tippecanoe/jsonpull.h

58 lines
1.4 KiB
C
Raw Normal View History

2014-02-06 05:27:48 +00:00
typedef enum json_type {
2014-02-08 00:49:52 +00:00
// These types can be returned by json_read()
JSON_HASH, JSON_ARRAY, JSON_NUMBER, JSON_STRING, JSON_TRUE, JSON_FALSE, JSON_NULL,
2014-02-08 00:01:27 +00:00
2014-02-08 00:49:52 +00:00
// These and JSON_HASH and JSON_ARRAY can be called back by json_read_with_separators()
2014-02-08 00:01:27 +00:00
JSON_COMMA, JSON_COLON,
// These are only used internally as expectations of what comes next
JSON_ITEM, JSON_KEY, JSON_VALUE,
2014-02-06 05:27:48 +00:00
} json_type;
typedef struct json_object {
json_type type;
struct json_object *parent;
char *string;
double number;
struct json_object **array;
struct json_object **keys;
struct json_object **values;
int length;
int expect;
2014-02-06 05:27:48 +00:00
} json_object;
typedef struct json_pull {
char *error;
2014-02-08 02:11:36 +00:00
int line;
2014-02-07 03:22:37 +00:00
int (*read)(struct json_pull *, char *buf, int n);
2014-02-07 03:22:37 +00:00
void *source;
char *buffer;
int buffer_tail;
int buffer_head;
json_object *container;
json_object *root;
} json_pull;
2014-02-07 03:22:37 +00:00
json_pull *json_begin_file(FILE *f);
#if 0
json_pull *json_begin_string(char *s);
#endif
json_pull *json_begin(int (*read)(struct json_pull *, char *buffer, int n), void *source);
void json_end(json_pull *p);
typedef void (*json_separator_callback)(json_type type, json_pull *j, void *state);
json_object *json_read_tree(json_pull *j);
2014-02-08 00:49:52 +00:00
json_object *json_read(json_pull *j);
json_object *json_read_separators(json_pull *j, json_separator_callback cb, void *state);
void json_free(json_object *j);
json_object *json_hash_get(json_object *o, const char *s);