Yes I see that Text.Pandoc.Writers.Native is more than what I thought. 

Piping to a file looks better than the Windows terminal. Pretty-printing 
works better there. Additionally, Hans' suggestion above is fine for now.

Regards,
Laurent

On Sunday, June 23, 2019 at 6:22:02 AM UTC-4, John MacFarlane wrote:
>
>
> Actually Text.Pandoc.Writers.Native does do some 
> prettification; it doesn't just do "show."  You can 
> see this if you print something with nested block 
> structure, like lists or blockquotes. 
>
> If there are ways you think this should be improved, 
> feel free to make suggestions or do a PR. 
>
> Laurent René de Cotret <laurent...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <javascript:>> 
> writes: 
>
> > Hello, 
> > 
> > I often work on Pandoc filters, and I regularly look at Pandoc's native 
> > format. 
> > 
> > Here is an example of the output in my terminal: 
> >> pandoc -i myfile.md --to native 
> > [Para [Image ("fig:myfigure",[],[]) [Str "Figure",Space,Str 
> "1:",Space,Str 
> > "This",Space,Str "is",Space,Str "a",Space,Str "caption"] 
> > ("generated/other\\8842295943125512100.jpg","fig:")] 
> > ,Para [Str "As",Space,Str "you",Space,Str "can",Space,Str 
> "see",Space,Str 
> > "in",Space,Str "fig.\160\&1,",Space,Str "pandoc-crossref",Space,Str 
> > "is",Space,Str "compatible",Space,Str "with",Space,Str "the",Space,Str 
> > "ouput",Space,Str "of",Space,Str "pandoc-pyplot."]] 
> > 
> > It would be very useful to get a pretty-printing version of the above, 
> e.g.: 
> > 
> > [ 
> >     Para [ 
> >         Image 
> >             ("fig:myfigure",[],[]) 
> >             [Str "Figure",Space,Str "1:",Space,Str "This",Space,Str 
> > "is",Space,Str "a",Space,Str "caption"] 
> >             ("generated/other\\8842295943125512100.jpg","fig:") 
> >          ], 
> >     Para [ 
> >         Str "As",Space,Str "you",Space,Str "can",Space,Str 
> "see",Space,Str 
> > "in",Space,Str "fig.\160\&1,",Space,Str "pandoc-crossref",Space, 
> >         Str "is",Space,Str "compatible",Space,Str "with",Space,Str 
> > "the",Space,Str "ouput",Space,Str "of",Space, Str "pandoc-pyplot." 
> >          ] 
> > ] 
> > 
> > After a cursory look at the source in Text.Pandoc.Writers.Native, it 
> would 
> > be possible to make a nice, indented, pretty version of native Haskell, 
> > given that WriterOptions type has the writerColumns attribute. 
> > 
> > Is this something that the Pandoc community might be interested in? 
> Should 
> > it be a different format than "native", called "pretty-native" or 
> something? 
> > 
> > I'm happy to put together a pull request. 
> > 
> > Laurent 
> > 
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