Clean up code
This commit is contained in:
parent
adfd9b1ba4
commit
9ed1bfcadb
SSH Key Fingerprint:
SHA256:N3w+8798IMWBt7SYH8G1C0iJlIa2HIIcRCXwILT5FvM
109
OpenFontFormat/OFF_io_utils.py
Normal file
109
OpenFontFormat/OFF_io_utils.py
Normal file
@ -0,0 +1,109 @@
|
||||
|
||||
from datetime import datetime, timedelta, timezone
|
||||
from types import TracebackType
|
||||
from typing import BinaryIO, Callable, List, Optional, Tuple, Type, TypeVar
|
||||
|
||||
from io_utils import Parser, read_fixed_point, read_u16, read_u64
|
||||
|
||||
def read_fixed(f: BinaryIO) -> float: # 16.16
|
||||
return read_fixed_point(f, 16, 16)
|
||||
|
||||
def read_fixed_version(f: BinaryIO) -> float: # Not the same as parse_fixed
|
||||
majorVersion = read_u16(f)
|
||||
minorVersion = read_u16(f)
|
||||
assert minorVersion in [0x0000, 0x1000, 0x5000], f"Invalid fixed minorVersion: {hex(minorVersion)}"
|
||||
|
||||
return majorVersion + minorVersion/0xa000 # will need to change if there are ever any versions with 2 decimal digits
|
||||
|
||||
def read_F2DOT14(f: BinaryIO) -> float: # F2DOT14 (2.14)
|
||||
return read_fixed_point(f, 2, 14)
|
||||
|
||||
EPOCH = datetime(1904, 1, 1, tzinfo=timezone.utc)
|
||||
def read_long_datetime(f: BinaryIO) -> datetime:
|
||||
return EPOCH+timedelta(seconds=read_u64(f))
|
||||
|
||||
T = TypeVar('T')
|
||||
|
||||
"""
|
||||
The following `parse_at_...` functions all modify the tell of f, so it is recommended that you use `SaveTell` to wrap calling these.
|
||||
"""
|
||||
|
||||
def parse_at_offset(f: BinaryIO, start_tell: int, offset: int, parser: Parser[T], *, zero_is_null:bool=True) -> T:
|
||||
"""
|
||||
Parses a `T` using `parser` at an offset of `offset` from `start_tell`.
|
||||
|
||||
If `zero_is_null` is True, then `offset` cannot be 0.
|
||||
Only set `zero_is_null` to False when you are sure that 0 is a valid offset
|
||||
"""
|
||||
if zero_is_null: assert offset != 0, f"Offset was NULL"
|
||||
f.seek(start_tell+offset)
|
||||
return parser(f)
|
||||
|
||||
def parse_at_optional_offset(f: BinaryIO, start_tell: int, offset: int, parser: Parser[T]) -> Optional[T]:
|
||||
"""
|
||||
Same as `parse_at_offset`, however if the offset is NULL (0), then None is returned.
|
||||
|
||||
Should not be used when 0 is a valid offset to something.
|
||||
"""
|
||||
if offset == 0: return None
|
||||
return parse_at_offset(f, start_tell, offset, parser, zero_is_null=True)
|
||||
|
||||
def parse_at_offsets(f: BinaryIO, start_tell: int, offsets: List[int], parser: Parser[T], *, zero_is_null:bool=True) -> List[T]:
|
||||
return [parse_at_offset(f, start_tell, offset, parser, zero_is_null=zero_is_null) for offset in offsets]
|
||||
|
||||
def parse_at_optional_offsets(f: BinaryIO, start_tell: int, offsets: List[int], parser: Parser[T]) -> List[Optional[T]]:
|
||||
return [parse_at_optional_offset(f, start_tell, offset, parser) for offset in offsets]
|
||||
|
||||
def parse_at_offsets_using_length(f: BinaryIO, start_tell: int, offsets: List[int], parser: Callable[[BinaryIO, int, int], T], *, zero_is_null:bool=True) -> List[Optional[T]]:
|
||||
"""
|
||||
The length of the returned list will be one less than that of `offsets`, as the last offset is used to calculate the length of the final element.
|
||||
|
||||
`parser` is of the form `(f: BinaryIO, index: int, length: int) -> T`
|
||||
"""
|
||||
|
||||
elements: List[Optional[T]] = []
|
||||
for i, offset in enumerate(offsets[:-1]):
|
||||
length = offsets[i+1]-offset
|
||||
if length == 0:
|
||||
elements.append(None)
|
||||
continue
|
||||
|
||||
elements.append(parse_at_offset(f, start_tell, offset, lambda f: parser(f, i, length), zero_is_null=zero_is_null))
|
||||
|
||||
return elements
|
||||
|
||||
def parse_list_at_offset(f: BinaryIO, start_tell: int, offset: int, count: int, parser: Parser[T], *, zero_is_null:bool=True) -> List[T]:
|
||||
"""
|
||||
Parses a continuous list of `T`s with `count` elements.
|
||||
"""
|
||||
return parse_at_offset(f, start_tell, offset, lambda f: [parser(f) for _ in range(count)], zero_is_null=zero_is_null)
|
||||
|
||||
def parse_list_and_use_offsets_into(f: BinaryIO, start_tell: int, offsets: list[int], count: int, parser: Parser[T]) -> Tuple[List[T], List[T]]:
|
||||
elements = [(f.tell(), parser(f)) for _ in range(count)]
|
||||
elements_by_offset_into: List[T] = []
|
||||
for offset in offsets:
|
||||
for (offset_into, element) in elements:
|
||||
if offset + start_tell == offset_into:
|
||||
elements_by_offset_into.append(element)
|
||||
break
|
||||
else:
|
||||
assert False, (f"No element with offset {offset} into this list of elements", start_tell, offsets, elements)
|
||||
return elements_by_offset_into, [element for (_, element) in elements]
|
||||
|
||||
class SaveTell:
|
||||
"""
|
||||
A context manager that allows operations to be done on a BinaryIO without affecting the tell.
|
||||
"""
|
||||
def __init__(self, f: BinaryIO):
|
||||
self.f = f
|
||||
|
||||
def __enter__(self) -> int:
|
||||
self.tell = self.f.tell()
|
||||
return self.tell
|
||||
|
||||
def __exit__(self, exc_type: Optional[Type[BaseException]], exc_value: Optional[BaseException], exc_tb: Optional[TracebackType]):
|
||||
self.f.seek(self.tell)
|
||||
|
||||
|
||||
def null_if_zero(n: int) -> Optional[int]: return n if n else None
|
||||
def nulls_if_zero(ns: List[int]) -> List[Optional[int]]: return list(map(null_if_zero, ns))
|
||||
@ -1,29 +1,15 @@
|
||||
from dataclasses import dataclass
|
||||
from datetime import datetime, timedelta, timezone
|
||||
from datetime import datetime
|
||||
from enum import Enum, EnumMeta
|
||||
from io import BytesIO
|
||||
from math import floor, log2
|
||||
from types import TracebackType
|
||||
from typing import Callable, Generic, List, Optional, Tuple, Type, TypeVar, BinaryIO, Self
|
||||
from typing import Callable, Generic, List, Optional, Tuple, TypeVar, BinaryIO
|
||||
|
||||
from OFF_io_utils import SaveTell, null_if_zero, parse_at_offset, parse_at_offsets, parse_at_offsets_using_length, parse_at_optional_offset, parse_at_optional_offsets, parse_list_and_use_offsets_into, parse_list_at_offset, read_F2DOT14, read_fixed, read_fixed_version, read_long_datetime
|
||||
from abcde import ABD, ABE
|
||||
from io_utils import read_ascii, read_fixed_point, read_i16, read_i32, read_i8, read_int, read_pascal_string, read_u16, read_u24, read_u32, read_u64, read_u8
|
||||
from io_utils import Parser, is_at_end, len_to_end, read_ascii, read_i16, read_i32, read_i8, read_int, read_pascal_string, read_u16, read_u24, read_u32, read_u64, read_u8
|
||||
|
||||
def read_fixed(f: BinaryIO) -> float: # 16.16
|
||||
return read_fixed_point(f, 16, 16)
|
||||
|
||||
def read_fixed_version(f: BinaryIO) -> float: # Not the same as parse_fixed
|
||||
majorVersion = read_u16(f)
|
||||
minorVersion = read_u16(f)
|
||||
assert minorVersion in [0x0000, 0x1000, 0x5000], f"Invalid fixed minorVersion: {hex(minorVersion)}"
|
||||
|
||||
return majorVersion + minorVersion/0x1000/10 # will need to change if there are ever any versions with 2 decimal digits
|
||||
|
||||
def read_F2DOT14(f: BinaryIO) -> float: # F2DOT14 (2.14)
|
||||
return read_fixed_point(f, 2, 14)
|
||||
|
||||
def read_long_datetime(f: BinaryIO) -> datetime:
|
||||
return datetime(1904, 1, 1, tzinfo=timezone.utc)+timedelta(seconds=read_u64(f))
|
||||
T = TypeVar('T')
|
||||
|
||||
Tag_ = TypeVar('Tag_')
|
||||
SomeTag = Callable[[str], Tag_] # If SomeTag is not an EnumMeta, it should throw a ValueError to indicate an invalid tag
|
||||
@ -38,11 +24,12 @@ def read_tag_with_conditions(f: BinaryIO, *conditions: Tuple[Callable[[str], boo
|
||||
else:
|
||||
assert False, f"Invalid {umbrellaTagCls.__name__}: '{tag}'"
|
||||
|
||||
always: Callable[[str], bool] = lambda _: True
|
||||
def read_tag_from_tags(f: BinaryIO, *tagClss: SomeTag[Tag_], umbrellaTagCls: type | SomeTag[Tag_], strict:bool=True) -> Tag_:
|
||||
"""
|
||||
This is meant to be used for when some instances of an Enum are just CC01, CC02, CC03, ...
