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<!doctype html>
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<html>
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<head>
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<title>CodeMirror: LiveScript mode</title>
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<link rel="stylesheet" href="../../lib/codemirror.css">
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<script src="../../lib/codemirror.js"></script>
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<script src="livescript.js"></script>
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<style>.CodeMirror {font-size: 80%;border-top: 1px solid silver; border-bottom: 1px solid silver;}</style>
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<link rel="stylesheet" href="../../doc/docs.css">
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<link rel="stylesheet" href="../../theme/solarized.css">
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</head>
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<body>
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<h1>CodeMirror: LiveScript mode</h1>
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<form><textarea id="code" name="code">
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# LiveScript mode for CodeMirror
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# The following script, prelude.ls, is used to
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# demonstrate LiveScript mode for CodeMirror.
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# https://github.com/gkz/prelude-ls
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export objToFunc = objToFunc = (obj) ->
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(key) -> obj[key]
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export each = (f, xs) -->
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if typeof! xs is \Object
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for , x of xs then f x
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else
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for x in xs then f x
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xs
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export map = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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type = typeof! xs
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if type is \Object
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{[key, f x] for key, x of xs}
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else
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result = [f x for x in xs]
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if type is \String then result * '' else result
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export filter = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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type = typeof! xs
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if type is \Object
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{[key, x] for key, x of xs when f x}
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else
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result = [x for x in xs when f x]
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if type is \String then result * '' else result
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export reject = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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type = typeof! xs
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if type is \Object
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{[key, x] for key, x of xs when not f x}
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else
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result = [x for x in xs when not f x]
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if type is \String then result * '' else result
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export partition = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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type = typeof! xs
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if type is \Object
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passed = {}
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failed = {}
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for key, x of xs
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(if f x then passed else failed)[key] = x
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else
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passed = []
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failed = []
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for x in xs
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(if f x then passed else failed)push x
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if type is \String
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passed *= ''
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failed *= ''
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[passed, failed]
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export find = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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if typeof! xs is \Object
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for , x of xs when f x then return x
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else
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for x in xs when f x then return x
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void
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export head = export first = (xs) ->
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return void if not xs.length
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xs.0
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export tail = (xs) ->
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return void if not xs.length
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xs.slice 1
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export last = (xs) ->
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return void if not xs.length
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xs[*-1]
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export initial = (xs) ->
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return void if not xs.length
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xs.slice 0 xs.length - 1
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export empty = (xs) ->
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if typeof! xs is \Object
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for x of xs then return false
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return yes
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not xs.length
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export values = (obj) ->
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[x for , x of obj]
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export keys = (obj) ->
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[x for x of obj]
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export len = (xs) ->
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xs = values xs if typeof! xs is \Object
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xs.length
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export cons = (x, xs) -->
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if typeof! xs is \String then x + xs else [x] ++ xs
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export append = (xs, ys) -->
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if typeof! ys is \String then xs + ys else xs ++ ys
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export join = (sep, xs) -->
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xs = values xs if typeof! xs is \Object
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xs.join sep
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export reverse = (xs) ->
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if typeof! xs is \String
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then (xs / '')reverse! * ''
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else xs.slice!reverse!
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export fold = export foldl = (f, memo, xs) -->
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if typeof! xs is \Object
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for , x of xs then memo = f memo, x
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else
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for x in xs then memo = f memo, x
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memo
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export fold1 = export foldl1 = (f, xs) --> fold f, xs.0, xs.slice 1
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export foldr = (f, memo, xs) --> fold f, memo, xs.slice!reverse!
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export foldr1 = (f, xs) -->
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xs.=slice!reverse!
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fold f, xs.0, xs.slice 1
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export unfoldr = export unfold = (f, b) -->
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if (f b)?
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[that.0] ++ unfoldr f, that.1
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else
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[]
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export andList = (xs) ->
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for x in xs when not x
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return false
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true
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export orList = (xs) ->
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for x in xs when x
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return true
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false
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export any = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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for x in xs when f x
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return yes
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no
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export all = (f, xs) -->
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f = objToFunc f if typeof! f isnt \Function
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for x in xs when not f x
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return no
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yes
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export unique = (xs) ->
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result = []
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if typeof! xs is \Object
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for , x of xs when x not in result then result.push x
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else
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for x in xs when x not in result then result.push x
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if typeof! xs is \String then result * '' else result
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export sort = (xs) ->
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xs.concat!sort (x, y) ->
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| x > y => 1
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| x < y => -1
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| _ => 0
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export sortBy = (f, xs) -->
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return [] unless xs.length
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xs.concat!sort f
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export compare = (f, x, y) -->
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| (f x) > (f y) => 1
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| (f x) < (f y) => -1
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| otherwise => 0
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export sum = (xs) ->
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result = 0
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if typeof! xs is \Object
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for , x of xs then result += x
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else
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for x in xs then result += x
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result
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export product = (xs) ->
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result = 1
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if typeof! xs is \Object
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for , x of xs then result *= x
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else
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for x in xs then result *= x
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result
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export mean = export average = (xs) -> (sum xs) / len xs
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export concat = (xss) -> fold append, [], xss
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export concatMap = (f, xs) --> fold ((memo, x) -> append memo, f x), [], xs
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export listToObj = (xs) ->
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{[x.0, x.1] for x in xs}
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export maximum = (xs) -> fold1 (>?), xs
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export minimum = (xs) -> fold1 (<?), xs
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export scan = export scanl = (f, memo, xs) -->
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last = memo
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if typeof! xs is \Object
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then [memo] ++ [last = f last, x for , x of xs]
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else [memo] ++ [last = f last, x for x in xs]
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export scan1 = export scanl1 = (f, xs) --> scan f, xs.0, xs.slice 1
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export scanr = (f, memo, xs) -->
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xs.=slice!reverse!
