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yang2-rs

Rust bindings for the libyang2 library.

For raw FFI bindings for libyang2, see libyang2-sys.

Cargo.toml

[dependencies]
yang2 = "0.1"

Design Goals

Provide high-level bindings for libyang2 using idiomatic Rust
Leverage Rust's ownership system to detect API misuse problems at compile time
Automatic resource management
Zero-cost abstractions

Example

A basic example that parses and validates JSON instance data, and then converts it to the XML format:

use std::fs::File;
use yang2::context::{Context, ContextFlags};
use yang2::data::{
    Data, DataFormat, DataParserFlags, DataPrinterFlags, DataTree,
    DataValidationFlags,
};

static SEARCH_DIR: &str = "./assets/yang/";

fn main() -> std::io::Result<()> {
    // Initialize context.
    let ctx = Context::new(SEARCH_DIR, ContextFlags::NO_YANGLIBRARY)
        .expect("Failed to create context");

    // Load YANG modules.
    for module_name in &["ietf-interfaces", "iana-if-type"] {
        ctx.load_module(module_name, None)
            .expect("Failed to load module");
    }

    // Parse and validate data tree in the JSON format.
    let dtree = DataTree::parse_file(
        &ctx,
        File::open("./assets/data/interfaces.json")?,
        DataFormat::JSON,
        DataParserFlags::empty(),
        DataValidationFlags::empty(),
    )
    .expect("Failed to parse data tree");

    // Print data tree in the XML format.
    dtree
        .print_file(
            std::io::stdout(),
            DataFormat::XML,
            DataPrinterFlags::WD_ALL | DataPrinterFlags::WITH_SIBLINGS,
        )
        .expect("Failed to print data tree");

    Ok(())
}

More examples can be found here.

License

This project is licensed under the MIT license.

Contributing