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- <!doctype html>
- <html>
- <head>
- <meta charset="utf-8">
- <title>CodeMirror: CoffeeScript mode</title>
- <link rel="stylesheet" href="../../lib/codemirror.css">
- <script src="../../lib/codemirror.js"></script>
- <script src="coffeescript.js"></script>
- <style>.CodeMirror {border-top: 1px solid silver; border-bottom: 1px solid silver;}</style>
- <link rel="stylesheet" href="../../doc/docs.css">
- </head>
- <body>
- <h1>CodeMirror: CoffeeScript mode</h1>
- <form><textarea id="code" name="code">
- # CoffeeScript mode for CodeMirror
- # Copyright (c) 2011 Jeff Pickhardt, released under
- # the MIT License.
- #
- # Modified from the Python CodeMirror mode, which also is
- # under the MIT License Copyright (c) 2010 Timothy Farrell.
- #
- # The following script, Underscore.coffee, is used to
- # demonstrate CoffeeScript mode for CodeMirror.
- #
- # To download CoffeeScript mode for CodeMirror, go to:
- # https://github.com/pickhardt/coffeescript-codemirror-mode
- # **Underscore.coffee
- # (c) 2011 Jeremy Ashkenas, DocumentCloud Inc.**
- # Underscore is freely distributable under the terms of the
- # [MIT license](http://en.wikipedia.org/wiki/MIT_License).
- # Portions of Underscore are inspired by or borrowed from
- # [Prototype.js](http://prototypejs.org/api), Oliver Steele's
- # [Functional](http://osteele.com), and John Resig's
- # [Micro-Templating](http://ejohn.org).
- # For all details and documentation:
- # http://documentcloud.github.com/underscore/
- # Baseline setup
- # --------------
- # Establish the root object, `window` in the browser, or `global` on the server.
- root = this
- # Save the previous value of the `_` variable.
- previousUnderscore = root._
- ### Multiline
- comment
- ###
- # Establish the object that gets thrown to break out of a loop iteration.
- # `StopIteration` is SOP on Mozilla.
- breaker = if typeof(StopIteration) is 'undefined' then '__break__' else StopIteration
- #### Docco style single line comment (title)
- # Helper function to escape **RegExp** contents, because JS doesn't have one.
- escapeRegExp = (string) -> string.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1')
- # Save bytes in the minified (but not gzipped) version:
- ArrayProto = Array.prototype
- ObjProto = Object.prototype
- # Create quick reference variables for speed access to core prototypes.
- slice = ArrayProto.slice
- unshift = ArrayProto.unshift
- toString = ObjProto.toString
- hasOwnProperty = ObjProto.hasOwnProperty
- propertyIsEnumerable = ObjProto.propertyIsEnumerable
- # All **ECMA5** native implementations we hope to use are declared here.
- nativeForEach = ArrayProto.forEach
- nativeMap = ArrayProto.map
- nativeReduce = ArrayProto.reduce
- nativeReduceRight = ArrayProto.reduceRight
- nativeFilter = ArrayProto.filter
- nativeEvery = ArrayProto.every
- nativeSome = ArrayProto.some
- nativeIndexOf = ArrayProto.indexOf
- nativeLastIndexOf = ArrayProto.lastIndexOf
- nativeIsArray = Array.isArray
- nativeKeys = Object.keys
- # Create a safe reference to the Underscore object for use below.
- _ = (obj) -> new wrapper(obj)
- # Export the Underscore object for **CommonJS**.
- if typeof(exports) != 'undefined' then exports._ = _
- # Export Underscore to global scope.
- root._ = _
- # Current version.
- _.VERSION = '1.1.0'
- # Collection Functions
- # --------------------
- # The cornerstone, an **each** implementation.
- # Handles objects implementing **forEach**, arrays, and raw objects.
- _.each = (obj, iterator, context) ->
- try
- if nativeForEach and obj.forEach is nativeForEach
- obj.forEach iterator, context
- else if _.isNumber obj.length
- iterator.call context, obj[i], i, obj for i in [0...obj.length]
- else
- iterator.call context, val, key, obj for own key, val of obj
- catch e
- throw e if e isnt breaker
- obj
- # Return the results of applying the iterator to each element. Use JavaScript
- # 1.6's version of **map**, if possible.
- _.map = (obj, iterator, context) ->
- return obj.map(iterator, context) if nativeMap and obj.map is nativeMap
- results = []
- _.each obj, (value, index, list) ->
- results.push iterator.call context, value, index, list
- results
- # **Reduce** builds up a single result from a list of values. Also known as
- # **inject**, or **foldl**. Uses JavaScript 1.8's version of **reduce**, if possible.
