def test_list(self):
assert parse('(+ 1 2)') == [Symbol.ADD, 1, 2]
assert parse('(1 2 3 4)') == [1, 2, 3, 4]
assert parse('(func)') == [
Symbol('func'),
]
assert parse('()') == []
def command(self, cmd: str):
print('Executing:', cmd)
result = eval(parse(cmd), env=self.global_env)
if result is not None:
if isinstance(result, int) or isinstance(result, float):
print('Result:', result)
else:
print('Result:', type(result))
print(result)
return result
def _gen_macros(self):
lisp._eval(
lisp.parse('''(begin
(define-macro and (lambda args
(if (null? args) #t
(if (= (length args) 1) (car args)
`(if ,(car args) (and ,@(cdr args)) #f)))))
;; More macros can also go here
)'''), self.env)
def test_strings(self):
assert parse('"foobar"') == "foobar"
assert parse('"foo bar"') == "foo bar"
assert parse(r'"foo\nbar"') == "foo\nbar"
assert parse(r'"foo\tbar"') == "foo\tbar"
assert parse(r'"foo\tbar"') == "foo\tbar"
assert parse(r'"foo\"bar\""') == "foo\"bar\""
def main(prompt="lispy> "):
scheme_completer = WordCompleter(["begin", "call/cc"])
session = PromptSession(lexer=PygmentsLexer(SchemeLexer),
completer=scheme_completer)
while True:
try:
text = session.prompt(prompt)
x = parse(text)
if x is eof_object:
return
val = eval(x)
if val is not None:
print(to_string(val))
except KeyboardInterrupt:
continue
except EOFError:
break
except Exception as e:
print(f"{type(e).__name__}: {e}")
print("GoodBye!")
def test_let(self):
assert parse(':let {x = 1} in (+ x 1)') == [Symbol.LET, [[x, 1]], [Symbol.ADD, x, 1]]
assert parse(':let {x = 1 y = 2} in (+ x y)') == [Symbol.LET, [[x, 1], [y, 2]], [Symbol.ADD, x, y]]
from lispy import var, env, Symbol, parse, eval
run = lambda src, env=None: eval(parse(src), env)
x, y, a, b, c, f, g, h, op = map(Symbol, 'x y a b c f g h op'.split())
class TestGrammarSimple:
def test_infix(self):
assert parse('[1 + 2]') == [Symbol.ADD, 1, 2]
assert parse('[a b c]') == [b, a, c]
def test_let(self):
assert parse(':let {x = 1} in (+ x 1)') == [Symbol.LET, [[x, 1]], [Symbol.ADD, x, 1]]
assert parse(':let {x = 1 y = 2} in (+ x y)') == [Symbol.LET, [[x, 1], [y, 2]], [Symbol.ADD, x, y]]
def test_if(self):
assert parse(':if #t then: 42 :else: 0') == [Symbol.IF, True, 42, 0]
class TestGrammarExtended:
def test_infix(self):
assert parse('[(f a) (op) (g b)]') == [[op], [f, a], [g, b]]
def test_let(self):
assert parse(':let {x = (+ 1 1)} in (+ x 1)') == [Symbol.LET, [[x, [Symbol.ADD, 1, 1]]], [Symbol.ADD, x, 1]]
def test_if(self):
assert parse(':if (h a) then: (f b) :else: (g c)') == [Symbol.IF, [h, a], [f, b], [g, c]]
assert parse(':if #f then: 40 :elif #t then: 42 :else: 0') == [Symbol.IF, False, 40, [Symbol.IF, True, 42, 0]]
def test_quote_is_converted_to_sexpr(self):
assert parse("'42") == [Symbol.QUOTE, 42]
assert parse("'1") == [Symbol.QUOTE, 1]
assert parse("'x") == [Symbol.QUOTE, x]
assert parse("'(1 2 3)") == [Symbol.QUOTE, [1, 2, 3]]
assert parse("'(+ 40 2)") == [Symbol.QUOTE, [Symbol.ADD, 40, 2]]
def _parse(self, cmd):
return lisp.parse(cmd)
def test_infix(self):
