腾讯QQ微博API接口获取微博内容(10)

$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
            return true;
        }

$node = new simple_html_dom_node($this);
        $node->_[HDOM_INFO_BEGIN] = $this->cursor;
        ++$this->cursor;
        $tag = $this->copy_until($this->token_slash);

// doctype, cdata & comments...
        if (isset($tag[0]) && $tag[0]==='!') {
            $node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until_char('>');

if (isset($tag[2]) && $tag[1]==='-' && $tag[2]==='-') {
                $node->nodetype = HDOM_TYPE_COMMENT;
                $node->tag = 'comment';
            } else {
                $node->nodetype = HDOM_TYPE_UNKNOWN;
                $node->tag = 'unknown';
            }

if ($this->char==='>') $node->_[HDOM_INFO_TEXT].='>';
            $this->link_nodes($node, true);
            $this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
            return true;
        }

// text
        if ($pos=strpos($tag, '<')!==false) {
            $tag = '<' . substr($tag, 0, -1);
            $node->_[HDOM_INFO_TEXT] = $tag;
            $this->link_nodes($node, false);
            $this->char = $this->doc[--$this->pos]; // prev
            return true;
        }

if (!preg_match("/^[\w-:]+$/", $tag)) {
            $node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');
            if ($this->char==='<') {
                $this->link_nodes($node, false);
                return true;
            }

if ($this->char==='>') $node->_[HDOM_INFO_TEXT].='>';
            $this->link_nodes($node, false);
            $this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
            return true;
        }

// begin tag
        $node->nodetype = HDOM_TYPE_ELEMENT;
        $tag_lower = strtolower($tag);
        $node->tag = ($this->lowercase) ? $tag_lower : $tag;

// handle optional closing tags
        if (isset($this->optional_closing_tags[$tag_lower]) ) {
            while (isset($this->optional_closing_tags[$tag_lower][strtolower($this->parent->tag)])) {
                $this->parent->_[HDOM_INFO_END] = 0;
                $this->parent = $this->parent->parent;
            }
            $node->parent = $this->parent;
        }

$guard = 0; // prevent infinity loop
        $space = array($this->copy_skip($this->token_blank), '', '');