Hi all

Any body can help me with this str_replace problem.

thanks

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class String
  def str_replace(str_in,str_out,string = self.to_s)       
    result = String.new   
    str_in_counter = 0      
    string_pointer = 0
    str_in_counter = 0
   
   
    if str_in.length <= 1   
   
        string.length.times{      
            if string[string_pointer] == str_in           
                result += str_out  
            else          
                result +=  string[string_pointer] 
            end        
        }
       
    else 
       
        buffer = '' 
        string.length.times{       
            if string[string_pointer].to_s == str_in[str_in_counter].to_s
                buffer += string_array[string_pointer].dup
                if buffer.length  == str_in_length           
                    result += str_out  
                    str_in_counter = -1
                    buffer =''  
                end       
            else          
                result += buffer + string[string_pointer]
                str_in_counter = -1
                buffer = ''
            end
            str_in_counter += 1
            string_pointer += 1
        } 

    end
  
    result   
  end



require 'test/unit'

class Test_string_replace < Test::Unit::TestCase 
 
  def test_replace
      check = '03'
      source = 'aa0a3aa'
      assert_equal(check,source.str_replace('a',''))  
     
      check = '03'
      source = 'aaaaaa0aaaa3aaaaaaaa'
      assert_equal(check,source.str_ireplace('aa',''))  
   
  end

end