How to highlight a field text in RTF template for BI Publisher report?

Hello Team,

We have a requirement to highlight middle of the Field A value (10 digits) if the Field B is Yes.

Example Field A value is "ABFDFD1212121SD"

and Field B is "Yes"/ "No"

If the Field B is Yes then highlight the Field A = only the middle 10 digits - "AB FDFD121212 1SD"

else

no need to highlight and it should display as in XML.

Thanks,

Prem