mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-12 19:12:26 -05:00
0d9fbc1ad7
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer. Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer. Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk! Enjoy!
278 lines
9.2 KiB
Python
278 lines
9.2 KiB
Python
"""
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TrueType Font parser.
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Documents:
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- "An Introduction to TrueType Fonts: A look inside the TTF format"
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written by "NRSI: Computers & Writing Systems"
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http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=IWS-Chapter08
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Author: Victor Stinner
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Creation date: 2007-02-08
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (FieldSet, ParserError,
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UInt16, UInt32, Bit, Bits,
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PaddingBits, NullBytes,
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String, RawBytes, Bytes, Enum,
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TimestampMac32)
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from lib.hachoir_core.endian import BIG_ENDIAN
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from lib.hachoir_core.text_handler import textHandler, hexadecimal, filesizeHandler
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MAX_NAME_COUNT = 300
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MIN_NB_TABLE = 3
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MAX_NB_TABLE = 30
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DIRECTION_NAME = {
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0: u"Mixed directional",
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1: u"Left to right",
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2: u"Left to right + neutrals",
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-1: u"Right to left",
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-2: u"Right to left + neutrals",
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}
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NAMEID_NAME = {
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0: u"Copyright notice",
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1: u"Font family name",
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2: u"Font subfamily name",
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3: u"Unique font identifier",
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4: u"Full font name",
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5: u"Version string",
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6: u"Postscript name",
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7: u"Trademark",
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8: u"Manufacturer name",
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9: u"Designer",
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10: u"Description",
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11: u"URL Vendor",
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12: u"URL Designer",
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13: u"License Description",
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14: u"License info URL",
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16: u"Preferred Family",
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17: u"Preferred Subfamily",
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18: u"Compatible Full",
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19: u"Sample text",
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20: u"PostScript CID findfont name",
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}
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PLATFORM_NAME = {
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0: "Unicode",
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1: "Macintosh",
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2: "ISO",
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3: "Microsoft",
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4: "Custom",
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}
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CHARSET_MAP = {
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# (platform, encoding) => charset
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0: {3: "UTF-16-BE"},
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1: {0: "MacRoman"},
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3: {1: "UTF-16-BE"},
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}
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class TableHeader(FieldSet):
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def createFields(self):
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yield String(self, "tag", 4)
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yield textHandler(UInt32(self, "checksum"), hexadecimal)
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yield UInt32(self, "offset")
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yield filesizeHandler(UInt32(self, "size"))
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def createDescription(self):
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return "Table entry: %s (%s)" % (self["tag"].display, self["size"].display)
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class NameHeader(FieldSet):
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def createFields(self):
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yield Enum(UInt16(self, "platformID"), PLATFORM_NAME)
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yield UInt16(self, "encodingID")
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yield UInt16(self, "languageID")
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yield Enum(UInt16(self, "nameID"), NAMEID_NAME)
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yield UInt16(self, "length")
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yield UInt16(self, "offset")
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def getCharset(self):
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platform = self["platformID"].value
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encoding = self["encodingID"].value
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try:
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return CHARSET_MAP[platform][encoding]
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except KeyError:
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self.warning("TTF: Unknown charset (%s,%s)" % (platform, encoding))
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return "ISO-8859-1"
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def createDescription(self):
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platform = self["platformID"].display
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name = self["nameID"].display
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return "Name record: %s (%s)" % (name, platform)
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def parseFontHeader(self):
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yield UInt16(self, "maj_ver", "Major version")
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yield UInt16(self, "min_ver", "Minor version")
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yield UInt16(self, "font_maj_ver", "Font major version")
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yield UInt16(self, "font_min_ver", "Font minor version")
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yield textHandler(UInt32(self, "checksum"), hexadecimal)
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yield Bytes(self, "magic", 4, r"Magic string (\x5F\x0F\x3C\xF5)")
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if self["magic"].value != "\x5F\x0F\x3C\xF5":
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raise ParserError("TTF: invalid magic of font header")
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# Flags
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yield Bit(self, "y0", "Baseline at y=0")
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yield Bit(self, "x0", "Left sidebearing point at x=0")
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yield Bit(self, "instr_point", "Instructions may depend on point size")
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yield Bit(self, "ppem", "Force PPEM to integer values for all")
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yield Bit(self, "instr_width", "Instructions may alter advance width")
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yield Bit(self, "vertical", "e laid out vertically?")
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yield PaddingBits(self, "reserved[]", 1)
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yield Bit(self, "linguistic", "Requires layout for correct linguistic rendering?")
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yield Bit(self, "gx", "Metamorphosis effects?")
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yield Bit(self, "strong", "Contains strong right-to-left glyphs?")
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yield Bit(self, "indic", "contains Indic-style rearrangement effects?")
