mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 23:30:39 +01:00
9cec910eb9
because on win64 the location of a function result can depend on its
size (so some chararrays had to be returned in registers and others
by reference, which means it's impossible to have a generic function
declaration which works in all cases) (mantis #8533)
* pad constant string assignments to chararrays with #0 up to the
length of the chararray for 2.0.x compatibility (fixes
tests/test/tarray3)
git-svn-id: trunk@6915 -
1709 lines
41 KiB
PHP
1709 lines
41 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/Unicode 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 :
|
|
|
|
@-8 : SizeInt for reference count;
|
|
@-4 : SizeInt 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
|
|
{$ifdef FPC_WINLIKEWIDESTRING}
|
|
Len : DWord;
|
|
{$else FPC_WINLIKEWIDESTRING}
|
|
Ref : SizeInt;
|
|
Len : SizeInt;
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
First : WideChar;
|
|
end;
|
|
|
|
Const
|
|
WideRecLen = SizeOf(TWideRec);
|
|
WideFirstOff = SizeOf(TWideRec)-sizeof(WideChar);
|
|
|
|
{
|
|
Default WideChar <-> Char conversion is to only convert the
|
|
lower 127 chars, all others are translated to spaces.
|
|
|
|
These routines can be overwritten for the Current Locale
|
|
}
|
|
|
|
procedure DefaultWide2AnsiMove(source:pwidechar;var dest:ansistring;len:SizeInt);
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
setlength(dest,len);
|
|
for i:=1 to len do
|
|
begin
|
|
if word(source^)<256 then
|
|
dest[i]:=char(word(source^))
|
|
else
|
|
dest[i]:='?';
|
|
inc(source);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure DefaultAnsi2WideMove(source:pchar;var dest:widestring;len:SizeInt);
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
setlength(dest,len);
|
|
for i:=1 to len do
|
|
begin
|
|
dest[i]:=widechar(byte(source^));
|
|
inc(source);
|
|
end;
|
|
end;
|
|
|
|
|
|
Procedure GetWideStringManager (Var Manager : TWideStringManager);
|
|
begin
|
|
manager:=widestringmanager;
|
|
end;
|
|
|
|
|
|
Procedure SetWideStringManager (Const New : TWideStringManager; Var Old: TWideStringManager);
|
|
begin
|
|
Old:=widestringmanager;
|
|
widestringmanager:=New;
|
|
end;
|
|
|
|
|
|
Procedure SetWideStringManager (Const New : TWideStringManager);
|
|
begin
|
|
widestringmanager:=New;
|
|
end;
|
|
|
|
(*
|
|
Procedure UniqueWideString(Var S : WideString); [Public,Alias : 'FPC_WIDESTR_UNIQUE'];
|
|
{
|
|
Make sure reference count of S is 1,
|
|
using copy-on-write semantics.
|
|
}
|
|
|
|
begin
|
|
end;
|
|
*)
|
|
|
|
|
|
{****************************************************************************
|
|
Internal functions, not in interface.
|
|
****************************************************************************}
|
|
|
|
|
|
procedure WideStringError;
|
|
begin
|
|
HandleErrorFrame(204,get_frame);
|
|
end;
|
|
|
|
|
|
{$ifdef WideStrDebug}
|
|
Procedure DumpWideRec(S : Pointer);
|
|
begin
|
|
If S=Nil then
|
|
Writeln ('String is nil')
|
|
Else
|
|
Begin
|
|
With PWideRec(S-WideFirstOff)^ do
|
|
begin
|
|
Write ('(Len:',len);
|
|
Writeln (' Ref: ',ref,')');
|
|
end;
|
|
end;
|
|
end;
|
|
{$endif}
|
|
|
|
|
|
Function NewWideString(Len : SizeInt) : Pointer;
|
|
{
|
|
Allocate a new WideString on the heap.
|
|
initialize it to zero length and reference count 1.
|
|
}
|
|
Var
|
|
P : Pointer;
|
|
begin
|
|
{$ifdef MSWINDOWS}
|
|
if winwidestringalloc then
|
|
P:=SysAllocStringLen(nil,Len)
|
|
else
|
|
{$endif MSWINDOWS}
|
|
begin
|
|
GetMem(P,Len*sizeof(WideChar)+WideRecLen);
|
|
If P<>Nil then
|
|
begin
|
|
PWideRec(P)^.Len:=Len*2; { Initial length }
|
|
{$ifndef FPC_WINLIKEWIDESTRING}
|
|
PWideRec(P)^.Ref:=1; { Initial Refcount }
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
PWideRec(P)^.First:=#0; { Terminating #0 }
|
|
inc(p,WideFirstOff); { Points to string now }
|
|
end
|
|
else
|
|
WideStringError;
|
|
end;
|
|
NewWideString:=P;
|
|
end;
|
|
|
|
|
|
Procedure DisposeWideString(Var S : Pointer);
|
|
{
|
|
Deallocates a WideString From the heap.
|
|
}
|
|
begin
|
|
If S=Nil then
|
|
exit;
|
|
{$ifndef MSWINDOWS}
|
|
Dec (S,WideFirstOff);
|
|
Freemem(S);
|
|
{$else MSWINDOWS}
|
|
if winwidestringalloc then
|
|
SysFreeString(S)
|
|
else
|
|
begin
|
|
Dec (S,WideFirstOff);
|
|
Freemem(S);
|
|
end;
|
|
{$endif MSWINDOWS}
|
|
S:=Nil;
|
|
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 string;
|
|
}
|
|
Type
|
|
pSizeInt = ^SizeInt;
|
|
{$ifndef FPC_WINLIKEWIDESTRING}
|
|
Var
|
|
l : pSizeInt;
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
Begin
|
|
{ Zero string }
|
|
if S=Nil then
|
|
exit;
|
|
{$ifndef FPC_WINLIKEWIDESTRING}
|
|
{ check for constant strings ...}
|
|
l:=@PWideRec(S-WideFirstOff)^.Ref;
|
|
if l^<0 then
|
|
exit;
|
|
|
|
{ declocked does a MT safe dec and returns true, if the counter is 0 }
|
|
if declocked(l^) then
|
|
{ Ref count dropped to zero ...
