Yes, Prince XML is written in Mercury. I had mentioned this on HN a few times earlier: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=Prince%20

Yes, Prince XML is written in Mercury. I had mentioned this on HN a few times earlier: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=Prince%20xml%20mercury%20vram22&sort=byDate&type=all https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que... Apropos of the hn.algolia.com search used in the above link, it seems pretty good and accurate. I could put my HN user name into the text box along with words like prince and xml, and it worked right. Only returned comments by me. I did not have to put my name in a separate user name field. I'm guessing this a full-text search feature.