Re: [Haskell-beginners] discover data constructor without pattern matching?

On 2011-12-01, at 5:47 PM, Ozgur Akgun wrote:

Hi,

On 1 December 2011 22:38, Philippe Sismondi wrote: Is it possible to discover the data constructor used to make a value without doing pattern matching?

Yes, it is.

constrName :: Data a => a -> String constrName = show . toConstr

http://hackage.haskell.org/packages/archive/base/latest/doc/html/Data-Data.h...

(You can derive Data for your data type using the language extension DeriveDataTypeable)

Hope this helps,

Wow, it sure does. Thanks a million.

Ozgur