title: Arabic characters issue
body: <p>I have some problems with displaying some Arabic text in my iPhone application. When I am displaying it on a <code>UILabel</code>, it shows like <code>?????? ????? ??????</code> The string comes from server as XML, I parse it and display on a UILabel. I dont know this is due to a problem in iPhone or from Server side. </p>
  
  <ul>
  <li><p>I want to know how can I determine the string coming from server is having correct encoding and is a valid Arabic characters.</p></li>
  <li><p>Is it suffice to print value each character and check it lies between Arabic Unicode characters. (Like ASCII value of character A is 65 and that of Z is 90. So a value 70 must be a ASCII character). </p></li>
  <li><p>In server the string is encoded with UTF8 encoding. And server program written in c#. What is the write encoding method to transfer Arabic text from server to iPhone? </p></li>
  <li><p>Do I need to use other fonts to display Arabic characters correctly. </p></li>
  <li><p>Is there any XML file with Arabic content in Internet, from where I can parse and display arabic text correctly?</p></li>
  </ul>
  
  <p>Thanks in advance..</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>When I NSLogged XML data I got same <code>???? ???? ???</code> characters.</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>See a XML styled data that I got in console.</p>
  
  <pre><code>&lt;CB_SEC_COMP&gt;
  &lt;SC_COMP_ID&gt;9999&lt;/SC_COMP_ID&gt;
  &lt;SCA_LONG_NAME&gt;???? ????? ?????????? ????? ?????????&lt;/SCA_LONG_NAME&gt;
  &lt;SCE_LONG_NAME&gt;CHINA SECURITY &amp;amp; SURVEILLANCE TECHNOLOGY, INC.&lt;/SCE_LONG_NAME&gt;
  &lt;SCA_SHORT_NAME&gt;???? ????? ?????????&lt;/SCA_SHORT_NAME&gt;
  &lt;SCE_SHORT_NAME&gt;CHINA SECURITY &amp;amp; SUR&lt;/SCE_SHORT_NAME&gt;
  &lt;SC_MRK_CODE&gt;9&lt;/SC_MRK_CODE&gt;
  &lt;SC_SEC_CODE&gt;86&lt;/SC_SEC_CODE&gt;
  &lt;SC_STATUS&gt;Y&lt;/SC_STATUS&gt;
  &lt;TICKER_ID&gt;CSR&lt;/TICKER_ID&gt;
  &lt;SC_MRK_TYPE_CODE&gt;0001&lt;/SC_MRK_TYPE_CODE&gt;
  &lt;SC_EXCHANGE&gt;DFM&lt;/SC_EXCHANGE&gt;
  &lt;CUR_CODE&gt;AED&lt;/CUR_CODE&gt;
  &lt;/CB_SEC_COMP&gt;
  </code></pre>