class Id:
def __init__(self):
self.letter = None
self.id = None
self.digit = None
self.name = ''
#Recursive parsing to determine what combination of letters and digits the id is made up of based on string passed in.
#This builds the name for the id
def parse(self, idStr):
length = len(idStr)
if length <= 1:
self.letter = Letter()
self.letter.parse(idStr)
self.name = self.letter.let
elif idStr[length - 1].isalpha:
self.letter = Letter()
self.letter.parse(idStr[length - 1])
self.id = Id()
self.id.parse(idStr[0:length - 1])
self.name = self.id.name + self.letter.let
elif idStr[length - 1].isnumeric():
self.digit = Digit()
self.digit.parse(idStr[length - 1])
self.id = Id()
self.id.parse(idStr[0:length - 1])
self.name = self.id.name + self.digit.dig
#Simple print
def print(self):
print(self.name, end='')
#Used for determining value of the id
def exec(self):
return self.getValue()
#Sets the value and checks if the variable was ever even initialized
def setValue(self, val):
if TokList.getIdValue(self.name) is None:
print('ERROR: Value not initialized')
TokList.setIdValue(self.name, val)
#Gets value of the variable and checks to see if it was even initialized or even given a value
def getValue(self):
if TokList.getIdValue(
self.name) == 'null' or TokList.getIdValue(self.name) is None:
print('ERROR: Value undeclared')
exit()
return int(TokList.getIdValue(self.name))