|
|
... remove }
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
DisposeWideString(S);
|
|
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;
|
|
{$ifdef FPC_WINLIKEWIDESTRING}
|
|
var
|
|
p : pointer;
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
Begin
|
|
If S=Nil then
|
|
exit;
|
|
{$ifdef FPC_WINLIKEWIDESTRING}
|
|
p:=NewWidestring(length(WideString(S)));
|
|
move(s^,p^,(length(WideString(s))+1)*sizeof(widechar)); // double #0 too
|
|
s:=p;
|
|
{$else FPC_WINLIKEWIDESTRING}
|
|
{ Let's be paranoid : Constant string ??}
|
|
If PWideRec(S-WideFirstOff)^.Ref<0 then
|
|
exit;
|
|
inclocked(PWideRec(S-WideFirstOff)^.Ref);
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
end;
|
|
|
|
{ alias for internal use }
|
|
Procedure fpc_WideStr_Incr_Ref (Var S : Pointer);[external name 'FPC_WIDESTR_INCR_REF'];
|
|
|
|
function fpc_WideStr_To_ShortStr (high_of_res: SizeInt;const S2 : WideString): shortstring;[Public, alias: 'FPC_WIDESTR_TO_SHORTSTR']; compilerproc;
|
|
{
|
|
Converts a WideString to a ShortString;
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
temp : ansistring;
|
|
begin
|
|
result:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
begin
|
|
If Size>high_of_res then
|
|
Size:=high_of_res;
|
|
widestringmanager.Wide2AnsiMoveProc(PWideChar(S2),temp,Size);
|
|
result:=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
|
|
begin
|
|
widestringmanager.Ansi2WideMoveProc(PChar(@S2[1]),result,Size);
|
|
{ Terminating Zero }
|
|
PWideChar(Pointer(fpc_ShortStr_To_WideStr)+Size*sizeof(WideChar))^:=#0;
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_WideStr_To_AnsiStr (const S2 : WideString): 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,Size);
|
|
end;
|
|
|
|
|
|
Function fpc_AnsiStr_To_WideStr (Const S2 : AnsiString): WideString; compilerproc;
|
|
{
|
|
Converts an AnsiString to a WideString;
|
|
}
|
|
Var
|
|
Size : SizeInt;
|
|
begin
|
|
result:='';
|
|
Size:=Length(S2);
|
|
if Size>0 then
|
|
widestringmanager.Ansi2WideMoveProc(PChar(S2),result,Size);
|
|
end;
|
|
|
|
|
|
Function fpc_PWideChar_To_AnsiStr(const p : pwidechar): ansistring; compilerproc;
|
|
var
|
|
Size : SizeInt;
|
|
begin
|
|
result:='';
|
|
if p=nil then
|
|
exit;
|
|
Size := IndexWord(p^, -1, 0);
|
|
if Size>0 then
|
|
widestringmanager.Wide2AnsiMoveProc(P,result,Size);
|
|
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);
|
|
if Size>0 then
|
|
begin
|
|
Move(p^,PWideChar(Pointer(result))^,Size*sizeof(WideChar));
|
|
{ Terminating Zero }
|
|
PWideChar(Pointer(result)+Size*sizeof(WideChar))^:=#0;
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_PWideChar_To_ShortStr(const p : pwidechar): shortstring; compilerproc;
|
|
var
|
|
Size : SizeInt;
|
|
temp: ansistring;
|
|
begin
|
|
result:='';
|
|
if p=nil then
|
|
exit;
|
|
Size := IndexWord(p^, $7fffffff, 0);
|
|
if Size>0 then
|
|
begin
|
|
widestringmanager.Wide2AnsiMoveProc(p,temp,Size);
|
|
result:=temp;
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
{ checked against the ansistring routine, 2001-05-27 (FK) }
|
|
Procedure fpc_WideStr_Assign (Var S1 : Pointer;S2 : Pointer);[Public,Alias:'FPC_WIDESTR_ASSIGN']; compilerproc;
|
|
{
|
|
Assigns S2 to S1 (S1:=S2), taking in account reference counts.
