js wrote:
> A way I came up with is the following, but I'm sure this is ugly.
You could abuse __getitem__ (terribly, heh!) and use slice syntax...
class crange():
def __init__(self):
self.valid = range(47,58) + range(65,91) + range(97,123)
def __getitem__(self, s):
if isinstance(s, slice):
start, stop = s.start, s.stop
if not start: start = '0'
if isinstance(stop, int) and stop > 122: stop = 'z'
elif not stop: stop = 'z'
clist = []
chars = range(ord(start), ord(stop)+1)
for i in range(len(chars)):
if chars[i] in self.valid:
clist.append(chr(chars[i]))
return ''.join(clist)
else:
return s
cr = crange()
print cr['A':'z']
print cr['0':'8']
print cr[:]
Regards,
Jordan
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