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1996: what the hell is a regular expression?

2005: i encounter almost no programming problems that cannot, it seems to me (an idiot) be solved by a judicious application of regular expressions to strings

2017: i use regular expressions mostly as a shorthand for correcting typos in chat, and mostly screw up the syntax when i do

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@brennen regular expressions are the best way to write cellular automata

@brennen *finite state automata I'm not too smort