feat: add configurable sidebar metadata tokens

1 files changed, 64 insertions, 0 deletions

diff --git a/src/terminal/title.rs b/src/terminal/title.rs
new file mode 100644
index 00000000..32ba19c4
--- /dev/null
+++ b/src/terminal/title.rs
@@ -0,0 +1,64 @@
+const CLAUDE_ACTIVITY_GLYPHS: &str = "·✢✳✶✻✽";
+
+pub(crate) fn stripped_terminal_title(title: &str) -> Option<String> {
+    let title = title.trim();
+    if title.is_empty() {
+        return None;
+    }
+
+    let mut chars = title.char_indices();
+    let (_, first) = chars.next()?;
+    let after_first = &title[first.len_utf8()..];
+    let recognized =
+        matches!(first, '\u{2800}'..='\u{28ff}') || CLAUDE_ACTIVITY_GLYPHS.contains(first);
+    let stripped = if recognized
+        && (after_first.is_empty() || after_first.chars().next().is_some_and(char::is_whitespace))
+    {
+        after_first.trim()
+    } else {
+        title
+    };
+
+    (!stripped.is_empty()).then(|| stripped.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::stripped_terminal_title;
+
+    #[test]
+    fn strips_one_recognized_leading_activity_glyph() {
+        for title in ["⠋ task", "✳ task", "  ⠙   task  ", "✢ task", "✻ task"] {
+            assert_eq!(stripped_terminal_title(title).as_deref(), Some("task"));
+        }
+        assert_eq!(
+            stripped_terminal_title("⠋ ⠙ task").as_deref(),
+            Some("⠙ task")
+        );
+    }
+
+    #[test]
+    fn preserves_unrecognized_or_unbounded_symbols() {
+        for (title, expected) in [
+            ("★task", "★task"),
+            ("★ production", "★ production"),
+            ("✨ task", "✨ task"),
+            ("☼ status", "☼ status"),
+            ("@ task", "@ task"),
+            ("task ⠋ detail", "task ⠋ detail"),
+            ("[prod] task", "[prod] task"),
+        ] {
+            assert_eq!(stripped_terminal_title(title).as_deref(), Some(expected));
+        }
+    }
+
+    #[test]
+    fn preserves_unicode_text_and_elides_empty_results() {
+        assert_eq!(
+            stripped_terminal_title(" ⠋ 修复🙂标题 ").as_deref(),
+            Some("修复🙂标题")
+        );
+        assert_eq!(stripped_terminal_title("  "), None);
+        assert_eq!(stripped_terminal_title("⠋   "), None);
+    }
+}