trimRight

Short summary

This method is used to remove the whitespace from the end of the string. It does not really remove it, it just decreases the string length.

Parameters

Name	Type	Comment	Kind
stringAddress	POINTER TO BYTE	start address of the string	input
stringLength	UDINT	length of the string stringAddress	inout
trimString	BOOL	TRUE means remove the whitespace, FALSE means do not remove the whitespace	input

Code

Declaration

METHOD PROTECTED trimRight
VAR_INPUT
	(* start address of the string *)
	stringAddress	:POINTER TO BYTE;
END_VAR
VAR_IN_OUT
	(* length of the string ``stringAddress`` *)
	stringLength	:UDINT;
END_VAR
VAR_INPUT
	(* ``TRUE`` means remove the whitespace, ``FALSE`` means do not remove the whitespace *)
	trimString		:BOOL;
END_VAR
VAR
	(* index of the current character *)
	character	:LINT;
END_VAR

Implementation

RETURN(NOT trimString OR_ELSE stringAddress = 0 OR_ELSE stringLength <= 0);

character := stringLength;
WHILE(character >=0) DO
	RETURN (NOT THIS^.isCharWhiteSpace(stringAddress[character := character-1]));
	stringLength := stringLength-1;
END_WHILE