/* vim: set et ts=3 sw=3 sts=3 ft=c:
 *
 * Copyright (C) 2012, 2013, 2014 James McLaughlin et al.  All rights reserved.
 * https://github.com/udp/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.
 */

#include "json.h"

#ifdef _MSC_VER
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdint.h>
#endif

const struct _json_value json_value_none;

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <math.h>

typedef unsigned int json_uchar;

/* There has to be a better way to do this */
static const json_int_t JSON_INT_MAX =
    sizeof(json_int_t) == 1
        ? INT8_MAX
        : (sizeof(json_int_t) == 2
               ? INT16_MAX
               : (sizeof(json_int_t) == 4 ? INT32_MAX : INT64_MAX));

static unsigned char hex_value(json_char c) {
    if (isdigit(c))
        return c - '0';

    switch (c) {
    case 'a':
    case 'A':
        return 0x0A;
    case 'b':
    case 'B':
        return 0x0B;
    case 'c':
    case 'C':
        return 0x0C;
    case 'd':
    case 'D':
        return 0x0D;
    case 'e':
    case 'E':
        return 0x0E;
    case 'f':
    case 'F':
        return 0x0F;
    default:
        return 0xFF;
    }
}

static int would_overflow(json_int_t value, json_char b) {
    return ((JSON_INT_MAX - (b - '0')) / 10) < value;
}

typedef struct {
    unsigned long used_memory;

    unsigned int uint_max;
    unsigned long ulong_max;

    json_settings settings;
    int first_pass;

    const json_char *ptr;
    unsigned int cur_line, cur_col;

} json_state;

static void *default_alloc(size_t size, int zero, void *user_data) {
    return zero ? calloc(1, size) : malloc(size);
}

static void default_free(void *ptr, void *user_data) { free(ptr); }

static void *json_alloc(json_state *state, unsigned long size, int zero) {
    if ((state->ulong_max - state->used_memory) < size)
        return 0;

    if (state->settings.max_memory &&
        (state->used_memory += size) > state->settings.max_memory) {
        return 0;
    }

    return state->settings.mem_alloc(size, zero, state->settings.user_data);
}

static int new_value(json_state *state, json_value **top, json_value **root,
                     json_value **alloc, json_type type) {
    json_value *value;
    int values_size;

    if (!state->first_pass) {
        value = *top = *alloc;
        *alloc = (*alloc)->_reserved.next_alloc;

        if (!*root)
            *root = value;

        switch (value->type) {
        case json_array:

            if (value->u.array.length == 0)
                break;

            if (!(value->u.array.values = (json_value **)json_alloc(
                      state, value->u.array.length * sizeof(json_value *),
                      0))) {
                return 0;
            }

            value->u.array.length = 0;
            break;

        case json_object:

            if (value->u.object.length == 0)
                break;

            values_size =
                sizeof(*value->u.object.values) * value->u.object.length;

            if (!(value->u.object.values = (json_object_entry *)json_alloc(
                      state,
                      values_size + ((unsigned long)value->u.object.values),
                      0))) {
                return 0;
            }

            value->_reserved.object_mem =
                (*(char **)&value->u.object.values) + values_size;

            value->u.object.length = 0;
            break;

        case json_string:

            if (!(value->u.string.ptr = (json_char *)json_alloc(
                      state, (value->u.string.length + 1) * sizeof(json_char),
                      0))) {
                return 0;
            }

            value->u.string.length = 0;
            break;

        default:
            break;
        };

        return 1;
    }

    if (!(value = (json_value *)json_alloc(
              state, sizeof(json_value) + state->settings.value_extra, 1))) {
        return 0;
    }

    if (!*root)
        *root = value;

    value->type = type;
    value->parent = *top;

#ifdef JSON_TRACK_SOURCE
    value->line = state->cur_line;
    value->col = state->cur_col;
#endif

    if (*alloc)
        (*alloc)->_reserved.next_alloc = value;

