Add Hyphen support from PropList.txt.

src/include/ucd/ucd.h

 	UCD_PROPERTY_BIDI_CONTROL = 0x0004, /**< @brief Bidi_Control */
 	UCD_PROPERTY_JOIN_CONTROL = 0x0008, /**< @brief Join_Control */
 	UCD_PROPERTY_DASH         = 0x0010, /**< @brief Dash */
+	UCD_PROPERTY_HYPHEN       = 0x0020, /**< @brief Hyphen */
 } ucd_property;
 
 /** @brief Return the properties of the specified codepoint.
 		Bidi_Control = UCD_PROPERTY_BIDI_CONTROL, /**< @brief Bidi_Control */
 		Join_Control = UCD_PROPERTY_JOIN_CONTROL, /**< @brief Join_Control */
 		Dash = UCD_PROPERTY_DASH, /**< @brief Dash */
+		Hyphen = UCD_PROPERTY_HYPHEN, /**< @brief Hyphen */
 	};
 
 	/** @brief Return the properties of the specified codepoint.

src/proplist.c

 {
 	switch (c & 0xFFFFFF00)
 	{
+	case 0x0000:
+		if (c == 0x00AD)                return UCD_PROPERTY_HYPHEN;
+		break;
 	case 0x0600:
 		if (c == 0x061C)                return UCD_PROPERTY_BIDI_CONTROL;
 		break;
 	switch (c & 0xFFFFFF00)
 	{
 	case 0x0000:
-		if (c == 0x002D)                return UCD_PROPERTY_DASH;
+		if (c == 0x002D)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		break;
 	case 0x0500:
-		if (c == 0x058A)                return UCD_PROPERTY_DASH;
+		if (c == 0x058A)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		if (c == 0x05BE)                return UCD_PROPERTY_DASH;
 		break;
 	case 0x1400:
 		if (c == 0x1400)                return UCD_PROPERTY_DASH;
 		break;
 	case 0x1800:
-		if (c == 0x1806)                return UCD_PROPERTY_DASH;
+		if (c == 0x1806)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		break;
 	case 0x2000:
-		if (c == 0x2010)                return UCD_PROPERTY_DASH;
-		if (c == 0x2011)                return UCD_PROPERTY_DASH | UCD_PROPERTY_NO_BREAK;
+		if (c == 0x2010)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
+		if (c == 0x2011)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN | UCD_PROPERTY_NO_BREAK;
 		if (c >= 0x2012 && c <= 0x2015) return UCD_PROPERTY_DASH;
 		break;
 	case 0x2E00:
-		if (c == 0x2E17)                return UCD_PROPERTY_DASH;
+		if (c == 0x2E17)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		if (c == 0x2E1A)                return UCD_PROPERTY_DASH;
 		if (c >= 0x2E3A && c <= 0x2E3B) return UCD_PROPERTY_DASH;
 		if (c == 0x2E40)                return UCD_PROPERTY_DASH;
 	case 0xFE00:
 		if (c >= 0xFE31 && c <= 0xFE32) return UCD_PROPERTY_DASH;
 		if (c == 0xFE58)                return UCD_PROPERTY_DASH;
-		if (c == 0xFE63)                return UCD_PROPERTY_DASH;
+		if (c == 0xFE63)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		break;
 	case 0xFF00:
-		if (c == 0xFF0D)                return UCD_PROPERTY_DASH;
+		if (c == 0xFF0D)                return UCD_PROPERTY_DASH | UCD_PROPERTY_HYPHEN;
 		break;
 	}
 	return 0;
 	case 0x2000:
 		if (c == 0x2053)                return UCD_PROPERTY_DASH;
 		break;
+	case 0x3000:
+		if (c == 0x30FB)                return UCD_PROPERTY_HYPHEN;
+		break;
+	case 0xFF00:
+		if (c == 0xFF65)                return UCD_PROPERTY_HYPHEN;
+		break;
 	}
 	return 0;
 }