|
|
}
|
|
begin
|
|
{$ifdef FPC_WINLIKEWIDESTRING}
|
|
{ Decrease the reference count on the old S1 }
|
|
fpc_widestr_decr_ref (S1);
|
|
if S2<>nil then
|
|
begin
|
|
S1:=NewWidestring(length(WideString(S2)));
|
|
move(s2^,s1^,(length(WideString(s1))+1)*sizeof(widechar));
|
|
end
|
|
else
|
|
S1:=nil;
|
|
{$else FPC_WINLIKEWIDESTRING}
|
|
If S2<>nil then
|
|
If PWideRec(S2-WideFirstOff)^.Ref>0 then
|
|
inclocked(PWideRec(S2-WideFirstOff)^.ref);
|
|
{ Decrease the reference count on the old S1 }
|
|
fpc_widestr_decr_ref (S1);
|
|
s1:=s2;
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
end;
|
|
|
|
|
|
{ alias for internal use }
|
|
Procedure fpc_WideStr_Assign (Var S1 : Pointer;S2 : Pointer);[external name 'FPC_WIDESTR_ASSIGN'];
|
|
|
|
{$ifndef STR_CONCAT_PROCS}
|
|
|
|
function fpc_WideStr_Concat (const S1,S2 : WideString): WideString; compilerproc;
|
|
Var
|
|
Size,Location : SizeInt;
|
|
pc : pwidechar;
|
|
begin
|
|
{ only assign if s1 or s2 is empty }
|
|
if (S1='') then
|
|
begin
|
|
result:=s2;
|
|
exit;
|
|
end;
|
|
if (S2='') then
|
|
begin
|
|
result:=s1;
|
|
exit;
|
|
end;
|
|
Location:=Length(S1);
|
|
Size:=length(S2);
|
|
SetLength(result,Size+Location);
|
|
pc:=pwidechar(result);
|
|
Move(S1[1],pc^,Location*sizeof(WideChar));
|
|
inc(pc,location);
|
|
Move(S2[1],pc^,(Size+1)*sizeof(WideChar));
|
|
end;
|
|
|
|
|
|
function fpc_WideStr_Concat_multi (const sarr:array of Widestring): widestring; compilerproc;
|
|
Var
|
|
i : Longint;
|
|
p : pointer;
|
|
pc : pwidechar;
|
|
Size,NewSize : SizeInt;
|
|
begin
|
|
{ First calculate size of the result so we can do
|
|
a single call to SetLength() }
|
|
NewSize:=0;
|
|
for i:=low(sarr) to high(sarr) do
|
|
inc(Newsize,length(sarr[i]));
|
|
SetLength(result,NewSize);
|
|
pc:=pwidechar(result);
|
|
for i:=low(sarr) to high(sarr) do
|
|
begin
|
|
p:=pointer(sarr[i]);
|
|
if assigned(p) then
|
|
begin
|
|
Size:=length(widestring(p));
|
|
Move(pwidechar(p)^,pc^,(Size+1)*sizeof(WideChar));
|
|
inc(pc,size);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{$else STR_CONCAT_PROCS}
|
|
|
|
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 (S1='') then
|
|
begin
|
|
DestS:=s2;
|
|
exit;
|
|
end;
|
|
if (S2='') 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
|
|
lowstart,i : Longint;
|
|
p,pc : pointer;
|
|
Size,NewLen,
|
|
OldDestLen : SizeInt;
|
|
destcopy : widestring;
|
|
begin
|
|
if high(sarr)=0 then
|
|
begin
|
|
DestS:='';
|
|
exit;
|
|
end;
|
|
lowstart:=low(sarr);
|
|
if Pointer(DestS)=Pointer(sarr[lowstart]) then
|
|
inc(lowstart);
|
|
{ Check for another reuse, then we can't use
|
|
the append optimization }
|
|
for i:=lowstart to high(sarr) do
|
|
begin
|
|
if Pointer(DestS)=Pointer(sarr[i]) then
|
|
begin
|
|
{ if DestS is used somewhere in the middle of the expression,
|
|
we need to make sure the original string still exists after
|
|
we empty/modify DestS }
|
|
destcopy:=dests;
|
|
lowstart:=low(sarr);
|
|
break;
|
|
end;
|
|
end;
|
|
{ Start with empty DestS if we start with concatting
|
|
the first array element }
|
|
if lowstart=low(sarr) then
|
|
DestS:='';
|
|
OldDestLen:=length(DestS);
|
|
{ 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(DestS,NewLen);
|
|
{ Concat all strings, except the string we already
|
|
copied in DestS }
|
|
pc:=Pointer(DestS)+OldDestLen*sizeof(WideChar);
|
|
for i:=lowstart 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;
|
|
end;
|
|
|
|
{$endif STR_CONCAT_PROCS}
|
|
|
|
|
|
Function fpc_Char_To_WideStr(const c : WideChar): WideString; compilerproc;
|
|
{
|
|
Converts a Char to a WideString;
|
|
}
|
|
begin
|
|
if c = #0 then
|
|
{ result is automatically set to '' }
|
|
exit;
|
|
Setlength(fpc_Char_To_WideStr,1);
|
|
fpc_Char_To_WideStr[1]:=c;
|
|
{ Terminating Zero }
|
|
PWideChar(Pointer(fpc_Char_To_WideStr)+sizeof(WideChar))^:=#0;
|
|
end;
|
|
|
|
|
|
Function fpc_PChar_To_WideStr(const p : pchar): WideString; compilerproc;
|
|
Var
|
|
L : SizeInt;
|
|
begin
|
|
if (not assigned(p)) or (p[0]=#0) Then
|
|
{ result is automatically set to '' }
|
|
exit;
|
|
l:=IndexChar(p^,-1,#0);
|
|
widestringmanager.Ansi2WideMoveProc(P,fpc_PChar_To_WideStr,l);
|
|
end;
|
|
|
|
|
|
Function fpc_CharArray_To_WideStr(const arr: array of char; zerobased: boolean = true): WideString; compilerproc;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
if (zerobased) then
|
|
begin
|
|
if (arr[0]=#0) Then
|
|
{ result is automatically set to '' }
|
|
exit;
|
|
i:=IndexChar(arr,high(arr)+1,#0);
|
|
if i = -1 then
|
|
i := high(arr)+1;
|
|
end
|
|
else
|
|
i := high(arr)+1;
|
|
SetLength(fpc_CharArray_To_WideStr,i);
|
|
widestringmanager.Ansi2WideMoveProc (pchar(@arr),fpc_CharArray_To_WideStr,i);
|
|
end;
|
|
|
|
|
|
function fpc_WideCharArray_To_ShortStr(const arr: array of widechar; zerobased: boolean = true): shortstring;[public,alias:'FPC_WIDECHARARRAY_TO_SHORTSTR']; compilerproc;
