tpt-yaml

A dependency-light YAML toolkit for Rust, split into small crates so you only pay for what you use. No dependency on any tpt-io-* crate — this family is standalone.

Crate	Status	Description
tpt-yaml-core	in progress	Lexer, parser, arena-based node model, no_std + alloc + std, zero external dependencies
tpt-yaml-serde	stub	serde Deserializer/Serializer over tpt-yaml-core's arena, plus a dynamic Value type
tpt-yaml-edit	stub	Lossless, span-preserving edits: change a value, re-render only the touched subtree
tpt-yaml-schema	stub	JSON Schema (2020-12 subset) validation for parsed YAML documents
tpt-yaml-cli	stub	tpt-yaml binary: check, fmt, convert, diff subcommands
tpt-yaml-ffi	in progress	C ABI foundation for language bindings
tpt-yaml-wasm	stub	wasm-bindgen bindings for the browser/Node.js
tpt-yaml-python	not yet implemented	Planned pyo3 bindings (scaffold only)

Each crate has its own README.md (usage, design, known limitations) and CHANGELOG.md (unreleased so far — nothing has been published).

Quick start

let doc = tpt_yaml_core::parse("key: value\nlist:\n  - a\n  - b\n")?;
let root = doc.root().unwrap();

Status

This is pre-1.0, under active development. See todo.md for the detailed build checklist and current status snapshot.

Publish order

Crates depend on each other in this order, so that's the order they'll be published in:

1. tpt-yaml-core
2. tpt-yaml-serde
3. tpt-yaml-edit
4. tpt-yaml-schema
5. tpt-yaml-cli
6. tpt-yaml-ffi

License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.