自学教程：C++ yajl_parse函数代码示例

void json_parse_to_ei(ErlDrvData session, const unsigned char* s, int len, int opts) {  int parseValue = opts & EEP0018_PARSE_VALUE;    unsigned char* yajl_msg = 0;  unsigned char* msg = 0;  ErlDrvPort port = (ErlDrvPort) session;  /*   * initialize yajl parser   */  State state;  init(&state, opts);    yajl_parser_config conf = { YAJL_ALLOW_COMMENTS }; // , YAJL_CHECK_UTF8 };  yajl_handle handle = yajl_alloc(&callbacks, &conf, &state);  /* start parser */  yajl_status stat;  if(parseValue) stat = yajl_parse(handle, (const unsigned char*) "[ ", 2);  stat = yajl_parse(handle, s, len);  if(parseValue) stat = yajl_parse(handle, (const unsigned char*) " ]", 2);  /*   * sometimes the parser is still stuck inside a JSON token. This finishs   * the token no matter what.   */  if(stat == yajl_status_insufficient_data)    stat = yajl_parse(handle, (const unsigned char*) " ", 1);  /*    * get an error message on errors   */  switch(stat) {    case yajl_status_ok: break;    case yajl_status_insufficient_data:       msg = (unsigned char*)"Insufficient data";       break;    default:      msg = yajl_msg = yajl_get_error(handle, 0, s, len);      break;  }  /*    * if result is not ok: we write {error, "reason"} instead. This is    * something that will never be encoded from any JSON data.   */  if(msg) {    ei_x_free(&state.ei_buf);    ei_x_new_with_version(&state.ei_buf);    ei_x_encode_tuple_header(&state.ei_buf, 2);    ei_x_encode_atom_len(&state.ei_buf, "error", 5);    ei_x_encode_string_len(&state.ei_buf, (const char*) msg, strlen((const char*) msg));    if(yajl_msg) yajl_free_error(yajl_msg);  }   send_data(port, EEP0018_EI, state.ei_buf.buff, state.ei_buf.index);  deinit(&state);}

struct aws_dynamo_create_table_response*aws_dynamo_parse_create_table_response(const char *response, int response_len){	yajl_handle hand;	yajl_status stat;	struct ctx _ctx = { 0 };	_ctx.r = calloc(sizeof(*(_ctx.r)), 1);	if (_ctx.r == NULL) {		Warnx("aws_dynamo_parse_create_table_response: response alloc failed.");		return NULL;	}#if YAJL_MAJOR == 2	hand = yajl_alloc(&handle_callbacks, NULL, &_ctx);	yajl_parse(hand, response, response_len);	stat = yajl_complete_parse(hand);#else	hand = yajl_alloc(&handle_callbacks, NULL, NULL, &_ctx);	yajl_parse(hand, response, response_len);	stat = yajl_parse_complete(hand);#endif	if (stat != yajl_status_ok) {		unsigned char *str = yajl_get_error(hand, 1, response, response_len);		Warnx("aws_dynamo_parse_create_table_response: json parse failed, '%s'", (const char *)str);		yajl_free_error(hand, str);		yajl_free(hand);		aws_dynamo_free_create_table_response(_ctx.r);		return NULL;	}	yajl_free(hand);	return _ctx.r;}

static SLVALsl_json_parse(sl_vm_t* vm, SLVAL self, size_t argc, SLVAL* argv){    sl_string_t* str = sl_get_string(vm, argv[0]);    json_parse_t json;    yajl_alloc_funcs alloc_funcs = {        sl_yajl_alloc,        sl_yajl_realloc,        sl_yajl_free,        NULL    };    alloc_funcs.ctx = vm->arena;    json.vm = vm;    json.max_depth = 32;    json.stack_len = 0;    json.stack_cap = 32;    json.stack = sl_alloc(vm->arena, sizeof(SLVAL) * json.stack_cap);    json.type_stack = sl_alloc(vm->arena, json.stack_cap);    if(argc > 1) {        json.max_depth = sl_get_int(sl_expect(vm, argv[1], vm->lib.Int));    }        json.yajl = yajl_alloc(&callbacks, &alloc_funcs, &json);    sl_json_parse_check_error(vm, str, &json, yajl_parse(json.yajl, str->buff, str->buff_len));    sl_json_parse_check_error(vm, str, &json, yajl_complete_parse(json.yajl));    yajl_free(json.yajl);    /* must've been OK! */    return json.stack[0];            (void)self;}

