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Impressive. Not only Lisp, but the LaTeX as well. Had never seen anything like the formatting of section 8 before - mind blowing. Thanks for sharing.
by dangom 10y ago
Impressive. Not only Lisp, but the LaTeX as well. Had never seen anything like the formatting of section 8 before - mind blowing.
Thanks for sharing.
- kazinator 10y agoIt is reminiscent to a syntax diagram: https://en.wikipedia.org/wiki/Syntax_diagram https://en.wikipedia.org/wiki/Syntax_diagram If we google for "syntax diagram" or "railroad diagram" there are better examples, like this one: https://i.stack.imgur.com/uDoc4.gif https://i.stack.imgur.com/uDoc4.gif We see all the "railroad paths" through the syntactic combinations. Because it's not a recursive grammar, it's practical to unfold everything in one diagram. Instead of bubbles and arrows, he marked it up with LaTeX nested parentheses in 2D. The whole guide is somewhat similar in flavor to the cheat sheets in mathematics books (trig identities, derivatives, integrals, useful equations, and so on).