Use var/interpolation in Regex

Hello,
I’d like to use variable/interpolation in regex (<input.CODE>), but since there are characters like <> in my regex pattern, I don’t know how I can do that, escape characters maybe ?
Here is the following pattern :
[0-9][0-9]/[0-9][0-9]/[0-9][0-9]\s+</td>\s+<td class="aaa-history__cell aaa-history__col-ID"><input.CODE>
Any help would be appreciated.
Thanks !

Still struggling, sadly :frowning: