    -----------------------------------------------------------------------------
    -- |
    -- Module      :  XMonad.Prompt.Email
    -- Copyright   :  (c) 2007 Brent Yorgey
    -- License     :  BSD-style (see LICENSE)
    --
    -- Maintainer  :  <byorgey@gmail.com>
    -- Stability   :  stable
    -- Portability :  unportable
    --
    -- A prompt for sending quick, one-line emails, via the standard GNU
    -- \'mail\' utility (which must be in your $PATH).  This module is
    -- intended mostly as an example of using "XMonad.Prompt.Input" to
    -- build an action requiring user input.
    --
    -----------------------------------------------------------------------------

    module XMonad.Prompt.Email (
                                -- * Usage
                                -- $usage
                                emailPrompt
                               ) where

    import XMonad.Core
    import XMonad.Util.Run
    import XMonad.Prompt
    import XMonad.Prompt.Input

    -- $usage
    --
    -- You can use this module by importing it, along with
    -- "XMonad.Prompt", into your ~\/.xmonad\/xmonad.hs file:
    --
    -- > import XMonad.Prompt
    -- > import XMonad.Prompt.Email
    --
    -- and adding an appropriate keybinding, for example:
    --
    -- >  , ((modm .|. controlMask, xK_e), emailPrompt defaultXPConfig addresses)
    --
    -- where @addresses@ is a list of email addresses that should
    -- autocomplete, for example:
    --
    -- > addresses = ["me@me.com", "mr@big.com", "tom.jones@foo.bar"]
    --
    -- You can still send email to any address, but sending to these
    -- addresses will be faster since you only have to type a few
    -- characters and then hit \'tab\'.
    --
    -- For detailed instructions on editing your key bindings, see
    -- "XMonad.Doc.Extending#Editing_key_bindings".

    -- | Prompt the user for a recipient, subject, and body, and send an
    --   email via the GNU \'mail\' utility.  The second argument is a list
    --   of addresses for autocompletion.
    emailPrompt :: XPConfig -> [String] -> X ()
    emailPrompt c addrs =
        inputPromptWithCompl c "To" (mkComplFunFromList addrs) ?+ \to ->
        inputPrompt c "Subject" ?+ \subj ->
        inputPrompt c "Body" ?+ \body ->
        io $ runProcessWithInput "mail" ["-s", subj, to] (body ++ "\n")
             >> return ()