Re: convert markdown to html in new tab

On Thursday, January 9, 2014 2:29:41 PM UTC-6, ZyX wrote:
> On Jan 9, 2014 11:50 PM, "Rick Dooling" <rpdo...@gmail.com> wrote:
>
> >
>
> > On Thursday, January 9, 2014 11:26:15 AM UTC-6, Rick Dooling wrote:
>
> > > On Thursday, January 9, 2014 10:42:47 AM UTC-6, Rick Dooling wrote:
>
> > > > Dear Vim Scripters:
>
> > > >
>
> > > > I know how to run external commands and send the output to new files and such, but I'm wondering if a Vim scripter can help me do something that has to be a common task.
>
> > > >
>
> > > > Assume I have a buffer open in Vim called file.markdown
>
> > > >
>
> > > > I want to run my external markdown processor of choice, say pandoc, on the contents of that buffer and have it appear in a new tab called file.html.
>
> > > >
>
> > > > In other words I don't want a filter to replace the markdown. I want to run the external command and have the output placed in a new appropriately named buffer in a new tab.
>
> > > >
>
> > > > THANK YOU
>
> > > >
>
> > > > Rick
>
> > >
>
> > > Thank you,
>
> > >
>
> > > I shall investigate execute!
>
> >
>
> > Quite an education! Still learning Vim. I mainly just write in it. Very little vim scripting.
>
> >
>
> > This works inside Vim on the command line
>
> >
>
> > :execute "!pandoc % -o html" | :tabe %:t:r.html
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> >
>
> > But I could not map it. I would get weird errors about using :p:h.
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> >
>
> > So I did this instead.
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> >
>
> >
>
> > function! MD()
>
> >         exe "!pandoc % -o html"
>
> >         exe ":tabe %:t:r.html"
>
> > endfunction
>
> You do not need any :exe here in the current state. But you need :exe in the first statement: do not ever use % in shell commands as it is not doing any escaping. E.g. if name of currently edited file contains space first line of function MD will not do its job.
>
>
> You should use
>
>     execute '!pandoc" shellescape(@%, 1) '-o ' shellescape(expand('%:t:r')) '.html'
>
> instead. This does not apply to vim commands: :tabe %:t:r.html is fine.
>
> >
>
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>
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THANK YOU!

I probably would never have noticed the shellescape because I never use spaces in filenames. But always nice to be ready for cross platform.

I'll leave this here for any other neophyte.

function! MD()
exe '!pandoc' shellescape(@%, 1) ' -o ' shellescape(expand('%:t:r')).'.html'
:tabe %:t:r.html
endfunction

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