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search for haskell functions in libraries by providing input/output examples
Haskell
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HaltaVista
LICENSE
Main.hs
README.md
Setup.hs
haltavista.cabal

README.md

Haltavista

Search for haskell functions in installed libraries by providing input/output examples.

Requirements

Hoogle has to be installed.

Usage

Example session 1:

brauner@worf:~$ haltavista
2 2 4
<EOF>

Prelude (*)
Prelude (+)
Prelude (^)

Example session 2 (refining search 1):

brauner@worf:~$ haltavista
2 2 4
1 2 3
<EOF>

Prelude (+)

Example session 3 (higher-order functions):

brauner@worf:~$ haltavista 
(+1) (+2) (1,1) (2,3)
<EOF>

Data.Graph.Inductive.Query.Monad (><)

Credits

Under the hood, uses:

  • hint for type inference;
  • hoogle to get a list of candidate functions;
  • hint for testing.

Hoogle calling facility has been copy-pasted (and later modified) from the Yi project.

Todo

  • catch stack overflows (is that possible?)
  • catch other errors (should do but doesn't for some reason)
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