not use htmlentities gem in rfpdf plugin (#13138)

Contributed by Jun NAITOH.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11399 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/plugins/rfpdf/README

@@ -10,10 +10,6 @@ A template plugin allowing the inclusion of ERB-enabled RFPDF template files.
 ==
 ==
 
-If you are using HTML, it is recommended you install:
-
-gem install -r htmlentities
-
 TCPDF Documentation located at:
 
 http://phpdocs.moodle.org/com-tecnick-tcpdf/TCPDF.html

lib/plugins/rfpdf/init.rb

@@ -1,8 +1,3 @@
-begin
-  require('htmlentities') 
-rescue LoadError
-  # This gem is not required - just nice to have.
-end
 require('cgi')
 require 'rfpdf'
 

lib/plugins/rfpdf/lib/tcpdf.rb

@@ -94,8 +94,6 @@ class TCPDF
   cattr_accessor :k_path_url_cache
   @@k_path_url_cache = Rails.root.join('tmp')
   
-  cattr_accessor :decoder
-		
 	attr_accessor :barcode
 	
 	attr_accessor :buffer
@@ -223,12 +221,6 @@ class TCPDF
 		#Some checks
 		dochecks();
 		
-		begin	  
-		  @@decoder = HTMLEntities.new 
-		rescue
-		  @@decoder = nil
-		end
-		
 		#Initialization of properties
   	@barcode ||= false
 		@buffer ||= ''
@@ -4344,11 +4336,7 @@ class TCPDF
 	# @return string converted
 	#
 	def unhtmlentities(string)
-	  if @@decoder.nil?
       CGI.unescapeHTML(string)
-    else
-  	  @@decoder.decode(string)
-    end
   end
   
 end # END OF CLASS