Function: Extract Substring within a Tab-delimited String

	Function: Extract Substring within a Tab-delimited String
Function	Function to extract a substring between tabs in a tab-delimited string.
Version	version:20190922, 1.0
Author	D. R. G. Mitchell
Acknowledgements	-
Comments	This function may be useful for parsing tab-delimited text being read in from a file. To convert it to use other delimiters eg comma, simply change the ascii code (9 for a tab) to that of your target delimiter.
System Requirements	Should be compatible with all recent versions of DigitalMicrograph.
Known Issues	-
Supported	Yes
Included Files	Main script file.
Source Code	// see attached script

Dave Mitchell's DigitalMicrograph™ Scripting Website