/* * Parse the JSON protocol header to determine protocol version and features. * In case the buffer does not contain a valid header (invalid JSON, or no * version field found), the 'correct' field of the returned header is set to * false. The amount of bytes consumed by parsing the header is returned in * *consumed (if non-NULL). * */void parse_json_header(i3bar_child *child, const unsigned char *buffer, int length, unsigned int *consumed) {    static yajl_callbacks version_callbacks = {        .yajl_boolean = header_boolean,        .yajl_integer = header_integer,        .yajl_map_key = &header_map_key,    };    child_init(child);    current_key = NO_KEY;    yajl_handle handle = yajl_alloc(&version_callbacks, NULL, child);    /* Allow trailing garbage. yajl 1 always behaves that way anyways, but for     * yajl 2, we need to be explicit. */    yajl_config(handle, yajl_allow_trailing_garbage, 1);    yajl_status state = yajl_parse(handle, buffer, length);    if (state != yajl_status_ok) {        child_init(child);        if (consumed != NULL)            *consumed = 0;    } else {        if (consumed != NULL)            *consumed = yajl_get_bytes_consumed(handle);    }    yajl_free(handle);}

/** * Read JSON data and parse it using the given YAJL parser. * @param url URL of the JSON data. * @param hand YAJL parser handle. * @return -1 on error, 0 on success. */static intsoundcloud_parse_json(const char *url, yajl_handle hand, GMutex* mutex, GCond* cond){	struct input_stream *input_stream;	GError *error = NULL;	char buffer[4096];	unsigned char *ubuffer = (unsigned char *)buffer;	size_t nbytes;	input_stream = input_stream_open(url, mutex, cond, &error);	if (input_stream == NULL) {		if (error != NULL) {			g_warning("%s", error->message);			g_error_free(error);		}		return -1;	}	g_mutex_lock(mutex);	input_stream_wait_ready(input_stream);	yajl_status stat;	int done = 0;	while (!done) {		nbytes = input_stream_read(input_stream, buffer, sizeof(buffer), &error);		if (nbytes == 0) {			if (error != NULL) {				g_warning("%s", error->message);				g_error_free(error);			}			if (input_stream_eof(input_stream)) {				done = true;			} else {				g_mutex_unlock(mutex);				input_stream_close(input_stream);				return -1;			}		}		if (done)			stat = yajl_parse_complete(hand);		else			stat = yajl_parse(hand, ubuffer, nbytes);		if (stat != yajl_status_ok &&			stat != yajl_status_insufficient_data)		{			unsigned char *str = yajl_get_error(hand, 1, ubuffer, nbytes);			g_warning("%s", str);			yajl_free_error(hand, str);			break;		}	}	g_mutex_unlock(mutex);	input_stream_close(input_stream);	return 0;}

static const char *parse_json(state_t *st, unsigned char *buf, size_t len){  yajl_parser_config cfg = {    1, /* allow comments */    0  /* don't check UTF-8 */  };  yajl_handle yh;  yajl_status ys;  const char *err=NULL;  alloc_funcs.ctx = st->env; /* will be passed to alloc funcs */  yh = yajl_alloc(&callbacks, &cfg, &alloc_funcs, st);  ys = yajl_parse(yh, buf, len);  if (ys == yajl_status_insufficient_data) {    ys = yajl_parse_complete(yh);  }  if (ys == yajl_status_insufficient_data) {    err = "unexpected end of document";  } else if (ys != yajl_status_ok) {    unsigned char *msg = yajl_get_error(yh, 0, NULL, 0);    strncpy(st->errmsg, (char *)msg, sizeof(st->errmsg)-1);    yajl_free_error(yh, msg);    st->errmsg[sizeof(st->errmsg)] = 0;    err = st->errmsg;  }  yajl_free(yh);  return err;}

