Re: Transform a fenced div to mkdocs markdown admonition format

[Aidan Reilly <aireilly-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

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Oh I guess I need to configure https://github.com/pandoc/lua-filters ?

On Sat, Nov 5, 2022 at 1:09 PM Aidan Reilly <aireilly-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:

> Thanks Albert!
>
> I really appreciate you looking at this. When I run the above, I get this
> error:
>
> Error running filter admonitions.lua:
> admonitions.lua:10: attempt to index a nil value (local 'opts')
> stack traceback:
> admonitions.lua:10: in main chunk
>
> Do I need to specify something in the command line? I'm running the build
> like so:
>
> asciidoctor -b docbook -o - $PAGE | pandoc  --markdown-headings=atx
> --shift-heading-level-by=1 --wrap=none -t markdown+backtick_code_blocks
> --lua-filter=admonitions.lua -f docbook - > ./docs/$PAGE.md
>
> On Sat, Nov 5, 2022 at 8:19 AM Albert Krewinkel <
> albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org> wrote:
>
>> Aidan Reilly <aireilly-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> writes:
>>
>> > Trying this, but it's just passing the text of the admonition block
>> > through
>>
>> The order of spaces and newline in the replacement was switched. After
>> some playing around, this is the filter I came up with:
>>
>> ``` lua
>> local admonitions = {
>>   warning   = '!!! warning',
>>   note      = '!!! note',
>>   tip       = '!!! tip',
>>   important = '!!! important',
>>   caution   = '!!! caution'
>> }
>>
>> local opts = PANDOC_WRITER_OPTIONS -- reuse options to render snippets
>> opts.columns = opts.columns - 4    -- admons are indented by four spaces
>> opts.template = nil                -- render a snippet
>>
>> function Div (div)
>>   local admonition_text = admonitions[div.classes[1]]
>>   if not admonition_text then return nil end  -- not an admonition: bail
>>
>>   local md = admonition_text .. '\n' ..
>>     pandoc.write(pandoc.Pandoc(div.content), 'markdown', opts)
>>   return pandoc.RawBlock(
>>     'markdown',
>>     md:gsub('\n*$', '')     -- remove trailing newlines
>>       :gsub('\n', '\n    ') -- indent block
>>   )
>> end
>> ```
>>
>>
>> --
>> Albert Krewinkel
>> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>>
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>>
>
> --
> Aidan
>


-- 
Aidan

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