{
$Id: wutils.pas,v 1.17 2003/09/27 14:03:45 peter Exp $
This file is part of the Free Pascal Integrated Development Environment
Copyright (c) 1998 by Berczi Gabor
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
unit WUtils;
interface
{$ifndef FPC}
{$define TPUNIXLF}
{$endif}
uses
{$ifdef win32}
windows,
{$endif win32}
{$ifdef Unix}
{$ifdef VER1_0}
linux,
{$else}
baseunix,
unix,
{$endif}
{$endif Unix}
Dos,Objects;
const
kbCtrlGrayPlus = $9000;
kbCtrlGrayMinus = $8e00;
kbCtrlGrayMul = $9600;
TempFirstChar = {$ifndef Unix}'~'{$else}'_'{$endif};
TempExt = '.tmp';
TempNameLen = 8;
EOL : String[2] = {$ifdef Unix}#10;{$else}#13#10;{$endif}
type
PByteArray = ^TByteArray;
TByteArray = array[0..MaxBytes] of byte;
PNoDisposeCollection = ^TNoDisposeCollection;
TNoDisposeCollection = object(TCollection)
procedure FreeItem(Item: Pointer); virtual;
end;
PUnsortedStringCollection = ^TUnsortedStringCollection;
TUnsortedStringCollection = object(TCollection)
constructor CreateFrom(ALines: PUnsortedStringCollection);
procedure Assign(ALines: PUnsortedStringCollection);
function At(Index: Sw_Integer): PString;
procedure FreeItem(Item: Pointer); virtual;
function GetItem(var S: TStream): Pointer; virtual;
procedure PutItem(var S: TStream; Item: Pointer); virtual;
procedure InsertStr(const S: string);
end;
PNulStream = ^TNulStream;
TNulStream = object(TStream)
constructor Init;
function GetPos: Longint; virtual;
function GetSize: Longint; virtual;
procedure Read(var Buf; Count: Word); virtual;
procedure Seek(Pos: Longint); virtual;
procedure Write(var Buf; Count: Word); virtual;
end;
PSubStream = ^TSubStream;
TSubStream = object(TStream)
constructor Init(AStream: PStream; AStartPos, ASize: longint);
function GetPos: Longint; virtual;
function GetSize: Longint; virtual;
procedure Read(var Buf; Count: Word); virtual;
procedure Seek(Pos: Longint); virtual;
procedure Write(var Buf; Count: Word); virtual;
private
StartPos: longint;
S : PStream;
end;
PFastBufStream = ^TFastBufStream;
TFastBufStream = object(TBufStream)
constructor Init (FileName: FNameStr; Mode, Size: Word);
procedure Seek(Pos: Longint); virtual;
procedure Readline(var s:string;var linecomplete,hasCR : boolean);
private
BasePos: longint;
end;
PTextCollection = ^TTextCollection;
TTextCollection = object(TStringCollection)
function LookUp(const S: string; var Idx: sw_integer): string;
function Compare(Key1, Key2: Pointer): sw_Integer; virtual;
end;
PIntCollection = ^TIntCollection;
TIntCollection = object(TSortedCollection)
function Compare(Key1, Key2: Pointer): sw_Integer; virtual;
procedure FreeItem(Item: Pointer); virtual;
procedure Add(Item: longint);
function Contains(Item: longint): boolean;
function AtInt(Index: sw_integer): longint;
end;
{$ifdef TPUNIXLF}
procedure readln(var t:text;var s:string);
{$endif}
procedure ReadlnFromStream(Stream: PStream; var s:string;var linecomplete,hasCR : boolean);
function eofstream(s: pstream): boolean;
function Min(A,B: longint): longint;
function Max(A,B: longint): longint;
function CharStr(C: char; Count: integer): string;
function UpcaseStr(const S: string): string;
function LowCase(C: char): char;
function LowcaseStr(S: string): string;
function RExpand(const S: string; MinLen: byte): string;
function LExpand(const S: string; MinLen: byte): string;
function LTrim(const S: string): string;
function RTrim(const S: string): string;
function Trim(const S: string): string;
function IntToStr(L: longint): string;
function IntToStrL(L: longint; MinLen: sw_integer): string;
function IntToStrZ(L: longint; MinLen: sw_integer): string;
function StrToInt(const S: string): longint;
