try with python:

cat examples/nil.nilang | python plang.py

nil

try with compiled pypy:

echo "nil" | ./plang-c
nil

echo "true" | ./plang-c
true

echo "false" | ./plang-c
false

echo "42.3" | ./plang-c
42.300000

echo "42" | ./plang-c
42

echo '"hello"' | ./plang-c
"hello"

echo '"he\"ll\"o"' | ./plang-c
"he\"ll\"o"

echo "woot" | ./plang-c
'woot' not bound

echo "__lang_version__" | ./plang-c
0.0.1

echo "()" | ./plang-c
nil

echo '(1 2.3 false nil "asd")' | ./plang-c
(1 2.300000 false nil "asd")

echo '(display 1 2.3 false nil "asd" (dump __lang_version__)) ; comment' | ./plang-c
dump: (__lang_version__)
(1 2.300000 false nil "asd" nil)
nil

echo '(display 1 2.3 false nil "asd" (display __lang_version__)) ; comment' | ./plang-c
(0.0.1)
(1 2.300000 false nil "asd" nil)
nil

echo "((lambda (x) x) 42)" | ./plang-c
42

echo '(display "hi") 42 "end"' | ./plang-c
("hi")
"end"

echo '(def name "bob") (display "hi" name) 42 "end"' | ./plang-c
("hi" "bob")
"end"

cat examples/callcc.plang | ./plang-c
(3)
(2)
nil

echo "(+ 1 3 (* 4 5))" | ./plang-c
24

echo "(< (+ 1 3 (* 4 5)) 25)" | ./plang-c
true

make it fail:

echo "stuff" | ./plang-c
Error reading code at line: -1 column: -1