|
||||
"""
|
||||
return read_tag_with_conditions(f, *[(lambda _: True, tagCls) for tagCls in tagClss], umbrellaTagCls=umbrellaTagCls, strict=strict)
|
||||
return read_tag_with_conditions(f, *[(always, tagCls) for tagCls in tagClss], umbrellaTagCls=umbrellaTagCls, strict=strict)
|
||||
|
||||
def read_tag(f: BinaryIO, tagCls: SomeTag[Tag_], *, strict:bool=True) -> Tag_:
|
||||
return read_tag_from_tags(f, tagCls, umbrellaTagCls=tagCls, strict=strict)
|
||||
@ -50,9 +37,6 @@ def read_tag(f: BinaryIO, tagCls: SomeTag[Tag_], *, strict:bool=True) -> Tag_:
|
||||
ID_ = TypeVar('ID_')
|
||||
SomeID = Callable[[int], ID_]
|
||||
|
||||
T = TypeVar('T')
|
||||
Parser = Callable[[BinaryIO], T]
|
||||
|
||||
def read_id_from_ranges(f: BinaryIO, *ranges: Tuple[Optional[int], SomeID[ID_]], umbrellaIdCls: SomeID[ID_], reader: Parser[int]=read_u16) -> ID_: # must be in ascending order
|
||||
assert len(ranges) > 0, f"Must have at least one range"
|
||||
id = reader(f)
|
||||
@ -60,67 +44,11 @@ def read_id_from_ranges(f: BinaryIO, *ranges: Tuple[Optional[int], SomeID[ID_]],
|
||||
if num is not None and id > num: continue
|
||||
try: return idCls(id)
|
||||
except ValueError: pass
|
||||
assert False, f"Invalid {umbrellaIdCls.__name__}: {id}"
|
||||
assert False, f"Invalid {umbrellaIdCls.__name__}: {id} (hex: {repr_hex(id, 2)})"
|
||||
|
||||
def read_id(f: BinaryIO, idCls: SomeID[ID_], *, reader: Parser[int]=read_u16) -> ID_:
|
||||
return read_id_from_ranges(f, (None, idCls), umbrellaIdCls=idCls, reader=reader)
|
||||
|
||||
class SaveTell:
|
||||
def __init__(self, f: BinaryIO):
|
||||
self.f = f
|
||||
|
||||
def __enter__(self) -> int:
|
||||
self.tell = self.f.tell()
|
||||
return self.tell
|
||||
|
||||
def __exit__(self, exc_type: Optional[Type[BaseException]], exc_value: Optional[BaseException], exc_tb: Optional[TracebackType]) -> None:
|
||||
self.f.seek(self.tell)
|
||||
|
||||
# The following `parse_at_...` functions all move the BinaryIO away from wherever it was, so use `with SaveTell(f): ...` to save the tell
|
||||
|
||||
def parse_at_offset(f: BinaryIO, start_tell: int, offset: int, parser: Parser[T], *, zero_is_null:bool=True) -> T:
|
||||
if zero_is_null: # Some tables have 0 being a valid offset
|
||||
assert offset, f"Offset was NULL"
|
||||
f.seek(start_tell+offset)
|
||||
return parser(f)
|
||||
|
||||
def parse_at_optional_offset(f: BinaryIO, start_tell: int, offset: Optional[int], parser: Parser[T], *, zero_is_null:bool=True) -> Optional[T]:
|
||||
if zero_is_null:
|
||||
if not offset: return None
|
||||
else:
|
||||
if offset is None: return None
|
||||
return parse_at_offset(f, start_tell, offset, parser, zero_is_null=zero_is_null)
|
||||
|
||||
def parse_at_offsets(f: BinaryIO, start_tell: int, offsets: List[int], parser: Parser[T], *, zero_is_null:bool=True) -> List[T]:
|
||||
return [parse_at_offset(f, start_tell, offset, parser, zero_is_null=zero_is_null) for offset in offsets]
|
||||
|
||||
def parse_at_optional_offsets(f: BinaryIO, start_tell: int, offsets: List[int], parser: Parser[T], *, zero_is_null:bool=True) -> List[Optional[T]]:
|
||||
return [parse_at_optional_offset(f, start_tell, offset, parser, zero_is_null=zero_is_null) for offset in offsets]
|
||||
|
||||
def parse_at_offsets_using_length(f: BinaryIO, start_tell: int, offsets: List[int], parser: Callable[[BinaryIO, int, int], T], *, zero_is_null:bool=True) -> List[Optional[T]]:
|
||||
"""
|
||||
The length of the returned list will be one less than that of `offsets`, as the last offset is used to calculate the length of the final element.
|
||||
|
||||
`parser` is of the form `(f: BinaryIO, index: int, length: int) -> T`
|
||||
"""
|
||||
|
||||
elements: List[Optional[T]] = []
|
||||
for i, offset in enumerate(offsets[:-1]):
|
||||
length = offsets[i+1]-offset
|
||||
if length == 0:
|
||||
elements.append(None)
|
||||
continue
|
||||
|
||||
elements.append(parse_at_offset(f, start_tell, offset, lambda f: parser(f, i, length), zero_is_null=zero_is_null))
|
||||
|
||||
return elements
|
||||
|
||||
def parse_list_at_offset(f: BinaryIO, start_tell: int, offset: int, count: int, parser: Parser[T], *, zero_is_null:bool=True) -> List[T]:
|
||||
return parse_at_offset(f, start_tell, offset, lambda f: [parser(f) for _ in range(count)], zero_is_null=zero_is_null)
|
||||
|
||||
def null_if_zero(n: int) -> Optional[int]: return n if n else None
|
||||
def nulls_if_zero(ns: List[int]) -> List[Optional[int]]: return list(map(null_if_zero, ns))
|
||||
|
||||
@dataclass
|
||||
class Table(ABD): pass
|
||||
|
||||
@ -165,9 +93,12 @@ class OffsetTable(Table):
|
||||
entrySelector: int
|
||||
rangeShift: int
|
||||
|
||||
def repr_hex(value: int, length: int=8) -> str:
|
||||
return f"0x{hex(value)[2:]:0>{length}}"
|
||||
|
||||
def parse_offset_table(f: BinaryIO) -> OffsetTable:
|
||||
sfntVersion = read_u32(f)
|
||||
assert sfntVersion in [0x00010000, 0x4F54544F], f"Invalid sfntVersion: 0x{hex(sfntVersion)[2:]:0>8}. Expected 0x00010000 or 0x4F54544F."
|
||||
assert sfntVersion in [0x00010000, 0x4F54544F], f"Invalid sfntVersion: {repr_hex(sfntVersion)}. Expected 0x00010000 or 0x4F54544F."
|
||||
numTables = read_u16(f)
|
||||
searchRange = read_u16(f)
|
||||
entrySelector = read_u16(f)
|
||||
@ -175,7 +106,7 @@ def parse_offset_table(f: BinaryIO) -> OffsetTable:
|
||||
assert bin(searchRange).count('1') == 1 # ensure searchRange is a power of 2
|
||||
assert searchRange//16 <= numTables < searchRange//8 # ensure searchRange//16 is largest power of two less than num_tables
|
||||
assert entrySelector == len(bin(searchRange))-7 # ensure entrySelector is the logarithm of searchRange//16
|
||||
|
||||
assert rangeShift == numTables*16-searchRange
|
||||
return OffsetTable(sfntVersion, numTables, searchRange, entrySelector, rangeShift)
|
||||
|
||||
class TableTag(Enum):
|
||||
@ -197,7 +128,6 @@ class TableTag(Enum):
|
||||
Prep = 'prep'
|
||||
Gasp = 'gasp' # :O
|
||||
|
||||
|
||||
# 5.4 (CFF)
|
||||
...
