I entered those two lines in the two fields:
The parent classes: by-author
The regular expressions: <span class=”sep”(.*?)/span>
And it got rid of the by in the posted by line. There’s still a by in the category line: This entry was posted in (category) by
Sorry. My link didn’t post last time. I’ll just paste it in this time without trying to make it a live link:
https://cmacneil.com/art/2005/05/23/red-house-no-18/