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    Types: TextFile
    Names: »CONFIG.PAS«

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TextFile

PROGRAM CONFIG; (*$A+R-*)

(*  COMPAS V1.0 Reconfiguration Program		*)
(*  Copyright (C) 1982 by			*)
(*  Poly-Data microcenter ApS			*)

TYPE
  BYTE = 0..255;
  SECTOR = ARRAYÆ0..127Å OF BYTE;
  CPMFILE = FILE OF SECTOR;
  CHAR = STRINGÆ1Å;
  STR3 = STRINGÆ3Å;
  STR16 = STRINGÆ16Å;
  STR40 = STRINGÆ40Å;
VAR
  I: INTEGER;
  D,CH: CHAR;
  MODIFY,CHANGE: BOOLEAN;
  S1,S2: SECTOR;
  F: CPMFILE;

FUNCTION NUMSTR(B: BYTE): STR3;
VAR
  S: STR3;
BEGIN
  B:=B AND $7F; S:='';
  REPEAT
    S:=CHR(B MOD 10+48)+S; B:=B DIV 10;
  UNTIL B=0;
  NUMSTR:=S;
END;

FUNCTION CHRSTR(B: BYTE): STR16;
TYPE
  ASCIILIST = ARRAYÆ0..31Å OF STRINGÆ3Å;
CONST
  ASCII = ASCIILIST
    ('NUL','SOH','STX','ETX','EOT','ENQ','ACK','BEL','BS','HT',
    'LF','VT','FF','CR','SO','SI','DLE','DC1','DC2','DC3','DC4',
    'NAK','SYN','ETB','CAN','EM','SUB','ESC','FS','GS','RS','US');
VAR
  S: STR16;
BEGIN
  B:=B AND $7F;
  IF B<32 THEN CHRSTR:='CTRL/'+CHR(B+64)+' ('+ASCIIÆBÅ+')' ELSE
  IF B<127 THEN CHRSTR:='"'+CHR(B)+'"' ELSE
  CHRSTR:='RUBOUT (DEL)';
END;

FUNCTION ONOFF(B: BYTE): STR3;
BEGIN
  IF B>=$80 THEN ONOFF:='ON' ELSE ONOFF:='OFF';
END;

FUNCTION XYORD(B: BYTE): STR3;
BEGIN
  IF B>=$80 THEN XYORD:='XY' ELSE XYORD:='YX';
END;

PROCEDURE BACKSPACE(N: INTEGER);
VAR
  I: INTEGER;
BEGIN
  FOR I:=1 TO N DO WRITE(CHR(8),' ',CHR(8));
END;

PROCEDURE LINE(PROMPT,VALUE: STR40);
CONST
  DOTS = '................................';
VAR
  CH: CHAR;
BEGIN
  WRITE(PROMPT,DOTSÆ1..36-LEN(PROMPT)Å,': ',VALUE);
  IF MODIFY THEN
  BEGIN
    WRITE('Change (Y/N)? ':32-LEN(VALUE));
    REPEAT GET(CH) UNTIL (CH='Y') OR (CH='N');
    IF CH='Y' THEN BACKSPACE(32) ELSE BACKSPACE(14);
    CHANGE:=CH='Y';
  END ELSE CHANGE:=FALSE;
  IF NOT CHANGE THEN WRITELN;
END;

PROCEDURE INPNUM(VAR B: BYTE; MIN,MAX,M: INTEGER);
VAR
  N,P: INTEGER;
  OK: BOOLEAN;
  S: STR3;
BEGIN
  IF CHANGE THEN
  BEGIN
    REPEAT
      REPEAT
	BUFLEN:=3; READ(S);
      UNTIL S<>'';
      P:=1; N:=0; OK:=TRUE;
      WHILE OK AND (P<=LEN(S)) DO
      BEGIN
	IF (SÆPÅ>='0') AND (SÆPÅ<='9') THEN
	N:=N*10+ORD(SÆPÅ)-48 ELSE
	OK:=FALSE;
	P:=SUCC(P);
      END;
      IF OK THEN OK:=(N>=MIN) AND (N<=MAX) AND (N MOD M=0);
      IF NOT OK THEN BACKSPACE(LEN(S));
    UNTIL OK;
    B:=B AND $80 OR N;
    WRITELN;
  END;
END;

