{
Here is a good ANSI unit I picked up over WWIVNET.... I've added it to a
simple modem program I was writing and it worked just fine. To get
it to work just send every charachter coming in through the procedure
Ice_Display_ANSI
Hope this is helpful..... Vince Weaver c/o MJWEAVER@UMD5.UMD.EDU
}
UNIT IceAnsi;
INTERFACE USES Crt;
(* If you use this code in your own programs, please give
proper credit to Alan Caruana/IceSoft Software *)
PROCEDURE Ice_Display_ANSI(ch:char);
{ Displays ch following ANSI graphics protocol}
IMPLEMENTATION VAR
ANSI_St :String ; {stores ANSI escape sequence if receiving ANSI}
ANSI_SCPL :INTEGER; {stores the saved cursor position line}
ANSI_SCPC :INTEGER; { " " " " " column}
ANSI_FG :INTEGER; {stores current foreground}
ANSI_BG :INTEGER; {stores current background}
ANSI_C,ANSI_I,ANSI_B,ANSI_R:BOOLEAN ; {stores current attribute options}
p,x,y : INTEGER;
PROCEDURE Ice_Display_ANSI(ch:char); {Displays ch following ANSI graphics protocal }
PROCEDURE TABULATE;
VAR x:INTEGER;
BEGIN
x:=WHEREX;
IF x<80 THEN
REPEAT
Inc(x);
UNTIL (x MOD 8)=0;
IF x=80 THEN x:=1;
GOTOXY(x,WHEREY);
IF x=1 THEN WRITELN;
END;
PROCEDURE BACKSPACE;
VAR x:INTEGER;
BEGIN
IF WHEREX>1 THEN
WRITE(^H,' ',^H)
ELSE
IF WHEREY>1 THEN BEGIN
GOTOXY(80,WHEREY-1);
WRITE(' ');
GOTOXY(80,WHEREY-1);
END;
END;
PROCEDURE TTY(ch:char);
VAR x:INTEGER;
BEGIN
IF ANSI_C THEN BEGIN
IF ANSI_I THEN ANSI_FG:=ANSI_FG OR 8;
IF ANSI_B THEN ANSI_FG:=ANSI_FG OR 16;
IF ANSI_R THEN BEGIN
x:=ANSI_FG;
ANSI_FG:=ANSI_BG;
ANSI_BG:=x;
END;
ANSI_C:=FALSE;
END;
TextColor(ANSI_FG);
TextBackground(ANSI_BG);
CASE Ch of
^G: BEGIN
Sound(2000);
Delay(75);
NoSound;
END;
^H: Backspace;
^I: Tabulate;
^J: BEGIN
TextBackground(0);
Write(^J);
END;
^K: GotoXY(1,1);
^L: BEGIN
TextBackground(0);
ClrScr;
END;
^M: BEGIN
TextBackground(0);
Write(^M);
END;
ELSE Write(Ch);
END;
END;
PROCEDURE ANSIWrite(S:String);
VAR x:INTEGER;
BEGIN
FOR x:=1 to Length(S) do
TTY(S[x]);
END;
FUNCTION Param:INTEGER; {returns -1 if no more parameters}
VAR S:String;
x,XX:INTEGER;
B:BOOLEAN;
BEGIN
B:=FALSE;
FOR x:=3 TO Length(ANSI_St) DO
IF ANSI_St[x] in ['0'..'9'] THEN B:=TRUE;
IF NOT B THEN
Param:=-1
ELSE BEGIN
S:='';
x:=3;
IF ANSI_St[3]=';' THEN BEGIN
Param:=0;
Delete(ANSI_St,3,1);
EXIT;
END;
REPEAT
S:=S+ANSI_St[x];
x:=x+1;
UNTIL (NOT (ANSI_St[x] IN ['0'..'9'])) or (Length(S)>2) or
(x>Length(ANSI_St));
IF Length(S)>2 THEN BEGIN
ANSIWrite(ANSI_St+Ch);
ANSI_St:='';
Param:=-1;
EXIT;
END;
Delete(ANSI_St,3,Length(S));
IF ANSI_St[3]=';' THEN Delete(ANSI_St,3,1);
Val(S,x,XX);
Param:=x;
END;
END;
BEGIN
IF (Ch<>#27) and (ANSI_St='') THEN BEGIN
TTY(Ch);
Exit;
END;
