2 * Simple streaming JSON writer
4 * This takes care of the annoying bits of JSON syntax like the commas
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
12 * Authors: Stephen Hemminger <stephen@networkplumber.org>
15 #ifndef _JSON_WRITER_H_
16 #define _JSON_WRITER_H_
21 /* Opaque class structure */
22 typedef struct json_writer json_writer_t
;
24 /* Create a new JSON stream */
25 json_writer_t
*jsonw_new(FILE *f
);
26 /* End output to JSON stream */
27 void jsonw_destroy(json_writer_t
**self_p
);
29 /* Cause output to have pretty whitespace */
30 void jsonw_pretty(json_writer_t
*self
, bool on
);
32 /* Add property name */
33 void jsonw_name(json_writer_t
*self
, const char *name
);
36 void jsonw_string(json_writer_t
*self
, const char *value
);
37 void jsonw_bool(json_writer_t
*self
, bool value
);
38 void jsonw_float(json_writer_t
*self
, double number
);
39 void jsonw_uint(json_writer_t
*self
, uint64_t number
);
40 void jsonw_int(json_writer_t
*self
, int64_t number
);
41 void jsonw_null(json_writer_t
*self
);
43 /* Useful Combinations of name and value */
44 void jsonw_string_field(json_writer_t
*self
, const char *prop
, const char *val
);
45 void jsonw_bool_field(json_writer_t
*self
, const char *prop
, bool value
);
46 void jsonw_float_field(json_writer_t
*self
, const char *prop
, double num
);
47 void jsonw_uint_field(json_writer_t
*self
, const char *prop
, uint64_t num
);
48 void jsonw_int_field(json_writer_t
*self
, const char *prop
, int64_t num
);
49 void jsonw_null_field(json_writer_t
*self
, const char *prop
);
52 void jsonw_start_object(json_writer_t
*self
);
53 void jsonw_end_object(json_writer_t
*self
);
55 void jsonw_start_array(json_writer_t
*self
);
56 void jsonw_end_array(json_writer_t
*self
);
58 /* Override default exception handling */
59 typedef void (jsonw_err_handler_fn
)(const char *);
61 #endif /* _JSON_WRITER_H_ */