function StrToCard(const S: string): cardinal;
function FloatToStr(D: Double; Decimals: byte): string;
function FloatToStrL(D: Double; Decimals: byte; MinLen: byte): string;
function HexToInt(S: string): longint;
function HexToCard(S: string): cardinal;
function IntToHex(L: longint; MinLen: integer): string;
function GetStr(P: PString): string;
function GetPChar(P: PChar): string;
function BoolToStr(B: boolean; const TrueS, FalseS: string): string;
function LExtendString(S: string; MinLen: byte): string;
function DirOf(const S: string): string;
function ExtOf(const S: string): string;
function NameOf(const S: string): string;
function NameAndExtOf(const S: string): string;
function DirAndNameOf(const S: string): string;
{ return Dos GetFTime value or -1 if the file does not exist }
function GetFileTime(const FileName: string): longint;
{ copied from compiler global unit }
function GetShortName(const n:string):string;
function GetLongName(const n:string):string;
function TrimEndSlash(const Path: string): string;
function CompleteDir(const Path: string): string;
function GetCurDir: string;
function OptimizePath(Path: string; MaxLen: integer): string;
function CompareText(S1, S2: string): integer;
function ExistsDir(const DirName: string): boolean;
function ExistsFile(const FileName: string): boolean;
function SizeOfFile(const FileName: string): longint;
function DeleteFile(const FileName: string): integer;
function CopyFile(const SrcFileName, DestFileName: string): boolean;
function GenTempFileName: string;
function FormatPath(Path: string): string;
function CompletePath(const Base, InComplete: string): string;
function CompleteURL(const Base, URLRef: string): string;
function EatIO: integer;
function Now: longint;
function FormatDateTimeL(L: longint; const Format: string): string;
function FormatDateTime(const D: DateTime; const Format: string): string;
{$ifdef TP}
function StrPas(C: PChar): string;
{$endif}
function MemToStr(var B; Count: byte): string;
procedure StrToMem(S: string; var B);
procedure GiveUpTimeSlice;
const LastStrToIntResult : integer = 0;
LastHexToIntResult : integer = 0;
LastStrToCardResult : integer = 0;
LastHexToCardResult : integer = 0;
DirSep : char = {$ifdef Unix}'/'{$else}'\'{$endif};
UseOldBufStreamMethod : boolean = false;
procedure RegisterWUtils;
implementation
uses
{$IFDEF OS2}
DosCalls,
{$ENDIF OS2}
Strings;
{$ifndef NOOBJREG}
const
SpaceStr = ' '+
' '+
' '+
' ' ;
RUnsortedStringCollection: TStreamRec = (
ObjType: 22500;
VmtLink: Ofs(TypeOf(TUnsortedStringCollection)^);
Load: @TUnsortedStringCollection.Load;
Store: @TUnsortedStringCollection.Store
);
{$endif}
{$ifdef TPUNIXLF}
procedure readln(var t:text;var s:string);
var
c : char;
i : longint;
begin
if TextRec(t).UserData[1]=2 then
system.readln(t,s)
else
begin
c:=#0;
i:=0;
while (not eof(t)) and (c<>#10) and (i<High(S)) do
begin
read(t,c);
if c<>#10 then
begin
inc(i);
s[i]:=c;
end;
end;
if (i>0) and (s[i]=#13) then
begin
dec(i);
TextRec(t).UserData[1]:=2;
end;
s[0]:=chr(i);
end;
end;
{$endif}
function eofstream(s: pstream): boolean;
begin
eofstream:=(s^.getpos>=s^.getsize);
end;
procedure ReadlnFromStream(Stream: PStream; var S:string;var linecomplete,hasCR : boolean);
var
c : char;
i,pos : longint;
begin
linecomplete:=false;
c:=#0;
i:=0;
{ this created problems for lines longer than 255 characters
now those lines are cutted into pieces without warning PM }
{ changed implicit 255 to High(S), so it will be automatically extended
when longstrings eventually become default - Gabor }
while (not eofstream(stream)) and (c<>#10) and (i<High(S)) do
begin
