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decuslib20-04
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decus/20-0135/10/vista.sim
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00030 COMMENT* package for control of display terminals*; OPTIONS(/l/e);
00060 COMMENT* Copyright (c) Swedish National Defense Research Institute*;
00090 COMMENT%IFNOT MACRO;
00120 COMMENT COMMENT%IF SIMULATION marks places to be modified to put
00150 vista as a subclass to simulation;
00180 COMMENT COMMENT%IF MVISTA marks places to give simplified
00210 minivista for use by VIDED package;
00240 COMMENT COMMENT%IF MACRO generates MACRO-10 program code defining
00270 global variables only;
00300 COMMENT COMMENT%IF CALLMAC generates SIMULA code calling MACRO
00330 versions of some procedures;
00360
00390 COMMENT%IF MACRO
00420 UNIVERSAL VTMVDA
00450 .DIRECTIVE .NOBIN
00480 SALL
00510 ;! No sorting of parameters, simple def of WRD macro
00540 DEFINE WRD(X,T,L)<
00570 C$==<X==C$>+1>
00600 DEFINE WORD(X)<WRD(X,A,1)>
00630 DEFINE REF(X)<WRD(X,R,1)>
00660 DEFINE TEXT(X)<WRD(X,T,2)>
00690 SYN WORD,INTEGER
00720 SYN WORD,BOOLEAN
00750 SYN WORD,CHARACTER
00780 SYN REF,ARRAY
00810
00840 C$==2 ;! Initial offset (no prefix)
00870 COMMENT%IFNOT MACRO;
00900
00930 COMMENT%IF MVISTA
00960 EXTERNAL CHARACTER PROCEDURE getch;
00990 EXTERNAL TEXT PROCEDURE maketext;
01020 COMMENT%IFNOT MVISTA;
01050 EXTERNAL CHARACTER PROCEDURE insinglechar;
01080 COMMENT%IFEND MVISTA;
01110 EXTERNAL CHARACTER PROCEDURE fetchar;
01140 EXTERNAL PROCEDURE depchar, outstring, forceout;
01170 EXTERNAL PROCEDURE echo, abort, outchr;
01200 EXTERNAL INTEGER PROCEDURE trmop, gettab, checkint;
01230 EXTERNAL BOOLEAN PROCEDURE meny;
01260 EXTERNAL TEXT PROCEDURE storbokstav, scanto;
01290 EXTERNAL CLASS termty;
01320 COMMENT%IF CALLMAC
01350 EXTERNAL PROCEDURE vtmcur, vtsynk, vtisng;
01380 EXTERNAL PROCEDURE outche; EXTERNAL INTEGER PROCEDURE iondx;
01410 COMMENT%IFNOT MVISTA;
01440 EXTERNAL BOOLEAN PROCEDURE tmpout;
01470 EXTERNAL TEXT PROCEDURE tmpin;
01500 EXTERNAL INTEGER PROCEDURE checkreal;
01530
01560 COMMENT%IFNOT SIMULATION;
01590 CLASS vista
01620 COMMENT%IF MVISTA
01650 COMMENT%IF CALLMAC
01680 CLASS mmista;
01710 COMMENT%IFNOT CALLMAC
01740 COMMENT%IFNOT SIMSET
01770 CLASS mvista;
01800 COMMENT%IF SIMSET
01830 CLASS msista;
01860 COMMENT%IFEND SIMSET
01890 COMMENT%IFEND CALLMAC
01920 COMMENT%IF MVISTA
01950 BEGIN
01980 COMMENT%IF SIMSET
02010 simset CLASS mvistax
02040 COMMENT%IFNOT SIMSET
02070 CLASS mvistax
02100 COMMENT%IFEND SIMSET
02130 COMMENT%IFEND MVISTA
02160 COMMENT%IF SIMULATION
02190 Simulation CLASS vistas
02220 COMMENT%IFEND SIMULATION;
02250 (width, height, terminalin, terminalout, q_echoenabled,
02280 terminaltype
02310 COMMENT%IFNOT MVISTA;
02340 , extraterminal, extraparameters);
02370 COMMENT%IFNOT MVISTA;
02400 VALUE extraterminal;
02430 COMMENT%IFNOT MACRO;
02460 COMMENT%IF MVISTA
02490 ,trmspeed);
02520 COMMENT%IFEND MVISTA;
02550 COMMENT%IFEND MACRO;
02580 INTEGER width; ! Screen width or less;
02610 INTEGER height; ! Screen height or less;
02640 COMMENT%IFNOT MACRO;
02670 REF (infile) terminalin; ! From the terminal, usually sysin;
02700 REF (printfile) terminalout; ! To the terminal, usually sysout;
02730 BOOLEAN q_echoenabled; ! TRUE = monitor echo, FALSE = program echo;
02760 COMMENT%IF MACRO
02790 REF termin
02820 REF termout
02850 BOOLEAN qechoenabled
02880 COMMENT%IFNOT MACRO;
02910 INTEGER terminaltype; ! Number of terminal type, 0 for not given;
02940 COMMENT%IF MACRO
02970 INTEGER trmtyp
03000 COMMENT%IFEND MACRO;
03030 COMMENT%IF MVISTA
03060 INTEGER trmspeed;
03090 COMMENT%IFNOT MVISTA;
03120 TEXT extraterminal; ! Text name of additional terminal type;
03150 TEXT extraparameters; ! Cursor control codes for this terminal type;
03180 COMMENT%IFEND MVISTA;
03210 COMMENT%IFNOT MACRO;
03240 COMMENT%IFNOT MVISTA;
03270 NOT HIDDEN PROTECTED q_echoenabled, q_display_output, terminalin,
03300 terminalout, synka, cpunumber, vt52, minitec,
03330 elite, kthelite, infoton, newelite, newkthelite, teletec, sattelite,
03360 tandberg, beehive, cdc71310s, cdc71310p, elite3025,
03390 elite1521, volkerd404, volker414h, buginfoton, lowintens, highintens,
03420 otherdisplay, i200, adm3a, vt100, fut3, fut2, fut1, ttyform,
03450 get_char_from_screen, scrollallow, echon, echoff, unknownchar,
03480 q_gotchar, cancel_display, extraparameters, synchronize, allow_cr,
03510 home_the_cursor, erasescreen, outchar, normaltext, specialtext,
03540 outimage, outtext, make_blank, move_the_cursor_to, trmspeed,
03570 blank_the_screen, stopblink, startblink, bell, q_verticalpos,
03600 eraseline, line_erasable, deleteline, insertline, deletechar,
03630 q_horizontalpos, up, down, left, right, altmode, restorechar,
03660 carriagereturn, linefeed, home, fill, null, tab, formfeed, verttab,
03690 terminaltype, screen, badscreen, controlchar, addaltmode, height,
03720 heightm1, width, widthm1, resume_display, delayer,
03750 upsingle, downsingle, leftsingle, rightsingle, homesingle,
03780 clearsingle, linesingle, eraseeol, insertchar;
03810 NOT HIDDEN PROTECTED insingle;
03840 NOT HIDDEN PROTECTED direct_cursor_addressing, leftimage;
03870 NOT HIDDEN PROTECTED stop_blink, start_blink, cause_real_time_delay,
03900 restore_the_whole_screen, blank_line, displaying, outint, outfrac,
03930 outreal, outfix, restore_one_char, inreal, inint, inimage, inyes,
03960 inword, verticalpos, horizontalpos, echoenabled, terminaloutimage,
03990 set_char_on_screen;
04020 COMMENT%IF SIMSET
04050 NOT HIDDEN Linkage, Link, Head;
04080 COMMENT%IFEND SIMSET;
04110 COMMENT%IF SIMULATION
04140 NOT HIDDEN Linkage, Link, Head;
04170 COMMENT%IF SIMULATION
04200 NOT HIDDEN Process, Time, Current, Passivate,
04230 Wait, Hold , Cancel, Accum, Main;
04260 COMMENT%IFEND SIMULATION;
04290 COMMENT%IFEND MVISTA;
04320 COMMENT%IF MVISTA
04350 VIRTUAL: PROCEDURE restore_the_whole_screen;
04380 COMMENT%IFEND MVISTA;
04410 BEGIN
04440
04470
04500 COMMENT%IFEND MACRO;
04530 COMMENT%IF MACRO
04560 ;! Variables in a block are sorted in order:
