mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 17:51:38 +01:00
953 lines
24 KiB
PHP
953 lines
24 KiB
PHP
{
|
|
This file is part of the Free Pascal run time library.
|
|
Copyright (c) 1999-2005 by Florian Klaempfl,
|
|
member of the Free Pascal development team.
|
|
|
|
This file implements support routines for WideStrings with FPC
|
|
|
|
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.
|
|
|
|
**********************************************************************}
|
|
|
|
{
|
|
This file contains the implementation of the WideString type,
|
|
and all things that are needed for it.
|
|
WideString is defined as a 'silent' pwidechar :
|
|
a pwidechar that points to:
|
|
|
|
@-4 : DWord for size; size=number of bytes, not the number of chars. Divide or multiply
|
|
with sizeof(WideChar) to convert. This is needed to be compatible with Delphi and
|
|
Windows COM BSTR.
|
|
@ : String + Terminating #0;
|
|
Pwidechar(Widestring) is a valid typecast.
|
|
So WS[i] is converted to the address @WS+i-1.
|
|
|
|
Constants should be assigned a reference count of -1
|
|
Meaning that they can't be disposed of.
|
|
}
|
|
|
|
Type
|
|
PWideRec = ^TWideRec;
|
|
TWideRec = Packed Record
|
|
Len : DWord;
|
|
end;
|
|
|
|
Const
|
|
WideRecLen = SizeOf(TWideRec);
|
|
WideFirstOff = SizeOf(TWideRec);
|
|
|
|
{
|
|
Default WideChar <-> AnsiChar conversion is to only convert the
|
|
lower 127 chars, all others are translated to spaces.
|
|
|
|
These routines can be overwritten for the Current Locale
|
|
}
|
|
|
|
procedure DefaultAnsi2WideMove(source:PAnsiChar;cp : TSystemCodePage;var dest:widestring;len:SizeInt);
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
setlength(dest,len);
|
|
for i:=1 to len do
|
|
begin
|
|
dest[i]:=widechar(byte(source^));
|
|
inc(source);
|
|
end;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Internal functions, not in interface.
|
|
****************************************************************************}
|
|
|
|
|
|
procedure WideStringError;
|
|
begin
|
|
HandleErrorAddrFrameInd(204,get_pc_addr,get_frame);
|
|
end;
|
|
|
|
|
|
Function NewWideString(Len : SizeInt) : Pointer;
|
|
{
|
|
Allocate a new WideString on the heap.
|
|
initialize it to zero length and reference count 1.
|
|
}
|
|
Var
|
|
P : Pointer;
|
|
begin
|
|
{$ifdef MSWINDOWS}
|
|
if winwidestringalloc then
|
|
begin
|
|
P:=SysAllocStringLen(nil,Len);
|
|
if P=nil then
|
|
WideStringError;
|
|
end
|
|
else
|
|
{$endif MSWINDOWS}
|
|
begin
|
|
GetMem(P,Len*sizeof(WideChar)+WideRecLen);
|
|
If P<>Nil then
|
|
begin
|
|
PWideRec(P)^.Len:=Len*2; { Initial length }
|
|
inc(p,WideFirstOff); { Points to widestring now }
|
|
PWideChar(P)^:=#0; { Terminating #0 }
|
|
end
|
|
else
|
|
WideStringError;
|
|
end;
|
|
NewWideString:=P;
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_Decr_Ref (Var S : Pointer);[Public,Alias:'FPC_WIDESTR_DECR_REF']; compilerproc;
|
|
{
|
|
Decreases the ReferenceCount of a non constant widestring;
|
|
If the reference count is zero, deallocate the widestring;
|
|
}
|
|
Begin
|
|
If S=Nil then
|
|
exit;
|
|
{$ifdef MSWINDOWS}