- _.reduce = (obj, iterator, memo, context) ->
- if nativeReduce and obj.reduce is nativeReduce
- iterator = _.bind iterator, context if context
- return obj.reduce iterator, memo
- _.each obj, (value, index, list) ->
- memo = iterator.call context, memo, value, index, list
- memo
- # The right-associative version of **reduce**, also known as **foldr**. Uses
- # JavaScript 1.8's version of **reduceRight**, if available.
- _.reduceRight = (obj, iterator, memo, context) ->
- if nativeReduceRight and obj.reduceRight is nativeReduceRight
- iterator = _.bind iterator, context if context
- return obj.reduceRight iterator, memo
- reversed = _.clone(_.toArray(obj)).reverse()
- _.reduce reversed, iterator, memo, context
- # Return the first value which passes a truth test.
- _.detect = (obj, iterator, context) ->
- result = null
- _.each obj, (value, index, list) ->
- if iterator.call context, value, index, list
- result = value
- _.breakLoop()
- result
- # Return all the elements that pass a truth test. Use JavaScript 1.6's
- # **filter**, if it exists.
- _.filter = (obj, iterator, context) ->
- return obj.filter iterator, context if nativeFilter and obj.filter is nativeFilter
- results = []
- _.each obj, (value, index, list) ->
- results.push value if iterator.call context, value, index, list
- results
- # Return all the elements for which a truth test fails.
- _.reject = (obj, iterator, context) ->
- results = []
- _.each obj, (value, index, list) ->
- results.push value if not iterator.call context, value, index, list
- results
- # Determine whether all of the elements match a truth test. Delegate to
- # JavaScript 1.6's **every**, if it is present.
- _.every = (obj, iterator, context) ->
- iterator ||= _.identity
- return obj.every iterator, context if nativeEvery and obj.every is nativeEvery
- result = true
- _.each obj, (value, index, list) ->
- _.breakLoop() unless (result = result and iterator.call(context, value, index, list))
- result
- # Determine if at least one element in the object matches a truth test. Use
- # JavaScript 1.6's **some**, if it exists.
- _.some = (obj, iterator, context) ->
- iterator ||= _.identity
- return obj.some iterator, context if nativeSome and obj.some is nativeSome
- result = false
- _.each obj, (value, index, list) ->
- _.breakLoop() if (result = iterator.call(context, value, index, list))
- result
- # Determine if a given value is included in the array or object,
- # based on `===`.
- _.include = (obj, target) ->
- return _.indexOf(obj, target) isnt -1 if nativeIndexOf and obj.indexOf is nativeIndexOf
- return true for own key, val of obj when val is target
- false
- # Invoke a method with arguments on every item in a collection.
- _.invoke = (obj, method) ->
- args = _.rest arguments, 2
- (if method then val[method] else val).apply(val, args) for val in obj
- # Convenience version of a common use case of **map**: fetching a property.
- _.pluck = (obj, key) ->
- _.map(obj, (val) -> val[key])
- # Return the maximum item or (item-based computation).
- _.max = (obj, iterator, context) ->
- return Math.max.apply(Math, obj) if not iterator and _.isArray(obj)
- result = computed: -Infinity
- _.each obj, (value, index, list) ->
- computed = if iterator then iterator.call(context, value, index, list) else value
- computed >= result.computed and (result = {value: value, computed: computed})
- result.value
- # Return the minimum element (or element-based computation).
- _.min = (obj, iterator, context) ->
- return Math.min.apply(Math, obj) if not iterator and _.isArray(obj)
- result = computed: Infinity
- _.each obj, (value, index, list) ->
- computed = if iterator then iterator.call(context, value, index, list) else value
- computed < result.computed and (result = {value: value, computed: computed})
- result.value
- # Sort the object's values by a criterion produced by an iterator.
- _.sortBy = (obj, iterator, context) ->
- _.pluck(((_.map obj, (value, index, list) ->
- {value: value, criteria: iterator.call(context, value, index, list)}
- ).sort((left, right) ->
- a = left.criteria; b = right.criteria
- if a < b then -1 else if a > b then 1 else 0
- )), 'value')
- # Use a comparator function to figure out at what index an object should
- # be inserted so as to maintain order. Uses binary search.
- _.sortedIndex = (array, obj, iterator) ->
- iterator ||= _.identity
- low = 0
- high = array.length
- while low < high
- mid = (low + high) >> 1
- if iterator(array[mid]) < iterator(obj) then low = mid + 1 else high = mid
- low
- # Convert anything iterable into a real, live array.
