@Override
	public boolean isValidInput() {
		return isValidInput;
	}
Construct an invalid matcher from invalid input text or partial input text.
@param errorMessage the message describing why this matcher is invalid
@param isValidInput return true if the reason this is invalid is simply that the input
text is not complete. For example, the user types "-" as they are starting to input
a negative number.
Ghidra/Features/Base/src/main/java/ghidra/features/base/memsearch/matcher/InvalidByteMatcher.java