--- /dev/null
+function filter_open(...)
+ buffer = ""
+ for i = 1, select("#", ...) do
+ buffer = buffer .. select(i, ...) .. " "
+ end
+end
+
+function filter_close()
+ html(buffer)
+ return 0
+end
+
+function filter_write(str)
+ buffer = buffer .. string.upper(str)
+end
+
+