stream^.read(c,sizeof(c));
if c<>#10 then
begin
inc(i);
s[i]:=c;
end;
end;
{ if there was a CR LF then remove the CR Dos newline style }
if (i>0) and (s[i]=#13) then
begin
dec(i);
end;
if (c=#13) and (not eofstream(stream)) then
stream^.read(c,sizeof(c));
if (i=High(S)) and not eofstream(stream) then
begin
pos:=stream^.getpos;
stream^.read(c,sizeof(c));
if (c=#13) and not eofstream(stream) then
stream^.read(c,sizeof(c));
if c<>#10 then
stream^.seek(pos);
end;
if (c=#10) or eofstream(stream) then
linecomplete:=true;
if (c=#10) then
hasCR:=true;
s[0]:=chr(i);
end;
{$ifdef TP}
{ TP's own StrPas() is buggy, because it causes GPF with strings longer than
255 chars }
function StrPas(C: PChar): string;
var S: string;
I: longint;
begin
if Assigned(C)=false then
S:=''
else
begin
I:=StrLen(C); if I>High(S) then I:=High(S);
S[0]:=chr(I); Move(C^,S[1],I);
end;
StrPas:=S;
end;
{$endif}
function MemToStr(var B; Count: byte): string;
var S: string;
begin
S[0]:=chr(Count);
if Count>0 then Move(B,S[1],Count);
MemToStr:=S;
end;
procedure StrToMem(S: string; var B);
begin
if length(S)>0 then Move(S[1],B,length(S));
end;
function Max(A,B: longint): longint;
begin
if A>B then Max:=A else Max:=B;
end;
function Min(A,B: longint): longint;
begin
if A<B then Min:=A else Min:=B;
end;
function CharStr(C: char; Count: integer): string;
{$ifndef FPC}
var S: string;
{$endif}
begin
if Count<=0 then
begin
CharStr:='';
exit;
end
else if Count>255 then
Count:=255;
{$ifdef FPC}
CharStr[0]:=chr(Count);
FillChar(CharStr[1],Count,C);
{$else}
S[0]:=chr(Count);
FillChar(S[1],Count,C);
CharStr:=S;
{$endif}
end;
function UpcaseStr(const S: string): string;
var
I: Longint;
begin
for I:=1 to length(S) do
if S[I] in ['a'..'z'] then
UpCaseStr[I]:=chr(ord(S[I])-32)
else
UpCaseStr[I]:=S[I];
UpcaseStr[0]:=S[0];
end;
function RExpand(const S: string; MinLen: byte): string;
begin
if length(S)<MinLen then
RExpand:=S+CharStr(' ',MinLen-length(S))
else
RExpand:=S;
end;
function LExpand(const S: string; MinLen: byte): string;
begin
if length(S)<MinLen then
LExpand:=CharStr(' ',MinLen-length(S))+S
else
LExpand:=S;
end;
function LTrim(const S: string): string;
var
i : longint;
begin
i:=1;
while (i<length(s)) and (s[i]=' ') do
inc(i);
LTrim:=Copy(s,i,High(S));
end;
function RTrim(const S: string): string;
var
i : longint;
begin
i:=length(s);
while (i>0) and (s[i]=' ') do
dec(i);
RTrim:=Copy(s,1,i);
end;
function Trim(const S: string): string;
var
i,j : longint;
begin
i:=1;
while (i<length(s)) and (s[i]=' ') do
inc(i);
j:=length(s);
while (j>0) and (s[j]=' ') do
dec(j);
Trim:=Copy(S,i,j-i+1);
end;
function IntToStr(L: longint): string;
var S: string;
begin
Str(L,S);
IntToStr:=S;
end;
function IntToStrL(L: longint; MinLen: sw_integer): string;
begin
IntToStrL:=LExpand(IntToStr(L),MinLen);
end;
function IntToStrZ(L: longint; MinLen: sw_integer): string;
var S: string;
begin
S:=IntToStr(L);
if length(S)<MinLen then
S:=CharStr('0',MinLen-length(S))+S;
IntToStrZ:=S;
end;
function StrToInt(const S: string): longint;
var L: longint;
C: integer;
begin
Val(S,L,C); if C<>0 then L:=-1;
LastStrToIntResult:=C;
StrToInt:=L;
end;
function StrToCard(const S: string): cardinal;
var L: cardinal;
C: integer;
begin
Val(S,L,C); if C<>0 then L:=$ffffffff;
LastStrToCardResult:=C;
StrToCard:=L;
end;
function HexToInt(S: string): longint;
var L,I: longint;
C: char;
const HexNums: string[16] = '0123456789ABCDEF';
begin
S:=Trim(S); L:=0; I:=1; LastHexToIntResult:=0;
while (I<=length(S)) and (LastHexToIntResult=0) do
begin
C:=Upcase(S[I]);
if C in['0'..'9','A'..'F'] then
begin
L:=L*16+(Pos(C,HexNums)-1);
end else LastHexToIntResult:=I;
Inc(I);
