Merging upstream version 1.74.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

14 files changed, 0 insertions, 896 deletions

diff --git a/vendor/unic-char-range/.cargo-checksum.json b/vendor/unic-char-range/.cargo-checksum.json
deleted file mode 100644
index 3f53bcd99..000000000
--- a/vendor/unic-char-range/.cargo-checksum.json
+++ /dev/null
@@ -1 +0,0 @@
-{"files":{"Cargo.toml":"36d694fec9b997f5cd86861a5d062d0e69794e051b07d8ebf1b79ab9482c3462","benches/benchmarks.rs":"43c24a525f93c2417e09e4a3914523faf5802e8d4e33697070ddb429ef16fbe0","examples/macro_use_std_tests.rs":"f96109f197e7750ed5ab10041542a5b59a0f3a791e52cc88ebfe5e098b05711e","src/iter.rs":"aeb949486a521f8c273d7875536d030643f74603112ef6688bafdd639bd8f487","src/iter_fused.rs":"2ab4a76b8e9610163deda5c602881c2b8e9696f607580a04bb4e17754e4f8f9b","src/iter_trusted_len.rs":"b89e6d7dbbc2f46a1b66015b1b5d2bc12d91309880847d4f980f7b39ff4a8945","src/lib.rs":"955ee0b9069740fd1ee724943562f9189b7eb29b49d79c8c352a6f193c12c3ec","src/macros.rs":"7f0a7eedfdd31a0d5f10b16f342524663b4f2c82a0c97728f8677d0d29490241","src/par_iter.rs":"d6a213e83fc3bd0b0d248c0a7e42fe1b8e24eeca1424195c4638c7328795d018","src/pkg_info.rs":"37cbe4efd0b0205d251e1ef7714b23e3be27052c8a0de6b1ae3cbf3aefae1fe5","src/range.rs":"5ce555d9cf8513c76f3b45002a3eed4a07cfe8a51e769f9888270091d319cb05","src/step.rs":"66cbc3e291f1014f994c88b61a741e4cd84e9ef62debef5e160b4ae4f5211bd7","tests/iter_tests.rs":"5af9a84509e992e83d1ee90e86ec1e88352edf7926013b4c7cbdfe1f90c61b7a"},"package":"0398022d5f700414f6b899e10b8348231abf9173fa93144cbc1a43b9793c1fbc"}
\ No newline at end of file
diff --git a/vendor/unic-char-range/Cargo.toml b/vendor/unic-char-range/Cargo.toml
deleted file mode 100644
index 42731411e..000000000
--- a/vendor/unic-char-range/Cargo.toml
+++ /dev/null
@@ -1,51 +0,0 @@
-# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
-#
-# When uploading crates to the registry Cargo will automatically
-# "normalize" Cargo.toml files for maximal compatibility
-# with all versions of Cargo and also rewrite `path` dependencies
-# to registry (e.g. crates.io) dependencies
-#
-# If you believe there's an error in this file please file an
-# issue against the rust-lang/cargo repository. If you're
-# editing this file be aware that the upstream Cargo.toml
-# will likely look very different (and much more reasonable)
-
-[package]
-edition = "2018"
-name = "unic-char-range"
-version = "0.9.0"
-authors = ["The UNIC Project Developers"]
-exclude = []
-description = "UNIC — Unicode Character Tools — Character Range and Iteration"
-keywords = ["text", "unicode", "utilities", "iteration"]
-categories = ["internationalization", "text-processing"]
-license = "MIT/Apache-2.0"
-repository = "https://github.com/open-i18n/rust-unic/"
-[dependencies.rayon]
-version = "1.0"
-optional = true
-
-[features]
-default = []
-exact-size-is-empty = []
-fused = []
-std = []
-trusted-len = []
-unstable = ["exact-size-is-empty", "fused", "trusted-len"]
-[badges.appveyor]
-branch = "master"
-repository = "open-i18n/rust-unic"
-service = "github"
-
-[badges.is-it-maintained-issue-resolution]
-repository = "open-i18n/rust-unic"
-
-[badges.is-it-maintained-open-issues]
-repository = "open-i18n/rust-unic"
-
-[badges.maintenance]
-status = "actively-developed"
-
-[badges.travis-ci]
-branch = "master"
-repository = "open-i18n/rust-unic"
diff --git a/vendor/unic-char-range/benches/benchmarks.rs b/vendor/unic-char-range/benches/benchmarks.rs
deleted file mode 100644
index a05ac271e..000000000
--- a/vendor/unic-char-range/benches/benchmarks.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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.
