cJSON.c File Reference

#include <string.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <limits.h>
#include <ctype.h>
#include "switch_cJSON.h"

Include dependency graph for cJSON.c:

Go to the source code of this file.

Data Structures
struct	error
struct	internal_hooks
struct	parse_buffer
struct	printbuffer

Macros
#define	true   ((cJSON_bool)1)
#define	false   ((cJSON_bool)0)
#define	internal_malloc   malloc
#define	internal_free   free
#define	internal_realloc   realloc
#define	static_strlen(string_literal)   (sizeof(string_literal) - sizeof(""))
#define	can_read(buffer, size)   ((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))
#define	can_access_at_index(buffer, index)   ((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))
#define	cannot_access_at_index(buffer, index)   (!can_access_at_index(buffer, index))
#define	buffer_at_offset(buffer)   ((buffer)->content + (buffer)->offset)
#define	cjson_min(a, b)   ((a < b) ? a : b)

Typedefs
typedef struct internal_hooks	internal_hooks

Functions
	CJSON_PUBLIC (const char *)
	CJSON_PUBLIC (char *)
static int	case_insensitive_strcmp (const unsigned char *string1, const unsigned char *string2)
static unsigned char *	cJSON_strdup (const unsigned char *string, const internal_hooks *const hooks)
	CJSON_PUBLIC (void)
static cJSON *	cJSON_New_Item (const internal_hooks *const hooks)
static unsigned char	get_decimal_point (void)
static cJSON_bool	parse_number (cJSON *const item, parse_buffer *const input_buffer)
	CJSON_PUBLIC (double)
static unsigned char *	ensure (printbuffer *const p, size_t needed)
static void	update_offset (printbuffer *const buffer)
static cJSON_bool	print_number (const cJSON *const item, printbuffer *const output_buffer)
static unsigned	parse_hex4 (const unsigned char *const input)
static unsigned char	utf16_literal_to_utf8 (const unsigned char *const input_pointer, const unsigned char *const input_end, unsigned char **output_pointer)
static cJSON_bool	parse_string (cJSON *const item, parse_buffer *const input_buffer)
static cJSON_bool	print_string_ptr (const unsigned char *const input, printbuffer *const output_buffer)
static cJSON_bool	print_string (const cJSON *const item, printbuffer *const p)
static cJSON_bool	parse_value (cJSON *const item, parse_buffer *const input_buffer)
static cJSON_bool	print_value (const cJSON *const item, printbuffer *const output_buffer)
static cJSON_bool	parse_array (cJSON *const item, parse_buffer *const input_buffer)
static cJSON_bool	print_array (const cJSON *const item, printbuffer *const output_buffer)
static cJSON_bool	parse_object (cJSON *const item, parse_buffer *const input_buffer)
static cJSON_bool	print_object (const cJSON *const item, printbuffer *const output_buffer)
static parse_buffer *	buffer_skip_whitespace (parse_buffer *const buffer)
static parse_buffer *	skip_utf8_bom (parse_buffer *const buffer)
	CJSON_PUBLIC (cJSON *)
static unsigned char *	print (const cJSON *const item, cJSON_bool format, const internal_hooks *const hooks)
	CJSON_PUBLIC (cJSON_bool)
static cJSON *	get_array_item (const cJSON *array, size_t index)
static cJSON *	get_object_item (const cJSON *const object, const char *const name, const cJSON_bool case_sensitive)
static void	suffix_object (cJSON *prev, cJSON *item)
static cJSON *	create_reference (const cJSON *item, const internal_hooks *const hooks)
static cJSON_bool	add_item_to_array (cJSON *array, cJSON *item)
static void *	cast_away_const (const void *string)
static cJSON_bool	add_item_to_object (cJSON *const object, const char *const string, cJSON *const item, const internal_hooks *const hooks, const cJSON_bool constant_key)
static cJSON_bool	replace_item_in_object (cJSON *object, const char *string, cJSON *replacement, cJSON_bool case_sensitive)
static void	skip_oneline_comment (char **input)
static void	skip_multiline_comment (char **input)
static void	minify_string (char **input, char **output)
	CJSON_PUBLIC (void *)

Variables
static error	global_error = { NULL, 0 }
static internal_hooks	global_hooks = { internal_malloc, internal_free, internal_realloc }

Macro Definition Documentation

buffer_at_offset

#define buffer_at_offset

(

buffer

)

((buffer)->content + (buffer)->offset)

Definition at line 270 of file cJSON.c.

Referenced by buffer_skip_whitespace(), CJSON_PUBLIC(), parse_array(), parse_number(), parse_object(), parse_string(), parse_value(), and skip_utf8_bom().

can_access_at_index

#define can_access_at_index	(		buffer,
			index
	)		((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))

Definition at line 267 of file cJSON.c.

Referenced by buffer_skip_whitespace(), parse_array(), parse_number(), parse_object(), parse_value(), and skip_utf8_bom().

can_read

#define can_read	(		buffer,
			size
	)		((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))

Definition at line 265 of file cJSON.c.

Referenced by parse_value().

cannot_access_at_index

#define cannot_access_at_index	(		buffer,
			index
	)		(!can_access_at_index(buffer, index))

Definition at line 268 of file cJSON.c.

Referenced by parse_array(), and parse_object().

cjson_min

#define cjson_min	(		a,
			b
	)		((a < b) ? a : b)

Definition at line 1092 of file cJSON.c.

Referenced by print().

false

#define false   ((cJSON_bool)0)

Definition at line 66 of file cJSON.c.

internal_free

#define internal_free   free

Definition at line 147 of file cJSON.c.

internal_malloc

#define internal_malloc   malloc

Definition at line 146 of file cJSON.c.

internal_realloc

#define internal_realloc   realloc

Definition at line 148 of file cJSON.c.

static_strlen

#define static_strlen

(

string_literal

)

(sizeof(string_literal) - sizeof(""))

Definition at line 152 of file cJSON.c.

Referenced by minify_string(), skip_multiline_comment(), and skip_oneline_comment().

true

#define true   ((cJSON_bool)1)

Definition at line 61 of file cJSON.c.

Referenced by Event::addBody(), Event::addHeader(), Event::delHeader(), and running().

Typedef Documentation

internal_hooks

typedef struct internal_hooks internal_hooks

Function Documentation

add_item_to_array()

static cJSON_bool add_item_to_array ( cJSON *  array, cJSON *  item  )

static

Definition at line 1847 of file cJSON.c.

References cJSON::child, CJSON_PUBLIC(), item, cJSON::next, and suffix_object().

Referenced by add_item_to_object().

{
    cJSON *child = NULL;

    if ((item == NULL) || (array == NULL))
    {
        return false;
    }

    child = array->child;

    if (child == NULL)
    {
        /* list is empty, start new one */
        array->child = item;
    }
    else
    {
        /* append to the end */
        while (child->next)
        {
            child = child->next;
        }
        suffix_object(child, item);
    }

    return true;
}

add_item_to_object()

static cJSON_bool add_item_to_object ( cJSON *const  object, const char *const  string, cJSON *const  item, const internal_hooks *const  hooks, const cJSON_bool  constant_key  )

static

Definition at line 1898 of file cJSON.c.

