The Markup Language Preferences have one main goal: To properly detect markup-formatted files. In addition to specifying your own special file extensions, this system can also specify which markup language to use for a particular file-type.
This option is a convenient way to split large, markup-formatted documents into chapters. Headings are used as a starting point for separating individual chapters. An example in the Markdown language:
## First heading ##
... a little text here ...
## Second heading ##
... a little text here ...
A document that has been formatted that way will produce two chapters, namely "First Heading", "Second Heading". The following markup languages support chapter splitting:
Note: This works only with plain text files and appropriate markup-formatting
Note: The special headline formattings for Markdown and MultiMarkdown = and - are not supported.
In the Preferences you can activate if the new Swift Markup Converter should be used to convert tables in the Web-view.
Note: The Swift Markup Converter is optional under macOS Catalina (10.15) or older. In the coming macOS versions, the "old" Markup Converters will no longer be supported, since then the required libraries for the "old" Markup Converters will no longer be included in macOS.