most of the examples converted to symbology.

examples/beautiful_code/binary_search.coffee

@@ -2,15 +2,15 @@
 # The implementation of binary search that is tested.
 
 # Return the index of an element in a sorted list. (or -1, if not present)
-index: (list, target) ->
+index = (list, target) ->
-  [low, high]: [0, list.length]
+  [low, high] = [0, list.length]
   while low < high
-    mid: (low + high) >> 1
+    mid = (low + high) >> 1
-    val: list[mid]
+    val = list[mid]
     return mid if val is target
-    if val < target then low: mid + 1 else high: mid
+    if val < target then low = mid + 1 else high = mid
   return -1
 
-puts 2 is index([10, 20, 30, 40, 50], 30)
+puts 2 is index [10, 20, 30, 40, 50], 30
-puts 4 is index([-97, 35, 67, 88, 1200], 1200)
+puts 4 is index [-97, 35, 67, 88, 1200], 1200
-puts 0 is index([0, 45, 70], 0)
+puts 0 is index [0, 45, 70], 0

examples/beautiful_code/quicksort_runtime.coffee

@@ -1,11 +1,11 @@
 # Beautiful Code, Chapter 3.
 # Produces the expected runtime of Quicksort, for every integer from 1 to N.
 
-runtime: (N) ->
+runtime = (N) ->
-  [sum, t]: [0, 0]
+  [sum, t] = [0, 0]
   for n in [1..N]
     sum += 2 * t
-    t: n - 1 + sum / n
+    t = n - 1 + sum / n
   t
 
 puts runtime(3) is 2.6666666666666665

examples/beautiful_code/regular_expression_matcher.coffee

@@ -3,16 +3,16 @@
 # '.', '^', '$', and '*'.
 
 # Search for the regexp anywhere in the text.
-match: (regexp, text) ->
+match = (regexp, text) ->
   return match_here(regexp.slice(1), text) if regexp[0] is '^'
   while text
     return true if match_here(regexp, text)
-    text: text.slice(1)
+    text = text.slice(1)
   false
 
 # Search for the regexp at the beginning of the text.
-match_here: (regexp, text) ->
+match_here = (regexp, text) ->
-  [cur, next]: [regexp[0], regexp[1]]
+  [cur, next] = [regexp[0], regexp[1]]
   if regexp.length is 0 then return true
   if next is '*' then return match_star(cur, regexp.slice(2), text)
   if cur is '$' and not next then return text.length is 0
@@ -20,11 +20,11 @@ match_here: (regexp, text) ->
   false
 
 # Search for a kleene star match at the beginning of the text.
-match_star: (c, regexp, text) ->
+match_star = (c, regexp, text) ->
   loop
     return true if match_here(regexp, text)
     return false unless text and (text[0] is c or c is '.')
-    text: text.slice(1)
+    text = text.slice(1)
 
 puts match("ex", "some text")
 puts match("s..t", "spit")

examples/blocks.coffee

@@ -6,8 +6,8 @@ get '/hello', ->
 
 
 # Append.
-append: (location, data) ->
+append = (location, data) ->
-  path: new Pathname location
+  path = new Pathname location
   throw new Error("Location does not exist") unless path.exists()
 
   File.open path, 'a', (file) ->
@@ -17,23 +17,20 @@ append: (location, data) ->
 
 
 # Rubinius' File.open implementation.
-File.open: (path, mode, block) ->
+File.open = (path, mode, block) ->
-  io: new File path, mode
+  io = new File path, mode
 
   return io unless block
 
   try
     block io
   finally
-    try
     io.close() unless io.closed()
-    catch error
-      # nothing, just swallow them.
 
