public static boolean isControlCharacterOrBackslash(int codePoint) {
		return (0 <= codePoint && codePoint < Character.MIN_SUPPLEMENTARY_CODE_POINT) &&
			isControlCharacterOrBackslash((char) codePoint);
	}
Returns true if the given codePoint (ie. full unicode 32bit character) is a special
character. For example a '\n' or '\\'. A value of 0 is not considered special for this
purpose as it is handled separately because it has more varied use cases.

@param codePoint the codePoint (ie. character), see {@link String#codePointAt(int)}
@return true if the given character is a special character
Ghidra/Framework/Generic/src/main/java/ghidra/util/StringUtilities.java