04590 ;! 1) Non-relocatable, 2) TEXT, 3) REF and ARRAY
04620
04650 IF1,<A$B==<R$B==<T$B==0>>> ;! Initial counters
04680 DEFINE WRD(X,T,L)<
04710 IF2,<IFDEF X,<PRINTX ERROR X redefinition>
04740 T'$B==<X==T'$B>+L>
04770 IF1,<IFE T'$B,<T'$B==C$>
04800 C$==C$+L>>
04830 COMMENT%IFEND MACRO;
04860 BOOLEAN scrollallow; ! Allow <LF> to scroll the screen;
04890 COMMENT%IFNOT MACRO;
04920 BOOLEAN direct_cursor_addressing; ! Move cursor that way;
04950 BOOLEAN allow_cr; ! Allow sending of <CR> code to the terminal;
04980 COMMENT%IF MACRO
05010 BOOLEAN directcursoraddressing; !
05040 BOOLEAN allowcr;
05070 COMMENT%IFEND MACRO;
05100 BOOLEAN synka; ! Cursor may be at wrong place on terminal screen;
05130 BOOLEAN unknownchar; ! Last read character was untreated char < ' ';
05160 BOOLEAN synchronizing; ! True during "synchronize" action only;
05190 INTEGER cpunumber; ! From monitor tables;
05220 INTEGER vt52; ! code for DEC VT52 terminal type;
05250 INTEGER minitec; ! code for TEC minitec terminal type;
05280 INTEGER elite; ! code for elite 2500 with auto-<LF> at <CR>;
05310 INTEGER kthelite; ! code for elite 2500 without auto-<LF> at <CR>;
05340 INTEGER infoton; ! code for infoton vista terminal type;
05370 INTEGER newelite; ! code for elite 1500 with auto-<LF> at <CR>;
05400 INTEGER newkthelite; ! code for elite 1500 without auto-<LF> at <CR>;
05430 INTEGER teletec; ! code for TEC teletec terminal type;
05460 INTEGER sattelite; ! code for INFOTON vistar sattelite;
05490 INTEGER tandberg; ! code for TANDBERG TDV 2000 terminal type;
05520 INTEGER beehive; ! code for minibee and BEEHIVE B 100 terminals;
05550 COMMENT%IFNOT MACRO;
05580 INTEGER cdc71310s; ! CDC 713-10 terminals, scroll mode;
05610 INTEGER cdc71310p; ! CDC 713-10 terminals, page mode;
05640 COMMENT%IF MACRO
05670 INTEGER cdc73s
05700 INTEGER cdc73p
05730 COMMENT%IFEND MACRO;
05760 INTEGER elite3025; ! Datamedia Elite 3025 terminal;
05790 INTEGER elite1521; ! Datamedia Elite 1521 terminal;
05820 COMMENT%IFNOT MACRO;
05850 INTEGER volkerd404; ! Volker 404 terminal;
05880 INTEGER volker414h; ! Volker 414h terminal;
05910 COMMENT%IF MACRO
05940 INTEGER vc404
05970 INTEGER vc414h
06000 COMMENT%IFEND MACRO;
06030 INTEGER buginfoton; ! Infoton without erase line feature;
06060 INTEGER i200; ! Infoton I 200 terminal;
06090 INTEGER adm3a; ! ADM 3 A terminal;
06120 INTEGER vt100; ! Digital VT 100 terminal in Vt52 mode;
06150 INTEGER fut3; ! Reserved for future terminal models;
06180 INTEGER fut2; ! Reserved for future terminal models;
06210 INTEGER fut1; ! Reserved for future terminal models;
06240 INTEGER otherdisplay; ! Unknown display terminal;
06270 INTEGER maxterminals; ! 1 more than highest terminal type number;
06300 INTEGER ttyform; ! tty form setting before being called;
06330 COMMENT%IFNOT MVISTA (declared earlier %IF MVISTA);
06360 INTEGER trmspeed; ! speed of line to terminal in bits/second;
06390 COMMENT%IFEND MVISTA;
06420 COMMENT%IFNOT MACRO;
06450 INTEGER q_verticalpos; ! Current cursor position vertically;
06480 INTEGER q_horizontalpos; ! Current cursor position horizontally;
06510 COMMENT%IF MACRO
06540 INTEGER qverticalpos; !
06570 INTEGER qhorizontalpos;
06600 COMMENT%IFNOT MACRO;
06630 INTEGER widthm1; ! One less than screen width;
06660 INTEGER heightm1; ! One less than screen height;
06690 COMMENT%IF MACRO
06720 INTEGER widm1
06750 INTEGER heim1
06780 COMMENT%IFEND MACRO;
06810 INTEGER ioindex; ! comment for sysout, used by outche;
06840 CHARACTER lowintens; ! change to low intensity on screen;
06870 CHARACTER highintens; ! change to high intensity on screen;
06900 CHARACTER up; ! cursor up;
06930 CHARACTER left; ! cursor left;
06960 CHARACTER right; ! cursor right;
06990 CHARACTER down; ! cursor movement codes;
07020 CHARACTER formfeed; ! ASCII character;
07050 CHARACTER eraseline; ! Erases rest of line on some terminals;
07080 CHARACTER delayer;
07110 CHARACTER home; ! code to move cursor to upper left screen corner;
07140 COMMENT* ON CDC 713-10, this code moves to lower left corner*;
07170 CHARACTER carriagereturn; ! ASCII character;
07200 CHARACTER altmode; ! ASCII ESCAPE character, decimal 27;
07230 CHARACTER restorechar; ! code which, when given from terminal
07260 ;! causes screen to be restored (usually = altmode);
07290 CHARACTER linefeed; ! ASCII character;
07320 CHARACTER verttab; ! ASCII vertical tab character;
07350 CHARACTER null; ! ASCII character with decimal 0 value;
07380 CHARACTER tab; ! ASCII horizontal tab (HT) character;
07410 CHARACTER insline; ! inserts line on some terminal models;
07440 CHARACTER delline; ! deletes line on some terminal models;
07470 CHARACTER inschar; ! inserts character on some terminal models;
07500 CHARACTER delchar; ! deletes character on some terminal models;
07530 COMMENT%IFNOT MACRO;
07560 CHARACTER q_gotchar; ! Character inputted from the terminal;
07590 COMMENT%IF MACRO
07620 CHARACTER qgotchar;
07650 COMMENT%IFEND MACRO;
07680 CHARACTER startblink; ! Code to start blinking on terminal screen;
07710 CHARACTER bell; ! ASCII character;
07740 CHARACTER stopblink; ! Code to stop blinking on terminal screen;
07770 CHARACTER fill; ! Character with decimal value 127, RUB OUT code;
07800 CHARACTER erasescreen; ! Code to make the whole screen blank;
07830 COMMENT%IFNOT MACRO;
07860 CHARACTER address_screen; ! Code to start direct cursor addressing;
07890
07920 BOOLEAN line_erasable; ! True if eraseline is effective;
07950 INTEGER lineinsfillers; ! Number of fillers after insert line;
07980 COMMENT%IF MACRO
08010 CHARACTER addressscreen; !
08040
08070 BOOLEAN lineerasable; !
08100 BOOLEAN lineinsertable; !
08130 COMMENT%IFEND MACRO;
08160 BOOLEAN addaltmode; ! Terminal control codes to be preceded by ESC;
08190 BOOLEAN upsingle; ! TRUE = no escape in front of cursor up;
08220 BOOLEAN downsingle;
08250 BOOLEAN leftsingle;
08280 BOOLEAN rightsingle;
08310 BOOLEAN homesingle;
08340 BOOLEAN clearsingle; ! TRUE = no escape in front clear screen;
08370 BOOLEAN linesingle; ! TRUE = no escape in front of clear line;
08400 COMMENT%IFNOT MACRO;
08430 BOOLEAN q_display_output; ! Screen is to be output to the terminal;
08460 COMMENT%IF MACRO
08490 BOOLEAN qdisplayoutput;
08520 COMMENT%IFEND MACRO;
08550 BOOLEAN badscreen; ! Terminal screen may be jumbled;
08580 BOOLEAN controlchar; ! Last input char was terminal control code;
08610 BOOLEAN ttyqz; ! Local for QZ computer centre;
08640 BOOLEAN ttyzq; ! Local for QZ computer centre;
08670
08700 COMMENT%IFNOT MACRO;
08730 TEXT deleteline; ! Removes line, scrolls rest of screen up;
08760 TEXT insertline; ! Adds blank line, scroll rest down;
08790 TEXT deletechar; ! Removes char, shifts rest to the left;
08820 TEXT eraseeol; ! Erase to end of line;
08850 TEXT insertchar; ! insert character;
08880 COMMENT%IFEND MACRO;
08910 COMMENT%IF MACRO
08940 TEXT deletline
08970 TEXT inserline
09000 TEXT deletchar
09030 TEXT eraseeol
09060 TEXT inserchar
09090 COMMENT%IFEND MACRO;
09120 TEXT leftimage; ! Image with left code in first position;
09150 COMMENT%IFNOT CALLMAC;
09180 COMMENT%IFNOT MACRO;
09210 TEXT elitecursors; ! Direct cursor adress table for elite terminals;
09240 COMMENT%IFEND MACRO;
09270 COMMENT%IFEND CALLMAC;
09300 COMMENT%IFNOT MVISTA;
09330 TEXT terminaloutimage; ! image of terminalout file class;
09360 COMMENT%IF MVISTA
09390 TEXT extraparameters;
09420
09450 COMMENT%IF MACRO
09480 ARRAY screen ; ! TEXT ARRAY screen[0:height-1];
09510 COMMENT%IFNOT MACRO;
09540 TEXT ARRAY screen[0:height-1]; ! Internal copy of screen contents;
09570 COMMENT%IF MVISTA
09600 COMMENT%IFNOT CALLMAC
09630 REF (q_insingle) p_q_insingle; ! CALLing class faster than ;
09660 COMMENT%IF MVISTA
09690 REF (insingle) p_insingle; ! procedure call;
09720 COMMENT%IFEND CALLMAC
09750 COMMENT%IFEND MVISTA;
09780 COMMENT%IFNOT mvista;
09810
09840 INTEGER PROCEDURE horizontalpos; horizontalpos:= q_horizontalpos;
09870 COMMENT to stop users changing the internal variable with
