🛠️ json-fix

json-fix is a blazing-fast, Rust-powered JSON repair library built for resilient data pipelines, GPT outputs, web scraping tools, and any system where malformed JSON sneaks in.

It detects and fixes broken JSON strings — from misescaped quotes to missing commas — using a curated sequence of regex-powered healing steps. Ideal for both CLI tools and backend services.

🚀 Features

• ✅ Fixes unescaped or invalid quote issues
• ✅ Repairs trailing commas, missing brackets, and embedded key-value bugs
• ✅ Pure Rust — no unsafe, no dependencies outside fancy-regex
• ✅ Supports logs for each fix step
• ✅ Battle-tested against AI-generated JSON errors
• ✅ Easily embeddable as a library or CLI tool

🧪 Example

use json_fix::fix_json_syntax;

fn main() {
    let broken = r#"{ "name": "Momo, "age": 3 }"#;
    let result = fix_json_syntax(broken);

    if result.fixed != broken {
        println!("✅ Fixed JSON:\n{}", result.fixed);
    } else {
        println!("⚠️ No changes made.");
    }
}

📂 Usage

Install:

cargo add json-fix

As a library:

let result = fix_json_syntax(broken);

From CLI:

cargo run --example quick_fix

📊 Benchmarks

Run:

cargo bench

📁 Project Structure

• src/lib.rs – Public-facing API
• src/fixer.rs – Core fix logic (regex-powered)
• examples/quick_fix.rs – Minimal usage demo
• tests/fixer.rs – Real-world test case
• benches/fix_benchmark.rs – Criterion benchmarks

⚖️ License

MIT – In shāʾ Allāh, may it be a source of barakah for those who use and improve it.