Inital commit.

This commit is contained in:
2020-03-09 18:44:02 -05:00
commit d0e36ff2ce
2 changed files with 93 additions and 0 deletions
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import token
def flatten_input(input):
tokens = []
tmp = ""
parsing_number = False
for i in range(0, len(input)):
c = input[i]
if c == '.' or c.isdigit():
if len(tokens) > 1:
lookBehind = tokens[len(tokens) - 1]
if lookBehind == token.TokenType.exp_start:
tokens.append(token.Token("^", token.TokenType.power))
if (i + 1) == len(input):
tokens.append(token.Token(tmp + c, token.TokenType.constant))
parsing_number = True
tmp = tmp + c
continue
print(tokens)
def operate(n1, n2, tokenType):
if tokenType == token.TokenType.add:
print("Adding %d and %d to get %d." %(n1, n2, n1 + n2))
elif tokenType == token.TokenType.subtract:
print("Subtracting %d and %d to get %d." %(n1, n2, n1 - n2))
elif tokenType == token.TokenType.multiply:
print("Multiplying %d and %d to get %d" %(n1, n2, n1 * n2))
elif tokenType == token.TokenType.divide:
print("Dividing %d and %d to get %d" %(n1, n2, n1 / n2))
elif tokenType == token.TokenType.power:
print("Raising %d to the power of %d to get %d" %(n1, n2, n1**n2))
else:
raise ValueError(f"Invalid operator value.")
#t1 = token.TokenType()
#t = token.Token("+", token.TokenType.add)
#print(t1.get_operator_verb(t.type))
operate(10, 2, 4)
operate(10, 2, 0)
operate(10, 2, 1)
operate(10, 2, 2)
operate(10, 2, 3)
flatten_input("THis is 96.")
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class Token:
def __init__(self, value, type):
self.value = value
self.type = type
class TokenType:
add = 0
subtract = 1
multiply = 2
divide = 3
power = 4
variable = 5
constant = 6
exp_start = 7
exp_end = 8
unknown = 9
OPERATOR_VERBS = {
0 : "Adding",
1 : "Subtracting",
2 : "Multiplying",
3 : "Dividing",
4 : "Raising"
}
OPERATORS = {
'+' : add,
'-' : subtract,
'*' : multiply,
'^' : power,
'/' : divide
}
def get_operator_verb(self, token):
if not token in self.OPERATOR_VERBS:
raise ValueError("An operator verb could not be found.", "token")
return self.OPERATOR_VERBS[token]
def get_operator(self, character):
if not character in self.OPERATORS:
raise ValueError(f"Invalid operator '{character}' could not be found in the operators list.", "character")
return self.OPERATORS[character]
#t = TokenType()
#t1 = Token("$", TokenType.Unknown)
#print(t.GetOperator(t1.value))