Re:Build Your Own Text Editor
by pkaye on Saturday August 03, 2019 @11:19PM
(#20604234)
There is an old one on compilers called "Let's build a compiler by Jack Crenshaw" Its in Pascal but I think there are modern rewrites of it (like C on an x86)
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Here it is, https://compilers.iecc.com/crenshaw/
As for modern, one can follow along using Free Pascal.