def run(self): "The main run loop for the interpreter" # Run the super class run() method first off Interpreter.run(self) # The pointer and data array are unique to the run-time, so # initialise a pointer to 0 before starting interpreter: pointer = 0 # and set our numbers array to all zeroes, 30,000 times over: arr = [0] * 30000 # Should go through the program string and decide what # to do per-character # To allow iterating backwards through the string, we're # using i to hold the index in the string i = 0 while i < len(self.program): # Hold the current char/command to execute in c c = self.program[i] try: # Try to execute the command here commands[c](self, pointer, arr, i) except KeyError: # If the command isn't found, dictionary will raise a # KeyError exception as the command is the key # We don't much mind, just ignore the key and carry on! pass
def __init__(self, tointerpret):
"Initialize program with the parsed-in program string"
# Initialise the super class
Interpreter.__init__(self, tointerpret)
# Make a copy of the string to interpret while first replacing
# digits/whitespace/word characters with nothing
program = re.sub('[\d\s\w]', '', tointerpret.lower())