-
-#![feature(test)]
-
-extern crate test;
-
-use std::char;
-use unic_char_range::CharRange;
-
-#[bench]
-fn forward_iteration(b: &mut test::Bencher) {
-    b.iter(|| CharRange::all().iter().count())
-}
-
-#[bench]
-fn forward_iteration_baseline(b: &mut test::Bencher) {
-    b.iter(|| (0..0x11_0000).filter_map(char::from_u32).count())
-}
-
-#[bench]
-fn reverse_iteration(b: &mut test::Bencher) {
-    b.iter(|| CharRange::all().iter().rev().count())
-}
-
-#[bench]
-fn reverse_iteration_baseline(b: &mut test::Bencher) {
-    b.iter(|| (0..0x11_0000).rev().filter_map(char::from_u32).count())
-}
-
-#[bench]
-fn range_length(b: &mut test::Bencher) {
-    b.iter(|| CharRange::all().len())
-}
diff --git a/vendor/unic-char-range/examples/macro_use_std_tests.rs b/vendor/unic-char-range/examples/macro_use_std_tests.rs
deleted file mode 100644
index 751f93ae3..000000000
--- a/vendor/unic-char-range/examples/macro_use_std_tests.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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.
-
-#[macro_use]
-extern crate unic_char_range;
-
-fn main() {
-    assert!(chars!('\u{0}'..='\u{2}')
-        .iter()
-        .eq(['\u{0}', '\u{1}', '\u{2}'].iter().cloned()));
-}
diff --git a/vendor/unic-char-range/src/iter.rs b/vendor/unic-char-range/src/iter.rs
deleted file mode 100644
index 44901dfe3..000000000
--- a/vendor/unic-char-range/src/iter.rs
+++ /dev/null
@@ -1,151 +0,0 @@
-// 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.
-
-use core::{char, ops};
-
-use crate::{step, CharRange};
-
-const SURROGATE_RANGE: ops::Range<u32> = 0xD800..0xE000;
-
-/// An iterator over a range of unicode code points.
-///
-/// Constructed via `CharRange::iter`. See `CharRange` for more information.
-#[derive(Clone, Debug)]
-pub struct CharIter {
-    /// The lowest uniterated character (inclusive).
-    ///
-    /// Iteration is finished if this is higher than `high`.
-    low: char,
-
-    /// The highest uniterated character (inclusive).
-    ///
-    /// Iteration is finished if this is lower than `low`.
-    high: char,
-}
-
-impl From<CharRange> for CharIter {
-    fn from(range: CharRange) -> CharIter {
-        CharIter {
-            low: range.low,
-            high: range.high,
-        }
-    }
-}
-
-impl From<CharIter> for CharRange {
-    fn from(iter: CharIter) -> CharRange {
-        CharRange {
-            low: iter.low,
-            high: iter.high,
-        }
-    }
-}
-
-impl CharIter {
-    #[inline]
-    #[allow(unsafe_code)]
-    // When stepping `self.low` forward would go over `char::MAX`,
-    // Set `self.high` to `'\0'` instead. It will have the same effect --
-    // consuming the last element from the iterator and ending iteration.
-    fn step_forward(&mut self) {
-        if self.low == char::MAX {
-            self.high = '\0'
-        } else {
-            self.low = unsafe { step::forward(self.low) }
-        }
-    }
-
-    #[inline]
-    #[allow(unsafe_code)]
-    // When stepping `self.high` backward would cause underflow,
-    // set `self.low` to `char::MAX` instead. It will have the same effect --
-    // consuming the last element from the iterator and ending iteration.