|
||||
|
||||
@ -208,7 +138,7 @@ class TableTag(Enum):
|
||||
# 5.6 (Optional)
|
||||
DSIG = 'DSIG'
|
||||
Hdmx = 'hdmx'
|
||||
Kern = 'Kern'
|
||||
Kern = 'kern'
|
||||
LTSH = 'LTSH'
|
||||
PCLT = 'PCLT'
|
||||
VDMX = 'VDMX'
|
||||
@ -254,119 +184,25 @@ def parse_table_directory_entry(f: BinaryIO) -> TableDirectoryEntry:
|
||||
length = read_u32(f)
|
||||
return TableDirectoryEntry(tableTag, checkSum, offset, length)
|
||||
|
||||
# TODO: This should just be a dict[TableTag, TableDirectoryEntry]
|
||||
@dataclass
|
||||
class FontDirectoryByTable:
|
||||
cmap: Optional[TableDirectoryEntry] = None
|
||||
head: Optional[TableDirectoryEntry] = None
|
||||
hhea: Optional[TableDirectoryEntry] = None
|
||||
hmtx: Optional[TableDirectoryEntry] = None
|
||||
maxp: Optional[TableDirectoryEntry] = None
|
||||
name: Optional[TableDirectoryEntry] = None
|
||||
os2 : Optional[TableDirectoryEntry] = None
|
||||
post: Optional[TableDirectoryEntry] = None
|
||||
|
||||
cvt : Optional[TableDirectoryEntry] = None
|
||||
fpgm: Optional[TableDirectoryEntry] = None
|
||||
glyf: Optional[TableDirectoryEntry] = None
|
||||
loca: Optional[TableDirectoryEntry] = None
|
||||
prep: Optional[TableDirectoryEntry] = None
|
||||
gasp: Optional[TableDirectoryEntry] = None
|
||||
|
||||
svg : Optional[TableDirectoryEntry] = None
|
||||
|
||||
DSIG: Optional[TableDirectoryEntry] = None
|
||||
hdmx: Optional[TableDirectoryEntry] = None
|
||||
Kern: Optional[TableDirectoryEntry] = None
|
||||
LTSH: Optional[TableDirectoryEntry] = None
|
||||
PCLT: Optional[TableDirectoryEntry] = None
|
||||
VDMX: Optional[TableDirectoryEntry] = None
|
||||
vhea: Optional[TableDirectoryEntry] = None
|
||||
vmtx: Optional[TableDirectoryEntry] = None
|
||||
COLR: Optional[TableDirectoryEntry] = None
|
||||
CPAL: Optional[TableDirectoryEntry] = None
|
||||
|
||||
BASE: Optional[TableDirectoryEntry] = None
|
||||
GDEF: Optional[TableDirectoryEntry] = None
|
||||
GPOS: Optional[TableDirectoryEntry] = None
|
||||
GSUB: Optional[TableDirectoryEntry] = None
|
||||
JSTF: Optional[TableDirectoryEntry] = None
|
||||
MATH: Optional[TableDirectoryEntry] = None
|
||||
|
||||
avar: Optional[TableDirectoryEntry] = None
|
||||
cvar: Optional[TableDirectoryEntry] = None
|
||||
fvar: Optional[TableDirectoryEntry] = None
|
||||
gvar: Optional[TableDirectoryEntry] = None
|
||||
HVAR: Optional[TableDirectoryEntry] = None
|
||||
MVAR: Optional[TableDirectoryEntry] = None
|
||||
STAT: Optional[TableDirectoryEntry] = None
|
||||
VVAR: Optional[TableDirectoryEntry] = None
|
||||
|
||||
@dataclass
|
||||
class FontDirectory:
|
||||
offset_table: OffsetTable
|
||||
table_directory: List[TableDirectoryEntry]
|
||||
|
||||
by_table: FontDirectoryByTable
|
||||
def get_entry(self, table_tag: TableTag) -> Optional[TableDirectoryEntry]:
|
||||
for entry in self.table_directory:
|
||||
if entry.tableTag == table_tag:
|
||||
return entry
|
||||
return None
|
||||
|
||||
def has_entry(self, table_tag: TableTag) -> bool:
|
||||
return self.get_entry(table_tag) is not None
|
||||
|
||||
def parse_font_directory(f: BinaryIO) -> FontDirectory:
|
||||
offset_table = parse_offset_table(f)
|
||||
table_directory_entries = [parse_table_directory_entry(f) for _ in range(offset_table.numTables)]
|
||||
|
||||
by_table = FontDirectoryByTable()
|
||||
|
||||
for table_directory_entry in table_directory_entries:
|
||||
match table_directory_entry.tableTag:
|
||||
case TableTag.Cmap: by_table.cmap = table_directory_entry
|
||||
case TableTag.Head: by_table.head = table_directory_entry
|
||||
case TableTag.Hhea: by_table.hhea = table_directory_entry
|
||||
case TableTag.Hmtx: by_table.hmtx = table_directory_entry
|
||||
case TableTag.Maxp: by_table.maxp = table_directory_entry
|
||||
case TableTag.Name: by_table.name = table_directory_entry
|
||||
case TableTag.OS2 : by_table.os2 = table_directory_entry
|
||||
case TableTag.Post: by_table.post = table_directory_entry
|
||||
|
||||
case TableTag.Cvt : by_table.cvt = table_directory_entry
|
||||
case TableTag.Fpgm: by_table.fpgm = table_directory_entry
|
||||
case TableTag.Glyf: by_table.glyf = table_directory_entry
|
||||
case TableTag.Loca: by_table.loca = table_directory_entry
|
||||
case TableTag.Prep: by_table.prep = table_directory_entry
|
||||
case TableTag.Gasp: by_table.gasp = table_directory_entry
|
||||
|
||||
case TableTag.Svg : by_table.svg = table_directory_entry
|
||||
|
||||
case TableTag.DSIG: by_table.DSIG = table_directory_entry
|
||||
case TableTag.Hdmx: by_table.hdmx = table_directory_entry
|
||||
case TableTag.Kern: by_table.Kern = table_directory_entry
|
||||
case TableTag.LTSH: by_table.LTSH = table_directory_entry
|
||||
case TableTag.PCLT: by_table.PCLT = table_directory_entry
|
||||
case TableTag.VDMX: by_table.VDMX = table_directory_entry
|
||||
case TableTag.Vhea: by_table.vhea = table_directory_entry
|
||||
case TableTag.Vmtx: by_table.vmtx = table_directory_entry
|
||||
case TableTag.COLR: by_table.COLR = table_directory_entry
|
||||
case TableTag.CPAL: by_table.CPAL = table_directory_entry
|
||||
|
||||
case TableTag.BASE: by_table.BASE = table_directory_entry
|
||||
case TableTag.GDEF: by_table.GDEF = table_directory_entry
|
||||
case TableTag.GPOS: by_table.GPOS = table_directory_entry
|
||||
case TableTag.GSUB: by_table.GSUB = table_directory_entry
|
||||
case TableTag.JSTF: by_table.JSTF = table_directory_entry
|
||||
case TableTag.MATH: by_table.MATH = table_directory_entry
|
||||
|
||||
case TableTag.Avar: by_table.avar = table_directory_entry
|
||||
case TableTag.Cvar: by_table.cvar = table_directory_entry
|
||||
case TableTag.Fvar: by_table.fvar = table_directory_entry
|
||||
case TableTag.Gvar: by_table.gvar = table_directory_entry
|
||||
case TableTag.HVAR: by_table.HVAR = table_directory_entry
|
||||
case TableTag.MVAR: by_table.MVAR = table_directory_entry
|
||||
case TableTag.STAT: by_table.STAT = table_directory_entry
|
||||
case TableTag.VVAR: by_table.VVAR = table_directory_entry
|
||||
|
||||
case _:
|
||||
assert False, f"Unimplemented: tableTag: {table_directory_entry.tableTag}"
|
||||
|
||||
return FontDirectory(offset_table, table_directory_entries, by_table)
|
||||
|
||||
return FontDirectory(offset_table, table_directory_entries)
|
||||
|
||||
@dataclass
|
||||
class CmapSubtable(Table, ABD):
|
||||
@ -390,7 +226,7 @@ def parse_sub_header(f: BinaryIO) -> SubHeader:
|
||||
@dataclass
|
||||
class CmapSubtable_Format_2(CmapSubtable):
|
||||
length: int
|
||||
language: int
|
||||
language: int # TODO: Make this an optional int
|
||||
subHeaderKeys: List[int] # 256 elements
|
||||
subHeaders: List[SubHeader]
|
||||
glyphIndexArray: List[int]
|
||||
@ -566,7 +402,9 @@ def parse_cmap_subtable(f: BinaryIO, platformID: PlatformID) -> CmapSubtable:
|
||||
entryCount = read_u16(f)
|
||||
glyphIdArray = [read_u16(f) for _ in range(entryCount)]
|
||||
|
||||
assert f.tell()-start_tell == length, (f.tell()-start_tell, length)
|
||||
assert length-4<f.tell()-start_tell<=length, (f.tell()-start_tell, length)
|
||||
f.seek(length-(f.tell()-start_tell))
|
||||
|
||||
return CmapSubtable_Format_6(format, length, language, firstCode, entryCount, glyphIdArray)
|
||||
case 12:
|
||||
assert read_u16(f) == 0, "Reserved"
|
||||
@ -643,6 +481,7 @@ def encoding_ID_cls_from_platform_ID(platformID: PlatformID) -> Callable[[int],
