SFL: String handling functions

The string handling functions are used when you need to manipulate strings in a program. A number of functions exists, and they are each explained individually on the following pages.

The string template functions are helpful when handling large strings that are used multiple times but must be slightly different every time, such as strings that contain sensor data to send to an external device. See strTemplateCreate for more details.

	•strFormat	Formats a string.
	•strGetValues	Extracts numerical values from a string.
	•strGetStrings	Extracts string values from a string.
	•strToInt	Converts a string to a number (INT).
	•hexToInt	Converts a hex string to a number (INT).
	•strToDint	Converts a string to a number (DINT).
	•hexToDint	Converts a hex string to a number (DINT).
	•strToSint	Converts a string to a number (SINT).
	•hexToSint	Converts a hex string to a number (SINT).
	•strCompare	Compare two strings.
	•strConcat	Concatenate two strings.
	•strLeft	Extracts the left part of a string.
	•strRight	Extracts the right part of a string.
	•strMid	Extracts part of a string.
	•strLen	Finds the length (number of characters) of a string.
	•strLookup	Find a string in a list of strings.
	•strFind	Checks if a string is contained within another string.
	•strToken	Extracts a string from a delimited string.
	•strRemoveSpaces	Removes leading/trailing spaces in a string.
	•sintToStr	Converts a number (SINT) to a string.
	•sintToHex	Converts a number (SINT) to a hex string.
	•intToStr	Converts a number (INT) to a string.
	•intToHex	Converts a number (INT) to a hex string.
	•dintToStr	Converts a number (DINT) to a string.
	•dintToHex	Converts a number (DINT) to a hex string.
	•strToMemory	Copies contents of a string to memory.
	•strFromMemory	Copies contents of memory to a string.
	•strEncode64	Encodes a string with base 64.
	•strDecode64	Decodes a base 64 encoded string.
	•strMemoryUsage	Get information about memory usage of dynamic strings.
	•strTemplateCreate	Create a string template to perform fast replacement of sub-strings.
	•strTemplateFree	Release the string template,
	•strTemplateVarInfo	Get information about the variables found in the string template.
	•strTemplateSetVar	Update the value of a variable in the string template.
	•strTemplateGenerateString	Generate a string from the string template.

For floating-point string conversion, please refer to the Floating-Point Math section.