lazarus/components/jcf2/Process/VisitStripEmptySpace.pas

81 lines
2.2 KiB
ObjectPascal

unit VisitStripEmptySpace;
{ AFS 7 March 2003
needed after SpaceBeforeColon
It is possible that some tokens will be spaces
with sourcecode = '' null/empty string
discared these
}
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is VisitStripEmptySpace, released May 2003.
The Initial Developer of the Original Code is Anthony Steele.
Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
All Rights Reserved.
Contributor(s): Anthony Steele.
The contents of this file are subject to the Mozilla Public License Version 1.1
(the "License"). you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.mozilla.org/NPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied.
See the License for the specific language governing rights and limitations
under the License.
Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 or later (the "GPL")
See http://www.gnu.org/licenses/gpl.html
------------------------------------------------------------------------------*)
{*)}
{$I JcfGlobal.inc}
interface
uses BaseVisitor;
type
TVisitStripEmptySpace = class(TBaseTreeNodeVisitor)
public
function VisitSourceToken(const pcToken: TObject): Boolean; override;
end;
implementation
uses SourceToken, Tokens;
function TVisitStripEmptySpace.VisitSourceToken(const pcToken: TObject): Boolean;
var
lcSourceToken, lcNext: TSourceToken;
begin
Result := False;
lcSourceToken := TSourceToken(pcToken);
if (lcSourceToken <> nil) and (lcSourceToken.TokenType = ttWhiteSpace) then
begin
{ remove }
if (lcSourceToken.SourceCode = '') then
begin
lcSourceToken.Free;
Result := True;
end
else
begin
lcNext := lcSourceToken.NextToken;
{ consolidate }
if (lcNext <> nil) and (lcNext.TokenType = ttWhiteSpace) then
begin
lcNext.SourceCode := lcNext.SourceCode + lcSourceToken.SourceCode;
lcSourceToken.Free;
Result := True;
end;
end;
end;
end;
end.