|
|
if winwidestringalloc then
|
|
SysFreeString(S)
|
|
else
|
|
{$endif MSWINDOWS}
|
|
begin
|
|
Dec (S,WideFirstOff);
|
|
Freemem(S);
|
|
end;
|
|
S:=Nil;
|
|
end;
|
|
|
|
{ alias for internal use }
|
|
Procedure fpc_WideStr_Decr_Ref (Var S : Pointer);[external name 'FPC_WIDESTR_DECR_REF'];
|
|
|
|
Procedure fpc_WideStr_Incr_Ref(Var S : Pointer);[Public,Alias:'FPC_WIDESTR_INCR_REF']; compilerproc;
|
|
var
|
|
p : pointer;
|
|
Begin
|
|
If S=Nil then
|
|
exit;
|
|
p:=NewWidestring(length(WideString(S)));
|
|
move(s^,p^,(length(WideString(s))+1)*sizeof(widechar)); // double #0 too
|
|
s:=p;
|
|
end;
|
|
|
|
{ alias for internal use }
|
|
Procedure fpc_WideStr_Incr_Ref (Var S : Pointer);[external name 'FPC_WIDESTR_INCR_REF'];
|
|
|
|
procedure fpc_WideStr_To_ShortStr (out res: ShortString;const S2 : WideString); [Public, alias: 'FPC_WIDESTR_TO_SHORTSTR'];compilerproc;
|
|
{
|
|
Converts a WideString to a ShortString;
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
temp : ansistring;
|
|
begin
|
|
res:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
begin
|
|
If Size>high(res) then
|
|
Size:=high(res);
|
|
widestringmanager.Wide2AnsiMoveProc(PWideChar(S2),temp,DefaultSystemCodePage,Size);
|
|
res:=temp;
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_ShortStr_To_WideStr (Const S2 : ShortString): WideString;compilerproc;
|
|
{
|
|
Converts a ShortString to a WideString;
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
begin
|
|
result:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
widestringmanager.Ansi2WideMoveProc(PAnsiChar(@S2[1]),DefaultSystemCodePage,result,Size);
|
|
end;
|
|
|
|
|
|
Function fpc_WideStr_To_AnsiStr (const S2 : WideString;cp : TSystemCodePage): AnsiString; compilerproc;
|
|
{
|
|
Converts a WideString to an AnsiString
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
begin
|
|
result:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
widestringmanager.Wide2AnsiMoveProc(PWideChar(Pointer(S2)),result,TranslatePlaceholderCP(cp),Size);
|
|
end;
|
|
|
|
|
|
Function fpc_AnsiStr_To_WideStr(Const S2 : RawByteString): WideString; compilerproc;
|
|
{
|
|
Converts an AnsiString to a WideString;
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
cp: TSystemCodePage;
|
|
begin
|
|
result:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
begin
|
|
cp:=TranslatePlaceholderCP(StringCodePage(S2));
|
|
widestringmanager.Ansi2WideMoveProc(PAnsiChar(S2),cp,result,Size);
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_PWideChar_To_WideStr(const p : pwidechar): widestring; compilerproc;
|
|
var
|
|
Size : SizeInt;
|
|
begin
|
|
result:='';
|
|
if p=nil then
|
|
exit;
|
|
Size := IndexWord(p^, -1, 0);
|
|
Setlength(result,Size); // zero-terminates
|
|
if Size>0 then
|
|
Move(p^,PWideChar(Pointer(result))^,Size*sizeof(WideChar));
|
|
end;
|
|
|
|
|
|
{ checked against the ansistring routine, 2001-05-27 (FK) }
|
|
Procedure fpc_WideStr_Assign (Var S1 : Pointer;S2 : Pointer);[Public,Alias:'FPC_WIDESTR_ASSIGN']; compilerproc;
|
|
{
|
|
Assigns S2 to S1 (S1:=S2), taking in account reference counts.
