title: Replace string using regular expression in KETTLE
body: <p>I would like to use regular expression for replacing a certain pattern in the Kettle. For example, AAAA >5&lt; BBBB, I want to replace this with AAAA <sub>555</sub> BBBB. I know how to find the pattern, but I am not sure how to replace that with new string. The one thing I have to keep is that I have to find pattern together >&lt;, not separately like > or &lt; because there is another pattern &lt;5>. </p>