update `pandoc` data dir

pandoc/filters/current_date.lua

@@ -0,0 +1,12 @@
+SCRIPT_NAME = "current_date.lua"
+os.setlocale("C")
+
+return {
+  { Meta = function(m)
+    if m.date == nil then
+      os.setlocale(os.getenv("LANG"))
+      m.date = os.date("%c")
+      return m
+    end
+  end }
+}

pandoc/filters/link_headings.lua

@@ -0,0 +1,11 @@
+SCRIPT_NAME = "link_headings.lua"
+os.setlocale("C")
+
+local Link = pandoc.Link
+
+return {
+  { Header = function(h)
+    h.content = Link(h.content, ("#%s"):format(h.attr.identifier))
+    return h
+  end }
+}