Here is another version,
class ChunkeredBuffer:
def __init__(self):
self.buffer = []
self.sentries = []
def append(self, item):
self.buffer.append(item)
def chunk(self, chunkSize, keepFirst = False):
self.sentries.append(len(self.buffer))
forget = self.sentries[:-chunkSize]
if not keepFirst and len(self.sentries) < chunkSize:
return
if forget != []:
last = forget[-1]
self.buffer = self.buffer[last:]
self.sentries = [x - last for x in self.sentries[1:]]
print >> sys.stderr, self.sentries, len(self.sentries), forget
return self.buffer
but i was wondering how i could add, the last items if needed:
it looks . like .
like .
to the previous:
this .
this . is a .
this . is a . test to .
is a . test to . check if it .
test to . check if it . works .
check if it . works . well .
works . well . it looks like .
to have:
this .
this . is a .
this . is a . test to .
is a . test to . check if it .
test to . check if it . works .
check if it . works . well .
works . well . it looks like .
it looks . like .
like .
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