Ken Takata wrote:
> 2016/7/8 Fri 5:32:58 UTC+9 Bram Moolenaar wrote:
> > Christian Brabandt wrote:
> >
> > > > > On Do, 07 Jul 2016, Bram Moolenaar wrote:
> > > > >
> > > > > >
> > > > > > Patch 7.4.1996
> > > > > > Problem: Capturing the output of a command takes a few commands.
> > > > > > Solution: Add evalcmd().
> > > > > > Files: src/eval.c, runtime/doc/eval.txt,
> > > > > > src/testdir/test_alot.vim,
> > > > > > src/Makefile, src/testdir/test_evalcmd.vim
> > > > >
> > > > > Does that work recursively? e.g. what happens, if you do
> > > > > :echo evalcmd(':redir =>a|syn|redir end')
> > > >
> > > > Nope. The help for :redir says:
> > > >
> > > > Only one ":redir" can be active at a time.
> > >
> > > Sorry, but in that case, I don't see how the evalcmd() is helping much.
> > > I would have rather seen a fixed :redir command. Perhaps make use of
> > > Neovims capture() function?
> > > https://github.com/neovim/neovim/pull/4697
> >
> > Hmm, wasn't aware that people wanted nested redirection.
> > It's not so difficult to make that work, use another redir flag instead
> > of reusing redir_vname.
> >
> > The neovim implementation is similar, but not better.
> > It skips adding spaces where needed.
>
> The neovim implementation is based on mattn's patch.
> https://groups.google.com/d/msg/vim_dev/H3Z3ChSUh_4/beZs6KzYdBsJ
>
> Comparing with mattn's capture(), evalcmd() lacks (at least) two items:
>
> * Checking for sandbox.
Not sure why that would be needed. If you are able to call evalcmd(),
aren't you already out of the sandbox?
> * Accepting a list of strings. (I'm not sure how this is useful.)
That would be easy to add. But I also wondered if it is useful, at
least in that way. And the way it's done you can't pass a multi-line
statement such as "if". Would need to pass a getline function.
--
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228. You spend Saturday night making the counter on your home page
pass that 2000 mark.
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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