home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Pascal Super Library
/
Pascal Super Library (CW International)(1997).bin
/
SWAG
/
SWAGA_C
/
ARCHIVES.SWG
/
0006_View LZH File.pas
< prev
next >
Wrap
Pascal/Delphi Source File
|
1993-05-28
|
4KB
|
149 lines
Program lzhview;
Uses
Dos, Crt;
Const
BSize = 4096; { I/O Buffer Size }
Type LZHHead = Record
HSize : Byte;
Fill1 : Byte;
Method : Array[1..5] of Char;
CompSize : LongInt;
UCompSize : LongInt;
Dos_DT : LongInt;
Fill2 : Word;
FileNameLen: Byte;
FileName : Array[1..12] of Char;
end;
Var LZH1 : LZHHead;
DT : DateTime;
FSize,L,C : LongInt;
F : File;
BUFF : Array[1..BSize] of Byte;
DATE : String[8]; { formatted date as YY/MM/DD }
TIME : String[6]; { " time as HH:MM }
RES : Word;
DIR : DirStr;
FNAME : NameStr;
EXT : ExtStr;
LZHString,
SName : String;
QUIT : Boolean;
SW : Pointer;
Function upper(st:String):String;
Var i : Integer;
begin
For i := 1 to length(st) do st[i] :=upcase(st[i]);
upper := st;
end;
Function ord_to_str(i:LongInt;j:Byte):String;
Var c:String;
begin
str(i,c);
While length(c)<j do c:=' '+c;
ord_to_str:=c;
end;
Procedure FDT(LI:LongInt); { Format Date/Time (time With AM PM) fields }
Var t_ext : String;
begin
UnPackTime (LI,DT);
DATE := ord_to_str(DT.Month,2)+'/'+ord_to_str(DT.Day,2)+'/'
+ord_to_str(DT.Year mod 100,2);
if DATE[1] = ' ' then DATE[1] := '0';
if DATE[4] = ' ' then DATE[4] := '0';
if DATE[7] = ' ' then DATE[7] := '0';
if DT.Hour in [0..11] then t_ext:='a' else t_ext:='p';
if DT.Hour in [13..24] then Dec(DT.Hour,12);
TIME := ord_to_str(DT.Hour,2)+':'+ord_to_str(DT.Min,2);
if TIME[1] = ' ' then TIME[1] := '0';
if TIME[4] = ' ' then TIME[4] := '0';
TIME:=TIME+t_ext;
end; { FDT }
Procedure GET_LZH_ENTRY;
begin
FillChar(LZH1,SizeOf(LZHHead),#0);
FillChar (DT,SizeOf(DT),#0);
L := SizeOf(LZHHead);
Seek (F,C); BlockRead (F,BUFF,L,RES);
Move (BUFF[1],LZH1,L);
With LZH1 do
if HSize > 0 then
begin
Move (FileNameLen,SNAME,FileNameLen+1);
UnPackTime (Dos_DT,DT);
FSize := CompSize
end
else QUIT := True
end; { GET_LZH_ENTRY }
Procedure DO_LZH (FN : String);
Var fnstr, LZHMeth : String;
fls,totu,totc : LongInt;
begin
totu:=0; totc:=0; fls:=0;
Assign (F,FN);
{$I-} Reset (F,1); {$I+}
if Ioresult<>0 then
begin
Writeln(upper(FN)+' not found');
Exit;
end;
FSize := FileSize(F);
C := 0;
QUIT := False;
Writeln('LZH File : '+upper(FN));
Writeln;
Writeln(' Filename OrigSize CompSize Method Date '
+' Time');
Writeln('------------ -------- -------- -------- --------'
+' ------');
Repeat
GET_LZH_ENTRY;
if not QUIT then
begin
FSplit (SNAME,DIR,FNAME,EXT);
fnstr:=FNAME+EXT;
While length(fnstr)<12 do insert(' ',fnstr,length(fnstr)+1);
FDT(LZH1.Dos_DT);
inc(totu,lzh1.ucompsize);
inc(totc,lzh1.compsize);
inc(fls,1);
Case LZH1.Method[4] of {normally only 0,1 or 5}
'0' : LZHMeth:='Stored ';
'1' : LZHMeth:='Frozen 1';
'2' : LZHMeth:='Frozen 2';
'3' : LZHMeth:='Frozen 3';
'4' : LZHMeth:='Frozen 4';
'5' : LZHMeth:='Frozen 5';
else LZHMeth:=' Unknown';
end;
LZHString:=Fnstr+' '+ord_to_str(LZH1.UCompsize,8)+' '+
ord_to_str(LZH1.Compsize,8)+' '+lzhmeth+' '
+DATE+' '+TIME;
Writeln(LZHString);
end;
Inc (C,FSize+LZH1.HSize+2)
Until QUIT;
Close (F);
Writeln('------------ -------- -------- -------- --------'
+' -----');
Writeln(ord_to_str(fls,5)+' Files '+ord_to_str(totu,8)+' '
+ord_to_str(totc,8));
end; { DO_LZH }
begin
ClrScr;
do_lzh('whatever.lzh'); { <-- place Filename here }
end.
{
Note the changes in the date processing and compression method display.
Thanks again For the code.
}