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Location: kallithea/rhodecode/public/js/mode/haskell/index.html - annotation

Bradley M. Kuhn
Add mousetrap.js file from Mousetrap 1.4.5, under the Apache license.

The file was download and verified via these commands:
$ git clone https://github.com/ccampbell/mousetrap.git
$ cd mousetrap; git checkout 1.4.5

The file in that repository named mousetrap.js is exactly the same one that
appeared in RhodeCode 2.2.5 in changeset c8d3c0d61d95.

The mousetrap.js states clearly that it is licensed under Apache-2.0.
<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CodeMirror: Haskell mode</title>
    <link rel="stylesheet" href="../../lib/codemirror.css">
    <script src="../../lib/codemirror.js"></script>
    <script src="../../addon/edit/matchbrackets.js"></script>
    <script src="haskell.js"></script>
    <link rel="stylesheet" href="../../theme/elegant.css">
    <style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
    <link rel="stylesheet" href="../../doc/docs.css">
  </head>
  <body>
    <h1>CodeMirror: Haskell mode</h1>

<form><textarea id="code" name="code">
module UniquePerms (
    uniquePerms
    )
where

-- | Find all unique permutations of a list where there might be duplicates.
uniquePerms :: (Eq a) => [a] -> [[a]]
uniquePerms = permBag . makeBag

-- | An unordered collection where duplicate values are allowed,
-- but represented with a single value and a count.
type Bag a = [(a, Int)]

makeBag :: (Eq a) => [a] -> Bag a
makeBag [] = []
makeBag (a:as) = mix a $ makeBag as
  where
    mix a []                        = [(a,1)]
    mix a (bn@(b,n):bs) | a == b    = (b,n+1):bs
                        | otherwise = bn : mix a bs

permBag :: Bag a -> [[a]]
permBag [] = [[]]
permBag bs = concatMap (\(f,cs) -> map (f:) $ permBag cs) . oneOfEach $ bs
  where
    oneOfEach [] = []
    oneOfEach (an@(a,n):bs) =
        let bs' = if n == 1 then bs else (a,n-1):bs
        in (a,bs') : mapSnd (an:) (oneOfEach bs)

    apSnd f (a,b) = (a, f b)
    mapSnd = map . apSnd
</textarea></form>

    <script>
      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
        lineNumbers: true,
        matchBrackets: true,
        theme: "elegant"
      });
    </script>

    <p><strong>MIME types defined:</strong> <code>text/x-haskell</code>.</p>
  </body>
</html>