Search Haskell source code from the command line.
Powered by ghc-exactprint.
$> hgrep
Usage: hgrep [-e|--regex] EXPRESSION [FILE]hgrep requires an expression and a set of files to search across.
An expression can be one of
- The name of a type, e.g.
FooBar - The name of an expression, e.g.
foo - A regular expression (via the
-eflag), e.g.-e Foo$
Each file will be parsed and searched. Results will be printed to the console, with syntax highlighting where possible.
You can use cabal or stack to install, but you may need libpcre. In case you don't have it:
sudo apt update
sudo apt install libpcre3-devsudo dnf update
sudo dnf install pcre-devel
nix-env -i pcre
git clone https://github.com/thumphries/hgrep.git
cd !$
stack install
git clone https://github.com/thumphries/hgrep.git
cd !$
cabal new-build
git clone https://github.com/thumphries/hgrep.git
cd !$
mafia build
git clone https://github.com/thumphries/hgrep.git
cd !$
nix-build -E 'with import <nixpkgs> {}; haskellPackages.callCabal2nix "hgrep" ./. {}'
$> hgrep main main/hgrep.hs
main/hgrep.hs:16:1-13
-- | Run the program.
main :: IO ()
main/hgrep.hs:(17,1)-(18:27)
main = do
putStrLn "Hello, world!"$> hgrep PrintOpts src/**/*.hs
src/Language/Haskell/HGrep/Internal/Data.hs:(40,1)-(42,28)
data PrintOpts = PrintOpts {
poColourOpts :: ColourOpts
} deriving (Eq, Ord, Show)$> hgrep -e 'Opts$' src/**/*.hs
src/Language/Haskell/HGrep/Internal/Data.hs:(57,1)-(59,28)
data PrintOpts = PrintOpts {
poColourOpts :: ColourOpts
} deriving (Eq, Ord, Show)
src/Language/Haskell/HGrep/Internal/Data.hs:(61,1)-(64,26)
defaultPrintOpts :: PrintOpts
src/Language/Haskell/HGrep/Internal/Data.hs:(67,1)-(70,5)
defaultPrintOpts =
PrintOpts {
poColourOpts = DefaultColours
}