pub fn encode_5bit_to_string(data_5bit: &[u8]) -> Result<String, Error>Expand description
Encode a 5-bit-symbol data stream as a complete mk1 string.
The data stream is the concatenation header_symbols || bytes_to_5bit(payload_bytes)
where header_symbols is the 2-symbol single-string header or the
8-symbol chunked header (closure Q-5). The BCH code variant (regular or
long) is auto-selected from the resulting data-part length per BIP 93:
regular for ≤93-symbol data parts, long for 96–108-symbol data parts.
Lengths in the reserved-invalid 94–95 gap or outside the BIP 93 valid
range return [Error::InvalidStringLength].
Per the v0.1 emit policy described in design/IMPLEMENTATION_PLAN_mk_v0_1.md
§5.4, callers control fragment sizing so that each chunked fragment lands
within long-code territory. Single-string mk1 may pick regular or long
based on bytecode size.
Returns the full string starting with crate::consts::HRP and the
BIP 173 separator ("mk1").