@hackage transf0.5

Transf is functional text transformer and interpreter. It scans its input for guard tokens and passes everything between to transformation functions. Transformation functions are composed from a small set of combinators and may perform arbirary Haskell computation. Transf contains a full Haskell interpeter and can even interpret its input as Haskell. The main purpose of Transf is to allow the embedding of Domain-Specific Languages in plain text or Markdown files. For example one could use it with Diagrams as follows: > This is my file. Here is an image: > > ~~~diagram "A circle!" > circle <> stretchX 2 square > ~~~ Transf can then generate the image, and replace the source in the text file with the name of the actual image. It can also include the source. > This is my file. Here is an image: > > > You can supply your own file names. In the above example, the file name is a 32-bit hash of the source code.