By Bezemer J.L.
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All lines following it will move down. If you happen to use line 15 you’re in trouble since that one will be lost: 0 OK CHAPTER 4. A GUIDED TOUR 46 0 s 0 s l Scr # 0 0 1 2 : ProcessFile 3 begin 4 refill 5 while 6 0 parse-word 7 type 13 emit 10 emit 8 repeat 9 ; 10 11 12 13 14 15 ^ 0 OK Yes, as long as you’re not entering a command with a trailing text parameter, you can enter multiple commands on a single line. So this one tells the editor ”spread at line 0, spread at line 0, list”. Now we’re going to enter our comment line: 0 p ( Conversion from UNIX ASCII files to DOS ASCII files - I) OK l Scr 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 # 0 ( Conversion from UNIX ASCII files to DOS ASCII files - I) : ProcessFile begin refill while 0 parse-word type 13 emit 10 emit repeat ; ^( Conversion from UNIX ASCII files to DOS ASCII files - I) That will do nicely.
Scr’. They can only be edited with the 4tH editor or other Forth blockfile editors. hx’ (Hcode eXecutable). 2 Main program You will find a binary program within this package called 4tH. You can copy this binary to any directory. 4tH is a small development system by itself. When you start it, it will automatically enter interactive mode and show you a menu not unlike early versions of Turbo Pascal. You can edit, compile, run and debug programs from the 4tH prompt. Please read chapter 4 for more details.
We can do that since the cursor is at the right position. Now let’s enter our final word: 2 p : OpenFiles 0 OK 0 OK CHAPTER 4. A GUIDED TOUR 55 OK 3 p argn 3 < abort" Usage: convert infile outfile" OK 4 p input 1 OpenFile OK 5 p output 2 Openfile OK 6 p ; OK l Scr 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 # 1 ( Conversion from UNIX ASCII files to DOS ASCII files - II) : OpenFiles argn 3 < abort" Usage: convert infile outfile" input 1 OpenFile output 2 Openfile ; ^( Conversion from UNIX ASCII files to DOS ASCII files - II) 0 OK Almost there!
4tH, the friendly Forth compiler by Bezemer J.L.