Made the unicode feature optional for inline highlighting

src/text/inline.rs

@@ -18,7 +18,17 @@ impl<'bufs, 's, T: DiffableStr + ?Sized> MultiLookup<'bufs, 's, T> {
         let mut seqs = Vec::new();
         for (string_idx, string) in strings.iter().enumerate() {
             let mut offset = 0;
-            for word in string.tokenize_unicode_words() {
+            let iter = {
+                #[cfg(feature = "unicode")]
+                {
+                    string.tokenize_unicode_words()
+                }
+                #[cfg(not(feature = "unicode"))]
+                {
+                    string.tokenize_words()
+                }
+            };
+            for word in iter {
                 seqs.push((word, string_idx, offset));
                 offset += word.len();
             }

src/text/mod.rs

@@ -485,6 +485,12 @@ impl<'old, 'new, 'bufs, T: DiffableStr + ?Sized + 'old + 'new> TextDiff<'old, 'n
     /// level diff on adjacent line replacements.  The exact behavior of
     /// this function with regards to how it detects those inline changes
     /// is currently not defined and will likely change over time.
+    ///
+    /// As of similar 1.2.0 the behavior of this function changes depending on
+    /// if the `unicode` feature is enabled or not.  It will prefer unicode word
+    /// splitting over word splitting depending on the feature flag.
+    ///
+    /// Requires the `inline` feature.
     #[cfg(feature = "inline")]
     pub fn iter_inline_changes<'x, 'slf>(
         &'slf self,