    *alloc = *top = value;

    return 1;
}

#define whitespace                                                             \
    case '\n':                                                                 \
        ++state.cur_line;                                                      \
        state.cur_col = 0;                                                     \
    case ' ':                                                                  \
    case '\t':                                                                 \
    case '\r'

#define string_add(b)                                                          \
    do {                                                                       \
        if (!state.first_pass)                                                 \
            string[string_length] = b;                                         \
        ++string_length;                                                       \
    } while (0);

#define line_and_col state.cur_line, state.cur_col

static const long flag_next = 1 << 0, flag_reproc = 1 << 1,
                  flag_need_comma = 1 << 2, flag_seek_value = 1 << 3,
                  flag_escaped = 1 << 4, flag_string = 1 << 5,
                  flag_need_colon = 1 << 6, flag_done = 1 << 7,
                  flag_num_negative = 1 << 8, flag_num_zero = 1 << 9,
                  flag_num_e = 1 << 10, flag_num_e_got_sign = 1 << 11,
                  flag_num_e_negative = 1 << 12, flag_line_comment = 1 << 13,
                  flag_block_comment = 1 << 14, flag_num_got_decimal = 1 << 15;

json_value *json_parse_ex(json_settings *settings, const json_char *json,
                          size_t length, char *error_buf) {
    json_char error[json_error_max];
    const json_char *end;
    json_value *top, *root, *alloc = 0;
    json_state state = {0};
    long flags = 0;
    double num_digits = 0, num_e = 0;
    double num_fraction = 0;

    /* Skip UTF-8 BOM
     */
    if (length >= 3 && ((unsigned char)json[0]) == 0xEF &&
        ((unsigned char)json[1]) == 0xBB && ((unsigned char)json[2]) == 0xBF) {
        json += 3;
        length -= 3;
    }

    error[0] = '\0';
    end = (json + length);

    memcpy(&state.settings, settings, sizeof(json_settings));

    if (!state.settings.mem_alloc)
        state.settings.mem_alloc = default_alloc;

    if (!state.settings.mem_free)
        state.settings.mem_free = default_free;

    memset(&state.uint_max, 0xFF, sizeof(state.uint_max));
    memset(&state.ulong_max, 0xFF, sizeof(state.ulong_max));

    state.uint_max -= 8; /* limit of how much can be added before next check */
    state.ulong_max -= 8;

    for (state.first_pass = 1; state.first_pass >= 0; --state.first_pass) {
        json_uchar uchar;
        unsigned char uc_b1, uc_b2, uc_b3, uc_b4;
        json_char *string = 0;
        unsigned int string_length = 0;

        top = root = 0;
        flags = flag_seek_value;

        state.cur_line = 1;

        for (state.ptr = json;; ++state.ptr) {
            json_char b = (state.ptr == end ? 0 : *state.ptr);

            if (flags & flag_string) {
                if (!b) {
                    sprintf(error, "Unexpected EOF in string (at %d:%d)",
                            line_and_col);
                    goto e_failed;
                }

                if (string_length > state.uint_max)
                    goto e_overflow;

                if (flags & flag_escaped) {
                    flags &= ~flag_escaped;

                    switch (b) {
                    case 'b':
                        string_add('\b');
                        break;
                    case 'f':
                        string_add('\f');
                        break;
                    case 'n':
                        string_add('\n');
                        break;
                    case 'r':
                        string_add('\r');
                        break;
                    case 't':
                        string_add('\t');
                        break;
                    case 'u':

                        if (end - state.ptr <= 4 ||
                            (uc_b1 = hex_value(*++state.ptr)) == 0xFF ||
                            (uc_b2 = hex_value(*++state.ptr)) == 0xFF ||
                            (uc_b3 = hex_value(*++state.ptr)) == 0xFF ||
                            (uc_b4 = hex_value(*++state.ptr)) == 0xFF) {
                            sprintf(error,
                                    "Invalid character value `%c` (at %d:%d)",
                                    b, line_and_col);
                            goto e_failed;
                        }

                        uc_b1 = (uc_b1 << 4) | uc_b2;
                        uc_b2 = (uc_b3 << 4) | uc_b4;
                        uchar = (uc_b1 << 8) | uc_b2;