- _.toArray = (iterable) ->
- return [] if (!iterable)
- return iterable.toArray() if (iterable.toArray)
- return iterable if (_.isArray(iterable))
- return slice.call(iterable) if (_.isArguments(iterable))
- _.values(iterable)
- # Return the number of elements in an object.
- _.size = (obj) -> _.toArray(obj).length
- # Array Functions
- # ---------------
- # Get the first element of an array. Passing `n` will return the first N
- # values in the array. Aliased as **head**. The `guard` check allows it to work
- # with **map**.
- _.first = (array, n, guard) ->
- if n and not guard then slice.call(array, 0, n) else array[0]
- # Returns everything but the first entry of the array. Aliased as **tail**.
- # Especially useful on the arguments object. Passing an `index` will return
- # the rest of the values in the array from that index onward. The `guard`
- # check allows it to work with **map**.
- _.rest = (array, index, guard) ->
- slice.call(array, if _.isUndefined(index) or guard then 1 else index)
- # Get the last element of an array.
- _.last = (array) -> array[array.length - 1]
- # Trim out all falsy values from an array.
- _.compact = (array) -> item for item in array when item
- # Return a completely flattened version of an array.
- _.flatten = (array) ->
- _.reduce array, (memo, value) ->
- return memo.concat(_.flatten(value)) if _.isArray value
- memo.push value
- memo
- , []
- # Return a version of the array that does not contain the specified value(s).
- _.without = (array) ->
- values = _.rest arguments
- val for val in _.toArray(array) when not _.include values, val
- # Produce a duplicate-free version of the array. If the array has already
- # been sorted, you have the option of using a faster algorithm.
- _.uniq = (array, isSorted) ->
- memo = []
- for el, i in _.toArray array
- memo.push el if i is 0 || (if isSorted is true then _.last(memo) isnt el else not _.include(memo, el))
- memo
- # Produce an array that contains every item shared between all the
- # passed-in arrays.
- _.intersect = (array) ->
- rest = _.rest arguments
- _.select _.uniq(array), (item) ->
- _.all rest, (other) ->
- _.indexOf(other, item) >= 0
- # Zip together multiple lists into a single array -- elements that share
- # an index go together.
- _.zip = ->
- length = _.max _.pluck arguments, 'length'
- results = new Array length
- for i in [0...length]
- results[i] = _.pluck arguments, String i
- results
- # If the browser doesn't supply us with **indexOf** (I'm looking at you, MSIE),
- # we need this function. Return the position of the first occurrence of an
- # item in an array, or -1 if the item is not included in the array.
- _.indexOf = (array, item) ->
- return array.indexOf item if nativeIndexOf and array.indexOf is nativeIndexOf
- i = 0; l = array.length
- while l - i
- if array[i] is item then return i else i++
- -1
- # Provide JavaScript 1.6's **lastIndexOf**, delegating to the native function,
- # if possible.
- _.lastIndexOf = (array, item) ->
- return array.lastIndexOf(item) if nativeLastIndexOf and array.lastIndexOf is nativeLastIndexOf
- i = array.length
- while i
- if array[i] is item then return i else i--
- -1
- # Generate an integer Array containing an arithmetic progression. A port of
- # [the native Python **range** function](http://docs.python.org/library/functions.html#range).
- _.range = (start, stop, step) ->
- a = arguments
- solo = a.length <= 1
- i = start = if solo then 0 else a[0]
- stop = if solo then a[0] else a[1]
- step = a[2] or 1
- len = Math.ceil((stop - start) / step)
- return [] if len <= 0
- range = new Array len
- idx = 0
- loop
- return range if (if step > 0 then i - stop else stop - i) >= 0
- range[idx] = i
- idx++
- i+= step
- # Function Functions
- # ------------------
- # Create a function bound to a given object (assigning `this`, and arguments,
- # optionally). Binding with arguments is also known as **curry**.
- _.bind = (func, obj) ->
- args = _.rest arguments, 2
- -> func.apply obj or root, args.concat arguments
- # Bind all of an object's methods to that object. Useful for ensuring that
- # all callbacks defined on an object belong to it.
- _.bindAll = (obj) ->
- funcs = if arguments.length > 1 then _.rest(arguments) else _.functions(obj)
- _.each funcs, (f) -> obj[f] = _.bind obj[f], obj
- obj
- # Delays a function for the given number of milliseconds, and then calls
- # it with the arguments supplied.
- _.delay = (func, wait) ->
- args = _.rest arguments, 2
- setTimeout((-> func.apply(func, args)), wait)
- # Memoize an expensive function by storing its results.