References add_item_to_array(), cast_away_const(), cJSON::child, cJSON_Invalid, CJSON_PUBLIC(), cJSON_strdup(), cJSON_StringIsConst, create_reference(), get_array_item(), item, name, newitem, cJSON::next, number, cJSON::prev, raw, replacement, cJSON::string, string, cJSON::type, internal_hooks::void(), and which.

{
    char *new_key = NULL;
    int new_type = cJSON_Invalid;

    if ((object == NULL) || (string == NULL) || (item == NULL))
    {
        return false;
    }

    if (constant_key)
    {
        new_key = (char*)cast_away_const(string);
        new_type = item->type | cJSON_StringIsConst;
    }
    else
    {
        new_key = (char*)cJSON_strdup((const unsigned char*)string, hooks);
        if (new_key == NULL)
        {
            return false;
        }

        new_type = item->type & ~cJSON_StringIsConst;
    }

    if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
    {
        hooks->deallocate(item->string);
    }

    item->string = new_key;
    item->type = new_type;

    return add_item_to_array(object, item);
}

buffer_skip_whitespace()

static parse_buffer* buffer_skip_whitespace ( parse_buffer *const  buffer )

static

Definition at line 970 of file cJSON.c.

References buffer, buffer_at_offset, can_access_at_index, parse_buffer::content, parse_buffer::length, and parse_buffer::offset.

Referenced by CJSON_PUBLIC(), parse_array(), and parse_object().

{
    if ((buffer == NULL) || (buffer->content == NULL))
    {
        return NULL;
    }

    while (can_access_at_index(buffer, 0) && (buffer_at_offset(buffer)[0] <= 32))
    {
       buffer->offset++;
    }

    if (buffer->offset == buffer->length)
    {
        buffer->offset--;
    }

    return buffer;
}

case_insensitive_strcmp()

static int case_insensitive_strcmp ( const unsigned char *  string1, const unsigned char *  string2  )

static

Definition at line 101 of file cJSON.c.

Referenced by get_object_item().

{
    if ((string1 == NULL) || (string2 == NULL))
    {
        return 1;
    }

    if (string1 == string2)
    {
        return 0;
    }

    for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
    {
        if (*string1 == '\0')
        {
            return 0;
        }
    }

    return tolower(*string1) - tolower(*string2);
}

cast_away_const()

static void* cast_away_const ( const void *  string )

static

Definition at line 1889 of file cJSON.c.

References string.

Referenced by add_item_to_object(), and replace_item_in_object().

{
    return (void*)string;
}

cJSON_New_Item()

static cJSON* cJSON_New_Item ( const internal_hooks *const  hooks )

static

Definition at line 209 of file cJSON.c.

References internal_hooks::allocate(), cJSON::child, cJSON_IsReference, CJSON_PUBLIC(), cJSON_StringIsConst, item, memset(), cJSON::next, cJSON::string, cJSON::type, and cJSON::valuestring.

Referenced by CJSON_PUBLIC(), create_reference(), parse_array(), parse_object(), and replace_item_in_object().

{
    cJSON* node = (cJSON*)hooks->allocate(sizeof(cJSON));
    if (node)
    {
        memset(node, '\0', sizeof(cJSON));
    }

    return node;
}

CJSON_PUBLIC() [1/7]

CJSON_PUBLIC

(

const char *

)

Definition at line 74 of file cJSON.c.

References error::json, and error::position.

Referenced by add_item_to_array(), add_item_to_object(), cJSON_New_Item(), CJSON_PUBLIC(), get_array_item(), get_object_item(), minify_string(), print(), print_object(), and replace_item_in_object().

{
    return (const char*) (global_error.json + global_error.position);
}

CJSON_PUBLIC() [2/7]

CJSON_PUBLIC

(

char *

)

Definition at line 79 of file cJSON.c.

References CJSON_PUBLIC(), CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH, and cJSON::valuestring.

                                                       {
    if (!cJSON_IsString(item)) {
        return NULL;
    }

    return item->valuestring;
}

CJSON_PUBLIC() [3/7]

CJSON_PUBLIC

(

void

)

Definition at line 177 of file cJSON.c.

References internal_hooks::allocate(), cJSON_Hooks::malloc_fn(), and internal_hooks::reallocate().

{
    if (hooks == NULL)
    {
        /* Reset hooks */
        global_hooks.allocate = malloc;
        global_hooks.deallocate = free;
        global_hooks.reallocate = realloc;
        return;
    }

    global_hooks.allocate = malloc;
    if (hooks->malloc_fn != NULL)
    {
        global_hooks.allocate = hooks->malloc_fn;
    }

    global_hooks.deallocate = free;
    if (hooks->free_fn != NULL)
    {
        global_hooks.deallocate = hooks->free_fn;
    }

    /* use realloc only if both free and malloc are used */
    global_hooks.reallocate = NULL;
    if ((global_hooks.allocate == malloc) && (global_hooks.deallocate == free))
    {
        global_hooks.reallocate = realloc;
    }
}

CJSON_PUBLIC() [4/7]

CJSON_PUBLIC

(

double

)

Definition at line 350 of file cJSON.c.

References number.

{
    if (number >= INT_MAX)
    {
        object->valueint = INT_MAX;
    }
    else if (number <= (double)INT_MIN)
    {
        object->valueint = INT_MIN;
    }
    else
    {
        object->valueint = (int)number;
    }

    return object->valuedouble = number;
}

CJSON_PUBLIC() [5/7]

CJSON_PUBLIC

(

cJSON *

)

Definition at line 1007 of file cJSON.c.

References buffer, buffer_at_offset, buffer_skip_whitespace(), cJSON_New_Item(), CJSON_PUBLIC(), parse_buffer::content, fail, global_hooks, parse_buffer::hooks, item, error::json, parse_buffer::length, parse_buffer::offset, parse_value(), error::position, skip_utf8_bom(), and value.

{
    parse_buffer buffer = { 0, 0, 0, 0, { 0, 0, 0 } };
    cJSON *item = NULL;

    /* reset error position */
    global_error.json = NULL;
    global_error.position = 0;

    if (value == NULL)
    {
        goto fail;
    }

    buffer.content = (const unsigned char*)value;
    buffer.length = strlen((const char*)value) + sizeof("");
    buffer.offset = 0;
    buffer.hooks = global_hooks;

    item = cJSON_New_Item(&global_hooks);
    if (item == NULL) /* memory fail */
    {
        goto fail;
    }

    if (!parse_value(item, buffer_skip_whitespace(skip_utf8_bom(&buffer))))
    {
        /* parse failure. ep is set. */
        goto fail;
    }

    /* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
    if (require_null_terminated)
    {
        buffer_skip_whitespace(&buffer);
        if ((buffer.offset >= buffer.length) || buffer_at_offset(&buffer)[0] != '\0')
        {
            goto fail;
        }
    }
    if (return_parse_end)
    {
        *return_parse_end = (const char*)buffer_at_offset(&buffer);
    }

    return item;

fail:
    if (item != NULL)
    {
        cJSON_Delete(item);
    }

    if (value != NULL)
    {
        error local_error;
        local_error.json = (const unsigned char*)value;
        local_error.position = 0;

        if (buffer.offset < buffer.length)
        {
            local_error.position = buffer.offset;
        }
        else if (buffer.length > 0)
        {
            local_error.position = buffer.length - 1;
        }

        if (return_parse_end != NULL)
        {
            *return_parse_end = (const char*)local_error.json + local_error.position;
        }

        global_error = local_error;
    }

    return NULL;
}

CJSON_PUBLIC() [6/7]

CJSON_PUBLIC

(

cJSON_bool

)

Definition at line 1191 of file cJSON.c.