/* * Start parsing the received JSON string * */void parse_outputs_json(char *json) {    struct outputs_json_params params;    params.outputs_walk = NULL;    params.cur_key = NULL;    params.json = json;    params.in_rect = false;    yajl_handle handle;    yajl_status state;    handle = yajl_alloc(&outputs_callbacks, NULL, (void *)&params);    state = yajl_parse(handle, (const unsigned char *)json, strlen(json));    /* FIXME: Proper errorhandling for JSON-parsing */    switch (state) {        case yajl_status_ok:            break;        case yajl_status_client_canceled:        case yajl_status_error:            ELOG("Could not parse outputs reply!/n");            exit(EXIT_FAILURE);            break;    }    yajl_free(handle);}

VOID ReadData(REQUEST_CONTEXT* context){	yajl_handle hand;	yajl_parser_config cfg = { 1, 1 };	json_ctx ctx = { 0, 0 };	hand = JSONCodec::AllocateHandle(&cfg, &ctx);	unsigned char temp[BUFFER_SIZE];	DWORD read = 0;	BOOL res = FALSE;	while(true) {		res = WinHttpReadData(context->hRequest, temp, BUFFER_SIZE, &read);		if(!res) {			Log::Error("Error reading response data");			break;		}		if(read == 0)			break;		temp[read] = 0;		yajl_status status = yajl_parse(hand, temp, read);		if(status == yajl_status_error) {			Log::Error("Error parsing response data");			res = FALSE;			break;		}	}	yajl_parse_complete(hand);    yajl_free(hand);	JSONCodec::Decode(ctx.current, context->px);	JSONCodec::FreeJsonValue(ctx.current);}

static int js_parser_parse(lua_State *L) {    yajl_handle* handle = (yajl_handle*)        lua_touserdata(L, lua_upvalueindex(1));    if ( lua_isnil(L, 1) ) {        js_parser_assert(L,                         yajl_complete_parse(*handle),                         handle,                         NULL,                         0,                         __FILE__,                         __LINE__);    } else {        size_t len;        const unsigned char* buff = (const unsigned char*) luaL_checklstring(L, 1, &len);        if ( NULL == buff ) return 0;        js_parser_assert(L,                         yajl_parse(*handle, buff, len),                         handle,                         buff,                         len,                         __FILE__,                         __LINE__);    }    return 0;}

/* if this method throw an exception then the object is invalid */bool JsonShredder::Shred(uint64_t docseq,                         const std::string& json,                         std::string* idout,                         std::string* errout) {    YajlHandle hand(&ctx_);    yajl_status stat;    bool success = true;    ctx_.docseq = docseq;    stat = yajl_parse(hand, (unsigned char*)json.c_str(), json.length());    if (stat == yajl_status_ok)        stat = yajl_complete_parse(hand);    if (stat == yajl_status_client_canceled) {        if (ctx_.exception_ptr) {            // some sorta exception occurred. rethrow.            std::rethrow_exception(ctx_.exception_ptr);        } else {            // error message must be in tempbuff            *errout = ctx_.tempbuff;            success = false;        }    } else if (stat != yajl_status_ok) {        hand.GetError(json, errout);        success = false;    }    if (ctx_.docid.length() == 0) {        *errout = "missing _id field";        success = false;    }    *idout = ctx_.docid;    return success;}

