_xmlNs            348 third_party/libxml/src/include/libxml/tree.h typedef struct _xmlNs xmlNs;
_xmlNs            351 third_party/libxml/src/include/libxml/tree.h     struct _xmlNs  *next;	/* next Ns link for this node  */
_xmlNs            534 third_party/libxml/src/include/libxml/tree.h     struct _xmlNs   *oldNs;	/* Global namespace, the old way */