|
|
}
|
|
begin
|
|
if S1=S2 then exit;
|
|
if S2<>nil then
|
|
begin
|
|
{$ifdef MSWINDOWS}
|
|
if winwidestringalloc then
|
|
begin
|
|
if SysReAllocStringLen(S1, S2, Length(WideString(S2))) = 0 then
|
|
WideStringError;
|
|
end
|
|
else
|
|
{$endif MSWINDOWS}
|
|
begin
|
|
SetLength(WideString(S1),length(WideString(S2)));
|
|
move(s2^,s1^,(length(WideString(s1))+1)*sizeof(widechar));
|
|
end;
|
|
end
|
|
else
|
|
fpc_widestr_decr_ref (S1); // will set S1 to nil
|
|
end;
|
|
|
|
|
|
{ alias for internal use }
|
|
Procedure fpc_WideStr_Assign (Var S1 : Pointer;S2 : Pointer);[external name 'FPC_WIDESTR_ASSIGN'];
|
|
|
|
|
|
procedure fpc_WideStr_Concat (var DestS:Widestring;const S1,S2 : WideString); compilerproc;
|
|
Var
|
|
Size,Location : SizeInt;
|
|
same : boolean;
|
|
begin
|
|
{ only assign if s1 or s2 is empty }
|
|
if Length(S1)=0 then
|
|
begin
|
|
DestS:=s2;
|
|
exit;
|
|
end;
|
|
if Length(S2)=0 then
|
|
begin
|
|
DestS:=s1;
|
|
exit;
|
|
end;
|
|
Location:=Length(S1);
|
|
Size:=length(S2);
|
|
{ Use Pointer() typecasts to prevent extra conversion code }
|
|
if Pointer(DestS)=Pointer(S1) then
|
|
begin
|
|
same:=Pointer(S1)=Pointer(S2);
|
|
SetLength(DestS,Size+Location);
|
|
if same then
|
|
Move(Pointer(DestS)^,(Pointer(DestS)+Location*sizeof(WideChar))^,(Size)*sizeof(WideChar))
|
|
else
|
|
Move(Pointer(S2)^,(Pointer(DestS)+Location*sizeof(WideChar))^,(Size+1)*sizeof(WideChar));
|
|
end
|
|
else if Pointer(DestS)=Pointer(S2) then
|
|
begin
|
|
SetLength(DestS,Size+Location);
|
|
Move(Pointer(DestS)^,(Pointer(DestS)+Location*sizeof(WideChar))^,(Size+1)*sizeof(WideChar));
|
|
Move(Pointer(S1)^,Pointer(DestS)^,Location*sizeof(WideChar));
|
|
end
|
|
else
|
|
begin
|
|
DestS:='';
|
|
SetLength(DestS,Size+Location);
|
|
Move(Pointer(S1)^,Pointer(DestS)^,Location*sizeof(WideChar));
|
|
Move(Pointer(S2)^,(Pointer(DestS)+Location*sizeof(WideChar))^,(Size+1)*sizeof(WideChar));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure fpc_WideStr_Concat_multi (var DestS:Widestring;const sarr:array of Widestring); compilerproc;
|
|
Var
|
|
i : Longint;
|
|
p,pc : pointer;
|
|
Size,NewLen : SizeInt;
|
|
DestTmp : Widestring;
|
|
begin
|
|
if high(sarr)=0 then
|
|
begin
|
|
DestS:='';
|
|
exit;
|
|
end;
|
|
{ First calculate size of the result so we can do
|
|
a single call to SetLength() }
|
|
NewLen:=0;
|
|
for i:=low(sarr) to high(sarr) do
|
|
inc(NewLen,length(sarr[i]));
|
|
SetLength(DestTmp,NewLen);
|
|
pc:=pwidechar(DestTmp);
|
|
for i:=low(sarr) to high(sarr) do
|
|
begin
|
|
p:=pointer(sarr[i]);
|
|
if assigned(p) then
|
|
begin
|
|
Size:=length(widestring(p));
|
|
Move(p^,pc^,(Size+1)*sizeof(WideChar));
|
|
inc(pc,size*sizeof(WideChar));
|
|
end;
|
|
end;
|
|
DestS:=DestTmp;
|
|
end;
|
|
|
|
|
|
|
|
Function fpc_Char_To_WideStr(const c : AnsiChar): WideString; compilerproc;
|
|
{
|
|
Converts a AnsiChar to a WideString;
|
|
}
|
|
begin
|
|
widestringmanager.Ansi2WideMoveProc(@c,DefaultSystemCodePage,fpc_char_To_WideStr,1);
|
|
end;
|
|
|
|
|
|
Function fpc_UChar_To_WideStr(const c : WideChar): WideString; compilerproc;
|
|
{
|
|
Converts a WideChar to a WideString;
|
|
}
|
|
begin
|
|
Setlength (fpc_UChar_To_WideStr,1);
|
|
fpc_UChar_To_WideStr[1]:= c;
|
|
end;
|
|
|
|
|
|
Function fpc_PChar_To_WideStr(const p : PAnsiChar): WideString; compilerproc;
|
|
Var
|
|
L : SizeInt;
|
|
begin
|
|
if (not assigned(p)) or (p[0]=#0) Then
|
|
begin
|
|
fpc_pchar_to_widestr := '';
|
|
exit;
|
|
end;
|
|
l:=IndexChar(p^,-1,#0);
|
|
