Convert legacy tab indentation to spaces and remove trailing whitespace from all lines

lib/liquid/file_system.rb

@@ -1,7 +1,7 @@
 module Liquid
   # A Liquid file system is way to let your templates retrieve other templates for use with the include tag.
   #
-  # You can implement subclasses that retrieve templates from the database, from the file system using a different 
+  # You can implement subclasses that retrieve templates from the database, from the file system using a different
   # path structure, you can provide them as hard-coded inline strings, or any manner that you see fit.
   #
   # You can add additional instance variables, arguments, or methods as needed.
@@ -18,7 +18,7 @@ module Liquid
       raise FileSystemError, "This liquid context does not allow includes."
     end
   end
-  
+
   # This implements an abstract file system which retrieves template files named in a manner similar to Rails partials,
   # ie. with the template name prefixed with an underscore. The extension ".liquid" is also added.
   #
@@ -27,36 +27,36 @@ module Liquid
   # Example:
   #
   # file_system = Liquid::LocalFileSystem.new("/some/path")
-  # 
+  #
   # file_system.full_path("mypartial")       # => "/some/path/_mypartial.liquid"
   # file_system.full_path("dir/mypartial")   # => "/some/path/dir/_mypartial.liquid"
   #
   class LocalFileSystem
     attr_accessor :root
-    
+
     def initialize(root)
       @root = root
     end
-    
+
     def read_template_file(template_path, context)
       full_path = full_path(template_path)
       raise FileSystemError, "No such template '#{template_path}'" unless File.exists?(full_path)
-      
+
       File.read(full_path)
     end
-    
+
     def full_path(template_path)
       raise FileSystemError, "Illegal template name '#{template_path}'" unless template_path =~ /^[^.\/][a-zA-Z0-9_\/]+$/
-      
+
       full_path = if template_path.include?('/')
         File.join(root, File.dirname(template_path), "_#{File.basename(template_path)}.liquid")
       else
         File.join(root, "_#{template_path}.liquid")
       end
-      
+
       raise FileSystemError, "Illegal template path '#{File.expand_path(full_path)}'" unless File.expand_path(full_path) =~ /^#{File.expand_path(root)}/
-      
+
       full_path
     end
   end
-end
+end