 
 # Write.
-write: (location, data) ->
+write = (location, data) ->
-  path: new Pathname location
+  path = new Pathname location
   raise "Location does not exist" unless path.exists()
 
   File.open path, 'w', (file) ->
@@ -43,15 +40,15 @@ write: (location, data) ->
 
 
 # Rails' respond_to.
-index: ->
+index = ->
-  people: Person.find 'all'
+  people = Person.find 'all'
 
   respond_to (format) ->
     format.html()
-    format.xml -> render { xml: people.xml() }
+    format.xml -> render xml: people.xml()
 
 
 # Synchronization.
-synchronize: (block) ->
+synchronize = (block) ->
   lock()
   try block() finally unlock()

examples/code.coffee

@@ -1,39 +1,37 @@
 # Functions:
-square: (x) -> x * x
+square = (x) -> x * x
 
-sum: (x, y) -> x + y
+sum = (x, y) -> x + y
 
-odd: (x) -> x % 2 isnt 0
+odd = (x) -> x % 2 isnt 0
 
-even: (x) -> x % 2 is 0
+even = (x) -> x % 2 is 0
 
-run_loop: ->
+run_loop = ->
   fire_events((e) -> e.stopPropagation())
   listen()
   wait()
 
 # Objects:
-dense_object_literal: {one: 1, two: 2, three: 3}
+dense_object_literal = {one: 1, two: 2, three: 3}
 
-spaced_out_multiline_object: {
+spaced_out_multiline_object =
   pi: 3.14159
   list: [1, 2, 3, 4]
   regex: /match[ing](every|thing|\/)/gi
   three: new Idea
 
-  inner_obj: {
+  inner_obj:
     freedom: -> _.freedom()
-  }
-}
 
 # Arrays:
-stooges: [{moe: 45}, {curly: 43}, {larry: 46}]
+stooges = [{moe: 45}, {curly: 43}, {larry: 46}]
 
-exponents: [(x) -> x, (x) -> x * x, (x) -> x * x * x]
+exponents = [((x) -> x), ((x) -> x * x), ((x) -> x * x * x)]
 
-empty: []
+empty = []
 
-multiline: [
+multiline = [
   'line one'
   'line two'
 ]
@@ -47,14 +45,14 @@ else if submarine.sinking
 else
   run_away()
 
-eldest: if 25 > 21 then liz else marge
+eldest = if 25 > 21 then liz else marge
 
-decoration: medal_of_honor if war_hero
+decoration = medal_of_honor if war_hero
 
 go_to_sleep() unless coffee
 
 # Returning early:
-race: ->
+race = ->
   run()
   walk()
   crawl()
@@ -62,13 +60,13 @@ race: ->
   race()
 
 # Conditional assignment:
-good ||= evil
+good = or evil
-wine &&= cheese
+wine = and cheese
 
 # Nested property access and calls.
 ((moon.turn(360))).shapes[3].move({x: 45, y: 30}).position['top'].offset('x')
 
-a: b: c: 5
+a = b = c = 5
 
 # Embedded JavaScript.
 callback(
@@ -102,19 +100,19 @@ loop
 !!true
 
 # Lexical scoping.
-v_1: 5
+v_1 = 5
-change_a_and_set_b: ->
+change_a_and_set_b = ->
-  v_1: 10
+  v_1 = 10
-  v_2: 15
+  v_2 = 15
-v_2: 20
+v_2 = 20
 
 # Array comprehensions.
-supper: food.capitalize() for food in ['toast', 'cheese', 'wine']
+supper = food.capitalize() for food in ['toast', 'cheese', 'wine']
 
-drink(bottle) for bottle, i in ['soda', 'wine', 'lemonade'] when even(i)
+drink bottle for bottle, i in ['soda', 'wine', 'lemonade'] when even i
 
 # Switch statements ("else" serves as a default).
-activity: switch day
+activity = switch day
   when "Tuesday"   then eat_breakfast()
   when "Sunday"    then go_to_church()
   when "Saturday"  then go_to_the_park()
@@ -128,50 +126,46 @@ activity: switch day
   else go_to_work()
 
 # Semicolons can optionally be used instead of newlines.
-wednesday: -> eat_breakfast(); go_to_work(); eat_dinner()
+wednesday = -> eat_breakfast(); go_to_work(); eat_dinner()
 
 # Array slice literals.
-zero_to_nine: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+zero_to_nine = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-three_to_six: zero_to_nine[3..6]
+three_to_six = zero_to_nine[3..6]
 
 # Multiline strings with inner quotes.
-story: "Lorem ipsum dolor \"sit\" amet, consectetuer adipiscing elit,
+story = "Lorem ipsum dolor \"sit\" amet, consectetuer adipiscing elit,
 sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna
 aliquam erat volutpat. Ut wisi enim ad."
 
