Re: FIguring out pandoc AST and types

[Harsh Donga <harsh-7+aFW328pE6p1wGUEcWPqti2O/JbrIOy@public.gmane.org>]

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Thanks for continued support sir,

I had few couple of doubts,

What does Attr 
<https://hackage.haskell.org/package/pandoc-types-1.22/docs/Text-Pandoc-Definition.html#t:Attr>
 mean?

And can you explain type Meta 
<https://hackage.haskell.org/package/pandoc-types-1.22/docs/Text-Pandoc-Definition.html#t:Meta>?, 
it's going a bit over my head

Thanks in advance!

On Wednesday, 15 September 2021 at 05:09:35 UTC+5:30 John MacFarlane wrote:

> Harsh Donga <ha...-7+aFW328pE6p1wGUEcWPqti2O/JbrIOy@public.gmane.org> writes:
>
> > Thank you for your response,
> >
> > It is getting really hard for me to parse and build pandoc using pandoc 
> > types, as I am Haskell beginner.
> >
> > Please correct me if I am wrong, but the only way to see the JSON output 
> is 
> > by trying out pandoc? I mean for covering all the pandoc-types, I will 
> have 
> > to put everything in a document then parse using pandoc?
> > And then figure out by looking at output how actually all types are 
> stored 
> > in JSON?
>
> There isn't complete documentation of the JSON format we use,
> but it's all very regular and can be predicted from the AST given
> a few examples. Pandoc can be used to give you those examples.
>
> Or, you can look at the ToJSON and FromJSON instance definitions
> in the source code for Text.Pandoc.Definition and figure it out
> from that.
>
> However, if what you want to do is to use Haskell to create a
> pandoc AST, then you don't need to worry about JSON at all. JSON
> is just a serialization format we use for communicating with
> non-Haskell programs. For building a document, what you want is
> Text.Pandoc.Builder, as I said. The documentation contains an
> example to get you started.
>

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