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#ifndef DYNAMIC_DEPTH_INTERNAL_XMPMETA_XML_SEARCH_H_ // NOLINT
#define DYNAMIC_DEPTH_INTERNAL_XMPMETA_XML_SEARCH_H_ // NOLINT
#include <libxml/tree.h>
// Performs searches an XML tree.
namespace photos_editing_formats {
namespace xml {
// Depth-first search on the nodes in this XML doc.
// Performs Depth first search on the child XML elements in order.
// Returns the first child element with a matching node name. If not found,
// returns a null pointer.
xmlNodePtr DepthFirstSearch(const xmlDocPtr parent, const char* name);
// Returns the first child element with a matching prefix and name.
// If prefix is null or empty, this has the same effect as the method abouve.
// Otherwise, the resulting node's namespace and its name must not be null.
xmlNodePtr DepthFirstSearch(const xmlDocPtr parent, const char* prefix,
const char* name);
// Depth-first search on the parent, for a child element with the given name.
// The element name excludes its prefix.
// Returns a null pointer if no matching element is found.
xmlNodePtr DepthFirstSearch(const xmlNodePtr parent, const char* name);
// Returns the first child element with a matching prefix and name.
// If prefix is null or empty, this has the same effect as the method abouve.
// Otherwise, the resulting node's namespace and its name must not be null.
xmlNodePtr DepthFirstSearch(const xmlNodePtr parent, const char* prefix,
const char* name);
} // namespace xml
} // namespace photos_editing_formats
#endif // DYNAMIC_DEPTH_INTERNAL_XMPMETA_XML_SEARCH_H_ // NOLINT
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