Hi, This package is to be used with hsc2hs. (hsc2hs is called automatically if you use Cabal.) It's a self-contained set of macros used to create a Haskell wrap for a C interface. They follow the idea that it's better to have a C-like wrap code first and then write Haskell-like code on top of that than going directly from C to Haskell style.
Hackage link: http://hackage.haskell.org/package/bindings-DSL Wiki documentation: http://bitbucket.org/mauricio/bindings-dsl The fancy 'domain specific language' comes from 'binding-SDL' macros hability to describe a C interface. Instead of writing Haskell or preprocessor code, you can use 'bindings-DSL' macros to describe the interface you want to wrap without knowledge of how that description translates to preprocessor or Haskell code. Suppose, for instance, you have the following C struct: struct example_struct{ int n; struct example_struct *p; } It will be described like this: #starttype struct example_struct #field n , CInt #field p , Ptr <example_struct> #stoptype and this gives you a Haskell data type (automatically named C'example_struct) with the same fields and Storable instantiation. Here is a bigger example, with structs, macros, functions and global variables. Suppose you want to wrap this: http://git.savannah.gnu.org/cgit/gsl.git/tree/multimin/gsl_multimin.h Then this is how your 'bindings-DSL' code will look like: http://bitbucket.org/mauricio/bindings-gsl/src/tip/src/Bindings/Gsl/MultidimensionalMinimization.hsc That code translates to these Haskell declarations: http://hackage.haskell.org/packages/archive/bindings-gsl/0.1.1.6/doc/html/Bindings-Gsl-MultidimensionalMinimization.html 'bindings-DSL' came from previous 'bindings-common' package. It started as an effort to have many Haskell interfaces to good libraries available on Hackage, and came to be a language to support writing such interfaces easily and reliably. Hope it's usefull to you. Best, Maurício _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
