Ignoring part of the text

[HamidMp]

Sometimes the text contains parts that we don't want to be compared. For example, on websites, the advertisements are constantly changing, but they are not important to us.
If there was an option (regular expression search) to ignore the comparison of these parts, it will be very good

[jfcherng]

You can do it on your side. I am not going to implement this. PR is welcome though.