If you really want to learn regex, you'll have a hard time piecing it all togeth... | Hacker News

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gorjusborg 10 months ago | parent | context | favorite | on: Regex character "$" doesn't mean "end-of-string"

If you really want to learn regex, you'll have a hard time piecing it all together via blog posts.

Brad Freidl's Mastering Regular Expressions is a good book to read if you want to stop being surprised/lost.

I'll admit I stopped at the dive into DFA/NFA engine details.

macintux 10 months ago [–]

Writing a string -> NFA -> DFA grep-like tool is one of my most memorable college projects. Had a lot of fun with that, and decades later I ended up reusing some of the concepts for a work project.

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