References printbuffer::buffer, fmt, printbuffer::format, global_hooks, printbuffer::hooks, printbuffer::length, printbuffer::noalloc, printbuffer::offset, and print_value().

{
    printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };

    if ((len < 0) || (buf == NULL))
    {
        return false;
    }

    p.buffer = (unsigned char*)buf;
    p.length = (size_t)len;
    p.offset = 0;
    p.noalloc = true;
    p.format = fmt;
    p.hooks = global_hooks;

    return print_value(item, &p);
}

CJSON_PUBLIC() [7/7]

CJSON_PUBLIC

(

void *

)

Definition at line 2962 of file cJSON.c.

References internal_hooks::allocate(), and CJSON_PUBLIC().

{
    return global_hooks.allocate(size);
}

cJSON_strdup()

static unsigned char* cJSON_strdup ( const unsigned char *  string, const internal_hooks *const  hooks  )

static

Definition at line 156 of file cJSON.c.

References internal_hooks::allocate(), and length.

Referenced by add_item_to_object(), and replace_item_in_object().

{
    size_t length = 0;
    unsigned char *copy = NULL;

    if (string == NULL)
    {
        return NULL;
    }

    length = strlen((const char*)string) + sizeof("");
    copy = (unsigned char*)hooks->allocate(length);
    if (copy == NULL)
    {
        return NULL;
    }
    memcpy(copy, string, length);

    return copy;
}

create_reference()

static cJSON* create_reference ( const cJSON *  item, const internal_hooks *const  hooks  )

static

Definition at line 1826 of file cJSON.c.

References cJSON_IsReference, cJSON_New_Item(), cJSON::next, cJSON::prev, cJSON::string, and cJSON::type.

Referenced by add_item_to_object().

{
    cJSON *reference = NULL;
    if (item == NULL)
    {
        return NULL;
    }

    reference = cJSON_New_Item(hooks);
    if (reference == NULL)
    {
        return NULL;
    }

    memcpy(reference, item, sizeof(cJSON));
    reference->string = NULL;
    reference->type |= cJSON_IsReference;
    reference->next = reference->prev = NULL;
    return reference;
}

ensure()

static unsigned char* ensure ( printbuffer *const  p, size_t  needed  )

static

Definition at line 380 of file cJSON.c.

References internal_hooks::allocate(), printbuffer::buffer, printbuffer::hooks, length, printbuffer::length, printbuffer::noalloc, printbuffer::offset, and internal_hooks::reallocate().

Referenced by print_array(), print_number(), print_object(), print_string_ptr(), and print_value().

{
    unsigned char *newbuffer = NULL;
    size_t newsize = 0;

    if ((p == NULL) || (p->buffer == NULL))
    {
        return NULL;
    }

    if ((p->length > 0) && (p->offset >= p->length))
    {
        /* make sure that offset is valid */
        return NULL;
    }

    if (needed > INT_MAX)
    {
        /* sizes bigger than INT_MAX are currently not supported */
        return NULL;
    }

    needed += p->offset + 1;
    if (needed <= p->length)
    {
        return p->buffer + p->offset;
    }

    if (p->noalloc) {
        return NULL;
    }

    /* calculate new buffer size */
    if (needed > (INT_MAX / 2))
    {
        /* overflow of int, use INT_MAX if possible */
        if (needed <= INT_MAX)
        {
            newsize = INT_MAX;
        }
        else
        {
            return NULL;
        }
    }
    else
    {
        newsize = needed * 2;
    }

    if (p->hooks.reallocate != NULL)
    {
        /* reallocate with realloc if available */
        newbuffer = (unsigned char*)p->hooks.reallocate(p->buffer, newsize);
        if (newbuffer == NULL)
        {
            p->hooks.deallocate(p->buffer);
            p->length = 0;
            p->buffer = NULL;

            return NULL;
        }
    }
    else
    {
        /* otherwise reallocate manually */
        newbuffer = (unsigned char*)p->hooks.allocate(newsize);
        if (!newbuffer)
        {
            p->hooks.deallocate(p->buffer);
            p->length = 0;
            p->buffer = NULL;

            return NULL;
        }
        if (newbuffer)
        {
            memcpy(newbuffer, p->buffer, p->offset + 1);
        }
        p->hooks.deallocate(p->buffer);
    }
    p->length = newsize;
    p->buffer = newbuffer;

    return newbuffer + p->offset;
}

get_array_item()

static cJSON* get_array_item ( const cJSON *  array, size_t  index  )

static

Definition at line 1742 of file cJSON.c.

References cJSON::child, CJSON_PUBLIC(), index, and cJSON::next.

Referenced by add_item_to_object().

{
    cJSON *current_child = NULL;

    if (array == NULL)
    {
        return NULL;
    }

    current_child = array->child;
    while ((current_child != NULL) && (index > 0))
    {
        index--;
        current_child = current_child->next;
    }

    return current_child;
}

get_decimal_point()

static unsigned char get_decimal_point ( void  )

static

Definition at line 245 of file cJSON.c.

Referenced by parse_number(), and print_number().

{
#ifdef ENABLE_LOCALES
    struct lconv *lconv = localeconv();
    return (unsigned char) lconv->decimal_point[0];
#else
    return '.';
#endif
}

get_object_item()

static cJSON* get_object_item ( const cJSON *const  object, const char *const  name, const cJSON_bool  case_sensitive  )

static

Definition at line 1771 of file cJSON.c.

References case_insensitive_strcmp(), cJSON::child, CJSON_PUBLIC(), cJSON::next, and cJSON::string.

Referenced by minify_string(), and replace_item_in_object().

{
    cJSON *current_element = NULL;

    if ((object == NULL) || (name == NULL))
    {
        return NULL;
    }

    current_element = object->child;
    if (case_sensitive)
    {
        while ((current_element != NULL) && (current_element->string != NULL) && (strcmp(name, current_element->string) != 0))
        {
            current_element = current_element->next;
        }
    }
    else
    {
        while ((current_element != NULL) && (case_insensitive_strcmp((const unsigned char*)name, (const unsigned char*)(current_element->string)) != 0))
        {
            current_element = current_element->next;
        }
    }

    if ((current_element == NULL) || (current_element->string == NULL)) {
        return NULL;
    }

    return current_element;
}

minify_string()

static void minify_string ( char **  input, char **  output  )

static

Definition at line 2667 of file cJSON.c.