-    fn step_backward(&mut self) {
-        if self.high == '\0' {
-            self.low = char::MAX;
-        } else {
-            self.high = unsafe { step::backward(self.high) }
-        }
-    }
-
-    #[inline]
-    /// ExactSizeIterator::is_empty() for stable
-    fn is_finished(&self) -> bool {
-        self.low > self.high
-    }
-}
-
-impl Iterator for CharIter {
-    type Item = char;
-
-    #[inline]
-    fn next(&mut self) -> Option<char> {
-        if self.is_finished() {
-            return None;
-        }
-
-        let ch = self.low;
-        self.step_forward();
-        Some(ch)
-    }
-
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        let len = self.len();
-        (len, Some(len))
-    }
-
-    fn last(self) -> Option<char> {
-        if self.is_finished() {
-            None
-        } else {
-            Some(self.high)
-        }
-    }
-
-    fn max(self) -> Option<char> {
-        self.last()
-    }
-
-    fn min(mut self) -> Option<char> {
-        self.next()
-    }
-}
-
-impl DoubleEndedIterator for CharIter {
-    #[inline]
-    fn next_back(&mut self) -> Option<Self::Item> {
-        if self.is_finished() {
-            None
-        } else {
-            let ch = self.high;
-            self.step_backward();
-            Some(ch)
-        }
-    }
-}
-
-impl ExactSizeIterator for CharIter {
-    fn len(&self) -> usize {
-        if self.is_finished() {
-            return 0;
-        }
-        let naive_range = (self.low as u32)..(self.high as u32 + 1);
-        if naive_range.start <= SURROGATE_RANGE.start && SURROGATE_RANGE.end <= naive_range.end {
-            naive_range.len() - SURROGATE_RANGE.len()
-        } else {
-            naive_range.len()
-        }
-    }
-
-    #[cfg(feature = "exact-size-is-empty")]
-    fn is_empty(&self) -> bool {
-        self.is_finished()
-    }
-}
diff --git a/vendor/unic-char-range/src/iter_fused.rs b/vendor/unic-char-range/src/iter_fused.rs
deleted file mode 100644
index f0a3faeb3..000000000
--- a/vendor/unic-char-range/src/iter_fused.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-// 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.
-
-use core::iter;
-
-use super::iter::CharIter;
-
-impl iter::FusedIterator for CharIter {}
diff --git a/vendor/unic-char-range/src/iter_trusted_len.rs b/vendor/unic-char-range/src/iter_trusted_len.rs
deleted file mode 100644
index aaf8e5340..000000000
--- a/vendor/unic-char-range/src/iter_trusted_len.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-// 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.
-
-use core::iter;
-
-use super::iter::CharIter;
-
-#[allow(unsafe_code)]
-unsafe impl iter::TrustedLen for CharIter {}
diff --git a/vendor/unic-char-range/src/lib.rs b/vendor/unic-char-range/src/lib.rs
deleted file mode 100644
index 1f6e82c47..000000000
--- a/vendor/unic-char-range/src/lib.rs
+++ /dev/null
@@ -1,75 +0,0 @@
-// 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;
diff --git a/vendor/unic-char-range/src/macros.rs b/vendor/unic-char-range/src/macros.rs
deleted file mode 100644
index a1b41d295..000000000
--- a/vendor/unic-char-range/src/macros.rs
+++ /dev/null
@@ -1,44 +0,0 @@
-// 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.
-
-#[macro_export]
-/// Convenience macro for the initialization of `CharRange`s.
-///
-/// # Syntax
-///
-/// ```
-/// # #[macro_use] extern crate unic_char_range;
-/// # fn main() {
-/// chars!('a'..'z'); // The half open range including 'a' and excluding 'z'
-/// chars!('a'..='z'); // The closed range including 'a' and including 'z'
-/// chars!(..); // All characters
-/// # }
-/// ```
-///
-/// `chars!('a'..='z')` and `chars!(..)` are constant-time expressions, and can be used
-/// where such are required, such as in the initialization of constant data structures.