|
||||
def parse_encoding_ID(f: BinaryIO, platformID: PlatformID) -> EncodingID:
|
||||
return read_id(f, encoding_ID_cls_from_platform_ID(platformID))
|
||||
|
||||
# TODO: Finish this
|
||||
def parse_string_with_encoding_ID(f: BinaryIO, length: int, encodingID: EncodingID) -> str:
|
||||
bytes = f.read(length)
|
||||
match encodingID:
|
||||
@ -687,6 +526,7 @@ def parse_cmap_table(f: BinaryIO) -> CmapTable:
|
||||
|
||||
return CmapTable(version, numTables, encodingRecords)
|
||||
|
||||
HEAD_TABLE_MAGIC = 0x5F0F3CF5
|
||||
@dataclass
|
||||
class HeadTable(Table):
|
||||
majorVersion: int
|
||||
@ -715,7 +555,7 @@ def parse_head_table(f: BinaryIO) -> HeadTable:
|
||||
|
||||
fontRevision = read_fixed(f)
|
||||
checkSumAdjustment = read_u32(f)
|
||||
assert read_u32(f) == 0x5F0F3CF5, "magicNumber"
|
||||
assert read_u32(f) == HEAD_TABLE_MAGIC, "magicNumber"
|
||||
flags = read_u16(f)
|
||||
unitsPerEm = read_u16(f)
|
||||
created = read_long_datetime(f)
|
||||
@ -867,6 +707,123 @@ class LanguageID(ABE): pass
|
||||
|
||||
class MacintoshLanguageID(LanguageID, Enum):
|
||||
English = 0
|
||||
French = 1
|
||||
German = 2
|
||||
Italian = 3
|
||||
Dutch = 4
|
||||
Swedish = 5
|
||||
Spanish = 6
|
||||
Danish = 7
|
||||
Portuguese = 8
|
||||
Norwegian = 9
|
||||
Hebrew = 10
|
||||
Japanese = 11
|
||||
Arabic = 12
|
||||
Finnish = 13
|
||||
Greek = 14
|
||||
Icelandic = 15
|
||||
Maltese = 16
|
||||
Turkish = 17
|
||||
Croatian = 18
|
||||
Chinese_Traditional = 19
|
||||
Urdu = 20
|
||||
Hindi = 21
|
||||
Thai = 22
|
||||
Korean = 23
|
||||
Lithuanian = 24
|
||||
Polish = 25
|
||||
Hungarian = 26
|
||||
Estonian = 27
|
||||
Latvian = 28
|
||||
Sami = 29
|
||||
Faroese = 30
|
||||
FarsiPersian = 31
|
||||
Russian = 32
|
||||
Chinese_Simplified = 33
|
||||
Flemish = 34
|
||||
IrishGaelic = 35
|
||||
Albanian = 36
|
||||
Romanian = 37
|
||||
Czech = 38
|
||||
Slovak = 39
|
||||
Slovenian = 40
|
||||
Yiddish = 41
|
||||
Serbian = 42
|
||||
Macedonian = 43
|
||||
Bulgarian = 44
|
||||
Ukrainian = 45
|
||||
Byelorussian = 46
|
||||
Uzbek = 47
|
||||
Kazakh = 48
|
||||
Azerbaijani_CyrillicScript = 49
|
||||
Azerbaijani_ArabicScript = 50
|
||||
Armenian = 51
|
||||
Georgian = 52
|
||||
Moldavian = 53
|
||||
Kirghiz = 54
|
||||
Tajiki = 55
|
||||
Turkmen = 56
|
||||
Mongolian_MongolianScript = 57
|
||||
Mongolian_CyrillicScript = 58
|
||||
Pashto = 59
|
||||
Kurdish = 60
|
||||
Kashmiri = 61
|
||||
Sindhi = 62
|
||||
Tibetan = 63
|
||||
Nepali = 64
|
||||
Sanskrit = 65
|
||||
Marathi = 66
|
||||
Bengali = 67
|
||||
Assamese = 68
|
||||
Gujarati = 69
|
||||
Punjabi = 70
|
||||
Oriya = 71
|
||||
Malayalam = 72
|
||||
Kannada = 73
|
||||
Tamil = 74
|
||||
Telugu = 75
|
||||
Sinhalese = 76
|
||||
Burmese = 77
|
||||
Khmer = 78
|
||||
Lao = 79
|
||||
Vietnamese = 80
|
||||
Indonesian = 81
|
||||
Tagalong = 82
|
||||
Malay_RomanScript = 83
|
||||
Malay_ArabicScript = 84
|
||||
Amharic = 85
|
||||
Tigrinya = 86
|
||||
Galla = 87
|
||||
Somali = 88
|
||||
Swahili = 89
|
||||
Rundi = 91
|
||||
KinyarwandaRuanda = 90
|
||||
NyanjaChewa = 92
|
||||
Malagasy = 93
|
||||
Esperanto = 94
|
||||
Welsh = 128
|
||||
Basque = 129
|
||||
Catalan = 130
|
||||
Latin = 131
|
||||
Quenchua = 132
|
||||
Guarani = 133
|
||||
Aymara = 134
|
||||
Tatar = 135
|
||||
Uighur = 136
|
||||
Dzongkha = 137
|
||||
Javanese_RomanScript = 138
|
||||
Sundanese_RomanScript = 139
|
||||
Galician = 140
|
||||
Afrikaans = 141
|
||||
Breton = 142
|
||||
Inuktitut = 143
|
||||
ScottishGaelic = 144
|
||||
ManxGaelic = 145
|
||||
IrishGaelic_WithDotAbove = 146
|
||||
Tongan = 147
|
||||
Greek_Polytonic = 148
|
||||
Greenlandic = 149
|
||||
Azerbaijani_RomanScript = 150
|
||||
|
||||
def __str__(self) -> str: return self._name_
|
||||
|
||||
@ -1175,7 +1132,7 @@ def parse_name_table(f: BinaryIO, length: int) -> NameTable:
|
||||
case _:
|
||||
assert False, f"Unimplemented: format: {format}"
|
||||
|
||||
assert False
|
||||
assert False, format
|
||||
|
||||
@dataclass
|
||||
class VendorTag:
|
||||
@ -1218,6 +1175,10 @@ class OS2Table(Table, ABD):
|
||||
usWinAscent: int
|
||||
usWinDescent: int
|
||||
|
||||
def __post_init__(self):
|
||||
if self.fsSelection & 0x40: assert self.fsSelection & (0b100001) == 0 # bit 6 indicates that the font is regular, and therefore cannot be bold or italic.
|
||||
assert self.fsSelection & 0xfc00 == 0, "reserved"
|
||||
|
||||
@dataclass
|
||||
class OS2Table_Ver_0(OS2Table): pass
|
||||
|
||||
@ -1263,9 +1224,6 @@ def parse_OS2_table(f: BinaryIO) -> OS2Table:
|
||||
sTypoAscender, sTypoDescender, sTypoLineGap = read_i16(f), read_i16(f), read_i16(f)
|
||||
usWinAscent, usWinDescent = read_u16(f), read_u16(f)
|
||||
|
||||
if fsSelection & 0x40: assert fsSelection & (0b100001) == 0 # bit 6 indicates that the font is regular, and therefore cannot be bold or italic.
|
||||
assert fsSelection & 0xfc00 == 0, "reserved"
|
||||
|
||||
if version == 0:
|
||||
return OS2Table_Ver_0(version, xAvgCharWidth, usWeightClass, usWidthClass, fsType, ySubscriptXSize, ySubscriptYSize, ySubscriptXOffset, ySubscriptYOffset, ySuperscriptXSize, ySuperscriptYSize, ySuperscriptXOffset, ySuperscriptYOffset, yStrikeoutSize, yStrikeoutPosition, sFamilyClass, panose, ulUnicodeRange1, ulUnicodeRange2, ulUnicodeRange3, ulUnicodeRange4, achVendID, fsSelection, usFirstCharIndex, usLastCharIndex, sTypoAscender, sTypoDescender, sTypoLineGap, usWinAscent, usWinDescent)
|
||||
|
||||
@ -1346,6 +1304,8 @@ def parse_post_table(f: BinaryIO, length: int) -> PostTable:
|
||||
while length - (f.tell() - start_tell) > 0: # kinda dangerous, but I think it's the only way to make it work? number of strings is not necessarily equal to numGlyphs. I think that you could probably figure out the number of strings by filtering elements in the glyphNameIndex array
|
||||
names.append(read_pascal_string(f))
|
||||
|
||||
assert f.tell()-start_tell == length
|
||||
|
||||
return PostTable_Ver_2_0(version, italicAngle, underlinePosition, underlineThickness, isFixedPitch, minMemType42, maxMemType42, minMemType1, maxMemType1, numGlyphs, glyphNameIndex, names)
|
||||
case 3.0:
|
||||
return PostTable_Ver_3_0(version, italicAngle, underlinePosition, underlineThickness, isFixedPitch, minMemType42, maxMemType42, minMemType1, maxMemType1)
|
||||
@ -1414,6 +1374,9 @@ class DSIGTable(Table, ABD):
|
||||
flags: int # It's u16 but only bits 0-7 are documented?
|
||||
signatureRecords: List[SignatureRecord] # there's a typo in the ISO documentation.
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.flags & 0xfe == 0, "Reserved"
|
||||
|
||||
@dataclass
|
||||
class DSIGTable_Ver_1(DSIGTable): pass
|
||||
|
||||
@ -1425,7 +1388,6 @@ def parse_DSIG_table(f: BinaryIO) -> DSIGTable:
|
||||
|
||||
numSignatures = read_u16(f)
|
||||
flags = read_u16(f)
|
||||
assert flags & 0xfe == 0, "Reserved"
|
||||
signatureRecords = [parse_signature_record(f, start_tell) for _ in range(numSignatures)]
|
||||
|
||||
if version == 1:
|
||||
@ -1678,14 +1640,18 @@ class CCXXTag(ABE):
|
||||
self.num = int(tag[2:])
|
||||
if not (self.__range__[0] <= self.num <= self.__range__[1]): raise ValueError(f"Invalid {self.__class__.__name__}: {self.num}. Expected number between {self.__range__[0]} and {self.__range__[1]}.")
