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55 lines
1.3 KiB
Python
55 lines
1.3 KiB
Python
import bisect
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#<pycode(py_name)>
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class NearestName:
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"""
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Utility class to help find the nearest name in a given ea/name dictionary
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"""
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def __init__(self, ea_names):
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self.update(ea_names)
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def update(self, ea_names):
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"""Updates the ea/names map"""
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self._names = ea_names
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self._addrs = ea_names.keys()
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self._addrs.sort()
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def find(self, ea):
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"""
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Returns a tupple (ea, name, pos) that is the nearest to the passed ea
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If no name is matched then None is returned
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"""
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pos = bisect.bisect_left(self._addrs, ea)
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# no match
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if pos >= len(self._addrs):
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return None
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# exact match?
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if self._addrs[pos] != ea:
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pos -= 1 # go to previous element
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if pos < 0:
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return None
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return self[pos]
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def _get_item(self, index):
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ea = self._addrs[index]
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return (ea, self._names[ea], index)
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def __iter__(self):
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return (self._get_item(index) for index in xrange(0, len(self._addrs)))
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def __getitem__(self, index):
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"""Returns the tupple (ea, name, index)"""
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if index > len(self._addrs):
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raise StopIteration
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return self._get_item(index)
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extract_name = extract_name2
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#</pycode(py_name)>
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