01 some-string PIC X(32).
...
MOVE " a string literal" TO some-string
DISPLAY ":" some-string ":"
DISPLAY ":" FUNCTION TRIM(some-string) ":"
DISPLAY ":" FUNCTION TRIM(some-string LEADING) ":"
DISPLAY ":" FUNCTION TRIM(some-string TRAILING) ":"
Showing
: a string literal :
:a string literal:
:a string literal :
: a string literal: