Added option to ERB templates to swallow newlines by using <% if something -%> instead of just <% if something %>

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@121 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,37 @@
 *SVN*
 
+* Added option to ERB templates to swallow newlines by using <% if something -%> instead of just <% if something %>. Example:
+
+    class SomeController < AbstractApplicationController
+    <% if options[:scaffold] %>
+      scaffold :<%= singular_name %>
+    <% end %>
+      helper :post
+  
+  ...produces this on post as singular_name:
+
+    class SomeController < AbstractApplicationController
+    
+      scaffold :post
+    
+      helper :post
+  
+  ...where as:
+
+    class SomeController < AbstractApplicationController
+    <% if options[:scaffold] -%>
+      scaffold :<%= singular_name %>
+    <% end -%>
+      helper :post
+  
+  ...produces:
+
+    class SomeController < AbstractApplicationController
+      scaffold :post
+      helper :post
+  
+  [This undocumented gem for ERb was uncovered by bitsweat]
+
 * Fixed CgiRequest so that it'll now accept session options with Symbols as keys (as the documentation points out) [Suggested by Andreas]
 
 * Added that render_partial will always by default include a counter with value 1 unless there is a counter passed in via the 

actionpack/lib/action_view/base.rb

@@ -251,7 +251,7 @@ module ActionView #:nodoc:
       end
 
       def rhtml_render(template, binding)
-        @@compiled_erb_templates[template] ||= ERB.new(template)
+        @@compiled_erb_templates[template] ||= ERB.new(template, nil, '-')
         @@compiled_erb_templates[template].result(binding)
       end