09900 the current horizontal cursor position;
09930
09960 INTEGER PROCEDURE verticalpos; verticalpos:= q_verticalpos;
09990 COMMENT current vertical cursor position;
10020
10050 BOOLEAN PROCEDURE echoenabled; echoenabled:= q_echoenabled;
10080 COMMENT to stop users changing the internal variable telling
10110 if input chars are echoed by the program or the monitor;
10140
10170 BOOLEAN PROCEDURE displaying; displaying:= q_display_output;
10200 COMMENT to stop users chaning the internal variable telling
10230 if picture is to be displayed on the terminal screen;
10260
10290 COMMENT%IFEND mvista;
10320 PROCEDURE echon;
10350 BEGIN COMMENT to start monitor echoing of input characters;
10380 !z_t(1); !z_t(-2); q_echoenabled:= TRUE;
10410 IF q_display_output THEN echo(terminalin,4);
10440 END;
10470
10500 PROCEDURE echoff;
10530 BEGIN COMMENT to start program echoing of input characters;
10560 !z_t(-1); !z_t(2); q_echoenabled:= FALSE;
10590 IF q_display_output THEN echo(terminalin,2);
10620 END;
10650 PROCEDURE resume_display;
10680 COMMENT to start displaying the picture on the terminal screen;
10710 IF NOT q_display_output THEN
10740 BEGIN !z_t(3); !z_t(-4); q_display_output:= TRUE;
10770 COMMENT%IFNOT MVISTA;
10800 restore_the_whole_screen;
10830 COMMENT%ENDIF MVISTA;
10860 echo(terminalin,IF q_echoenabled THEN 4 ELSE 2);
10890 END;
10920
10950 PROCEDURE cancel_display;
10980 COMMENT to stop displaying the picture on the terminal screen;
11010 IF q_display_output THEN
11040 BEGIN !z_t(-3); !z_t(4); COMMENT erase screen;
11070 IF addaltmode AND NOT homesingle THEN
11100 outchr(terminalout,altmode,1);
11130 outchr(terminalout,home,1);
11160 IF addaltmode AND NOT clearsingle
11190 THEN outchr(terminalout,altmode,1);
11220 outchr(terminalout,erasescreen,1); outchr(terminalout,delayer,10);
11250 forceout(terminalout);
11280 q_display_output:= FALSE;
11310 echo(terminalin,4);
11340 END;
11370 COMMENT%IFNOT MVISTA;
11400 PROCEDURE cause_real_time_delay(number_of_fillers);
11430 COMMENT: Causes a moving picture on the screen to move slower by
11460 outputting a number_of_fillers. Example: If the speed of the
11490 terminal is 240 characters/second, then cause_real_time_delay(120)
11520 will cause a 0.5 seconds delay;
11550 INTEGER number_of_fillers;
11580 IF q_display_output THEN
11610 outchr(terminalout,delayer,number_of_fillers);
11640 COMMENT%IFEND MVISTA;
11670 CHARACTER PROCEDURE get_char_from_screen(h, v);
11700 COMMENT: If (h,v) indicates a position on the screen, then the
11730 character in that position is returned. If (h, v) indicates a
11760 position outside the screen, then char(0) is returned;
11790 INTEGER h, v;
11820 IF v >= 0 AND v <= height THEN
11850 BEGIN
11880 get_char_from_screen:= fetchar(screen(v),h+1);
11910 END;
11940 COMMENT%IFEND MVISTA;
11970 PROCEDURE specialtext;
12000 COMMENT depending on terminal type, this procedure may give
12030 text which is low intensity, inverse video or underlined. Does
12060 not work on all terminal types;
12090 IF lowintens NE char(0) THEN
12120 BEGIN
12150 IF addaltmode THEN outchr(terminalout,altmode,1);
12180 IF terminaltype = elite3025 THEN outchr(terminalout,'O',1);
12210 outchr(terminalout,lowintens,1);
12240 END;
12270
12300 PROCEDURE normaltext;
12330 IF highintens NE char(0) THEN
12360 BEGIN
12390 COMMENT indicate normal text again by intensity
12420 shift or normal video;
12450 IF addaltmode THEN outchr(terminalout,altmode,1);
12480 IF terminaltype = elite3025 THEN outchr(terminalout,'O',1);
12510 outchr(terminalout,highintens,1);
12540 outchr(terminalout,delayer,1);
12570 END;
12600
12630 COMMENT%IFNOT MVISTA;
12660
12690 PROCEDURE start_blink;
12720 COMMENT will start blinking screen text and output a a space on
12750 the screen;
12780 BEGIN COMMENT on infoton terminals, blinking text is between start
12810 blink and stop blink codes on the screen. On most other terminals,
12840 blinking text is text sent between sending start blink and stop
12870 blink codes to the terminal;
12900 IF terminaltype = infoton OR terminaltype = cdc71310s
12930 OR terminaltype = cdc71310p THEN
12960 outchar(startblink) ELSE outchar(' ');
12990 IF terminaltype = minitec OR terminaltype = beehive
13020 OR terminaltype = elite3025 THEN
13050 BEGIN outchr(terminalout,altmode,1);
13080 IF terminaltype = elite3025 THEN outchr(terminalout,'O',1);
13110 outchr(terminalout,startblink,1);
13140 END ELSE IF terminaltype >= elite
13170 AND terminaltype <= newkthelite
13200 THEN outchr(terminalout,startblink,1);
13230 outchr(terminalout,bell,1);
13260 END;
13290 COMMENT%IFEND MVISTA;
13320 COMMENT%IFNOT MVISTA;
13350
13380 PROCEDURE stop_blink;
13410 COMMENT will stop blinking screen text and output a a space on the
13440 screen;
13470 BEGIN
13500 IF terminaltype = infoton OR terminaltype = cdc71310s
13530 OR terminaltype = cdc71310p THEN
13560 outchar(stopblink) ELSE outchar(' ');
13590 IF terminaltype = minitec OR terminaltype = beehive
13620 OR terminaltype = elite3025 THEN
13650 BEGIN outchr(terminalout,altmode,1);
13680 IF terminaltype = elite3025 THEN outchr(terminalout,'O',1);
13710 outchr(terminalout,stopblink,1);
13740 END ELSE IF terminaltype >= elite
13770 AND terminaltype <= newkthelite
13800 THEN synchronize(q_horizontalpos,q_verticalpos);
13830 END;
13860 COMMENT%IFEND MVISTA;
13890 PROCEDURE synchronize(hnew, vnew);
13920 COMMENT: If there is a risk that the program does not know where
13950 the cursor is on the screen, then this procedure will anyway for
13980 sure move the cursor to the position (hnew, vnew);
14010 INTEGER hnew, vnew;
14040 COMMENT%IFNOT CALLMAC;
14070 IF q_display_output THEN
14100 BEGIN
14130 IF NOT direct_cursor_addressing THEN local_home_the_cursor
14160 ELSE synchronizing:= TRUE;
14190 move_the_cursor_to(hnew,vnew);
14220 synchronizing:= FALSE;
14250 END;
14280 COMMENT%IF CALLMAC
14310 vtsynk(heightm1,hnew,vnew);
14340 COMMENT%IFNOT MVISTA;
14370 PROCEDURE restore_the_whole_screen;
14400 COMMENT: If the picture of the screen has been destroyed, then a
14430 call to this procedure will make the picture on the screen equal
14460 to the internal picture in the program;
14490 IF q_display_output THEN
14520 INSPECT terminalout DO
14550 BEGIN
14580 INTEGER h, v, hold, vold;
14610 hold:= q_horizontalpos; vold:= q_verticalpos;
14640 echo(terminalin,IF q_echoenabled THEN 4 ELSE 2);
14670 home_the_cursor; breakoutimage;
14700 IF addaltmode AND NOT clearsingle THEN
14730 outchr(terminalout,altmode,1);
14760 outchr(terminalout,erasescreen,1); outchr(terminalout,delayer,10);
14790 q_horizontalpos:= q_verticalpos:= 0;
14820 FOR v:= 0 STEP 1 UNTIL heightm1 DO
14850 BEGIN
14880 IF screen[v].strip =/= NOTEXT THEN
14910 BEGIN
14940 IF allow_cr THEN outchr(terminalout,carriagereturn,1)
14970 ELSE home_the_cursor;
15000 move_the_cursor_to(0,v); breakoutimage;
15030 outstring(terminalout,screen[v].strip);
15060 END;
15090 END;
15120 synchronize(hold,vold);
15150 END;
15180 COMMENT%IFEND MVISTA;
15210 COMMENT%IFNOT CALLMAC;
15240 PROCEDURE true_outchr(c); CHARACTER c;
15270 BEGIN
15300 COMMENT at the QZ computer centre, certain national characters are
15330 sometimes converted by the monitor before transmitting them to the
15360 terminal. This will cause errors if these characters are used for
15390 direct cursor addressing. This procedure makes the inverse
15420 conversion first, so that the correct code will be output;
15450 IF ttyqz THEN
15480 BEGIN IF ttyzq THEN
15510 BEGIN
15540 IF c = char(00035) THEN c:= char(124) ELSE
15570 IF c = char(00036) THEN c:= char(126) ELSE
15600 IF c = char(00064) THEN c:= char(92) ELSE
15630 IF c = char(00091) THEN c:= char(35) ELSE
15660 IF c = char(00092) THEN c:= char(64) ELSE
15690 IF c = char(00093) THEN c:= char(36) ELSE
15720 IF c = char(00096) THEN c:= char(91) ELSE
15750 IF c = char(00124) THEN c:= char(96) ELSE
15780 IF c = char(00126) THEN c:= char(93);
15810 END ELSE
15840 BEGIN
15870 IF c = char(00035) THEN c:= char(91) ELSE
