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StairJS.py
55 lines (53 loc) · 1.79 KB
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StairJS.py
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import Parser
import Engine
import sys
if __name__ == '__main__':
sys.setrecursionlimit(100000)
Parser.build("Program")
if len(sys.argv) != 1:
if sys.argv[1] == "-i":
n = 2
else:
n = 1
with open(sys.argv[n]) as file:
ast = Parser.yacc.parse(file.read())
if ast is not None:
args = Engine.StObject()
for i in range(n, len(sys.argv)):
args[i - n] = sys.argv[i]
Engine.glb["args"] = args
try:
Engine.interpret(ast)
except Exception as e:
print("error: ", end="")
print(e)
sys.exit(1)
if len(sys.argv) == 1 or sys.argv[1] == "-i":
if len(sys.argv) == 1:
print("""Stair JavaScript Interpreter V1.0 \n"""
"""Powered by Li Qimai, Hai Jiewen, Chen Guangxiang, Cai Wuwei""")
while True:
statement = input(">>>")
if statement.strip() == "exit":
print("Bye!")
break
if statement.strip() == "":
continue
while True:
line = input("...")
if line == "":
break
statement += line
try:
if statement != "":
ast = Parser.yacc.parse(statement)
if ast:
ret = Engine.interpret(ast, print_result=True)
if ret is not None:
print(ret)
except Exception as e:
print("error: ", end="")
print(e)
# for i in e.args:
# print(i, end=" ")
# print()