                        if ((uchar & 0xF800) == 0xD800) {
                            json_uchar uchar2;

                            if (end - state.ptr <= 6 ||
                                (*++state.ptr) != '\\' ||
                                (*++state.ptr) != 'u' ||
                                (uc_b1 = hex_value(*++state.ptr)) == 0xFF ||
                                (uc_b2 = hex_value(*++state.ptr)) == 0xFF ||
                                (uc_b3 = hex_value(*++state.ptr)) == 0xFF ||
                                (uc_b4 = hex_value(*++state.ptr)) == 0xFF) {
                                sprintf(
                                    error,
                                    "Invalid character value `%c` (at %d:%d)",
                                    b, line_and_col);
                                goto e_failed;
                            }

                            uc_b1 = (uc_b1 << 4) | uc_b2;
                            uc_b2 = (uc_b3 << 4) | uc_b4;
                            uchar2 = (uc_b1 << 8) | uc_b2;

                            uchar = 0x010000 | ((uchar & 0x3FF) << 10) |
                                    (uchar2 & 0x3FF);
                        }

                        if (sizeof(json_char) >= sizeof(json_uchar) ||
                            (uchar <= 0x7F)) {
                            string_add((json_char)uchar);
                            break;
                        }

                        if (uchar <= 0x7FF) {
                            if (state.first_pass)
                                string_length += 2;
                            else {
                                string[string_length++] = 0xC0 | (uchar >> 6);
                                string[string_length++] = 0x80 | (uchar & 0x3F);
                            }

                            break;
                        }

                        if (uchar <= 0xFFFF) {
                            if (state.first_pass)
                                string_length += 3;
                            else {
                                string[string_length++] = 0xE0 | (uchar >> 12);
                                string[string_length++] =
                                    0x80 | ((uchar >> 6) & 0x3F);
                                string[string_length++] = 0x80 | (uchar & 0x3F);
                            }

                            break;
                        }

                        if (state.first_pass)
                            string_length += 4;
                        else {
                            string[string_length++] = 0xF0 | (uchar >> 18);
                            string[string_length++] =
                                0x80 | ((uchar >> 12) & 0x3F);
                            string[string_length++] =
                                0x80 | ((uchar >> 6) & 0x3F);
                            string[string_length++] = 0x80 | (uchar & 0x3F);
                        }

                        break;

                    default:
                        string_add(b);
                    };

                    continue;
                }

                if (b == '\\') {
                    flags |= flag_escaped;
                    continue;
                }

                if (b == '"') {
                    if (!state.first_pass)
                        string[string_length] = 0;

                    flags &= ~flag_string;
                    string = 0;

                    switch (top->type) {
                    case json_string:

                        top->u.string.length = string_length;
                        flags |= flag_next;

                        break;

                    case json_object:

                        if (state.first_pass)
                            (*(json_char **)&top->u.object.values) +=
                                string_length + 1;
                        else {
                            top->u.object.values[top->u.object.length].name =
                                (json_char *)top->_reserved.object_mem;

                            top->u.object.values[top->u.object.length]
                                .name_length = string_length;

                            (*(json_char **)&top->_reserved.object_mem) +=
                                string_length + 1;
                        }

                        flags |= flag_seek_value | flag_need_colon;
                        continue;

                    default:
                        break;
                    };
                } else {
                    string_add(b);
                    continue;
                }
            }

            if (state.settings.settings & json_enable_comments) {
                if (flags & (flag_line_comment | flag_block_comment)) {
                    if (flags & flag_line_comment) {
                        if (b == '\r' || b == '\n' || !b) {
                            flags &= ~flag_line_comment;
                            --state.ptr; /* so null can be reproc'd */
                        }

                        continue;
                    }

                    if (flags & flag_block_comment) {
                        if (!b) {
                            sprintf(error,
                                    "%d:%d: Unexpected EOF in block comment",
                                    line_and_col);
                            goto e_failed;
                        }

