@lukem @lukem (#bvykn5a) Thank you! 🙇‍♂️ It repro'd!

(#bvykn5a) @lukem Hmmm bug in the Markdown parser? It seems your raw Twt looks like this: ``` 2020-09-05T12:01:08Z @ (#) cc @ re [this](https://github.com/jointwt/twtxt/issues/167#) ```

(#bvykn5a) In fact now that I look at it, it looks like a bug in our code with some very eager regex matching on something that isn't a tag 😢

(#bvykn5a) Only way I can think of to solve this (_because Go's regexp library doesn't have negative look behinds_) is to do something like this: ``` func ExpandTag(conf *Config, db Store, user *User, text string) string { - re := regexp.MustCompile(```#([-\w]+)`) + re := regexp.MustCompile(`[( ,;]#([-\w]+)`) ```

(#bvykn5a) Thoughts?