mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-12-25 04:02:46 +01:00
141 lines
4.0 KiB
Python
141 lines
4.0 KiB
Python
#!/usr/bin/env python
|
|
|
|
###
|
|
# Copyright (c) 2002, Jeremiah Fincher
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions, and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions, and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# * Neither the name of the author of this software nor the name of
|
|
# contributors to this software may be used to endorse or promote products
|
|
# derived from this software without specific prior written consent.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
###
|
|
|
|
"""
|
|
Fixes stuff that Python should have but doesn't.
|
|
"""
|
|
|
|
__revision__ = "$Id$"
|
|
|
|
__all__ = []
|
|
|
|
exported = ['ignore', 'catch', 'reviter', 'window', 'group',
|
|
'partition', 'any', 'all', 'rsplit', 'curry']
|
|
|
|
import new
|
|
import string
|
|
string.ascii = string.maketrans('', '')
|
|
|
|
curry = new.instancemethod
|
|
|
|
def ignore(*args, **kwargs):
|
|
"""Simply ignore the arguments sent to it."""
|
|
pass
|
|
|
|
def catch(f, *args, **kwargs):
|
|
"""Catches all exceptions raises by f."""
|
|
try:
|
|
return f(*args, **kwargs)
|
|
except:
|
|
return None
|
|
|
|
def reviter(L):
|
|
"""Iterates through a list in reverse."""
|
|
for i in xrange(len(L) - 1, -1, -1):
|
|
yield L[i]
|
|
|
|
def window(L, size):
|
|
"""Returns a sliding 'window' through the list L of size size."""
|
|
if size < 1:
|
|
raise ValueError, 'size <= 0 unallowed.'
|
|
for i in xrange(len(L) - (size-1)):
|
|
yield L[i:i+size]
|
|
|
|
import itertools
|
|
def ilen(iterator):
|
|
"""Returns the length of an iterator."""
|
|
i = 0
|
|
for _ in iterator:
|
|
i += 1
|
|
return i
|
|
itertools.ilen = ilen
|
|
|
|
def group(seq, groupSize, noneFill=True):
|
|
"""Groups a given sequence into sublists of length groupSize."""
|
|
ret = []
|
|
L = []
|
|
i = groupSize
|
|
for elt in seq:
|
|
if i > 0:
|
|
L.append(elt)
|
|
else:
|
|
ret.append(L)
|
|
i = groupSize
|
|
L = []
|
|
L.append(elt)
|
|
i -= 1
|
|
if L:
|
|
if noneFill:
|
|
while len(L) < groupSize:
|
|
L.append(None)
|
|
ret.append(L)
|
|
return ret
|
|
|
|
def partition(p, L):
|
|
"""Partitions a list L based on a predicate p. Returns a (yes,no) tuple"""
|
|
no = []
|
|
yes = []
|
|
for elt in L:
|
|
if p(elt):
|
|
yes.append(elt)
|
|
else:
|
|
no.append(elt)
|
|
return (yes, no)
|
|
|
|
def any(p, seq):
|
|
"""Returns true if any element in seq satisfies predicate p."""
|
|
for elt in itertools.ifilter(p, seq):
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def all(p, seq):
|
|
"""Returns true if all elements in seq satisfy predicate p."""
|
|
for elt in itertools.ifilterfalse(p, seq):
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
def rsplit(s, sep=None, maxsplit=-1):
|
|
"""Equivalent to str.split, except splitting from the right."""
|
|
if sep is not None:
|
|
sep = sep[::-1]
|
|
L = s[::-1].split(sep, maxsplit)
|
|
L.reverse()
|
|
return [s[::-1] for s in L]
|
|
|
|
for name in exported:
|
|
__builtins__[name] = globals()[name]
|
|
|
|
|
|
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
|
|
|