 # Inheritance and calling super.
 class Animal
+  constructor: (@name) ->
+
   move: (meters) ->
     alert this.name + " moved " + meters + "m."
 
 class Snake extends Animal
-  constructor: (name) ->
-    @name: name
-
   move: ->
     alert 'Slithering...'
     super 5
 
 class Horse extends Animal
-  constructor: (name) ->
-    @name: name
-
   move: ->
     alert 'Galloping...'
     super 45
 
-sam: new Snake "Sammy the Snake"
+sam = new Snake "Sammy the Snake"
-tom: new Horse "Tommy the Horse"
+tom = new Horse "Tommy the Horse"
 
 sam.move()
 tom.move()
 
 # Numbers.
-a_googol:   1e100
+a_googol =  1e100
-hex:        0xff0000
+hex      =  0xff0000
-negative:   -1.0
+negative =  -1.0
-infinity:   Infinity
+infinity =  Infinity
-nan:        NaN
+nan      =  NaN
 
 # Deleting.
 delete secret.identity

examples/computer_science/binary_search.coffee

@@ -1,25 +1,25 @@
 # Uses a binary search algorithm to locate a value in the specified array.
-binary_search: (items, value) ->
+binary_search = (items, value) ->
 
-  start: 0
+  start = 0
-  stop:  items.length - 1
+  stop  = items.length - 1
-  pivot: Math.floor((start + stop) / 2)
+  pivot = Math.floor (start + stop) / 2
 
   while items[pivot] isnt value and start < stop
 
     # Adjust the search area.
-    stop:   pivot - 1 if value < items[pivot]
+    stop  = pivot - 1 if value < items[pivot]
-    start:  pivot + 1 if value > items[pivot]
+    start = pivot + 1 if value > items[pivot]
 
     # Recalculate the pivot.
-    pivot: Math.floor((stop + start) / 2)
+    pivot = Math.floor (stop + start) / 2
 
   # Make sure we've found the correct value.
   if items[pivot] is value then pivot else -1
 
 
 # Test the function.
-puts(2 is binary_search([10, 20, 30, 40, 50], 30))
+puts 2 is binary_search [10, 20, 30, 40, 50], 30
-puts(4 is binary_search([-97, 35, 67, 88, 1200], 1200))
+puts 4 is binary_search [-97, 35, 67, 88, 1200], 1200
-puts(0 is binary_search([0, 45, 70], 0))
+puts 0 is binary_search [0, 45, 70], 0
-puts(-1 is binary_search([0, 45, 70], 10))
+puts(-1 is binary_search [0, 45, 70], 10)

examples/computer_science/bubble_sort.coffee

@@ -1,11 +1,11 @@
 # A bubble sort implementation, sorting the given array in-place.
-bubble_sort: (list) ->
+bubble_sort = (list) ->
   for i in [0...list.length]
     for j in [0...list.length - i]
-      [list[j], list[j+1]]: [list[j+1], list[j]] if list[j] > list[j+1]
+      [list[j], list[j+1]] = [list[j+1], list[j]] if list[j] > list[j+1]
   list
 
 
 # Test the function.
-puts(bubble_sort([3, 2, 1]).join(' ') is '1 2 3')
+puts bubble_sort([3, 2, 1]).join(' ') is '1 2 3'
-puts(bubble_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9')
+puts bubble_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9'

examples/computer_science/linked_list.coffee

@@ -2,7 +2,7 @@
 class LinkedList
 
   constructor: ->
-    this._head: null # Pointer to the first item in the list.
+    this._head = null # Pointer to the first item in the list.
 
