489 struct _xmlNode {  struct
493     struct _xmlNode *children;	/* parent->childs link */  argument
494     struct _xmlNode *last;	/* last child link */  argument
495     struct _xmlNode *parent;	/* child->parent link */  argument
496     struct _xmlNode *next;	/* next sibling link  */  argument
497     struct _xmlNode *prev;	/* previous sibling link  */  argument
498     struct _xmlDoc  *doc;	/* the containing document */
501     xmlNs           *ns;        /* pointer to the associated namespace */
502     xmlChar         *content;   /* the content */
503     struct _xmlAttr *properties;/* properties list */
504     xmlNs           *nsDef;     /* namespace definitions on this node */
505     void            *psvi;	/* for type/PSVI informations */
506     unsigned short   line;	/* line number */
507     unsigned short   extra;	/* extra data for XPath/XSLT */