Hi There - I'm needing to find all instances of italics in a document and insert <i> before and after each instance, for example

First, love is a matter of choice. ‘Over all these

would become

First, <i>love is a matter of choice<i>. ‘Over all these

In addition to this, I want to be able to do the same with anything bold but to place <b> in front and at the end, but suspect this is a similar process

Can anyone assist in how to make that happen please
Thanks!