end;
HexToInt:=L;
end;
function HexToCard(S: string): cardinal;
var L,I: cardinal;
C: char;
const HexNums: string[16] = '0123456789ABCDEF';
begin
S:=Trim(S); L:=0; I:=1; LastHexToCardResult:=0;
while (I<=length(S)) and (LastHexToCardResult=0) do
begin
C:=Upcase(S[I]);
if C in['0'..'9','A'..'F'] then
begin
L:=L*16+(Pos(C,HexNums)-1);
end else LastHexToCardResult:=I;
Inc(I);
end;
HexToCard:=L;
end;
function IntToHex(L: longint; MinLen: integer): string;
const HexNums : string[16] = '0123456789ABCDEF';
var S: string;
R: real;
function DivF(Mit,Mivel: real): longint;
begin
DivF:=trunc(Mit/Mivel);
end;
function ModF(Mit,Mivel: real): longint;
begin
ModF:=trunc(Mit-DivF(Mit,Mivel)*Mivel);
end;
begin
S:='';
R:=L; if R<0 then begin R:=R+2147483647+2147483647+2; end;
repeat
Insert(HexNums[ModF(R,16)+1],S,1);
R:=DivF(R,16);
until R=0;
while length(S)<MinLen do
Insert('0',S,1);
IntToHex:=S;
end;
function FloatToStr(D: Double; Decimals: byte): string;
var S: string;
L: byte;
begin
Str(D:0:Decimals,S);
if length(S)>0 then
while (S[1]=' ') do Delete(S,1,1);
FloatToStr:=S;
end;
function FloatToStrL(D: Double; Decimals: byte; MinLen: byte): string;
begin
FloatToStrL:=LExtendString(FloatToStr(D,Decimals),MinLen);
end;
function LExtendString(S: string; MinLen: byte): string;
begin
LExtendString:=copy(SpaceStr,1,MinLen-length(S))+S;
end;
function GetStr(P: PString): string;
begin
if P=nil then GetStr:='' else GetStr:=P^;
end;
function GetPChar(P: PChar): string;
begin
if P=nil then GetPChar:='' else GetPChar:=StrPas(P);
end;
function DirOf(const S: string): string;
var D: DirStr; E: ExtStr; N: NameStr;
begin
FSplit(S,D,N,E);
if (D<>'') and (D[Length(D)]<>DirSep) then
DirOf:=D+DirSep
else
DirOf:=D;
end;
function ExtOf(const S: string): string;
var D: DirStr; E: ExtStr; N: NameStr;
begin
FSplit(S,D,N,E);
ExtOf:=E;
end;
function NameOf(const S: string): string;
var D: DirStr; E: ExtStr; N: NameStr;
begin
FSplit(S,D,N,E);
NameOf:=N;
end;
function NameAndExtOf(const S: string): string;
var D: DirStr; E: ExtStr; N: NameStr;
begin
FSplit(S,D,N,E);
NameAndExtOf:=N+E;
end;
function DirAndNameOf(const S: string): string;
var D: DirStr; E: ExtStr; N: NameStr;
begin
FSplit(S,D,N,E);
DirAndNameOf:=D+N;
end;
{ return Dos GetFTime value or -1 if the file does not exist }
function GetFileTime(const FileName: string): longint;
var T: longint;
f: file;
FM: integer;
begin
if FileName='' then
T:=-1
else
begin
FM:=FileMode; FileMode:=0;
EatIO; Dos.DosError:=0;
Assign(f,FileName);
{$I-}
Reset(f);
if InOutRes=0 then
begin
GetFTime(f,T);
Close(f);
end;
{$I+}
if (EatIO<>0) or (Dos.DosError<>0) then T:=-1;
FileMode:=FM;
end;
GetFileTime:=T;
end;
function GetShortName(const n:string):string;
{$ifdef win32}
var
hs,hs2 : string;
i : longint;
{$endif}
{$ifdef go32v2}
var
hs : string;
{$endif}
begin
GetShortName:=n;
{$ifdef win32}
hs:=n+#0;
i:=Windows.GetShortPathName(@hs[1],@hs2[1],high(hs2));
if (i>0) and (i<=high(hs2)) then
begin
hs2[0]:=chr(strlen(@hs2[1]));
GetShortName:=hs2;
end;
{$endif}
{$ifdef go32v2}
hs:=n;
if Dos.GetShortName(hs) then
GetShortName:=hs;
{$endif}
end;
function GetLongName(const n:string):string;
{$ifdef win32}
var
hs : string;
hs2 : Array [0..255] of char;
i : longint;
j : pchar;
{$endif}
{$ifdef go32v2}
var
hs : string;
{$endif}
begin
GetLongName:=n;
{$ifdef win32}
hs:=n+#0;
i:=Windows.GetFullPathName(@hs[1],256,hs2,j);
if (i>0) and (i<=high(hs)) then
begin
hs:=strpas(hs2);
GetLongName:=hs;
end;
{$endif}
{$ifdef go32v2}
hs:=n;
if Dos.GetLongName(hs) then
GetLongName:=hs;
{$endif}
end;
function EatIO: integer;
begin
EatIO:=IOResult;
end;
function LowCase(C: char): char;
