Hi Tom,
Your itab must not be of type string, it must be type char. Try:
REPORT sy-repid.
DATA itab TYPE TABLE OF text100.
* some comment
READ REPORT sy-repid INTO itab.
DELETE itab WHERE table_line IS INITIAL or TABLE_LINE(1) eq '*'.
sy-tfill = lines( itab ).
write sy-tfill.
.
Cheers,
Custodio
