Todalu (Kannada for Lisp), is my attempt to write an interpreter for a lisp like language.

git clone https://github.com/sooriravindra/Todalu.git
mkdir Todalu/build; cd Todalu/build
cmake ..
cmake --build .

./todalu # Interactive
./todalu ../testscripts/hello-world.tdl

#Alternatively, copy todalu to $PATH

sudo ln -s /usr/bin/todalu $(readlink -f todalu) # Step 1:  setup todalu
todalu # To run an interactive session
../testscripts/hello-world.tdl # To run a script (Check shebang if it doesn't work)

$ ./todalu
todalu> (+ 20 22)
=> 42
todalu> (- (* 50 2) (/ 40 2) 30)
=> 50
todalu> (def myvar (+ 1 2 3))
=> 6
todalu> (def is-odd (lambda x (eq? (% x 2) 1)))
=> <lambda=94877095594064>
todalu>
todalu> (if (is-odd myvar) (println "That's odd") (println "All good"))
All good
=> "All good"
todalu> (range 1 6)
=> ( 1 2 3 4 5 )
todalu> (filter is-odd (range 1 11))
=> ( 1 3 5 7 9 )
todalu>
=> (progn (print "Enter a number: ") (+ 4 (read)))
Enter a number: 10
=> 14