( Line numbers for the user are 1-based, but in code, they're
0-based. )
VARIABLE EDPOS
: _bpos 64 * BLK( + ;
: T 1- DUP EDPOS ! _bpos (print) CRLF ;
: P
EDPOS @ _bpos C<
64 0 DO ( bpos c )
DUP 0xd = IF DROP 0 THEN
2DUP SWAP I + C!
DUP IF DROP C< THEN
LOOP
2DROP
BLK!!
;