/
timejunk.pas
211 lines (187 loc) · 5.56 KB
/
timejunk.pas
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{$A+,B+,D-,E+,F+,I+,L+,N-,O+,R-,S+,V-}
unit timejunk;
interface
{rcg11172000 no overlay under Linux.}
{uses dos,overlay;}
uses dos;
type
packdate=array[1..3] of byte;
packtime=array[1..3] of byte;
packdatetimepp=^packdatetime;
packdatetime=array[1..6] of byte; { packdate + packtime, in that order }
ldatetimerec=
record
year,month,day,hour,min,sec,sec100:word;
end;
procedure pt2dt(pt:packtime; var dt:ldatetimerec);
procedure dt2pt(dt:ldatetimerec; var pt:packtime);
procedure pd2dt(pd:packdate; var dt:ldatetimerec);
procedure dt2pd(dt:ldatetimerec; var pd:packdate);
procedure pdt2dt(pdt:packdatetime; var dt:ldatetimerec);
procedure dt2pdt(dt:ldatetimerec; var pdt:packdatetime);
procedure getdatetime(var dt:ldatetimerec);
procedure getpackdatetime(pdtpp:packdatetimepp);
procedure getdayofweek(var dow:byte);
procedure s2pd(s:string; var pd:packdate; var errors:byte);
function pdt2dat(pdtpp:packdatetimepp; dow:byte):string;
function pdt2mdyhms(pdtpp:packdatetimepp):string;
implementation
procedure pt2dt(pt:packtime; var dt:ldatetimerec);
begin
with dt do begin
hour:=((pt[1] and 248) shr 3);
min:=((pt[1] and 7) shl 3)+((pt[2] and 224) shr 5);
sec:=((pt[2] and 31) shl 1)+((pt[3] and 128) shr 7);
sec100:=(pt[3] and 127);
end;
end;
procedure dt2pt(dt:ldatetimerec; var pt:packtime);
begin
with dt do begin
pt[1]:=((hour and 31) shl 3)+((min and 56) shr 3);
pt[2]:=((min and 7) shl 5)+((sec and 62) shr 1);
pt[3]:=((sec and 1) shl 7)+(sec100 and 127);
end;
end;
procedure pd2dt(pd:packdate; var dt:ldatetimerec);
begin
with dt do begin
year:=((pd[1] shl 7)+((pd[2] and 254) shr 1))+1800;
month:=((pd[2] and 1) shl 3)+((pd[3] and 224) shr 5);
day:=(pd[3] and 31);
hour:=0; min:=0; sec:=0;
end;
end;
procedure dt2pd(dt:ldatetimerec; var pd:packdate);
begin
with dt do begin
pd[1]:=(((year-1800) and 32641) shr 7);
pd[2]:=(((year-1800) and 127) shl 1)+((month and 8) shr 3);
pd[3]:=((month and 7) shl 5)+(day and 31);
end;
end;
procedure pdt2dt(pdt:packdatetime; var dt:ldatetimerec);
var pd:packdate;
pt:packtime;
begin
pd[1]:=pdt[1]; pd[2]:=pdt[2]; pd[3]:=pdt[3];
pt[1]:=pdt[4]; pt[2]:=pdt[5]; pt[3]:=pdt[6];
pd2dt(pd,dt); pt2dt(pt,dt);
end;
procedure dt2pdt(dt:ldatetimerec; var pdt:packdatetime);
var pd:packdate;
pt:packtime;
begin
dt2pd(dt,pd); dt2pt(dt,pt);
pdt[1]:=pd[1]; pdt[2]:=pd[2]; pdt[3]:=pd[3];
pdt[4]:=pt[1]; pdt[5]:=pt[2]; pdt[6]:=pt[3];
end;
procedure getdatetime(var dt:ldatetimerec);
var dow:word;
