Good point. I'll see what I can do.

It's not implemented yet. I'll add it in an update. Thanks for letting me know!

Unfortunately that's a limitation of the syntax highlighter. It only ever looks at one line at a time. So in the case of "---" it would have to mark the previous line as a headline. That's not supported by TextMate's syntax definitions.

I recommend to use "#" for headlines.

Did you try to drag the icon from the window title to your browser?

Textastic uses information in the bundle's info.plist file to determine if it should load the custom bundle instead or in addition to a bundle that ships with the app. When the info.plist of a custom bundle has the same uuid as a bundle that ships with the app, the custom bundle is used instead of the integrated bundle.

If you want to use your syntax file, you therefore need to create a ".tmbundle" directory with a "Syntaxes" directory. There must be an info.plist file in the ".tmbundle" directory.

Textastic for Mac supports the same languages as Textastic for iPad. See http://www.textasticapp.com/v4/manual/lessons/Which_file_types_are_supported.html

Pascal is supported, which should work rather well for Delphi, too.

Textastic doesn't support TextMate snippets, but uses its own syntax for code completion and template files: https://github.com/blach/Textastic-Customization