15900 IF c = char(00036) THEN c:= char(93) ELSE
15930 IF c = char(00064) THEN c:= char(92) ELSE
15960 IF c = char(00091) THEN c:= char(35) ELSE
15990 IF c = char(00092) THEN c:= char(64) ELSE
16020 IF c = char(00093) THEN c:= char(36) ELSE
16050 IF c = char(00096) THEN c:= char(124) ELSE
16080 IF c = char(00124) THEN c:= char(96);
16110 END;
16140 END ELSE IF ttyzq THEN
16170 BEGIN
16200 IF c = char(00035) THEN c:= char(96) ELSE
16230 IF c = char(00036) THEN c:= char(126) ELSE
16260 IF c = char(00096) THEN c:= char(35) ELSE
16290 IF c = char(00126) THEN c:= char(36);
16320 END;
16350 outchr(terminalout,c,1);
16380 END of procedure true_outchr;
16410 COMMENT%IFEND CALLMAC;
16440 PROCEDURE move_the_cursor_to(horiz, vertic);
16470 COMMENT: Will move the cursor to the position(horiz, vertic) on
16500 the screen;
16530 INTEGER horiz, vertic;
16560 COMMENT%IF CALLMAC
16590 vtmcur(cpunumber,horiz,vertic);
16620 COMMENT%IFNOT CALLMAC;
16650 BEGIN
16680 INTEGER i;
16710 !z_t(5);
16740 IF q_display_output THEN
16770 BEGIN
16800 COMMENT%IFNOT MVISTA;
16830 IF badscreen THEN
16860 BEGIN badscreen:= FALSE; restore_the_whole_screen;
16890 END;
16920 COMMENT%IFEND MVISTA;
16950 IF direct_cursor_addressing THEN
16980 BEGIN
17010 ! Do not move if you are already there;
17040 IF NOT synchronizing AND horiz = q_horizontalpos
17070 AND vertic = q_verticalpos THEN GOTO moved;
17100
17130 IF terminaltype = minitec THEN
17160 BEGIN
17190 outchr(terminalout,altmode,1);
17220 outchr(terminalout,address_screen,1);
17250 true_outchr(char(127-horiz));
17280 true_outchr(char(127-vertic));
17310 END ELSE IF terminaltype >= elite
17340 AND terminaltype <= kthelite THEN
17370 BEGIN
17400 outchr(terminalout,address_screen,1);
17430 true_outchr(fetchar(elitecursors,horiz+1));
17460 true_outchr(fetchar(elitecursors,vertic+1));
17490 END ELSE IF terminaltype = newelite
17520 OR terminaltype = newkthelite OR terminaltype = elite1521
17550 OR terminaltype = i200 OR terminaltype = elite3025 THEN
17580 BEGIN
17610 IF addaltmode THEN outchr(terminalout,altmode,1);
17640 outchr(terminalout,address_screen,1);
17670 true_outchr(char(8r040+horiz));
17700 true_outchr(char(8r040+vertic));
17730 END ELSE IF terminaltype = volker414h THEN
17760 BEGIN
17790 outchr(terminalout,altmode,1); forceout(terminalout);
17820 outche(ioindex,address_screen); !DEC-10 transmits DC1 as
17850 DC1+DEL;
17880 true_outchr(char(IF horiz < 32 THEN horiz+96
17910 ELSE horiz));
17940 true_outchr(char(vertic+64));
17970 END ELSE
18000 BEGIN
18030 IF addaltmode THEN outchr(terminalout,altmode,1);
18060 outchr(terminalout,address_screen,1);
18090 true_outchr(char(8r040+vertic));
18120 true_outchr(char(8r040+horiz));
18150 END;
18180 GOTO moved;
18210 END;
18240 IF terminaltype = tandberg THEN
18270 BEGIN COMMENT TANDBERG TDV 2000 is funny on last screen line;
18300 IF q_verticalpos = heightm1 AND vertic < heightm1 THEN
18330 BEGIN outchr(terminalout,home,1);
18360 q_horizontalpos:= q_verticalpos:= 0;
18390 END;
18420 END;
18450 IF horiz < q_horizontalpos//2 THEN
18480 BEGIN
18510 q_horizontalpos:= 0;
18540 IF allow_cr AND vertic > q_verticalpos//2 THEN
18570 outchr(terminalout,carriagereturn,1) ELSE
18600 BEGIN
18630 IF addaltmode AND NOT homesingle
18660 THEN outchr(terminalout,altmode,1);
18690 outchr(terminalout,home,1);
18720 IF terminaltype = cdc71310s THEN q_verticalpos:= heightm1
18750 ELSE q_verticalpos:= 0;
18780 END;
18810 END;
18840 IF addaltmode THEN
18870 BEGIN
18900 FOR i:= horiz+1 STEP 1 UNTIL q_horizontalpos DO
18930 BEGIN IF NOT leftsingle THEN outchr(terminalout,altmode,1);
18960 outchr(terminalout,left,1);
18990 END;
19020 FOR i:= q_horizontalpos+1 STEP 1 UNTIL horiz DO
19050 BEGIN IF NOT rightsingle THEN outchr(terminalout,altmode,1);
19080 outchr(terminalout,right,1);
19110 END;
19140 FOR i:= vertic+1 STEP 1 UNTIL q_verticalpos DO
19170 BEGIN IF NOT upsingle THEN outchr(terminalout,altmode,1);
19200 outchr(terminalout,up,1);
19230 END;
19260 FOR i:= q_verticalpos+1 STEP 1 UNTIL vertic DO
19290 BEGIN IF NOT downsingle THEN outchr(terminalout,altmode,1);
19320 outchr(terminalout,down,1);
19350 END;
19380 END ELSE
19410 BEGIN
19440 outchr(terminalout,right,horiz-q_horizontalpos);
19470 outchr(terminalout,left,q_horizontalpos-horiz);
19500 outchr(terminalout,down,vertic-q_verticalpos);
19530 outchr(terminalout,up,q_verticalpos-vertic);
19560 END;
19590 END;
19620 moved:
19650 q_horizontalpos:= horiz; q_verticalpos:= vertic;
19680 !z_t(-5);
19710 END;
19740 COMMENT%IFEND CALLMAC;
19770 COMMENT%IFNOT MVISTA;
19800 PROCEDURE set_char_on_screen(setchar,horiz,vertic);
19830 COMMENT: Will output the character "setchar" onto the position
19860 (horiz,vertic) on the screen;
19890 CHARACTER setchar; INTEGER horiz, vertic;
19920 BEGIN
19950 move_the_cursor_to(horiz, vertic);
19980 BEGIN
20010 IF setchar = fill THEN setchar:= ' ' ELSE
20040 IF setchar < ' ' THEN setchar:= ' ';
20070 IF q_display_output THEN
20100 BEGIN outchr(terminalout,setchar,1);
20130 IF addaltmode THEN
20160 BEGIN IF NOT leftsingle THEN
20190 outchr(terminalout,altmode,1);
20220 END;
20250 outchr(terminalout,left,1);
20280 END;
20310 depchar(screen[q_verticalpos],q_horizontalpos+1,setchar);
20340 END;
20370 IF q_horizontalpos = width THEN
20400 BEGIN
20430 synchronize(0,q_verticalpos+1);
20460 END;
20490 END;
20520 COMMENT%IFEND MVISTA;
20550 PROCEDURE outchar(setchar);
20580 COMMENT Will output the character "setchar" onto the place where
20610 the cursor is on the screen. Thereafter, the cursor is advanced to
20640 the position after the outputted character;
20670 CHARACTER setchar;
20700 BEGIN
20730 BEGIN
20760 IF setchar = fill THEN setchar:= ' ' ELSE
20790 IF setchar < ' ' THEN
20820 BEGIN
20850 IF terminaltype <= 2 THEN !infoton or vt52;
20880 BEGIN
20910 IF setchar NE startblink AND setchar NE stopblink
20940 THEN setchar:= ' ' ELSE outchr(terminalout,bell,1);
20970 END ELSE setchar:= ' ';
21000 END;
21030 IF q_display_output THEN outchr(terminalout,setchar,1);
21060 depchar(screen[q_verticalpos],q_horizontalpos+1,setchar);
21090 END;
21120 q_horizontalpos:= q_horizontalpos+1;
21150 IF q_horizontalpos = width THEN
21180 BEGIN
21210 synchronize(0,q_verticalpos+1);
21240 END;
21270 END;
21300 COMMENT%IFNOT MVISTA;
21330 PROCEDURE blank_line(v); INTEGER v;
21360 COMMENT will make line v blank on the screen;
21390 BEGIN
21420 move_the_cursor_to(0,v);
21450 IF q_display_output THEN
21480 BEGIN
21510 IF line_erasable THEN
21540 BEGIN outstring(terminalout,eraseeol);
21570 END ELSE
21600 BEGIN INTEGER blank_field;
21630 blank_field:= screen(v).strip.length+1;
21660 outchr(terminalout,' ',blank_field);
21690 IF allow_cr THEN outchr(terminalout,carriagereturn,1)
21720 ELSE synchronize(0,v);
21750 END;
21780 END;
21810 screen(v):= NOTEXT;
21840 END;
21870 COMMENT%IFEND MVISTA;
21900 PROCEDURE outimage;
21930 COMMENT: Will output any characters in the terminalout.image
21960 buffer and will then move the cursor to the beginning of the
21990 next line on the screen;
22020 INSPECT terminalout DO
22050 BEGIN
22080 CHARACTER lastout;
22110 IF q_display_output THEN
22140 BEGIN
22170 IF allow_cr AND terminaltype NE tandberg THEN
22200 BEGIN outchr(terminalout,carriagereturn,1);
22230 outchr(terminalout,linefeed,1);
22260 END ELSE
22290 BEGIN
22320 move_the_cursor_to(0,q_verticalpos+1);
22350 q_verticalpos:= q_verticalpos-1;
22380 END;
22410 END;
22440 IF allow_cr OR NOT q_display_output THEN
22470 q_verticalpos:= q_verticalpos+1;
22500 IF q_verticalpos >= height THEN q_verticalpos:=
22530 q_verticalpos-height;
22560 q_horizontalpos:= 0;
22590 forceout(terminalout);
22620 END;
22650 PROCEDURE outtext(tt); NAME tt; TEXT tt;
22680 COMMENT: Will output a text string onto the screen;
22710 BEGIN TEXT screenpart;
22740 ! screenpart is part of screen to which t is to be output;
22770 IF tt.length+q_horizontalpos <=width THEN
22800 BEGIN
22830 !z_t(6);
22860 screenpart:- screen[q_verticalpos].