|
||||
|
||||
@classmethod
|
||||
def from_num(cls, num: int) -> Self:
|
||||
assert 0 <= num <= 99, f"Invalid num: {num}. Must be two digits"
|
||||
return cls(f"{cls.__CC__}{num:0>2}") # don't need to check the range because the __init__ will check
|
||||
# @classmethod
|
||||
# def from_num(cls, num: int) -> Self:
|
||||
# assert 0 <= num <= 99, f"Invalid num: {num}. Must be two digits"
|
||||
# return cls(f"{cls.__CC__}{num:0>2}") # don't need to check the range because the __init__ will check
|
||||
|
||||
def __str__(self) -> str:
|
||||
return f"'{self.__CC__}{self.num:0>2}'"
|
||||
|
||||
@property
|
||||
def name(self) -> str:
|
||||
return str(self)
|
||||
|
||||
class ScriptTag(Enum):
|
||||
Adlam = 'adlm'
|
||||
Ahom = 'ahom'
|
||||
@ -2475,8 +2441,12 @@ class ValidLangSysTag(LangSysTag, Enum):
|
||||
|
||||
def __str__(self) -> str: return self._name_
|
||||
|
||||
@dataclass
|
||||
class InvalidLangSysTag(LangSysTag):
|
||||
tag: str
|
||||
|
||||
def parse_lang_sys_tag(f: BinaryIO) -> LangSysTag:
|
||||
return read_tag_from_tags(f, ValidLangSysTag, MS_VOLT_Tag, umbrellaTagCls=LangSysTag)
|
||||
return read_tag_from_tags(f, ValidLangSysTag, InvalidLangSysTag, MS_VOLT_Tag, umbrellaTagCls=LangSysTag)
|
||||
|
||||
@dataclass
|
||||
class LangSysRecord:
|
||||
@ -2682,8 +2652,18 @@ class MS_VOLT_Tag(CCXXTag, LangSysTag, FeatureTag):
|
||||
__CC__ = 'zz'
|
||||
__range__ = (0, 99) # I don't know if zz00 is valid or not, but I am letting it be, so that it can be caught, because zzXX is not a valid tag for anything
|
||||
|
||||
def is_vendor_feature_tag(tag: str) -> bool:
|
||||
return all(map(is_upper, tag))
|
||||
|
||||
@dataclass
|
||||
class VendorFeatureTag(FeatureTag):
|
||||
tag: str
|
||||
|
||||
def __post_init__(self):
|
||||
if not is_vendor_feature_tag(self.tag): raise ValueError
|
||||
|
||||
def parse_feature_tag(f: BinaryIO) -> FeatureTag:
|
||||
return read_tag_from_tags(f, SimpleFeatureTag, CvXXFeatureTag, SsXXFeatureTag, MS_VOLT_Tag, umbrellaTagCls=FeatureTag)
|
||||
return read_tag_with_conditions(f, (always, SimpleFeatureTag), (always, CvXXFeatureTag), (always, SsXXFeatureTag), (is_vendor_feature_tag, VendorFeatureTag), (lambda s: is_CCXX('zz', s), MS_VOLT_Tag), umbrellaTagCls=FeatureTag)
|
||||
|
||||
@dataclass
|
||||
class FeatureParamsTable(Table, ABD): pass
|
||||
@ -2828,7 +2808,7 @@ class LookupFlag: # TODO: Do this like the other flags
|
||||
def parse_lookup_flag(f: BinaryIO) -> LookupFlag:
|
||||
lookupFlag = read_u16(f)
|
||||
rightToLeft, ignoreBaseGlyphs, ignoreLigatures, ignoreMarks, useMarkFilteringSet = [bool(lookupFlag&(1<<i)) for i in range(5)]
|
||||
assert lookupFlag & 0x00e0 == 0, "Reserved"
|
||||
assert lookupFlag & 0x00e0 == 0, "Reserved" # TODO: Once you do this like the other flags, put this in the __post_init__
|
||||
markAttachmentType = (lookupFlag & 0xff00) >> 8
|
||||
|
||||
return LookupFlag(rightToLeft, ignoreBaseGlyphs, ignoreLigatures, ignoreMarks, useMarkFilteringSet, markAttachmentType)
|
||||
@ -3091,9 +3071,11 @@ class ValueFormatFlags:
|
||||
def x_advance_device(self) -> bool: return (self.bytes & 0x0040)!=0
|
||||
def y_advance_device(self) -> bool: return (self.bytes & 0x0080)!=0
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.bytes & 0xFF00 == 0, "Reserved"
|
||||
|
||||
def parse_value_format(f: BinaryIO) -> ValueFormatFlags:
|
||||
valueFormat = read_u16(f)
|
||||
assert valueFormat & 0xFF00 == 0, "Reserved"
|
||||
|
||||
return ValueFormatFlags(valueFormat)
|
||||
|
||||
@ -3104,12 +3086,18 @@ class DeviceTable(Table):
|
||||
deltaFormat: int
|
||||
deltaValue: List[int]
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.deltaFormat & 0x7ffc == 0, "Reserved"
|
||||
|
||||
@dataclass
|
||||
class VariationIndexTable(Table):
|
||||
deltaSetOuterIndex: int
|
||||
deltaSetInnerIndex: int
|
||||
deltaFormat: int
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.deltaFormat == 0x8000
|
||||
|
||||
DeviceTable_ = DeviceTable | VariationIndexTable
|
||||
|
||||
def parse_device_table(f: BinaryIO) -> DeviceTable_:
|
||||
@ -3117,7 +3105,6 @@ def parse_device_table(f: BinaryIO) -> DeviceTable_:
|
||||
second = read_u16(f)
|
||||
|
||||
deltaFormat = read_u16(f)
|
||||
assert deltaFormat & 0x7ffc == 0, "Reserved"
|
||||
assert deltaFormat in [1, 2, 3, 0x8000], f"Invalid deltaFormat: {deltaFormat}"
|
||||
|
||||
match deltaFormat:
|
||||
@ -3476,10 +3463,10 @@ def parse_value_record(f: BinaryIO, start_tell: int, valueFormat: ValueFormatFla
|
||||
xAdvance = read_i16(f) if valueFormat.x_advance() else None
|
||||
yAdvance = read_i16(f) if valueFormat.y_advance() else None
|
||||
|
||||
xPlaDeviceOffset = read_u16(f) if valueFormat.x_placement_device() else None
|
||||
yPlaDeviceOffset = read_u16(f) if valueFormat.y_placement_device() else None
|
||||
xAdvDeviceOffset = read_u16(f) if valueFormat.x_advance_device() else None
|
||||
yAdvDeviceOffset = read_u16(f) if valueFormat.y_advance_device() else None
|
||||
xPlaDeviceOffset = read_u16(f) if valueFormat.x_placement_device() else 0
|
||||
yPlaDeviceOffset = read_u16(f) if valueFormat.y_placement_device() else 0
|
||||
xAdvDeviceOffset = read_u16(f) if valueFormat.x_advance_device() else 0
|
||||
yAdvDeviceOffset = read_u16(f) if valueFormat.y_advance_device() else 0
|
||||
with SaveTell(f):
|
||||
xPlaDevice = parse_at_optional_offset(f, start_tell, xPlaDeviceOffset, parse_device_table)
|
||||
yPlaDevice = parse_at_optional_offset(f, start_tell, yPlaDeviceOffset, parse_device_table)
|
||||
@ -4222,7 +4209,7 @@ def parse_GPOS_table(f: BinaryIO) -> GPOSTable:
|
||||
|
||||
featureVariationsOffset = read_u32(f)
|
||||
with SaveTell(f):
|
||||
featureVariations = parse_at_optional_offset(f, start_tell, featureVariationsOffset, lambda f: parse_feature_variations_table(f, featureList))
|
||||
featureVariations = parse_at_offset(f, start_tell, featureVariationsOffset, lambda f: parse_feature_variations_table(f, featureList))
|
||||
|
||||
if minorVersion == 1:
|
||||
return GPOSTable_Ver_1_1(majorVersion, minorVersion, scriptList, featureList, lookupList, featureVariations)
|
||||
@ -4616,7 +4603,7 @@ def parse_GSUB_lookup_subtable(f: BinaryIO, lookupType: GSUBLookupType) -> GSUBL
|
||||
ligatureSetOffsets = [read_u16(f) for _ in range(ligatureSetCount)]
|
||||
with SaveTell(f):
|
||||
coverage = parse_at_offset(f, start_tell, coverageOffset, parse_coverage_table)
|
||||
ligatureSets = parse_at_offsets(f, start_tell, ligatureSetOffsets, lambda f: parse_set_table(f, parse_ligature_table))
|
||||
ligatureSets = parse_at_offsets(f, start_tell, ligatureSetOffsets, parse_ligature_set_table)
|
||||
|
||||
return LigatureSubstSubtable_Format_1(substFormat, coverage, ligatureSetCount, ligatureSets)
|
||||
case _:
|
||||
@ -4764,7 +4751,7 @@ def parse_GSUB_lookup_subtable(f: BinaryIO, lookupType: GSUBLookupType) -> GSUBL
|
||||
assert False, lookupType
|
||||
|
||||
@dataclass
|
||||
class GSUBTable(Table, ABD):
|
||||
class GSUBTable(Table, ABD): # TODO: Maybe make a generic class for this, because this is the same as GPOSTable
|
||||
majorVersion: int
|
||||
minorVersion: int
|
||||
# See: https://github.com/MicrosoftDocs/typography-issues/issues/79
|
||||
@ -4869,12 +4856,15 @@ class SimpleGlyphFlag:
|
||||
def y_is_same_or_positive_short(self) -> bool: return (self.byte & 0x20)!=0
|
||||
def overlap_simple(self) -> bool: return (self.byte & 0x40)!=0
|
||||
|
||||
def __str__(self) -> str:
|
||||
return '0x'+hex(self.byte)[2:].rjust(2, '0')
|
||||
def __repr__(self) -> str:
|
||||
