Package lepl :: Package bin :: Module matchers

Module matchers

Matchers specifically for binary data (most LEPL matchers can be used with binary data, but additional support is needed when the matching involves a literal comparison or generation of a binary result).

Classes

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_Constant
Support class for matching constant values.

Const
Match a given value, which is parsed as for BitString.from_int.

_Variable
Support class for matching a given number of bits.

_ByteArray
Support class for matching a given number of bytes.

BEnd
Convert a given number of bits (multiple of 8) to a big-endian number.

LEnd
Convert a given number of bits to a little-endian number.

_String
Support class for reading a string.

Functions

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BitStr(value)
Match or read a bit string (to read a value, give the number of bits).

source code

Byte(value=None)
Match or read a byte (if a value is given, it must match).

source code

ByteArray(value)
Match or read an array of bytes (to read a value, give the number of bytes).

source code

_bint(length)
Factory method for big-endian values.

source code

_lint(length)
Factory method for little-endian values.

source code

String(value, encoding=None, errors=STRICT)
Match or read a string (to read a value, give the number of bytes).

source code

Variables

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BInt16 = _bint(16)
Match or read an 16-bit big-endian integer (if a value is given, it must match).

LInt16 = _lint(16)
Match or read an 16-bit little-endian integer (if a value is given, it must match).

BInt32 = _bint(32)
Match or read an 32-bit big-endian integer (if a value is given, it must match).

LInt32 = _lint(32)
Match or read an 32-bit little-endian integer (if a value is given, it must match).

BInt64 = _bint(64)
Match or read an 64-bit big-endian integer (if a value is given, it must match).

LInt64 = _lint(64)
Match or read an 64-bit little-endian integer (if a value is given, it must match).