// Copyright ⓒ 2015-2016 Kevin B. Knapp and [`clap-rs` contributors](https://github.com/clap-rs/clap/graphs/contributors).
// Licensed under the MIT license
// (see LICENSE or <http://opensource.org/licenses/MIT>) All files in the project carrying such
// notice may not be copied, modified, or distributed except according to those terms.

//! > **Command Line Argument Parser for Rust**
//!
//! Quick Links:
//! - Derive [tutorial][_derive::_tutorial] and [reference][_derive]
//! - Builder [tutorial][_tutorial] and [reference](index.html)
//! - [Cookbook][_cookbook]
//! - [FAQ][_faq]
//! - [Discussions](https://github.com/clap-rs/clap/discussions)
//!
//! ## Aspirations
//!
//! - Out of the box, users get a polished CLI experience
//!   - Including common argument behavior, help generation, suggested fixes for users, colored output, [shell completions](https://github.com/clap-rs/clap/tree/master/clap_complete), etc
//! - Flexible enough to port your existing CLI interface
//!   - However, we won't necessarily streamline support for each use case
//! - Reasonable parse performance
//! - Resilient maintainership, including
//!   - Willing to break compatibility rather than batching up breaking changes in large releases
//!   - Leverage feature flags to keep to one active branch
//!   - Being under [WG-CLI](https://github.com/rust-cli/team/) to increase the bus factor
//! - We follow semver and will wait about 6-9 months between major breaking changes
//! - We will support the last two minor Rust releases (MSRV, currently 1.64.0)
//!
//! While these aspirations can be at odds with fast build times and low binary
//! size, we will still strive to keep these reasonable for the flexibility you
//! get.  Check out the
//! [argparse-benchmarks](https://github.com/rust-cli/argparse-benchmarks-rs) for
//! CLI parsers optimized for other use cases.
//!
//! ## Example
//!
//! Run
//! ```console
//! $ cargo add clap --features derive
//! ```
//! *(See also [feature flag reference][_features])*
//!
//! Then define your CLI in `main.rs`:
//! ```rust
//! # #[cfg(feature = "derive")] {
#![doc = include_str!("../examples/demo.rs")]
//! # }
//! ```
//!
//! And try it out:
#![doc = include_str!("../examples/demo.md")]
//!
//! See also the derive [tutorial][_derive::_tutorial] and [reference][_derive]
//!
//! ### Related Projects
//!
//! Augment clap:
//! - [wild](https://crates.io/crates/wild) for supporting wildcards (`*`) on Windows like you do Linux
//! - [argfile](https://crates.io/crates/argfile) for loading additional arguments from a file (aka response files)
//! - [shadow-rs](https://crates.io/crates/shadow-rs) for generating `Command::long_version`
//! - [clap_mangen](https://crates.io/crates/clap_mangen) for generating man page source (roff)
//! - [clap_complete](https://crates.io/crates/clap_complete) for shell completion support
//!
//! CLI Helpers
//! - [clap-verbosity-flag](https://crates.io/crates/clap-verbosity-flag)
//! - [clap-cargo](https://crates.io/crates/clap-cargo)
//! - [concolor-clap](https://crates.io/crates/concolor-clap)
//!
//! Testing
//! - [`trycmd`](https://crates.io/crates/trycmd):  Bulk snapshot testing
//! - [`snapbox`](https://crates.io/crates/snapbox):  Specialized snapshot testing
//! - [`assert_cmd`](https://crates.io/crates/assert_cmd) and [`assert_fs`](https://crates.io/crates/assert_fs): Customized testing
//!
//! Documentation:
//! - [Command-line Apps for Rust](https://rust-cli.github.io/book/index.html) book
//!

#![cfg_attr(docsrs, feature(doc_auto_cfg))]
#![doc(html_logo_url = "https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png")]
#![warn(
    missing_docs,
    missing_debug_implementations,
    missing_copy_implementations,
    trivial_casts,
    unused_allocation,
    trivial_numeric_casts,
    clippy::single_char_pattern
)]
#![forbid(unsafe_code)]
// HACK https://github.com/rust-lang/rust-clippy/issues/7290
#![allow(clippy::single_component_path_imports)]
#![allow(clippy::branches_sharing_code)]
// Doesn't allow for debug statements, etc to be unique
#![allow(clippy::if_same_then_else)]
// Breaks up parallelism that clarifies intent
#![allow(clippy::collapsible_else_if)]

pub use clap_builder::*;
#[cfg(feature = "derive")]
#[doc(hidden)]
pub use clap_derive::{self, *};

#[cfg(feature = "unstable-doc")]
pub mod _cookbook;
#[cfg(feature = "unstable-doc")]
pub mod _derive;
#[cfg(feature = "unstable-doc")]
pub mod _faq;
#[cfg(feature = "unstable-doc")]
pub mod _features;
#[cfg(feature = "unstable-doc")]
pub mod _tutorial;

#[doc(hidden)]
#[cfg(feature = "derive")]
pub mod __derive_refs {
    #[doc(hidden)]
    pub use once_cell;
}