Shameless plug: Filter Forge, http://www.filterforge.com http://www.filterforge.com We even added (limited) loops and recursion in v4.0: http://www.filterforge

Shameless plug: Filter Forge, http://www.filterforge.com http://www.filterforge.com We even added (limited) loops and recursion in v4.0: http://www.filterforge.com/features/version4/loops-and-recursions.html http://www.filterforge.com/features/version4/loops-and-recur...