XmTextPasteLink(3) on Linux
The text fd9e08d9aa02, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A Text function that inserts a link to the clipboard selection "XmTextPasteLink" "Text functions" "XmTextPasteLink"