+ # From here on in it's all looking at the queue
+ self.token = self.inqueue.pop(0)
+ if self.token == IHEOL:
+ self.type = IHEOL
+ return IHEOL
+ try:
+ self.real = float(self.token)
+ self.type = IHREAL
+ return IHREAL
+ except ValueError:
+ pass
+ # Treat as alpha
+ self.token = self.token.lower()
+ self.type = IHALPHA
+ self.real = None
+ return IHALPHA
+ def push(self, toklist):
+ self.inqueue += toklist
+ def chew(self):
+ # Demand input for next scan
+ self.inqueue = None
+ self.real = self.token = None
+ def chew2(self):
+ # return IHEOL next time
+ self.inqueue = []
+ self.real = self.token = None
+ def sees(self, s):
+ # compares s to item and returns true if it matches to the length of s
+ return s.startswith(self.token)
+ def int(self):
+ # Round token value to nearest integer
+ return int(round(scanner.real + 0.5))