@Override
		public char charAt(int index) {
			byte b = byteSequence.getByte(index);
			return (char) (b & 0xff);
		}
Class for converting byte sequences into a {@link CharSequence} that can be used by
the java regular expression engine
Ghidra/Features/Base/src/main/java/ghidra/features/base/memsearch/matcher/RegExByteMatcher.java