|
|
var
|
|
l: longint;
|
|
index: longint;
|
|
len: byte;
|
|
temp: ansistring;
|
|
begin
|
|
l := high(arr)+1;
|
|
if l>=256 then
|
|
l:=255
|
|
else if l<0 then
|
|
l:=0;
|
|
if zerobased then
|
|
begin
|
|
index:=IndexWord(arr[0],l,0);
|
|
if (index < 0) then
|
|
len := l
|
|
else
|
|
len := index;
|
|
end
|
|
else
|
|
len := l;
|
|
widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),temp,len);
|
|
fpc_WideCharArray_To_ShortStr := temp;
|
|
end;
|
|
|
|
Function fpc_WideCharArray_To_AnsiStr(const arr: array of widechar; zerobased: boolean = true): AnsiString; compilerproc;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
if (zerobased) then
|
|
begin
|
|
i:=IndexWord(arr,high(arr)+1,0);
|
|
if i = -1 then
|
|
i := high(arr)+1;
|
|
end
|
|
else
|
|
i := high(arr)+1;
|
|
SetLength(fpc_WideCharArray_To_AnsiStr,i);
|
|
widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),fpc_WideCharArray_To_AnsiStr,i);
|
|
end;
|
|
|
|
Function fpc_WideCharArray_To_WideStr(const arr: array of widechar; zerobased: boolean = true): WideString; compilerproc;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
if (zerobased) then
|
|
begin
|
|
i:=IndexWord(arr,high(arr)+1,0);
|
|
if i = -1 then
|
|
i := high(arr)+1;
|
|
end
|
|
else
|
|
i := high(arr)+1;
|
|
SetLength(fpc_WideCharArray_To_WideStr,i);
|
|
Move(pwidechar(@arr)^, PWideChar(Pointer(@fpc_WideCharArray_To_WideStr[1]))^,i*sizeof(WideChar));
|
|
{ Terminating Zero }
|
|
PWideChar(Pointer(@fpc_WideCharArray_To_WideStr[1])+i*sizeof(WideChar))^:=#0;
|
|
end;
|
|
|
|
{$ifndef FPC_STRTOCHARARRAYPROC}
|
|
|
|
{ inside the compiler, the resulttype is modified to that of the actual }
|
|
{ chararray we're converting to (JM) }
|
|
function fpc_widestr_to_chararray(arraysize: SizeInt; const src: WideString): fpc_big_chararray;[public,alias: 'FPC_WIDESTR_TO_CHARARRAY']; 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,len);
|
|
len := length(temp);
|
|
if len > arraysize then
|
|
len := arraysize;
|
|
{$r-}
|
|
move(temp[1],fpc_widestr_to_chararray[0],len);
|
|
fillchar(fpc_widestr_to_chararray[len],arraysize-len,0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
{ inside the compiler, the resulttype is modified to that of the actual }
|
|
{ widechararray we're converting to (JM) }
|
|
function fpc_widestr_to_widechararray(arraysize: SizeInt; const src: WideString): fpc_big_widechararray;[public,alias: 'FPC_WIDESTR_TO_WIDECHARARRAY']; compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
begin
|
|
len := length(src);
|
|
if len > arraysize then
|
|
len := arraysize;
|
|
{$r-}
|
|
{ make sure we don't try to access element 1 of the ansistring if it's nil }
|
|
if len > 0 then
|
|
move(src[1],fpc_widestr_to_widechararray[0],len*SizeOf(WideChar));
|
|
fillchar(fpc_widestr_to_widechararray[len],(arraysize-len)*SizeOf(WideChar),0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
{ inside the compiler, the resulttype is modified to that of the actual }
|
|
{ chararray we're converting to (JM) }
|
|
function fpc_ansistr_to_widechararray(arraysize: SizeInt; const src: AnsiString): fpc_big_widechararray;[public,alias: 'FPC_ANSISTR_TO_WIDECHARARRAY']; compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
temp: widestring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't dereference src if it can be nil (JM) }
|
|
if len > 0 then
|
|
widestringmanager.ansi2widemoveproc(pchar(@src[1]),temp,len);
|
|
len := length(temp);
|
|
if len > arraysize then
|
|
len := arraysize;
|
|
|
|
{$r-}
|
|
move(temp[1],fpc_ansistr_to_widechararray[0],len*sizeof(widechar));
|
|
fillchar(fpc_ansistr_to_widechararray[len],(arraysize-len)*SizeOf(WideChar),0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
function fpc_shortstr_to_widechararray(arraysize: SizeInt; const src: ShortString): fpc_big_widechararray;[public,alias: 'FPC_SHORTSTR_TO_WIDECHARARRAY']; compilerproc;
|
|
var
|
|
len: longint;
|
|
temp : widestring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't access char 1 if length is 0 (JM) }
|
|
if len > 0 then
|
|
widestringmanager.ansi2widemoveproc(pchar(@src[1]),temp,len);
|
|
len := length(temp);
|
|
if len > arraysize then
|
|
len := arraysize;
|
|
{$r-}
|
|
move(temp[1],fpc_shortstr_to_widechararray[0],len*sizeof(widechar));
|
|
fillchar(fpc_shortstr_to_widechararray[len],(arraysize-len)*SizeOf(WideChar),0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
{$else ndef FPC_STRTOCHARARRAYPROC}
|
|
|
|
procedure fpc_widestr_to_chararray(out res: array of char; const src: WideString); compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
temp: ansistring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't dereference src if it can be nil (JM) }
|
|
if len > 0 then
|
|
widestringmanager.wide2ansimoveproc(pwidechar(@src[1]),temp,len);
