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decuslib20-04
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decus/20-0135/10/getvis.sim
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00100 ! GETVISTAPARAMETERS, written by Mats Wallin, FOA 142, 78-07-25 ;
00200 OPTIONS(/E/-A/-D/-I);
00300 EXTERNAL BOOLEAN PROCEDURE meny, rescan, tmpout;
00400 EXTERNAL INTEGER PROCEDURE checkint, search, sscan;
00500 EXTERNAL TEXT PROCEDURE compress, conc, scanto, storbokstav, tmpin;
00600 EXTERNAL REF (Infile) PROCEDURE findinfile;
00700 EXTERNAL CLASS termty;
00800
00900 ! This procedure is used to get values for some of the parameters
01000 ! before a call of the (external) class VISTA. The procedure tries
01100 ! to determine the TTY type by looking in the following places:
01200 ! (in ascending priority order)
01300 !
01400 ! 1. File SWITCH.INI on user ppn, line labeled TERMINAL
01500 ! 2. TMPCORE file TMP:TRM
01600 ! 3. The monitor command starting the program, using RESCAN.
01700 ! 4. If not yet found, or false info, ask the user.
01800 !
01900 ! In addition, if there is no info on TMP:TRM or info is provided
02000 ! by the user via RESCAN or directly by this procedure. The procedure
02100 ! creates TMP:TRM and writes on it the info found.
02200 !
02300 ! NOTE: If you would like to use RESCAN in your program,
02400 ! instead of the expression: IF rescan THEN ...
02500 ! you should use the expression:
02600 ! IF Sysin.Image.Strip =/= NOTEXT THEN ...
02700 ! and then NOT call Inimage, as that is already done by this procedure.
02800 ! That is possible only if info was found according to 1-3 above.
02900 !
03000 ! Example of use:
03100 !
03200 ! .
03300 ! .
03400 ! INTEGER a, b, c;
03500 ! TEXT t;
03600 ! getvistaparameters(a, b, c, t);
03700 ! vista (a, b, Sysin, Sysout, FALSE, c, t, NOTEXT) BEGIN
03800 ! .
03900 ! .
04000 !
04100 ! Extra external procedures required: (not in vista)
04200 ! BOOLEAN rescan, INTEGER search, sscan,
04300 ! TEXT compress, conc, REF (Infile) findinfile;
04400 PROCEDURE getvistaparameters(chars, lines, termnr, message);
04500 NAME chars, lines, termnr, message;
04600 INTEGER chars, lines, termnr; TEXT message;
04700 INSPECT NEW termty DO BEGIN
04800 TEXT ARRAY arg, key[1:7];
04900 INTEGER i, position, cc, ll, tt, alf, dca;
05000 BOOLEAN writetmp;
05100 TEXT txt;
05200
05300 TEXT PROCEDURE numbertext(i); INTEGER i;
05400 BEGIN
05500 TEXT t;
05600 t:- Blanks(IF i < 10 THEN 1
05700 ELSE IF i < 100 THEN 2 ELSE 3);
05800 t.Putint(i);
05900 numbertext:- t;
06000 END;
06100
06200 PROCEDURE check(bool); BOOLEAN bool;
06300 BEGIN
06400 PROCEDURE test_new_value(mem, num);
06500 NAME mem; INTEGER mem, num;
06600 IF arg[num] =/= NOTEXT THEN BEGIN
06700 mem:= num;
06800 arg[num]:- NOTEXT;
06900 END;
07000
07100 writetmp:= bool;
07200 FOR i:= 4, 5 DO test_new_value(alf, i);
07300 FOR i:= 6, 7 DO test_new_value(dca, i);
07400 END;
07500
07600 txt:- Copy("/T:/L:/C:/ALF/-ALF/DCA/-DCA");
