SickGear/lib/hachoir/parser/misc/hlp.py
JackDandy 980e05cc99 Change Hachoir can't support PY2 so backport their PY3 to prevent a need for system dependant external binaries like mediainfo.
Backported 400 revisions from rev 1de4961-8897c5b (2018-2014).
Move core/benchmark, core/cmd_line, core/memory, core/profiler and core/timeout to core/optional/*
Remove metadata/qt*

PORT: Version 2.0a3 (inline with 3.0a3 @ f80c7d5).
Basic Support for XMP Packets.
tga: improvements to adhere more closely to the spec.
pdf: slightly improved parsing.
rar: fix TypeError on unknown block types.
Add MacRoman win32 codepage.
tiff/exif: support SubIFDs and tiled images.
Add method to export metadata in dictionary.
mpeg_video: don't attempt to parse Stream past length.
mpeg_video: parse ESCR correctly, add SCR value.
Change centralise CustomFragments.
field: don't set parser class if class is None, to enable autodetect.
field: add value/display for CustomFragment.
parser: inline warning to enable tracebacks in debug mode.
Fix empty bytestrings in makePrintable.
Fix contentSize in jpeg.py to account for image_data blocks.
Fix the ELF parser.
Enhance the AR archive parser.
elf parser: fix wrong wrong fields order in parsing little endian section flags.
elf parser: add s390 as a machine type.
Flesh out mp4 parser.

PORT: Version 2.0a1 (inline with 3.0a1).
Major refactoring and PEP8.
Fix ResourceWarning warnings on files. Add a close() method and support for the context manager protocol ("with obj: ...") to parsers, input and output streams.
metadata: get comment from ZIP.
Support for InputIOStream.read(0).
Fix sizeGe when size is None.
Remove unused new_seekable_field_set file.
Remove parser Mapsforge .map.
Remove parser Parallel Realities Starfighter .pak files.
sevenzip: fix for newer archives.
java: update access flags and modifiers for Java 1.7 and update description text for most recent Java.
Support ustar prefix field in tar archives.
Remove file_system* parsers.
Remove misc parsers 3d0, 3ds, gnome_keyring, msoffice*, mstask, ole*, word*.
Remove program parsers macho, nds, prc.
Support non-8bit Character subclasses.
Python parser supports Python 3.7.
Enhance mpeg_ts parser to support MTS/M2TS.
Support for creation date in tiff.
Change don't hardcode errno constant.

PORT: 1.9.1
Internal Only: The following are legacy reference to upstream commit messages.
Relevant changes up to b0a115f8.
Use integer division.
Replace HACHOIR_ERRORS with Exception.
Fix metadata.Data: make it sortable.
Import fixes from e7de492.
PORT: Version 2.0a1 (inline with 3.0a1 @ e9f8fad).
Replace hachoir.core.field with hachoir.field
Replace hachoir.core.stream with hachoir.stream
Remove the compatibility module for PY1.5 to PY2.5.
metadata: support TIFF picture.
metadata: fix string normalization.
metadata: fix datetime regex Fix hachoir bug #57.
FileFromInputStream: fix comparison between None and an int.
InputIOStream: open the file in binary mode.
2018-03-28 00:43:11 +01:00

77 lines
2.8 KiB
Python

"""
Microsoft Windows Help (HLP) parser for Hachoir project.
Documents:
- Windows Help File Format / Annotation File Format / SHG and MRB File Format
written by M. Winterhoff (100326.2776@compuserve.com)
found on http://www.wotsit.org/
Author: Victor Stinner
Creation date: 2007-09-03
"""
from hachoir.parser import Parser
from hachoir.field import (FieldSet,
Bits, Int32, UInt16, UInt32,
NullBytes, RawBytes, PaddingBytes, String)
from hachoir.core.endian import LITTLE_ENDIAN
from hachoir.core.text_handler import (textHandler, hexadecimal,
displayHandler, humanFilesize)
class FileEntry(FieldSet):
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = self["res_space"].value * 8
def createFields(self):
yield displayHandler(UInt32(self, "res_space", "Reserved space"), humanFilesize)
yield displayHandler(UInt32(self, "used_space", "Used space"), humanFilesize)
yield Bits(self, "file_flags", 8, "(=4)")
yield textHandler(UInt16(self, "magic"), hexadecimal)
yield Bits(self, "flags", 16)
yield displayHandler(UInt16(self, "page_size", "Page size in bytes"), humanFilesize)
yield String(self, "structure", 16, strip="\0", charset="ASCII")
yield NullBytes(self, "zero", 2)
yield UInt16(self, "nb_page_splits", "Number of page splits B+ tree has suffered")
yield UInt16(self, "root_page", "Page number of B+ tree root page")
yield PaddingBytes(self, "one", 2, pattern="\xFF")
yield UInt16(self, "nb_page", "Number of B+ tree pages")
yield UInt16(self, "nb_level", "Number of levels of B+ tree")
yield UInt16(self, "nb_entry", "Number of entries in B+ tree")
size = (self.size - self.current_size) // 8
if size:
yield PaddingBytes(self, "reserved_space", size)
class HlpFile(Parser):
PARSER_TAGS = {
"id": "hlp",
"category": "misc",
"file_ext": ("hlp",),
"min_size": 32,
"description": "Microsoft Windows Help (HLP)",
}
endian = LITTLE_ENDIAN
def validate(self):
if self["magic"].value != 0x00035F3F:
return "Invalid magic"
if self["filesize"].value != self.stream.size // 8:
return "Invalid magic"
return True
def createFields(self):
yield textHandler(UInt32(self, "magic"), hexadecimal)
yield UInt32(self, "dir_start", "Directory start")
yield Int32(self, "first_free_block", "First free block")
yield UInt32(self, "filesize", "File size in bytes")
yield self.seekByte(self["dir_start"].value)
yield FileEntry(self, "file[]")
size = (self.size - self.current_size) // 8
if size:
yield RawBytes(self, "end", size)