References b, case_sensitive, cJSON::child, cJSON_Array, cJSON_ArrayForEach, cJSON_False, cJSON_Invalid, cJSON_NULL, cJSON_Number, cJSON_Object, CJSON_PUBLIC(), cJSON_Raw, cJSON_String, cJSON_True, get_object_item(), cJSON::next, skip_multiline_comment(), skip_oneline_comment(), static_strlen, cJSON::string, cJSON::type, cJSON::valuedouble, cJSON::valuestring, and internal_hooks::void().

                                                       {
    (*output)[0] = (*input)[0];
    *input += static_strlen("\"");
    *output += static_strlen("\"");


    for (; (*input)[0] != '\0'; (void)++(*input), ++(*output)) {
        (*output)[0] = (*input)[0];

        if ((*input)[0] == '\"') {
            (*output)[0] = '\"';
            *input += static_strlen("\"");
            *output += static_strlen("\"");
            return;
        } else if (((*input)[0] == '\\') && ((*input)[1] == '\"')) {
            (*output)[1] = (*input)[1];
            *input += static_strlen("\"");
            *output += static_strlen("\"");
        }
    }
}

parse_array()

static cJSON_bool parse_array ( cJSON *const  item, parse_buffer *const  input_buffer  )

static

Definition at line 1340 of file cJSON.c.

References buffer_at_offset, buffer_skip_whitespace(), can_access_at_index, cannot_access_at_index, cJSON::child, cJSON_Array, CJSON_NESTING_LIMIT, cJSON_New_Item(), parse_buffer::depth, fail, parse_buffer::hooks, cJSON::next, parse_buffer::offset, parse_value(), cJSON::prev, and cJSON::type.

Referenced by parse_value(), and print_string().

{
    cJSON *head = NULL; /* head of the linked list */
    cJSON *current_item = NULL;

    if (input_buffer->depth >= CJSON_NESTING_LIMIT)
    {
        return false; /* to deeply nested */
    }
    input_buffer->depth++;

    if (buffer_at_offset(input_buffer)[0] != '[')
    {
        /* not an array */
        goto fail;
    }

    input_buffer->offset++;
    buffer_skip_whitespace(input_buffer);
    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ']'))
    {
        /* empty array */
        goto success;
    }

    /* check if we skipped to the end of the buffer */
    if (cannot_access_at_index(input_buffer, 0))
    {
        input_buffer->offset--;
        goto fail;
    }

    /* step back to character in front of the first element */
    input_buffer->offset--;
    /* loop through the comma separated array elements */
    do
    {
        /* allocate next item */
        cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
        if (new_item == NULL)
        {
            goto fail; /* allocation failure */
        }

        /* attach next item to list */
        if (head == NULL)
        {
            /* start the linked list */
            current_item = head = new_item;
        }
        else
        {
            /* add to the end and advance */
            current_item->next = new_item;
            new_item->prev = current_item;
            current_item = new_item;
        }

        /* parse next value */
        input_buffer->offset++;
        buffer_skip_whitespace(input_buffer);
        if (!parse_value(current_item, input_buffer))
        {
            goto fail; /* failed to parse value */
        }
        buffer_skip_whitespace(input_buffer);
    }
    while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));

    if (cannot_access_at_index(input_buffer, 0) || buffer_at_offset(input_buffer)[0] != ']')
    {
        goto fail; /* expected end of array */
    }

success:
    input_buffer->depth--;

    item->type = cJSON_Array;
    item->child = head;

    input_buffer->offset++;

    return true;

fail:
    if (head != NULL)
    {
        cJSON_Delete(head);
    }

    return false;
}

parse_hex4()

static unsigned parse_hex4 ( const unsigned char *const  input )

static

Definition at line 547 of file cJSON.c.

Referenced by utf16_literal_to_utf8().

{
    unsigned int h = 0;
    size_t i = 0;

    for (i = 0; i < 4; i++)
    {
        /* parse digit */
        if ((input[i] >= '0') && (input[i] <= '9'))
        {
            h += (unsigned int) input[i] - '0';
        }
        else if ((input[i] >= 'A') && (input[i] <= 'F'))
        {
            h += (unsigned int) 10 + input[i] - 'A';
        }
        else if ((input[i] >= 'a') && (input[i] <= 'f'))
        {
            h += (unsigned int) 10 + input[i] - 'a';
        }
        else /* invalid */
        {
            return 0;
        }

        if (i < 3)
        {
            /* shift left to make place for the next nibble */
            h = h << 4;
        }
    }

    return h;
}

parse_number()

static cJSON_bool parse_number ( cJSON *const  item, parse_buffer *const  input_buffer  )

static

Definition at line 273 of file cJSON.c.

References buffer_at_offset, can_access_at_index, cJSON_Number, parse_buffer::content, get_decimal_point(), number, parse_buffer::offset, cJSON::type, cJSON::valuedouble, and cJSON::valueint.

Referenced by parse_value().

{
    double number = 0;
    unsigned char *after_end = NULL;
    unsigned char number_c_string[64];
    unsigned char decimal_point = get_decimal_point();
    size_t i = 0;

    if ((input_buffer == NULL) || (input_buffer->content == NULL))
    {
        return false;
    }

    /* copy the number into a temporary buffer and replace '.' with the decimal point
     * of the current locale (for strtod)
     * This also takes care of '\0' not necessarily being available for marking the end of the input */
    for (i = 0; (i < (sizeof(number_c_string) - 1)) && can_access_at_index(input_buffer, i); i++)
    {
        switch (buffer_at_offset(input_buffer)[i])
        {
            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
            case '+':
            case '-':
            case 'e':
            case 'E':
                number_c_string[i] = buffer_at_offset(input_buffer)[i];
                break;

            case '.':
                number_c_string[i] = decimal_point;
                break;

            default:
                goto loop_end;
        }
    }
loop_end:
    number_c_string[i] = '\0';

    number = strtod((const char*)number_c_string, (char**)&after_end);
    if (number_c_string == after_end)
    {
        return false; /* parse_error */
    }

    item->valuedouble = number;

    /* use saturation in case of overflow */
    if (number >= INT_MAX)
    {
        item->valueint = INT_MAX;
    }
    else if (number <= (double)INT_MIN)
    {
        item->valueint = INT_MIN;
    }
    else
    {
        item->valueint = (int)number;
    }

    item->type = cJSON_Number;

    input_buffer->offset += (size_t)(after_end - number_c_string);
    return true;
}

parse_object()

static cJSON_bool parse_object ( cJSON *const  item, parse_buffer *const  input_buffer  )

static

Definition at line 1496 of file cJSON.c.

References buffer_at_offset, buffer_skip_whitespace(), can_access_at_index, cannot_access_at_index, cJSON::child, CJSON_NESTING_LIMIT, cJSON_New_Item(), cJSON_Object, parse_buffer::depth, fail, parse_buffer::hooks, cJSON::next, parse_buffer::offset, parse_string(), parse_value(), cJSON::prev, cJSON::string, cJSON::type, and cJSON::valuestring.

Referenced by parse_value(), and print_string().