static size_t cj_curl_callback (void *buf, /* {{{ */    size_t size, size_t nmemb, void *user_data){  cj_t *db;  size_t len;  yajl_status status;  len = size * nmemb;  if (len <= 0)    return (len);  db = user_data;  if (db == NULL)    return (0);  status = yajl_parse(db->yajl, (unsigned char *)buf, len);  if (status == yajl_status_ok)    return (len);#if !HAVE_YAJL_V2  else if (status == yajl_status_insufficient_data)    return (len);#endif  unsigned char *msg = yajl_get_error(db->yajl, /* verbose = */ 1,        /* jsonText = */ (unsigned char *) buf, (unsigned int) len);  ERROR ("curl_json plugin: yajl_parse failed: %s", msg);  yajl_free_error(db->yajl, msg);  return (0); /* abort write callback */} /* }}} size_t cj_curl_callback */

inline bool __JSONParseWithString(__JSONRef json, CFStringRef string, CFErrorRef *error) {  bool success = 1;  json->yajlParser = yajl_alloc(&json->yajlParserCallbacks, &json->yajlAllocFuncs, (void *)json);  if (json->yajlParser) {//  yajl_config(json->yajlParser, yajl_allow_comments, kJSONReadOptionAllowComments | options ? 1 : 0);//  yajl_config(json->yajlParser, yajl_dont_validate_strings, kJSONReadOptionCheckUTF8 | options ? 1 : 0);      CFDataRef data = CFStringCreateExternalRepresentation(json->allocator, string, kCFStringEncodingUTF8, 0);    if (data) {      if ((json->yajlParserStatus = yajl_parse(json->yajlParser, CFDataGetBytePtr(data), CFDataGetLength(data))) != yajl_status_ok) {        if (error) {          success = 0;                    unsigned char * str = yajl_get_error(json->yajlParser, 1, CFDataGetBytePtr(data), CFDataGetLength(data));          fprintf(stderr, "%s", (const char *) str);          yajl_free_error(json->yajlParser, str);                    *error = CFErrorCreateWithUserInfoKeysAndValues(json->allocator, CFSTR("com.github.mirek.CoreJSON"), (CFIndex)json->yajlParserStatus, (const void *) { kCFErrorDescriptionKey }, (const void *) { CFSTR("Test") }, 1);        }        // TODO: Error stuff        //printf("ERROR: %s/n", yajl_get_error(json->yajlParser, 1, __JSONUTF8StringGetBuffer(utf8), __JSONUTF8StringGetMaximumSize(utf8)));      }          json->yajlParserStatus = yajl_complete_parse(json->yajlParser);      CFRelease(data);    } else {

static void_j4status_i3bar_ouput_action(J4statusPluginContext *context, gchar *line){    gsize length = strlen(line);    yajl_status json_state;    json_state = yajl_parse(context->json_handle, (const unsigned char *) line, length);    if ( json_state == yajl_status_ok )        return;    g_free(context->parse_context.name);    g_free(context->parse_context.instance);    if ( json_state == yajl_status_error )    {        unsigned char *str_error;        str_error = yajl_get_error(context->json_handle, 0, (const unsigned char *) line, length);        g_warning("Couldn't parse section from i3bar: %s", str_error);        yajl_free_error(context->json_handle, str_error);    }    else if ( json_state == yajl_status_client_canceled )    {        g_warning("i3bar JSON protocol error: %s", context->parse_context.error);        g_free(context->parse_context.error);    }}