22890 sub(q_horizontalpos+1,tt.length);
22920 screenpart:= tt;
22950 IF q_display_output THEN
22980 BEGIN
23010 outstring(terminalout,screenpart);
23040 END;
23070 q_horizontalpos:= q_horizontalpos+tt.length;
23100 COMMENT%IFNOT MVISTA;
23130 IF q_horizontalpos > widthm1 THEN
23160 move_the_cursor_to(0,q_verticalpos);
23190 COMMENT%IFEND MVISTA;
23220 !z_t(-6);
23250 END;
23280 END;
23310 PROCEDURE make_blank(size); INTEGER size;
23340 COMMENT will make part of the screen blank, beginning at the
23370 current cursor position, and continuing size characters;
23400 BEGIN
23430 TEXT notblankpart;
23460 notblankpart:- screen[q_verticalpos]
23490 .sub(q_horizontalpos+1,size).strip;
23520 notblankpart:= NOTEXT;
23550 IF q_display_output THEN
23580 BEGIN
23610 IF (IF line_erasable THEN
23640 size + q_horizontalpos >= width ELSE FALSE) THEN
23670 BEGIN IF terminaltype = i200 THEN
23700 BEGIN IF q_horizontalpos > 0 THEN GOTO blankit;
23730 END; ! since erase line blanks the whole line;
23760 outstring(terminalout,eraseeol);
23790 END ELSE blankit: outchr(terminalout,' ',notblankpart.length);
23820 END;
23850 q_horizontalpos:= q_horizontalpos+notblankpart.length;
23880 END;
23910 COMMENT%IFNOT MVISTA;
23940 PROCEDURE outfix(a,i,j); REAL a; INTEGER i, j;
23970 COMMENT similar to SIMULA outfix procedure;
24000 BEGIN
24030 TEXT t;
24060 t:- screen[q_verticalpos].sub(q_horizontalpos+1,j);
24090 t.putfix(a,i);
24120 IF q_display_output THEN
24150 outstring(terminalout,t);
24180 q_horizontalpos:= q_horizontalpos+j;
24210 IF q_horizontalpos > widthm1 THEN
24240 move_the_cursor_to(0,q_verticalpos);
24270 END;
24300 COMMENT%IFEND MVISTA;
24330 COMMENT%IFNOT MVISTA;
24360 PROCEDURE outreal(a,i,j); REAL a; INTEGER i, j;
24390 COMMENT similar to SIMULA outreal procedure;
24420 BEGIN
24450 TEXT t;
24480 t:- screen[q_verticalpos].sub(q_horizontalpos+1,j);
24510 t.putreal(a,i);
24540 IF q_display_output THEN
24570 outstring(terminalout,t);
24600 q_horizontalpos:= q_horizontalpos+j;
24630 IF q_horizontalpos > widthm1 THEN
24660 move_the_cursor_to(0,q_verticalpos);
24690 END;
24720 COMMENT%IFEND MVISTA;
24750 COMMENT%IFNOT MVISTA;
24780 PROCEDURE outfrac(a,i,j); INTEGER a, i, j;
24810 COMMENT similar to SIMULA outfrac procedure;
24840 BEGIN
24870 TEXT t;
24900 t:- screen[q_verticalpos].sub(q_horizontalpos+1,j);
24930 t.putfrac(a,i);
24960 IF q_display_output THEN
24990 outstring(terminalout,t);
25020 q_horizontalpos:= q_horizontalpos+j;
25050 IF q_horizontalpos > widthm1 THEN
25080 move_the_cursor_to(0,q_verticalpos);
25110 END;
25140 COMMENT%IFEND MVISTA;
25170 COMMENT%IFNOT MVISTA;
25200 PROCEDURE outint(i,j); INTEGER i, j;
25230 COMMENT similar to SIMULA outint procedure;
25260 BEGIN
25290 TEXT t;
25320 t:- screen[q_verticalpos].sub(q_horizontalpos+1,j);
25350 t.putint(i);
25380 IF q_display_output THEN
25410 outstring(terminalout,t);
25440 q_horizontalpos:= q_horizontalpos+j;
25470 IF q_horizontalpos > widthm1 THEN
25500 move_the_cursor_to(0,q_verticalpos);
25530 END;
25560 COMMENT%IFEND MVISTA;
25590 COMMENT%IFNOT MVISTA;
25620 PROCEDURE restore_one_char(horiz,vertic);
25650 COMMENT: Will restore the character in the position (horiz,
25680 vertic) to what the program believes is in that position on
25710 the screen;
25740 INTEGER horiz, vertic;
25770 IF horiz >= 0 AND horiz < width AND vertic >= 0 AND
25800 vertic < height AND q_display_output THEN
25830 set_char_on_screen(get_char_from_screen(horiz,vertic),
25860 horiz,vertic);
25890 COMMENT%IFEND MVISTA;
25920 COMMENT%IF mvista
25950 COMMENT%IFNOT CALLMAC
25980 CLASS q_insingle
26010 COMMENT%IFNOT mvista;
26040 PROCEDURE p_q_insingle
26070 (echo)
26100 COMMENT%IFEND MVISTA;
26130 ;
26160 COMMENT: Will input one character from the terminal without
26190 waiting for a carriage return. Can also input "left"=^Z,
26220 which cannot be input with inimage;
26250 COMMENT%IFNOT MVISTA;
26280 BOOLEAN echo;
26310 COMMENT%IFEND MVISTA;
26340 BEGIN
26370 COMMENT%IF MVISTA
26400 loop: detach;
26430 COMMENT%IFNOT MVISTA;
26460 IF NOT q_display_output THEN
26490 abort("VISTA input without picture showing");
26520 COMMENT%IFNOT MVISTA;
26550 q_gotchar:= insinglechar(terminalin);
26580 COMMENT%IF MVISTA
26610 q_gotchar:= getch;
26640 COMMENT%IFEND MVISTA;
26670 IF q_gotchar = fill THEN
26700 BEGIN
26730 IF q_horizontalpos > 0 THEN
26760 BEGIN
26790 COMMENT%IF MVISTA
26820 IF addaltmode and NOT leftsingle THEN
26850 outchr(terminalout,altmode,1);
26880 COMMENT%IF MVISTA
26910 outchr(terminalout,left,1);
26940 COMMENT%IF MVISTA
26970 outchr(terminalout,' ',1);
27000 COMMENT%IF MVISTA
27030 IF addaltmode and NOT leftsingle THEN
27060 outchr(terminalout,altmode,1);
27090 COMMENT%IF MVISTA
27120 outchr(terminalout,left,1);
27150 COMMENT%IF MVISTA
27180 depchar(screen[q_verticalpos],q_horizontalpos,' ');
27210 COMMENT%IF MVISTA
27240 q_horizontalpos:= q_horizontalpos-1;
27270 COMMENT%IFNOT MVISTA;
27300 set_char_on_screen(' ',q_horizontalpos-1,q_verticalpos);
27330 COMMENT%IFEND MVISTA;
27360 END;
27390 END;
27420 IF
27450 COMMENT%IFNOT MVISTA;
27480 echo AND
27510 COMMENT%IFEND MVISTA;
27540 NOT q_echoenabled THEN
27570 BEGIN IF q_gotchar = tab THEN q_gotchar:= ' ';
27600 IF terminaltype NE tandberg THEN
27630 outchr(terminalout,q_gotchar,1) ELSE
27660 outchr(terminalout,
27690 IF q_gotchar = linefeed AND q_horizontalpos < heightm1 THEN
27720 down ELSE q_gotchar,1);
27750 END;
27780 COMMENT%IF MVISTA
27810 GOTO loop;
27840 COMMENT%IFEND MVISTA;
27870 END;
27900 COMMENT%IFNOT MVISTA;
27930 CHARACTER PROCEDURE insingle(echo);
27960 BOOLEAN echo;
27990 COMMENT%IFEND MVISTA;
28020 COMMENT%IF MVISTA
28050 CLASS insingle;
28080 COMMENT%IFEND MVISTA;
28110 BEGIN
28140 COMMENT%IF MVISTA
28170 mainloop: detach;
28200 COMMENT%IFEND MVISTA;
28230 !z_t(7);forceout(terminalout);
28260 COMMENT%IF MVISTA
28290 call(p_q_insingle);
28320 COMMENT%IFNOT MVISTA;
28350 p_q_insingle(echo);
28380 COMMENT%IFEND MVISTA;
28410 controlchar:= IF q_gotchar < ' ' THEN TRUE ELSE
28440 IF q_gotchar = fill THEN TRUE ELSE FALSE;
28470 COMMENT%IFNOT MVISTA;
28500 IF terminaltype = infoton THEN
28530 BEGIN
28560 IF controlchar THEN
28590 BEGIN IF q_gotchar = startblink OR q_gotchar = stopblink
28620 THEN controlchar:= FALSE;
28650 END;
28680 END;
28710 COMMENT%IFEND MVISTA;
28740 IF addaltmode THEN
28770 BEGIN IF q_gotchar = altmode THEN
28800 COMMENT%IF mvista
28830 call(p_q_insingle);
28860 COMMENT%IFNOT mvista;
28890 p_q_insingle(echo);
28920 COMMENT%IFEND MVISTA;
28950 END;
28980 COMMENT%IFNOT MVISTA;
29010 IF controlchar AND
29040 q_gotchar = restorechar OR q_gotchar = erasescreen THEN
29070 restore_the_whole_screen;
29100 insingle:= q_gotchar;
29130 COMMENT%IFEND MVISTA;
29160 COMMENT%IFNOT MVISTA;
29190 IF echo THEN
29220 COMMENT%IFEND MVISTA;
29250 BEGIN
29280 IF NOT controlchar THEN
29310 BEGIN COMMENT to be stored in screen;
29340 depchar(screen[q_verticalpos],q_horizontalpos+1,
29370 q_gotchar);
29400 q_horizontalpos:= q_horizontalpos+1;
29430 IF q_horizontalpos >= width THEN
29460 BEGIN ! wrap cursor around at screen borders;
29490 IF q_verticalpos < heightm1 THEN
29520 synchronize(0,q_verticalpos+1) ELSE
29550 COMMENT%IFNOT MVISTA;
29580 IF scrollallow THEN
29610 COMMENT%IFEND MVISTA;
29640 BEGIN outchr(terminalout,linefeed,1);
29670 synchronize(0,heightm1); badscreen:= TRUE;
29700 COMMENT unwanted scrolling of screen has occured;
29730 END
29760 COMMENT%IFNOT MVISTA
29790 ELSE synchronize(widthm1,heightm1);
29820 COMMENT%IFEND MVISTA;
29850 END;
29880 END ELSE
29910 BEGIN COMMENT not to be stored on the screen;
29940 COMMENT not printable AND echo;
29970 unknownchar:= FALSE;
30000 IF q_gotchar = linefeed THEN
30030 BEGIN
30060 IF q_verticalpos < heightm1 THEN
30090 BEGIN IF allow_cr THEN
30120 BEGIN q_verticalpos:= q_verticalpos+1;
30150 IF q_echoenabled THEN
30180 BEGIN
30210 IF terminaltype = tandberg THEN
30240 BEGIN
30270 screen(q_verticalpos).sub(q_horizontalpos+1,
30300 width-q_horizontalpos):= NOTEXT;
30330 END;
30360 END;
30390 END ELSE
30420 synchronize(q_horizontalpos,q_verticalpos+1);
30450 END
30480 COMMENT%IFNOT MVISTA
30510 ELSE
30540 BEGIN
30570 IF NOT scrollallow THEN restore_the_whole_screen;
30600 END;
30630 COMMENT%IFEND MVISTA;
30660 END ELSE
30690 IF q_gotchar = carriagereturn THEN
30720 q_horizontalpos:= 0 ELSE
30750 IF q_gotchar = up THEN
30780 BEGIN IF q_verticalpos = 0 THEN
30810 synchronize(q_horizontalpos,heightm1)
30840 ELSE
30870 BEGIN
30900 IF terminaltype = tandberg THEN
30930 BEGIN IF q_verticalpos = heightm1 THEN synka:= TRUE;
30960 END;
30990 q_verticalpos:= q_verticalpos-1;
31020 END;
31050 END ELSE
31080 IF q_gotchar = down THEN
31110 BEGIN IF q_verticalpos >= heightm1 THEN
31140 synchronize(q_horizontalpos,0) ELSE
31170 q_verticalpos:= q_verticalpos+1;
31200 END ELSE
31230 IF q_gotchar = left THEN
31260 BEGIN IF q_horizontalpos = 0 THEN
31290 synchronize(widthm1,q_verticalpos) ELSE
31320 q_horizontalpos:= q_horizontalpos-1;
31350 END ELSE
31380 IF q_gotchar = right THEN
31410 BEGIN IF q_horizontalpos >= widthm1 THEN
31440 synchronize(0,q_verticalpos) ELSE
31470 q_horizontalpos:= q_horizontalpos+1;