widestringmanager.Ansi2WideMoveProc(P,DefaultSystemCodePage,fpc_PChar_To_WideStr,l);
|
|
end;
|
|
|
|
|
|
Function fpc_CharArray_To_WideStr(const arr: array of AnsiChar; zerobased: boolean = true): WideString; compilerproc;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
if (zerobased) then
|
|
begin
|
|
if (arr[0]=#0) Then
|
|
begin
|
|
fpc_chararray_to_widestr := '';
|
|
exit;
|
|
end;
|
|
i:=IndexChar(arr,high(arr)+1,#0);
|
|
if i = -1 then
|
|
i := high(arr)+1;
|
|
end
|
|
else
|
|
i := high(arr)+1;
|
|
widestringmanager.Ansi2WideMoveProc(pansichar(@arr),DefaultSystemCodePage,fpc_CharArray_To_WideStr,i);
|
|
end;
|
|
|
|
|
|
procedure fpc_widestr_to_chararray(out res: array of AnsiChar; const src: WideString); compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
temp: ansistring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't dereference src if it can be nil (JM) }
|
|
if len > 0 then
|
|
widestringmanager.wide2ansimoveproc(pwidechar(@src[1]),temp,DefaultSystemCodePage,len);
|
|
len := length(temp);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
{$push}
|
|
{$r-}
|
|
move(temp[1],res[0],len);
|
|
fillchar(res[len],length(res)-len,0);
|
|
{$pop}
|
|
end;
|
|
|
|
|
|
procedure fpc_widestr_to_widechararray(out res: array of widechar; const src: WideString); compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
begin
|
|
len := length(src);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
{$push}
|
|
{$r-}
|
|
{ make sure we don't try to access element 1 of the ansistring if it's nil }
|
|
if len > 0 then
|
|
move(src[1],res[0],len*SizeOf(WideChar));
|
|
fillchar(res[len],(length(res)-len)*SizeOf(WideChar),0);
|
|
{$pop}
|
|
end;
|
|
|
|
|
|
|
|
Function fpc_WideStr_Compare(const S1,S2 : WideString): SizeInt;[Public,Alias : 'FPC_WIDESTR_COMPARE']; compilerproc;
|
|
{
|
|
Compares 2 WideStrings;
|
|
The result is
|
|
<0 if S1<S2
|
|
0 if S1=S2
|
|
>0 if S1>S2
|
|
}
|
|
Var
|
|
MaxI,Temp : SizeInt;
|
|
begin
|
|
if pointer(S1)=pointer(S2) then
|
|
begin
|
|
fpc_WideStr_Compare:=0;
|
|
exit;
|
|
end;
|
|
Maxi:=Length(S1);
|
|
temp:=Length(S2);
|
|
If MaxI>Temp then
|
|
MaxI:=Temp;
|
|
Temp:=CompareWord(S1[1],S2[1],MaxI);
|
|
if temp=0 then
|
|
temp:=Length(S1)-Length(S2);
|
|
fpc_WideStr_Compare:=Temp;
|
|
end;
|
|
|
|
Function fpc_WideStr_Compare_Equal(const S1,S2 : WideString): SizeInt;[Public,Alias : 'FPC_WIDESTR_COMPARE_EQUAL']; compilerproc;
|
|
{
|
|
Compares 2 WideStrings for equality only;
|
|
The result is
|
|
0 if S1=S2
|
|
<>0 if S1<>S2
|
|
}
|
|
Var
|
|
MaxI : SizeInt;
|
|
begin
|
|
if pointer(S1)=pointer(S2) then
|
|
exit(0);
|
|
Maxi:=Length(S1);
|
|
If MaxI<>Length(S2) then
|
|
exit(-1)
|
|
else
|
|
exit(CompareWord(S1[1],S2[1],MaxI));
|
|
end;
|
|
|
|
Procedure fpc_WideStr_RangeCheck(p: Pointer; index: SizeInt);[Public,Alias : 'FPC_WIDESTR_RANGECHECK']; compilerproc;
|
|
begin
|
|
if (p=nil) or (index>PWideRec(p-WideFirstOff)^.len div 2) or (Index<1) then
|
|
HandleErrorAddrFrameInd(201,get_pc_addr,get_frame);
|
|
end;
|
|
|
|
Procedure fpc_WideStr_ZeroBased_RangeCheck(p: Pointer; index: SizeInt);[Public,Alias : 'FPC_WIDESTR_ZEROBASED_RANGECHECK']; compilerproc;
|
|
begin
|
|
if (p=nil) or (index>=PWideRec(p-WideFirstOff)^.len div 2) or (Index<0) then
|
|
HandleErrorAddrFrameInd(201,get_pc_addr,get_frame);
|
|
end;
|
|
|
|
Procedure fpc_WideStr_SetLength(Var S : WideString; l : SizeInt);[Public,Alias : 'FPC_WIDESTR_SETLENGTH']; compilerproc;
|
|
{
|
|
Sets The length of WideString S to L.
