def ratio(s1, s2):
if s1 is None:
raise TypeError("s1 is None")
if s2 is None:
raise TypeError("s2 is None")
s1, s2 = utils.make_type_consistent(s1, s2)
if len(s1) == 0 or len(s2) == 0:
return 0
m = SequenceMatcher(None, s1, s2)
return utils.intr(100 * m.ratio())
def ratio(s1, s2):
if s1 is None:
raise TypeError("s1 is None")
if s2 is None:
raise TypeError("s2 is None")
s1, s2 = utils.make_type_consistent(s1, s2)
if len(s1) == 0 or len(s2) == 0:
return 0
m = SequenceMatcher(None, s1, s2)
return utils.intr(100 * m.ratio())
def partial_ratio(s1, s2):
""""Return the ratio of the most similar substring
as a number between 0 and 100."""
if s1 is None:
raise TypeError("s1 is None")
if s2 is None:
raise TypeError("s2 is None")
s1, s2 = utils.make_type_consistent(s1, s2)
if len(s1) == 0 or len(s2) == 0:
return 0
if len(s1) <= len(s2):
shorter = s1
longer = s2
else:
shorter = s2
longer = s1
m = SequenceMatcher(None, shorter, longer)
blocks = m.get_matching_blocks()
# each block represents a sequence of matching characters in a string
# of the form (idx_1, idx_2, len)
# the best partial match will block align with at least one of those blocks
# e.g. shorter = "abcd", longer = XXXbcdeEEE
# block = (1,3,3)
# best score === ratio("abcd", "Xbcd")
scores = []
for block in blocks:
long_start = block[1] - block[0] if (block[1] - block[0]) > 0 else 0
long_end = long_start + len(shorter)
long_substr = longer[long_start:long_end]
m2 = SequenceMatcher(None, shorter, long_substr)
r = m2.ratio()
if r > 0.995:
return 100
else:
scores.append(r)
return int(100 * max(scores))
def partial_ratio(s1, s2):
""""Return the ratio of the most similar substring
as a number between 0 and 100."""
if s1 is None:
raise TypeError("s1 is None")
if s2 is None:
raise TypeError("s2 is None")
s1, s2 = utils.make_type_consistent(s1, s2)
if len(s1) == 0 or len(s2) == 0:
return 0
if len(s1) <= len(s2):
shorter = s1
longer = s2
else:
shorter = s2
longer = s1
m = SequenceMatcher(None, shorter, longer)
blocks = m.get_matching_blocks()
# each block represents a sequence of matching characters in a string
# of the form (idx_1, idx_2, len)
# the best partial match will block align with at least one of those blocks
# e.g. shorter = "abcd", longer = XXXbcdeEEE
# block = (1,3,3)
# best score === ratio("abcd", "Xbcd")
scores = []
for block in blocks:
long_start = block[1] - block[0] if (block[1] - block[0]) > 0 else 0
long_end = long_start + len(shorter)
long_substr = longer[long_start:long_end]
m2 = SequenceMatcher(None, shorter, long_substr)
r = m2.ratio()
if r > .995:
return 100
else:
scores.append(r)
return int(100 * max(scores))