{
    cJSON *head = NULL; /* linked list head */
    cJSON *current_item = NULL;

    if (input_buffer->depth >= CJSON_NESTING_LIMIT)
    {
        return false; /* to deeply nested */
    }
    input_buffer->depth++;

    if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '{'))
    {
        goto fail; /* not an object */
    }

    input_buffer->offset++;
    buffer_skip_whitespace(input_buffer);
    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '}'))
    {
        goto success; /* empty object */
    }

    /* check if we skipped to the end of the buffer */
    if (cannot_access_at_index(input_buffer, 0))
    {
        input_buffer->offset--;
        goto fail;
    }

    /* step back to character in front of the first element */
    input_buffer->offset--;
    /* loop through the comma separated array elements */
    do
    {
        /* allocate next item */
        cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
        if (new_item == NULL)
        {
            goto fail; /* allocation failure */
        }

        /* attach next item to list */
        if (head == NULL)
        {
            /* start the linked list */
            current_item = head = new_item;
        }
        else
        {
            /* add to the end and advance */
            current_item->next = new_item;
            new_item->prev = current_item;
            current_item = new_item;
        }

        /* parse the name of the child */
        input_buffer->offset++;
        buffer_skip_whitespace(input_buffer);
        if (!parse_string(current_item, input_buffer))
        {
            goto fail; /* failed to parse name */
        }
        buffer_skip_whitespace(input_buffer);

        /* swap valuestring and string, because we parsed the name */
        current_item->string = current_item->valuestring;
        current_item->valuestring = NULL;

        if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != ':'))
        {
            goto fail; /* invalid object */
        }

        /* parse the value */
        input_buffer->offset++;
        buffer_skip_whitespace(input_buffer);
        if (!parse_value(current_item, input_buffer))
        {
            goto fail; /* failed to parse value */
        }
        buffer_skip_whitespace(input_buffer);
    }
    while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));

    if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '}'))
    {
        goto fail; /* expected end of object */
    }

success:
    input_buffer->depth--;

    item->type = cJSON_Object;
    item->child = head;

    input_buffer->offset++;
    return true;

fail:
    if (head != NULL)
    {
        cJSON_Delete(head);
    }

    return false;
}

parse_string()

static cJSON_bool parse_string ( cJSON *const  item, parse_buffer *const  input_buffer  )

static

Definition at line 705 of file cJSON.c.

References internal_hooks::allocate(), buffer_at_offset, cJSON_String, parse_buffer::content, fail, parse_buffer::hooks, parse_buffer::length, parse_buffer::offset, cJSON::type, utf16_literal_to_utf8(), and cJSON::valuestring.

Referenced by parse_object(), and parse_value().

{
    const unsigned char *input_pointer = buffer_at_offset(input_buffer) + 1;
    const unsigned char *input_end = buffer_at_offset(input_buffer) + 1;
    unsigned char *output_pointer = NULL;
    unsigned char *output = NULL;

    /* not a string */
    if (buffer_at_offset(input_buffer)[0] != '\"')
    {
        goto fail;
    }

    {
        /* calculate approximate size of the output (overestimate) */
        size_t allocation_length = 0;
        size_t skipped_bytes = 0;
        while (((size_t)(input_end - input_buffer->content) < input_buffer->length) && (*input_end != '\"'))
        {
            /* is escape sequence */
            if (input_end[0] == '\\')
            {
                if ((size_t)(input_end + 1 - input_buffer->content) >= input_buffer->length)
                {
                    /* prevent buffer overflow when last input character is a backslash */
                    goto fail;
                }
                skipped_bytes++;
                input_end++;
            }
            input_end++;
        }
        if (((size_t)(input_end - input_buffer->content) >= input_buffer->length) || (*input_end != '\"'))
        {
            goto fail; /* string ended unexpectedly */
        }

        /* This is at most how much we need for the output */
        allocation_length = (size_t) (input_end - buffer_at_offset(input_buffer)) - skipped_bytes;
        output = (unsigned char*)input_buffer->hooks.allocate(allocation_length + sizeof(""));
        if (output == NULL)
        {
            goto fail; /* allocation failure */
        }
    }

    output_pointer = output;
    /* loop through the string literal */
    while (input_pointer < input_end)
    {
        if (*input_pointer != '\\')
        {
            *output_pointer++ = *input_pointer++;
        }
        /* escape sequence */
        else
        {
            unsigned char sequence_length = 2;
            if ((input_end - input_pointer) < 1)
            {
                goto fail;
            }

            switch (input_pointer[1])
            {
                case 'b':
                    *output_pointer++ = '\b';
                    break;
                case 'f':
                    *output_pointer++ = '\f';
                    break;
                case 'n':
                    *output_pointer++ = '\n';
                    break;
                case 'r':
                    *output_pointer++ = '\r';
                    break;
                case 't':
                    *output_pointer++ = '\t';
                    break;
                case '\"':
                case '\\':
                case '/':
                    *output_pointer++ = input_pointer[1];
                    break;

                /* UTF-16 literal */
                case 'u':
                    sequence_length = utf16_literal_to_utf8(input_pointer, input_end, &output_pointer);
                    if (sequence_length == 0)
                    {
                        /* failed to convert UTF16-literal to UTF-8 */
                        goto fail;
                    }
                    break;

                default:
                    goto fail;
            }
            input_pointer += sequence_length;
        }
    }

    /* zero terminate the output */
    *output_pointer = '\0';

    item->type = cJSON_String;
    item->valuestring = (char*)output;

    input_buffer->offset = (size_t) (input_end - input_buffer->content);
    input_buffer->offset++;

    return true;

fail:
    if (output != NULL)
    {
        input_buffer->hooks.deallocate(output);
    }

    if (input_pointer != NULL)
    {
        input_buffer->offset = (size_t)(input_pointer - input_buffer->content);
    }

    return false;
}

parse_value()

static cJSON_bool parse_value ( cJSON *const  item, parse_buffer *const  input_buffer  )

static

Definition at line 1211 of file cJSON.c.

References buffer_at_offset, can_access_at_index, can_read, cJSON_False, cJSON_NULL, cJSON_True, parse_buffer::content, parse_buffer::offset, parse_array(), parse_number(), parse_object(), parse_string(), cJSON::type, and cJSON::valueint.

Referenced by CJSON_PUBLIC(), parse_array(), parse_object(), and print_string().

{
    if ((input_buffer == NULL) || (input_buffer->content == NULL))
    {
        return false; /* no input */
    }

    /* parse the different types of values */
    /* null */
    if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "null", 4) == 0))
    {
        item->type = cJSON_NULL;
        input_buffer->offset += 4;
        return true;
    }
    /* false */
    if (can_read(input_buffer, 5) && (strncmp((const char*)buffer_at_offset(input_buffer), "false", 5) == 0))
    {
        item->type = cJSON_False;
        input_buffer->offset += 5;
        return true;
    }
    /* true */
    if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "true", 4) == 0))
    {
        item->type = cJSON_True;
        item->valueint = 1;
        input_buffer->offset += 4;
        return true;
    }
    /* string */
    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '\"'))
    {
        return parse_string(item, input_buffer);
    }
    /* number */
    if (can_access_at_index(input_buffer, 0) && ((buffer_at_offset(input_buffer)[0] == '-') || ((buffer_at_offset(input_buffer)[0] >= '0') && (buffer_at_offset(input_buffer)[0] <= '9'))))
    {
        return parse_number(item, input_buffer);
    }
    /* array */
    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '['))
    {
        return parse_array(item, input_buffer);
    }
    /* object */
    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '{'))
    {
        return parse_object(item, input_buffer);
    }

    return false;
}

print()

static unsigned char* print ( const cJSON *const  item, cJSON_bool  format, const internal_hooks *const  hooks  )

static

Definition at line 1094 of file cJSON.c.

