private static void assignDescriptionsToASCIINums() {
		descriptionToAsciiInt = new HashMap<String, Integer>();
		descriptionToAsciiInt.put("[NUL]", 0);
		descriptionToAsciiInt.put("[SOH]", 1);
		descriptionToAsciiInt.put("[STX]", 2);
		descriptionToAsciiInt.put("[ETX]", 3);
		descriptionToAsciiInt.put("[EOT]", 4);
		descriptionToAsciiInt.put("[ENQ]", 5);
		descriptionToAsciiInt.put("[ACK]", 6);
		descriptionToAsciiInt.put("[BEL]", 7);
		descriptionToAsciiInt.put("[BS]", 8);
		descriptionToAsciiInt.put("[HT]", 9);
		descriptionToAsciiInt.put("[LF]", 10);
		descriptionToAsciiInt.put("[VT]", 11);
		descriptionToAsciiInt.put("[FF]", 12);
		descriptionToAsciiInt.put("[CR]", 13);
		descriptionToAsciiInt.put("[SO]", 14);
		descriptionToAsciiInt.put("[SI]", 15);
		descriptionToAsciiInt.put("[DLE]", 16);
		descriptionToAsciiInt.put("[DC1]", 17);
		descriptionToAsciiInt.put("[DC2]", 18);
		descriptionToAsciiInt.put("[DC3]", 19);
		descriptionToAsciiInt.put("[DC4]", 20);
		descriptionToAsciiInt.put("[NAK]", 21);
		descriptionToAsciiInt.put("[SYN]", 22);
		descriptionToAsciiInt.put("[ETB]", 23);
		descriptionToAsciiInt.put("[CAN]", 24);
		descriptionToAsciiInt.put("[EM]", 25);
		descriptionToAsciiInt.put("[SUB]", 26);
		descriptionToAsciiInt.put("[ESC]", 27);
		descriptionToAsciiInt.put("[FS]", 28);
		descriptionToAsciiInt.put("[GS]", 29);
		descriptionToAsciiInt.put("[RS]", 30);
		descriptionToAsciiInt.put("[US]", 31);
		descriptionToAsciiInt.put("[SP]", 32);
		descriptionToAsciiInt.put("[DEL]", 127);
	}
Thresholds by string length.  Index represents string length (i.e., length 4 threshold
 is -2.71). StrLen > 100, use -6.3 as threshold.
 <p>
 The 'ngThresholds' array stores thresholds for strings shorter than the minimum string 
 length, even though they are not scored. This is a convenience so that we can use the 
 array to look up threshold by string length.
 <p>
 Set string lengths in range 0 - 3 to a threshold of 10 -- since scores are always negative, 
 there is no way they will be greater than 10!
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/string/NGramUtils.java