#ifndef _HASH_H_
#define _HASH_H_
/* hash table for storing parsed column data and later merging it into a template file
* Example:
* if sqlite resulted in a array with following data via sqlite3_get_table function
* id | name
* ---+-----
* 1 | Tim
* 2 | Bob
*
* then you may store this data in this hash table by
*
* t = new_table(results); where results was the 3rd param of sqlite3_get_table function
*
* after, you can apply template later using functions in template.h
*
*
* err... maybe this is a bad design
*/
#define BUCKET_SIZE 10
//if you need to parse the value before printing
typedef void printer(char *, const char *);
typedef struct hash {
char *key;
char *val;
printer *print_f;
struct hash *next; //for collision
} hash_t;
typedef hash_t *hash_table[BUCKET_SIZE];
void hash_table_init(hash_table h);
/* only frees the structs not the strings
* you do that yourself!
* so DO NOT call this unless you have already manually removed all the strings
* if you are using clog, then just call sqlite3_free_table */
void hash_free(hash_table h);
/* this function does NOT copy *key, *val
* so, once you are done with the hash table
* your have to free those strings!
* if you are using this in the context of clog
* you can just use sqlite3_free_table */
void hash_add(hash_table h, char *key, char *val, printer *f);
void hash_print(hash_table table, char *key, const char *param);
void hash_print_all(hash_table table);
hash_t *hash_find(hash_table table, char *key);
int hasher(char *key);
#endif
