private String bufferVariables(String contents) {
		for (int i = 0; i < contents.length() - 1; i++) {
			if (contents.charAt(i + 1) == '-' && (contents.charAt(i) != 'E' && ("" + contents.charAt(i)).matches("[xyz0123456789)-]"))) {
				contents = contents.substring(0, i + 1) + " " + contents.substring(i + 1, contents.length());
			}
		}
		return contents;
	}