Module codecs 

Haystack wire format codecs for serialization and deserialization.

Provides the Codec trait and five built-in implementations:

MIME Type	Module	Description
text/zinc	zinc	Zinc — the default Haystack text format (fastest encode/decode)
text/trio	trio	Trio — tag-oriented format for defining entities and defs
application/json	json (v4)	Haystack JSON v4 — standard JSON encoding
application/json;v=3	json (v3)	Haystack JSON v3 — legacy JSON encoding
text/csv	csv	CSV — comma-separated values for spreadsheet interop

Use codec_for() to look up a codec by MIME type:

use haystack_core::codecs::codec_for;

let zinc = codec_for("text/zinc").unwrap();
let grid = zinc.decode_grid("ver:\"3.0\"\nempty\n").unwrap();
let encoded = zinc.encode_grid(&grid).unwrap();

The shared submodule provides common encoding/decoding helper functions used by multiple codec implementations.

Modules

csv

CSV wire format codec for Haystack grids.

json

shared

Shared formatting helpers used by multiple codecs.

trio

zinc

Enums

CodecError

Errors that can occur during encoding or decoding.

Traits

Codec

Trait for Haystack wire format codecs.

Functions

codec_for

Look up a codec by MIME type.