Pandoc filter to (poorly) fix links to images when exporting to docx

fix-image-links.lua

local function starts_with(str, start)
   return str:sub(1, #start) == start
end
function Image(el)
  if starts_with(el.identifier, "fig:") and starts_with(el.title, "fig:") then
    return pandoc.Image(pandoc.Span(el.caption, pandoc.Attr(el.identifier)), el.src, el.title, pandoc.Attr("", el.classes, el.attributes))
  end
end