31500 END ELSE
31530 IF q_gotchar = home THEN
31560 BEGIN q_horizontalpos:= 0;
31590 IF terminaltype = cdc71310s THEN q_verticalpos:= heightm1
31620 ELSE q_verticalpos:= 0;
31650 END ELSE
31680 IF q_gotchar = eraseline THEN
31710 BEGIN
31740 IF line_erasable THEN screen[q_verticalpos].
31770 sub(q_horizontalpos+1, width-q_horizontalpos):= NOTEXT;
31800 END ELSE unknownchar:= TRUE;
31830 IF synka THEN
31860 BEGIN IF (IF q_echoenabled THEN NOT trmop(8R0001,terminalout,1)
31890 = 1 !=type ahead from the terminal has occured;
31920 ELSE TRUE) THEN
31950 BEGIN synka:= FALSE;
31980 IF q_echoenabled THEN
32010 synchronize(q_horizontalpos, q_verticalpos) ELSE
32040 restore_the_whole_screen;
32070 END;
32100 END;
32130 END not printable, but echo;;
32160 END;
32190 !z_t(-7);
32220 COMMENT%IF MVISTA
32250 GOTO mainloop;
32280 COMMENT%IFEND MVISTA;
32310 END;
32340 COMMENT%IFNOT MVISTA;
32370 PROCEDURE inimage;
32400 COMMENT: Will input a line of text from the terminal into
32430 the buffer terminalin.image;
32460 BEGIN
32490 TEXT stripimage; CHARACTER c;
32520 IF NOT q_display_output THEN
32550 abort("VISTA input without picture showing");
32580 readagain: forceout(terminalout);
32610 BEGIN
32640 terminalin.image:= NOTEXT; terminalin.image.setpos(1);
32670 loop: c:= insingle(TRUE);
32700 IF c EQ carriagereturn OR c EQ null THEN GOTO
32730 loop;
32760 IF c EQ linefeed THEN GOTO out;
32790 IF c = fill THEN
32820 BEGIN
32850 IF terminalin.pos > 1 THEN
32880 BEGIN
32910 terminalin.setpos(terminalin.pos-1);
32940 depchar(terminalin.image,terminalin.pos,' ');
32970 END;
33000 GOTO loop;
33030 END;
33060 terminalin.image.putchar(c);
33090 IF c EQ altmode OR c EQ formfeed OR c EQ verttab
33120 THEN GOTO out;
33150 GOTO loop;
33180 out: terminalin.image.setpos(1);
33210 END;
33240 IF terminalin.endfile THEN
33270 BEGIN
33300 terminalin.close; terminalin:- NEW infile("*");
33330 terminalin.open(copy(leftimage));
33360 END;
33390 END;
33420 COMMENT%IFEND MVISTA;
33450 COMMENT%IFNOT MVISTA;
33480 INTEGER PROCEDURE inint;
33510 COMMENT: Will search for and read an integer from the terminal;
33540 BEGIN
33570 INTEGER vold, hold;
33600 IF NOT q_display_output THEN
33630 abort("VISTA input without picture showing");
33660 forceout(terminalout);
33690 vold:= q_verticalpos; hold:= q_horizontalpos; inimage;
33720 WHILE checkint(terminalin.image) <= 0 DO
33750 BEGIN
33780 move_the_cursor_to(terminalin.image.strip.length+hold,
33810 vold);
33840 WHILE q_horizontalpos > hold DO
33870 BEGIN
33900 set_char_on_screen('?',q_horizontalpos-1,vold);
33930 END;
33960 move_the_cursor_to(hold,vold);
33990 inimage;
34020 END;
34050 inint:= terminalin.image.getint;
34080 synchronize(q_horizontalpos, q_verticalpos);
34110 END of inint;
34140 COMMENT%IFEND MVISTA;
34170 COMMENT%IFNOT MVISTA;
34200 REAL PROCEDURE inreal;
34230 COMMENT: Will search for and read an real from the terminal;
34260 BEGIN
34290 INTEGER vold, hold;
34320 IF NOT q_display_output THEN
34350 abort("VISTA input without picture showing");
34380 forceout(terminalout);
34410 vold:= q_verticalpos; hold:= q_horizontalpos; inimage;
34440 WHILE checkreal(terminalin.image) <= 0 DO
34470 BEGIN
34500 move_the_cursor_to(terminalin.image.strip.length+hold,
34530 vold);
34560 WHILE q_horizontalpos > hold DO
34590 BEGIN
34620 set_char_on_screen('?',q_horizontalpos-1,vold);
34650 END;
34680 move_the_cursor_to(hold,vold);
34710 inimage;
34740 END;
34770 inreal:= terminalin.image.getreal;
34800 synchronize(q_horizontalpos, q_verticalpos);
34830 END of inreal;
34860 COMMENT%IFEND MVISTA;
34890 COMMENT%IFNOT MVISTA;
34920 TEXT PROCEDURE inword;
34950 COMMENT: Will search for and read a word from the terminal.
34980 A word is any seqeuence of non-blank characters;
35010 BEGIN
35040 INTEGER vold;
35070 IF NOT q_display_output THEN
35100 abort("VISTA input without picture showing");
35130 forceout(terminalout);
35160 vold:= q_verticalpos;
35190 WHILE
35220 terminalin.image.sub(terminalin.pos,
35250 terminalin.length-terminalin.pos+1).strip.length = 0 DO
35280 BEGIN
35310 inimage; move_the_cursor_to(0,vold);
35340 END;
35370 WHILE terminalin.image.getchar NE ' ' AND
35400 terminalin.image.more
35430 DO;
35460 inword:-
35490 copy(terminalin.image.sub(1,terminalin.image.pos-2));
35520 synchronize(q_horizontalpos, q_verticalpos);
35550 END;
35580 COMMENT%IFEND MVISTA;
35610 COMMENT%IFNOT MVISTA;
35640 BOOLEAN PROCEDURE inyes;
35670 COMMENT: Will search for either "yes" or "no" in input from
35700 the terminal and return TRUE if "yes" is found, FALSE if
35730 "no" is found;
35760 BEGIN
35790 TEXT answer; CHARACTER c; INTEGER vold;
35820 IF NOT q_display_output THEN
35850 abort("VISTA input without picture showing");
35880 forceout(terminalout);
35910 vold:= q_verticalpos-1;
35940 tryagain:
35970 inimage; answer:- terminalin.image.strip;
36000 WHILE TRUE DO
36030 BEGIN
36060 c:= IF answer.more THEN answer.getchar ELSE
36090 char(0);
36120 IF c \= ' ' THEN
36150 BEGIN
36180 IF c = 'y' OR c = 'Y' THEN inyes:= TRUE ELSE
36210 IF c = 'n' OR c = 'N' THEN inyes:= FALSE ELSE
36240 BEGIN
36270 synchronize(0,vold);
36300 outtext(
36330 "You answered neither yes nor NO. Try again."