                        if (b == '*' && state.ptr < (end - 1) &&
                            state.ptr[1] == '/') {
                            flags &= ~flag_block_comment;
                            ++state.ptr; /* skip closing sequence */
                        }

                        continue;
                    }
                } else if (b == '/') {
                    if (!(flags & (flag_seek_value | flag_done)) &&
                        top->type != json_object) {
                        sprintf(error, "%d:%d: Comment not allowed here",
                                line_and_col);
                        goto e_failed;
                    }

                    if (++state.ptr == end) {
                        sprintf(error, "%d:%d: EOF unexpected", line_and_col);
                        goto e_failed;
                    }

                    switch (b = *state.ptr) {
                    case '/':
                        flags |= flag_line_comment;
                        continue;

                    case '*':
                        flags |= flag_block_comment;
                        continue;

                    default:
                        sprintf(error,
                                "%d:%d: Unexpected `%c` in comment opening "
                                "sequence",
                                line_and_col, b);
                        goto e_failed;
                    };
                }
            }

            if (flags & flag_done) {
                if (!b)
                    break;

                switch (b) {
                whitespace:
                    continue;

                default:

                    sprintf(error, "%d:%d: Trailing garbage: `%c`",
                            state.cur_line, state.cur_col, b);

                    goto e_failed;
                };
            }

            if (flags & flag_seek_value) {
                switch (b) {
                whitespace:
                    continue;

                case ']':

                    if (top && top->type == json_array)
                        flags = (flags & ~(flag_need_comma | flag_seek_value)) |
                                flag_next;
                    else {
                        sprintf(error, "%d:%d: Unexpected ]", line_and_col);
                        goto e_failed;
                    }

                    break;

                default:

                    if (flags & flag_need_comma) {
                        if (b == ',') {
                            flags &= ~flag_need_comma;
                            continue;
                        } else {
                            sprintf(error, "%d:%d: Expected , before %c",
                                    state.cur_line, state.cur_col, b);

                            goto e_failed;
                        }
                    }

                    if (flags & flag_need_colon) {
                        if (b == ':') {
                            flags &= ~flag_need_colon;
                            continue;
                        } else {
                            sprintf(error, "%d:%d: Expected : before %c",
                                    state.cur_line, state.cur_col, b);

                            goto e_failed;
                        }
                    }

                    flags &= ~flag_seek_value;

                    switch (b) {
                    case '{':

                        if (!new_value(&state, &top, &root, &alloc,
                                       json_object))
                            goto e_alloc_failure;

                        continue;

                    case '[':

                        if (!new_value(&state, &top, &root, &alloc, json_array))
                            goto e_alloc_failure;

                        flags |= flag_seek_value;
                        continue;

                    case '"':

                        if (!new_value(&state, &top, &root, &alloc,
                                       json_string))
                            goto e_alloc_failure;

                        flags |= flag_string;

                        string = top->u.string.ptr;
                        string_length = 0;

                        continue;

                    case 't':

                        if ((end - state.ptr) < 3 || *(++state.ptr) != 'r' ||
                            *(++state.ptr) != 'u' || *(++state.ptr) != 'e') {
                            goto e_unknown_value;
                        }

                        if (!new_value(&state, &top, &root, &alloc,
                                       json_boolean))
                            goto e_alloc_failure;

                        top->u.boolean = 1;

                        flags |= flag_next;
                        break;

                    case 'f':

                        if ((end - state.ptr) < 4 || *(++state.ptr) != 'a' ||
                            *(++state.ptr) != 'l' || *(++state.ptr) != 's' ||
                            *(++state.ptr) != 'e') {
                            goto e_unknown_value;
                        }

                        if (!new_value(&state, &top, &root, &alloc,
                                       json_boolean))
                            goto e_alloc_failure;

                        flags |= flag_next;
                        break;

                    case 'n':

                        if ((end - state.ptr) < 3 || *(++state.ptr) != 'u' ||
                            *(++state.ptr) != 'l' || *(++state.ptr) != 'l') {
                            goto e_unknown_value;
                        }