-///
-/// NOTE: Because an `expr` capture cannot be followed by a `..`/`..=`, this macro captures token
-/// trees. This means that if you want to pass more than one token, you must parenthesize it (e.g.
-/// `chars!('\0' ..= (char::MAX))`).
-macro_rules! chars {
-    ( $low:tt .. $high:tt ) => {
-        $crate::CharRange::open_right($low, $high)
-    };
-    ( $low:tt ..= $high:tt ) => {
-        $crate::CharRange {
-            low: $low,
-            high: $high,
-        }
-    };
-    ( .. ) => {
-        $crate::CharRange::all()
-    };
-}
diff --git a/vendor/unic-char-range/src/par_iter.rs b/vendor/unic-char-range/src/par_iter.rs
deleted file mode 100644
index 5b40d221a..000000000
--- a/vendor/unic-char-range/src/par_iter.rs
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2018 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.
-
-use rayon;
-
-use self::rayon::iter::plumbing::{Consumer, ProducerCallback, UnindexedConsumer};
-use self::rayon::prelude::*;
-use crate::step::{AFTER_SURROGATE, BEFORE_SURROGATE};
-use crate::CharRange;
-use core::char;
-use core::ops::Range;
-
-const SKIP_LENGTH: u32 =
-    crate::step::AFTER_SURROGATE as u32 - crate::step::BEFORE_SURROGATE as u32 - 1;
-
-#[derive(Clone, Debug)]
-pub struct Iter(rayon::iter::Map<rayon::range::Iter<u32>, fn(u32) -> char>);
-
-impl ParallelIterator for Iter {
-    type Item = char;
-
-    fn drive_unindexed<C>(self, consumer: C) -> C::Result
-    where
-        C: UnindexedConsumer<Self::Item>,
-    {
-        self.0.drive_unindexed(consumer)
-    }
-}
-
-impl IndexedParallelIterator for Iter {
-    fn len(&self) -> usize {
-        self.0.len()
-    }
-
-    fn drive<C: Consumer<Self::Item>>(self, consumer: C) -> C::Result {
-        self.0.drive(consumer)
-    }
-
-    fn with_producer<CB: ProducerCallback<Self::Item>>(self, callback: CB) -> CB::Output {
-        self.0.with_producer(callback)
-    }
-}
-
-impl CharRange {
-    fn compact_range(&self) -> Range<u32> {
-        let low = self.low as u32;
-        let high = self.high as u32 + 1;
-        low..(if self.high >= AFTER_SURROGATE {
-            high - SKIP_LENGTH
-        } else {
-            high
-        })
-    }
-}
-
-impl IntoParallelIterator for CharRange {
-    type Item = char;
-    type Iter = Iter;
-
-    fn into_par_iter(self) -> Self::Iter {
-        Iter(self.compact_range().into_par_iter().map(|c| {
-            let c = if c > BEFORE_SURROGATE as u32 {
-                c + SKIP_LENGTH
-            } else {
-                c
-            };
-            debug_assert!(c <= BEFORE_SURROGATE as u32 || c >= AFTER_SURROGATE as u32);
-            debug_assert!(c <= char::MAX as u32);
-            #[allow(unsafe_code)]
-            unsafe {
-                char::from_u32_unchecked(c)
-            }
-        }))
-    }
-}
-
-impl<'a> IntoParallelIterator for &'a CharRange {
-    type Item = char;
-    type Iter = Iter;
-
-    fn into_par_iter(self) -> Self::Iter {
-        (*self).into_par_iter()
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn length_agrees() {
-        assert_eq!(chars!(..).iter().count(), chars!(..).par_iter().count())
-    }
-
-    #[test]
-    #[cfg(feature = "std")]
-    fn content_agrees() {
-        assert_eq!(
-            chars!(..).iter().collect::<Vec<_>>(),
-            chars!(..).par_iter().collect::<Vec<_>>()
-        )
-    }
-}
diff --git a/vendor/unic-char-range/src/pkg_info.rs b/vendor/unic-char-range/src/pkg_info.rs
deleted file mode 100644
index a1ab2853f..000000000
--- a/vendor/unic-char-range/src/pkg_info.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-// 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.
