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README.md

picolisp

A very simple lisp to learn about interpreters, Lisp and its possibilities.

The BNF grammar will be:

SExpr = AtomicSym | '(' SExpr '.' SExpr ')' | List
List  = '(' SExpr* ')'
AtomicSym = Letter AtomPart
Letter = 'a' | 'b' | ... | 'z'
Number = Digit*
Digit = '0' | '1' | ... | '9'

...