FILTRE POUR NEWSLETTERS GMAIL

<?

$coco = filtrage($string);
echo $coco;

function search_name_class($class)
{
  $long = strlen($class);
  $i = 0;
  if ($class[$i] == "\"")
    {
      $i++;
      while ($i < $long)
        {
          if ($class[$i] == "\"")
            {
              $i--;
              break;
            }
          $i++;
        }
      return(substr($class, 1, $i));
    }
  return(NULL);
}

function isclass($newsletter, $i)
{
  global $globu;     $tmp=substr($newsletter,$i,6);                                                                                                                                          
  if ($tmp == "class=" || $tmp == "CLASS=")
    {  
      $class = substr($newsletter, $i + 6);
      return (search_name_class($class));
    }
  return (0);
}

function check_end_balise($tmp, $balise)
{
  $i = 0;
  $long = strlen($tmp);
  if ($tmp[0] == '/')
    $i++;
  while ($i < $long && $tmp[$i] != '\t' && $tmp[$i] != ' ')
    $i++;
  if ($tmp[0] == '/')
    $bal = substr($tmp, 1, $i);
  else
    $bal = substr($tmp, 0, $i);
  $sav = $i;
  while ($i < $long)
    {
      if (($class = isclass($tmp, $i)))
        break;
      $i++;
    }
  if ($tmp[0] == '/')
    {
      $i = 0;
      while ($balise[$i])
        {
          $check_bal = substr($balise[$i], 0, strlen($bal));
          if ($check_bal === $bal)
            $balise[$i] = "None";
          $i++;
        }
    }
  else
    $balise[] = $bal . ' ' . $class;
  return ($balise);
}

function check_balise($newsletter, $i, $balise)
{
  $i++;
  $j = $i;
  $long = strlen($newsletter);

  while ($i < $long && $newsletter[$i] != '>')
    $i++;
  $tmp = substr($newsletter, $j, $i - $j);
  $balise = check_end_balise($tmp, $balise);
  return ($balise);
}
function filtrage($newsletter)
{
  $letter = $newsletter;
  $i = 0;
  $long = strlen($newsletter);
  while ($i < $long)
    {                                                                                                    
      if (($class = isclass($newsletter, $i)))        {                                                                                                                       
          $letter = replace_css($newsletter, $i, $class, $letter);
	}
      $i++;
    }
  return ($letter);
}

function search_div($div, $class)
{                                                                                               
  $long = strlen($div);
  $i = 0;
  while ($i < $long && $div[$i] != '{')
    $i++;
  $i++;
  $j = 0;
  while ($j < $long && $div[$j] != '}')
    $j++;
  $div = substr($div, $i, $j - $i);                                                                                                          
  return ($div);
}

function search_sub_div($div, $i, $class)
{
  $long = strlen($div);
  while ($i < $long && $div[$i] != '{')
    $i++;
  $i++;
  $j = 0;
  while ($j < $long && $div[$j] != '}')
    $j++;
  $div = substr($div, $i, $j - $i);
  return ($div);
}
function is_div_class($newsletter, $i, $class)
{
  if ($newsletter[$i] == ".")
    {
      $div = substr($newsletter, $i + 1);
      $j = 0;
      $long = strlen($div);
      while ($j < $long)
        {
          if ($div[$j] == " " || $div[$j] == '\t' || $div[$j] == '{')
            break;
          $j++;
        }
      $i = $j;
      while ($i < $long && $div[$i] != '{')
        {
          if ($div[$i] != " " && $div[$i] != '\t')
            {
              if ($class == substr($div, $i, $i - $j))
                return (search_sub_div($div, $i, $class));
              else
                return (NULL);
            }
          $i++;
	}
      if ($class == substr($div, 0, $j))
        return (search_div($div, $class));
      return (NULL);
    }
  return (NULL);
}

function css_exist($newsletter, $class)
{
  $long = strlen($newsletter);
  $i = 0;
  while ($i < $long)
    {
      if (($div = is_div_class($newsletter, $i, $class)))
        {
          return ($div);
        }
      $i++;
    }
  return (NULL);
}

function replace_css($newsletter, $i, $class, $letter)
{
	if (($div = css_exist($newsletter, $class)))
    {
      $div = 'style="' . $div . '"';
      $tmp = 'class="' . $class . '"';
	$letter = eregi_replace($tmp, $div, $letter);
    }
  return ($letter);
}
?>