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Okay let me get this straight... Are you saying that I don't need to use parenthesis as much in lisp? Instead I could define a few "reader macros" and then imm

Okay let me get this straight... Are you saying that I don't need to use parenthesis as much in lisp? Instead I could define a few "reader macros" and then immediately have a different syntax? Say if I wanted to change (if (test-clause) (action1) (action2)) To if (test-clause) do (action1) else (action2) Is this actually possible inline in lisp, meaning I just need to import a library that implements the if-reader-macro?

sph 4y ago
For this concept of user-defined languages/DSLs, look no further than Racket.
fiddlerwoaroof 4y ago
This works in many Common Lisp implementations: https://readable.sourceforge.io https://readable.sourceforge.io
- vitiral 4y ago
  Cool stuff, thanks.
kazinator 4y ago
Yes; for isntance see the CMU infix.cl file from the 1990's: https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/lisp/code/syntax/infix/infix.cl https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/... It has test cases at the bottom. like checking that f(a)*=g(b) expands to (setf (f a) (* (f a) (g b)))) The module installs the syntax under the #i dispatch characters; you wrap the infix expression with #I( ... )