Which macro code can be used to support gliffy diagrams in XWiki?
A quick google search for “XWiki gliffy” provides this answer: https://extensions.xwiki.org/xwiki/bin/view/Extension/Diagram%20Application
EDIT: it points to https://store.xwiki.com/xwiki/bin/view/Extension/DiagramApplication for the gliffy import feature.
In other words, there’s no gliffy extension for XWiki. But there are other diagram extensions.