vfbLib.parsers.numeric.PanoseParser

class vfbLib.parsers.numeric.PanoseParser

Bases: BaseParser

A parser that reads data as an array representing PANOSE values.

__init__()

Methods

`__init__`()
`parse`(stream, size[, master_count, ...])	Prepare the parsing of the stream, then call the specialized parser and return the decompiled VFB entry structure.
`parse_hex`(hexstr[, master_count])	Parse the data given in hex string format, e.g. "8c 8d 89 8b".
`read_double`()	Return a double-precision float from the stream.
`read_doubles`(num)	Return a tuple of num double-precision floats from the stream.
`read_float`()	Return a float from the stream.
`read_floats`(num)	Return a tuple of num floats from the stream.
`read_int16`()	Return a signed 16-bit integer from the stream.
`read_int32`()	Return a signed 32-bit integer from the stream.
`read_int8`()	Return a signed 8-bit integer from the stream.
`read_str`(size)	Return a string of the specified size from the current stream with the current encoding
`read_str_all`()	Return the remaining bytes of the current stream as a string with the current encoding.
`read_uint16`()	Return an unsigned 16-bit integer from the stream.
`read_uint32`()	Return an unsigned 32-bit integer from the stream.
`read_uint8`()	Return an unsigned 8-bit integer from the stream.
`read_value`([signed])	Return an encoded integer value from the stream.

Attributes

`encoding`
`master_count`
`stream`
`ttStemsH_count`
`ttStemsV_count`

parse(stream: BytesIO, size: int, master_count: int = 0, ttStemsV_count: int | None = None, ttStemsH_count: int | None = None) → Any

Prepare the parsing of the stream, then call the specialized parser and return the decompiled VFB entry structure.

The specialized parsing is done by calling the _parse method, which must be implemented for all entry parser sublasses.

Parameters:

stream (BytesIO) – The stream to read from.
size (int) – The number of bytes that will be read from the input stream and parsed.
master_count (int, optional) – The number of masters in the font. This is needed for some multiple-master-enabled VFB parsers. Defaults to 0.
ttStemsV_count (int | None, optional) – The number of TrueType hinting stems in the vertical hint direction, This is needed for some TrueType-hinting-related parsers. Defaults to None.
ttStemsH_count (int | None, optional) – The number of TrueType hinting stems in the horizontal hint direction, This is needed for some TrueType-hinting-related parsers. Defaults to None.

Raises:

AssertionError – If bytes remain in the stream after the parsing finished.

Returns:

The parsed structure. The type depends on the specific entry that is being parsed.

Return type:

Any

parse_hex(hexstr: str, master_count: int = 0)

Parse the data given in hex string format, e.g. “8c 8d 89 8b”. Used for testing.

Parameters:: hexstr (str) – The data

read_double() → float

Return a double-precision float from the stream.

Returns:: The float
Return type:: float

read_doubles(num) → tuple[float]

Return a tuple of num double-precision floats from the stream.

Parameters:: num (int) – The number of double-precision floats to read from the stream
Returns:: The tuple of floats
Return type:: tuple[float]

read_float() → float

Return a float from the stream.

Returns:: The float
Return type:: float

read_floats(num: int) → tuple[float]

Return a tuple of num floats from the stream.

Parameters:: num (int) – The number of floats to read from the stream
Returns:: The tuple of floats
Return type:: tuple[float]

read_int16() → int

Return a signed 16-bit integer from the stream.

Returns:: The integer
Return type:: int

read_int32() → int

Return a signed 32-bit integer from the stream.

Returns:: The integer
Return type:: int

read_int8() → int

Return a signed 8-bit integer from the stream.

Returns:: The integer
Return type:: int

read_str(size: int) → str

Return a string of the specified size from the current stream with the current encoding

Parameters:: size (int) – The size in bytes to be converted to a string
Returns:: The string
Return type:: str

read_str_all() → str

Return the remaining bytes of the current stream as a string with the current encoding. Null bytes and whitespace are stripped from the string.

Returns:: The string
Return type:: str

read_uint16() → int

Return an unsigned 16-bit integer from the stream.

Returns:: The integer
Return type:: int

read_uint32() → int

Return an unsigned 32-bit integer from the stream.

Returns:: The integer
Return type:: int

read_uint8() → int

Return an unsigned 8-bit integer from the stream.

Returns:: The integer
Return type:: int

read_value(signed: bool = True) → int

Return an encoded integer value from the stream.

Parameters:

signed (bool, optional) – Whether the value is interpreted as a signed value.
True. (Defaults to)

Returns:

The integer

Return type:

int