The handling of formats can be tweaked by enabling or disabling format extensions. Running
pandoc --list-extensions=my_format
lists available extensions and their default status. Extensions are enabled by prefixing them with `+`, and disable with `-`:
pandoc --from my_format+enabled_extension-disabled_extension
Example: disable the smart handling of quotes, ellipses, etc in #Markdown with
pandoc --from=markdown-smart