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Blizzard uses/used XSLT for WoW.

• calmbonsai 1y ago
  Was that before/after the LUA adoption?
  • shakna 1y ago
    Before. And after. XSLT controls the styling, Lua the running functions. When Lua adjusts a visible thing, it generates XSLT. "FrameXML" is a thin Lua wrapper around the base XSLT.
    • calmbonsai 1y ago
      WoW...literally and figuratively! Thanks for background. That explains some error messages I got waaaaaay back in the day.