Re: [Rd] [R] Open a file which name contains a tilde
On Wed, Jun 12, 2019, 5:16 AM Paul McQuesten wrote:
> @ Gabriel:
>
> "Avoid tilde in file names":
> Not quite.
> A tilde *suffix* is commonly used by *nix editors for backup files
>
> https://unix.stackexchange.com/questions/76189/what-does-the-tilde-mean-at-the-end-of-a-filename
I'm aware of that, but that isn't the case that is being discussed, as the
example given clearly had a tilde (and spaces) in the middle of the file.
Backup files witilde suffix does not trigger the bug being discussed. It's
*only* files paths where the tilde is surrounded on both by spaces (or on
the right by the end fo the string) that trigger it.
> path.expand("a~b")
[1] "a~b"
> path.expand("a ~ b")
[1] "a /Users/gabrielbecker b"
> path.expand("myfile.txt~")
[1] "myfile.txt~"
> path.expand("myfile.txt ~")
[1] "myfile.txt /Users/gabrielbecker"
All that said I'm really not interested in participating in a flame war
over this. I gave my 2 cents as respectfully as I could, so as of now
please consider my participation and interest in this thread closed.
Best,
~G
>
>
>
> On Wed, Jun 12, 2019 at 2:43 AM Kurt Hornik wrote:
>
> > > 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
> > 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]schwi...@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, Gábor Csárdi 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]
> > >>> schwi...@gmx.net>
> > wrote:
> > > >
> > > > Hi,
> > > >
> > > > to get rid of
Re: [Rd] [R] Open a file which name contains a tilde
@ Gabriel:
"Avoid tilde in file names":
Not quite.
A tilde *suffix* is commonly used by *nix editors for backup files
https://unix.stackexchange.com/questions/76189/what-does-the-tilde-mean-at-the-end-of-a-filename
On Wed, Jun 12, 2019 at 2:43 AM Kurt Hornik wrote:
> > 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
> 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]schwi...@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, Gábor Csárdi 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]
> >>> schwi...@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.r...@gmail.com> wrote:
> > > >
> > > > On Wed, 5 Jun 2019 18:07:15 +0200
> > > > Frank Schwidom <[2][6]schwi...@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.
> > > >
> > > > C
Re: [Rd] [R] Open a file which name contains a tilde
> 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 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]schwi...@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, Gábor Csárdi 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]
>>> schwi...@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.r...@gmail.com> wrote:
> > >
> > > On Wed, 5 Jun 2019 18:07:15 +0200
> > > Frank Schwidom <[2][6]schwi...@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.
> > >
>>>