 
   # Appends some data to the end of the list. This method traverses the existing
@@ -10,13 +10,13 @@ class LinkedList
   add: (data) ->
 
     # Create a new node object to wrap the data.
-    node: {data: data, next: null}
+    node = data: data, next: null
 
-    current: this._head ||= node
+    current = this._head = or node
 
     if this._head isnt node
-      current: current.next while current.next
+      (current = current.next) while current.next
-      current.next: node
+      current.next = node
 
     this
 
@@ -27,11 +27,11 @@ class LinkedList
     # Check for out-of-bounds values.
     return null if index < 0
 
-    current: this._head or null
+    current = this._head or null
-    i: -1
+    i = -1
 
     # Advance through the list.
-    current: current.next while current and index > (i += 1)
+    (current = current.next) while current and index > (i += 1)
 
     # Return null if we've reached the end.
     current and current.data
@@ -43,19 +43,19 @@ class LinkedList
     # Check for out-of-bounds values.
     return null if index < 0
 
-    current: this._head or null
+    current = this._head or null
-    i: -1
+    i = -1
 
     # Special case: removing the first item.
     if index is 0
-      this._head: current.next
+      this._head = current.next
     else
 
       # Find the right location.
-      [previous, current]: [current, current.next] while index > (i += 1)
+      ([previous, current] = [current, current.next]) while index > (i += 1)
 
       # Skip over the item to remove.
-      previous.next: current.next
+      previous.next = current.next
 
     # Return the value.
     current and current.data
@@ -63,24 +63,24 @@ class LinkedList
 
   # Calculate the number of items in the list.
   size: ->
-    current: this._head
+    current = this._head
-    count:   0
+    count = 0
 
     while current
       count += 1
-      current: current.next
+      current = current.next
 
     count
 
 
   # Convert the list into an array.
   toArray: ->
-    result:   []
+    result  = []
-    current:  this._head
+    current = this._head
 
     while current
-      result.push(current.data)
+      result.push current.data
-      current: current.next
+      current = current.next
 
     result
 
@@ -90,19 +90,19 @@ class LinkedList
 
 
 # Tests.
-list: new LinkedList
+list = new LinkedList
 
 list.add("Hi")
-puts(list.size()  is 1)
+puts list.size()  is 1
-puts(list.item(0) is "Hi")
+puts list.item(0) is "Hi"
-puts(list.item(1) is null)
+puts list.item(1) is null
 
-list: new LinkedList
+list = new LinkedList
 list.add("zero").add("one").add("two")
-puts(list.size()     is 3)
+puts list.size()     is 3
-puts(list.item(2)    is "two")
+puts list.item(2)    is "two"
-puts(list.remove(1)  is "one")
+puts list.remove(1)  is "one"
-puts(list.item(0)    is "zero")
+puts list.item(0)    is "zero"
-puts(list.item(1)    is "two")
+puts list.item(1)    is "two"
-puts(list.size()     is 2)
+puts list.size()     is 2
-puts(list.item(-10)  is null)
+puts list.item(-10)  is null

examples/computer_science/luhn_algorithm.coffee

@@ -2,15 +2,15 @@
 # numbers, national insurance numbers, etc.
 # See: http://en.wikipedia.org/wiki/Luhn_algorithm
 
-is_valid_identifier: (identifier) ->
+is_valid_identifier = (identifier) ->
 
-  sum: 0
+  sum = 0
-  alt: false
+  alt = false
 
   for i in [(identifier.length - 1)..0]
 
     # Get the next digit.
-    num: parseInt(identifier.charAt(i), 10)
+    num = parseInt identifier.charAt(i), 10
 
     # If it's not a valid number, abort.
     return false if isNaN(num)
@@ -18,10 +18,10 @@ is_valid_identifier: (identifier) ->
     # If it's an alternate number...
     if alt
       num *= 2
-      num: (num % 10) + 1 if num > 9
+      num = (num % 10) + 1 if num > 9
 