begin
getdate(dt.year,dt.month,dt.day,dow);
gettime(dt.hour,dt.min,dt.sec,dt.sec100);
end;
procedure getpackdatetime(pdtpp:packdatetimepp);
var dt:ldatetimerec;
begin
getdatetime(dt);
dt2pdt(dt,pdtpp^);
end;
procedure getdayofweek(var dow:byte);
var y,m,d,dd:word;
begin
getdate(y,m,d,dd);
dow:=dd;
end;
procedure s2pd(s:string; var pd:packdate; var errors:byte);
var dt:ldatetimerec;
m,d,y:longint;
y1,m1,d1,dow1:word;
zz:integer;
begin
errors:=0;
while (pos(' ',s)<>0) do delete(s,pos(' ',s),1);
while (pos('-',s)<>0) do s[pos('-',s)]:='/';
val(copy(s,1,pos('/',s)-1),m,zz);
s:=copy(s,pos('/',s)+1,length(s)-pos('/',s));
val(copy(s,1,pos('/',s)-1),d,zz);
s:=copy(s,pos('/',s)+1,length(s)-pos('/',s));
val(s,y,zz);
if ((m<1) or (m>12)) then begin errors:=1; exit; end;
if ((d<1) or (d>31)) then begin errors:=1; exit; end;
if ((y>=0) and (y<100)) then begin
getdate(y1,m1,d1,dow1);
y1:=(y1 div 100)*100;
inc(y,y1);
end;
if (y<1800) then begin errors:=1; exit; end;
with dt do begin
year:=y; month:=m; day:=d;
hour:=0; min:=0; sec:=0; sec100:=0;
end;
dt2pd(dt,pd);
end;
function pdt2dat(pdtpp:packdatetimepp; dow:byte):string;
var s,x:string;
pdt:packdatetime;
dt:ldatetimerec;
i:integer;
ispm:boolean;
begin
pdt:=pdtpp^;
pdt2dt(pdt,dt);
with dt do begin
i:=hour; ispm:=(i>=12);
if (ispm) then
if (i>12) then dec(i,12);
if (not ispm) then
if (i=0) then i:=12;
str(i,x); s:=x+':';
str(min,x); if (min<10) then x:='0'+x; s:=s+x+' ';
if (ispm) then s:=s+'p' else s:=s+'a';
s:=s+'m '+
copy('SunMonTueWedThuFriSat',dow*3+1,3)+' '+
copy('JanFebMarAprMayJunJulAugSepOctNovDec',(month-1)*3+1,3)+' ';
str(day,x); s:=s+x+', ';
str(year,x); s:=s+x;
end;
pdt2dat:=s;
end;
function pdt2mdyhms(pdtpp:packdatetimepp):string;
var pdt:packdatetime;
dt:ldatetimerec;
s:string;
function cstr(i:integer):string;
var s:string;
begin
str(i,s); if (i<10) then s:='0'+s;
cstr:=s;
end;
begin
pdt:=pdtpp^;
pdt2dt(pdt,dt);
with dt do
s:=cstr(month)+'/'+cstr(day)+'/'+cstr(year)+' '+
cstr(hour)+':'+cstr(min)+':'+cstr(sec)+'.'+cstr(sec100);
pdt2mdyhms:=s;
end;
(* | |
| |
Byte #1 | Byte #2 | Byte #3
===============|===============|===============
4 3 2 1 0 9 8 7|6 5 4 3 2 1 0 9|8 7 6 5 4 3 2 1
`---------------------------' `-----' `-------'
Year | Month Day
(15 bits)| (4 bits) (5 bits)
| |
| |
Byte #1 | Byte #2 | Byte #3
===============|===============|===============
4 3 2 1 0 9 8 7|6 5 4 3 2 1 0 9|8 7 6 5 4 3 2 1
`-------' `---------' `---------' `-----------'
Hour Minute Second | 1/100 Seconds
(5 bits) (6 bits) (6 bits)| (7 bits)
| |
*)
end.