|
|
Makes sure S is unique, and contains enough room.
|
|
}
|
|
Var
|
|
Temp : Pointer;
|
|
movelen: SizeInt;
|
|
begin
|
|
if (l>0) then
|
|
begin
|
|
if Pointer(S)=nil then
|
|
begin
|
|
{ Need a complete new widestring...}
|
|
Pointer(s):=NewWideString(l);
|
|
end
|
|
{ windows doesn't support reallocing widestrings, this code
|
|
is anyways subject to be removed because widestrings shouldn't be
|
|
ref. counted anymore (FK) }
|
|
else
|
|
if
|
|
{$ifdef MSWINDOWS}
|
|
not winwidestringalloc and
|
|
{$endif MSWINDOWS}
|
|
True
|
|
then
|
|
begin
|
|
Dec(Pointer(S),WideFirstOff);
|
|
if SizeUInt(L*sizeof(WideChar)+WideRecLen)>MemSize(Pointer(S)) then
|
|
reallocmem(pointer(S), L*sizeof(WideChar)+WideRecLen);
|
|
Inc(Pointer(S), WideFirstOff);
|
|
end
|
|
else
|
|
begin
|
|
{ Reallocation is needed... }
|
|
Temp:=Pointer(NewWideString(L));
|
|
if Length(S)>0 then
|
|
begin
|
|
if l < succ(length(s)) then
|
|
movelen := l
|
|
{ also move terminating null }
|
|
else
|
|
movelen := succ(length(s));
|
|
Move(Pointer(S)^,Temp^,movelen * Sizeof(WideChar));
|
|
end;
|
|
fpc_widestr_decr_ref(Pointer(S));
|
|
Pointer(S):=Temp;
|
|
end;
|
|
{ Force nil termination in case it gets shorter }
|
|
PWord(Pointer(S)+l*sizeof(WideChar))^:=0;
|
|
{$ifdef MSWINDOWS}
|
|
if not winwidestringalloc then
|
|
{$endif MSWINDOWS}
|
|
PWideRec(Pointer(S)-WideFirstOff)^.Len:=l*sizeof(WideChar);
|
|
end
|
|
else // length=0, deallocate the widestring
|
|
fpc_widestr_decr_ref (Pointer(S));
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Public functions, In interface.
