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* insertlistbefore added

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This commit is contained in:
peter 2004-10-04 20:43:28 +00:00
parent ef7ae0eab1
commit ec720a5800
1 changed files with 35 additions and 1 deletions
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36
compiler/cclasses.pas
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@ -143,6 +143,8 @@ type
function GetLast:TLinkedListItem; function GetLast:TLinkedListItem;
{ inserts another List at the begin and make this List empty } { inserts another List at the begin and make this List empty }
procedure insertList(p : TLinkedList); procedure insertList(p : TLinkedList);
{ inserts another List before the provided item and make this List empty }
procedure insertListBefore(Item:TLinkedListItem;p : TLinkedList);
{ inserts another List after the provided item and make this List empty } { inserts another List after the provided item and make this List empty }
procedure insertListAfter(Item:TLinkedListItem;p : TLinkedList); procedure insertListAfter(Item:TLinkedListItem;p : TLinkedList);
{ concats another List at the end and make this List empty } { concats another List at the end and make this List empty }
@ -966,6 +968,35 @@ end;
end; end;
procedure TLinkedList.insertListBefore(Item:TLinkedListItem;p : TLinkedList);
begin
{ empty List ? }
if (p.FFirst=nil) then
exit;
if (Item=nil) then
begin
{ Insert at begin }
InsertList(p);
exit;
end
else
begin
p.FLast.Next:=Item;
p.FFirst.Previous:=Item.Previous;
if assigned(Item.Previous) then
Item.Previous.Next:=p.FFirst
else
FFirst:=p.FFirst;
Item.Previous:=p.FLast;
inc(FCount,p.FCount);
end;
{ p becomes empty }
p.FFirst:=nil;
p.Flast:=nil;
p.FCount:=0;
end;
procedure TLinkedList.insertListAfter(Item:TLinkedListItem;p : TLinkedList); procedure TLinkedList.insertListAfter(Item:TLinkedListItem;p : TLinkedList);
begin begin
{ empty List ? } { empty List ? }
@ -2325,7 +2356,10 @@ end;
end. end.
{ {
$Log$ $Log$
Revision 1.36 2004-09-13 20:26:26 peter Revision 1.37 2004-10-04 20:43:28 peter
* insertlistbefore added
Revision 1.36 2004/09/13 20:26:26 peter
* stringlist.find case insensitive * stringlist.find case insensitive
Revision 1.35 2004/06/20 08:55:28 florian Revision 1.35 2004/06/20 08:55:28 florian