-
-//! Package information
-
-/// UNIC component version.
-pub const PKG_VERSION: &str = env!("CARGO_PKG_VERSION");
-
-/// UNIC component name.
-pub const PKG_NAME: &str = env!("CARGO_PKG_NAME");
-
-/// UNIC component description.
-pub const PKG_DESCRIPTION: &str = env!("CARGO_PKG_DESCRIPTION");
diff --git a/vendor/unic-char-range/src/range.rs b/vendor/unic-char-range/src/range.rs
deleted file mode 100644
index d958016fc..000000000
--- a/vendor/unic-char-range/src/range.rs
+++ /dev/null
@@ -1,231 +0,0 @@
-// 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.
-
-use core::{char, cmp};
-
-#[cfg(feature = "std")]
-use std::collections::Bound;
-
-use self::cmp::Ordering;
-use crate::CharIter;
-
-/// A range of unicode code points.
-///
-/// The most idiomatic way to construct this range is through the use of the `chars!` macro:
-///
-/// ```
-/// #[macro_use] extern crate unic_char_range;
-/// use unic_char_range::CharRange;
-///
-/// # fn main() {
-/// assert_eq!(chars!('a'..='z'), CharRange::closed('a', 'z'));
-/// assert_eq!(chars!('a'..'z'), CharRange::open_right('a', 'z'));
-/// assert_eq!(chars!(..), CharRange::all());
-/// # }
-/// ```
-///
-/// If constructed in reverse order, such that `self.high` is ordered before `self.low`,
-/// the range is empty. If you want to iterate in decreasing order, use `.iter().rev()`.
-/// All empty ranges are considered equal no matter the internal state.
-#[derive(Copy, Clone, Debug, Eq)]
-pub struct CharRange {
-    /// The lowest character in this range (inclusive).
-    pub low: char,
-
-    /// The highest character in this range (inclusive).
-    pub high: char,
-}
-
-/// Constructors
-impl CharRange {
-    /// Construct a closed range of characters.
-    ///
-    /// If `stop` is ordered before `start`, the resulting range will be empty.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use unic_char_range::*;
-    /// assert_eq!(
-    ///     CharRange::closed('a', 'd').iter().collect::<Vec<_>>(),
-    ///     vec!['a', 'b', 'c', 'd']
-    /// )
-    /// ```
-    pub fn closed(start: char, stop: char) -> CharRange {
-        CharRange {
-            low: start,
-            high: stop,
-        }
-    }
-
-    /// Construct a half open (right) range of characters.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use unic_char_range::*;
-    /// assert_eq!(
-    ///     CharRange::open_right('a', 'd').iter().collect::<Vec<_>>(),
-    ///     vec!['a', 'b', 'c']
-    /// )
-    /// ```
-    pub fn open_right(start: char, stop: char) -> CharRange {
-        let mut iter = CharRange::closed(start, stop).iter();
-        let _ = iter.next_back();
-        iter.into()
-    }
-
-    /// Construct a half open (left) range of characters.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use unic_char_range::*;
-    /// assert_eq!(
-    ///     CharRange::open_left('a', 'd').iter().collect::<Vec<_>>(),
-    ///     vec!['b', 'c', 'd']
-    /// )
-    /// ```
-    pub fn open_left(start: char, stop: char) -> CharRange {
-        let mut iter = CharRange::closed(start, stop).iter();
-        let _ = iter.next();
-        iter.into()
-    }
-
-    /// Construct a fully open range of characters.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use unic_char_range::*;
-    /// assert_eq!(
-    ///     CharRange::open('a', 'd').iter().collect::<Vec<_>>(),
-    ///     vec!['b', 'c']
-    /// )
-    /// ```
-    pub fn open(start: char, stop: char) -> CharRange {
-        let mut iter = CharRange::closed(start, stop).iter();
-        let _ = iter.next();
-        let _ = iter.next_back();
-        iter.into()
-    }
-
-    #[cfg(feature = "std")]
-    /// Construct a range of characters from bounds.