/* * Start parsing the received bar configuration json-string * */void parse_config_json(char *json) {    yajl_handle handle;    yajl_status state;#if YAJL_MAJOR < 2    yajl_parser_config parse_conf = { 0, 0 };    handle = yajl_alloc(&outputs_callbacks, &parse_conf, NULL, NULL);#else    handle = yajl_alloc(&outputs_callbacks, NULL, NULL);#endif    state = yajl_parse(handle, (const unsigned char*) json, strlen(json));    /* FIXME: Proper errorhandling for JSON-parsing */    switch (state) {        case yajl_status_ok:            break;        case yajl_status_client_canceled:#if YAJL_MAJOR < 2        case yajl_status_insufficient_data:#endif        case yajl_status_error:            ELOG("Could not parse config-reply!/n");            exit(EXIT_FAILURE);            break;    }    yajl_free(handle);}

std::vector<char> LKStreamTranslator::process(const std::vector<char> &chunk){	std::vector<char> retval;		// We work with C strings here, because YAJL	const char *str = chunk.data();	size_t len = chunk.size();		// Abort if the string is empty anyways	if(len == 0)		return retval;		// Skip any BOM if there is one	const unsigned char bom[] = {0xEF, 0xBB, 0xBF};	if(len >= 3 && memcmp(bom, str, 3) == 0)	{		str += 3;		len -= 3;	}		// Abort if it had nothing but a BOM	if(len == 0)		return retval;		// KanColle specific: most datablobs are prefixed with "svdata=", that's	// needed for the game to work, but we can't parse with it left in	const char *svdata = "svdata=";	if(memcmp(svdata, str, (size_t)std::min(strlen(svdata), len)) == 0)	{		str += strlen(svdata);		len -= strlen(svdata);				retval.insert(retval.end(), svdata, svdata + strlen(svdata));	}		if(len > 0)	{		if(yajl_parse(ctx.parser, (const unsigned char *)str, len) != yajl_status_ok)		{			unsigned char *error = yajl_get_error(ctx.parser, true, (const unsigned char *)str, len);			std::string error_string((const char *)error);			yajl_free_error(ctx.parser, error);						throw std::runtime_error("JSON Parsing Error: " + error_string);		}				const unsigned char *buf;		size_t buf_len;		yajl_gen_get_buf(ctx.gen, &buf, &buf_len);				if(buf_len > 0)		{			retval.insert(retval.end(), buf, buf + buf_len);			yajl_gen_clear(ctx.gen);		}	}		return retval;}

static yajl_status jp_parse(JsonParserCtx *ctx, const unsigned char *s, unsigned len){	if (!ctx->yajl_handle) {		ctx->yajl_handle = yajl_alloc(&yp_yajl_callbacks, NULL, static_cast<void*>(ctx));	}	yajl_status status = yajl_parse(ctx->yajl_handle, s, len);	return status;}

struct aws_dynamo_put_item_response * aws_dynamo_parse_put_item_response(const char *response, int response_len, struct aws_dynamo_attribute *attributes, int num_attributes){	yajl_handle hand;	yajl_status stat;	struct put_item_ctx _ctx = { 0 };	_ctx.r = calloc(sizeof(*(_ctx.r)), 1);	if (_ctx.r == NULL) {		Warnx("aws_dynamo_parse_put_item_response: response alloc failed.");		return NULL;	}	if (num_attributes > 0) {		_ctx.r->attributes = malloc(sizeof(*(_ctx.r->attributes)) * num_attributes);		if (_ctx.r->attributes == NULL) {			Warnx("aws_dynamo_parse_put_item_response: attribute alloc failed.");			free(_ctx.r);			return NULL;		}		memcpy(_ctx.r->attributes, attributes, sizeof(*(attributes)) * num_attributes);		_ctx.r->num_attributes = num_attributes;	}#if YAJL_MAJOR == 2	hand = yajl_alloc(&put_item_callbacks, NULL, &_ctx);	yajl_parse(hand, response, response_len);	stat = yajl_complete_parse(hand);#else	hand = yajl_alloc(&put_item_callbacks, NULL, NULL, &_ctx);	yajl_parse(hand, response, response_len);	stat = yajl_parse_complete(hand);#endif	if (stat != yajl_status_ok) {		unsigned char *str =		    yajl_get_error(hand, 1, response, response_len);		Warnx("aws_dynamo_parse_put_item_response: json parse failed, '%s'", (const char *)str);		yajl_free_error(hand, str);		yajl_free(hand);		aws_dynamo_free_put_item_response(_ctx.r);		return NULL;	}	yajl_free(hand);	return _ctx.r;}

