List retrieve

LIST_RETRIEVE

Type Function	STRING
Input SEP	BYTE (separation sign the list)
POS	INT (position of list element)
I / O LIST	STRING(LIST_LENGTH) (input list)
Output	STRING(LIST_LENGTH) (string output)
	LIST_RETRIEVE passes the item at the position POS from a list and deletes the corresponding item in the list. The list consists of Strings (elements) that begin with the separation character SEP. The first element of the list is at position 1. The function returns an empty string if no element is at the position POS.

Example:

Example : LIST_RETRIEVE('&ABC&23&&NX&, 38, 1) = 'ABC'   LIST = '&23&&NX&' LIST_RETRIEVE('&ABC&23&&NX', 38, 2) = '23'    LIST = '&ABC&&NX' LIST_RETRIEVE('&ABC&23&&NX', 38, 3) = ''  LIST = '&ABC&23&NX' LIST_RETRIEVE('&ABC&23&&NX', 38, 4) = 'NEXT'    LIST = '&ABC&23&' LIST_RETRIEVE('&ABC&23&&NX', 38, 5) = ''  LIST = '&ABC&23&&NX' LIST_RETRIEVE('&ABC&23&&NX', 38, 0) = ''   LIST = '&ABC&23&&NX'