > [26]https://stat.ethz.ch/mailman/listinfo/r-devel
>>>> >
>>>> 
>>>> ______________________________________________
>>>> [27]R-devel at r-project.org mailing list
>>>> [28]https://stat.ethz.ch/mailman/listinfo/r-devel
>>>> 
>>>> References
>>>> 
>>>> Visible links
>>>> 1. mailto:schwidom at gmx.net
>>>> 2. https://fs.r-lib.org/
>>>> 3. mailto:schwidom at gmx.net
>>>> 4. https://github.com/schwidom/simplefs
>>>> 5. mailto:krylov.r00t at gmail.com
>>>> 6. mailto:schwidom at gmx.net
>>>> 7.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/names.c#L807
>>>> 8.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/platform.c#L1915
>>>> 9.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-unix.c#L147
>>>> 10.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-std.c#L494
>>>> 11.
>>> https://git.savannah.gnu.org/cgit/readline.git/tree/tilde.c?h=devel#n187
>>>> 12. mailto:R-help at r-project.org
>>>> 13. https://stat.ethz.ch/mailman/listinfo/r-help
>>>> 14. http://www.r-project.org/posting-guide.html
>>>> 15. mailto:krylov.r00t at gmail.com
>>>> 16. mailto:schwidom at gmx.net
>>>> 17.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/names.c#L807
>>>> 18.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/main/platform.c#L1915
>>>> 19.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-unix.c#L147
>>>> 20.
>>> https://github.com/wch/r-source/blob/12d1d2d232d84aa355e333348b81180a0e2c6f2f/src/unix/sys-std.c#L494
>>>> 21.
>>> https://git.savannah.gnu.org/cgit/readline.git/tree/tilde.c?h=devel#n187
>>>> 22. mailto:R-help at r-project.org
>>>> 23. https://stat.ethz.ch/mailman/listinfo/r-help
>>>> 24. http://www.r-project.org/posting-guide.html
>>>> 25. mailto:R-devel at r-project.org
>>>> 26. https://stat.ethz.ch/mailman/listinfo/r-devel
>>>> 27. mailto:R-devel at r-project.org
>>>> 28. https://stat.ethz.ch/mailman/listinfo/r-devel
>>> 
>>> ______________________________________________
>>> R-devel at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>> 
>> 
>> [[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>> 

> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel



[Rd] [R] Open a file which name contains a tilde
Kurt Hornik