|
|
*****************************************************************************}
|
|
|
|
Function fpc_widestr_Unique_func(Var S : WideString): Pointer; external name 'FPC_WIDESTR_UNIQUE';
|
|
|
|
|
|
Procedure UniqueString (Var S : WideString);{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
fpc_widestr_Unique_func(S);
|
|
end;
|
|
|
|
|
|
Function fpc_widestr_Unique(Var S : Pointer): Pointer; [Public,Alias : 'FPC_WIDESTR_UNIQUE']; compilerproc;
|
|
begin
|
|
pointer(result) := pointer(s);
|
|
end;
|
|
|
|
|
|
Function Fpc_WideStr_Copy (Const S : WideString; Index,Size : SizeInt) : WideString;compilerproc;
|
|
var
|
|
ResultAddress : Pointer;
|
|
begin
|
|
ResultAddress:=Nil;
|
|
dec(index);
|
|
if Index < 0 then
|
|
Index := 0;
|
|
{ Check Size. Accounts for Zero-length S, the double check is needed because
|
|
Size can be maxint and will get <0 when adding index }
|
|
if (Size>Length(S)) or
|
|
(Index+Size>Length(S)) then
|
|
Size:=Length(S)-Index;
|
|
If Size>0 then
|
|
begin
|
|
{ NewWideString won't return a nil pointer }
|
|
ResultAddress:=NewWideString(Size);
|
|
Move (PWideChar(S)[Index],ResultAddress^,Size*sizeof(WideChar));
|
|
PWideChar(ResultAddress+Size*sizeof(WideChar))^:=#0;
|
|
end;
|
|
fpc_widestr_decr_ref(Pointer(fpc_widestr_copy));
|
|
Pointer(fpc_widestr_Copy):=ResultAddress;
|
|
end;
|
|
|
|
|
|
Function Pos (Const Substr : WideString; Const Source : WideString; Offset : SizeInt = 1) : SizeInt;
|
|
var
|
|
i,MaxLen : SizeInt;
|
|
pc : pwidechar;
|
|
begin
|
|
Pos:=0;
|
|
if (Length(SubStr)>0) and (Offset>0) and (Offset<=Length(Source)) then
|
|
begin
|
|
MaxLen:=Length(source)-Length(SubStr)-(Offset-1);
|
|
i:=0;
|
|
pc:=@source[Offset];
|
|
while (i<=MaxLen) do
|
|
begin
|
|
inc(i);
|
|
if (SubStr[1]=pc^) and
|
|
(CompareWord(Substr[1],pc^,Length(SubStr))=0) then
|
|
begin
|
|
Pos:=Offset+i-1;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
{ Faster version for a widechar alone }
|
|
Function Pos (c : WideChar; Const s : WideString; Offset : Sizeint = 1) : SizeInt;
|
|
var
|
|
i: SizeInt;
|
|
pc : pwidechar;
|
|
begin
|
|
if (Offset>0) and (Offset<=length(s)) then
|
|
begin
|
|
pc:=@s[OffSet];
|
|
for i:=OffSet to length(s) do
|
|
begin
|
|
if pc^=c then
|
|
begin
|
|
pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
end;
|
|
pos:=0;
|
|
end;
|
|
|
|
{ DO NOT inline these! Inlining a managed typecast creates an implicit try..finally
|
|
block, which is significant bloat without any sensible speed improvement. }
|
|
Function Pos (c : WideChar; Const s : RawByteString; Offset : SizeInt = 1) : SizeInt;
|
|
begin
|
|
result:=Pos(c,WideString(s),Offset);
|
|
end;
|
|
|
|
|
|
Function Pos (const c : RawByteString; Const s : WideString;Offset : SizeInt = 1) : SizeInt;
|
|
begin
|
|
result:=Pos(WideString(c),s,Offset);
|
|
end;
|
|
|
|
|
|
Function Pos (const c : ShortString; Const s : WideString;Offset : SizeInt = 1) : SizeInt;
|
|
begin
|
|
result:=Pos(WideString(c),s,Offset);
|
|
end;
|
|
|
|
|
|
Function Pos (const c : WideString; Const s : RawByteString;Offset : SizeInt = 1) : SizeInt;
|
|
begin
|
|
result:=Pos(c,WideString(s),Offset);
|
|
end;
|
|
|
|
{ Faster version for a AnsiChar alone. Must be implemented because }
|
|
{ pos(c: ansichar; const s: shortstring) also exists, so otherwise }
|
|
{ using pos(AnsiChar,pansichar) will always call the shortstring version }
|
|