/* XXX add an incremental streaming parser - yajl trivially supports it */virJSONValuePtr virJSONValueFromString(const char *jsonstring){    yajl_handle hand;    virJSONParser parser = { NULL, NULL, 0 };    virJSONValuePtr ret = NULL;# ifndef WITH_YAJL2    yajl_parser_config cfg = { 1, 1 };# endif    VIR_DEBUG("string=%s", jsonstring);# ifdef WITH_YAJL2    hand = yajl_alloc(&parserCallbacks, NULL, &parser);    if (hand) {        yajl_config(hand, yajl_allow_comments, 1);        yajl_config(hand, yajl_dont_validate_strings, 0);    }# else    hand = yajl_alloc(&parserCallbacks, &cfg, NULL, &parser);# endif    if (!hand) {        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",                       _("Unable to create JSON parser"));        goto cleanup;    }    if (yajl_parse(hand,                   (const unsigned char *)jsonstring,                   strlen(jsonstring)) != yajl_status_ok) {        unsigned char *errstr = yajl_get_error(hand, 1,                                               (const unsigned char*)jsonstring,                                               strlen(jsonstring));        virReportError(VIR_ERR_INTERNAL_ERROR,                       _("cannot parse json %s: %s"),                       jsonstring, (const char*) errstr);        VIR_FREE(errstr);        virJSONValueFree(parser.head);        goto cleanup;    }    ret = parser.head;cleanup:    yajl_free(hand);    if (parser.nstate) {        size_t i;        for (i = 0; i < parser.nstate; i++) {            VIR_FREE(parser.state[i].key);        }        VIR_FREE(parser.state);    }    VIR_DEBUG("result=%p", parser.head);    return ret;}

yajl_val yajl_tree_parse_options (const char *input,                                   char *error_buffer, size_t error_buffer_size,                                   yajl_tree_option options){    static const yajl_callbacks callbacks =        {            /* null        = */ handle_null,            /* boolean     = */ handle_boolean,            /* integer     = */ NULL,            /* double      = */ NULL,            /* number      = */ handle_number,            /* string      = */ handle_string,            /* start map   = */ handle_start_map,            /* map key     = */ handle_string,            /* end map     = */ handle_end_map,            /* start array = */ handle_start_array,            /* end array   = */ handle_end_array        };    yajl_handle handle;    yajl_status status;    char * internal_err_str;	context_t ctx = { NULL, NULL, NULL, 0 };	ctx.errbuf = error_buffer;	ctx.errbuf_size = error_buffer_size;    if (error_buffer != NULL)        memset (error_buffer, 0, error_buffer_size);    handle = yajl_alloc (&callbacks, NULL, &ctx);    yajl_config(handle, yajl_allow_comments,            (options & yajl_tree_option_dont_allow_comments) ? 0 : 1);    yajl_config(handle, yajl_allow_trailing_separator,            (options & yajl_tree_option_allow_trailing_separator) ? 1 : 0);    status = yajl_parse(handle,                        (unsigned char *) input,                        strlen (input));    status = yajl_complete_parse (handle);    if (status != yajl_status_ok) {        if (error_buffer != NULL && error_buffer_size > 0) {               internal_err_str = (char *) yajl_get_error(handle, 1,                     (const unsigned char *) input,                     strlen(input));             snprintf(error_buffer, error_buffer_size, "%s", internal_err_str);             YA_FREE(&(handle->alloc), internal_err_str);        }        while (ctx.stack) {            yajl_tree_free(context_pop(&ctx));        }        yajl_free (handle);        return NULL;    }    yajl_free (handle);    return (ctx.root);}