References internal_hooks::allocate(), buffer, printbuffer::buffer, cjson_min, CJSON_PUBLIC(), fail, fmt, format, printbuffer::format, global_hooks, printbuffer::hooks, printbuffer::length, memset(), printbuffer::noalloc, printbuffer::offset, prebuffer, print_value(), internal_hooks::reallocate(), and update_offset().

{
    static const size_t default_buffer_size = 256;
    printbuffer buffer[1];
    unsigned char *printed = NULL;

    memset(buffer, 0, sizeof(buffer));

    /* create buffer */
    buffer->buffer = (unsigned char*) hooks->allocate(default_buffer_size);
    buffer->length = default_buffer_size;
    buffer->format = format;
    buffer->hooks = *hooks;

    if (buffer->buffer == NULL) {
        goto fail;
    }

    /* print the value */
    if (!print_value(item, buffer)) {
        goto fail;
    }

    update_offset(buffer);

    /* check if reallocate is available */
    if (hooks->reallocate != NULL) {
        printed = (unsigned char*) hooks->reallocate(buffer->buffer, buffer->offset + 1);
        if (printed == NULL) {
            goto fail;
        }

        buffer->buffer = NULL;
    } else { /* otherwise copy the JSON over to a new buffer */
        printed = (unsigned char*) hooks->allocate(buffer->offset + 1);
        if (printed == NULL) {
            goto fail;
        }

        memcpy(printed, buffer->buffer, cjson_min(buffer->length, buffer->offset + 1));
        printed[buffer->offset] = '\0'; /* just to be sure */

        /* free the buffer */
        hooks->deallocate(buffer->buffer);
    }

    return printed;

fail:
    if (buffer->buffer != NULL) {
        hooks->deallocate(buffer->buffer);
    }

    return NULL;
}

print_array()

static cJSON_bool print_array ( const cJSON *const  item, printbuffer *const  output_buffer  )

static

Definition at line 1434 of file cJSON.c.

References cJSON::child, printbuffer::depth, ensure(), printbuffer::format, length, cJSON::next, printbuffer::offset, print_value(), and update_offset().

Referenced by print_string(), and print_value().

{
    unsigned char *output_pointer = NULL;
    size_t length = 0;
    cJSON *current_element = item->child;

    if (output_buffer == NULL)
    {
        return false;
    }

    /* Compose the output array. */
    /* opening square bracket */
    output_pointer = ensure(output_buffer, 1);
    if (output_pointer == NULL)
    {
        return false;
    }

    *output_pointer = '[';
    output_buffer->offset++;
    output_buffer->depth++;

    while (current_element != NULL)
    {
        if (!print_value(current_element, output_buffer))
        {
            return false;
        }
        update_offset(output_buffer);
        if (current_element->next)
        {
            length = (size_t) (output_buffer->format ? 2 : 1);
            output_pointer = ensure(output_buffer, length + 1);
            if (output_pointer == NULL)
            {
                return false;
            }
            *output_pointer++ = ',';
            if(output_buffer->format)
            {
                *output_pointer++ = ' ';
            }
            *output_pointer = '\0';
            output_buffer->offset += length;
        }
        current_element = current_element->next;
    }

    output_pointer = ensure(output_buffer, 2);
    if (output_pointer == NULL)
    {
        return false;
    }
    *output_pointer++ = ']';
    *output_pointer = '\0';
    output_buffer->depth--;

    return true;
}

print_number()

static cJSON_bool print_number ( const cJSON *const  item, printbuffer *const  output_buffer  )

static

Definition at line 481 of file cJSON.c.

References ensure(), get_decimal_point(), length, printbuffer::offset, and cJSON::valuedouble.

Referenced by print_value().

{
    unsigned char *output_pointer = NULL;
    double d = item->valuedouble;
    int length = 0;
    size_t i = 0;
    unsigned char number_buffer[26]; /* temporary buffer to print the number into */
    unsigned char decimal_point = get_decimal_point();
    double test;

    if (output_buffer == NULL)
    {
        return false;
    }

    /* This checks for NaN and Infinity */
    if ((d * 0) != 0)
    {
        length = sprintf((char*)number_buffer, "null");
    }
    else
    {
        /* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */
        length = sprintf((char*)number_buffer, "%1.15g", d);

        /* Check whether the original double can be recovered */
        if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || ((double)test != d))
        {
            /* If not, print with 17 decimal places of precision */
            length = sprintf((char*)number_buffer, "%1.17g", d);
        }
    }

    /* sprintf failed or buffer overrun occurred */
    if ((length < 0) || (length > (int)(sizeof(number_buffer) - 1)))
    {
        return false;
    }

    /* reserve appropriate space in the output */
    output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
    if (output_pointer == NULL)
    {
        return false;
    }

    /* copy the printed number to the output and replace locale
     * dependent decimal point with '.' */
    for (i = 0; i < ((size_t)length); i++)
    {
        if (number_buffer[i] == decimal_point)
        {
            output_pointer[i] = '.';
            continue;
        }

        output_pointer[i] = number_buffer[i];
    }
    output_pointer[i] = '\0';

    output_buffer->offset += (size_t)length;

    return true;
}

print_object()

static cJSON_bool print_object ( const cJSON *const  item, printbuffer *const  output_buffer  )

static

Definition at line 1605 of file cJSON.c.

References cJSON::child, CJSON_PUBLIC(), printbuffer::depth, ensure(), printbuffer::format, length, cJSON::next, printbuffer::offset, print_string_ptr(), print_value(), cJSON::string, and update_offset().

Referenced by print_string(), and print_value().

{
    unsigned char *output_pointer = NULL;
    size_t length = 0;
    cJSON *current_item = item->child;

    if (output_buffer == NULL)
    {
        return false;
    }

    /* Compose the output: */
    length = (size_t) (output_buffer->format ? 2 : 1); /* fmt: {\n */
    output_pointer = ensure(output_buffer, length + 1);
    if (output_pointer == NULL)
    {
        return false;
    }

    *output_pointer++ = '{';
    output_buffer->depth++;
    if (output_buffer->format)
    {
        *output_pointer++ = '\n';
    }
    output_buffer->offset += length;

    while (current_item)
    {
        if (output_buffer->format)
        {
            size_t i;
            output_pointer = ensure(output_buffer, output_buffer->depth);
            if (output_pointer == NULL)
            {
                return false;
            }
            for (i = 0; i < output_buffer->depth; i++)
            {
                *output_pointer++ = '\t';
            }
            output_buffer->offset += output_buffer->depth;
        }

