/* vim: set et ts=3 sw=3 sts=3 ft=c:
 *
 * Copyright (C) 2012-2021 the json-parser authors  All rights reserved.
 * https://github.com/json-parser/json-parser
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _JSON_H
#define _JSON_H

#ifndef json_char
#define json_char char
#endif

#ifndef json_int_t
#define json_int_t __int64
#endif

#include <stddef.h>

typedef struct {
    unsigned long max_memory; /* should be size_t, but would modify the API */
    int settings;
    size_t value_extra; /* how much extra space to allocate for values? */
} json_settings;

#define json_enable_comments 0x01

typedef enum {
    json_none,
    json_object,
    json_array,
    json_integer,
    json_double,
    json_string,
    json_boolean,
    json_null
} json_type;

extern const struct _json_value json_value_none;

typedef struct _json_object_entry {
    json_char *name;
    unsigned int name_length;
    struct _json_value *value;
} json_object_entry;

typedef struct _json_value {
    struct _json_value *parent;

    json_type type;

    union {
        int boolean;
        json_int_t integer;
        double dbl;

        struct {
            unsigned int length;
            json_char *ptr; /* null terminated */
        } string;

        struct {
            unsigned int length;
            json_object_entry *values;
        } object;

        struct {
            unsigned int length;
            struct _json_value **values;
        } array;
    } u;

    union {
        struct _json_value *next_alloc;
        void *object_mem;
    } _reserved;

#ifdef JSON_TRACK_SOURCE
    unsigned int line, col;
#endif

} json_value;

json_value *json_parse(const json_char *json, size_t length);

#define json_error_max 128
json_value *json_parse_ex(json_settings *settings, const json_char *json, size_t length, char *error);

void json_value_free(json_value *);

#endif