These are a bit more difficult:
But it was on the internet, not on something before it like Usenet.
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a core building block of RE# is the concept of regex derivatives, which is equally old, and equally forgotten until 2009 when it was rediscovered and 10 years later implemented in .NET for credential scanning.
About the Author: Haoyi is a software engineer, and the author of many open-source Scala tools such as the Ammonite REPL and the Mill Build Tool. If you enjoyed the contents on this blog, you may also enjoy Haoyi's book Hands-on Scala Programming