Add title case method to String to do, e.g., 'action_web_service'.titlecase # ...

Add title case method to String to do, e.g., 'action_web_service'.titlecase #  => 'Action Web Service'.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2690 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/CHANGELOG

+* Add title case method to String to do, e.g., 'action_web_service'.titlecase #  => 'Action Web Service'. [Marcel Molina Jr.]
+
 *1.2.1* (October 19th, 2005)
 
 * Classify generated routing code as framework code to avoid appearing in application traces. [Nicholas Seckar]
 
 * Show all framework frames in the framework trace. [Nicholas Seckar]
 
-
 *1.2.0* (October 16th, 2005)
 
 * Update Exception extension to show the first few framework frames in an application trace. [Nicholas Seckar] 

activesupport/lib/active_support/core_ext/string/inflections.rb

@@ -15,6 +15,12 @@ def singularize
         def camelize
           Inflector.camelize(self)
         end
+        alias_method :camelcase, :camelize
+
+        def titleize
+          Inflector.titleize(self)
+        end
+        alias_method :titlecase, :titleize
 
         def underscore
           Inflector.underscore(self)

activesupport/lib/active_support/inflector.rb

@@ -112,6 +112,10 @@ def singularize(word)
   def camelize(lower_case_and_underscored_word)
     lower_case_and_underscored_word.to_s.gsub(/\/(.?)/) { "::" + $1.upcase }.gsub(/(^|_)(.)/) { $2.upcase }
   end
+
+  def titleize(word)
+    humanize(underscore(word)).gsub(/\b([a-z])/) { $1.capitalize }
+  end
   
   def underscore(camel_cased_word)
     camel_cased_word.to_s.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').gsub(/([a-z\d])([A-Z])/,'\1_\2').downcase
@@ -157,4 +161,4 @@ def ordinalize(number)
   end
 end
 
-require File.dirname(__FILE__) + '/inflections'
\ No newline at end of file
+require File.dirname(__FILE__) + '/inflections'

activesupport/test/inflector_test.rb

@@ -146,6 +146,16 @@ class InflectorTest < Test::Unit::TestCase
     "underground"     => "Underground"
   }
 
+  MixtureToTitleCase = {
+    'active_record'       => 'Active Record',
+    'ActiveRecord'        => 'Active Record',
+    'action web service'  => 'Action Web Service',
+    'Action Web Service'  => 'Action Web Service',
+    'Action web service'  => 'Action Web Service',
+    'actionwebservice'    => 'Actionwebservice',
+    'Actionwebservice'    => 'Actionwebservice'
+  }
+
   OrdinalNumbers = {
     "0" => "0th",
     "1" => "1st",
@@ -196,6 +206,12 @@ def test_pluralize_plurals
     end
   end
 
+  MixtureToTitleCase.each do |before, title_cased|
+    define_method 'test_titlecase' do
+      assert_equal(title_cased, Inflector.titleize(before))
+    end
+  end
+
   def test_camelize
     CamelToUnderscore.each do |camel, underscore|
       assert_equal(camel, Inflector.camelize(underscore))