Created
December 21, 2017 20:03
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class Token: | |
def __init__(self, val, mean): | |
self.val = val | |
self.meaning = mean | |
class Tokenizer: | |
def sanitized(self, a): | |
for i in a: | |
if not i.isdigit(): | |
return False | |
if int(i[0]) == 0: | |
return False | |
return True | |
def tokenize(self, a): | |
"return list of tokens" | |
to_tok = a.split('.') | |
assert len(to_tok) == 3 | |
assert self.sanitized(to_tok) == True | |
return_tokens = [] | |
#TODO(goldhaber): simplify | |
for i, k in enumerate(to_tok): | |
if i == 0: | |
t = Token(k, "MAJOR diff") | |
if i == 1: | |
t = Token(k, "MINOR diff") | |
if i == 2: | |
t = Token(k, "PATCH diff") | |
return_tokens.append(t) | |
return return_tokens | |
def comparison(self, a, b, n=3): | |
for i in range(n): | |
if a[i].val > b[i].val: | |
return "version a has a " + a[i].meaning | |
if a[i].val < b[i].val: | |
return "version b has a " + b[i].meaning | |
return "same versions!" | |
def input(self, a, b): | |
#error check | |
if a is None or b is None: | |
return "error! Put stuff in!" | |
#sanitization check | |
l = self.tokenize(a) | |
ltwo = self.tokenize(b) | |
return self.comparison(l, ltwo, len(l)) | |
if __name__ == "__main__": | |
tokens = Tokenizer() | |
assert "same versions!" == tokens.input("1.1.1", "1.1.1") | |
assert "same versions!" == tokens.input("0.0.0", "0.0.0") | |
assert "version b has a sadfkljasdg" == tokens.input("1.0.1", "0.0.0") |
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