                        if (!new_value(&state, &top, &root, &alloc, json_null))
                            goto e_alloc_failure;

                        flags |= flag_next;
                        break;

                    default:

                        if (isdigit(b) || b == '-') {
                            if (!new_value(&state, &top, &root, &alloc,
                                           json_integer))
                                goto e_alloc_failure;

                            if (!state.first_pass) {
                                while (isdigit(b) || b == '+' || b == '-' ||
                                       b == 'e' || b == 'E' || b == '.') {
                                    if ((++state.ptr) == end) {
                                        b = 0;
                                        break;
                                    }

                                    b = *state.ptr;
                                }

                                flags |= flag_next | flag_reproc;
                                break;
                            }

                            flags &= ~(flag_num_negative | flag_num_e |
                                       flag_num_e_got_sign |
                                       flag_num_e_negative | flag_num_zero);

                            num_digits = 0;
                            num_fraction = 0;
                            num_e = 0;

                            if (b != '-') {
                                flags |= flag_reproc;
                                break;
                            }

                            flags |= flag_num_negative;
                            continue;
                        } else {
                            sprintf(error,
                                    "%d:%d: Unexpected %c when seeking value",
                                    line_and_col, b);
                            goto e_failed;
                        }
                    };
                };
            } else {
                switch (top->type) {
                case json_object:

                    switch (b) {
                    whitespace:
                        continue;

                    case '"':

                        if (flags & flag_need_comma) {
                            sprintf(error, "%d:%d: Expected , before \"",
                                    line_and_col);
                            goto e_failed;
                        }

                        flags |= flag_string;

                        string = (json_char *)top->_reserved.object_mem;
                        string_length = 0;

                        break;

                    case '}':

                        flags = (flags & ~flag_need_comma) | flag_next;
                        break;

                    case ',':

                        if (flags & flag_need_comma) {
                            flags &= ~flag_need_comma;
                            break;
                        }

                    default:
                        sprintf(error, "%d:%d: Unexpected `%c` in object",
                                line_and_col, b);
                        goto e_failed;
                    };

                    break;

                case json_integer:
                case json_double:

                    if (isdigit(b)) {
                        ++num_digits;

                        if (top->type == json_integer || flags & flag_num_e) {
                            if (!(flags & flag_num_e)) {
                                if (flags & flag_num_zero) {
                                    sprintf(error,
                                            "%d:%d: Unexpected `0` before `%c`",
                                            line_and_col, b);
                                    goto e_failed;
                                }

                                if (num_digits == 1 && b == '0')
                                    flags |= flag_num_zero;
                            } else {
                                flags |= flag_num_e_got_sign;
                                num_e = (num_e * 10) + (b - '0');
                                continue;
                            }

                            if (would_overflow(top->u.integer, b)) {
                                --num_digits;
                                --state.ptr;
                                top->type = json_double;
                                top->u.dbl = (double)top->u.integer;
                                continue;
                            }

                            top->u.integer = (top->u.integer * 10) + (b - '0');
                            continue;
                        }

                        if (flags & flag_num_got_decimal)
                            num_fraction = (num_fraction * 10) + (b - '0');
                        else
                            top->u.dbl = (top->u.dbl * 10) + (b - '0');

                        continue;
                    }

                    if (b == '+' || b == '-') {
                        if ((flags & flag_num_e) &&
                            !(flags & flag_num_e_got_sign)) {
                            flags |= flag_num_e_got_sign;

                            if (b == '-')
                                flags |= flag_num_e_negative;

                            continue;
                        }
                    } else if (b == '.' && top->type == json_integer) {
                        if (!num_digits) {
                            sprintf(error, "%d:%d: Expected digit before `.`",
                                    line_and_col);
                            goto e_failed;
                        }

                        top->type = json_double;
                        top->u.dbl = (double)top->u.integer;

