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/* Copyright (C) 2023 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
/*!
* Simple pretty JSON writer.
*/
struct jsonw;
typedef struct jsonw jsonw_t;
/*!
* Create new JSON writer.
*
* @param out Output file stream.
* @param indent Indentation string.
*
* @return JSON writer or NULL for allocation error.
*/
jsonw_t *jsonw_new(FILE *out, const char *indent);
/*!
* Free JSON writer created with jsonw_new.
*/
void jsonw_free(jsonw_t **w);
/*!
* Write null value as JSON.
*/
void jsonw_null(jsonw_t *w, const char *key);
/*!
* Start writing a new object.
*
* The following writes will represent key and value pairs respectively until
* jsonw_end is called.
*/
void jsonw_object(jsonw_t *w, const char *key);
/*!
* Start writing a new list.
*
* The following writes will represent values until jsonw_end is called.
*/
void jsonw_list(jsonw_t *w, const char *key);
/*!
* Write string as JSON. The string will be escaped properly.
*/
void jsonw_str(jsonw_t *w, const char *key, const char *value);
/*!
* Write string with specified length as JSON. The string will be escaped properly, including \0.
*/
void jsonw_str_len(jsonw_t *w, const char *key, const uint8_t *value, size_t len, bool quote);
/*!
* Write unsigned long value as JSON.
*/
void jsonw_ulong(jsonw_t *w, const char *key, unsigned long value);
/*!
* Write integer as JSON.
*/
void jsonw_int(jsonw_t *w, const char *key, int value);
/*!
* Write boolean value as JSON.
*/
void jsonw_bool(jsonw_t *w, const char *key, bool value);
/*!
* Write binary data encoded to HEX as JSON.
*/
void jsonw_hex(jsonw_t *w, const char *key, const uint8_t *data, size_t len);
/*!
* Terminate in-progress object or list.
*/
void jsonw_end(jsonw_t *w);
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