That's quite an old version of Pandoc. You might want to upgrade.

Are you really sure about the syntax/format of your input files? As far as
I know Twiki uses `*bold*` and `_italic_` (and mediawiki uses `'''bold'''`
and `''italic''`). Your files seem to be in some other syntax.

Den tors 9 juni 2022 10:54'Léna Montenot' via pandoc-discuss <
pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> skrev:

> I'm using Pandoc 2.5, and in the original file, the bold syntax is double
> underscores (__ bold text __)
>
> Le mercredi 8 juin 2022 à 20:03:44 UTC+2, BP a écrit :
>
>> Which pandoc version are you using, and which syntax are you using for
>> bold?
>>
>> Den ons 8 juni 2022 15:21'Léna Montenot' via pandoc-discuss <
>> pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> skrev:
>>
>>> Hello !
>>>
>>> Unfortunaly, using the following command :
>>>
>>> pandoc -f mediawiki -t markdown -o file_output.md file_input
>>>
>>> It parses some of the italic, but most are still parsed and now the bold
>>> is also wrong too :/
>>>
>>> Le mercredi 8 juin 2022 à 14:37:37 UTC+2, BPJ a écrit :
>>>
>>>> Do you mean TWiki or MediaWiki?
>>>> If I am not mistaken the TWiki syntax for italics is _italic_ while
>>>> ''italic'' (with double single quotes) is MediaWiki syntax.
>>>>
>>>> Using the proper input format for each syntax gives the expected
>>>> results:
>>>>
>>>> % pandoc -f twiki -t native
>>>> _italic_
>>>> [ Para [ Emph [ Str "italic" ] ] ]
>>>>
>>>> % pandoc -f mediawiki -t native
>>>> ''italic''
>>>> [ Para [ Emph [ Str "italic" ] ] ]
>>>>
>>>> While mismatched input format—syntax does not work, which is also
>>>> expected:
>>>>
>>>> % pandoc -f twiki -t native
>>>> ''italic'"
>>>> [ Para [ Str "''italic'\"" ] ]
>>>>
>>>> % pandoc -f mediawiki -t native
>>>> _italic_
>>>> [ Para [ Str "_italic_" ] ]
>>>>
>>>> It seems your wiki files are mediawiki instead of twiki, in which case
>>>> you should specify mediawiki as input format. In case you have a mixture of
>>>> both the presence of double and triple single quotes is a pretty sure
>>>> indicator that you have a mediawiki file.
>>>>
>>>> Den ons 8 juni 2022 13:59'Léna Montenot' via pandoc-discuss <
>>>> pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> skrev:
>>>>
>>>>> Hello,
>>>>>
>>>>> I want to use Pandoc to export some wiki articles towards a new
>>>>> platforms. However, whenever I'm converting a TWiki file to Markdown, while
>>>>> the bold sections are parsed correctly, the italics are being replaced from
>>>>> '' to \'\' which is not ideal to automate the process.
>>>>>
>>>>> Is there any fix available ? Thank you :)
>>>>>
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>>>>> .
>>>>>
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>>>
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