07700 key[1]:- txt.Sub(1, 3);
07800 key[2]:- txt.Sub(4, 3);
07900 key[3]:- txt.Sub(7, 3);
08000 key[4]:- txt.Sub(10, 4);
08100 key[5]:- txt.Sub(14, 5);
08200 key[6]:- txt.Sub(19, 4);
08300 key[7]:- txt.Sub(23, 5);
08400 ! Check file SWITCH.INI ;
08500 INSPECT findinfile("SWITCH.INI") DO BEGIN
08600 Open(Blanks(80));
08700 txt:- Image.Sub(1, 5);
08800 Inimage;
08900 WHILE NOT (Endfile OR storbokstav(txt) = "TERMI") DO Inimage;
09000 IF NOT Endfile THEN BEGIN
09100 txt:- Image.Strip;
09200 scanto(txt, ' ');
09300 txt:- txt.Sub(txt.Pos, txt.Length - txt.Pos + 1);
09400 sscan(txt, 7, arg, key, 1);
09500 check(TRUE);
09600 END;
09700 END;
09800
09900 ! Check TMP:TRM ;
10000 txt:- tmpin("TRM", FALSE);
10100 IF txt.Strip =/= NOTEXT THEN BEGIN
10200 txt:- scanto(txt, Char(13));
10300 sscan(txt, 7, arg, key, 1);
10400 check(FALSE);
10500 END;
10600
10700 ! Check command line ;
10800 IF rescan THEN BEGIN
10900 Inimage;
11000 txt:- Sysin.Image.Strip;
11100 scanto(txt, '-');
11200 IF txt.Pos > 1 THEN BEGIN
11300 txt:- txt.Sub(txt.Pos, txt.Length - txt.Pos + 1);
11400 sscan(txt, 7, arg, key, 0);
11500 check(TRUE);
11600 END;
11700 END;
11800
11900 IF arg[1].Strip == NOTEXT THEN arg[1]:- Copy("Mats Wallin");
12000 ! so that MENY will not yield TRUE when arg[1] == NOTEXT ;
12100 IF meny(arg[1], tt, tr, 21) THEN txt:- arg[1] ELSE tt:= 0;
12200 IF checkint(arg[2]) = 1 THEN ll:= arg[2].Getint;
12300 IF checkint(arg[3]) = 1 THEN cc:= arg[3].Getint;
12400 WHILE tt <= 0 DO BEGIN
12500 type_menu(sysout);
12600 Outtext("(Other) display.");
12700 Outimage;
12800 Outtext("Switches: /DCA or /-DCA = Direct Cursor Adressing,"
12900 "/ALF or /-ALF = Auto LF"); Outimage;
13000 Inimage;
13100 txt:- Sysin.Image.Strip;
13200 IF txt =/= NOTEXT THEN BEGIN
13300 sscan(txt, 7, arg, key, 1);
13400 check(TRUE);
13500 END;
13600 txt.Setpos(1); txt:- scanto(txt, '/');
13700 IF txt == NOTEXT THEN txt:- Copy("Mats Wallin");
13800 IF NOT meny(txt, tt, tr, 21) THEN BEGIN
13900 Outtext(IF tt = -1 THEN "Your answer was ambiguous!"
14000 ELSE "The computer did not understand!"); Outimage;
14100 Outtext("Please give another answer:"); Outimage;
14200 END;
14300 END;
14400 IF ll = 0 THEN ll:= ldefault(tt);
14500 WHILE ll = 0 DO BEGIN
14600 Outtext("Give screen height wanted: "); Breakoutimage;
14700 Inimage;
14800 IF checkint(Sysin.Image) = 1 THEN ll:= Inint;
14900 END;
15000 IF cc = 0 THEN cc:= cdefault(tt);
15100 WHILE cc <= 0 DO BEGIN
15200 Outtext("Give screen width: "); Breakoutimage;
15300 Inimage;
15400 IF checkint(Sysin.Image) = 1 THEN cc:= Inint - 1;
15500 END;
15600 txt:- conc(tr[tt], key[2], numbertext(ll), key[3], numbertext(cc));
15700 position:= txt.Length;
15800 FOR i:= alf, dca DO IF i > 0 THEN txt:- conc(txt, key[i]);
15900 IF txt.Length > position THEN
16000 message:- txt.Sub(position + 1, txt.Length - position);
16100 IF writetmp THEN tmpout("TRM", txt);
16200 chars:= cc; lines:= ll; termnr:= tt;
16300 END;