A neat response to the same problem posted yesterday: http://akkartik.name/post/wart-layers http://akkartik.name/post/wart-layers Basically, layers with numbe

A neat response to the same problem posted yesterday: http://akkartik.name/post/wart-layers http://akkartik.name/post/wart-layers Basically, layers with numbers and preprocessor directives to inject (tangle) code in the proper places without worrying too much about language abstractions.