|
|
len := length(temp);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
{$r-}
|
|
move(temp[1],res[0],len);
|
|
fillchar(res[len],length(res)-len,0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
procedure fpc_widestr_to_widechararray(out res: array of widechar; const src: WideString); compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
begin
|
|
len := length(src);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
{$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);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
procedure fpc_ansistr_to_widechararray(out res: array of widechar; const src: AnsiString); compilerproc;
|
|
var
|
|
len: SizeInt;
|
|
temp: widestring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't dereference src if it can be nil (JM) }
|
|
if len > 0 then
|
|
widestringmanager.ansi2widemoveproc(pchar(@src[1]),temp,len);
|
|
len := length(temp);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
|
|
{$r-}
|
|
move(temp[1],res[0],len*sizeof(widechar));
|
|
fillchar(res[len],(length(res)-len)*SizeOf(WideChar),0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
procedure fpc_shortstr_to_widechararray(out res: array of widechar; const src: ShortString); compilerproc;
|
|
var
|
|
len: longint;
|
|
temp : widestring;
|
|
begin
|
|
len := length(src);
|
|
{ make sure we don't access char 1 if length is 0 (JM) }
|
|
if len > 0 then
|
|
widestringmanager.ansi2widemoveproc(pchar(@src[1]),temp,len);
|
|
len := length(temp);
|
|
if len > length(res) then
|
|
len := length(res);
|
|
{$r-}
|
|
move(temp[1],res[0],len*sizeof(widechar));
|
|
fillchar(res[len],(length(res)-len)*SizeOf(WideChar),0);
|
|
{$ifdef RangeCheckWasOn}
|
|
{$r+}
|
|
{$endif}
|
|
end;
|
|
|
|
{$endif ndef FPC_STRTOCHARARRAYPROC}
|
|
|
|
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_CheckZero(p : pointer);[Public,Alias : 'FPC_WIDESTR_CHECKZERO']; compilerproc;
|
|
begin
|
|
if p=nil then
|
|
HandleErrorFrame(201,get_frame);
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_CheckRange(len,index : SizeInt);[Public,Alias : 'FPC_WIDESTR_RANGECHECK']; compilerproc;
|
|
begin
|
|
if (index>len) or (Index<1) then
|
|
HandleErrorFrame(201,get_frame);
|
|
end;
|
|
|
|
Procedure fpc_WideStr_SetLength(Var S : WideString; l : SizeInt);[Public,Alias : 'FPC_WIDESTR_SETLENGTH']; compilerproc;
|
|
{
|
|
Sets The length of string 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 string...}
|
|
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
|
|
{$ifndef FPC_WINLIKEWIDESTRING}
|
|
if
|
|
{$ifdef MSWINDOWS}
|
|
not winwidestringalloc and
|
|
{$endif MSWINDOWS}
|
|
(PWideRec(Pointer(S)-WideFirstOff)^.Ref = 1) then
|
|
begin
|
|
Dec(Pointer(S),WideFirstOff);
|
|
if L*sizeof(WideChar)+WideRecLen>MemSize(Pointer(S)) then
|
|
reallocmem(pointer(S), L*sizeof(WideChar)+WideRecLen);
|
|
Inc(Pointer(S), WideFirstOff);
|
|
end
|
|
else
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
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;
|
|
{$ifndef FPC_WINLIKEWIDESTRING}
|
|
PWideRec(Pointer(S)-WideFirstOff)^.Len:=l*sizeof(WideChar);
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
end
|
|
else
|
|
begin
|
|
{ Length=0 }
|
|
if Pointer(S)<>nil then
|
|
fpc_widestr_decr_ref (Pointer(S));
|
|
Pointer(S):=Nil;
|
|
end;
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Public functions, In interface.
|
|
*****************************************************************************}
|
|
|
|
function WideCharToString(S : PWideChar) : AnsiString;
|
|
begin
|
|
result:=WideCharLenToString(s,Length(WideString(s)));
|
|
end;
|
|
|
|
function StringToWideChar(const Src : AnsiString;Dest : PWideChar;DestSize : SizeInt) : PWideChar;
|
|
var
|
|
temp:widestring;
|
|
begin
|
|
widestringmanager.Ansi2WideMoveProc(PChar(Src),temp,Length(Src));
|
|
if Length(temp)<DestSize then
|
|
move(temp[1],Dest^,Length(temp)*SizeOf(WideChar))
|
|
else
|
|
move(temp[1],Dest^,(DestSize-1)*SizeOf(WideChar));
|
|
|
|
Dest[DestSize-1]:=#0;
|
|
|
|
result:=Dest;
|
|
|
|
end;
|
|
|
|
function WideCharLenToString(S : PWideChar;Len : SizeInt) : AnsiString;
|
|
begin
|
|
//SetLength(result,Len);
|
|
widestringmanager.Wide2AnsiMoveproc(S,result,Len);
|
|
end;
|
|
|
|
procedure WideCharLenToStrVar(Src : PWideChar;Len : SizeInt;out Dest : AnsiString);
|
|
begin
|
|
Dest:=WideCharLenToString(Src,Len);
|
|
end;
|
|
|
|
procedure WideCharToStrVar(S : PWideChar;out Dest : AnsiString);
|
|
begin
|
|
Dest:=WideCharToString(S);
|
|
end;
|
|
|
|
|
|
Function fpc_widestr_Unique(Var S : Pointer): Pointer; [Public,Alias : 'FPC_WIDESTR_UNIQUE']; compilerproc;
|
|
{$ifdef FPC_WINLIKEWIDESTRING}
|
|
begin
|
|
pointer(result) := pointer(s);
|
|
end;
|
|
{$else FPC_WINLIKEWIDESTRING}
|
|
{
|
|
Make sure reference count of S is 1,
|
|
using copy-on-write semantics.