36360 );
36390 outimage;
36420 GOTO tryagain;
36450 END;
36480 GOTO out;
36510 END;
36540 END;
36570 out: terminalin.setpos(terminalin.length+1);
36600 synchronize(q_horizontalpos,q_verticalpos);
36630 END;
36660 COMMENT%IFEND MVISTA;
36690 COMMENT%IFNOT CALLMAC;
36720 PROCEDURE local_home_the_cursor;
36750 COMMENT: Will move the cursor to the position (0,0),
36780 the upper left corner of the screen, on CDC 71310 to
36810 the lower left corner;
36840 BEGIN
36870 IF q_display_output THEN
36900 BEGIN
36930 IF addaltmode AND NOT homesingle THEN
36960 outchr(terminalout,altmode,1);
36990 outchr(terminalout,home,1);
37020 END;
37050 q_verticalpos:= q_horizontalpos:= 0;
37080 IF terminaltype = cdc71310s THEN q_verticalpos:= heightm1;
37110 END;
37140 COMMENT%IFEND CALLMAC;
37170 PROCEDURE home_the_cursor;
37200 COMMENT: Will move the cursor to the position (0,0),
37230 the upper left corner of the screen;
37260 BEGIN
37290 IF q_display_output THEN
37320 BEGIN
37350 IF addaltmode AND NOT homesingle THEN
37380 outchr(terminalout,altmode,1) ELSE
37410 outchr(terminalout,home,1);
37440 outchr(terminalout,home,1);
37470 IF terminaltype = cdc71310s THEN outchr(terminalout,up,heightm1);
37500 END;
37530 q_verticalpos:= q_horizontalpos:= 0;
37560 END;
37590 PROCEDURE blank_the_screen;
37620 COMMENT: Will make the whole screen blank.;
37650 BEGIN
37680 INTEGER h, v;
37710 FOR v:= 0 STEP 1 UNTIL heightm1 DO
37740 screen[v]:= NOTEXT;
37770 IF q_display_output THEN
37800 BEGIN
37830 home_the_cursor;
37860 IF addaltmode AND NOT clearsingle
37890 THEN outchr(terminalout,altmode,1);
37920 outchr(terminalout,erasescreen,1); outchr(terminalout,delayer,10);
37950 home_the_cursor;
37980 echo(terminalin,IF q_echoenabled THEN 4 ELSE 2);
38010 END;
38040 END;
38070 COMMENT Execution of the CLASS VISTA starts here with initialization
38100 of local variables;
38130 COMMENT%IF mvista
38160 COMMENT%IFNOT callmac
38190 p_q_insingle:- NEW q_insingle;
38220 COMMENT%IF mvista
38250 p_insingle:- NEW insingle;
38280 COMMENT%IFNOT mvista;
38310 COMMENT%IFEND callmac;
38340 terminaloutimage:- terminalout.image;
38370 COMMENT%IFEND mvista;
38400 trmop(8r2017,terminalout,0); !.TTY FILL 0, please monitor no fill
38430 chars;
38460 allow_cr:= TRUE; infoton:= 1; vt52:= 2;
38490 minitec:= 3; elite:= 4; kthelite:= 5;
38520 newelite:= 6; newkthelite:= 7; teletec:= 8;
38550 sattelite:= 9; tandberg:= 10; beehive:= 11; cdc71310s:= 12;
38580 cdc71310p:= 13; elite3025:= 14; elite1521:= 15;
38610 volkerd404:= 16; volker414h:= 17; buginfoton:= 18;
38640 i200:= 19; adm3a:= 20; vt100:= 21;
38670
38700 cpunumber:= gettab(8r11,8r20); ! Get CPU number from monitor tables;
38730 IF cpunumber = 1215 !QZ computer centre in Stockholm; THEN
38760 BEGIN
38790 ttyqz:= trmop(8r1777,terminalout,1) = 1 !.TTY QZ = TRUE;;
38820 ttyzq:= trmop(8r1776,terminalout,1) = 1 !.TTY ZQ = TRUE;;
38850 END;
38880 IF trmspeed <= 0 THEN
38910 BEGIN
38940 trmspeed:= trmop(8r1031,terminalout,0);
38970 trmspeed:= IF trmspeed = 1 THEN 50 ELSE IF trmspeed = 2 THEN
39000 75 ELSE IF trmspeed = 3 THEN 110 ELSE IF trmspeed = 4 THEN 135
39030 ELSE IF trmspeed = 5 THEN 150 ELSE IF trmspeed = 6 THEN 200
39060 ELSE IF trmspeed = 7 THEN 300 ELSE IF trmspeed = 8 THEN 600
39090 ELSE IF trmspeed = 9 THEN 1200
39120 ELSE IF trmspeed = 10 THEN 1800 ELSE IF trmspeed = 11 THEN 2400
39150 ELSE IF trmspeed = 12 THEN 4800 ELSE IF trmspeed = 13 THEN 9600
39180 ELSE 2400;
39210 END;
39240
39270 lineinsfillers:= trmspeed*trmspeed*0.0000011464+trmspeed*0.0040327
39300 -2.548; IF lineinsfillers < 0 THEN lineinsfillers:= 0;
39330
39360 ioindex:= iondx(terminalout);
39390 IF terminalout.image.length < width THEN terminalout.image:-
39420 blanks(width);
39450 IF terminalin.image.length < width THEN terminalin.image:-
39480 blanks(width);
39510 restorechar:= altmode:= char(27); linefeed:= char(10);
39540 bell:= char(7); verttab:= char(11); null:= char(0);
39570 delayer:=
39600 fill:= char(127); tab:= char(9); carriagereturn:= char(13);
39630 formfeed:= char(12); ttyform:= -1;
39660 COMMENT%IF MACRO
39690 IF2,< PURGE C$,A$B,A$C,R$B,R$C,T$B,T$C
39720 PURGE WRD,WORD,INTEGER,ARRAY
39750 PURGE REF,BOOLEAN,INTEGER
39780 >
39810 RADIX 10
39840 qbel==7
39870 qvt==11
39900 qnul==0
39930 qdel==127
39960 qtab==9
39990 qht==9
40020 qcr==13
40050 qlf==10
40080 qesc=27
40110 qff==12
40140 RADIX 8
40170 COMMENT%IFNOT MACRO;
40200 INSPECT terminalout DO INSPECT terminalin DO
40230 BEGIN CHARACTER c; TEXT typec; BOOLEAN tmpfound;
40260 IF FALSE THEN bad:
40290 BEGIN
40320 outtext("I cannot cope with your terminal specification."
40350 ); outimage; terminaltype:= 0;
40380 END;
40410 COMMENT%IFNOT MVISTA;
40440 IF terminaltype = 0 THEN
40470 asktype:
40500 INSPECT NEW termty DO
40530 BEGIN
40560 otherdisplay:= termtype;
40590 IF extraterminal =/= NOTEXT THEN
40620 BEGIN termtype:= termtype+1;
40650 tr[termtype]:- storbokstav(extraterminal);
40680 END;
40710 maxterminals:= termtype+1;
40740 IF terminalin == sysin THEN
40770 typec:- tmpin("TRM",FALSE); ! TMP:TRM may give terminal type;
40800 IF typec =/= NOTEXT THEN
40830 BEGIN typec:- scanto(typec,carriagereturn);
40860 tmpfound:= TRUE;
40890 END ELSE
40920 BEGIN
40950 ! Ask the terminal user about terminal type;
40980 again: outchr(terminalout,formfeed,1); outimage; outimage;
41010 asktype2:
41040 type_menu(terminalout); IF extraterminal =/= NOTEXT THEN
41070 BEGIN outtext(extraterminal); outtext(", ");
41100 END;
41130 outtext("(Other) display."); outimage; outtext(
41160 "Switches: /DCA or /-DCA = Direct Cursor Adressing,"
41190 "/ALF or /-ALF = Auto LF"); outimage;
41220 inloop:
41250 outchr(terminalout,'*',1); forceout(terminalout);
41280 inimage; typec:- terminalin.image.strip;
41310 IF typec == NOTEXT THEN GOTO inloop;
41340 END;
41370 typec:- storbokstav(typec);
41400 IF NOT tmpfound AND terminalout == sysout THEN
41430 tmpout("TRM",typec);
41460 ts:- scanto(typec,'/');
41490 IF NOT meny(ts,terminaltype,tr,maxterminals-1) THEN
41520 BEGIN outtext(IF terminaltype = -1 THEN
41550 "Your answer was ambiguous!" ELSE
41580 "The computer did not understand!"); outimage;
41610 GOTO asktype2;
41640 END;
41670 terminalin.setpos(0);
41700 END of asktype;
41730 COMMENT%IFEND MVISTA;
41760 zeroterminal: IF terminaltype = 0 OR
41790 terminaltype = otherdisplay THEN
41820 BEGIN
41850 terminaltype:= otherdisplay;
41880 outtext(
41910 "Push the following keys in sequence on your terminal:"
41940 ); outimage;
41970 outtext(
42000 "Cursor down, cursor up, cursor right, cursor left,");
42030 outimage;
42060 outtext("cursor home, erase screen, carriage return.");
42090 outimage;
42120 extraparameters:- blanks(20);
42150 loop:
42180 COMMENT%IF MVISTA
42210 c:= getch;
42240 COMMENT%IFNOT MVISTA;
42270 c:= insinglechar(terminalin);
42300 COMMENT%IFEND MVISTA;
42330 IF c NE carriagereturn THEN
42360 BEGIN extraparameters.putchar(c); GOTO loop;
42390 END;
42420 extraparameters:-
42450 extraparameters.sub(1,extraparameters.pos-1);
42480 COMMENT%IF MVISTA
42510 c:= getch;
42540 COMMENT%IFNOT MVISTA;
42570 c:= insinglechar(terminalin);
42600 COMMENT%IFEND MVISTA;
42630 IF extraparameters = NOTEXT THEN GOTO bad;
42660 terminaltype:= maxterminals-1;
42690 END;
42720 IF terminaltype = maxterminals-1
42750 AND extraparameters =/= NOTEXT THEN
42780 BEGIN
42810 CHARACTER PROCEDURE find(single);
42840 NAME single; BOOLEAN single;
42870 BEGIN IF NOT extraparameters.more THEN GOTO bad;
42900 c:= extraparameters.getchar;
42930 IF c = altmode THEN
42960 BEGIN addaltmode:= TRUE;
42990 IF NOT extraparameters.more THEN GOTO bad;
43020 c:= extraparameters.getchar;
43050 END ELSE single:= TRUE;
43080 find:= c;
43110 END;
43140 extraparameters.setpos(1);
43170 down:= find(downsingle); up:= find(upsingle); right:=
43200 find(rightsingle); left:= find(leftsingle); home:=
43230 find(homesingle); erasescreen:= find(clearsingle);
43260 END ELSE
43290 IF terminaltype = infoton OR terminaltype = sattelite
43320 OR terminaltype = buginfoton THEN
43350 BEGIN COMMENT Infoton Vista Standard or VISTAR Sattelite;
43380 IF terminaltype EQ buginfoton THEN
