/**
* Turns HTML into text browser visible text. Images
* are converted to their alt text and tags are supressed.
* Entities are converted to their visible representation.
* @param string $html HTML to convert.
* @return string Plain text.
* @access public
* @static
*/
function normalise($html)
{
$text = preg_replace('|<img.*?alt\\s*=\\s*"(.*?)".*?>|', ' \\1 ', $html);
$text = preg_replace('|<img.*?alt\\s*=\\s*\'(.*?)\'.*?>|', ' \\1 ', $text);
$text = preg_replace('|<img.*?alt\\s*=\\s*([a-zA-Z_]+).*?>|', ' \\1 ', $text);
$text = preg_replace('|<.*?>|', '', $text);
$text = SimpleSaxParser::decodeHtml($text);
$text = preg_replace('|\\s+|', ' ', $text);
return trim($text);
}
