title: lang attribute Vs meta tags charset attribute
body: <p>The w3c points out the use of <code>lang</code> attribute as</p>
  
  <blockquote>
    <p>Assisting search engines</p>
    
    <p>Assisting speech synthesizers</p>
    
    <p>Helping a user agent select glyph variants for high quality typography</p>
    
    <p>Helping a user agent choose a set of quotation marks</p>
    
    <p>Helping a user agent make decisions about hyphenation, ligatures, and
    spacing</p>
    
    <p>Assisting spell checkers and grammar checkers</p>
  </blockquote>
  
  <p>But I found nothing useful for <code>charset</code> attribute of <code>meta</code> tag except for encoding the document</p>
  
  <p>Do <code>charset</code> provide the same functionality as the <code>lang</code> attribute such as <strong><em>assisting speech synthesizers,search engines</em></strong>.......</p>