{ (exact match for first argument), also with $h+ (JM) }
|
|
Function Pos (c : AnsiChar; Const s : WideString; Offset : SizeInt = 1) : SizeInt;
|
|
var
|
|
i: SizeInt;
|
|
wc : widechar;
|
|
pc : pwidechar;
|
|
begin
|
|
if (Offset>0) and (Offset<=Length(S)) then
|
|
begin
|
|
wc:=c;
|
|
pc:=@s[OffSet];
|
|
for i:=OffSet to length(s) do
|
|
begin
|
|
if pc^=wc then
|
|
begin
|
|
pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
end;
|
|
pos:=0;
|
|
end;
|
|
|
|
|
|
|
|
Procedure fpc_widestr_delete(Var S : WideString; Index,Size: SizeInt);
|
|
Var
|
|
LS : SizeInt;
|
|
begin
|
|
LS:=Length(S);
|
|
if (Index>LS) or (Index<=0) or (Size<=0) then
|
|
exit;
|
|
|
|
{ (Size+Index) will overflow if Size=MaxInt. }
|
|
if Size>LS-Index then
|
|
Size:=LS-Index+1;
|
|
if Size<=LS-Index then
|
|
begin
|
|
Dec(Index);
|
|
Move(PWideChar(S)[Index+Size],PWideChar(S)[Index],(LS-Index-Size+1)*sizeof(WideChar));
|
|
end;
|
|
Setlength(s,LS-Size);
|
|
end;
|
|
|
|
|
|
Procedure fpc_widestr_insert(Const Source : WideString; Var S : WideString; Index : SizeInt);
|
|
var
|
|
Temp : WideString;
|
|
LS : SizeInt;
|
|
begin
|
|
If Length(Source)=0 then
|
|
exit;
|
|
if index <= 0 then
|
|
index := 1;
|
|
Ls:=Length(S);
|
|
if index > LS then
|
|
index := LS+1;
|
|
Dec(Index);
|
|
SetLength(Temp,Length(Source)+LS);
|
|
If Index>0 then
|
|
move (PWideChar(S)^,PWideChar(Temp)^,Index*sizeof(WideChar));
|
|
Move (PWideChar(Source)^,PWideChar(Temp)[Index],Length(Source)*sizeof(WideChar));
|
|
If (LS-Index)>0 then
|
|
Move(PWideChar(S)[Index],PWideChar(temp)[Length(Source)+index],(LS-Index)*sizeof(WideChar));
|
|
S:=Temp;
|
|
end;
|
|
|
|
|
|
function UpCase(const s : WideString) : WideString;
|
|
begin
|
|
result:=widestringmanager.UpperWideStringProc(s);
|
|
end;
|
|
|
|
|
|
Procedure fpc_setstring_widestr_pwidechar(Out S : WideString; Buf : PWideChar; Len : SizeInt); compilerproc;
|
|
begin
|
|
SetLength(S,Len);
|
|
If (Buf<>Nil) and (Len>0) then
|
|
Move (Buf[0],S[1],Len*sizeof(WideChar));
|
|
end;
|
|
|
|
|
|
Procedure fpc_setstring_widestr_pansichar(Out S : WideString; Buf : PAnsiChar; Len : SizeInt); compilerproc;
|
|
begin
|
|
If (Buf<>Nil) and (Len>0) then
|
|
widestringmanager.Ansi2WideMoveProc(Buf,DefaultSystemCodePage,S,Len)
|
|
else
|
|
SetLength(s,len);
|
|
end;
|
|
|
|
|
|
{$ifndef FPUNONE}
|
|
Function fpc_Val_Real_WideStr(Const S : WideString; out Code : ValSInt): ValReal; [public, alias:'FPC_VAL_REAL_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
fpc_Val_Real_WideStr := 0;
|
|
if length(S)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
Val(SS,fpc_Val_Real_WideStr,code);
|
|
end;
|
|
end;
|
|
{$endif}
|
|
|
|
function fpc_val_enum_widestr(str2ordindex:pointer;const s:widestring;out code:valsint):longint;compilerproc;
|
|
var
|
|
ss: ShortString;
|
|
begin
|
|
if length(s)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
ss:=ShortString(s);
|
|
val(ss,fpc_val_enum_widestr,code);
|
|
end;
|
|
end;
|
|
|
|
Function fpc_Val_Currency_WideStr(Const S : WideString; out Code : ValSInt): Currency; [public, alias:'FPC_VAL_CURRENCY_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
if length(S)>255 then
|
|
begin
|
|
fpc_Val_Currency_WideStr:=0;
|
|
code:=256;
|
|
end
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
Val(SS,fpc_Val_Currency_WideStr,code);
|
|
end;
|
|
end;
|
|
|
|
