1 files changed, 24 insertions, 0 deletions
diff --git a/src/util/format.rs b/src/util/format.rs
index 3079840..3a9bc54 100644
--- a/src/util/format.rs
+++ b/src/util/format.rs
@@ -26,3 +26,27 @@ pub fn mtime_to_string(mtime: time::SystemTime) -> String {
     let datetime: chrono::DateTime<chrono::offset::Local> = mtime.into();
     datetime.format(MTIME_FORMATTING).to_string()
 }
+
+pub fn format_tab_bar_title_string(
+    max_len: usize,
+    number: Option<usize>,
+    title: impl Into<String>,
+) -> String {
+    let title: String = title.into();
+
+    if let Some(number) = number {
+        if title.len() > max_len {
+            format!(
+                "{}: {}…",
+                number + 1,
+                title.chars().take(max_len - 1).collect::<String>()
+            )
+        } else {
+            format!("{}: {}", number + 1, title)
+        }
+    } else if title.len() > max_len {
+        format!("{}…", title.chars().take(max_len - 1).collect::<String>())
+    } else {
+        title.to_string()
+    }
+}