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#!/usr/bin/python -u
# -*- coding: utf-8 -*-
from struct import unpack
class AXMLReader():
"""Provide various read helpers."""
def __init__(self, data):
self._data = data
self._position = 0
self._length = len(self._data)
def readInt(self):
"""Read a 4-bytes value."""
self.skipInt()
value = unpack('<L', self._data[self._position - 4 : self._position])[0]
return value
def skipInt(self):
"""Skip a 4-bytes value."""
self._position += 4
if self._position > self._length:
raise Exception("Reader out of bound (%d > %d)!" % (self._position, self._length))
def readIntArray(self, length):
"""Read an array composed of 4-bytes values."""
return [ self.readInt() for i in range(0, length) ]
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