Another Rust Parser

Parsing text input is a common programming task. If you intend to write any kind of software, you are eventually going to be writing some sort of low level parser, because you just can't always count on having a library ready made for the task. For today's post, I'm going to take some lessons learned in writing the gemtext parser for [GemView](https://codeberg.org/jeang3nie/gemview), a few things you're likely to encounter a lot in C code, and write another parser in Rust.