code: public Rule SingleQuoted() {
          return NodeSequence(
                  !Character.isLetter(getContext().getInputBuffer().charAt(getContext().getCurrentIndex() - 1)),
                  '\'',
                  push(new QuotedNode(QuotedNode.Type.Single)),
                  OneOrMore(TestNot(SingleQuoteEnd()), Inline(), addAsChild()),
                  SingleQuoteEnd()
          );
      }
docs: ************* QUOTES ****************