Back at the start of the year, I took the F# parser combinator library FParsec out for a spin, writing an extended Small Basic compiler and later a similar parser for a subset of C#. Previously I’d been using hand rolled parsers, for projects like TickSpec, a .Net BDD library, and Cellz, an open source spreadsheet. With FParsec you can construct a parser relatively rapidly and easily using the powerful built-in functions and F# interactive for quick feedback. FParsec has been used in a number of interesti[...]