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109 lines
3.0 KiB
ObjectPascal
109 lines
3.0 KiB
ObjectPascal
unit RemoveComment;
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{(*}
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(*------------------------------------------------------------------------------
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Delphi Code formatter source code
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The Original Code is RemoveComment, released May 2003.
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The Initial Developer of the Original Code is Anthony Steele.
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Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
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All Rights Reserved.
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Contributor(s): Anthony Steele.
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The contents of this file are subject to the Mozilla Public License Version 1.1
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(the "License"). you may not use this file except in compliance with the License.
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You may obtain a copy of the License at http://www.mozilla.org/NPL/
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied.
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See the License for the specific language governing rights and limitations
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under the License.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 2 or later (the "GPL")
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See http://www.gnu.org/licenses/gpl.html
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------------------------------------------------------------------------------*)
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{*)}
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{$I JcfGlobal.inc}
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interface
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{ AFS 28 Dec 2002
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Obfuscate by removing comments
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}
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uses SwitchableVisitor;
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type
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TRemoveComment = class(TSwitchableVisitor)
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protected
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function EnabledVisitSourceToken(const pcNode: TObject): Boolean; override;
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public
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constructor Create; override;
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end;
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implementation
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uses
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JcfStringUtils,
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SourceToken, Tokens, ParseTreeNodeType, FormatFlags;
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function CommentMustStay(const pc: TSourceToken): boolean;
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var
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lsPrefix: string;
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begin
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Result := False;
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lsPrefix := StrLeft(pc.SourceCode, 2);
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if (lsPrefix = '{$') or (lsPrefix = '{%') then
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Result := True;
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{ all curly backets in the uses clause of a program/library def
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must be respected as they link files to dfms, com classes 'n stuff }
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if (pc.CommentStyle in CURLY_COMMENTS) and
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(pc.HasParentNode(TopOfProgramSections)) and pc.HasParentNode(UsesClauses) and
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pc.IsOnRightOf(UsesClauses, UsesWords) then
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Result := True;
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{ these comments are flags to the code format program, so leave them }
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if (pc.SourceCode = '{(*}') or (pc.SourceCode = '{*)}') then
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Result := True;
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// these are also flags
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if ((pc.CommentStyle = eDoubleSlash) and
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(StrLeft(pc.SourceCode, FORMAT_COMMENT_PREFIX_LEN) = FORMAT_COMMENT_PREFIX)) then
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Result := True;
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end;
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constructor TRemoveComment.Create;
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begin
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inherited;
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FormatFlags := FormatFlags + [eObfuscate];
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end;
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function TRemoveComment.EnabledVisitSourceToken(const pcNode: TObject): Boolean;
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var
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lcSourceToken: TSourceToken;
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begin
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Result := False;
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lcSourceToken := TSourceToken(pcNode);
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(* turn comment to space - may be needed for token sep
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e.g. may be for a :=b{foo}to{bar}baz
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*)
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if lcSourceToken.TokenType = ttComment then
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begin
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if not CommentMustStay(lcSourceToken) then
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begin
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lcSourceToken.TokenType := ttWhiteSpace;
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lcSourceToken.SourceCode := ' ';
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end;
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end;
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end;
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end.
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