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75 lines
2.1 KiB
75 lines
2.1 KiB
# Copyright 2013 Dean Gardiner <gardiner91@gmail.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from caper.helpers import xrange_six
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class CaperClosure(object):
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def __init__(self, value):
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#: :type: str
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self.value = value
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#: :type: CaperClosure
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self.left = None
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#: :type: CaperClosure
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self.right = None
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#: :type: list of CaperFragment
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self.fragments = []
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class CaperFragment(object):
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def __init__(self):
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#: :type: str
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self.value = ""
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#: :type: CaperFragment
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self.left = None
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#: :type: str
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self.left_sep = None
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#: :type: CaperFragment
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self.right = None
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#: :type: str
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self.right_sep = None
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#: :type: int
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self.position = None
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def take(self, direction, count, include_self=True):
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if direction not in ['left', 'right']:
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raise ValueError('Un-Expected value for "direction", expected "left" or "right".')
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result = []
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if include_self:
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result.append(self)
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count -= 1
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cur = self
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for x in xrange_six(count):
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if cur and getattr(cur, direction):
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cur = getattr(cur, direction)
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result.append(cur)
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else:
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result.append(None)
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cur = None
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return result
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def take_left(self, count, include_self=True):
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return self.take('left', count, include_self)
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def take_right(self, count, include_self=True):
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return self.take('right', count, include_self)
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