Add new hash syntax option to hash_formatter

lib/awesome_print/formatters/hash_formatter.rb

@@ -28,7 +28,11 @@ module AwesomePrint
 
         data = data.map do |key, value|
           indented do
-            align(key, width) << colorize(" => ", :hash) << inspector.awesome(value)
+            if options[:new_hash_syntax] && symbol?(key)
+              new_hash_syntax(key, value, width)
+            else
+              old_hash_syntax(key, value, width)
+            end
           end
         end
 
@@ -42,6 +46,19 @@ module AwesomePrint
 
       private
 
+      def symbol?(k)
+        k.first == ':'
+      end
+
+      def new_hash_syntax(k, v, width)
+        k[0] = ''
+        align(k, width - 1) << colorize(": ", :hash) << inspector.awesome(v)
+      end
+
+      def old_hash_syntax(k, v, width)
+        align(k, width) << colorize(" => ", :hash) << inspector.awesome(v)
+      end
+
       def plain_single_line
         plain, multiline = options[:plain], options[:multiline]
         options[:plain], options[:multiline] = true, false

lib/awesome_print/inspector.rb

@@ -56,14 +56,15 @@ module AwesomePrint
 
     def initialize(options = {})
       @options = { 
-        :indent     => 4,      # Indent using 4 spaces.
-        :index      => true,   # Display array indices.
-        :html       => false,  # Use ANSI color codes rather than HTML.
-        :multiline  => true,   # Display in multiple lines.
-        :plain      => false,  # Use colors.
-        :raw        => false,  # Do not recursively format object instance variables.
-        :sort_keys  => false,  # Do not sort hash keys.
-        :limit      => false,  # Limit large output for arrays and hashes. Set to a boolean or integer.
+        :indent          => 4,      # Indent using 4 spaces.
+        :index           => true,   # Display array indices.
+        :html            => false,  # Use ANSI color codes rather than HTML.
+        :multiline       => true,   # Display in multiple lines.
+        :plain           => false,  # Use colors.
+        :raw             => false,  # Do not recursively format object instance variables.
+        :sort_keys       => false,  # Do not sort hash keys.
+        :limit           => false,  # Limit large output for arrays and hashes. Set to a boolean or integer.
+        :new_hash_syntax => false,  # Use the JSON like syntax { foo: 'bar' }, when the key is a symbol
         :color => { 
           :args       => :pale,
           :array      => :white,