Safe Haskell	None

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Synopsis

Documentation

map :: (a -> b) -> [a] -> [b]

map f xs is the list obtained by applying f to each element + of xs, i.e., +

 map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]
+ map f [x1, x2, ...] == [f x1, f x2, ...]
+

class IsString a where

Class for string-like datastructures; used by the overloaded string + extension (-foverloaded-strings in GHC). +

Methods

Instances

Arguments

:: FilePath	Filename of the executable (see `proc` for details) +
-> [String]	Arguments to pass to the executable +
-> Maybe FilePath	Optional path to the working directory +
-> Maybe [(String, String)]	Optional environment (otherwise inherit) +
-> IO (Handle, Handle, Handle, ProcessHandle)

Runs a raw command, and returns Handles that may be used to communicate + with the process via its stdin, stdout and stderr respectively. +

For example, to start a process and feed a string to its stdin: +

   (inp,out,err,pid) <- runInteractiveProcess "..."
+   forkIO (hPutStr inp str)
+

The Handles are initially in binary mode; if you need them to be + in text mode then use hSetBinaryMode. +