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Mini Shell
Mini Shell
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
from datetime import datetime, timedelta
def align_block(raw, multiple=4, pad=b'\0'):
'''
Return raw with enough pad bytes append to ensure its length is a multiple
of 4.
'''
extra = len(raw) % multiple
if extra == 0:
return raw
return raw + pad*(multiple - extra)
class UnknownTable:
def __init__(self, raw):
self.raw = raw
def __call__(self):
return self.raw
def __len__(self):
return len(self.raw)
class DateTimeProperty:
def __init__(self, name):
self.name = name
def __get__(self, obj, type=None):
return datetime(1904, 1, 1) + timedelta(seconds=getattr(obj,
self.name))
def __set__(self, obj, val):
td = val - datetime(1904, 1, 1)
setattr(obj, self.name, int(td.total_seconds()))
class FixedProperty:
def __init__(self, name):
self.name = name
def __get__(self, obj, type=None):
val = getattr(obj, self.name)
return val / 0x10000
def __set__(self, obj, val):
return int(round(val*(0x10000)))
def max_power_of_two(x):
"""
Return the highest exponent of two, so that
(2 ** exponent) <= x
"""
exponent = 0
while x:
x = x >> 1
exponent += 1
return max(exponent - 1, 0)
def load_font(stream_or_path):
raw = stream_or_path
if hasattr(raw, 'read'):
raw = raw.read()
from calibre.utils.fonts.sfnt.container import Sfnt
return Sfnt(raw)
Zerion Mini Shell 1.0