IF Ch=#27 THEN BEGIN
IF ANSI_St<>'' THEN BEGIN
ANSIWrite(ANSI_St+#27);
ANSI_St:='';
END ELSE ANSI_St:=#27;
EXIT;
END;
IF ANSI_St=#27 THEN BEGIN
IF Ch='[' THEN
ANSI_St:=#27+'['
ELSE BEGIN
ANSIWrite(ANSI_St+Ch);
ANSI_St:='';
END;
Exit;
END;
IF (Ch='[') and (ANSI_St<>'') THEN BEGIN
ANSIWrite(ANSI_St+'[');
ANSI_St:='';
EXIT;
END;
IF not (Ch in ['0'..'9',';','A'..'D','f','H','J','K','m','s','u']) THEN
BEGIN
ANSIWrite(ANSI_St+Ch);
ANSI_St:='';
EXIT;
END;
IF Ch in ['A'..'D','f','H','J','K','m','s','u'] THEN BEGIN
CASE Ch of
'A': BEGIN
p:=Param;
IF p=-1 THEN p:=1;
IF WhereY-p<1 THEN
GotoXY(Wherex,1)
ELSE GotoXY(WhereX,WhereY-p);
END;
'B': BEGIN
p:=Param;
IF p=-1 THEN p:=1;
IF WhereY+p>25 THEN
GotoXY(WhereX,25)
ELSE GotoXY(WhereX,WhereY+p);
END;
'C': BEGIN
p:=Param;
IF p=-1 THEN p:=1;
IF WhereX+p>80 THEN
GotoXY(80,WhereY)
ELSE GotoXY(WhereX+p,WhereY);
END;
'D': BEGIN
p:=Param;
IF p=-1 THEN p:=1;
IF WhereX-p<1 THEN
GotoXY(1,WhereY)
ELSE GotoXY(WhereX-p,WhereY);
END; 'H','f': BEGIN
Y:=Param;
x:=Param;
IF Y<1 THEN Y:=1;
IF x<1 THEN x:=1;
IF (x>80) or (x<1) or (Y>25) or (Y<1) THEN BEGIN
ANSI_St:='';
EXIT;
END;
GotoXY(x,Y);
END;
'J': BEGIN
p:=Param;
IF p=2 THEN BEGIN
TextBackground(0);
ClrScr;
END;
IF p=0 THEN BEGIN
x:=WhereX;
Y:=WhereY;
Window(1,y,80,25);
TextBackground(0);
ClrScr;
Window(1,1,80,25);
GotoXY(x,Y);
END;
IF p=1 THEN BEGIN
x:=WhereX;
Y:=WhereY;
Window(1,1,80,wherey);
TextBackground(0);
ClrScr;
Window(1,1,80,25);
GotoXY(x,Y);
END;
END;
'K': BEGIN
TextBackground(0);
ClrEol;
END;
'm': BEGIN
IF ANSI_St=#27+'[' THEN BEGIN
ANSI_FG:=7;
ANSI_BG:=0;
ANSI_I:=FALSE;
ANSI_B:=FALSE;
ANSI_R:=FALSE;
END;
REPEAT
p:=Param;
CASE p of
-1:;
0:BEGIN
ANSI_FG:=7;
ANSI_BG:=0;
ANSI_I:=FALSE;
ANSI_R:=FALSE;
ANSI_B:=FALSE;
END;
1:ANSI_I:=true;
5:ANSI_B:=true;
7:ANSI_R:=true;
30:ANSI_FG:=0;
31:ANSI_FG:=4;
32:ANSI_FG:=2;
33:ANSI_FG:=6;
34:ANSI_FG:=1;
35:ANSI_FG:=5;
36:ANSI_FG:=3;
37:ANSI_FG:=7;
40:ANSI_BG:=0;
41:ANSI_BG:=4;
42:ANSI_BG:=2;
43:ANSI_BG:=6;
44:ANSI_BG:=1;
45:ANSI_BG:=5;
46:ANSI_BG:=3;
47:ANSI_BG:=7;
END;
IF ((p>=30) and (p<=47)) or (p=1) or (p=5) or (p=7) THEN
ANSI_C:=true;
UNTIL p=-1;
END;
's': BEGIN
ANSI_SCPL:=WhereY;
ANSI_SCPC:=WhereX;
END;
'u': BEGIN
IF ANSI_SCPL>-1 THEN GotoXY(ANSI_SCPC,ANSI_SCPL);
ANSI_SCPL:=-1;
ANSI_SCPC:=-1;
END;
END;
ANSI_St:='';
EXIT;
END;
IF Ch in ['0'..'9',';'] THEN
ANSI_St:=ANSI_St+Ch;
IF Length(ANSI_St)>50 THEN BEGIN
ANSIWrite(ANSI_St);
ANSI_St:='';
EXIT;
END;
END;
BEGIN
ANSI_St:='';
ANSI_SCPL:=-1;
ANSI_SCPC:=-1;
ANSI_FG:=7;
ANSI_BG:=0;
ANSI_C:=FALSE;
ANSI_I:=FALSE;
ANSI_B:=FALSE;
ANSI_R:=FALSE;
END.
}
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