Properly rendering rich text even if start tags are no longer visible

[iiPythonx]

I'm working on a in-terminal text viewer of sorts. It displays text using the rich.panel.Panel class, and the text is only what the user would be able to see (based on their line number, how big their terminal is, etc). I have a problem though. If you scroll down in a file, you can occasionally run into rich formatting errors since certain tags get cut off since when they are no longer printed.

My question, what is the best way of allowing scrolling while also not causing formatting errors.
I have attempted using regex to find all cut off tags and reapply them at the beginning of the panels text, which works but I feel like it's kind of hacky.

Any help would be appreciated. I know it's a weird question but I seriously feel like I'm doing it wrong.

[willmcgugan]

You probably don't want to do basic string operations on console markup if there is a chance you can break tags.

You can convert console markup in to a Text instance, and then further process it.

Here's how you can generate a Text object from markup:

text = Text.from_markup(my_markup)

[iiPythonx]

I'll give that a try, probably attempt to cut out anything that wouldn't be rendered.
Thanks for your time.