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unit RemoveReturnsBeforeEnd;
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is RemoveReturnsBeforeEnd, 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 SourceToken, SwitchableVisitor;
type
TRemoveReturnsBeforeEnd = class(TSwitchableVisitor)
protected
function EnabledVisitSourceToken(const pcNode: TObject): Boolean; override;
public
constructor Create; override;
function IsIncludedInSettings: boolean; override;
end;
implementation
uses JcfSettings, Tokens, TokenUtils;
{ TRemoveReturnsBeforeEnd }
constructor TRemoveReturnsBeforeEnd.Create;
begin
inherited;
end;
function TRemoveReturnsBeforeEnd.EnabledVisitSourceToken(const pcNode: TObject): Boolean;
var
lcSourceToken: TSourceToken;
lcNext: TSourceToken;
lcTest: TSourceToken;
liReturnCount: integer;
liMaxReturns: integer;
begin
Result := False;
lcSourceToken := TSourceToken(pcNode);
if lcSourceToken.TokenType <> ttReturn then
exit;
if not InStatements(lcSourceToken) then
exit;
lcNext := lcSourceToken.NextTokenWithExclusions([ttWhiteSpace, ttReturn]);
if (lcNext = nil) or (lcNext.TokenType <> ttEnd) then
exit;
liReturnCount := 0;
liMaxReturns := 2;
lcTest := lcSourceToken;
{ remove all returns up to that point (except one) }
while (lcTest <> lcNext) do
begin
if (lcTest.TokenType = ttReturn) then
begin
// allow two returns -> 1 blank line
Inc(liReturnCount);
if (liReturnCount > liMaxReturns) then
begin
BlankToken(lcTest);
end;
end;
lcTest := lcTest.NextToken;
end;
end;
function TRemoveReturnsBeforeEnd.IsIncludedInSettings: boolean;
begin
Result := FormattingSettings.Returns.RemoveBlockBlankLines;
end;
end.
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