Peginator codegen

Buildscript support for peginator. Please find documentation and other goodies on the main project.

lib.rs:

This crate contains the code used for generating peginator parsing code from a grammar file. Unless you are using Compile in a buildscript, you probably want to see the peginator crate documentation instead.

To integrate peginator using a buildscript, first add peginator_codegen as a build dependency in your Cargo.toml:

[build-dependencies]
peginator_codegen = "0.6"

And then in your build.rs:

use peginator_codegen::Compile;

fn main() {
    let out = format!("{}/grammar.rs", std::env::var("OUT_DIR").unwrap());

    peginator_codegen::Compile::file("grammar.ebnf")
        .destination(out)
        .format()
        .run_exit_on_error();

    println!("cargo:rerun-if-changed=grammar.ebnf");
}

See the documentation of Compile for more advanced options.