PROCEDURE INPCHR(VAR B: BYTE);
VAR
  CH: CHAR;
BEGIN
  IF CHANGE THEN
  BEGIN
    GET(CH); B:=B AND $80 OR ORD(CH) AND $7F;
    WRITELN(CHRSTR(B));
  END;
END;

PROCEDURE RONOFF(VAR B: BYTE);
BEGIN
  IF CHANGE THEN
  BEGIN
    B:=B EXOR $80; WRITELN(ONOFF(B));
  END;
END;

PROCEDURE RXYORD(VAR B: BYTE);
BEGIN
  IF CHANGE THEN
  BEGIN
    B:=B EXOR $80; WRITELN(XYORD(B));
  END;
END;

PROCEDURE WAIT;
BEGIN
  WRITE('Press RETURN to continue...');
  REPEAT GET(CH) UNTIL ORD(CH)=13;
  BACKSPACE(27);
END;

PROCEDURE CRT;
VAR
  I,J: INTEGER;
  CH: CHAR;

PROCEDURE HELP;
BEGIN
  WRITELN;
  WRITELN('SCREEN WIDTH (IN CHARACTERS): This field defines the number');
  WRITELN('of characters per line of your CRT. It must be a multiple of');
  WRITELN('8 number between 8 and 120.');
  WRITELN;
  WRITELN('SCREEN HEIGHT (IN LINES): This field defines the number of');
  WRITELN('lines per display screen of your CRT.');
  WRITELN;
  WRITELN('LEAD-IN CHARACTER: Some CRTs require a two-character sequence');
  WRITELN('to exercise some of their functions. If the first character of');
  WRITELN('all these sequences is the same, it can be set as the value of');
  WRITELN('this field. The functions which require a lead-in must then');
  WRITELN('have the value ON in their corresponding lead-in on/off field.');
  WRITELN('Typically the lead-in character is CTRL/Æ (ESC).');
  WRITELN; WAIT;
  WRITELN('CLEAR TO END-OF-SCREEN CHARACTER: The character which erases');
  WRITELN('the screen from the current cursor position to the end of the');
  WRITELN('screen.');
  WRITELN;
  WRITELN('LEAD-IN AT CLEAR TO END-OF-SCREEN: ON if the above function re-');
  WRITELN('quires a lead-in character, OFF otherwise.');
  WRITELN;
  WRITELN('CLEAR TO END-OF-LINE CHARACTER: The character which erases all');
  WRITELN('characters from the current cursor position to the end of the');
  WRITELN('line the cursor is on.');
  WRITELN;
  WRITELN('LEAD-IN AT CLEAR TO END-OF-LINE: ON if the above function re-');
  WRITELN('quires a lead-in character, OFF otherwise.');
  WRITELN; WAIT;
  WRITELN('CURSOR ADDRESSING CHARACTER: The character which begins a random');
  WRITELN('cursor addressing sequence.');
  WRITELN;
  WRITELN('LEAD-IN AT CURSOR ADDRESSING: ON if the above function requires');
  WRITELN('a lead-in character, OFF otherwise.');
  WRITELN;
  WRITELN('COORDINATE OFFSET: The value to be added to each coordinate in');
  WRITELN('a random cursor addressing sequence. Typically this field is set');
  WRITELN('to 32 (an ASCII blank), meaning that the upper left corner is');
  WRITELN('addressed by transmitting (X,Y)=(32,32).');
  WRITELN;
  WRITELN('COORDINATE TRANSMIT ORDER: The order in which the coordinates are');
  WRITELN('transmitted in a random cursor addressing sequence. XY means X');
  WRITELN('before Y.');
  WRITELN; WAIT;
  WRITELN('To modify a numeric value, enter the new value and press RETURN.');
  WRITELN('To modify a character value, simply press the new character on');
  WRITELN('the keyboard. ON/OFF values and XY/YX values will automatically');
  WRITELN('revert to the opposite condition when changed.');
END;

