mirror of
https://github.com/rdkit/rdkit.git
synced 2026-06-05 22:04:27 +08:00
70 lines
1.1 KiB
Python
70 lines
1.1 KiB
Python
#
|
|
# Copyright (C) 2004 Rational Discovery LLC
|
|
# All Rights Reserved
|
|
#
|
|
""" utility functions for lists
|
|
|
|
"""
|
|
|
|
def CompactListRepr(lst):
|
|
"""
|
|
|
|
>>> CompactListRepr([0,1,1,1,1,0])
|
|
'[0]+[1]*4+[0]'
|
|
>>> CompactListRepr([0,1,1,2,1,1])
|
|
'[0]+[1]*2+[2]+[1]*2'
|
|
>>> CompactListRepr([])
|
|
'[]'
|
|
>>> CompactListRepr((0,1,1,1,1))
|
|
'[0]+[1]*4'
|
|
>>> CompactListRepr('foo')
|
|
"['f']+['o']*2"
|
|
|
|
|
|
"""
|
|
if not len(lst):
|
|
return '[]'
|
|
|
|
components = []
|
|
last = lst[0]
|
|
count = 1
|
|
i = 1
|
|
while(i < len(lst)):
|
|
if lst[i] != last:
|
|
label = '[%s]'%repr(last)
|
|
if count > 1:
|
|
label += '*%d'%count
|
|
components.append(label)
|
|
count = 1
|
|
last = lst[i]
|
|
else:
|
|
count += 1
|
|
i+=1
|
|
if count != 0:
|
|
label = '[%s]'%repr(last)
|
|
if count > 1:
|
|
label += '*%d'%count
|
|
components.append(label)
|
|
|
|
return '+'.join(components)
|
|
|
|
|
|
|
|
|
|
#------------------------------------
|
|
#
|
|
# doctest boilerplate
|
|
#
|
|
def _test():
|
|
import doctest,sys
|
|
return doctest.testmod(sys.modules["__main__"])
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
failed,tried = _test()
|
|
sys.exit(failed)
|
|
|
|
|
|
|