From: BPJ <bpj-J3H7GcXPSITLoDKTGw+V6w@public.gmane.org>
To: pandoc-discuss <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: How to manipulate with Block elements with Lua filters
Date: Mon, 10 Jan 2022 19:46:20 +0100 [thread overview]
Message-ID: <CADAJKhAzeK-kPd7yHWbtGX=363VvcgFUj8gt_vEMUXfGkBd+ug@mail.gmail.com> (raw)
In-Reply-To: <590abdf0-6bc5-4f37-a978-a46ad5cff5a8n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
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It is neither possible nor needed to convert the whole block to HTML within
the filter; rather you should just inject the start and end tags:
``````lua
-- Create these only once, for speed and resources saving!
local pre = pandoc.RawBlock('html', '<note>')
local post = pandoc.RawBlock('html', '</note>')
function Div (div)
-- The order of the classes shouldn't matter!
if div.classes:includes('replace-me') then
local content = div.content
table.insert(content, 1, pre)
table.insert(content, post)
return content
end
return nil
end
``````
Den mån 10 jan. 2022 15:33Tomáš Kruliš <tomas.krulis@integromat.com> skrev:
> Hello,
>
> I would like to ask how you should, in general, detect and manipulate with
> Pandoc `block` elements. Currently, I am trying to replace `<div
> class='replace-me'>` tag with `<note>` tag in similar (highly simplified)
> HTML file:
>
> ```.{html}
> <html>
> <body>
> <p> First line. </p>
> <div class="replace-me another-class"> This should carry on to converted
> document. </div>
> <p>End.</p>
> </body>
> </html>
> ```
>
> I have tried to detect the `<div>` tag, use `walk_block` to get the
> `<div>` content and put it in `<note>` tag, I also found a code using
> `:walk` method. Lastly, I tried to convert `<div>` content to simple string
> and concatenate that in `RawInline` type:
>
> ```.{lua}
> if elem.t == 'Div' and elem.classes[1] == "replace-me" then
> content = pandoc.utils.stringify(elem.content)
> return pandoc.RawInline('html', '<note>' .. content.. '</note>')
> else
> return elem
> end
> ```
>
> But none of that is working. I would like to ask you, how to work in
> general with `pandoc_walk` or `:walk` (are they the same?) and how to deal
> with my specific situation?
> Thank you very much for any help, I ope that afterwards I will be able to
> help myself a little bit more :)
> Regards Tomas
>
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next prev parent reply other threads:[~2022-01-10 18:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-10 14:32 Tomáš Kruliš
[not found] ` <590abdf0-6bc5-4f37-a978-a46ad5cff5a8n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2022-01-10 18:46 ` BPJ [this message]
[not found] ` <CADAJKhAzeK-kPd7yHWbtGX=363VvcgFUj8gt_vEMUXfGkBd+ug-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2022-01-11 14:07 ` Tomáš Kruliš
[not found] ` <aea85ef4-af50-46e5-8e21-d677801cb971n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2022-01-11 20:56 ` Bastien DUMONT
2022-01-11 21:25 ` Bastien DUMONT
2022-01-12 9:45 ` BPJ
[not found] ` <CADAJKhD6WVs3UxD0Dt0bYLA8mE4-A4n=QyyKrwkT=MYO+QNaVg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2022-01-13 14:40 ` Tomáš Kruliš
2023-06-26 19:12 ` Ioan Muntean
[not found] ` <ae032a8d-4d0a-4608-b479-61965cee2793n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2023-07-05 15:44 ` BPJ
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