     # Flip the alternate bit.
-    alt: !alt
+    alt = !alt
 
     # Add to the rest of the sum.
     sum += num
@@ -31,6 +31,6 @@ is_valid_identifier: (identifier) ->
 
 
 # Tests.
-puts(is_valid_identifier("49927398716")      is true)
+puts is_valid_identifier("49927398716")      is true
-puts(is_valid_identifier("4408041234567893") is true)
+puts is_valid_identifier("4408041234567893") is true
-puts(is_valid_identifier("4408041234567890") is false)
+puts is_valid_identifier("4408041234567890") is false

examples/computer_science/merge_sort.coffee

@@ -1,12 +1,12 @@
 # Sorts an array in ascending natural order using merge sort.
-merge_sort: (list) ->
+merge_sort = (list) ->
 
   return list if list.length is 1
 
-  result: []
+  result  = []
-  pivot: Math.floor(list.length / 2)
+  pivot   = Math.floor list.length / 2
-  left:  merge_sort(list.slice(0, pivot))
+  left    = merge_sort list.slice 0, pivot
-  right: merge_sort(list.slice(pivot))
+  right   = merge_sort list.slice pivot
 
   while left.length and right.length
     result.push(if left[0] < right[0] then left.shift() else right.shift())
@@ -15,5 +15,5 @@ merge_sort: (list) ->
 
 
 # Test the function.
-puts(merge_sort([3, 2, 1]).join(' ') is '1 2 3')
+puts merge_sort([3, 2, 1]).join(' ') is '1 2 3'
-puts(merge_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9')
+puts merge_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9'

examples/computer_science/selection_sort.coffee

@@ -1,23 +1,23 @@
 # An in-place selection sort.
-selection_sort: (list) ->
+selection_sort = (list) ->
-  len: list.length
+  len = list.length
 
   # For each item in the list.
   for i in [0...len]
 
     # Set the minimum to this position.
-    min: i
+    min = i
 
     # Check the rest of the array to see if anything is smaller.
-    (min: j if list[j] < list[min]) for j in [(i+1)...len]
+    (min = j if list[j] < list[min]) for j in [(i+1)...len]
 
     # Swap if a smaller item has been found.
-    [list[i], list[min]]: [list[min], list[i]] if i isnt min
+    [list[i], list[min]] = [list[min], list[i]] if i isnt min
 
   # The list is now sorted.
   list
 
 
 # Test the function.
-puts(selection_sort([3, 2, 1]).join(' ') is '1 2 3')
+puts selection_sort([3, 2, 1]).join(' ') is '1 2 3'
-puts(selection_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9')
+puts selection_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9'

examples/poignant.coffee

@@ -2,7 +2,7 @@
 
 # ['toast', 'cheese', 'wine'].each { |food| print food.capitalize }
 
-['toast', 'wine', 'cheese'].each (food) -> print(food.capitalize())
+['toast', 'wine', 'cheese'].each (food) -> print food.capitalize()
 
 
 
@@ -13,12 +13,11 @@
 #   def purchased=(var); @purchased = var;  end
 # end
 
-LotteryTicket: {
+LotteryTicket =
-  get_picks:          -> this.picks
+  get_picks:      -> @picks
-  set_picks:      (nums) -> this.picks: nums
+  set_picks:      (@picks) ->
-  get_purchase:       -> this.purchase
+  get_purchased:  -> @purchase
-  set_purchase: (amount) -> this.purchase: amount
+  set_purchased:  (@purchased) ->
-}
 
 
 
@@ -39,19 +38,18 @@ LotteryTicket: {
 #   end
 # end
 
-LotteryDraw: {
+LotteryDraw =
   play: ->
-    result:   LotteryTicket.new_random()
+    result  = LotteryTicket.new_random()
-    winners:  {}
+    winners = {}
     this.tickets.each (buyer, ticket_list) ->
       ticket_list.each (ticket) ->
-        score: ticket.score(result)
+        score = ticket.score result
         return if score is 0
-        winners[buyer] ||= []
+        winners[buyer] = or []
-        winners[buyer].push([ticket, score])
+        winners[buyer].push [ticket, score]
-    this.tickets: {}
+    this.tickets = {}
     winners
-}
 
 
 
@@ -64,11 +62,10 @@ LotteryDraw: {
 #   end
 # end
 
-WishScanner: {
+WishScanner =
   scan_for_a_wish: ->
-    wish: this.read().detect((thought) -> thought.index('wish: ') is 0)
+    wish = this.read().detect (thought) -> thought.index('wish: ') is 0
-    wish.replace('wish: ', '')
+    wish.replace 'wish: ', ''
-}
 
 
 
@@ -108,34 +105,32 @@ WishScanner: {
 #
 # end
 
-Creature : {
+Creature =
 
   # This method applies a hit taken during a fight.
   hit: (damage) ->
-    p_up: Math.rand(this.charisma)
+    p_up = Math.rand this.charisma
     if p_up % 9 is 7
       this.life += p_up / 4
-      puts("[" + this.name + " magick powers up " + p_up + "!]")
+      puts "[" + this.name + " magick powers up " + p_up + "!]"
     this.life -= damage
-    if this.life <= 0 then puts("[" + this.name + " has died.]")
+    if this.life <= 0 then puts "[" + this.name + " has died.]"
 
