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diff --git a/vendor/unic-char-property/src/property.rs b/vendor/unic-char-property/src/property.rs
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+++ b/vendor/unic-char-property/src/property.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.
+
+//! Taxonomy and contracts for Character Property types.
+
+use core::fmt::Debug;
+use core::hash::Hash;
+
+/// A Character Property, defined for some or all Unicode characters.
+pub trait CharProperty: PartialCharProperty + Debug + Eq + Hash {
+    /// The *abbreviated name* of the property.
+    fn prop_abbr_name() -> &'static str;
+
+    /// The *long name* of the property.
+    fn prop_long_name() -> &'static str;
+
+    /// The *human-readable* name of the property.
+    fn prop_human_name() -> &'static str;
+}
+
+/// A Character Property defined for some characters.
+///
+/// Examples: `Decomposition_Type`, `Numeric_Type`
+pub trait PartialCharProperty: Copy {
+    /// The property value for the character, or None.
+    fn of(ch: char) -> Option<Self>;
+}
+
+/// A Character Property defined on all characters.
+///
+/// Examples: `Age`, `Name`, `General_Category`, `Bidi_Class`
+pub trait TotalCharProperty: PartialCharProperty + Default {
+    /// The property value for the character.
+    fn of(ch: char) -> Self;
+}
+
+impl<T: TotalCharProperty> PartialCharProperty for T {
+    fn of(ch: char) -> Option<Self> {
+        Some(<Self as TotalCharProperty>::of(ch))
+    }
+}