Mid Function/Assignment

Syntax:

Mid[$](S$, Index[, Len])

-or-

Mid[$](strvar, Index[, Len]) = S$

Group:

String

Description:

Function: Return the substring of S$ starting at Index for Len chars.

Instruction: Assign S$ to the substring in strvar starting at Index for Len chars.

Note: A similar function, MidB, returns the Len bytes starting a byte Index.

 

Parameter

Description (Mid Function)

S$

Copy chars from this string value. If this value is Null then Null is returned.

Index

Start copying chars starting at this index value. If the string is not that long then return a null string.

Len

Copy this many chars. If the S$ does not have that many chars starting at Index then copy the remainder of S$.

 

 

Parameter

Description (Mid Assignment)

strvar

Copy chars from this string value. If this value is Null then Null is returned.

Index

Change strvar starting at this index value. If the string is not that long then it is not changed.

S$

Copy chars from this string value.

Len

The number of chars copied is smallest of: the value of Len, the length of S$ and the remaining length of strvar. (If this value is omitted then the number of chars copied is the smallest of: the length of S$ and the remaining length of strvar.)

 

See Also:

InStr( ), Left$( ), Len( ), Replace$( ), Right$( ).

 

Example:


Sub Main
  S$ = "Hello There"
  Mid$(S$,7) = "?????????"
  Debug.Print S$ '"Hello ?????"
  Debug.Print Mid$("Hello",2,1) '"e"
End
Sub