static struct rest_json_payload *rest_get_json_upload(mtev_http_rest_closure_t *restc,                    int *mask, int *complete) {  struct rest_json_payload *rxc;  mtev_http_request *req = mtev_http_session_request(restc->http_ctx);  httptrap_closure_t *ccl = NULL;  int content_length;  char buffer[32768];  content_length = mtev_http_request_content_length(req);  rxc = restc->call_closure;  rxc->check = noit_poller_lookup(rxc->check_id);  if (!rxc->check) {    *complete = 1;    return NULL;  }  if(!strcmp(rxc->check->module, "httptrap")) ccl = rxc->check->closure;  rxc->immediate = noit_httptrap_check_asynch(ccl ? ccl->self : NULL, rxc->check);  while(!rxc->complete) {    int len;    len = mtev_http_session_req_consume(            restc->http_ctx, buffer,            MIN(content_length - rxc->len, sizeof(buffer)),            sizeof(buffer),            mask);    if(len > 0) {      yajl_status status;      _YD("inbound payload chunk (%d bytes) continuing YAJL parse/n", len);      status = yajl_parse(rxc->parser, (unsigned char *)buffer, len);      if(status != yajl_status_ok) {        unsigned char *err;        *complete = 1;        err = yajl_get_error(rxc->parser, 0, (unsigned char *)buffer, len);        rxc->error = strdup((char *)err);        yajl_free_error(rxc->parser, err);        return rxc;      }      rxc->len += len;    }    if(len < 0 && errno == EAGAIN) return NULL;    else if(len < 0) {      *complete = 1;      return NULL;    }    content_length = mtev_http_request_content_length(req);    if((mtev_http_request_payload_chunked(req) && len == 0) ||       (rxc->len == content_length)) {      rxc->complete = 1;      _YD("no more data, finishing YAJL parse/n");      yajl_complete_parse(rxc->parser);    }  }  *complete = 1;  return rxc;}

size_t parse_json(void *ptr, size_t size,  size_t  nmemb,  void  *stream) {    size_t total_size = size * nmemb;    yajl_handle y_handle = (yajl_handle)stream;    syslog(LOG_DEBUG, "about to parse");    yajl_parse(y_handle, ptr, total_size);        return total_size;}

void yajl_parse_chunk(const unsigned char * chunk, unsigned int len, yajl_handle parser) {    yajl_status stat;    stat = yajl_parse(parser, chunk, len);    if (stat != yajl_status_ok && stat != yajl_status_insufficient_data) {        unsigned char * str = yajl_get_error(parser, 1, chunk, len);        rb_raise(cParseError, "%s", (const char *) str);        yajl_free_error(parser, str);    }}

yajl_statusyajl_parse_complete(yajl_handle hand){    /* The particular case we want to handle is a trailing number.     * Further input consisting of digits could cause our interpretation     * of the number to change (buffered "1" but "2" comes in).     * A very simple approach to this is to inject whitespace to terminate     * any number in the lex buffer.     */    return yajl_parse(hand, (const unsigned char *)" ", 1);}

int parseSampleFromFile(Sample *sample, FILE *inputFile) {    yajl_handle hand;    static unsigned char fileData[READ_BUFFER_SIZE];    ParseContext g;    g.sample = sample;    yajl_status stat;    size_t rd;    /* allow comments */    yajl_parser_config cfg = { 1, 1 };    int retval = 1, done = 0;    /* ok.  open file.  let's read and parse */    hand = yajl_alloc(&callbacks, &cfg, NULL, (void *) &g);            while (!done) {        rd = fread((void *) fileData, 1, sizeof(fileData) - 1, inputFile);                if (rd == 0) {            if (!feof(inputFile)) {                fprintf(stderr, "error on file read./n");                retval = 0;                break;            }            done = 1;        }        fileData[rd] = 0;                if (done)            /* parse any remaining buffered data */            stat = yajl_parse_complete(hand);        else            /* read file data, pass to parser */            stat = yajl_parse(hand, fileData, rd);        if (stat != yajl_status_ok &&            stat != yajl_status_insufficient_data)        {            unsigned char * str = yajl_get_error(hand, 1, fileData, rd);            fprintf(stderr, "%s", (const char *) str);            yajl_free_error(hand, str);            retval = 0;            if( stat == yajl_status_client_canceled) {                fprintf(stderr, "%s/n", g.lastError);            }            break;        }    }    yajl_free(hand);        return retval;}