begin
if ('A'<=C) and (C<='Z') then C:=chr(ord(C)+32);
LowCase:=C;
end;
function LowcaseStr(S: string): string;
var I: Longint;
begin
for I:=1 to length(S) do
S[I]:=Lowcase(S[I]);
LowcaseStr:=S;
end;
function BoolToStr(B: boolean; const TrueS, FalseS: string): string;
begin
if B then BoolToStr:=TrueS else BoolToStr:=FalseS;
end;
procedure TNoDisposeCollection.FreeItem(Item: Pointer);
begin
{ don't do anything here }
end;
constructor TUnsortedStringCollection.CreateFrom(ALines: PUnsortedStringCollection);
begin
if Assigned(ALines)=false then Fail;
inherited Init(ALines^.Count,ALines^.Count div 10);
Assign(ALines);
end;
procedure TUnsortedStringCollection.Assign(ALines: PUnsortedStringCollection);
procedure AddIt(P: PString); {$ifndef FPC}far;{$endif}
begin
Insert(NewStr(GetStr(P)));
end;
begin
FreeAll;
if Assigned(ALines) then
ALines^.ForEach(@AddIt);
end;
procedure TUnsortedStringCollection.InsertStr(const S: string);
begin
Insert(NewStr(S));
end;
function TUnsortedStringCollection.At(Index: Sw_Integer): PString;
begin
At:=inherited At(Index);
end;
procedure TUnsortedStringCollection.FreeItem(Item: Pointer);
begin
if Item<>nil then DisposeStr(Item);
end;
function TUnsortedStringCollection.GetItem(var S: TStream): Pointer;
begin
GetItem:=S.ReadStr;
end;
procedure TUnsortedStringCollection.PutItem(var S: TStream; Item: Pointer);
begin
S.WriteStr(Item);
end;
function TIntCollection.Contains(Item: longint): boolean;
var Index: sw_integer;
begin
Contains:=Search(pointer(Item),Index);
end;
function TIntCollection.AtInt(Index: sw_integer): longint;
begin
AtInt:=longint(At(Index));
end;
procedure TIntCollection.Add(Item: longint);
begin
Insert(pointer(Item));
end;
function TIntCollection.Compare(Key1, Key2: Pointer): sw_Integer;
var K1: longint absolute Key1;
K2: longint absolute Key2;
R: integer;
begin
if K1<K2 then R:=-1 else
if K1>K2 then R:= 1 else
R:=0;
Compare:=R;
end;
procedure TIntCollection.FreeItem(Item: Pointer);
begin
{ do nothing here }
end;
constructor TNulStream.Init;
begin
inherited Init;
Position:=0;
end;
function TNulStream.GetPos: Longint;
begin
GetPos:=Position;
end;
function TNulStream.GetSize: Longint;
begin
GetSize:=Position;
end;
procedure TNulStream.Read(var Buf; Count: Word);
begin
Error(stReadError,0);
end;
procedure TNulStream.Seek(Pos: Longint);
begin
if Pos<=Position then
Position:=Pos;
end;
procedure TNulStream.Write(var Buf; Count: Word);
begin
Inc(Position,Count);
end;
constructor TSubStream.Init(AStream: PStream; AStartPos, ASize: longint);
begin
inherited Init;
if Assigned(AStream)=false then Fail;
S:=AStream; StartPos:=AStartPos; StreamSize:=ASize;
Seek(0);
end;
function TSubStream.GetPos: Longint;
var Pos: longint;
begin
Pos:=S^.GetPos; Dec(Pos,StartPos);
GetPos:=Pos;
end;
function TSubStream.GetSize: Longint;
begin
GetSize:=StreamSize;
end;
procedure TSubStream.Read(var Buf; Count: Word);
var Pos: longint;
RCount: word;
begin
Pos:=GetPos;
if Pos+Count>StreamSize then RCount:=StreamSize-Pos else RCount:=Count;
S^.Read(Buf,RCount);
if RCount<Count then
Error(stReadError,0);
end;
procedure TSubStream.Seek(Pos: Longint);
var RPos: longint;
begin
if (Pos<=StreamSize) then RPos:=Pos else RPos:=StreamSize;
S^.Seek(StartPos+RPos);
end;
procedure TSubStream.Write(var Buf; Count: Word);
begin
S^.Write(Buf,Count);
end;
constructor TFastBufStream.Init (FileName: FNameStr; Mode, Size: Word);
begin
Inherited Init(FileName,Mode,Size);
BasePos:=0;
end;
procedure TFastBufStream.Seek(Pos: Longint);
var RelOfs: longint;
begin
RelOfs:=Pos-BasePos;
if (RelOfs<0) or (RelOfs>=BufEnd) or (BufEnd=0) then
begin
inherited Seek(Pos);
