def main():
strm = sys.stdin
theScanner = calcscanner.calcScanner(strm)
theParser = calcparser.calcParser()
ast = theParser.parse(theScanner)
def main():
#strm = sys.stdin
strm = io.StringIO("457+300+300;")
theScanner = calcscanner.calcScanner(strm)
'''while True:
tokenId, lex = theScanner.getToken()
print(tokenId,lex)
if tokenId == 10:
return'''
theParser = calcparser.calcParser()
ast = theParser.parse(theScanner)
def main():
if (len(sys.argv)) != 2:
print("usage: calc filename")
print(
" calc will interpret/compile the expression in the file named")
print(" filename and print its result to standard output")
return
strm = open(sys.argv[1], "r")
theScanner = calcscanner.calcScanner(strm)
theParser = calcparser.calcParser()
ast = theParser.parse(theScanner)
print(ast)
def main():
# unless testing, it should be sys.stdin
#strm = io.StringIO("457+321")
print(
"Enter expressions with +,-,*,/,S (for store), and R (for recall) and terminated by a semicolon (i.e. ;)."
)
strm = sys.stdin
theScanner = calcscanner.calcScanner(strm)
'''
while True:
tokenId, lex = theScanner.getToken()
print(tokenId, lex)
if tokenId == 10:
return
'''
theParser = calcparser.calcParser()
ast = theParser.parse(theScanner)
def main():
strm = sys.stdin
theScanner = calcscanner.calcScanner(strm)
theParser = calcparser.calcParser()
ast = theParser.parse(theScanner)