        /* print key */
        if (!print_string_ptr((unsigned char*)current_item->string, output_buffer))
        {
            return false;
        }
        update_offset(output_buffer);

        length = (size_t) (output_buffer->format ? 2 : 1);
        output_pointer = ensure(output_buffer, length);
        if (output_pointer == NULL)
        {
            return false;
        }
        *output_pointer++ = ':';
        if (output_buffer->format)
        {
            *output_pointer++ = '\t';
        }
        output_buffer->offset += length;

        /* print value */
        if (!print_value(current_item, output_buffer))
        {
            return false;
        }
        update_offset(output_buffer);

        /* print comma if not last */
        length = ((size_t)(output_buffer->format ? 1 : 0) + (size_t)(current_item->next ? 1 : 0));
        output_pointer = ensure(output_buffer, length + 1);
        if (output_pointer == NULL)
        {
            return false;
        }
        if (current_item->next)
        {
            *output_pointer++ = ',';
        }

        if (output_buffer->format)
        {
            *output_pointer++ = '\n';
        }
        *output_pointer = '\0';
        output_buffer->offset += length;

        current_item = current_item->next;
    }

    output_pointer = ensure(output_buffer, output_buffer->format ? (output_buffer->depth + 1) : 2);
    if (output_pointer == NULL)
    {
        return false;
    }
    if (output_buffer->format)
    {
        size_t i;
        for (i = 0; i < (output_buffer->depth - 1); i++)
        {
            *output_pointer++ = '\t';
        }
    }
    *output_pointer++ = '}';
    *output_pointer = '\0';
    output_buffer->depth--;

    return true;
}

print_string()

static cJSON_bool print_string ( const cJSON *const  item, printbuffer *const  p  )

static

Definition at line 956 of file cJSON.c.

References parse_array(), parse_object(), parse_value(), print_array(), print_object(), print_string_ptr(), print_value(), and cJSON::valuestring.

Referenced by print_value().

{
    return print_string_ptr((unsigned char*)item->valuestring, p);
}

print_string_ptr()

static cJSON_bool print_string_ptr ( const unsigned char *const  input, printbuffer *const  output_buffer  )

static

Definition at line 834 of file cJSON.c.

References ensure(), and internal_hooks::void().

Referenced by print_object(), and print_string().

{
    const unsigned char *input_pointer = NULL;
    unsigned char *output = NULL;
    unsigned char *output_pointer = NULL;
    size_t output_length = 0;
    /* numbers of additional characters needed for escaping */
    size_t escape_characters = 0;

    if (output_buffer == NULL)
    {
        return false;
    }

    /* empty string */
    if (input == NULL)
    {
        output = ensure(output_buffer, sizeof("\"\""));
        if (output == NULL)
        {
            return false;
        }
        strcpy((char*)output, "\"\"");

        return true;
    }

    /* set "flag" to 1 if something needs to be escaped */
    for (input_pointer = input; *input_pointer; input_pointer++)
    {
        switch (*input_pointer)
        {
            case '\"':
            case '\\':
            case '\b':
            case '\f':
            case '\n':
            case '\r':
            case '\t':
                /* one character escape sequence */
                escape_characters++;
                break;
            default:
                if (*input_pointer < 32)
                {
                    /* UTF-16 escape sequence uXXXX */
                    escape_characters += 5;
                }
                break;
        }
    }
    output_length = (size_t)(input_pointer - input) + escape_characters;

    output = ensure(output_buffer, output_length + sizeof("\"\""));
    if (output == NULL)
    {
        return false;
    }

    /* no characters have to be escaped */
    if (escape_characters == 0)
    {
        output[0] = '\"';
        memcpy(output + 1, input, output_length);
        output[output_length + 1] = '\"';
        output[output_length + 2] = '\0';

        return true;
    }

    output[0] = '\"';
    output_pointer = output + 1;
    /* copy the string */
    for (input_pointer = input; *input_pointer != '\0'; (void)input_pointer++, output_pointer++)
    {
        if ((*input_pointer > 31) && (*input_pointer != '\"') && (*input_pointer != '\\'))
        {
            /* normal character, copy */
            *output_pointer = *input_pointer;
        }
        else
        {
            /* character needs to be escaped */
            *output_pointer++ = '\\';
            switch (*input_pointer)
            {
                case '\\':
                    *output_pointer = '\\';
                    break;
                case '\"':
                    *output_pointer = '\"';
                    break;
                case '\b':
                    *output_pointer = 'b';
                    break;
                case '\f':
                    *output_pointer = 'f';
                    break;
                case '\n':
                    *output_pointer = 'n';
                    break;
                case '\r':
                    *output_pointer = 'r';
                    break;
                case '\t':
                    *output_pointer = 't';
                    break;
                default:
                    /* escape and print as unicode codepoint */
                    sprintf((char*)output_pointer, "u%04x", *input_pointer);
                    output_pointer += 4;
                    break;
            }
        }
    }
    output[output_length + 1] = '\"';
    output[output_length + 2] = '\0';

    return true;
}

print_value()

static cJSON_bool print_value ( const cJSON *const  item, printbuffer *const  output_buffer  )

static

Definition at line 1266 of file cJSON.c.

References cJSON_Array, cJSON_False, cJSON_NULL, cJSON_Number, cJSON_Object, cJSON_Raw, cJSON_String, cJSON_True, ensure(), print_array(), print_number(), print_object(), print_string(), cJSON::type, and cJSON::valuestring.

Referenced by CJSON_PUBLIC(), print(), print_array(), print_object(), and print_string().

{
    unsigned char *output = NULL;

    if ((item == NULL) || (output_buffer == NULL))
    {
        return false;
    }

    switch ((item->type) & 0xFF)
    {
        case cJSON_NULL:
            output = ensure(output_buffer, 5);
            if (output == NULL)
            {
                return false;
            }
            strcpy((char*)output, "null");
            return true;

        case cJSON_False:
            output = ensure(output_buffer, 6);
            if (output == NULL)
            {
                return false;
            }
            strcpy((char*)output, "false");
            return true;

        case cJSON_True:
            output = ensure(output_buffer, 5);
            if (output == NULL)
            {
                return false;
            }
            strcpy((char*)output, "true");
            return true;

        case cJSON_Number:
            return print_number(item, output_buffer);

        case cJSON_Raw:
        {
            size_t raw_length = 0;
            if (item->valuestring == NULL)
            {
                return false;
            }

            raw_length = strlen(item->valuestring) + sizeof("");
            output = ensure(output_buffer, raw_length);
            if (output == NULL)
            {
                return false;
            }
            memcpy(output, item->valuestring, raw_length);
            return true;
        }

        case cJSON_String:
            return print_string(item, output_buffer);

        case cJSON_Array:
            return print_array(item, output_buffer);

        case cJSON_Object:
            return print_object(item, output_buffer);

        default:
            return false;
    }
}

replace_item_in_object()

static cJSON_bool replace_item_in_object ( cJSON *  object, const char *  string, cJSON *  replacement, cJSON_bool  case_sensitive  )

static

Definition at line 2226 of file cJSON.c.