return repr_hex(self.byte, 2)
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.byte & 0x80 == 0, self
|
||||
|
||||
def parse_simple_glyph_flag(f: BinaryIO) -> SimpleGlyphFlag:
|
||||
flags = read_u8(f)
|
||||
assert flags & 0x80 == 0, "reserved"
|
||||
|
||||
return SimpleGlyphFlag(flags)
|
||||
|
||||
@dataclass
|
||||
@ -4887,27 +4877,30 @@ class SimpleGlyph(Glyph):
|
||||
|
||||
@dataclass
|
||||
class CompoundGlyphFlag:
|
||||
byte: int
|
||||
bytes: int
|
||||
|
||||
def arg_1_and_2_are_words(self) -> bool: return (self.byte & 0x0001)!=0
|
||||
def args_are_xy_values(self) -> bool: return (self.byte & 0x0002)!=0
|
||||
def round_xy_to_grid(self) -> bool: return (self.byte & 0x0004)!=0
|
||||
def we_have_a_scale(self) -> bool: return (self.byte & 0x0008)!=0
|
||||
def more_components(self) -> bool: return (self.byte & 0x0020)!=0
|
||||
def we_have_an_x_and_y_scale(self) -> bool: return (self.byte & 0x0040)!=0
|
||||
def we_have_a_two_by_two(self) -> bool: return (self.byte & 0x0080)!=0
|
||||
def we_have_instructions(self) -> bool: return (self.byte & 0x0100)!=0
|
||||
def use_my_metrics(self) -> bool: return (self.byte & 0x0200)!=0
|
||||
def overlap_compound(self) -> bool: return (self.byte & 0x0400)!=0
|
||||
def scaled_component_offset(self) -> bool: return (self.byte & 0x0800)!=0
|
||||
def unscaled_component_offset(self) -> bool: return (self.byte & 0x1000)!=0
|
||||
def arg_1_and_2_are_words(self) -> bool: return (self.bytes & 0x0001)!=0
|
||||
def args_are_xy_values(self) -> bool: return (self.bytes & 0x0002)!=0
|
||||
def round_xy_to_grid(self) -> bool: return (self.bytes & 0x0004)!=0
|
||||
def we_have_a_scale(self) -> bool: return (self.bytes & 0x0008)!=0
|
||||
def more_components(self) -> bool: return (self.bytes & 0x0020)!=0
|
||||
def we_have_an_x_and_y_scale(self) -> bool: return (self.bytes & 0x0040)!=0
|
||||
def we_have_a_two_by_two(self) -> bool: return (self.bytes & 0x0080)!=0
|
||||
def we_have_instructions(self) -> bool: return (self.bytes & 0x0100)!=0
|
||||
def use_my_metrics(self) -> bool: return (self.bytes & 0x0200)!=0
|
||||
def overlap_compound(self) -> bool: return (self.bytes & 0x0400)!=0
|
||||
def scaled_component_offset(self) -> bool: return (self.bytes & 0x0800)!=0
|
||||
def unscaled_component_offset(self) -> bool: return (self.bytes & 0x1000)!=0
|
||||
|
||||
def __repr__(self) -> str:
|
||||
return '0x'+hex(self.byte)[2:].rjust(4, '0')
|
||||
return repr_hex(self.bytes, 4)
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.bytes & 0xE010 == 0, "Reserved"
|
||||
|
||||
def parse_compound_glyph_flag(f: BinaryIO) -> CompoundGlyphFlag:
|
||||
flags = read_u16(f)
|
||||
assert flags & 0xE010 == 0, "reserved"
|
||||
|
||||
return CompoundGlyphFlag(flags)
|
||||
|
||||
@dataclass
|
||||
@ -4977,7 +4970,6 @@ def parse_simple_glyph_flags(f: BinaryIO, total_points: int) -> Tuple[List[Simpl
|
||||
Returns the logical list (i.e., expanding repeating flags), as well as the total xCoordinates and yCoordinates lengths
|
||||
"""
|
||||
# Mostly just ported from https://github.com/RazrFalcon/ttf-parser/blob/2192d3e496201ab2ff39d5437f88d62e70083f0e/src/tables/glyf.rs#L521
|
||||
|
||||
x_len = 0
|
||||
y_len = 0
|
||||
|
||||
@ -5033,8 +5025,9 @@ def parse_glyph(f: BinaryIO, length: int) -> Glyph:
|
||||
case False, False: yDelta = read_i16(yCoordinates)
|
||||
|
||||
coordinates.append((coordinates[-1][0]+xDelta, coordinates[-1][1]+yDelta))
|
||||
|
||||
# TODO: Do I need to read the padding bytes?
|
||||
assert length-4<f.tell()-start_tell<=length # there might be padding bytes
|
||||
assert is_at_end(xCoordinates) and is_at_end(yCoordinates), (len_to_end(xCoordinates), len_to_end(yCoordinates))
|
||||
return SimpleGlyph(numberOfContours, xMin, yMin, xMax, yMax, endPtsOfContours, instructionLength, instructions, flags, coordinates[1:])
|
||||
else:
|
||||
components = [parse_component(f)]
|
||||
@ -5091,12 +5084,14 @@ class GaspRange:
|
||||
rangeMaxPPEM: int
|
||||
rangeGaspBehavior: int
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.rangeGaspBehavior & 0xFFF0 == 0, "Reserved"
|
||||
|
||||
def parse_gasp_range(f: BinaryIO, version: int) -> GaspRange:
|
||||
rangeMaxPPEM = read_u16(f)
|
||||
rangeGaspBehavior = read_u16(f)
|
||||
|
||||
if version == 0: assert rangeGaspBehavior & 0x000C == 0, "Only supported in version 1"
|
||||
assert rangeGaspBehavior & 0xFFF0 == 0, "Reserved"
|
||||
|
||||
return GaspRange(rangeMaxPPEM, rangeGaspBehavior)
|
||||
|
||||
@ -5120,7 +5115,7 @@ class TrueTypeOutlines:
|
||||
control_value_table: Optional[CvtTable]
|
||||
font_program: Optional[FpgmTable]
|
||||
glyph_data: GlyfTable
|
||||
index_to_location: LocaTable
|
||||
index_to_location: LocaTable # Parsing only
|
||||
CV_program: Optional[PrepTable]
|
||||
grid_fitting_and_scan_conversion: Optional[GaspTable]
|
||||
|
||||
@ -5152,9 +5147,11 @@ class TupleIndex:
|
||||
|
||||
def tuple_index(self) -> int: return self.bytes & 0x0fff
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.bytes & 0x1000 == 0, "Reserved"
|
||||
|
||||
def parse_tuple_index(f: BinaryIO) -> TupleIndex:
|
||||
tupleIndex = read_u16(f)
|
||||
assert tupleIndex & 0x1000 == 0, "Reserved"
|
||||
|
||||
return TupleIndex(tupleIndex)
|
||||
|
||||
@ -5269,7 +5266,7 @@ def parse_cvar_per_tuple_variation_data(f: BinaryIO, tupleVariationHeader: Tuple
|
||||
assert f.tell()-start_tell == tupleVariationHeader.variationDataSize, (f.tell()-start_tell, tupleVariationHeader)
|
||||
return CvarPerTupleVariationData(private_point_numbers, CVT_value_deltas)
|
||||
|
||||
def parse_tuple_variation_count(f: BinaryIO) -> Tuple[bool, int]:
|
||||
def parse_tuple_variation_count(f: BinaryIO) -> Tuple[bool, int]: # TODO: Maybe do this like the other flags?
|
||||
SHARED_POINT_NUMBERS = 0x8000
|
||||
COUNT_MASK = 0x0fff
|
||||
|
||||
@ -5498,6 +5495,9 @@ class VariationAxisRecord:
|
||||
flags: int
|
||||
axisNameID: int
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.flags & 0xfffe == 0, "Reserved"
|
||||
|
||||
def parse_variation_axis_record(f: BinaryIO, axisSize: int) -> VariationAxisRecord:
|
||||
start_tell = f.tell()
|
||||
|
||||
@ -5506,7 +5506,6 @@ def parse_variation_axis_record(f: BinaryIO, axisSize: int) -> VariationAxisReco
|
||||
defaultValue = read_fixed(f)
|
||||
maxValue = read_fixed(f)
|
||||
flags = read_u16(f)
|
||||
assert flags & 0xfffe == 0, "Reserved"
|
||||
axisNameID = read_u16(f)
|
||||
|
||||
assert f.tell() - start_tell == axisSize, (f.tell() - start_tell, axisSize)
|
||||
@ -5608,6 +5607,9 @@ class GvarTable(Table, ABD):
|
||||
flags: int
|
||||
glyphVariationData: List[Optional[GlyphVariationDataTable]]
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.flags & 0xfffe == 0, "Reserved?" # Maybe not?
|
||||
|
||||
@dataclass
|
||||
class GvarTable_Ver_1_0(GvarTable): pass
|
||||
|
||||
@ -5623,8 +5625,7 @@ def parse_gvar_table(f: BinaryIO, glyph_data: GlyfTable) -> GvarTable:
|
||||
sharedTupleCount = read_u16(f)
|
||||
sharedTuplesOffset = read_u32(f)
|
||||
glyphCount = read_u16(f)
|
||||
flags = read_u16(f)
|
||||
assert flags & 0xfffe == 0, f"Reserved?" # Maybe not?
|
||||
flags = read_u16(f) # TODO: Maybe make a method parse_gvar_flags
|
||||
long = (flags & 0x0001) != 0
|
||||
glyphVariationDataArrayOffset = read_u32(f)
|
||||
glyphVariationDataOffsets = [read_u16(f)*2 for _ in range(glyphCount+1)] if not long else [read_u32(f) for _ in range(glyphCount+1)] # TODO: Some of these point to the same GlyphVariationDataTables. Maybe don't reparse each one if it's the same?
