Function compare_pointers

cJSON_Utils.c:120–154

Compare the next path element of two JSON pointers, two NULL pointers are considered unequal: */

/* Compare the next path element of two JSON pointers, two NULL pointers are considered unequal: */
static cJSON_bool compare_pointers(const unsigned char *name, const unsigned char *pointer, const cJSON_bool case_sensitive)
{
    if ((name == NULL) || (pointer == NULL))
    {
        return false;
    }

    for (; (*name != '\0') && (*pointer != '\0') && (*pointer != '/'); (void)name++, pointer++) /* compare until next '/' */
    {
        if (*pointer == '~')
        {
            /* check for escaped '~' (~0) and '/' (~1) */
            if (((pointer[1] != '0') || (*name != '~')) && ((pointer[1] != '1') || (*name != '/')))
            {
                /* invalid escape sequence or wrong character in *name */
                return false;
            }
            else
            {
                pointer++;
            }
        }
        else if ((!case_sensitive && (tolower(*name) != tolower(*pointer))) || (case_sensitive && (*name != *pointer)))
        {
            return false;
        }
    }
    if (((*pointer != 0) && (*pointer != '/')) != (*name != 0))
    {
        /* one string has ended, the other not */
        return false;;
    }

    return true;
}

/* calculate the length of a string if encoded as JSON pointer with ~0 and ~1 escape sequences */
static size_t pointer_encoded_length(const unsigned char *string)