Add mojo-toml v0.5.0 - Native TOML parser & writer

[Mjboothaus]

Add mojo-toml v0.5.0 - TOML 1.0 Complete + Partial 1.1

Adds mojo-toml - a native TOML parser and writer for Mojo with zero Python dependencies.

Features

TOML 1.0 - Fully Compliant:

• ✅ Complete TOML 1.0 specification support
• ✅ Array of tables [[section]] syntax
• ✅ Alternative number bases (hex 0xDEAD, octal 0o755, binary 0b1101)
• ✅ Nested tables, dotted keys, duplicate detection
• ✅ TOML writer with round-trip fidelity
• ✅ 168 comprehensive tests (127 parser + 41 writer)
• ✅ Clear error messages with line/column context

TOML 1.1 - Partial Support:

• ✅ \xHH escape sequences (codepoints 0-255)
• ✅ \e escape for escape character

Performance:

• Real-world config files: ~2ms parse time
• Simple documents: 40K+ parses/sec
• Comprehensive benchmark system with machine info reporting

Repository

• GitHub: https://github.com/DataBooth/mojo-toml
• Release: https://github.com/DataBooth/mojo-toml/releases/tag/v0.5.0
• License: MIT
• Docs: Complete with examples, benchmarks, and performance analysis

Testing

Package includes test_package.mojo which validates:

• Simple key-value parsing
• Integer, float, boolean, and array parsing
• Nested table structures
• Dotted key functionality
• Round-trip serialization

All 168 tests pass in the source repository.

Installation

Users can install via:

git submodule add https://github.com/databooth/mojo-toml vendor/mojo-toml
mojo -I vendor/mojo-toml/src your_app.mojo

Or via modular-community once merged:

pixi add mojo-toml

---

Sponsored by DataBooth - Building high-performance data and AI services with Mojo

[Mjboothaus]

v 0.5.0 has now been released

[Mjboothaus]

I have fixed the pre-commit issues and re-submitted. Please note that v 0.5.0 is the latest release of mojo-toml.

[Mjboothaus]

Hi @bgreni! 👋

Apologies for the confusion with this PR - I'm still learning the GitHub PR workflow! I've (hopefully) now updated everything properly:

What I've done:

✅ Fixed pre-commit hooks - All checks now pass (trailing whitespace, end-of-file)
✅ Updated to v0.5.0 - The recipe now points to the latest release (was v0.3.0)
✅ Updated description - Reflects current features and test count

Changes since original PR (v0.3.0 → v0.5.0):

• TOML 1.0 Complete: Array-of-tables [[section]], alternative number bases (hex/octal/binary)
• Partial TOML 1.1: \xHH and \e escape sequences
• 168 tests (up from 96) - 127 parser + 41 writer
• Comprehensive benchmarking system with machine info reporting
• Performance: ~2ms for real-world config files, 40K+ parses/sec for simple docs

Links:

• v0.5.0 Release: https://github.com/DataBooth/mojo-toml/releases/tag/v0.5.0
• Release Notes: https://github.com/DataBooth/mojo-toml/blob/main/docs/planning/RELEASE_NOTES_v0.5.0.md

The package is significantly more feature-complete now than when I first submitted the PR. All tests pass, pre-commit hooks pass, and it's ready for review!

Let me know if you need anything else or if I've messed up the PR workflow again. 😅 Thanks for your patience!