From 8cdfa445d6629ffef4cb84967ff7017654045bc2 Mon Sep 17 00:00:00 2001
From: mo khan <mo@mokhan.ca>
Date: Wed, 2 Jul 2025 18:36:06 -0600
Subject: chore: add vendor directory

---
 vendor/unicode-normalization/src/replace.rs | 66 +++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 vendor/unicode-normalization/src/replace.rs

(limited to 'vendor/unicode-normalization/src/replace.rs')

diff --git a/vendor/unicode-normalization/src/replace.rs b/vendor/unicode-normalization/src/replace.rs
new file mode 100644
index 00000000..3ab2a573
--- /dev/null
+++ b/vendor/unicode-normalization/src/replace.rs
@@ -0,0 +1,66 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// 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::{
+    fmt::{self, Write},
+    iter::FusedIterator,
+};
+use tinyvec::ArrayVec;
+
+/// External iterator for replacements for a string's characters.
+#[derive(Clone)]
+pub struct Replacements<I> {
+    iter: I,
+    // At this time, the longest replacement sequence has length 2, so we just
+    // need buffer space for 1 codepoint.
+    buffer: Option<char>,
+}
+
+#[inline]
+pub fn new_cjk_compat_variants<I: Iterator<Item = char>>(iter: I) -> Replacements<I> {
+    Replacements { iter, buffer: None }
+}
+
+impl<I: Iterator<Item = char>> Iterator for Replacements<I> {
+    type Item = char;
+
+    #[inline]
+    fn next(&mut self) -> Option<char> {
+        if let Some(c) = self.buffer.take() {
+            return Some(c);
+        }
+
+        match self.iter.next() {
+            Some(ch) => {
+                // At this time, the longest replacement sequence has length 2.
+                let mut buffer = ArrayVec::<[char; 2]>::new();
+                super::char::decompose_cjk_compat_variants(ch, |d| buffer.push(d));
+                self.buffer = buffer.get(1).copied();
+                Some(buffer[0])
+            }
+            None => None,
+        }
+    }
+
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        let (lower, _) = self.iter.size_hint();
+        (lower, None)
+    }
+}
+
+impl<I: Iterator<Item = char> + FusedIterator> FusedIterator for Replacements<I> {}
+
+impl<I: Iterator<Item = char> + Clone> fmt::Display for Replacements<I> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        for c in self.clone() {
+            f.write_char(c)?;
+        }
+        Ok(())
+    }
+}
-- 
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