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dt_node.h

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#ifndef INCLUDED_DT_NODE_H
#define INCLUDED_DT_NODE_H

#include "dt_type.h"

typedef enum { dt_leaf_node, dt_arr_node, dt_rec_node } dt_node_kind;

typedef struct dt_node_ dt_node;

dt_node* dt_make_leaf( dt_byte const* begin, size_t len );
dt_node* dt_make_rec();
dt_node* dt_make_arr();
void dt_node_addref ( dt_node* node );
void dt_node_release( dt_node* node );

enum dt_node_kind dt_node_get_kind( dt_node* node );



dt_bool dt_leaf_get_data( dt_node const* leaf, dt_byte const** begin, size_t* len );



size_t  dt_arr_get_size( dt_node const* arr );
dt_node*   dt_arr_get( dt_node const* arr, unsigned ind );
dt_bool           dt_arr_put( dt_node* arr, unsigned ind, dt_node* item );
dt_bool  dt_arr_append( dt_node* arr, dt_node* item );



size_t  dt_rec_get_size( dt_node const* node );

dt_node*   dt_rec_get( dt_node const* rec, dt_byte const* key, size_t key_len );

dt_node*   dt_rec_sget( dt_node const* rec, char const* key);


dt_bool  dt_rec_put( dt_node* rec, dt_byte const* key, size_t key_len, dt_node* item );

dt_bool  dt_rec_sput( dt_node* rec, char const* key, dt_node* item );


dt_node*   dt_rec_get_nth(  dt_node* rec, unsigned ind
                         , dt_byte const** key, size_t* key_len
                         );

#endif/*INCLUDED_DT_NODE_H*/

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