-    pub fn bound(start: Bound<char>, stop: Bound<char>) -> CharRange {
-        let start = if start == Bound::Unbounded {
-            Bound::Included('\u{0}')
-        } else {
-            start
-        };
-        let stop = if stop == Bound::Unbounded {
-            Bound::Included(char::MAX)
-        } else {
-            stop
-        };
-        match (start, stop) {
-            (Bound::Included(start), Bound::Included(stop)) => CharRange::closed(start, stop),
-            (Bound::Excluded(start), Bound::Excluded(stop)) => CharRange::open(start, stop),
-            (Bound::Included(start), Bound::Excluded(stop)) => CharRange::open_right(start, stop),
-            (Bound::Excluded(start), Bound::Included(stop)) => CharRange::open_left(start, stop),
-            (Bound::Unbounded, _) | (_, Bound::Unbounded) => unreachable!(),
-        }
-    }
-
-    /// Construct a range over all Unicode characters (Unicode Scalar Values).
-    pub fn all() -> CharRange {
-        CharRange::closed('\u{0}', char::MAX)
-    }
-
-    /// Construct a range over all characters of *assigned* Unicode Planes.
-    ///
-    /// Assigned *normal* (non-special) Unicode Planes are:
-    /// - Plane 0: *Basic Multilingual Plane* (BMP)
-    /// - Plane 1: *Supplementary Multilingual Plane* (SMP)
-    /// - Plane 2: *Supplementary Ideographic Plane* (SIP)
-    ///
-    /// Unicode Plane 14, *Supplementary Special-purpose Plane* (SSP), is not included in this
-    /// range, mainly because of the limit of `CharRange` only supporting a continuous range.
-    ///
-    /// Unicode Planes 3 to 13 are *Unassigned* planes and therefore excluded.
-    ///
-    /// Unicode Planes 15 and 16 are *Private Use Area* planes and won't have Unicode-assigned
-    /// characters.
-    pub fn assigned_normal_planes() -> CharRange {
-        CharRange::closed('\u{0}', '\u{2_FFFF}')
-    }
-}
-
-/// Collection-like fns
-impl CharRange {
-    /// Does this range include a character?
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// # use unic_char_range::CharRange;
-    /// assert!(   CharRange::closed('a', 'g').contains('d'));
-    /// assert!( ! CharRange::closed('a', 'g').contains('z'));
-    ///
-    /// assert!( ! CharRange:: open ('a', 'a').contains('a'));
-    /// assert!( ! CharRange::closed('z', 'a').contains('g'));
-    /// ```
-    pub fn contains(&self, ch: char) -> bool {
-        self.low <= ch && ch <= self.high
-    }
-
-    /// Determine the ordering of this range and a character.
-    ///
-    /// # Panics
-    ///
-    /// Panics if the range is empty. This fn may be adjusted in the future to not panic
-    /// in optimized builds. Even if so, an empty range will never compare as `Ordering::Equal`.
-    pub fn cmp_char(&self, ch: char) -> Ordering {
-        // possible optimization: only assert this in debug builds
-        assert!(!self.is_empty(), "Cannot compare empty range's ordering");
-        if self.high < ch {
-            Ordering::Less
-        } else if self.low > ch {
-            Ordering::Greater
-        } else {
-            Ordering::Equal
-        }
-    }
-
-    /// How many characters are in this range?
-    pub fn len(&self) -> usize {
-        self.iter().len()
-    }
-
-    /// Is this range empty?
-    pub fn is_empty(&self) -> bool {
-        self.low > self.high
-    }
-
-    /// Create an iterator over this range.
