diff --git a/src/main/java/com/commafeed/backend/feed/EstimateDirection.java b/src/main/java/com/commafeed/backend/feed/EstimateDirection.java
index 58bf74d7..f2ca42f3 100644
--- a/src/main/java/com/commafeed/backend/feed/EstimateDirection.java
+++ b/src/main/java/com/commafeed/backend/feed/EstimateDirection.java
@@ -4,52 +4,45 @@ import java.util.regex.Pattern;
 
 /**
  * This code is copied and simplified from GWT
- * https://github.com/google-web-toolkit/gwt/blob/master/user/src/com/google/gwt/i18n/shared/BidiUtils.java
- * Released under Apache 2.0 license, credit of it goes to Google and please use GWT wherever possible instead of this
+ * https://github.com/google-web-toolkit/gwt/blob/master/user/src/com/google/gwt/i18n/shared/BidiUtils.java Released under Apache 2.0
+ * license, credit of it goes to Google and please use GWT wherever possible instead of this
  */
 class EstimateDirection {
-    private static final float RTL_DETECTION_THRESHOLD = 0.40f;
+	private static final float RTL_DETECTION_THRESHOLD = 0.40f;
 
-    private static volatile String LTR_CHARS =
-            "A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF" +
-                    "\u2C00-\uFB1C\uFDFE-\uFE6F\uFEFD-\uFFFF";
-    private static volatile String RTL_CHARS =
-            "\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC";
+	private static volatile String LTR_CHARS = "A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF"
+			+ "\u2C00-\uFB1C\uFDFE-\uFE6F\uFEFD-\uFFFF";
+	private static volatile String RTL_CHARS = "\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC";
 
-    private static final Pattern WORD_SEPARATOR_RE = Pattern.compile("\\s+");
-    private static final Pattern FIRST_STRONG_IS_RTL_RE =
-            Pattern.compile("^[^" + LTR_CHARS + "]*[" + RTL_CHARS + ']');
-    private static final Pattern IS_REQUIRED_LTR_RE = Pattern.compile("^http://.*");
-    private static final Pattern HAS_ANY_LTR_RE =
-            Pattern.compile("[" + LTR_CHARS + ']');
-    private static final Pattern HAS_NUMERALS_RE = Pattern.compile("\\d");
+	private static final Pattern WORD_SEPARATOR_RE = Pattern.compile("\\s+");
+	private static final Pattern FIRST_STRONG_IS_RTL_RE = Pattern.compile("^[^" + LTR_CHARS + "]*[" + RTL_CHARS + ']');
+	private static final Pattern IS_REQUIRED_LTR_RE = Pattern.compile("^http://.*");
+	private static final Pattern HAS_ANY_LTR_RE = Pattern.compile("[" + LTR_CHARS + ']');
 
-    private static boolean startsWithRtl(String str) {
-        return FIRST_STRONG_IS_RTL_RE.matcher(str).matches();
-    }
-    private static boolean hasAnyLtr(String str) {
-        return HAS_ANY_LTR_RE.matcher(str).matches();
-    }
+	private static boolean startsWithRtl(String str) {
+		return FIRST_STRONG_IS_RTL_RE.matcher(str).matches();
+	}
 
-    static boolean isRTL(String str) {
-        int rtlCount = 0;
-        int total = 0;
-        boolean hasWeaklyLtr = false;
-        String[] tokens = WORD_SEPARATOR_RE.split(str);
-        for (int i = 0; i < tokens.length; i++) {
-            String token = tokens[i];
-            if (startsWithRtl(token)) {
-                rtlCount++;
-                total++;
-            } else if (IS_REQUIRED_LTR_RE.matcher(token).matches()) {
-                hasWeaklyLtr = true;
-            } else if (hasAnyLtr(token)) {
-                total++;
-            } else if (HAS_NUMERALS_RE.matcher(token).matches()) {
-                hasWeaklyLtr = true;
-            }
-        }
+	private static boolean hasAnyLtr(String str) {
+		return HAS_ANY_LTR_RE.matcher(str).matches();
+	}
 
-        return total == 0 ? false : ((float) rtlCount / total > RTL_DETECTION_THRESHOLD ? true : false);
-    }
+	static boolean isRTL(String str) {
+		int rtlCount = 0;
+		int total = 0;
+		String[] tokens = WORD_SEPARATOR_RE.split(str);
+		for (int i = 0; i < tokens.length; i++) {
+			String token = tokens[i];
+			if (startsWithRtl(token)) {
+				rtlCount++;
+				total++;
+			} else if (IS_REQUIRED_LTR_RE.matcher(token).matches()) {
+				// do nothing
+			} else if (hasAnyLtr(token)) {
+				total++;
+			}
+		}
+
+		return total == 0 ? false : ((float) rtlCount / total > RTL_DETECTION_THRESHOLD ? true : false);
+	}
 }