Fix spelling

examples/underscore.coffee

@@ -317,7 +317,7 @@ _.zip = ->
 
 
 # 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 occurence of an
+# 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

src/coffee-script.coffee

@@ -1,7 +1,7 @@
 # CoffeeScript can be used both on the server, as a command-line compiler based
 # on Node.js/V8, or to run CoffeeScripts directly in the browser. This module
-# contains the main entry functions for tokenzing, parsing, and compiling source
-# CoffeeScript into JavaScript.
+# contains the main entry functions for tokenizing, parsing, and compiling
+# source CoffeeScript into JavaScript.
 #
 # If included on a webpage, it will automatically sniff out, compile, and
 # execute all scripts present in `text/coffeescript` tags.

src/grammar.coffee

@@ -62,7 +62,7 @@ grammar =
     o 'Block TERMINATOR'
   ]
 
-  # Any list of statements and expressions, seperated by line breaks or semicolons.
+  # Any list of statements and expressions, separated by line breaks or semicolons.
   Body: [
     o 'Line',                                   -> Expressions.wrap [$1]
     o 'Body TERMINATOR Line',                   -> $1.push $3

src/helpers.coffee

@@ -15,7 +15,7 @@ exports.ends = (string, literal, back) ->
 exports.compact = (array) ->
   item for item in array when item
 
-# Count the number of occurences of a character in a string.
+# Count the number of occurrences of a character in a string.
 exports.count = (string, letter) ->
   num = pos = 0
   num++ while pos = 1 + string.indexOf letter, pos

src/lexer.coffee

@@ -15,7 +15,7 @@
 # The Lexer Class
 # ---------------
 
-# The Lexer class reads a stream of CoffeeScript and divvys it up into tagged
+# The Lexer class reads a stream of CoffeeScript and divvies it up into tagged
 # tokens. Some potential ambiguity in the grammar has been avoided by
 # pushing some extra smarts into the Lexer.
 exports.Lexer = class Lexer
@@ -304,7 +304,7 @@ exports.Lexer = class Lexer
     @tokens.pop() if @value() is '\\'
     this
 
-  # We treat all other single characters as a token. Eg.: `( ) , . !`
+  # We treat all other single characters as a token. E.g.: `( ) , . !`
   # Multi-character operators are also literal tokens, so that Jison can assign
   # the proper order of operations. There are some symbols that we tag specially
   # here. `;` and newlines are both treated as a `TERMINATOR`, we distinguish
@@ -628,7 +628,7 @@ SHIFT   = ['<<', '>>', '>>>']
 # Comparison tokens.
 COMPARE = ['==', '!=', '<', '>', '<=', '>=']
 
-# Mathmatical tokens.
+# Mathematical tokens.
 MATH    = ['*', '/', '%']
 
 # Relational tokens that are negatable with `not` prefix.

src/nodes.coffee

@@ -77,7 +77,7 @@ exports.Base = class Base
 
   # Construct a node that returns the current node's result.
   # Note that this is overridden for smarter behavior for
-  # many statement nodes (eg If, For)...
+  # many statement nodes (e.g. If, For)...
   makeReturn: ->
     new Return this
 
@@ -371,7 +371,7 @@ exports.Value = class Value extends Base
     [base.push(name), new Value(bref or base.base, [nref or name])]
 
   # We compile a value to JavaScript by compiling and joining each property.
-  # Things get much more insteresting if the chain of properties has *soak*
+  # Things get much more interesting if the chain of properties has *soak*
   # operators `?.` interspersed. Then we have to take care not to accidentally
   # evaluate anything twice when building the soak chain.
   compileNode: (o) ->
@@ -433,7 +433,8 @@ exports.Call = class Call extends Base
     @isNew = true
     this
 
-  # Grab the reference to the superclass' implementation of the current method.
+  # Grab the reference to the superclass's implementation of the current
+  # method.
   superReference: (o) ->
     {method} = o.scope
     throw SyntaxError 'cannot call super outside of a function.' unless method

src/optparse.coffee

@@ -18,7 +18,7 @@ exports.OptionParser = class OptionParser
 
   # Parse the list of arguments, populating an `options` object with all of the
   # specified options, and returning it. `options.arguments` will be an array
-  # containing the remaning non-option arguments. This is a simpler API than
+  # containing the remaining non-option arguments. This is a simpler API than
   # many option parsers that allow you to attach callback actions for every
   # flag. Instead, you're responsible for interpreting the options object.
   parse: (args) ->