make equals signs full equals of colons -- you can use them inside of object literals now too

lib/coffee_script/grammar.y

@@ -28,10 +28,10 @@ prechigh
   left     '&&' '||' AND OR
   right    '-=' '+=' '/=' '*=' '%='
   right    DELETE INSTANCEOF TYPEOF
-  left     "."
+  left     '.'
   right    THROW FOR IN WHILE NEW SUPER
   left     UNLESS IF ELSE EXTENDS
-  left     ':' '=' '||=' '&&='
+  left     ASSIGN '||=' '&&='
   right    RETURN
 preclow
 
@@ -115,14 +115,13 @@ rule
 
   # Assignment to a variable.
   Assign:
-    Value ":" Expression              { result = AssignNode.new(val[0], val[2]) }
-  | Value "=" Expression              { result = AssignNode.new(val[0], val[2]) }
+    Value ASSIGN Expression         { result = AssignNode.new(val[0], val[2]) }
   ;
 
   # Assignment within an object literal.
   AssignObj:
-    IDENTIFIER ":" Expression         { result = AssignNode.new(val[0], val[2], :object) }
-  | STRING ":" Expression             { result = AssignNode.new(val[0], val[2], :object) }
+    IDENTIFIER ASSIGN Expression    { result = AssignNode.new(val[0], val[2], :object) }
+  | STRING ASSIGN Expression        { result = AssignNode.new(val[0], val[2], :object) }
   | Comment                           { result = val[0] }
   ;
 

lib/coffee_script/lexer.rb

@@ -40,6 +40,9 @@ module CoffeeScript
     # Tokens that always constitute the end of an expression.
     EXP_END    = ['}', ')', ']']
 
+    # Assignment tokens.
+    ASSIGN     = [':', '=']
+
     # Scan by attempting to match tokens one character at a time. Slow and steady.
     def tokenize(code)
       @code = code.chomp  # Cleanup code by remove extra line breaks
@@ -139,7 +142,8 @@ module CoffeeScript
       value ||= @chunk[0,1]
       skip_following_newlines if EXP_START.include?(value)
       remove_leading_newlines if EXP_END.include?(value)
-      token(value, value)
+      tag = ASSIGN.include?(value) ? :ASSIGN : value
+      token(tag, value)
       @i += value.length
     end