BasePos:=Pos-BufPtr;
end
else
begin
BufPtr:=RelOfs;
Position:=Pos;
end;
end;
procedure TFastBufStream.Readline(var s:string;var linecomplete,hasCR : boolean);
var
c : char;
i,pos,StartPos : longint;
charsInS : boolean;
begin
linecomplete:=false;
c:=#0;
i:=0;
{ this created problems for lines longer than 255 characters
now those lines are cutted into pieces without warning PM }
{ changed implicit 255 to High(S), so it will be automatically extended
when longstrings eventually become default - Gabor }
if (bufend-bufptr>=High(S)) and (getpos+High(S)<getsize) then
begin
StartPos:=GetPos;
//read(S[1],High(S));
system.move(buffer^[bufptr],S[1],High(S));
charsInS:=true;
end
else
CharsInS:=false;
while (CharsInS or not (getpos>=getsize)) and
(c<>#10) and (i<High(S)) do
begin
if CharsInS then
c:=s[i+1]
else
read(c,sizeof(c));
if c<>#10 then
begin
inc(i);
if not CharsInS then
s[i]:=c;
end;
end;
if CharsInS then
begin
if c=#10 then
Seek(StartPos+i+1)
else
Seek(StartPos+i);
end;
{ if there was a CR LF then remove the CR Dos newline style }
if (i>0) and (s[i]=#13) then
begin
dec(i);
end;
if (c=#13) and (not (getpos>=getsize)) then
begin
read(c,sizeof(c));
end;
if (i=High(S)) and not (getpos>=getsize) then
begin
pos:=getpos;
read(c,sizeof(c));
if (c=#13) and not (getpos>=getsize) then
read(c,sizeof(c));
if c<>#10 then
seek(pos);
end;
if (c=#10) or (getpos>=getsize) then
linecomplete:=true;
if (c=#10) then
hasCR:=true;
s[0]:=chr(i);
end;
function TTextCollection.Compare(Key1, Key2: Pointer): Sw_Integer;
var K1: PString absolute Key1;
K2: PString absolute Key2;
R: Sw_integer;
S1,S2: string;
begin
S1:=UpCaseStr(K1^);
S2:=UpCaseStr(K2^);
if S1<S2 then R:=-1 else
if S1>S2 then R:=1 else
R:=0;
Compare:=R;
end;
function TTextCollection.LookUp(const S: string; var Idx: sw_integer): string;
var OLI,ORI,Left,Right,Mid: integer;
{LeftP,RightP,}MidP: PString;
{LeftS,}MidS{,RightS}: string;
FoundS: string;
UpS : string;
begin
Idx:=-1; FoundS:='';
Left:=0; Right:=Count-1;
UpS:=UpCaseStr(S);
while Left<=Right do
begin
OLI:=Left; ORI:=Right;
Mid:=Left+(Right-Left) div 2;
MidP:=At(Mid);
MidS:=UpCaseStr(MidP^);
if copy(MidS,1,length(UpS))=UpS then
begin
Idx:=Mid; FoundS:=GetStr(MidP);
{ exit immediately if exact match PM }
If Length(MidS)=Length(UpS) then
break;
end;
if UpS<MidS then
Right:=Mid
else
Left:=Mid;
if (OLI=Left) and (ORI=Right) then
begin
if (Left<Right) then
Left:=Right
else
Break;
end;
end;
LookUp:=FoundS;
end;
function TrimEndSlash(const Path: string): string;
var S: string;
begin
S:=Path;
if (length(S)>0) and (S<>DirSep) and (copy(S,length(S),1)=DirSep) and
(S[length(S)-1]<>':') then
S:=copy(S,1,length(S)-1);
TrimEndSlash:=S;
end;
function CompareText(S1, S2: string): integer;
var R: integer;
begin
S1:=UpcaseStr(S1); S2:=UpcaseStr(S2);
if S1<S2 then R:=-1 else
if S1>S2 then R:= 1 else
R:=0;
CompareText:=R;
end;
function FormatPath(Path: string): string;
var P: sw_integer;
SC: char;
begin
if ord(DirSep)=ord('/') then
SC:='\'
else
SC:='/';
repeat
P:=Pos(SC,Path);
if P>0 then Path[P]:=DirSep;
until P=0;
FormatPath:=Path;
end;
function CompletePath(const Base, InComplete: string): string;
var Drv,BDrv: string[40]; D,BD: DirStr; N,BN: NameStr; E,BE: ExtStr;
P: sw_integer;
Complete: string;
begin
Complete:=FormatPath(InComplete);
FSplit(FormatPath(InComplete),D,N,E);
P:=Pos(':',D); if P=0 then Drv:='' else begin Drv:=copy(D,1,P); Delete(D,1,P); end;
FSplit(FormatPath(Base),BD,BN,BE);
P:=Pos(':',BD); if P=0 then BDrv:='' else begin BDrv:=copy(BD,1,P); Delete(BD,1,P); end;
if copy(D,1,1)<>DirSep then
Complete:=BD+D+N+E;
if Drv='' then
Complete:=BDrv+Complete;
Complete:=FExpand(Complete);
