linter

codex-rs/tui/src/app.rs

@@ -51,9 +51,15 @@ fn strip_surrounding_quotes(s: &str) -> String {
         return trimmed.to_string();
     }
 
-    let mut chars = trimmed.chars();
-    let first = chars.next().unwrap();
-    let last = trimmed.chars().last().unwrap();
+    // Safely obtain the first and last characters without unwraps.
+    let (first, last) = {
+        let mut chs = trimmed.chars();
+        match (chs.next(), chs.next_back()) {
+            (Some(f), Some(l)) => (f, l),
+            (Some(f), None) => (f, f),
+            _ => return trimmed.to_string(),
+        }
+    };
 
     let is_valid_quote = match first {
         '"' | '\'' | '“' | '‘' => first == last,

codex-rs/tui/src/bottom_pane/model_selection_view.rs

@@ -203,7 +203,7 @@ fn fuzzy_match(haystack: &str, needle: &str) -> Option<(Vec<usize>, i32)> {
 
     for ch in n_lower.chars() {
         let mut found = None;
-        while let Some((i, hc)) = h_iter.next() {
+        for (i, hc) in h_iter.by_ref() {
             if hc == ch {
                 found = Some(i);
                 break;

codex-rs/tui/src/chatwidget.rs

@@ -531,7 +531,7 @@ impl ChatWidget<'_> {
         // Emit a lightweight event in the conversation log so the change is visible.
         if changed {
             self.conversation_history
-                .add_background_event(format!("Set model to {}.", model));
+                .add_background_event(format!("Set model to {model}."));
             self.emit_last_history_entry();
         }