🚀 JSON KiT

JSON KiT is a high-performance, lightweight Rust utility library engineered for robust JSON data processing.

Its primary mission is to bridge the gap between "JSON with Comments" (JSONC) and standard JSON parsers by efficiently sanitizing input strings, as well as providing tools for formatting JSON data.

✨ Features

🛡️ Comment Stripping: Seamlessly removes standard C-style comments.
- Single-line: // comment
- Multi-line: /* comment */
📦 JSON Minification: Efficiently removes whitespace to reduce payload size.
✅ JSON Validation: Validates JSON strings to ensure they are well-formed.
🎨 JSON Formatting: Prettify minified JSON with customizable indentation (spaces or tabs).
🧠 Context-Aware Parsing: Intelligently distinguishes between actual comments and comment-like patterns within string literals.
⚡ High Performance: Built on top of the regex crate with OnceLock for thread-safe, lazy initialization.

📦 Installation

Integrate jsonkit into your project by adding it to your Cargo.toml:

[dependencies]
jsonkit = { git = "https://gitlab.com/lazylib/rs/jsonkit" }

Note: As this crate is hosted in a private/custom repository, please ensure your git configuration allows access if necessary.

🚀 Usage

Strip Comments

Sanitizing JSON content is straightforward.

use jsonkit::strip_comments;

fn main() {
    // Input: JSON with comments (JSONC)
    let json_with_comments = r#"
    {
        // User profile configuration
        "name": "Alice",
        "age": 30, /* Age verified */
        "website": "http://example.com" // URL preserved
    }
    "#;

    // Process: Strip comments
    let clean_json = strip_comments(json_with_comments);

    // Output: Standard JSON
    println!("{}", clean_json);
}

Minify JSON

Reduce the size of your JSON by removing unnecessary whitespace.

use jsonkit::minify;

fn main() {
    let json = r#"
    {
        "name": "Alice",
        "age": 30
    }
    "#;

    let minified = minify(json);
    println!("{}", minified); // Output: {"name":"Alice","age":30}
}

Format JSON

You can format (prettify) JSON strings using prettify.

use jsonkit::{prettify, IndentStyle};

fn main() {
    let raw_json = r#"{"name":"Alice","age":30,"skills":["Rust","JSON"]}"#;

    // Format with 4 spaces
    match prettify(raw_json, IndentStyle::Spaces(4)) {
        Ok(formatted) => println!("{}", formatted),
        Err(e) => eprintln!("Error formatting JSON: {}", e),
    }
    
    // Format with Tabs
    // let formatted = prettify(raw_json, IndentStyle::Tabs).unwrap();
}

Validate JSON

Check if a string is a valid JSON.

use jsonkit::validate;

fn main() {
    let valid_json = r#"{"name": "Alice", "age": 30}"#;
    match validate(valid_json) {
        Ok(_) => println!("Valid JSON"),
        Err(e) => println!("Invalid JSON: {}", e),
    }

    let invalid_json = r#"{"name": "Alice", "age": 30,}"#; // Trailing comma
    match validate(invalid_json) {
        Ok(_) => println!("Valid JSON"),
        Err(e) => println!("Invalid JSON: {}", e),
    }
}

📚 API Reference

`strip_comments`

pub fn strip_comments(raw_json_with_comments: &str) -> String

Transforms a JSON string containing comments into a standard JSON string.

Parameter	Type	Description
`raw_json_with_comments`	`&str`	The input string containing JSONC data.
Returns	`String`	A new, sanitized string ready for parsing.

`minify`

pub fn minify(json: &str) -> String

Minifies a JSON string by removing unnecessary whitespace.

Parameter	Type	Description
`json`	`&str`	The input JSON string.
Returns	`String`	The minified JSON string.

`prettify`

pub fn prettify(raw_json: &str, style: IndentStyle) -> Result<String, String>

Prettifies a JSON string with the specified indentation style.

Parameter	Type	Description
`raw_json`	`&str`	The input JSON string.
`style`	`IndentStyle`	The indentation style (`IndentStyle::Tabs` or `IndentStyle::Spaces(usize)`).
Returns	`Result<String, String>`	The formatted JSON string or an error message.

`validate`

pub fn validate(json: &str) -> Result<(), String>

Validates a JSON string.

Parameter	Type	Description
`json`	`&str`	The input JSON string.
Returns	`Result<(), String>`	`Ok(())` if valid, or an error message.

`IndentStyle`

Enum for selecting indentation style.

pub enum IndentStyle {
    Tabs,
    Spaces(usize),
}

🛠️ Development

We welcome contributions! To get started with local development:

Clone the repository:

git clone https://gitlab.com/lazylib/rs/jsonkit.git
cd jsonkit

Run tests: Ensure all functionality works as expected.
```
cargo test
```

📄 License

This project is proudly licensed under the MIT License. See the LICENSE file for details.

Made with ❤️ in Rust.

jsonkit 0.2.2