|
|
}
|
|
Var
|
|
SNew : Pointer;
|
|
L : SizeInt;
|
|
begin
|
|
pointer(result) := pointer(s);
|
|
If Pointer(S)=Nil then
|
|
exit;
|
|
if PWideRec(Pointer(S)-WideFirstOff)^.Ref<>1 then
|
|
begin
|
|
L:=PWideRec(Pointer(S)-WideFirstOff)^.len div sizeof(WideChar);
|
|
SNew:=NewWideString (L);
|
|
Move (PWideChar(S)^,SNew^,(L+1)*sizeof(WideChar));
|
|
PWideRec(SNew-WideFirstOff)^.len:=L * sizeof(WideChar);
|
|
fpc_widestr_decr_ref (Pointer(S)); { Thread safe }
|
|
pointer(S):=SNew;
|
|
pointer(result):=SNew;
|
|
end;
|
|
end;
|
|
{$endif FPC_WINLIKEWIDESTRING}
|
|
|
|
|
|
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
|
|
If Index<0 Then
|
|
Index:=0;
|
|
ResultAddress:=Pointer(NewWideString (Size));
|
|
if ResultAddress<>Nil then
|
|
begin
|
|
Move (PWideChar(S)[Index],ResultAddress^,Size*sizeof(WideChar));
|
|
PWideRec(ResultAddress-WideFirstOff)^.Len:=Size*sizeof(WideChar);
|
|
PWideChar(ResultAddress+Size*sizeof(WideChar))^:=#0;
|
|
end;
|
|
end;
|
|
Pointer(fpc_widestr_Copy):=ResultAddress;
|
|
end;
|
|
|
|
|
|
Function Pos (Const Substr : WideString; Const Source : WideString) : SizeInt;
|
|
var
|
|
i,MaxLen : SizeInt;
|
|
pc : pwidechar;
|
|
begin
|
|
Pos:=0;
|
|
if Length(SubStr)>0 then
|
|
begin
|
|
MaxLen:=Length(source)-Length(SubStr);
|
|
i:=0;
|
|
pc:=@source[1];
|
|
while (i<=MaxLen) do
|
|
begin
|
|
inc(i);
|
|
if (SubStr[1]=pc^) and
|
|
(CompareWord(Substr[1],pc^,Length(SubStr))=0) then
|
|
begin
|
|
Pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
{ Faster version for a widechar alone }
|
|
Function Pos (c : WideChar; Const s : WideString) : SizeInt;
|
|
var
|
|
i: SizeInt;
|
|
pc : pwidechar;
|
|
begin
|
|
pc:=@s[1];
|
|
for i:=1 to length(s) do
|
|
begin
|
|
if pc^=c then
|
|
begin
|
|
pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
pos:=0;
|
|
end;
|
|
|
|
|
|
Function Pos (c : WideChar; Const s : AnsiString) : SizeInt;
|
|
var
|
|
i: SizeInt;
|
|
pc : pchar;
|
|
begin
|
|
pc:=@s[1];
|
|
for i:=1 to length(s) do
|
|
begin
|
|
if widechar(pc^)=c then
|
|
begin
|
|
pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
pos:=0;
|
|
end;
|
|
|
|
|
|
Function Pos (c : AnsiString; Const s : WideString) : SizeInt;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
result:=Pos(WideString(c),s);
|
|
end;
|
|
|
|
|
|
Function Pos (c : ShortString; Const s : WideString) : SizeInt;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
result:=Pos(WideString(c),s);
|
|
end;
|
|
|
|
|
|
Function Pos (c : WideString; Const s : AnsiString) : SizeInt;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
result:=Pos(c,WideString(s));
|
|
end;
|
|
|
|
{ Faster version for a char alone. Must be implemented because }
|
|
{ pos(c: char; const s: shortstring) also exists, so otherwise }
|
|
{ using pos(char,pchar) will always call the shortstring version }
|
|
{ (exact match for first argument), also with $h+ (JM) }
|
|
Function Pos (c : Char; Const s : WideString) : SizeInt;
|
|
var
|
|
i: SizeInt;
|
|
wc : widechar;
|
|
pc : pwidechar;
|
|
begin
|
|
wc:=c;
|
|
pc:=@s[1];
|
|
for i:=1 to length(s) do
|
|
begin
|
|
if pc^=wc then
|
|
begin
|
|
pos:=i;
|
|
exit;
|
|
end;
|
|
inc(pc);
|
|
end;
|
|
pos:=0;
|
|
end;
|
|
|
|
|
|
|
|
Procedure Delete (Var S : WideString; Index,Size: SizeInt);
|
|
Var
|
|
LS : SizeInt;
|
|
begin
|
|
If Length(S)=0 then
|
|
exit;
|
|
if index<=0 then
|
|
exit;
|
|
LS:=PWideRec(Pointer(S)-WideFirstOff)^.Len div sizeof(WideChar);
|
|
if (Index<=LS) and (Size>0) then
|
|
begin
|
|
UniqueString (S);
|
|
if Size+Index>LS then
|
|
Size:=LS-Index+1;
|
|
if Index+Size<=LS then
|
|
begin
|
|
Dec(Index);
|
|
Move(PWideChar(S)[Index+Size],PWideChar(S)[Index],(LS-Index+1)*sizeof(WideChar));
|
|
end;
|
|
Setlength(s,LS-Size);
|
|
end;
|
|
end;
|
|
|
|
|
|
Procedure 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);
|
|
Pointer(Temp) := NewWideString(Length(Source)+LS);
|
|
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 SetString (Out S : WideString; Buf : PWideChar; Len : SizeInt);
|
|
var
|
|
BufLen: SizeInt;
|
|
begin
|
|
SetLength(S,Len);
|
|
If (Buf<>Nil) and (Len>0) then
|
|
begin
|
|
BufLen := IndexWord(Buf^, Len+1, 0);
|
|
If (BufLen>0) and (BufLen < Len) then
|
|
Len := BufLen;
|
|
Move (Buf[0],S[1],Len*sizeof(WideChar));
|
|
PWideChar(Pointer(S)+Len*sizeof(WideChar))^:=#0;
|
|
end;
|
|
end;
|
|
|
|
|
|
Procedure SetString (Out S : WideString; Buf : PChar; Len : SizeInt);
|
|
var
|
|
BufLen: SizeInt;
|
|
begin
|
|
SetLength(S,Len);
|
|
If (Buf<>Nil) and (Len>0) then
|
|
begin
|
|
BufLen := IndexByte(Buf^, Len+1, 0);
|
|
If (BufLen>0) and (BufLen < Len) then
|
|
Len := BufLen;
|
|
widestringmanager.Ansi2WideMoveProc(Buf,S,Len);
|
|
//PWideChar(Pointer(S)+Len*sizeof(WideChar))^:=#0;
