abnf

ABNF

A parser for ABNF based on nom 7.

Example

The following code

use abnf::rulelist;

// Note: mind the trailing newline!
match rulelist("a = b / c\nc = *(d e)\n") {
    Ok(rules) => println!("{:#?}", rules),
    Err(error) => eprintln!("{}", error),
}

outputs

[
    Rule {
        name: "a",
        node: Alternatives(
            [
                Rulename(
                    "b",
                ),
                Rulename(
                    "c",
                ),
            ],
        ),
        kind: Basic,
    },
    Rule {
        name: "c",
        node: Repetition {
            repeat: Variable {
                min: None,
                max: None,
            },
            node: Group(
                Concatenation(
                    [
                        Rulename(
                            "d",
                        ),
                        Rulename(
                            "e",
                        ),
                    ],
                ),
            ),
        },
        kind: Basic,
    },
]

You can also use the provided example to parse and Debug-print any ABNF file.

cargo run --example=example examples/assets/abnf.abnf

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Changelog

[v0.13.0] - 2022-10-21

Added

• GitHub Actions CI
• Case-Sensitive String Support in ABNF (RFC 7405)
  • Thanks, @timothee-haudebourg! (#21)

Special thanks

• Thanks to @Nadrieril and @damirka for your contributions at a time without a CHANGELOG! :-)