Function fpc_Val_UInt_WideStr ({$ifndef VER3_2}DestSize: SizeInt;{$endif VER3_2} Const S : WideString; out Code : ValSInt): ValUInt; [public, alias:'FPC_VAL_UINT_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
fpc_Val_UInt_WideStr:=0;
|
|
if length(S)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
Val(SS,fpc_Val_UInt_WideStr,code);
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_Val_SInt_WideStr (DestSize: SizeInt; Const S : WideString; out Code : ValSInt): ValSInt; [public, alias:'FPC_VAL_SINT_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
fpc_Val_SInt_WideStr:=0;
|
|
if length(S)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
fpc_Val_SInt_WideStr := int_Val_SInt_ShortStr(DestSize,SS,Code);
|
|
end;
|
|
end;
|
|
|
|
|
|
{$ifndef CPU64}
|
|
|
|
Function fpc_Val_qword_WideStr (Const S : WideString; out Code : ValSInt): qword; [public, alias:'FPC_VAL_QWORD_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
fpc_Val_qword_WideStr:=0;
|
|
if length(S)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
Val(SS,fpc_Val_qword_WideStr,Code);
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_Val_int64_WideStr (Const S : WideString; out Code : ValSInt): Int64; [public, alias:'FPC_VAL_INT64_WIDESTR']; compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
fpc_Val_int64_WideStr:=0;
|
|
if length(S)>255 then
|
|
code:=256
|
|
else
|
|
begin
|
|
SS:=ShortString(S);
|
|
Val(SS,fpc_Val_int64_WideStr,Code);
|
|
end;
|
|
end;
|
|
|
|
{$endif CPU64}
|
|
|
|
|
|
{$ifndef FPUNONE}
|
|
procedure fpc_WideStr_Float(d : ValReal;len,fr,rt : SizeInt;out s : WideString);compilerproc;
|
|
var
|
|
ss: ShortString;
|
|
begin
|
|
str_real(len,fr,d,treal_type(rt),ss);
|
|
s:=WideString(ss);
|
|
end;
|
|
{$endif}
|
|
|
|
procedure fpc_widestr_enum(ordinal,len:sizeint;typinfo,ord2strindex:pointer;out s:widestring);compilerproc;
|
|
var
|
|
ss: ShortString;
|
|
begin
|
|
fpc_shortstr_enum(ordinal,len,typinfo,ord2strindex,ss);
|
|
s:=WideString(ss);
|
|
end;
|
|
|
|
procedure fpc_widestr_bool(b : boolean;len:sizeint;out s:widestring);compilerproc;
|
|
var
|
|
ss: ShortString;
|
|
begin
|
|
fpc_shortstr_bool(b,len,ss);
|
|
s:=WideString(ss);
|
|
end;
|
|
|
|
procedure fpc_WideStr_Currency(c : Currency;len,fr : SizeInt;out s : WideString);compilerproc;
|
|
var
|
|
ss: ShortString;
|
|
begin
|
|
str(c:len:fr,ss);
|
|
s:=WideString(ss);
|
|
end;
|
|
|
|
Procedure fpc_WideStr_SInt(v : ValSint; Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
Str (v:Len,SS);
|
|
S:=WideString(SS);
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_UInt(v : ValUInt;Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
str(v:Len,SS);
|
|
S:=WideString(SS);
|
|
end;
|
|
|
|
|
|
{$ifndef CPU64}
|
|
|
|
Procedure fpc_WideStr_Int64(v : Int64; Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
Str(v:Len,SS);
|
|
S:=WideString(SS);
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_Qword(v : Qword;Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS: ShortString;
|
|
begin
|
|
str(v:Len,SS);
|
|
S:=WideString(SS);
|
|
end;
|
|
|
|
{$endif CPU64}
|
|
|
|
function UTF8Encode(const s : WideString) : RawByteString;
|
|
var
|
|
i : SizeInt;
|
|
hs : UTF8String;
|
|
begin
|
|
result:='';
|
|
if Length(s)=0 then
|
|
exit;
|
|
SetLength(hs,length(s)*3);
|
|
i:=UnicodeToUtf8(pansichar(hs),length(hs)+1,PWideChar(s),length(s));
|
|
if i>0 then
|
|
begin
|
|
SetLength(hs,i-1);
|
|
result:=hs;
|
|
end;
|
|
end;
|
|
|
|
|