added string formatting

README

@@ -23,3 +23,10 @@ API (just one method) is available on URL http://chronic.heroku.com/pdt/{your_st
 For example:
 
   http://chronic.heroku.com/pdt/in+two+hours
+
+You can also add a format string based on Ruby Time strftime, replacing % with \
+For example:
+
+  http://chronic.heroku.com/pdt/in+two+hours?\a \b \d \I:\M:\S \Z \Y
+
+See http://corelib.rubyonrails.org/classes/Time.html#M000264 for more info.

timeapi.rb

@@ -21,7 +21,13 @@ class App < Sinatra::Default
     set :sessions, false
     set :run, false
     set :environment, ENV['RACK_ENV']
-
+
+    def format
+      request.query_string \
+        .gsub('%20', ' ') \
+        .gsub('\\', '%') \
+    end
+
     get '/' do
       erb :index
     end
@@ -34,7 +40,7 @@ class App < Sinatra::Default
       zone = params[:zone].upcase
       offset = TimeAPI::const_get(zone)
 
-      Time.new.utc.to_datetime.new_offset(Rational(offset,24)).to_s
+      Time.new.utc.to_datetime.new_offset(Rational(offset,24)).to_s(format)
     end
 
     get '/:zone/:time' do
@@ -50,7 +56,7 @@ class App < Sinatra::Default
 
       Chronic.parse(
         time, :now=>Time.new.utc.set_timezone(offset)
-      ).to_datetime.to_s
+      ).to_datetime.to_s(format)
     end
 
   end
@@ -76,4 +82,12 @@ class DateTime
   def to_datetime
     self
   end
+
+  def to_s(format='')
+    unless format.empty?
+      strftime(format)
+    else
+      strftime
+    end
+  end
 end

views/index.erb

@@ -16,6 +16,9 @@
 		<li><a href="/pdt/7+hours+before+tomorrow+at+noon">/pdt/7+hours+before+tomorrow+at+noon</a> &rarr; I think you get the point.</li>
 	</ul>
 	<p>See <a href="http://chronic.rubyforge.org/">Chronic documentation</a> for more examples.</p>
+	<p>You can also add a formatting string with the query parameter based on modified Ruby <a href="http://corelib.rubyonrails.org/classes/Time.html#M000264">Time#strftime</a>:<br />
+		<a href="/utc/now?\a \b \d \I:\M:\S \Z \Y" style="margin-left: 40px;">/utc/now?\a \b \d \I:\M:\S \Z \Y</a>
+	</p>
 	<p>
 		by <a href="http://zh.soup.io/">Stoyan Zhekov</a>, <a href="http://chipt.com/">Matt Pennig</a>, and <a href="http://progrium.com">Jeff Lindsay</a>. <a href="http://github.com/progrium/timeapi/tree/master">Source code</a> is on GitHub. Hosted on <a href="http://heroku.com/">Heroku</a>.
 	</p>