text: #ifndef MUPDF_FITZ_XML_H
  #define MUPDF_FITZ_XML_H
  
  #include "mupdf/fitz/system.h"
  #include "mupdf/fitz/context.h"
  
  /*
  	XML document model
  */
  
  typedef struct fz_xml_s fz_xml;
  
  /*
  	fz_parse_xml: Parse a zero-terminated string into a tree of xml nodes.
  
  	preserve_white: whether to keep or delete all-whitespace nodes.
  */
  fz_xml *fz_parse_xml(fz_context *ctx, unsigned char *buf, size_t len, int preserve_white);
  
  /*
  	fz_xml_prev: Return previous sibling of XML node.
  */
  fz_xml *fz_xml_prev(fz_xml *item);
  
  /*
  	fz_xml_next: Return next sibling of XML node.
  */
  fz_xml *fz_xml_next(fz_xml *item);
  
  /*
  	fz_xml_up: Return parent of XML node.
  */
  fz_xml *fz_xml_up(fz_xml *item);
  
  /*
  	fz_xml_down: Return first child of XML node.
  */
  fz_xml *fz_xml_down(fz_xml *item);
  
  /*
  	fz_xml_is_tag: Return true if the tag name matches.
  */
  int fz_xml_is_tag(fz_xml *item, const char *name);
  
  /*
  	fz_xml_tag: Return tag of XML node. Return NULL for text nodes.
  */
  char *fz_xml_tag(fz_xml *item);
  
  /*
  	fz_xml_att: Return the value of an attribute of an XML node.
  	NULL if the attribute doesn't exist.
  */
  char *fz_xml_att(fz_xml *item, const char *att);
  
  /*
  	fz_xml_text: Return the text content of an XML node.
  	Return NULL if the node is a tag.
  */
  char *fz_xml_text(fz_xml *item);
  
  /*
  	fz_drop_xml: Free the XML node and all its children and siblings.
  */
  void fz_drop_xml(fz_context *doc, fz_xml *item);
  
  /*
  	fz_detach_xml: Detach a node from the tree, unlinking it from its parent.
  */
  void fz_detach_xml(fz_xml *node);
  
  /*
  	fz_debug_xml: Pretty-print an XML tree to stdout.
  */
  void fz_debug_xml(fz_xml *item, int level);
  
  fz_xml *fz_xml_find(fz_xml *item, const char *tag);
  fz_xml *fz_xml_find_next(fz_xml *item, const char *tag);
  fz_xml *fz_xml_find_down(fz_xml *item, const char *tag);
  
  #endif
  