protected function analyzeHtml($html, &$more = null)
{
$pos = 0;
$tags = array();
preg_match_all("/<(\\/?)(div|table)[^>]*>/isU", $html, $tags, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
$depth = 0;
$chunks = array();
foreach ($tags as $tag) {
$tagcontent = $tag[0][0];
$tagstartpos = $tag[0][1];
$tagendpos = $tagstartpos + strlen($tagcontent);
$tagopening = empty($tag[1][0]);
if ($tagopening) {
if ($depth == 0) {
$remnant = trim(substr($html, $pos, $tagstartpos - $pos));
if (!empty($remnant)) {
$chunks[] = array($pos, $tagstartpos - $pos, $remnant, false);
}
$pos = $tagstartpos;
$sectiontagstartpos = $tagstartpos;
$sectiontagcontent = $tagcontent;
}
$depth++;
} else {
$depth--;
if ($depth == 0) {
$id = false;
if (preg_match("/(?:id|class)=[\"']?([^\"'> ]+)[\"'>\t ]/isU", $sectiontagcontent, $matches)) {
$id = $matches[1];
}
$content = trim(substr($html, $sectiontagstartpos, $tagendpos - $sectiontagstartpos));
$chunks[] = array($sectiontagstartpos, $tagendpos - $sectiontagstartpos, $content, $id);
$pos = $tagendpos;
}
if ($depth < 0) {
$depth = 0;
}
}
}
$remnant = trim(substr($html, $pos));
if (!empty($remnant)) {
$chunks[] = array($pos, strlen($html) - $pos, $remnant, false);
}
$notices = array();
foreach ($chunks as $chunk) {
if ($chunk[3]) {
$notice = new EditPageNotice($chunk[2], $chunk[3]);
if ($notice->getSummary() != '') {
$this->notices->add($notice);
$notices[] = $notice;
}
}
}
if (count($notices) < count($chunks)) {
$more = true;
}
return $notices;
}
