I don't use org myself, but I'm wondering whether the org reader supports
YAML metadata blocks.

*% *pandoc --list-extensions=org

-ascii_identifiers

+auto_identifiers

+citations

-east_asian_line_breaks

-fancy_lists

-gfm_auto_identifiers

-smart

+task_lists

On Tue, 12 Dec 2023 at 01:27, ss2 <okubo.peyton-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Maybe attaching the files was inconvenient.
>
> Haskell code
> ```
> import qualified Data.Text as T
> import Text.Pandoc
> import Text.Pandoc.Walk (query)
>
> -- Extract YAML metadata from document
> getMetaData :: Pandoc -> Meta
> getMetaData (Pandoc meta _) = meta
>
> -- Read an org document with a yaml metadata block and print it
> printDocWithMetaData :: IO ()
> printDocWithMetaData = do
>   input <- readFile "root.org"
>   let readerOpts = def {
>     readerStandalone = True,
>     readerExtensions = enableExtension Ext_yaml_metadata_block
> (getDefaultExtensions $ T.pack "org")
>   }
>   eitherDoc <- runIO $ readOrg readerOpts (T.pack input)
>   doc <- handleError eitherDoc
>   let metaData = getMetaData doc
>   print metaData
> ```
>
> Input file (root.org):
> ```
> ---
> title: Hello, World!
> author:
>   - name: Your Name
>     affiliation: Your Affiliation
> ---
>
> * Introduction
>
> Hello, World! This is a simple org-mode document with a YAML header.
>
> * Conclusion
>
> Thank you for reading!
> ```
>
> Std out:
> ```Meta {unMeta = fromList []}```
>
> The input file contains a yaml metadata block yet the pandoc reader isn't
> extracting it.
>
>
> On Sunday, December 10, 2023 at 11:03:41 PM UTC-6 ss2 wrote:
>
>> Hello Everyone,
>>
>> I'm simply trying to read a markup file (org in this case). I'm able to
>> read its contents but not the metadata. I've tried reading the
>> documentation and looking at a few examples and I'm not sure what I'm doing
>> wrong. The code snippet and file I'm reading are attached below. Here is
>> the output when calling the function:
>>
>> Right (Pandoc (Meta {unMeta = fromList []}) [Para [Str
>> "\8212",SoftBreak,Str "title:",Space,Str "The",Space,Str
>> "document",Space,Str "title",SoftBreak,Str "author:"],BulletList [[Plain
>> [Str "name:",Space,Str "Author",Space,Str "One",SoftBreak,Str
>> "affiliation:",Space,Str "University",Space,Str "of",Space,Str
>> "Somewhere"]],[Plain [Str "name:",Space,Str "Author",Space,Str
>> "Two",SoftBreak,Str "affiliation:",Space,Str "University",Space,Str
>> "of",Space,Str "Nowhere"]]],Para [Str "\8230"],Header 1 ("",[],[]) [Str
>> "Root"],Header 1 ("",[],[]) [Str "Nav"],BulletList [[Plain [Link ("",[],[])
>> [Str "posts"] ("posts/hello-world.org","")]],[Plain [Link ("",[],[])
>> [Str "stream"] ("stream.org","")]]],Para [Str "About",Space,Str "me."]])
>>
>> As you can see the metadata is empty even though there is a yaml metadata
>> block in the source file.
>>
>> My build depends on pandoc >= 3.1  && < 3.2 and pandoc-types >= 1.23.
>>
>> Any help would be greatly appreciated!!
>>
>> Best,
>> P
>>
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