LangWeave

Detect text languages. Translate between language pairs. Build internationalized Rust applications.

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Status

Experimental — This library is under active development. API may change in future versions.

Features

• Language Detection — Identify text languages across 15 supported languages including English, French, German, Spanish, Portuguese, Italian, Dutch, Russian, Arabic, Hebrew, Hindi, Japanese, Korean, Chinese, and Indonesian
• Translation Engine — Translate between supported language pairs
• Error Handling — Comprehensive error types for robust applications
• Async Support — Non-blocking language detection and translation
• Simple API — Easy-to-use functions for common tasks
• Safety — Built with #![forbid(unsafe_code)] in library code

Installation

Add to Cargo.toml:

[dependencies]
langweave = "0.0.2"

Requirements

• MSRV: Rust 1.87.0 or later

Feature Flags

Enable features in Cargo.toml:

[dependencies]
langweave = { version = "0.0.2", features = ["async"] }

Quick Start

Detect language and translate text:

use langweave::{detect_language, translate};
use langweave::error::I18nError;

fn main() -> Result<(), I18nError> {
    // Detect language using the high-level API
    let lang = detect_language("Hello, world!")?;
    println!("Detected: {}", lang);

    // Translate text
    let translated = translate("fr", "Hello")?;
    println!("Translated: {}", translated);

    Ok(())
}

Examples

Run examples:

cargo run --example <example_name>

Known Limitations

• Short text detection — Very short texts (< 10 characters) may not have enough signal for accurate language detection
• Mixed-language content — Text containing multiple languages may only detect the dominant language
• Romanized scripts — Languages written in non-native scripts (e.g., Japanese in romaji) may not be detected correctly
• Translation coverage — Not all phrases have translations; the library falls back to the original text for unknown keys

Documentation

Browse complete API reference at docs.rs/langweave.

Contributing

Read Contributing Guidelines before submitting changes.

License

Choose either Apache 2.0 or MIT license.

🎨 Designed by Sebastien Rousseau — https://sebastienrousseau.com/ 🚀 Engineered with Euxis — Enterprise Unified eXecution Intelligence System — https://euxis.co/