-    pub fn iter(&self) -> CharIter {
-        (*self).into()
-    }
-}
-
-impl IntoIterator for CharRange {
-    type IntoIter = CharIter;
-    type Item = char;
-
-    fn into_iter(self) -> CharIter {
-        self.iter()
-    }
-}
-
-impl PartialEq<CharRange> for CharRange {
-    fn eq(&self, other: &CharRange) -> bool {
-        (self.is_empty() && other.is_empty()) || (self.low == other.low && self.high == other.high)
-    }
-}
diff --git a/vendor/unic-char-range/src/step.rs b/vendor/unic-char-range/src/step.rs
deleted file mode 100644
index 1140edd9e..000000000
--- a/vendor/unic-char-range/src/step.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-// 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.
-
-use core::char;
-
-pub const BEFORE_SURROGATE: char = '\u{D7FF}';
-pub const AFTER_SURROGATE: char = '\u{E000}';
-
-#[inline]
-#[allow(unsafe_code)]
-/// Step a character one step towards `char::MAX`.
-///
-/// # Safety
-///
-/// If the given character is `char::MAX`, the return value is not a valid character.
-pub unsafe fn forward(ch: char) -> char {
-    if ch == BEFORE_SURROGATE {
-        AFTER_SURROGATE
-    } else {
-        char::from_u32_unchecked(ch as u32 + 1)
-    }
-}
-
-#[inline]
-#[allow(unsafe_code)]
-/// Step a character one step towards `'\0'`.
-///
-/// # Safety
-///
-/// If the given character is `'\0'`, this will cause an underflow.
-/// (Thus, it will panic in debug mode, undefined behavior in release mode.)
-pub unsafe fn backward(ch: char) -> char {
-    if ch == AFTER_SURROGATE {
-        BEFORE_SURROGATE
-    } else {
-        char::from_u32_unchecked(ch as u32 - 1)
-    }
-}
diff --git a/vendor/unic-char-range/tests/iter_tests.rs b/vendor/unic-char-range/tests/iter_tests.rs
deleted file mode 100644
index 9678009a9..000000000
--- a/vendor/unic-char-range/tests/iter_tests.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-// 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.
-
-use std::{char, u32, vec};
-
-use unic_char_range::CharRange;
-
-fn all_chars() -> vec::IntoIter<char> {
-    (u32::MIN..u32::MAX)
-        .take_while(|&u| u <= char::MAX as u32)
-        .filter_map(char::from_u32)
-        .collect::<Vec<_>>()
-        .into_iter()
-}
-
-#[test]
-fn test_iter_all_chars() {
-    assert!(CharRange::all().iter().eq(all_chars()))
-}
-
-#[test]
-fn test_iter_all_chars_rev() {
-    assert!(CharRange::all().iter().rev().eq(all_chars().rev()))
-}
-
-#[test]
-fn test_iter_all_chars_mixed_next_back() {
-    let mut custom = CharRange::all().iter();
-    let mut simple = all_chars();
-    while let Some(custom_char) = custom.next() {
-        assert_eq!(Some(custom_char), simple.next());
-        assert_eq!(custom.next_back(), simple.next_back());
-    }
-    assert_eq!(None, simple.next());
-}
-
-#[test]
-fn test_iter_all_chars_into_iter() {
-    for _ch in CharRange::all() {
-        // nothing
-    }
-}
-
-#[test]
-fn test_iter_fused() {
-    let mut iter = CharRange::all().iter();
-    let mut fused = all_chars().fuse();
-    assert!(iter.by_ref().eq(fused.by_ref()));
-    for _ in 0..100 {
-        assert_eq!(iter.next(), fused.next());
-    }
-}
-
-#[test]
-fn test_iter_exact_trusted_len() {
-    fn assert_presents_right_len<I: ExactSizeIterator>(iter: &I, len: usize) {
-        assert_eq!(iter.len(), len);
-        assert_eq!(iter.size_hint(), (len, Some(len)));
-    }
-
-    let mut iter = CharRange::all().iter();
-    let mut predicted_length = iter.len();
-    assert_eq!(predicted_length, all_chars().len());
-
-    while let Some(_) = iter.next() {
-        predicted_length -= 1;
-        assert_presents_right_len(&iter, predicted_length);
-    }
-
-    assert_presents_right_len(&iter, 0);
-}