Add additional memories filename regex

src/memories.rs

@@ -144,9 +144,9 @@ fn extract_date_from_filename(filename: &str) -> Option<DateTime<FixedOffset>> {
         return Some(captures);
     }
 
-    // Screenshot format: Screenshot_20140601-204450.png
+    // Screenshot format: Screenshot_20140601[_-]204450.png
     if let Some(captures) =
-        regex::Regex::new(r"Screenshot_(\d{4})(\d{2})(\d{2})-(\d{2})(\d{2})(\d{2})")
+        regex::Regex::new(r"Screenshot_(\d{4})(\d{2})(\d{2})[_-](\d{2})(\d{2})(\d{2})")
             .ok()?
             .captures(filename)
             .and_then(|c| build_date_from_ymd_capture(&c))
@@ -426,6 +426,19 @@ mod tests {
         assert_eq!(date_time.second(), 50);
     }
 
+    #[test]
+    fn test_extract_date_from_filename_screenshot_underscores_format() {
+        let filename = "Screenshot_20140601_204450.png";
+        let date_time = extract_date_from_filename(filename).unwrap();
+
+        assert_eq!(date_time.year(), 2014);
+        assert_eq!(date_time.month(), 6);
+        assert_eq!(date_time.day(), 1);
+        assert_eq!(date_time.hour(), 20);
+        assert_eq!(date_time.minute(), 44);
+        assert_eq!(date_time.second(), 50);
+    }
+
     #[test]
     fn test_extract_date_from_filename_dash_format() {
         let filename = "2015-01-09_02-15-15.jpg";