CompletePath:=Complete;
end;
function CompleteURL(const Base, URLRef: string): string;
var P: integer;
Drive: string[20];
IsComplete: boolean;
S: string;
Ref: string;
Bookmark: string;
begin
IsComplete:=false; Ref:=URLRef;
P:=Pos(':',Ref);
if P=0 then Drive:='' else Drive:=UpcaseStr(copy(Ref,1,P-1));
if Drive<>'' then
if (Drive='MAILTO') or (Drive='FTP') or (Drive='HTTP') or
(Drive='GOPHER') or (Drive='FILE') then
IsComplete:=true;
if IsComplete then S:=Ref else
begin
P:=Pos('#',Ref);
if P=0 then
Bookmark:=''
else
begin
Bookmark:=copy(Ref,P+1,length(Ref));
Ref:=copy(Ref,1,P-1);
end;
S:=CompletePath(Base,Ref);
if Bookmark<>'' then
S:=S+'#'+Bookmark;
end;
CompleteURL:=S;
end;
function OptimizePath(Path: string; MaxLen: integer): string;
var i : integer;
BackSlashs : array[1..20] of integer;
BSCount : integer;
Jobbra : boolean;
Jobb, Bal : byte;
Hiba : boolean;
begin
if length(Path)>MaxLen then
begin
BSCount:=0; Jobbra:=true;
for i:=1 to length(Path) do if Path[i]=DirSep then
begin
Inc(BSCount);
BackSlashs[BSCount]:=i;
end;
i:=BSCount div 2;
Hiba:=false;
Bal:=i; Jobb:=i+1;
case i of 0 : ;
1 : Path:=copy(Path, 1, BackSlashs[1])+'..'+
copy(Path, BackSlashs[2], length(Path));
else begin
while (BackSlashs[Bal]+(length(Path)-BackSlashs[Jobb]) >=
MaxLen) and not Hiba do
begin
if Jobbra then begin
if Jobb<BSCount then inc(Jobb)
else Hiba:=true;
Jobbra:=false;
end
else begin
if Bal>1 then dec(Bal)
else Hiba:=true;
Jobbra:=true;
end;
end;
Path:=copy(Path, 1, BackSlashs[Bal])+'..'+
copy(Path, BackSlashs[Jobb], length(Path));
end;
end;
end;
if length(Path)>MaxLen then
begin
i:=Pos('\..\',Path);
if i>0 then Path:=copy(Path,1,i-1)+'..'+copy(Path,i+length('\..\'),length(Path));
end;
OptimizePath:=Path;
end;
function Now: longint;
var D: DateTime;
W: word;
L: longint;
begin
FillChar(D,sizeof(D),0);
GetDate(D.Year,D.Month,D.Day,W);
GetTime(D.Hour,D.Min,D.Sec,W);
PackTime(D,L);
Now:=L;
end;
function FormatDateTimeL(L: longint; const Format: string): string;
var D: DateTime;
begin
UnpackTime(L,D);
FormatDateTimeL:=FormatDateTime(D,Format);
end;
function FormatDateTime(const D: DateTime; const Format: string): string;
var I: sw_integer;
CurCharStart: sw_integer;
CurChar: char;
CurCharCount: integer;
DateS: string;
C: char;
procedure FlushChars;
var S: string;
I: sw_integer;
begin
S:='';
for I:=1 to CurCharCount do
S:=S+CurChar;
case CurChar of
'y' : S:=IntToStrL(D.Year,length(S));
'm' : S:=IntToStrZ(D.Month,length(S));
'd' : S:=IntToStrZ(D.Day,length(S));
'h' : S:=IntToStrZ(D.Hour,length(S));
'n' : S:=IntToStrZ(D.Min,length(S));
's' : S:=IntToStrZ(D.Sec,length(S));
end;
DateS:=DateS+S;
end;
begin
DateS:='';
CurCharStart:=-1; CurCharCount:=0; CurChar:=#0;
for I:=1 to length(Format) do
begin
C:=Format[I];
if (C<>CurChar) or (CurCharStart=-1) then
begin
if CurCharStart<>-1 then FlushChars;
CurCharCount:=1; CurCharStart:=I;
end
else
Inc(CurCharCount);
CurChar:=C;
end;
FlushChars;
FormatDateTime:=DateS;
end;
function DeleteFile(const FileName: string): integer;
var f: file;
begin
{$I-}
Assign(f,FileName);
Erase(f);
DeleteFile:=EatIO;
{$I+}
end;
function ExistsFile(const FileName: string): boolean;
var
Dir : SearchRec;
begin
Dos.FindFirst(FileName,Archive+ReadOnly,Dir);
ExistsFile:=(Dos.DosError=0);
{$ifdef FPC}
Dos.FindClose(Dir);
{$endif def FPC}
end;
{ returns zero for empty and non existant files }
function SizeOfFile(const FileName: string): longint;
var
Dir : SearchRec;
begin
Dos.FindFirst(FileName,Archive+ReadOnly,Dir);
if (Dos.DosError=0) then
SizeOfFile:=Dir.Size
else
SizeOfFile:=0;
{$ifdef FPC}
Dos.FindClose(Dir);
{$endif def FPC}
end;