                        flags |= flag_num_got_decimal;
                        num_digits = 0;
                        continue;
                    }

                    if (!(flags & flag_num_e)) {
                        if (top->type == json_double) {
                            if (!num_digits) {
                                sprintf(error,
                                        "%d:%d: Expected digit after `.`",
                                        line_and_col);
                                goto e_failed;
                            }

                            top->u.dbl += num_fraction / pow(10.0, num_digits);
                        }

                        if (b == 'e' || b == 'E') {
                            flags |= flag_num_e;

                            if (top->type == json_integer) {
                                top->type = json_double;
                                top->u.dbl = (double)top->u.integer;
                            }

                            num_digits = 0;
                            flags &= ~flag_num_zero;

                            continue;
                        }
                    } else {
                        if (!num_digits) {
                            sprintf(error, "%d:%d: Expected digit after `e`",
                                    line_and_col);
                            goto e_failed;
                        }

                        top->u.dbl *=
                            pow(10.0,
                                (flags & flag_num_e_negative ? -num_e : num_e));
                    }

                    if (flags & flag_num_negative) {
                        if (top->type == json_integer)
                            top->u.integer = -top->u.integer;
                        else
                            top->u.dbl = -top->u.dbl;
                    }

                    flags |= flag_next | flag_reproc;
                    break;

                default:
                    break;
                };
            }

            if (flags & flag_reproc) {
                flags &= ~flag_reproc;
                --state.ptr;
            }

            if (flags & flag_next) {
                flags = (flags & ~flag_next) | flag_need_comma;

                if (!top->parent) {
                    /* root value done */

                    flags |= flag_done;
                    continue;
                }

                if (top->parent->type == json_array)
                    flags |= flag_seek_value;

                if (!state.first_pass) {
                    json_value *parent = top->parent;

                    switch (parent->type) {
                    case json_object:

                        parent->u.object.values[parent->u.object.length].value =
                            top;

                        break;

                    case json_array:

                        parent->u.array.values[parent->u.array.length] = top;

                        break;

                    default:
                        break;
                    };
                }

                if ((++top->parent->u.array.length) > state.uint_max)
                    goto e_overflow;

                top = top->parent;

                continue;
            }
        }

        alloc = root;
    }

    return root;

e_unknown_value:

    sprintf(error, "%d:%d: Unknown value", line_and_col);
    goto e_failed;

e_alloc_failure:

    strcpy(error, "Memory allocation failure");
    goto e_failed;

e_overflow:

    sprintf(error, "%d:%d: Too long (caught overflow)", line_and_col);
    goto e_failed;

e_failed:

    if (error_buf) {
        if (*error)
            strcpy(error_buf, error);
        else
            strcpy(error_buf, "Unknown error");
    }

    if (state.first_pass)
        alloc = root;

    while (alloc) {
        top = alloc->_reserved.next_alloc;
        state.settings.mem_free(alloc, state.settings.user_data);
        alloc = top;
    }

    if (!state.first_pass)
        json_value_free_ex(&state.settings, root);

    return 0;
}

json_value *json_parse(const json_char *json, size_t length) {
    json_settings settings = {0};
    return json_parse_ex(&settings, json, length, 0);
}

void json_value_free_ex(json_settings *settings, json_value *value) {
    json_value *cur_value;

    if (!value)
        return;

    value->parent = 0;

    while (value) {
        switch (value->type) {
        case json_array:

            if (!value->u.array.length) {
                settings->mem_free(value->u.array.values, settings->user_data);
                break;
            }

            value = value->u.array.values[--value->u.array.length];
            continue;

        case json_object:

            if (!value->u.object.length) {
                settings->mem_free(value->u.object.values, settings->user_data);
                break;
            }

            value = value->u.object.values[--value->u.object.length].value;
            continue;

        case json_string:

            settings->mem_free(value->u.string.ptr, settings->user_data);
            break;

        default:
            break;
        };

        cur_value = value;
        value = value->parent;
        settings->mem_free(cur_value, settings->user_data);
    }
}

void json_value_free(json_value *value) {
    json_settings settings = {0};
    settings.mem_free = default_free;
    json_value_free_ex(&settings, value);
}