|
||||
@ -5652,12 +5653,14 @@ class DeltaSetIndexMapTable(Table):
|
||||
mapCount: int
|
||||
mapData: List[Tuple[int, int]] # (outerIndex, innerIndex)
|
||||
|
||||
def __post_init__(self):
|
||||
assert self.entryFormat & 0xffc0 == 0, "Reserved"
|
||||
|
||||
def parse_delta_set_index_map_table(f: BinaryIO) -> DeltaSetIndexMapTable:
|
||||
INNER_INDEX_BIT_COUNT_MASK = 0x000f
|
||||
MAP_ENTRY_SIZE_MASK = 0x0030
|
||||
|
||||
entryFormat = read_u16(f)
|
||||
assert entryFormat & 0xffc0 == 0, "Reserved"
|
||||
entryFormat = read_u16(f) # TODO: Maybe make all flags like this? If something is reserved, it could just be future things
|
||||
map_entry_size = ((entryFormat & MAP_ENTRY_SIZE_MASK) >> 4) + 1
|
||||
|
||||
mapCount = read_u16(f)
|
||||
@ -5917,78 +5920,80 @@ def possibly_parse_at_table_directory_entry_with_length(f: BinaryIO, table: Opti
|
||||
def parse_open_font_file(f: BinaryIO) -> OpenFontFile:
|
||||
font_directory = parse_font_directory(f)
|
||||
|
||||
font_header = parse_at_table_directory_entry(f, font_directory.by_table.head, parse_head_table)
|
||||
horizontal_header = parse_at_table_directory_entry(f, font_directory.by_table.hhea, parse_hhea_table)
|
||||
maximum_profile = parse_at_table_directory_entry(f, font_directory.by_table.maxp, parse_maxp_table)
|
||||
horizontal_metrics = parse_at_table_directory_entry(f, font_directory.by_table.hmtx, lambda f: parse_hmtx_table(f, horizontal_header.numberOfHMetrics, maximum_profile.numGlyphs))
|
||||
naming_table = parse_at_table_directory_entry_with_length(f, font_directory.by_table.name, parse_name_table)
|
||||
OS2_and_Windows_specific_metrics = parse_at_table_directory_entry(f, font_directory.by_table.os2, parse_OS2_table)
|
||||
character_to_glyph_mapping = parse_at_table_directory_entry(f, font_directory.by_table.cmap, parse_cmap_table)
|
||||
PostScript_information = parse_at_table_directory_entry_with_length(f, font_directory.by_table.post, parse_post_table)
|
||||
font_header = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Head), parse_head_table)
|
||||
horizontal_header = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Hhea), parse_hhea_table)
|
||||
maximum_profile = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Maxp), parse_maxp_table)
|
||||
horizontal_metrics = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Hmtx), lambda f: parse_hmtx_table(f, horizontal_header.numberOfHMetrics, maximum_profile.numGlyphs))
|
||||
naming_table = parse_at_table_directory_entry_with_length(f, font_directory.get_entry(TableTag.Name), parse_name_table)
|
||||
OS2_and_Windows_specific_metrics = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.OS2), parse_OS2_table)
|
||||
character_to_glyph_mapping = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Cmap), parse_cmap_table)
|
||||
PostScript_information = parse_at_table_directory_entry_with_length(f, font_directory.get_entry(TableTag.Post), parse_post_table)
|
||||
|
||||
# optional
|
||||
digital_signature = possibly_parse_at_table_directory_entry(f, font_directory.by_table.DSIG, parse_DSIG_table)
|
||||
horizontal_device_metrics = possibly_parse_at_table_directory_entry(f, font_directory.by_table.hdmx, lambda f: parse_hdmx_table(f, maximum_profile.numGlyphs))
|
||||
kerning = possibly_parse_at_table_directory_entry(f, font_directory.by_table.Kern, parse_Kern_table)
|
||||
linear_threshold_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.LTSH, parse_LTSH_table)
|
||||
PCL5_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.PCLT, parse_PCLT_table)
|
||||
vertical_device_metrics = possibly_parse_at_table_directory_entry(f, font_directory.by_table.VDMX, parse_VDMX_table)
|
||||
vertical_metrics_header = possibly_parse_at_table_directory_entry(f, font_directory.by_table.vhea, parse_vhea_table)
|
||||
if font_directory.by_table.vmtx:
|
||||
digital_signature = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.DSIG), parse_DSIG_table)
|
||||
horizontal_device_metrics = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Hdmx), lambda f: parse_hdmx_table(f, maximum_profile.numGlyphs))
|
||||
kerning = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Kern), parse_Kern_table)
|
||||
linear_threshold_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.LTSH), parse_LTSH_table)
|
||||
PCL5_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.PCLT), parse_PCLT_table)
|
||||
vertical_device_metrics = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.VDMX), parse_VDMX_table)
|
||||
vertical_metrics_header = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Vhea), parse_vhea_table)
|
||||
if font_directory.get_entry(TableTag.Vmtx):
|
||||
assert vertical_metrics_header, f"Must have vertical_metrics_header to parse vertical_metrics"
|
||||
vertical_metrics = parse_at_table_directory_entry(f, font_directory.by_table.vmtx, lambda f: parse_vmtx_table(f, vertical_metrics_header.numOfLongVerMetris, maximum_profile.numGlyphs))
|
||||
vertical_metrics = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Vmtx), lambda f: parse_vmtx_table(f, vertical_metrics_header.numOfLongVerMetris, maximum_profile.numGlyphs))
|
||||
else:
|
||||
vertical_metrics = None
|
||||
colour_table = possibly_parse_at_table_directory_entry(f, font_directory.by_table.COLR, parse_COLR_table)
|
||||
colour_palette_table = possibly_parse_at_table_directory_entry(f, font_directory.by_table.CPAL, parse_CPAL_table)
|
||||
colour_table = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.COLR), parse_COLR_table)
|
||||
colour_palette_table = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.CPAL), parse_CPAL_table)
|
||||
|
||||
# TTF / CFF
|
||||
match font_directory.offset_table.sfntVersion:
|
||||
case 0x00010000: # TTF
|
||||
index_to_location = parse_at_table_directory_entry(f, font_directory.by_table.loca, lambda f: parse_loca_table(f, font_header.indexToLocFormat, maximum_profile.numGlyphs))
|
||||
glyph_data = parse_at_table_directory_entry(f, font_directory.by_table.glyf, lambda f: parse_glyf_table(f, index_to_location.offsets))
|
||||
index_to_location = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Loca), lambda f: parse_loca_table(f, font_header.indexToLocFormat, maximum_profile.numGlyphs))
|
||||
glyph_data = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Glyf), lambda f: parse_glyf_table(f, index_to_location.offsets))
|
||||
|
||||
control_value_table = possibly_parse_at_table_directory_entry_with_length(f, font_directory.by_table.cvt, parse_cvt_table)
|
||||
font_program = possibly_parse_at_table_directory_entry_with_length(f, font_directory.by_table.fpgm, parse_fpgm_table)
|
||||
CV_program = possibly_parse_at_table_directory_entry_with_length(f, font_directory.by_table.prep, parse_prep_table)
|
||||
grid_fitting_and_scan_conversion = possibly_parse_at_table_directory_entry(f, font_directory.by_table.gasp, parse_gasp_table)
|
||||
control_value_table = possibly_parse_at_table_directory_entry_with_length(f, font_directory.get_entry(TableTag.Cvt), parse_cvt_table)
|
||||
font_program = possibly_parse_at_table_directory_entry_with_length(f, font_directory.get_entry(TableTag.Fpgm), parse_fpgm_table)
|
||||
CV_program = possibly_parse_at_table_directory_entry_with_length(f, font_directory.get_entry(TableTag.Prep), parse_prep_table)
|
||||
grid_fitting_and_scan_conversion = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Gasp), parse_gasp_table)
|
||||
|
||||
outlines = TrueTypeOutlines(control_value_table, font_program, glyph_data, index_to_location, CV_program, grid_fitting_and_scan_conversion)
|
||||
case _:
|
||||
assert False, f"Unimplemented: sfntVersion: {hex(font_directory.offset_table.sfntVersion)}"
|
||||
|
||||
# SVG
|
||||
scalar_vector_graphics = possibly_parse_at_table_directory_entry(f, font_directory.by_table.svg, parse_svg_table)
|
||||
scalar_vector_graphics = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Svg), parse_svg_table)
|
||||
|
||||
# Advanced
|
||||
baseline_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.BASE, parse_BASE_table)
|
||||
glyph_definition_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.GDEF, parse_GDEF_table)
|
||||
glyph_positioning_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.GPOS, parse_GPOS_table)
|
||||
glyph_substitution_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.GSUB, parse_GSUB_table)
|
||||
justification_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.JSTF, parse_JSTF_table)
|
||||
math_layout_data = possibly_parse_at_table_directory_entry(f, font_directory.by_table.MATH, parse_MATH_table)
|
||||
baseline_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.BASE), parse_BASE_table)
|
||||
glyph_definition_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.GDEF), parse_GDEF_table)
|
||||
glyph_positioning_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.GPOS), parse_GPOS_table)
|
||||
glyph_substitution_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.GSUB), parse_GSUB_table)
|
||||
justification_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.JSTF), parse_JSTF_table)
|
||||
math_layout_data = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.MATH), parse_MATH_table)
|
||||
|
||||
advanced_features = AdvancedFeatures(baseline_data, glyph_definition_data, glyph_positioning_data, glyph_substitution_data, justification_data, math_layout_data)
|
||||
|
||||
font_variations: Optional[FontVariations] = None
|
||||
if font_directory.by_table.fvar:
|
||||
font_variations_ = parse_at_table_directory_entry(f, font_directory.by_table.fvar, parse_fvar_table)
|
||||
style_attributes = parse_at_table_directory_entry(f, font_directory.by_table.STAT, parse_STAT_table)
|
||||
if font_directory.has_entry(TableTag.Fvar):
|
||||
font_variations_ = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Fvar), parse_fvar_table)
|
||||
style_attributes = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.STAT), parse_STAT_table)
|
||||
|
||||
axis_variations = possibly_parse_at_table_directory_entry(f, font_directory.by_table.avar, parse_avar_table)
|
||||
if font_directory.by_table.cvar:
|
||||
assert control_value_table, f"Must have control_value_table in order to have CVT_variations!"
