Function truncate_string

atomic-cli/src/commands/log/command.rs:563–573

Truncate a string to a maximum length, adding ellipsis if needed. This function handles Unicode characters correctly by counting grapheme clusters rather than bytes, ensuring we never split a multi-byte character. # Arguments `s` - The string to truncate `max_len` - Maximum character length including ellipsis # Returns The truncated string. # Example ```rust,ignore assert_eq!(truncate_strin

(s: &str, max_len: usize)

/// assert_eq!(truncate_string("Short", 8), "Short");
/// ```
pub fn truncate_string(s: &str, max_len: usize) -> String {
    let char_count = s.chars().count();
    if char_count <= max_len {
        s.to_string()
    } else if max_len <= 3 {
        s.chars().take(max_len).collect()
    } else {
        let truncated: String = s.chars().take(max_len - 3).collect();
        format!("{}...", truncated)
    }
}

/// Format an author for display from an `Author` struct.
///