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_Val_Real_WideStr(Const S : WideString; out Code : ValSInt): ValReal; [public, alias:'FPC_VAL_REAL_WIDESTR']; compilerproc;
|
|
Var
|
|
SS : String;
|
|
begin
|
|
fpc_Val_Real_WideStr := 0;
|
|
if length(S) > 255 then
|
|
code := 256
|
|
else
|
|
begin
|
|
SS := S;
|
|
Val(SS,fpc_Val_Real_WideStr,code);
|
|
end;
|
|
end;
|
|
|
|
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:=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 : String;
|
|
begin
|
|
if length(S) > 255 then
|
|
begin
|
|
fpc_Val_Currency_WideStr:=0;
|
|
code := 256;
|
|
end
|
|
else
|
|
begin
|
|
SS := S;
|
|
Val(SS,fpc_Val_Currency_WideStr,code);
|
|
end;
|
|
end;
|
|
|
|
|
|
Function fpc_Val_UInt_WideStr (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 := 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 := 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 := 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 := S;
|
|
Val(SS,fpc_Val_int64_WideStr,Code);
|
|
end;
|
|
end;
|
|
|
|
{$endif CPU64}
|
|
|
|
|
|
procedure fpc_WideStr_Float(d : ValReal;len,fr,rt : SizeInt;out s : WideString);compilerproc;
|
|
var
|
|
ss : shortstring;
|
|
begin
|
|
str_real(len,fr,d,treal_type(rt),ss);
|
|
s:=ss;
|
|
end;
|
|
|
|
procedure fpc_widestr_enum(ordinal,len:sizeint;typinfo,ord2strindex:pointer;out s:widestring);compilerproc;
|
|
|
|
var ss:shortstring;
|
|
|
|
begin
|
|
fpc_shortstr_enum(ordinal,len,typinfo,ord2strindex,ss);
|
|
s:=ss;
|
|
end;
|
|
|
|
{$ifdef FPC_HAS_STR_CURRENCY}
|
|
procedure fpc_WideStr_Currency(c : Currency;len,fr : SizeInt;out s : WideString);compilerproc;
|
|
var
|
|
ss : shortstring;
|
|
begin
|
|
str(c:len:fr,ss);
|
|
s:=ss;
|
|
end;
|
|
{$endif FPC_HAS_STR_CURRENCY}
|
|
|
|
Procedure fpc_WideStr_SInt(v : ValSint; Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS : ShortString;
|
|
begin
|
|
Str (v:Len,SS);
|
|
S:=SS;
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_UInt(v : ValUInt;Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS : ShortString;
|
|
begin
|
|
str(v:Len,SS);
|
|
S:=SS;
|
|
end;
|
|
|
|
|
|
{$ifndef CPU64}
|
|
|
|
Procedure fpc_WideStr_Int64(v : Int64; Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS : ShortString;
|
|
begin
|
|
Str (v:Len,SS);
|
|
S:=SS;
|
|
end;
|
|
|
|
|
|
Procedure fpc_WideStr_Qword(v : Qword;Len : SizeInt; out S : WideString);compilerproc;
|
|
Var
|
|
SS : ShortString;
|
|
begin
|
|
str(v:Len,SS);
|
|
S:=SS;
|
|
end;
|
|
|
|
{$endif CPU64}
|
|
|
|
function UnicodeToUtf8(Dest: PChar; Source: PWideChar; MaxBytes: SizeInt): SizeInt;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
if assigned(Source) then
|
|
Result:=UnicodeToUtf8(Dest,MaxBytes,Source,IndexWord(Source^,-1,0))
|
|
else
|
|
Result:=0;
|
|
end;
|
|
|
|
|
|
function UnicodeToUtf8(Dest: PChar; MaxDestBytes: SizeUInt; Source: PWideChar; SourceChars: SizeUInt): SizeUInt;
|
|
var
|
|
i,j : SizeUInt;
|
|
w : word;
|
|
begin
|
|
result:=0;
|
|
if source=nil then
|
|
exit;
|
|
i:=0;
|
|
j:=0;
|
|
if assigned(Dest) then
|
|
begin
|
|
while (i<SourceChars) and (j<MaxDestBytes) do
|
|
begin
|
|
w:=word(Source[i]);
|
|
case w of
|
|
0..$7f:
|
|
begin
|
|
Dest[j]:=char(w);
|
|
inc(j);
|
|
end;
|
|
$80..$7ff:
|
|
begin
|
|
if j+1>=MaxDestBytes then
|
|
break;
|
|
Dest[j]:=char($c0 or (w shr 6));
|
|
Dest[j+1]:=char($80 or (w and $3f));
|
|
inc(j,2);
|
|
end;
|
|
else
|
|
begin
|
|
if j+2>=MaxDestBytes then
|
|
break;
|
|
Dest[j]:=char($e0 or (w shr 12));
|
|
Dest[j+1]:=char($80 or ((w shr 6)and $3f));
|
|
Dest[j+2]:=char($80 or (w and $3f));
|
|
inc(j,3);
|
|
end;
|
|
end;
|
|
inc(i);
|
|
end;
|
|
|
|
if j>MaxDestBytes-1 then
|
|
j:=MaxDestBytes-1;
|
|
|
|
Dest[j]:=#0;
|
|
end
|
|
else
|
|
begin
|
|
while i<SourceChars do
|
|
begin
|
|
case word(Source[i]) of
|
|
$0..$7f:
|
|
inc(j);
|
|
$80..$7ff:
|
|
inc(j,2);
|
|
else
|
|
inc(j,3);
|
|
end;
|
|
end;
|
|
end;
|
|
result:=j+1;
|
|
end;
|
|
|
|
|
|
function Utf8ToUnicode(Dest: PWideChar; Source: PChar; MaxChars: SizeInt): SizeInt;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
if assigned(Source) then
|
|
Result:=Utf8ToUnicode(Dest,MaxChars,Source,strlen(Source))
|
|
else
|
|
Result:=0;
|
|
end;
|
|
|
|
|
|
function Utf8ToUnicode(Dest: PWideChar; MaxDestChars: SizeUInt; Source: PChar; SourceBytes: SizeUInt): SizeUInt;
|
|
|
|
var
|
|
i,j : SizeUInt;
|
|
w: SizeUInt;
|
|
b : byte;
|
|
begin
|
|
if not assigned(Source) then
|
|
begin
|
|
result:=0;
|
|
exit;
|
|
end;
|
|
result:=SizeUInt(-1);
|
|
i:=0;
|
|
j:=0;
|
|
if assigned(Dest) then
|
|
begin
|
|
while (j<MaxDestChars) and (i<SourceBytes) do
|
|
begin
|
|
b:=byte(Source[i]);
|
|
w:=b;
|
|
inc(i);
|
|
// 2 or 3 bytes?
