Module encoding 

DNA nucleotide encoding

This module implements the 2-bit encoding scheme for DNA nucleotides, matching the C++ SSHash implementation exactly.

Default encoding (SSHash custom):

• A (65/97) -> 00
• C (67/99) -> 01
• G (71/103) -> 11
• T (84/116) -> 10

Enums

EncodingError

Error type for encoding operations

Functions

complement_base

Get the complement of a DNA base (encoded)

decode_base

Decode a 2-bit value to DNA nucleotide (uppercase)

decode_string

Decode a bit-packed representation back to a DNA string

encode_base

Encode a single DNA nucleotide to 2 bits

encode_sequence

Encode a DNA sequence (byte slice) to a bit-packed representation

encode_string

Encode a DNA string to a bit-packed representation