stdx

Compression codecs in Zig 0.16, written from the RFCs: DEFLATE with its zlib and gzip containers (RFC 1951, 1950 and 1952), Zstandard (RFC 8878 and RFC 9659) and brotli (RFC 7932). Beside them, a JSON encoder and decoder (RFC 8259) with JSON text sequences (RFC 7464). Each has an encoder and a decoder. Each one:

• performs no I/O: it reads octets the caller already has and writes into storage the caller owns;
• uses no heap: the caller owns every state, window and table, and each size is a comptime constant;
• streams and resumes: a call takes what input there is, writes what fits, and says whether it needs more input, needs more room, or is done;
• is deterministic: an encoder's output depends on its input and its parameters alone.

Nothing is implemented yet. The owner has ruled on the design in docs/decisions.md, and the build plan is docs/design.md §8. The work is tracked in the issues.

Modules

Each module is exported by name, so a project that depends on stdx imports it with dependency.module("gzip").

Module	What it holds
codec	The streaming contract every codec shares (decision 11)
checksum	CRC-32, Adler-32 and XXH64
deflate	RFC 1951
zlib	RFC 1950, the HTTP deflate coding
gzip	RFC 1952, the HTTP gzip coding
zstd	RFC 8878 and RFC 9659, the HTTP zstd coding
brotli	RFC 7932, the HTTP br coding
json	RFC 8259 and RFC 7464: a JSON encoder, a pull decoder, and text sequences (decision 27)

Building

zig build test

CLAUDE.md holds the rules every change follows.