1 unit RemoveReturnsBeforeEnd; 2 3 {(*} 4 (*------------------------------------------------------------------------------ 5 Delphi Code formatter source code 6 7 The Original Code is RemoveReturnsBeforeEnd, released May 2003. 8 The Initial Developer of the Original Code is Anthony Steele. 9 Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele. 10 All Rights Reserved. 11 Contributor(s): Anthony Steele. 12 13 The contents of this file are subject to the Mozilla Public License Version 1.1 14 (the "License"). you may not use this file except in compliance with the License. 15 You may obtain a copy of the License at http://www.mozilla.org/NPL/ 16 17 Software distributed under the License is distributed on an "AS IS" basis, 18 WITHOUT WARRANTY OF ANY KIND, either express or implied. 19 See the License for the specific language governing rights and limitations 20 under the License. 21 22 Alternatively, the contents of this file may be used under the terms of 23 the GNU General Public License Version 2 or later (the "GPL") 24 See http://www.gnu.org/licenses/gpl.html 25 ------------------------------------------------------------------------------*) 26 {*)} 27 28 {$I JcfGlobal.inc} 29 30 interface 31 32 uses SourceToken, SwitchableVisitor; 33 34 type 35 TRemoveReturnsBeforeEnd = class(TSwitchableVisitor) 36 protected EnabledVisitSourceTokennull37 function EnabledVisitSourceToken(const pcNode: TObject): Boolean; override; 38 39 public 40 constructor Create; override; 41 IsIncludedInSettingsnull42 function IsIncludedInSettings: boolean; override; 43 end; 44 45 implementation 46 47 uses JcfSettings, Tokens, TokenUtils; 48 49 { TRemoveReturnsBeforeEnd } 50 51 constructor TRemoveReturnsBeforeEnd.Create; 52 begin 53 inherited; 54 end; 55 EnabledVisitSourceTokennull56function TRemoveReturnsBeforeEnd.EnabledVisitSourceToken(const pcNode: TObject): Boolean; 57 var 58 lcSourceToken: TSourceToken; 59 lcNext: TSourceToken; 60 lcTest: TSourceToken; 61 liReturnCount: integer; 62 liMaxReturns: integer; 63 begin 64 Result := False; 65 lcSourceToken := TSourceToken(pcNode); 66 67 if lcSourceToken.TokenType <> ttReturn then 68 exit; 69 70 if not InStatements(lcSourceToken) then 71 exit; 72 73 lcNext := lcSourceToken.NextTokenWithExclusions([ttWhiteSpace, ttReturn]); 74 75 if (lcNext = nil) or (lcNext.TokenType <> ttEnd) then 76 exit; 77 78 liReturnCount := 0; 79 liMaxReturns := Succ(FormattingSettings.Returns.MaxBlankLinesInSection); 80 lcTest := lcSourceToken; 81 82 { remove all returns up to that point (except one) } 83 while (lcTest <> lcNext) do 84 begin 85 if (lcTest.TokenType = ttReturn) then 86 begin 87 // allow two returns -> 1 blank line 88 Inc(liReturnCount); 89 if (liReturnCount > liMaxReturns) then 90 begin 91 BlankToken(lcTest); 92 end; 93 end; 94 lcTest := lcTest.NextToken; 95 end; 96 end; 97 IsIncludedInSettingsnull98function TRemoveReturnsBeforeEnd.IsIncludedInSettings: boolean; 99 begin 100 Result := FormattingSettings.Returns.RemoveBlockBlankLines; 101 end; 102 103 end. 104