MediaWiki bold-italics are not parsed properly by Pandoc

[jshtab]

This markup renders incorrectly, in comparison to minecraft.wiki

These are the mutually-supported extensions. Client must now send '''''ExtInfo'''''
packet of its own, followed by a list of zero or more client-supported extensions.
After sending the last of '''''ExtEntry''''' packets, client should activate all
mutually-supported extensions and resume normal login procedure.

cpe-wg (incorrect)	minecraft.wiki (correct)

This appears to be an issue with pandoc's mediawiki reader, and in general, wikitext parsers have a lot of quirks and only MediaWiki itself is capable of rendering wikitext with complete parity.

Things to experiment with:

• Replacing all of the bold-italics (''''') with just bold (''')
• Converting the mediawiki markup to Creole which uses (//**) for italic bold, which should be understood by Pandoc more correctly
• Converting the mediawiki markup to Pandoc or GitHub flavor Markdown

[jshtab]

Since everything other than reStructuredText and maybe org-mode cannot describe tables with cells that span arbitrary amounts of rows and columns, discarding the idea of changing the markup language. I will be removing bold-italics instead.

The minimum reproduction case for the pandoc bug is this:

$ pandoc -f mediawiki -t native
word '''''bold''''' word '''''word'''''
^D
[ Para
    [ Str "word"
    , Space
    , Strong
        [ Emph
            [ Str "bold" , Strong [ Str "''" , Space , Str "word" ] ]
        , Str "word"
        ]
    , Str "''"
    ]
]

You can get the correct reading by placing spaces between the bold and italic syntax:

$ pandoc -f mediawiki -t native
word '' '''bold''' '' word '' '''bold''' ''
^D
[ Para
    [ Str "word"
    , Space
    , Emph [ Strong [ Str "bold" ] ]
    , Space
    , Str "word"
    , Space
    , Emph [ Strong [ Str "bold" ] ]
    ]
]

[jshtab]

After some searching, I got my hands on a build of jgm/pandoc#10766 through a friend with NixOS (thanks @SpiralP)
This bug does not happen on that branch. Unfortunately it will be a while before I can maintain a separate patched pandoc for this project, so removing all the bold-italics will have to do for now.