Robo-FTP User's Guide > Script Programming > Script Commands > All Script Commands > SETMID

Syntax:	SETMID	[ variable ] = [ value ] [ cnt ] [ at ]
Arguments:	[ variable ]	Variable to assign; if the variable does not previously exist it is created.
	[ value ]	Variable or string defining the value from which the substring is to be extracted.
	[ cnt ]	Variable, string, or numeric constant defining the length of the substring; this value must resolve to a numeric value less than or equal to the length of [ value ].
	[ at ]	Variable, string, or numeric constant defining the position in [ value ] where the substring extraction is to begin; the first character in a string is at position 1.
Options:	none

This script command extracts [ cnt ] characters from within [ value ] beginning with character number [ at ] and saves the result in [ variable ].

Consider the following example.

;; assign a variable to a string

SET string = "this is a string"

;; extract 2 characters from mid-string starting at character #6

SETMID substring = string 2 6

;; another example of syntax to extract 2 characters from mid-string starting at character #6

SETNUM len = 2

SETNUM startat = 6

SETMID substring = string len startat

The resulting substring variable contains the value "is".