|
|
if b>=$80 then
|
|
begin
|
|
w:=b and $3f;
|
|
if i>=SourceBytes then
|
|
exit;
|
|
// 3 bytes?
|
|
if (b and $20)<>0 then
|
|
begin
|
|
b:=byte(Source[i]);
|
|
inc(i);
|
|
if i>=SourceBytes then
|
|
exit;
|
|
if (b and $c0)<>$80 then
|
|
exit;
|
|
w:=(w shl 6) or (b and $3f);
|
|
end;
|
|
b:=byte(Source[i]);
|
|
w:=(w shl 6) or (b and $3f);
|
|
if (b and $c0)<>$80 then
|
|
exit;
|
|
inc(i);
|
|
end;
|
|
Dest[j]:=WideChar(w);
|
|
inc(j);
|
|
end;
|
|
if j>=MaxDestChars then j:=MaxDestChars-1;
|
|
Dest[j]:=#0;
|
|
end
|
|
else
|
|
begin
|
|
while i<SourceBytes do
|
|
begin
|
|
b:=byte(Source[i]);
|
|
inc(i);
|
|
// 2 or 3 bytes?
|
|
if b>=$80 then
|
|
begin
|
|
if i>=SourceBytes then
|
|
exit;
|
|
// 3 bytes?
|
|
b := b and $3f;
|
|
if (b and $20)<>0 then
|
|
begin
|
|
b:=byte(Source[i]);
|
|
inc(i);
|
|
if i>=SourceBytes then
|
|
exit;
|
|
if (b and $c0)<>$80 then
|
|
exit;
|
|
end;
|
|
if (byte(Source[i]) and $c0)<>$80 then
|
|
exit;
|
|
inc(i);
|
|
end;
|
|
inc(j);
|
|
end;
|
|
end;
|
|
result:=j+1;
|
|
end;
|
|
|
|
|
|
function UTF8Encode(const s : WideString) : UTF8String;
|
|
var
|
|
i : SizeInt;
|
|
hs : UTF8String;
|
|
begin
|
|
result:='';
|
|
if s='' then
|
|
exit;
|
|
SetLength(hs,length(s)*3);
|
|
i:=UnicodeToUtf8(pchar(hs),length(hs)+1,PWideChar(s),length(s));
|
|
if i>0 then
|
|
begin
|
|
SetLength(hs,i-1);
|
|
result:=hs;
|
|
end;
|
|
end;
|
|
|
|
|
|
function UTF8Decode(const s : UTF8String): WideString;
|
|
var
|
|
i : SizeInt;
|
|
hs : WideString;
|
|
begin
|
|
result:='';
|
|
if s='' then
|
|
exit;
|
|
SetLength(hs,length(s));
|
|
i:=Utf8ToUnicode(PWideChar(hs),length(hs)+1,pchar(s),length(s));
|
|
if i>0 then
|
|
begin
|
|
SetLength(hs,i-1);
|
|
result:=hs;
|
|
end;
|
|
end;
|
|
|
|
|
|
function AnsiToUtf8(const s : ansistring): UTF8String;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
Result:=Utf8Encode(s);
|
|
end;
|
|
|
|
|
|
function Utf8ToAnsi(const s : UTF8String) : ansistring;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
Result:=Utf8Decode(s);
|
|
end;
|
|
|
|
|
|
function WideStringToUCS4String(const s : WideString) : UCS4String;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
setlength(result,length(s)+1);
|
|
for i:=1 to length(s) do
|
|
result[i-1]:=UCS4Char(s[i]);
|
|
result[length(s)]:=UCS4Char(0);
|
|
end;
|
|
|
|
|
|
function UCS4StringToWideString(const s : UCS4String) : WideString;
|
|
var
|
|
i : SizeInt;
|
|
begin
|
|
setlength(result,length(s)-1);
|
|
for i:=1 to length(s)-1 do
|
|
result[i]:=WideChar(s[i-1]);
|
|
end;
|
|
|
|
|
|
procedure unimplementedwidestring;
|
|
begin
|
|
HandleErrorFrame(215,get_frame);
|
|
end;
|
|
|
|
{$warnings off}
|
|
function GenericWideCase(const s : WideString) : WideString;
|
|
begin
|
|
unimplementedwidestring;
|
|
end;
|
|
|
|
|
|
function CompareWideString(const s1, s2 : WideString) : PtrInt;
|
|
begin
|
|
unimplementedwidestring;
|
|
end;
|
|
|
|
|
|
function CompareTextWideString(const s1, s2 : WideString): PtrInt;
|
|
begin
|
|
unimplementedwidestring;
|
|
end;
|
|
|
|
|
|
function CharLengthPChar(const Str: PChar): PtrInt;
|
|
begin
|
|
unimplementedwidestring;
|
|
end;
|
|
{$warnings on}
|
|
|
|
procedure initwidestringmanager;
|
|
begin
|
|
fillchar(widestringmanager,sizeof(widestringmanager),0);
|
|
{$ifndef HAS_WIDESTRINGMANAGER}
|
|
widestringmanager.Wide2AnsiMoveProc:=@defaultWide2AnsiMove;
|
|
widestringmanager.Ansi2WideMoveProc:=@defaultAnsi2WideMove;
|
|
widestringmanager.UpperWideStringProc:=@GenericWideCase;
|
|
widestringmanager.LowerWideStringProc:=@GenericWideCase;
|
|
{$endif HAS_WIDESTRINGMANAGER}
|
|
widestringmanager.CompareWideStringProc:=@CompareWideString;
|
|
widestringmanager.CompareTextWideStringProc:=@CompareTextWideString;
|
|
widestringmanager.CharLengthPCharProc:=@CharLengthPChar;
|
|
end;
|