BEGIN
  I:=0; FOR J:=$2A TO $2E DO I:=I OR S1ÆJÅ;
  IF I=0 THEN
  BEGIN
    WRITELN;
    WRITELN('You are running on a non-standard version of COMPAS, and thus');
    WRITELN('it is not possible to re-configure the CRT parameters. A copy');
    WRITELN('of the standard version may be obtained through your dealer.');
  END ELSE
  BEGIN
    MODIFY:=FALSE;
    WRITELN; WRITELN('Current settings of CRT parameters:');
    REPEAT
      WRITELN;
      LINE('Screen width (in characters)',NUMSTR(S1Æ$28Å));
      INPNUM(S1Æ$28Å,8,80,8);
      LINE('Screen height (in lines)',NUMSTR(S1Æ$29Å));
      INPNUM(S1Æ$29Å,1,50,1);
      LINE('Lead-in character',CHRSTR(S1Æ$2AÅ));
      INPCHR(S1Æ$2AÅ);
      LINE('Lead-in at clear to end-of-screen',ONOFF(S1Æ$2BÅ));
      RONOFF(S1Æ$2BÅ);
      LINE('Clear to end-of-screen character',CHRSTR(S1Æ$2BÅ));
      INPCHR(S1Æ$2BÅ);
      LINE('Lead-in at clear to end-of-line',ONOFF(S1Æ$2CÅ));
      RONOFF(S1Æ$2CÅ);
      LINE('Clear to end-of-line character',CHRSTR(S1Æ$2CÅ));
      INPCHR(S1Æ$2CÅ);
      LINE('Lead-in at cursor addressing',ONOFF(S1Æ$2DÅ));
      RONOFF(S1Æ$2DÅ);
      LINE('Cursor addressing character',CHRSTR(S1Æ$2DÅ));
      INPCHR(S1Æ$2DÅ);
      LINE('Coordinate offset',NUMSTR(S1Æ$2EÅ));
      INPNUM(S1Æ$2EÅ,0,127,1);
      LINE('Coordinate transmit order',XYORD(S1Æ$2EÅ));
      RXYORD(S1Æ$2EÅ);
      REPEAT
	WRITELN;
	WRITE('CRT parameters: C(hange, V(iew, H(elp, Q(uit: ');
	REPEAT GET(CH) UNTIL (CH='C') OR (CH='V') OR (CH='H') OR (CH='Q');
	WRITELN(CH);
	IF CH='H' THEN HELP;
      UNTIL CH<>'H';
      MODIFY:=CH='C';
    UNTIL CH='Q';
  END;
END;

PROCEDURE KEYBOARD;
TYPE
  KEYNAMELIST = ARRAYÆ$15..$27Å OF STRINGÆ7Å;
CONST
  KEYNAME = KEYNAMELIST
    ('MODE','TAB','BACKSP','RETURN','CLEAR','RIGHT','LEFT',
    'UP','DOWN','PREV','NEXT','BEGIN','END','FIND','CONT',
    'REPLACE','RFNEXT','COPY','QUIT');
VAR
  KEY: BYTE;
  CH: CHAR;

PROCEDURE HELP;
BEGIN
  WRITELN;
  WRITELN('For a detailled explanation of each of the editor functions,');
  WRITELN('please refer to the COMPAS Operating Manual, Section 3.');
  WRITELN;
  WRITELN('To change a character, simply type the new character on the');
  WRITELN('keyboard. Note that the seven first characters are used to');
  WRITELN('activate functions in both editor modes (move/edit). If one of');
  WRITELN('these fields is set to a printable character it will be impos-');
  WRITELN('sible to enter that character into the text using the edit mode.');
  WRITELN('Therefore, the first seven characters should always be control');
  WRITELN('characters (CTRL/A, CTRL/B, etc.) or special keys (RETURN, TAB,');
  WRITELN('BACKSPACE, etc.). The remaining characters may be both control');
  WRITELN('characters and/or printable characters.');
END;