- _.memoize = (func, hasher) ->
- memo = {}
- hasher or= _.identity
- ->
- key = hasher.apply this, arguments
- return memo[key] if key of memo
- memo[key] = func.apply this, arguments
- # Defers a function, scheduling it to run after the current call stack has
- # cleared.
- _.defer = (func) ->
- _.delay.apply _, [func, 1].concat _.rest arguments
- # Returns the first function passed as an argument to the second,
- # allowing you to adjust arguments, run code before and after, and
- # conditionally execute the original function.
- _.wrap = (func, wrapper) ->
- -> wrapper.apply wrapper, [func].concat arguments
- # Returns a function that is the composition of a list of functions, each
- # consuming the return value of the function that follows.
- _.compose = ->
- funcs = arguments
- ->
- args = arguments
- for i in [funcs.length - 1..0] by -1
- args = [funcs[i].apply(this, args)]
- args[0]
- # Object Functions
- # ----------------
- # Retrieve the names of an object's properties.
- _.keys = nativeKeys or (obj) ->
- return _.range 0, obj.length if _.isArray(obj)
- key for key, val of obj
- # Retrieve the values of an object's properties.
- _.values = (obj) ->
- _.map obj, _.identity
- # Return a sorted list of the function names available in Underscore.
- _.functions = (obj) ->
- _.filter(_.keys(obj), (key) -> _.isFunction(obj[key])).sort()
- # Extend a given object with all of the properties in a source object.
- _.extend = (obj) ->
- for source in _.rest(arguments)
- obj[key] = val for key, val of source
- obj
- # Create a (shallow-cloned) duplicate of an object.
- _.clone = (obj) ->
- return obj.slice 0 if _.isArray obj
- _.extend {}, obj
- # Invokes interceptor with the obj, and then returns obj.
- # The primary purpose of this method is to "tap into" a method chain,
- # in order to perform operations on intermediate results within
- the chain.
- _.tap = (obj, interceptor) ->
- interceptor obj
- obj
- # Perform a deep comparison to check if two objects are equal.
- _.isEqual = (a, b) ->
- # Check object identity.
- return true if a is b
- # Different types?
- atype = typeof(a); btype = typeof(b)
- return false if atype isnt btype
- # Basic equality test (watch out for coercions).
- return true if `a == b`
- # One is falsy and the other truthy.
- return false if (!a and b) or (a and !b)
- # One of them implements an `isEqual()`?
- return a.isEqual(b) if a.isEqual
- # Check dates' integer values.
- return a.getTime() is b.getTime() if _.isDate(a) and _.isDate(b)
- # Both are NaN?
- return false if _.isNaN(a) and _.isNaN(b)
- # Compare regular expressions.
- if _.isRegExp(a) and _.isRegExp(b)
- return a.source is b.source and
- a.global is b.global and
- a.ignoreCase is b.ignoreCase and
- a.multiline is b.multiline
- # If a is not an object by this point, we can't handle it.
- return false if atype isnt 'object'
- # Check for different array lengths before comparing contents.
- return false if a.length and (a.length isnt b.length)
- # Nothing else worked, deep compare the contents.
- aKeys = _.keys(a); bKeys = _.keys(b)
- # Different object sizes?
- return false if aKeys.length isnt bKeys.length
- # Recursive comparison of contents.
- return false for key, val of a when !(key of b) or !_.isEqual(val, b[key])
- true
- # Is a given array or object empty?
- _.isEmpty = (obj) ->
- return obj.length is 0 if _.isArray(obj) or _.isString(obj)
- return false for own key of obj
- true
- # Is a given value a DOM element?
- _.isElement = (obj) -> obj and obj.nodeType is 1
- # Is a given value an array?
- _.isArray = nativeIsArray or (obj) -> !!(obj and obj.concat and obj.unshift and not obj.callee)
- # Is a given variable an arguments object?
- _.isArguments = (obj) -> obj and obj.callee
- # Is the given value a function?
- _.isFunction = (obj) -> !!(obj and obj.constructor and obj.call and obj.apply)
- # Is the given value a string?
- _.isString = (obj) -> !!(obj is '' or (obj and obj.charCodeAt and obj.substr))
- # Is a given value a number?
- _.isNumber = (obj) -> (obj is +obj) or toString.call(obj) is '[object Number]'
- # Is a given value a boolean?
- _.isBoolean = (obj) -> obj is true or obj is false
- # Is a given value a Date?
- _.isDate = (obj) -> !!(obj and obj.getTimezoneOffset and obj.setUTCFullYear)
- # Is the given value a regular expression?
- _.isRegExp = (obj) -> !!(obj and obj.exec and (obj.ignoreCase or obj.ignoreCase is false))
- # Is the given value NaN -- this one is interesting. `NaN != NaN`, and
- # `isNaN(undefined) == true`, so we make sure it's a number first.
