Sniffer::feed_or_html(): string

205    public function feed_or_html()206    {207        $len = strlen($this->file->body);208        $pos = strspn($this->file->body, "\x09\x0A\x0D\x20\xEF\xBB\xBF");209 210        while ($pos < $len) {211            switch ($this->file->body[$pos]) {212                case "\x09":213                case "\x0A":214                case "\x0D":215                case "\x20":216                    $pos += strspn($this->file->body, "\x09\x0A\x0D\x20", $pos);217                    continue 2;218 219                case '<':220                    $pos++;221                    break;222 223                default:224                    return 'text/html';225            }226 227            if (substr($this->file->body, $pos, 3) === '!--') {228                $pos += 3;229                if ($pos < $len && ($pos = strpos($this->file->body, '-->', $pos)) !== false) {230                    $pos += 3;231                } else {232                    return 'text/html';233                }234            } elseif (substr($this->file->body, $pos, 1) === '!') {235                if ($pos < $len && ($pos = strpos($this->file->body, '>', $pos)) !== false) {236                    $pos++;237                } else {238                    return 'text/html';239                }240            } elseif (substr($this->file->body, $pos, 1) === '?') {241                if ($pos < $len && ($pos = strpos($this->file->body, '?>', $pos)) !== false) {242                    $pos += 2;243                } else {244                    return 'text/html';245                }246            } elseif (substr($this->file->body, $pos, 3) === 'rss'247                || substr($this->file->body, $pos, 7) === 'rdf:RDF') {248                return 'application/rss+xml';249            } elseif (substr($this->file->body, $pos, 4) === 'feed') {250                return 'application/atom+xml';251            } else {252                return 'text/html';253            }254        }255 256        return 'text/html';257    }