References b, cast_away_const(), cJSON::child, cJSON_Array, cJSON_False, cJSON_IsReference, cJSON_New_Item(), cJSON_NULL, cJSON_Number, cJSON_Object, CJSON_PUBLIC(), cJSON_Raw, cJSON_strdup(), cJSON_String, cJSON_StringIsConst, cJSON_True, count, fail, get_object_item(), global_hooks, item, newitem, cJSON::next, cJSON::prev, raw, recurse, cJSON::string, string, suffix_object(), cJSON::type, cJSON::valuedouble, cJSON::valueint, and cJSON::valuestring.

{
    if ((replacement == NULL) || (string == NULL))
    {
        return false;
    }

    /* replace the name in the replacement */
    if (!(replacement->type & cJSON_StringIsConst) && (replacement->string != NULL))
    {
        cJSON_free(replacement->string);
    }
    replacement->string = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
    replacement->type &= ~cJSON_StringIsConst;

    cJSON_ReplaceItemViaPointer(object, get_object_item(object, string, case_sensitive), replacement);

    return true;
}

skip_multiline_comment()

static void skip_multiline_comment ( char **  input )

static

Definition at line 2653 of file cJSON.c.

References static_strlen.

Referenced by minify_string().

{
    *input += static_strlen("/*");

    for (; (*input)[0] != '\0'; ++(*input))
    {
        if (((*input)[0] == '*') && ((*input)[1] == '/'))
        {
            *input += static_strlen("*/");
            return;
        }
    }
}

skip_oneline_comment()

static void skip_oneline_comment ( char **  input )

static

Definition at line 2640 of file cJSON.c.

References static_strlen.

Referenced by minify_string().

{
    *input += static_strlen("//");

    for (; (*input)[0] != '\0'; ++(*input))
    {
        if ((*input)[0] == '\n') {
            *input += static_strlen("\n");
            return;
        }
    }
}

skip_utf8_bom()

static parse_buffer* skip_utf8_bom ( parse_buffer *const  buffer )

static

Definition at line 991 of file cJSON.c.

References buffer, buffer_at_offset, can_access_at_index, parse_buffer::content, and parse_buffer::offset.

Referenced by CJSON_PUBLIC().

{
    if ((buffer == NULL) || (buffer->content == NULL) || (buffer->offset != 0))
    {
        return NULL;
    }

    if (can_access_at_index(buffer, 4) && (strncmp((const char*)buffer_at_offset(buffer), "\xEF\xBB\xBF", 3) == 0))
    {
        buffer->offset += 3;
    }

    return buffer;
}

suffix_object()

static void suffix_object ( cJSON *  prev, cJSON *  item  )

static

Definition at line 1819 of file cJSON.c.

References item, cJSON::next, and cJSON::prev.

Referenced by add_item_to_array(), and replace_item_in_object().

{
    prev->next = item;
    item->prev = prev;
}

update_offset()

static void update_offset ( printbuffer *const  buffer )

static

Definition at line 468 of file cJSON.c.

References printbuffer::buffer, and printbuffer::offset.

Referenced by print(), print_array(), and print_object().

{
    const unsigned char *buffer_pointer = NULL;
    if ((buffer == NULL) || (buffer->buffer == NULL))
    {
        return;
    }
    buffer_pointer = buffer->buffer + buffer->offset;

    buffer->offset += strlen((const char*)buffer_pointer);
}

utf16_literal_to_utf8()

static unsigned char utf16_literal_to_utf8 ( const unsigned char *const  input_pointer, const unsigned char *const  input_end, unsigned char **  output_pointer  )

static

Definition at line 584 of file cJSON.c.

References fail, and parse_hex4().

Referenced by parse_string().

{
    long unsigned int codepoint = 0;
    unsigned int first_code = 0;
    const unsigned char *first_sequence = input_pointer;
    unsigned char utf8_length = 0;
    unsigned char utf8_position = 0;
    unsigned char sequence_length = 0;
    unsigned char first_byte_mark = 0;

    if ((input_end - first_sequence) < 6)
    {
        /* input ends unexpectedly */
        goto fail;
    }

    /* get the first utf16 sequence */
    first_code = parse_hex4(first_sequence + 2);

    /* check that the code is valid */
    if (((first_code >= 0xDC00) && (first_code <= 0xDFFF)))
    {
        goto fail;
    }

    /* UTF16 surrogate pair */
    if ((first_code >= 0xD800) && (first_code <= 0xDBFF))
    {
        const unsigned char *second_sequence = first_sequence + 6;
        unsigned int second_code = 0;
        sequence_length = 12; /* \uXXXX\uXXXX */

        if ((input_end - second_sequence) < 6)
        {
            /* input ends unexpectedly */
            goto fail;
        }

        if ((second_sequence[0] != '\\') || (second_sequence[1] != 'u'))
        {
            /* missing second half of the surrogate pair */
            goto fail;
        }

        /* get the second utf16 sequence */
        second_code = parse_hex4(second_sequence + 2);
        /* check that the code is valid */
        if ((second_code < 0xDC00) || (second_code > 0xDFFF))
        {
            /* invalid second half of the surrogate pair */
            goto fail;
        }


        /* calculate the unicode codepoint from the surrogate pair */
        codepoint = 0x10000 + (((first_code & 0x3FF) << 10) | (second_code & 0x3FF));
    }
    else
    {
        sequence_length = 6; /* \uXXXX */
        codepoint = first_code;
    }

    /* encode as UTF-8
     * takes at maximum 4 bytes to encode:
     * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
    if (codepoint < 0x80)
    {
        /* normal ascii, encoding 0xxxxxxx */
        utf8_length = 1;
    }
    else if (codepoint < 0x800)
    {
        /* two bytes, encoding 110xxxxx 10xxxxxx */
        utf8_length = 2;
        first_byte_mark = 0xC0; /* 11000000 */
    }
    else if (codepoint < 0x10000)
    {
        /* three bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx */
        utf8_length = 3;
        first_byte_mark = 0xE0; /* 11100000 */
    }
    else if (codepoint <= 0x10FFFF)
    {
        /* four bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx 10xxxxxx */
        utf8_length = 4;
        first_byte_mark = 0xF0; /* 11110000 */
    }
    else
    {
        /* invalid unicode codepoint */
        goto fail;
    }

    /* encode as utf8 */
    for (utf8_position = (unsigned char)(utf8_length - 1); utf8_position > 0; utf8_position--)
    {
        /* 10xxxxxx */
        (*output_pointer)[utf8_position] = (unsigned char)((codepoint | 0x80) & 0xBF);
        codepoint >>= 6;
    }
    /* encode first byte */
    if (utf8_length > 1)
    {
        (*output_pointer)[0] = (unsigned char)((codepoint | first_byte_mark) & 0xFF);
    }
    else
    {
        (*output_pointer)[0] = (unsigned char)(codepoint & 0x7F);
    }

    *output_pointer += utf8_length;

    return sequence_length;

fail:
    return 0;
}

Variable Documentation

global_error

error global_error = { NULL, 0 }

static

Definition at line 72 of file cJSON.c.

global_hooks

internal_hooks global_hooks = { internal_malloc, internal_free, internal_realloc }

static

Definition at line 154 of file cJSON.c.

Referenced by CJSON_PUBLIC(), print(), and replace_item_in_object().