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yield Bit(self, "lossless", "Data is lossless (Agfa MicroType compression)")
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yield Bit(self, "converted", "Font converted (produce compatible metrics)")
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yield Bit(self, "cleartype", "Optimised for ClearType")
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yield Bits(self, "adobe", 2, "(used by Adobe)")
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yield UInt16(self, "unit_per_em", "Units per em")
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if not(16 <= self["unit_per_em"].value <= 16384):
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raise ParserError("TTF: Invalid unit/em value")
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yield UInt32(self, "created_high")
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yield TimestampMac32(self, "created")
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yield UInt32(self, "modified_high")
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yield TimestampMac32(self, "modified")
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yield UInt16(self, "xmin")
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yield UInt16(self, "ymin")
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yield UInt16(self, "xmax")
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yield UInt16(self, "ymax")
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# Mac style
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yield Bit(self, "bold")
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yield Bit(self, "italic")
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yield Bit(self, "underline")
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yield Bit(self, "outline")
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yield Bit(self, "shadow")
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yield Bit(self, "condensed", "(narrow)")
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yield Bit(self, "expanded")
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yield PaddingBits(self, "reserved[]", 9)
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yield UInt16(self, "lowest", "Smallest readable size in pixels")
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yield Enum(UInt16(self, "font_dir", "Font direction hint"), DIRECTION_NAME)
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yield Enum(UInt16(self, "ofst_format"), {0: "short offsets", 1: "long"})
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yield UInt16(self, "glyph_format", "(=0)")
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def parseNames(self):
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# Read header
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yield UInt16(self, "format")
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if self["format"].value != 0:
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raise ParserError("TTF (names): Invalid format (%u)" % self["format"].value)
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yield UInt16(self, "count")
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yield UInt16(self, "offset")
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if MAX_NAME_COUNT < self["count"].value:
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raise ParserError("Invalid number of names (%s)"
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% self["count"].value)
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# Read name index
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entries = []
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for index in xrange(self["count"].value):
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entry = NameHeader(self, "header[]")
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yield entry
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entries.append(entry)
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# Sort names by their offset
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entries.sort(key=lambda field: field["offset"].value)
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# Read name value
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last = None
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for entry in entries:
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# Skip duplicates values
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new = (entry["offset"].value, entry["length"].value)
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if last and last == new:
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self.warning("Skip duplicate %s %s" % (entry.name, new))
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continue
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last = (entry["offset"].value, entry["length"].value)
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# Skip negative offset
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offset = entry["offset"].value + self["offset"].value
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if offset < self.current_size//8:
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self.warning("Skip value %s (negative offset)" % entry.name)
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continue
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# Add padding if any
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padding = self.seekByte(offset, relative=True, null=True)
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if padding:
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yield padding
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# Read value
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size = entry["length"].value
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if size:
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yield String(self, "value[]", size, entry.description, charset=entry.getCharset())
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padding = (self.size - self.current_size) // 8
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if padding:
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yield NullBytes(self, "padding_end", padding)
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class Table(FieldSet):
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TAG_INFO = {
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"head": ("header", "Font header", parseFontHeader),
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"name": ("names", "Names", parseNames),
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}
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def __init__(self, parent, name, table, **kw):
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FieldSet.__init__(self, parent, name, **kw)
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self.table = table
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tag = table["tag"].value
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if tag in self.TAG_INFO:
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self._name, self._description, self.parser = self.TAG_INFO[tag]
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else:
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self.parser = None
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def createFields(self):
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if self.parser:
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for field in self.parser(self):
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yield field
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else:
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yield RawBytes(self, "content", self.size//8)
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def createDescription(self):
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return "Table %s (%s)" % (self.table["tag"].value, self.table.path)
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class TrueTypeFontFile(Parser):
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endian = BIG_ENDIAN
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PARSER_TAGS = {
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"id": "ttf",
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"category": "misc",
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"file_ext": ("ttf",),
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"min_size": 10*8, # FIXME
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"description": "TrueType font",
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}
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def validate(self):
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if self["maj_ver"].value != 1:
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return "Invalid major version (%u)" % self["maj_ver"].value
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if self["min_ver"].value != 0:
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return "Invalid minor version (%u)" % self["min_ver"].value
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if not (MIN_NB_TABLE <= self["nb_table"].value <= MAX_NB_TABLE):
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return "Invalid number of table (%u)" % self["nb_table"].value
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return True
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def createFields(self):
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yield UInt16(self, "maj_ver", "Major version")
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yield UInt16(self, "min_ver", "Minor version")
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yield UInt16(self, "nb_table")
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yield UInt16(self, "search_range")
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yield UInt16(self, "entry_selector")
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yield UInt16(self, "range_shift")
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tables = []
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for index in xrange(self["nb_table"].value):
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table = TableHeader(self, "table_hdr[]")
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yield table
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tables.append(table)
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tables.sort(key=lambda field: field["offset"].value)
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for table in tables:
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padding = self.seekByte(table["offset"].value, null=True)
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if padding:
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yield padding
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size = table["size"].value
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if size:
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yield Table(self, "table[]", table, size=size*8)
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padding = self.seekBit(self.size, null=True)
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if padding:
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yield padding
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