Ken Takata wrote:
> 2016/8/9 Tue 5:27:12 UTC+9 Bram Moolenaar wrote:
> > Ken Takata wrote:
> >
> > > 2016/8/6 Sat 22:30:05 UTC+9 Bram Moolenaar wrote:
> > > > Ken Takata wrote:
> > > >
> > > > > When process substitution (e.g. "<(cmd)") is used on bash (or zsh),
> > > > > file
> > > > > encoding detection doesn't work, and an empty buffer is opened.
> > > > > E.g.:
> > > > >
> > > > > $ vim -u NONE --cmd "set fencs=cp932,utf-8" <(echo テスト)
> > > > > # Assuming the system encoding is utf-8.
> > > > >
> > > > > Vim will be executed with the command line like:
> > > > >
> > > > > $ vim -u NONE --cmd "set fencs=cp932,utf-8" /dev/fd/63
> > > > >
> > > > > "/dev/fd/63" is a fifo and it is not seekable.
> > > > > The echoed string "テスト" (utf-8) cannot be converted from cp932 to
> > > > > utf-8, so
> > > > > Vim retries with utf-8, but it fails because the input is not
> > > > > seekable.
> > > > >
> > > > > However reading from stdin can detect the encoding. E.g.:
> > > > >
> > > > > $ echo テスト | vim -u NONE --cmd "set fencs=cp932,utf-8" -
> > > > >
> > > > > I think file encoding detection should also work with process
> > > > > substitution.
> > > > > Attached patch fixes the problem.
> > > >
> > > > Thanks. It would be good to have a test for this. The encoding
> > > > detection is important, but I don't think there is a test for it.
> > > >
> > > > Reading from stdin and fifo require starting Vim. Test49 does this, it
> > > > just uses ../vim for that. That doesn't work on Windows though. But
> > > > the fifo won't work on Windows either.
> > >
> > > I added a test for this. I also wanted to add a test for stdin on Windows,
> > > but Windows' echo command cannot write Unicode characters to a pipe. So
> > > the
> > > test is disabled on Windows.
> >
> > Thanks. It would be better to use "cat" instead of "echo". Does this
> > also exist on MS-Windows? Or perhaps we can check if it exists.
> > Then we can also use multiple lines in the test.
>
> OK, "type" can be used on Windows.
> Please check the attached patch.
Thanks. Glad you could make it work. I verified that without your
patch the utf8 fifo test fails.
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