mojo-toml v0.3.0 - Native TOML Parser

I’ve released mojo-toml, a native TOML 1.0 parser for Mojo with zero Python dependencies.

What it does

Parses TOML configuration files into native Mojo structures: - All TOML 1.0 types (strings, integers, floats, booleans, arrays, tables) - Nested structures with dotted keys - Duplicate key detection - Clear error messages with line/column context - 96 tests ensuring reliability

Installation

git clone https://github.com/DataBooth/mojo-toml.git
cd mojo-toml
pixi run test-all

Coming soon to the modular-community channel.

Usage

from toml import parse

fn main() raises:
    var config = parse("""
        [database]
        host = "localhost"
        port = 5432
    """)
    
    var db = config["database"].as_table()
    print(db["host"].as_string())  # "localhost"
    print(db["port"].as_int())     # 5432

What’s in v0.3.0

• Proper dotted key support and duplicate detection
• Parser improvements with reset() method
• Reorganised test suite (96 tests across 10 files)
• Performance benchmarks and documentation

See the CHANGELOG for full details.

Links

• GitHub Repository
• v0.3.0 Release
• Documentation
• License: MIT

Roadmap

Planned features for future releases: - TOML writer (serialiser) - Array of tables [[array]] - Hex/octal/binary integers - Native datetime parsing

Acknowledgements

This project is sponsored by DataBooth, building high-performance data and AI services with Mojo.

Feedback and contributions welcome!