Markdown Editor with no parsing library

Hi everyone! I took this challenge because I wanted to do the parsing myself. Couple questions about my road blocks:

• I'm using Vuejs for the side-by-side formatting. Framework + parsing does okay for most tags, but I wonder if there is a more elegant way to do this besides waiting for a valid Md like in link or bold (inline tags mostly).
• I ended up redoing the parser with regular expressions, which made my code cleaner (and less complex even if it's regex), but lists still had to be processed separately to ensure all list items are in one list. Any other ideas?
• The preview is rendered inside v-html which isn't good from a security point of view. Now this is just Md and there are no inputs or form tags inside the v-html directive, so I guess it's not so bad, but any ideas on how to render the formatted markdown? Thank you!