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scan f, memo, xs .reverse!
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export scanr1 = (f, xs) -->
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xs.=slice!reverse!
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scan f, xs.0, xs.slice 1 .reverse!
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export replicate = (n, x) -->
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result = []
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i = 0
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while i < n, ++i then result.push x
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result
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export take = (n, xs) -->
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| n <= 0
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if typeof! xs is \String then '' else []
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| not xs.length => xs
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| otherwise => xs.slice 0, n
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export drop = (n, xs) -->
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| n <= 0 => xs
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| not xs.length => xs
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| otherwise => xs.slice n
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export splitAt = (n, xs) --> [(take n, xs), (drop n, xs)]
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export takeWhile = (p, xs) -->
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return xs if not xs.length
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p = objToFunc p if typeof! p isnt \Function
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result = []
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for x in xs
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break if not p x
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result.push x
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if typeof! xs is \String then result * '' else result
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export dropWhile = (p, xs) -->
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return xs if not xs.length
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p = objToFunc p if typeof! p isnt \Function
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i = 0
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for x in xs
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break if not p x
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++i
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drop i, xs
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export span = (p, xs) --> [(takeWhile p, xs), (dropWhile p, xs)]
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export breakIt = (p, xs) --> span (not) << p, xs
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export zip = (xs, ys) -->
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result = []
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for zs, i in [xs, ys]
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for z, j in zs
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result.push [] if i is 0
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result[j]?push z
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result
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export zipWith = (f,xs, ys) -->
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f = objToFunc f if typeof! f isnt \Function
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if not xs.length or not ys.length
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[]
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else
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[f.apply this, zs for zs in zip.call this, xs, ys]
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export zipAll = (...xss) ->
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result = []
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for xs, i in xss
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for x, j in xs
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result.push [] if i is 0
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result[j]?push x
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result
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export zipAllWith = (f, ...xss) ->
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f = objToFunc f if typeof! f isnt \Function
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if not xss.0.length or not xss.1.length
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[]
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else
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[f.apply this, xs for xs in zipAll.apply this, xss]
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export compose = (...funcs) ->
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->
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args = arguments
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for f in funcs
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args = [f.apply this, args]
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args.0
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export curry = (f) ->
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curry$ f # using util method curry$ from livescript
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export id = (x) -> x
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export flip = (f, x, y) --> f y, x
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export fix = (f) ->
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( (g, x) -> -> f(g g) ...arguments ) do
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(g, x) -> -> f(g g) ...arguments
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export lines = (str) ->
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return [] if not str.length
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str / \\n
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export unlines = (strs) -> strs * \\n
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export words = (str) ->
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return [] if not str.length
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str / /[ ]+/
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export unwords = (strs) -> strs * ' '
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export max = (>?)
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export min = (<?)
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export negate = (x) -> -x
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export abs = Math.abs
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export signum = (x) ->
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| x < 0 => -1
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| x > 0 => 1
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| otherwise => 0
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export quot = (x, y) --> ~~(x / y)
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export rem = (%)
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export div = (x, y) --> Math.floor x / y
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export mod = (%%)
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export recip = (1 /)
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export pi = Math.PI
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export tau = pi * 2
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export exp = Math.exp
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export sqrt = Math.sqrt
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# changed from log as log is a
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# common function for logging things
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export ln = Math.log
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export pow = (^)
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export sin = Math.sin
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export tan = Math.tan
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export cos = Math.cos
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export asin = Math.asin
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export acos = Math.acos
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export atan = Math.atan
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export atan2 = (x, y) --> Math.atan2 x, y
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# sinh
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# tanh
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# cosh
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# asinh
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# atanh
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# acosh
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export truncate = (x) -> ~~x
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export round = Math.round
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export ceiling = Math.ceil
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export floor = Math.floor
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export isItNaN = (x) -> x isnt x
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export even = (x) -> x % 2 == 0
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export odd = (x) -> x % 2 != 0
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export gcd = (x, y) -->
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x = Math.abs x
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y = Math.abs y
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until y is 0
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z = x % y
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x = y
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y = z
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x
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export lcm = (x, y) -->
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Math.abs Math.floor (x / (gcd x, y) * y)
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# meta
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export installPrelude = !(target) ->
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unless target.prelude?isInstalled
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target <<< out$ # using out$ generated by livescript
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target <<< target.prelude.isInstalled = true
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export prelude = out$
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</textarea></form>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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theme: "solarized light",
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lineNumbers: true
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});
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</script>
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<p><strong>MIME types defined:</strong> <code>text/x-livescript</code>.</p>
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<p>The LiveScript mode was written by Kenneth Bentley (<a href="LICENSE">license</a>).</p>
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</body>
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</html>
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