function ExistsDir(const DirName: string): boolean;
var
Dir : SearchRec;
begin
Dos.FindFirst(TrimEndSlash(DirName),Directory,Dir);
{ if a file is found it is also reported
at least for some Dos version
so we need to check the attributes PM }
ExistsDir:=(Dos.DosError=0) and ((Dir.attr and Directory) <> 0);
{$ifdef FPC}
Dos.FindClose(Dir);
{$endif def FPC}
end;
function CompleteDir(const Path: string): string;
begin
{ keep c: untouched PM }
if (Path<>'') and (Path[Length(Path)]<>DirSep) and
(Path[Length(Path)]<>':') then
CompleteDir:=Path+DirSep
else
CompleteDir:=Path;
end;
function GetCurDir: string;
var S: string;
begin
GetDir(0,S);
if copy(S,length(S),1)<>DirSep then S:=S+DirSep;
GetCurDir:=S;
end;
function GenTempFileName: string;
var Dir: string;
Name: string;
I: integer;
OK: boolean;
Path: string;
begin
Dir:=GetEnv('TEMP');
if Dir='' then Dir:=GetEnv('TMP');
if (Dir<>'') then if not ExistsDir(Dir) then Dir:='';
if Dir='' then Dir:=GetCurDir;
repeat
Name:=TempFirstChar;
for I:=2 to TempNameLen do
Name:=Name+chr(ord('a')+random(ord('z')-ord('a')+1));
Name:=Name+TempExt;
Path:=CompleteDir(Dir)+Name;
OK:=not ExistsFile(Path);
until OK;
GenTempFileName:=Path;
end;
function CopyFile(const SrcFileName, DestFileName: string): boolean;
var SrcF,DestF: PBufStream;
OK: boolean;
begin
SrcF:=nil; DestF:=nil;
New(SrcF, Init(SrcFileName,stOpenRead,4096));
OK:=Assigned(SrcF) and (SrcF^.Status=stOK);
if OK then
begin
New(DestF, Init(DestFileName,stCreate,1024));
OK:=Assigned(DestF) and (DestF^.Status=stOK);
end;
if OK then DestF^.CopyFrom(SrcF^,SrcF^.GetSize);
if Assigned(DestF) then Dispose(DestF, Done);
if Assigned(SrcF) then Dispose(SrcF, Done);
CopyFile:=OK;
end;
procedure GiveUpTimeSlice;
{$ifdef GO32V2}{$define DOS}{$endif}
{$ifdef TP}{$define DOS}{$endif}
{$ifdef DOS}
var r: registers;
begin
r.ax:=$1680;
intr($2f,r);
end;
{$endif}
{$ifdef Unix}
var
req,rem : timespec;
begin
req.tv_sec:=0;
req.tv_nsec:=10000000;{ 10 ms }
{$ifdef ver1_0}nanosleep(req,rem){$else}fpnanosleep(@req,@rem){$endif};
end;
{$endif}
{$IFDEF OS2}
begin
DosSleep (5);
end;
{$ENDIF}
{$ifdef Win32}
begin
{ if the return value of this call is non zero then
it means that a ReadFileEx or WriteFileEx have completed
unused for now ! }
{ wait for 10 ms }
if SleepEx(10,true)=WAIT_IO_COMPLETION then
begin
{ here we should handle the completion of the routines
if we use them }
end;
end;
{$endif}
{$undef DOS}
procedure RegisterWUtils;
begin
{$ifndef NOOBJREG}
RegisterType(RUnsortedStringCollection);
{$endif}
end;
BEGIN
Randomize;
END.
{
$Log: wutils.pas,v $
Revision 1.17 2003/09/27 14:03:45 peter
* fixed for unix
Revision 1.16 2002/09/11 12:10:03 pierre
* fix bug in new readline method on line overflow
Revision 1.15 2002/09/11 08:30:38 pierre
* avoid a lot of useless calls in readline method
Revision 1.14 2002/09/10 12:19:14 pierre
* use faster method for loading files by default
Revision 1.13 2002/09/09 06:58:27 pierre
+ FastBufStream.readline method added
Revision 1.12 2002/09/07 15:40:50 peter
* old logs removed and tabs fixed
Revision 1.11 2002/09/06 09:53:53 pierre
* explicitly set BasePos to zero in TFastBufStream constructor
Revision 1.10 2002/08/29 07:59:46 pierre
CVS: Enter log comment for commit
+ SizeOfFile function added
Revision 1.9 2002/05/13 13:44:33 peter
* fixed range error
Revision 1.8 2002/04/02 13:23:02 pierre
+ HextToCard StrToCard new functions
Revision 1.7 2002/03/22 16:43:27 pierre
* avoid that constructor is proposed for code complete if const is given
Revision 1.6 2002/03/20 13:48:31 pierre
* avoid stack corruption in CharStr if count > 255
}
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