   # This method takes one turn in a fight.
   fight: (enemy, weapon) ->
-    if this.life <= 0 then return puts("[" + this.name + "is too dead to fight!]")
+    if this.life <= 0 then return puts "[" + this.name + "is too dead to fight!]"
 
     # Attack the opponent.
-    your_hit: Math.rand(this.strength + weapon)
+    your_hit = Math.rand this.strength + weapon
-    puts("[You hit with " + your_hit + "points of damage!]")
+    puts "[You hit with " + your_hit + "points of damage!]"
-    enemy.hit(your_hit)
+    enemy.hit your_hit
 
     # Retaliation.
-    puts(enemy)
+    puts enemy
     if enemy.life > 0
-      enemy_hit: Math.rand(enemy.strength + enemy.weapon)
+      enemy_hit = Math.rand enemy.strength + enemy.weapon
-      puts("[Your enemy hit with " + enemy_hit + "points of damage!]")
+      puts "[Your enemy hit with " + enemy_hit + "points of damage!]"
-      this.hit(enemy_hit)
+      this.hit enemy_hit
-
-}
 
 
 
@@ -154,14 +149,14 @@ Creature : {
 # end
 
 # Get evil idea and swap in code words
-print("Enter your new idea: ")
+print "Enter your new idea: "
-idea: gets()
+idea = gets()
-code_words.each((real, code) -> idea.replace(real, code))
+code_words.each (real, code) -> idea.replace(real, code)
 
 # Save the jibberish to a new file
-print("File encoded. Please enter a name for this idea: ")
+print "File encoded. Please enter a name for this idea: "
-idea_name: gets().strip()
+idea_name = gets().strip()
-File.open("idea-" + idea_name + '.txt', 'w', (file) -> file.write(idea))
+File.open "idea-" + idea_name + '.txt', 'w', (file) -> file.write idea
 
 
 
@@ -177,10 +172,10 @@ File.open("idea-" + idea_name + '.txt', 'w', (file) -> file.write(idea))
 #   end
 # end
 
-wipe_mutterings_from: (sentence) ->
+wipe_mutterings_from = (sentence) ->
-  throw new Error("cannot wipe mutterings") unless sentence.indexOf
+  throw new Error "cannot wipe mutterings" unless sentence.indexOf
   while sentence.indexOf('(') >= 0
-    open:     sentence.indexOf('(') - 1
+    open     = sentence.indexOf('(') - 1
-    close:    sentence.indexOf(')') + 1
+    close    = sentence.indexOf(')') + 1
-    sentence: sentence[0..open] + sentence[close..sentence.length]
+    sentence = sentence[0..open] + sentence[close..sentence.length]
     sentence

examples/potion.coffee

@@ -2,14 +2,14 @@
 
 # 5 times: "Odelay!" print.
 
-print("Odelay!") for i in [1..5]
+print "Odelay!" for [1..5]
 
 
 # add = (x, y): x + y.
 # add(2, 4) string print
 
-add: (x, y) -> x + y
+add = (x, y) -> x + y
-print(add(2, 4))
+print add 2, 4
 
 
 # loop: 'quaff' print.
@@ -19,25 +19,25 @@ loop print 'quaff'
 
 # ('cheese', 'bread', 'mayo') at (1) print
 
-print(['cheese', 'bread', 'mayo'][1])
+print ['cheese', 'bread', 'mayo'][1]
 
 
 # (language='Potion', pointless=true) at (key='language') print
 
-print({language: 'Potion', pointless: true}['language'])
+print {language: 'Potion', pointless: true}['language']
 