assert parse('[1 + 2]') == [Symbol.ADD, 1, 2]
assert parse('[a b c]') == [b, a, c]
def test_let(self):
assert parse(':let {x = (+ 1 1)} in (+ x 1)') == [Symbol.LET, [[x, [Symbol.ADD, 1, 1]]], [Symbol.ADD, x, 1]]
def test_atomic(self):
assert parse('#t') is True
assert parse('#f') is False
assert parse('x') == x
assert parse('+') == Symbol('+')
def _postprocess_line(line):
res = ''
for word in lispy.parse(line):
res += _postprocess_word(word) + ' '
# remove the last space
return res[:-1]
words = [edge.there.name for edge in edges if(re.match("^"+string, edge.there.name))]
return words, len(words)
stageFile = raw_input("Enter the stage text filename: ").strip()
reader = StageReader(stageFile)
reader.printMatrix(reader.graph.m)
#reader.printMatrix(reader.graph.mPrime)
current = reader.graph.nodes[0]
while True:
outer = re.compile("\((.+)\)")
conv = outer.search(current.description)
if conv:
for string in conv.groups():
for part in lispy.sexp("("+string+")"):
eval(lispy.parse(part))
print "\n"+ current.description
if len(current.out) > 0:
for edge in current.out:
print "(",edge.there.name,")", edge.description
next = raw_input("\nWhat would you like to do next? > ").strip()
matched, length = match(next, current.out)
if length > 1 or length < 1:
current = current
print "\nThe name you entered matched", "none" if length < 1 else "more than one", "!"
else:
current = reader.graph.node(matched[0])
else:
print "Congratulations, you have finished the game!"
break
def test_if(self):
assert parse(':if #t then: 42 :else: 0') == [Symbol.IF, True, 42, 0]
def test_nested_list(self):
assert parse('(1 (2 (3 4)))') == [1, [2, [3, 4]]]
assert parse('((1 2 3))') == [[1, 2, 3]]
def test_infix(self):
assert parse('[(f a) (op) (g b)]') == [[op], [f, a], [g, b]]
def test_numbers(self):
assert parse('42') == 42
assert parse('3.14') == 3.14
assert parse('-3.14') == -3.14
def test_if(self):
assert parse(':if (h a) then: (f b) :else: (g c)') == [Symbol.IF, [h, a], [f, b], [g, c]]
assert parse(':if #f then: 40 :elif #t then: 42 :else: 0') == [Symbol.IF, False, 40, [Symbol.IF, True, 42, 0]]
def test_e2e(code, expected):
assert evaluate(compile_bytecode(parse(tokenize(code)))) == expected
("'(one 2 3)", ['one', 2, 3]),
("(define L (list 1 2 3))", None),
("`(testing ,@L testing)", ['testing', 1, 2, 3, 'testing']),
("`(testing ,L testing)", ['testing', [1, 2, 3], 'testing']),
("`,@L", SyntaxError),
("""'(1 ;test comments '
;skip this line
2 ; more ; comments ; ) )
3) ; final comment""", [1, 2, 3]),
]
for (x, expected) in tests:
result = ''
try:
result = lispy.eval(lispy.parse(x))
print(x, '=>', lispy.to_string(result))
ok = (result == expected)
except Exception as e:
print(x, '=raises=>', type(e).__name__, e)
ok = inspect.isclass(expected) and issubclass(
expected, Exception) and isinstance(e, expected)
if not ok:
print('expression: %s' % x)
print(' actual: %s' % result)
print(' expected: %s' % expected)
break
else:
print('PASS')
else:
def test_parse(tokens, expected):
"""assert tokens parse correctly"""
assert parse(tokens) == expected