Re: Passing " &> " shell-command string to shell

On Tuesday, October 29, 2013 11:47:32 AM UTC-4, Gary Johnson wrote:
> On 2013-10-29, AlmostSurely wrote:
>
> > On Tuesday, October 29, 2013 2:15:56 AM UTC-4, Gary Johnson wrote:
>
> > > On 2013-10-28, AlmostSurely wrote:
>
> > > > Hi Gary, this is with Vim 7.4 with spf13, xterm-256color, on Ubuntu 13.10.
>
> > > >
>
> > > > I've been playing around with it and changing the function to:
>
> > > > ==========================================
>
> > > > function! Compile()
>
> > > > :let cmd_string = "g++ -std=c++11 " . expand("%") . ' \&\> ' . expand("%:r") . ".log"
>
> > > > :execute "!echo " . cmd_string
>
> > > > :execute "!" . cmd_string
>
> > > > endfunction
>
> > > > ==========================================
>
> > > >
>
> > > > Produces output:
>
> > > > ==========================================
>
> > > > g++ -std=c++11 file.cpp &> file.log
>
> > > >
>
> > > > Press ENTER or type command to continue
>
> > > > g++: error: &>: No such file or directory
>
> > > > g++: error: file.log: No such file or directory
>
> > > >
>
> > > > shell returned 1
>
> > > >
>
> > > > Press ENTER or type command to continue
>
> > > > ==========================================
>
> > > >
>

> > > > But using the function in the OP does not produce the &> file.log on my machine even... Any ideas?
>
> > >
>
> > > Quoting the &> as you did (\&\>) removes the special meaning of
>
> > > those characters to the shell, so the shell passes them to g++ which
>
> > > sees them as a file name. Also, without the &> redirection, the
>
> > > shell also sees file.log as an argument to be passed to g++ and g++
>
> > > can't find that file, either.
>
> > >
>
> > > If I remove that quoting from &> so that the :let command in that
>
> > > function becomes
>
> > >
>
> > > :let cmd_string = "g++ -std=c++11 " . expand("%") . ' &> ' . expand("%:r") . ".log"
>
> > >
>
> > > then create an empty file.cpp, open it in vim, source the Compile()
>
> > > function and execute
>
> > >
>
> > > :call Compile()
>
> > >
>
> > > I get an output of
>
> > >
>
> > > :!echo g++ -std=c++11 file.cpp &> file.log
>
> > > :!g++ -std=c++11 file.cpp &> file.log
>
> > >
>
> > > shell returned 1
>
> > >
>
> > > Press ENTER or type command to continue
>
> > >
>
> > > and file.log contains
>
> > >
>
> > > cc1plus: error: unrecognized command line option "-std=c++11"
>
> > >
>
> > > (I must have an old version of gcc.) If I use the function from the
>
> > > OP, with the added let, I get the same error message in file.log.
>
> > >
>
> > > Nothing is coming to mind as a reason for it behaving differently
>
> > > for you. You mentioned that you use spf13. Have you tried your
>
> > > function alone, without your ~/.vimrc or any plugins, that is,
>
> > > started as
>
> > >
>
> > > vim -N -u NONE
>
> > >
>
> > > ?
>
> > >
>
> > > Regards,
>
> > > Gary
>
> >
>
> > Good morning Gary. Yep, seems like it works when launched with,
>
> >
>
> > $ vim -u NONE file.cpp
>
> >
>
> > So the spf13's .vimrc seems to be conflicting somehow...
>
> > Unfortunately though, it's 1100+ lines of code... Any ideas what
>
> > kind of variables/commands I should investigate in the .vimrc?
>
> > I'll start a bug report on Steve Francia's github
>
> > (https://github.com/spf13/spf13-vim). Thanks!
>
>
>
> Good Morning,
>
>
>
> The first place I would look would be under
>
>
>
> :options
>
>
>
> in section 22, "executing external commands". You could look at
>
>
>
> :help 'shell'
>
>
>
> at the same time and compare the default values shown there for
>
> 'shell' and the other shell- options with the actual values shown on
>
> the :options page.
>
>
>
> If that doesn't reveal anything, I would start vim as
>
>
>
> vim --noplugin
>
>
>
> to see whether I should concentrate on my plugins or on my ~/.vimrc.
>
> Then I would do a binary search or bisection of the plugin files or
>
> ~/.vimrc to find the offending file/line.
>
>
>
> Sorry I can't think of anything less tedious.
>
>
>
> Regards,
>
> Gary

Thanks for the help - gonna do some more probing tonight.

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