 
 # minus = (x, y): x - y.
 # minus (y=10, x=6)
 
-minus: (x, y) -> x - y
+minus = (x, y) -> x - y
-minus(6, 10)
+minus 6, 10
 
 
 # foods = ('cheese', 'bread', 'mayo')
 # foods (2)
 
-foods: ['cheese', 'bread', 'mayo']
+foods = ['cheese', 'bread', 'mayo']
 foods[2]
 
 
@@ -45,7 +45,7 @@ foods[2]
 #   (key, ' is a ', val) join print.
 
 for key, val of {dog: 'canine', cat: 'feline', fox: 'vulpine'}
-  print(key + ' is a ' + val)
+  print key + ' is a ' + val
 
 
 # Person = class: /name, /age, /sex.
@@ -54,13 +54,13 @@ for key, val of {dog: 'canine', cat: 'feline', fox: 'vulpine'}
 
 class Person
   print: ->
-    print 'My name is ' + this.name + '.'
+    print 'My name is ' + @name + '.'
 
 
 # p = Person ()
 # p /name string print
 
-p: new Person
+p = new Person
 print p.name
 
 
@@ -71,10 +71,10 @@ print p.name
 # Policeman ('Constable') print
 
 class Policeman extends Person
-  constructor: (rank) ->
+  constructor: (@rank) ->
-    @rank: rank
+
   print: ->
-    print 'My name is ' + this.name + " and I'm a " + this.rank + '.'
+    print 'My name is ' + @name + " and I'm a " + @rank + '.'
 
 print new Policeman 'Constable'
 
@@ -83,11 +83,13 @@ print new Policeman 'Constable'
 #         [para 'Welcome.', button 'OK']]
 # app first name
 
-app = {
+app =
-  window:  {width: 200, height: 200}
+  window:
+    width: 200
+    height: 200
   para:    'Welcome.'
   button:  'OK'
-}
+
 app.window
 
 
@@ -96,33 +98,32 @@ app.window
 #
 # x = 1, y = 2
 
-x: 1
+x = 1
-y: 2
+y = 2
 
-x: 1; y: 2
+x = 1; y = 2
 
 
 # table = (language='Potion'
 #           pointless=true)
 
-table: {
+table =
   language: 'Potion'
   pointless: yes
-}
 
 
 # # this foul business...
 # String length = (): 10.
 
 # this foul business...
-String::length: -> 10
+String::length = -> 10
 
 
 # block = :
 #   'potion' print.
 
-block: ->
+block = ->
-  print('potion')
+  print 'potion'
 
 
 # if (age > 100): 'ancient'.
@@ -156,30 +157,30 @@ switch author
 #   'quaff' print
 #   count--.
 
-count: 8
+count = 8
 while count > 0
-  print('quaff')
+  print 'quaff'
   count--
 
 
 # 1 to 5 (a):
 #   a string print.
 
-print(a) for a in [1..5]
+print a for a in [1..5]
 
 
 # if (3 ?gender):
 #   "Huh? Numbers are sexed? That's amazing." print.
 
 if (3).gender?
-  print("Huh? Numbers are sexed? That's amazing.")
+  print "Huh? Numbers are sexed? That's amazing."
 
 
 # HomePage get = (url):
 #   session = url query ? at ('session').
 
-HomePage::get: (url) ->
+HomePage::get = (url) ->
-  session: url.query.session if url.query?
+  session = url.query.session if url.query?
 
 
 # BTree = class: /left, /right.
@@ -187,10 +188,10 @@ HomePage::get: (url) ->
 # b /left = BTree ()
 # b /right = BTree ()
 
-BTree:    ->
+BTree   = ->
-b:        new BTree
+b       = new BTree
-b.left:   new BTree
+b.left  = new BTree
-b.right:  new BTree
+b.right = new BTree
 
 
 # BTree = class: /left, /right.
@@ -199,7 +200,7 @@ b.right:  new BTree
 # if (b ? /left):
 #   'left path found!' print.
 
-BTree: ->
+BTree = ->
-b: new BTree
+b = new BTree
 
-print('left path found!') if b.left?
+print 'left path found!' if b.left?