BEGIN
  MODIFY:=FALSE;
  WRITELN; WRITELN('Current settings of keyboard parameters:');
  REPEAT
    WRITELN;
    FOR KEY:=$15 TO $27 DO
    BEGIN
      LINE('Key for <'+KEYNAMEÆKEYÅ+'>',CHRSTR(S2ÆKEYÅ));
      INPCHR(S2ÆKEYÅ);
    END;
    REPEAT
      WRITELN;
      WRITE('CRT parameters: C(hange, V(iew, H(elp, Q(uit: ');
      REPEAT GET(CH) UNTIL (CH='C') OR (CH='V') OR (CH='H') OR (CH='Q');
      WRITELN(CH);
      IF CH='H' THEN HELP;
    UNTIL CH<>'H';
    MODIFY:=CH='C';
  UNTIL CH='Q';
END;

PROCEDURE HELP;
BEGIN
  WRITELN;
  WRITELN('Press ''C'' to view/change the CRT parameters. These parameters');
  WRITELN('define the size of your screen (characters per line, lines per');
  WRITELN('screen), and the control character sequences used to exercise');
  WRITELN('some of its functions.');
  WRITELN;
  WRITELN('Press ''K'' to view/change the keyboard parameters. These para-');
  WRITELN('meters define the keystrokes used to command the editor.');
  WRITELN;
  WRITELN('Press ''Q'' to exit the CONFIG program. On exiting, you must spe-');
  WRITELN('cify whether or not you want the changes you have made to be');
  WRITELN('permanently recorded in the COMPAS.COM disk file.');
END;

BEGIN
  WRITELN; WRITELN; WRITELN;
  WRITELN('          COMPAS V1.0 Reconfiguration Program');
  WRITELN;
  WRITELN('                 Copyright (C) 1982 by');
  WRITELN('               Poly-Data microcenter ApS');
  WRITELN; WRITELN;
  WRITELN('This program is used to reconfigure COMPAS to operate with');
  WRITELN('other terminals than the one it was originally set up for.');
  WRITELN('Apart from actually modifying the tables contained in COMPAS,');
  WRITELN('this program also enables you to examine CRT and keyboard');
  WRITELN('interface parameters.');
  REPEAT
    WRITELN;
    WRITE('On which drive can the COMPAS.COM file be found (A-P)? ');
    REPEAT GET(D) UNTIL (D>='A') AND (D<='P');
    WRITELN(D,':');
    (*$I-*)
    RESET(F,D+':COMPAS.COM');
    (*$I+*)
    I:=IORES;
    IF I>0 THEN
    BEGIN
      WRITELN;
      WRITELN('Sorry, but drive ',D,': contains no COMPAS.COM file. Please');
      WRITELN('specify another drive, or insert the correct disk.');
      RESET;
    END;
  UNTIL I=0;
  SEEK(F,$00); GET(F,S1);
  SEEK(F,$2E); GET(F,S2);
  REPEAT
    WRITELN; WRITE('Select: C(RT, K(eyboard, H(elp, Q(uit: ');
    REPEAT GET(CH) UNTIL (CH='C') OR (CH='K') OR (CH='H') OR (CH='Q');
    WRITELN(CH);
    IF CH='C' THEN CRT ELSE
    IF CH='K' THEN KEYBOARD ELSE
    IF CH='H' THEN HELP;
  UNTIL CH='Q';
  WRITELN;
  WRITE('Update disk file (Y/N)? ');
  REPEAT GET(CH) UNTIL (CH='Y') OR (CH='N');
  WRITELN(CH);
  IF CH='Y' THEN
  BEGIN
    SEEK(F,$00); PUT(F,S1);
    SEEK(F,$2E); PUT(F,S2);
    CLOSE(F);
  END;
END.
«eof»