43410 terminaltype:= infoton ELSE
43440 BEGIN line_erasable:= TRUE; eraseline:= char(11);
43470 END;
43500 IF terminaltype = infoton THEN
43530 BEGIN
43560 startblink:= char(31); stopblink:= char(15);
43590 END ELSE startblink:= stopblink:= ' ';
43620 up:= char(28); down:= char(29); right:= char(25);
43650 left:= char(26); home:= char(8); erasescreen:= char(12);
43680 END ELSE IF terminaltype = vt52 OR terminaltype = vt100 THEN
43710 BEGIN COMMENT VT52;
43740 IF terminaltypet= vt100 THEN
43770 BEGIN COMMENT set terminal to VT52 mode;
43800 outchr(terminalout,altmode,1);
43830 forceout(sysout); outche(ioindex,char(91));
43860 outchr(terminalout,'?',1);
43890 outchr(terminalout,'2',1);
43920 outchr(terminalout,'l',1);
43950 END;
43980 eraseline:= 'K'; address_screen:= 'Y';
44010 line_erasable:= direct_cursor_addressing:= addaltmode:= TRUE;
44040 up:= 'A'; down:= 'B'; right:= 'C'; left:= 'D';
44070 home:= 'H'; erasescreen:= 'J';
44100 END ELSE IF terminaltype = minitec OR terminaltype = teletec
44130 THEN
44160 BEGIN COMMENT minitec 2402 or teletec;
44190 IF terminaltype = minitec THEN
44220 BEGIN
44250 address_screen:= 'F';
44280 startblink:= char(16r42); stopblink:= char(16r53);
44310 erasescreen:= char(28);
44340 END ELSE erasescreen:= char(12);
44370 up:= char(11); down:= char(10); right:= char(31);
44400 left:= char(8); home:= char(30);
44430 END ELSE IF terminaltype = elite OR terminaltype = kthelite
44460 THEN
44490 BEGIN
44520 BEGIN
44550 COMMENT%IFNOT CALLMAC;
44580 elitecursors:- copy("`abcdefghijklmnop"
44610 "qrstuvwxyz{|}~5@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_ !""#"
44640 "$%&'()*+,-./");
44670 depchar(elitecursors,32,fill);
44700 COMMENT%IFEND CALLMAC;
44715 line_erasable:= TRUE; eraseline:= char(23);
44730 address_screen:= formfeed; direct_cursor_addressing:= TRUE;
44760 END;
44790 up:= char(26); down:= char(10);
44820 right:= char(28); left:= char(8);
44850 home:= char(2); erasescreen:= char(31);
44880 startblink:= char(14);
44910 stopblink:= ' '; !in reality = home;
44940 END ELSE IF terminaltype = newelite OR terminaltype =
44970 newkthelite OR terminaltype = elite1521 THEN
45000 BEGIN
45030 IF terminaltype = elite1521 THEN
45060 BEGIN lowintens:= char(4); highintens:= char(24);
45090 END;
45120 address_screen:= char(30); direct_cursor_addressing:= TRUE;
45150 up:= char(31); down:= char(10);
45180 right:= char(28); left:= char(8);
45210 home:= char(25); erasescreen:= char(12);
45240 startblink:= char(14);
45270 stopblink:= ' '; !in reality = home;
45300 line_erasable:= TRUE; eraseline:= char(29);
45330 END ELSE IF terminaltype = tandberg THEN
45360 BEGIN
45390 highintens:= char(15);
45420 lowintens:= char(14);
45450 COMMENT%IFNOT MVISTA;
45480 trmop(8R2005,terminalout,1);!.TTY TAB;
45510 COMMENT%IFEND MVISTA;
45540 tab:= char(30);
45570 up:= char(28); down:= char(11); left:= char(8);
45600 right:= char(9);
45630 home:= char(29); erasescreen:= char(25);
45660 END ELSE IF terminaltype = beehive THEN
45690 BEGIN
45720 addaltmode:= TRUE;
45750 up:= 'A'; down:= 'B'; left:= 'D'; right:= 'C';
45780 home:= 'H'; erasescreen:= 'E';
45810 startblink:= 'l'; stopblink:= 'm';
45840 address_screen:= 'F'; direct_cursor_addressing:= TRUE;
45870 END ELSE IF terminaltype = cdc71310s OR
45900 terminaltype = cdc71310p THEN
45930 BEGIN
45960 up:= char(26); down:= linefeed;
45990 left:= char(8); right:= char(21);
46020 startblink:= char(14); stopblink:= char(15);
46050 home:= char(25); ! lower left corner for cdc71310s;
46080 erasescreen:= char(24);
46110 delayer:= char(0);
46140 END ELSE IF terminaltype = elite3025 THEN
46170 BEGIN
46200 highintens:= char(48); lowintens:= char(49);
46230 startblink:= char(16r34); stopblink:= char(16r30);
46260 line_erasable:= TRUE;
46290 addaltmode:= leftsingle:= downsingle:= TRUE;
46320 up:= 'A'; down:= linefeed; right:= 'C';
46350 left:= char(8); home:= 'H';
46380 erasescreen:= 'J'; eraseline:= 'K';
46410 deleteline:- maketext(fill,6+trmspeed*0.013);
46440 deleteline.putchar(altmode); deleteline.putchar('P');
46470 deleteline.putchar(altmode); deleteline.putchar(up);
46500 deleteline.putchar(altmode); deleteline.putchar('Q');
46530 insertline:- copy(deleteline); insertline.setpos(3);
46560 insertline.putchar(fill); insertline.putchar(down);
46590 deletechar:- copy(insertline.sub(1,6+trmspeed*0.0006));
46620 deletechar.setpos(4); deletechar.putchar(left);
46650 insertchar:- copy(deleteline.sub(1,deletechar.length));
46680 insertchar.setpos(4); insertchar.putchar(right);
46710 address_screen:= 'Y'; direct_cursor_addressing:= TRUE;
46740 END ELSE
46770 IF terminaltype = i200 THEN
46800 BEGIN
46830 home:= char(26); up:= char(28); down:= char(29);
46860 left:= char(8); right:= char(25);
46890 erasescreen:= formfeed;
46920 ! note eraseline always blanks the whole line;
46950 line_erasable:= TRUE; eraseline:= char(11);
46980 address_screen:= char(23); direct_cursor_addressing:= TRUE;
47010 END ELSE IF terminaltype = adm3a THEN
47040 BEGIN
47070 down:= char(10); up:= char(11); right:= char(12);
47100 left:= char(8); home:= char(30); erasescreen:= char(26);
47130 END ELSE
47160 IF terminaltype = volkerd404 THEN
47190 BEGIN
47220 home:= char(25); up:= char(26); down:= linefeed; left:= char(8);
47250 right:= char(21); eraseline:= char(22); erasescreen:= char(24);
47280 address_screen:= char(16);
47310 direct_cursor_addressing:= line_erasable := TRUE;
47340 END ELSE IF terminaltype = volker414h THEN
47370 BEGIN
47400 highintens:= char(31); lowintens:= char(25);
47430 up:= char(12); down:= char(11); left:= char(8); right:= char(16);
47460 eraseline:= char(15); erasescreen:= char(28);
47490 address_screen:= char(17); home:= char(18);
47520 direct_cursor_addressing:=
47550 line_erasable:= leftsingle:=
47580 rightsingle:= addaltmode:= TRUE;
47610 delline:= char(19); insline:= char(26);
47640 insertline:- maketext(fill,lineinsfillers+2);
47670 insertline.putchar(altmode); insertline.putchar(insline);
47700 deleteline:- copy(insertline);
47730 deleteline.setpos(2); deleteline.putchar(delline);
47760 delchar:= '3'; inschar:= ':';
47790 deletechar:- maketext(fill,lineinsfillers//2+2);
47820 deletechar.putchar(altmode); deletechar.putchar(delchar);
47850 insertchar:- copy(deletechar); insertchar.setpos(2);
47880 insertchar.putchar(inschar);
47910 END ELSE GOTO bad;
47940
47970 IF line_erasable THEN
48000 BEGIN
48030 eraseeol:- maketext(fill,2+lineinsfillers//28);
48060 IF addaltmode AND NOT linesingle THEN eraseeol.putchar(altmode);
48090 eraseeol.putchar(eraseline);
48120 END;
48150 COMMENT%IFNOT MVISTA;
48180 IF terminaltype < vt52
48210 OR terminaltype >= minitec AND terminaltype <= sattelite
48240 OR terminaltype = elite1521
48270 OR terminaltype >= volker414h
48300 THEN ttyform:= trmop(8r2006,terminalout,1); !.TTY FORM;
48330 COMMENT VIDED does this in the VIDED code;
48360
48390 IF NOT typec.more THEN ! no / in user given terminal type;
48420 BEGIN typec:- storbokstav(extraparameters);
48450 GOTO scanslash;
48480 END;
48510 WHILE typec.pos + 2 <= typec.length DO
48540 BEGIN leftimage:- typec.sub(typec.pos,3);
48570 IF leftimage = "DCA" THEN direct_cursor_addressing:= TRUE
48600 ELSE IF leftimage = "-DC" THEN direct_cursor_addressing:= FALSE
48630 ELSE IF leftimage = "ALF" THEN allow_cr:= FALSE
48660 ELSE IF leftimage = "-AL" THEN allow_cr:= TRUE;
48690 scanslash: scanto(typec,'/');
48720 END;
48750 COMMENT%IFEND MVISTA;
48780
48810 q_display_output:= TRUE;
48840 COMMENT%IFNOT MVISTA;
48870 echo(terminalin,IF q_echoenabled THEN 4 ELSE 2);
48900 COMMENT%IFEND MVISTA;
48930 leftimage:- blanks(terminalin.length);
48960 depchar(leftimage,1,left);
48990 terminalout.linesperpage(-1);
49020 trmop(8r2010,terminalout,1); ! .TTY NO CRLF;
49050 widthm1:= width-1; heightm1:= height-1;
49080 FOR q_verticalpos:= heightm1 STEP -1 UNTIL 0 DO
49110 screen[q_verticalpos]:- blanks(width);
49140 COMMENT%IFNOT MVISTA;
49170 normaltext;
49200 COMMENT%IFEND MVISTA;
49230 blank_the_screen;
49260 END;
49290 COMMENT%IF MVISTA
49320 END OF CLASS mvistax;
49350 COMMENT%IFEND MACRO;
49380 END;