FB_JsonSaxPrettyWriter

This function block has a difference from FB_JsonSaxWriter: it adds matching whitespaces for better readability of a JSON document.

	Strings in UTF-8 format The variables of type STRING used here are based on the UTF-8 format. This STRING formatting is common for MQTT communication as well as for JSON documents. In order to be able to receive special characters and texts from a wide range of languages, the character set in the Tc3_IotBase and Tc3_JsonXml libraries is not limited to the typical character set of the data type STRING. Instead, the Unicode character set in UTF-8 format is used in conjunction with the data type STRING. If the ASCII character set is used, there is no difference between the typical formatting of a STRING and the UTF-8 formatting of a STRING. Further information on the UTF-8 STRING format and available display and conversion options can be found in the documentation for the Tc2_Utilities PLC library.

Syntax

FUNCTION_BLOCK FB_JsonSaxPrettyWriter
VAR_OUTPUT
  initStatus     : HRESULT;
END_VAR

Name	Type
initStatus	HRESULT

Name	Description
SetFormatOptions	Adjusts the general formatting options for an instance of the [<=>] FB_JsonSaxPrettyWriter.
SetIndent	Customizes the indentation.

All other methods can be found at FB_JsonSaxWriter.

TwinCAT version	Hardware	Libraries to be integrated
TwinCAT 3.1, Build 4022	x86, x64, ARM	Tc3_JsonXml