|
||||
CVT_variations = parse_at_table_directory_entry(f, font_directory.by_table.cvar, lambda f: parse_cvar_table(f, font_variations_.axisCount, control_value_table))
|
||||
axis_variations = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Avar), parse_avar_table)
|
||||
if font_directory.has_entry(TableTag.Cvar):
|
||||
assert isinstance(outlines, TrueTypeOutlines)
|
||||
cvt = outlines.control_value_table
|
||||
assert cvt, f"Must have control_value_table in order to have CVT_variations!"
|
||||
CVT_variations = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Cvar), lambda f: parse_cvar_table(f, font_variations_.axisCount, cvt))
|
||||
else:
|
||||
CVT_variations = None
|
||||
if font_directory.by_table.gvar:
|
||||
if font_directory.has_entry(TableTag.Gvar):
|
||||
assert isinstance(outlines, TrueTypeOutlines)
|
||||
glyph_variations = parse_at_table_directory_entry(f, font_directory.by_table.gvar, lambda f: parse_gvar_table(f, outlines.glyph_data))
|
||||
glyph_variations = parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.Gvar), lambda f: parse_gvar_table(f, outlines.glyph_data))
|
||||
else:
|
||||
glyph_variations = None
|
||||
horizontal_metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.by_table.HVAR, parse_HVAR_table)
|
||||
metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.by_table.MVAR, parse_MVAR_table)
|
||||
vertical_metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.by_table.VVAR, parse_VVAR_table)
|
||||
horizontal_metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.HVAR), parse_HVAR_table)
|
||||
metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.MVAR), parse_MVAR_table)
|
||||
vertical_metrics_variations = possibly_parse_at_table_directory_entry(f, font_directory.get_entry(TableTag.VVAR), parse_VVAR_table)
|
||||
|
||||
font_variations = FontVariations(axis_variations, CVT_variations, font_variations_, glyph_variations, horizontal_metrics_variations, metrics_variations, style_attributes, vertical_metrics_variations)
|
||||
|
||||
|
||||
@ -1,4 +1,6 @@
|
||||
class ABD:
|
||||
from abc import ABC
|
||||
|
||||
class ABD(ABC):
|
||||
"""
|
||||
#### Abstract Base Dataclass
|
||||
|
||||
@ -9,11 +11,14 @@ class ABD:
|
||||
msg = f"Cannot instantiate an Abstract Base Dataclass: {self.__class__.__name__}"
|
||||
raise TypeError(msg)
|
||||
|
||||
# TODO: Make a subclass of EnumMeta to do this
|
||||
class ABE:
|
||||
"""
|
||||
#### Abstract Base Enum
|
||||
|
||||
This is for classes that will have an Enum subclass them
|
||||
This is for classes that will have an Enum subclass them.
|
||||
|
||||
Do not implement a __init__ method for the class directly inheriting from ABE
|
||||
"""
|
||||
def __init__(self, *args, **kwargs):
|
||||
if ABE in self.__class__.__bases__ or ABE == self:
|
||||
|
||||
@ -1,9 +1,23 @@
|
||||
from typing import BinaryIO
|
||||
from io import SEEK_END
|
||||
from typing import BinaryIO, Callable, Literal, TypeVar
|
||||
|
||||
ENDIANNESS = 'big'
|
||||
def len_to_end(f: BinaryIO) -> int:
|
||||
curr_tell = f.tell()
|
||||
f.seek(0, SEEK_END)
|
||||
end_tell = f.tell()
|
||||
f.seek(curr_tell)
|
||||
return end_tell - curr_tell
|
||||
|
||||
def read_int(f: BinaryIO, number: int, signed:bool=False) -> int: return int.from_bytes(f.read(number), ENDIANNESS, signed=signed)
|
||||
def write_int(f: BinaryIO, value: int, number: int, signed:bool=False) -> int: return f.write(value.to_bytes(number, ENDIANNESS, signed=signed))
|
||||
def is_at_end(f: BinaryIO) -> bool:
|
||||
return len_to_end(f) == 0
|
||||
|
||||
ENDIANNESS: Literal['little', 'big'] = 'big'
|
||||
|
||||
def read_int_from_bytes(s: bytes, *, signed:bool=False) -> int: return int.from_bytes(s, ENDIANNESS, signed=signed)
|
||||
def bytes_from_int(value: int, number: int, *, signed:bool=False) -> bytes: return value.to_bytes(number, ENDIANNESS, signed=signed)
|
||||
|
||||
def read_int(f: BinaryIO, number: int, *, signed:bool=False) -> int: return read_int_from_bytes(f.read(number), signed=signed)
|
||||
def write_int(f: BinaryIO, value: int, number: int, signed:bool=False) -> int: return f.write(bytes_from_int(value, number, signed=signed))
|
||||
|
||||
def read_u64(f: BinaryIO) -> int: return read_int(f, 8)
|
||||
def read_u32(f: BinaryIO) -> int: return read_int(f, 4)
|
||||
@ -11,7 +25,7 @@ def read_u24(f: BinaryIO) -> int: return read_int(f, 3)
|
||||
def read_u16(f: BinaryIO) -> int: return read_int(f, 2)
|
||||
def read_u8(f: BinaryIO) -> int: return read_int(f, 1)
|
||||
|
||||
def write_u16(f: BinaryIO, value: int) -> int: return f.write(value)
|
||||
def write_u16(f: BinaryIO, value: int) -> int: return write_int(f, value, 2)
|
||||
|
||||
def read_i32(f: BinaryIO) -> int: return read_int(f, 4, signed=True)
|
||||
def read_i16(f: BinaryIO) -> int: return read_int(f, 2, signed=True)
|
||||
@ -23,9 +37,12 @@ def read_ascii(f: BinaryIO, number: int) -> str: return f.read(number).decode(en
|
||||
def read_fixed_point(f: BinaryIO, preradix_bits: int, postradix_bits:int, *, signed:bool=True) -> float:
|
||||
assert (preradix_bits+postradix_bits)%8 == 0
|
||||
raw = read_int(f, (preradix_bits+postradix_bits)//8, signed=signed)
|
||||
return raw/(1<<(postradix_bits))
|
||||
return raw/(1<<postradix_bits)
|
||||
|
||||
def read_pascal_string(f: BinaryIO) -> str:
|
||||
string_size = read_int(f, 1)
|
||||
string_size = read_u8(f)
|
||||
pascal_string = read_ascii(f, string_size)
|
||||
return pascal_string
|
||||
|
||||
T = TypeVar('T')
|
||||
Parser = Callable[[BinaryIO], T]
|
||||
@ -1,9 +1,9 @@
|
||||
#!/usr/bin/env python3
|
||||
import os
|
||||
import sys
|
||||
assert len(sys.argv) == 2, "usage: python3 test.py <test>"
|
||||
assert len(sys.argv) >= 2, "usage: python3 test.py <test> [OPTIONS]"
|
||||
|
||||
from OpenFont import FontSpecificNameID, NameID, NameTable_Format_0, OpenFontFile, PredefinedNameID, TrueTypeOutlines, open_font_file, write_font_file
|
||||
from OpenFont import FontSpecificNameID, NameID, NameTable_Format_0, OpenFontFile, PredefinedNameID, TrueTypeOutlines, open_font_file
|
||||
|
||||
def search_names(font: OpenFontFile, nameID: NameID) -> str:
|
||||
assert isinstance(font.naming_table, NameTable_Format_0)
|
||||
@ -15,7 +15,7 @@ def search_names(font: OpenFontFile, nameID: NameID) -> str:
|
||||
assert False, f"Name not found: {nameID}"
|
||||
|
||||
|
||||
_, test = sys.argv
|
||||
_, test, *options = sys.argv
|
||||
|
||||
match test:
|
||||
case "names":
|
||||
@ -30,11 +30,6 @@ match test:
|
||||
axis_names = [search_names(font, FontSpecificNameID(axis.axisNameID)) for axis in font.font_variations.font_variations.axes]
|
||||
num_instances = font.font_variations.font_variations.instanceCount
|
||||
print(f"\tAxes: [{', '.join(axis_names)}] ({num_instances} instances)")
|
||||
case "rewrite":
|
||||
def test_font(font: OpenFontFile):
|
||||
PATH = "out.ttf"
|
||||
write_font_file(font, PATH)
|
||||
open_font_file(PATH)
|
||||
case _:
|
||||
assert False, f"Invalid test: '{test}'"
|
||||
|
||||
@ -44,13 +39,17 @@ if not os.path.exists(COMPLETED_PATH):
|
||||
with open(COMPLETED_PATH, "r") as f: completed = f.read().split('\n')
|
||||
|
||||
def do_font(file: str):
|
||||
file = file.strip()
|
||||
if file in completed: return
|
||||
try:
|
||||
font = open_font_file(file)
|
||||
test_font(font)
|
||||
except AssertionError as err:
|
||||
if '--raise' in options:
|
||||
err.add_note(f"Failed: {file}")
|
||||
raise err
|
||||
print(f"{file}{':' if '--no-colon' not in options else ''} {err}")
|
||||
return
|
||||
with open(COMPLETED_PATH, 'a') as f: f.write(file+'\n')
|
||||
completed.append(file)
|
||||
|
||||
@ -58,5 +57,3 @@ assert not sys.stdin.isatty(), f"Do not run this program directly, instead pipe
|
||||
for line in sys.stdin:
|
||||
file = line.rstrip('\n')
|
||||
do_font(file)
|
||||
|
||||
print("Done!")
|
||||
Loading…
Reference in New Issue
Block a user