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36 lines
948 B
Python
36 lines
948 B
Python
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# ---------------------------------------------------------
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# natsort.py: Natural string sorting.
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# ---------------------------------------------------------
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# By Seo Sanghyeon. Some changes by Connelly Barnes.
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def try_int(s):
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"Convert to integer if possible."
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try: return int(s)
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except: return s
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def natsort_key(s):
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"Used internally to get a tuple by which s is sorted."
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import re
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return map(try_int, re.findall(r'(\d+|\D+)', s))
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def natcmp(a, b):
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"Natural string comparison, case sensitive."
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return cmp(natsort_key(a), natsort_key(b))
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def natcasecmp(a, b):
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"Natural string comparison, ignores case."
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return natcmp(a.lower(), b.lower())
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def natsort(seq, cmp=natcmp):
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"In-place natural string sort."
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seq.sort(cmp)
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def natsorted(seq, cmp=natcmp):
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"Returns a copy of seq, sorted by natural string sort."
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import copy
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temp = copy.copy(seq)
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natsort(temp, cmp)
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return temp
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