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diff --git a/vendor/unic-char-range/src/lib.rs b/vendor/unic-char-range/src/lib.rs
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+// Copyright 2017 The UNIC Project Developers.
+//
+// See the COPYRIGHT file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+#![cfg_attr(feature = "exact-size-is-empty", feature(exact_size_is_empty))]
+#![cfg_attr(feature = "trusted-len", feature(trusted_len))]
+#![warn(
+    bad_style,
+    missing_debug_implementations,
+    missing_docs,
+    unconditional_recursion
+)]
+#![deny(unsafe_code)]
+
+//! # UNIC — Unicode Character Tools — Character Range
+//!
+//! A simple way to control iteration over a range of characters.
+//!
+//! # Examples
+//!
+//! ```
+//! #[macro_use] extern crate unic_char_range;
+//!
+//! # fn main() {
+//! for character in chars!('a'..='z') {
+//!     // character is each character in the lowercase english alphabet in order
+//! }
+//!
+//! for character in chars!(..) {
+//!     // character is every valid char from lowest codepoint to highest
+//! }
+//! # }
+//! ```
+//!
+//! # Features
+//!
+//! None of these features are included by default; they rely on unstable Rust feature gates.
+//!
+//! - `unstable`: enables all features
+//! - `exact-size-is-empty`: provide a specific impl of [`ExactSizeIterator::is_empty`][is_empty]
+//! - `trusted-len`: impl the [`TrustedLen`] contract
+//!
+//! [is_empty]: https://doc.rust-lang.org/std/iter/trait.ExactSizeIterator.html#method.is_empty
+//! [`FusedIterator`]: https://doc.rust-lang.org/std/iter/trait.FusedIterator.html
+//! [`TrustedLen`]: https://doc.rust-lang.org/std/iter/trait.TrustedLen.html
+//!
+
+mod pkg_info;
+pub use crate::pkg_info::{PKG_DESCRIPTION, PKG_NAME, PKG_VERSION};
+
+mod iter;
+pub use crate::iter::CharIter;
+
+mod range;
+pub use crate::range::CharRange;
+
+#[macro_use]
+mod macros;
+
+mod step;
+
+mod iter_fused;
+
+#[cfg(feature = "trusted-len")]
+mod iter_trusted_len;
+
+#[cfg(feature = "rayon")]
+mod par_iter;