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regex
An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.
As a platform that allows expressiveness, we want our users to be bold enough to ask and answer questions with either plain text or some markdowns. Compiling markdown to HTML in Rust can be done via the pulldown-cmark crate. We used it in this utility function:
We also used the avenue to sluggify the question title. We used regex to fish out and replace all occurrences of punctuation and symbol characters with an empty string and using the itertools crate, we joined the words back together into a single string, where each word is separated by a hyphen ("-").