- _.isNaN = (obj) -> _.isNumber(obj) and window.isNaN(obj)
- # Is a given value equal to null?
- _.isNull = (obj) -> obj is null
- # Is a given variable undefined?
- _.isUndefined = (obj) -> typeof obj is 'undefined'
- # Utility Functions
- # -----------------
- # Run Underscore.js in noConflict mode, returning the `_` variable to its
- # previous owner. Returns a reference to the Underscore object.
- _.noConflict = ->
- root._ = previousUnderscore
- this
- # Keep the identity function around for default iterators.
- _.identity = (value) -> value
- # Run a function `n` times.
- _.times = (n, iterator, context) ->
- iterator.call context, i for i in [0...n]
- # Break out of the middle of an iteration.
- _.breakLoop = -> throw breaker
- # Add your own custom functions to the Underscore object, ensuring that
- # they're correctly added to the OOP wrapper as well.
- _.mixin = (obj) ->
- for name in _.functions(obj)
- addToWrapper name, _[name] = obj[name]
- # Generate a unique integer id (unique within the entire client session).
- # Useful for temporary DOM ids.
- idCounter = 0
- _.uniqueId = (prefix) ->
- (prefix or '') + idCounter++
- # By default, Underscore uses **ERB**-style template delimiters, change the
- # following template settings to use alternative delimiters.
- _.templateSettings = {
- start: '<%'
- end: '%>'
- interpolate: /<%=(.+?)%>/g
- }
- # JavaScript templating a-la **ERB**, pilfered from John Resig's
- # *Secrets of the JavaScript Ninja*, page 83.
- # Single-quote fix from Rick Strahl.
- # With alterations for arbitrary delimiters, and to preserve whitespace.
- _.template = (str, data) ->
- c = _.templateSettings
- endMatch = new RegExp("'(?=[^"+c.end.substr(0, 1)+"]*"+escapeRegExp(c.end)+")","g")
- fn = new Function 'obj',
- 'var p=[],print=function(){p.push.apply(p,arguments);};' +
- 'with(obj||{}){p.push(\'' +
- str.replace(/\r/g, '\\r')
- .replace(/\n/g, '\\n')
- .replace(/\t/g, '\\t')
- .replace(endMatch,"���")
- .split("'").join("\\'")
- .split("���").join("'")
- .replace(c.interpolate, "',$1,'")
- .split(c.start).join("');")
- .split(c.end).join("p.push('") +
- "');}return p.join('');"
- if data then fn(data) else fn
- # Aliases
- # -------
- _.forEach = _.each
- _.foldl = _.inject = _.reduce
- _.foldr = _.reduceRight
- _.select = _.filter
- _.all = _.every
- _.any = _.some
- _.contains = _.include
- _.head = _.first
- _.tail = _.rest
- _.methods = _.functions
- # Setup the OOP Wrapper
- # ---------------------
- # If Underscore is called as a function, it returns a wrapped object that
- # can be used OO-style. This wrapper holds altered versions of all the
- # underscore functions. Wrapped objects may be chained.
- wrapper = (obj) ->
- this._wrapped = obj
- this
- # Helper function to continue chaining intermediate results.
- result = (obj, chain) ->
- if chain then _(obj).chain() else obj
- # A method to easily add functions to the OOP wrapper.
- addToWrapper = (name, func) ->
- wrapper.prototype[name] = ->
- args = _.toArray arguments
- unshift.call args, this._wrapped
- result func.apply(_, args), this._chain
- # Add all ofthe Underscore functions to the wrapper object.
- _.mixin _
- # Add all mutator Array functions to the wrapper.
- _.each ['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], (name) ->
- method = Array.prototype[name]
- wrapper.prototype[name] = ->
- method.apply(this._wrapped, arguments)
- result(this._wrapped, this._chain)
- # Add all accessor Array functions to the wrapper.
- _.each ['concat', 'join', 'slice'], (name) ->
- method = Array.prototype[name]
- wrapper.prototype[name] = ->
- result(method.apply(this._wrapped, arguments), this._chain)
- # Start chaining a wrapped Underscore object.
- wrapper::chain = ->
- this._chain = true
- this
- # Extracts the result from a wrapped and chained object.
- wrapper::value = -> this._wrapped
- </textarea></form>
- <script>
- var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
- </script>
- <p><strong>MIME types defined:</strong> <code>text/x-coffeescript</code>.</p>
- <p>The CoffeeScript mode was written by Jeff Pickhardt (<a href="LICENSE">license</a>).</p>
- </body>
- </html>
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