Add ASCII_Hex_Digit support from PropList.txt.

src/include/ucd/ucd.h

 	UCD_PROPERTY_TERMINAL_PUNCTUATION = 0x00000080, /**< @brief Terminal_Punctuation PropList */
 	UCD_PROPERTY_OTHER_MATH           = 0x00000100, /**< @brief Other_Math PropList */
 	UCD_PROPERTY_HEX_DIGIT            = 0x00000200, /**< @brief Hex_Digit PropList */
+	UCD_PROPERTY_ASCII_HEX_DIGIT      = 0x00000400, /**< @brief ASCII_Hex_Digit PropList */
 } ucd_property;
 
 /** @brief Return the properties of the specified codepoint.
 		Terminal_Punctuation = UCD_PROPERTY_TERMINAL_PUNCTUATION, /**< @brief Terminal_Punctuation PropList */
 		Other_Math = UCD_PROPERTY_OTHER_MATH, /**< @brief Other_Math PropList */
 		Hex_Digit = UCD_PROPERTY_HEX_DIGIT, /**< @brief Hex_Digit PropList */
+		ASCII_Hex_Digit = UCD_PROPERTY_ASCII_HEX_DIGIT, /**< @brief ASCII_Hex_Digit PropList */
 	};
 
 	/** @brief Return the properties of the specified codepoint.

src/proplist.c

 	switch (c & 0xFFFFFF00)
 	{
 	case 0x0000:
-		if (c >= 0x0061 && c <= 0x0066) return UCD_PROPERTY_HEX_DIGIT;
+		if (c >= 0x0061 && c <= 0x0066) return UCD_PROPERTY_HEX_DIGIT | UCD_PROPERTY_ASCII_HEX_DIGIT;
 		break;
 	case 0x0300:
 		if (c >= 0x03D0 && c <= 0x03D2) return UCD_PROPERTY_OTHER_MATH; // Ll|Lu
 	switch (c & 0xFFFFFF00)
 	{
 	case 0x0000:
-		if (c >= 0x0041 && c <= 0x0046) return UCD_PROPERTY_HEX_DIGIT;
+		if (c >= 0x0041 && c <= 0x0046) return UCD_PROPERTY_HEX_DIGIT | UCD_PROPERTY_ASCII_HEX_DIGIT;
 		break;
 	case 0x0300:
 		if (c >= 0x03D0 && c <= 0x03D2) return UCD_PROPERTY_OTHER_MATH; // Ll|Lu
 	switch (c & 0xFFFFFF00)
 	{
 	case 0x0000:
-		if (c >= 0x0030 && c <= 0x0039) return UCD_PROPERTY_HEX_DIGIT;
+		if (c >= 0x0030 && c <= 0x0039) return UCD_PROPERTY_HEX_DIGIT | UCD_PROPERTY_ASCII_HEX_DIGIT;
 		break;
 	case 0xFF00:
 		if (c >= 0xFF10 && c <= 0xFF19) return UCD_PROPERTY_HEX_DIGIT;

tools/printdata.py

 	return None
 
 def properties(data):
-	props  =   0
-	props +=   1 * data.get('White_Space', 0)
-	props +=   2 * (decomposition_type(data, '<noBreak>') != None)
-	props +=   4 * data.get('Bidi_Control', 0)
-	props +=   8 * data.get('Join_Control', 0)
-	props +=  16 * data.get('Dash', 0)
-	props +=  32 * data.get('Hyphen', 0)
-	props +=  64 * data.get('Quotation_Mark', 0)
-	props += 128 * data.get('Terminal_Punctuation', 0)
-	props += 256 * data.get('Other_Math', 0)
-	props += 512 * data.get('Hex_Digit', 0)
+	props  =    0
+	props +=    1 * data.get('White_Space', 0)
+	props +=    2 * (decomposition_type(data, '<noBreak>') != None)
+	props +=    4 * data.get('Bidi_Control', 0)
+	props +=    8 * data.get('Join_Control', 0)
+	props +=   16 * data.get('Dash', 0)
+	props +=   32 * data.get('Hyphen', 0)
+	props +=   64 * data.get('Quotation_Mark', 0)
+	props +=  128 * data.get('Terminal_Punctuation', 0)
+	props +=  256 * data.get('Other_Math', 0)
+	props +=  512 * data.get('Hex_Digit', 0)
+	props += 1024 * data.get('ASCII_Hex_Digit', 0)
 	return props
 
 if __name__ == '__main__':