bitty/bytes

Byte-level parsers for reading, skipping, peeking, and matching raw bytes. These parsers work at any bit position — when unaligned, bytes are extracted bit-by-bit. When byte-aligned, zero-copy slicing is used. After bit-level parsing with bitty/bits, call bitty.align() before resuming byte-aligned operations.

Values

peek

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pub fn peek(bytes count: Int) -> bitty.Parser(BitArray)

Look ahead at the next count bytes without consuming them.

rest

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pub fn rest() -> bitty.Parser(BitArray)

Consume all remaining input as a BitArray. Works at any bit position — the result may be non-byte-aligned.

skip

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pub fn skip(bytes count: Int) -> bitty.Parser(Nil)

Advance the parser position by count bytes, discarding the data.

tag

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pub fn tag(expected: BitArray) -> bitty.Parser(Nil)

Match an exact byte sequence at the current position and consume it. Fails if the bytes don’t match. Useful for magic numbers and fixed headers.

take

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pub fn take(bytes count: Int) -> bitty.Parser(BitArray)

Parse exactly count bytes as a BitArray. When byte-aligned, returns a zero-copy slice.