mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-24 05:45:05 +00:00
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
from hachoir.core.endian import BIG_ENDIAN, LITTLE_ENDIAN, MIDDLE_ENDIAN
|
|
from hachoir.field import GenericFieldSet
|
|
from hachoir.core.log import Logger
|
|
import hachoir.core.config as config
|
|
|
|
|
|
class Parser(GenericFieldSet):
|
|
"""
|
|
A parser is the root of all other fields. It create first level of fields
|
|
and have special attributes and methods:
|
|
- endian: Byte order (L{BIG_ENDIAN}, L{LITTLE_ENDIAN} or L{MIDDLE_ENDIAN}) of input data ;
|
|
- stream: Data input stream (set in L{__init__()}) ;
|
|
- size: Field set size will be size of input stream.
|
|
"""
|
|
|
|
def __init__(self, stream, description=None):
|
|
"""
|
|
Parser constructor
|
|
|
|
@param stream: Data input stream (see L{InputStream})
|
|
@param description: (optional) String description
|
|
"""
|
|
# Check arguments
|
|
assert hasattr(self, "endian") \
|
|
and self.endian in (BIG_ENDIAN, LITTLE_ENDIAN, MIDDLE_ENDIAN)
|
|
|
|
# Call parent constructor
|
|
GenericFieldSet.__init__(
|
|
self, None, "root", stream, description, stream.askSize(self))
|
|
|
|
def close(self):
|
|
self.stream.close()
|
|
|
|
def __enter__(self):
|
|
return self
|
|
|
|
def __exit__(self, type, value, traceback):
|
|
self.close()
|
|
|
|
def _logger(self):
|
|
return Logger._logger(self)
|
|
|
|
def _setSize(self, size):
|
|
self._truncate(size)
|
|
self.raiseEvent("field-resized", self)
|
|
size = property(lambda self: self._size, doc="Size in bits")
|
|
|
|
path = property(lambda self: "/")
|
|
|
|
# dummy definition to prevent hachoir-core from depending on hachoir-parser
|
|
autofix = property(lambda self: config.autofix)
|