bool json_streamer_push(struct json_streamer *json, const unsigned char *data, size_t size){	yajl_status status;	if (!json || !json->yajl || !data || !size)		return false;	status = yajl_parse(json->yajl, data, size);	if (status == yajl_status_client_canceled)		yajl_init(json, json->frame_callback, json->userdata, true);	return (status != yajl_status_error);}

TEST_F(Yajl, yajl_parse_nullcallbacks) {	for (size_t i = 0; i < kTrialCount; i++) {		yajl_handle hand = yajl_alloc(&nullcallbacks, NULL, NULL);		yajl_status stat = yajl_parse(hand, (unsigned char*)json_, length_ - 1);		//ASSERT_EQ(yajl_status_ok, stat);		if (stat != yajl_status_ok) {			unsigned char * str = yajl_get_error(hand, 1, (unsigned char*)json_, length_ + 1);			fprintf(stderr, "%s", (const char *) str);		}		stat = yajl_complete_parse(hand);		ASSERT_EQ(yajl_status_ok, stat);		yajl_free(hand);	}	}

void reformat(ErlDrvPort port, char* buf, int len){    yajl_handle hand;    /* generator config */    yajl_gen_config conf = { 1, "  " };	yajl_gen g;    yajl_status stat;    /* allow comments */    yajl_parser_config cfg = { 1, 1 };    g = yajl_gen_alloc(&conf, NULL);    /* ok.  open file.  let's read and parse */    hand = yajl_alloc(&callbacks, &cfg, NULL, (void *) g);        /* read file data, pass to parser */    stat = yajl_parse(hand, (unsigned char*) buf, len);    if (stat != yajl_status_ok &&        stat != yajl_status_insufficient_data)    {        char* err = (char*) yajl_get_error(hand, 1, (unsigned char*) buf, len);        int len = strlen(err);        ErlDrvTermData msg[] = {            ERL_DRV_ATOM, driver_mk_atom("error"),             ERL_DRV_BUF2BINARY, (ErlDrvTermData) err, (ErlDrvUInt) len,            ERL_DRV_TUPLE, 2        };        driver_send_term(port, driver_caller(port), msg, sizeof(msg) / sizeof(msg[0]));    } else {        const unsigned char* json;        unsigned int len;        yajl_gen_get_buf(g, &json, &len);        ErlDrvTermData msg[] = {            ERL_DRV_ATOM, driver_mk_atom("ok"),            ERL_DRV_BUF2BINARY, (ErlDrvTermData) json, (ErlDrvUInt) len,            ERL_DRV_TUPLE, 2        };        driver_send_term(port, driver_caller(port), msg, sizeof(msg) / sizeof(msg[0]));        yajl_gen_clear(g);    }    yajl_gen_free(g);    yajl_free(hand);}

/** * Feed one chunk of data to the JSON parser. */int json_process_chunk(modsec_rec *msr, const char *buf, unsigned int size, char **error_msg) {    if (error_msg == NULL) return -1;    *error_msg = NULL;    /* Feed our parser and catch any errors */    msr->json->status = yajl_parse(msr->json->handle, buf, size);    if (msr->json->status != yajl_status_ok) {        /* We need to free the yajl error message later, how to do this? */        *error_msg = yajl_get_error(msr->json->handle, 0, buf, size);        return -1;    }    return 1;}