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124 lines
3.0 KiB
ObjectPascal
124 lines
3.0 KiB
ObjectPascal
unit RebreakLines;
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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 RebreakLines, 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 29 December 2002
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Obfuscate process
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break lines at regular intervals
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}
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uses SwitchableVisitor;
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type
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TRebreakLines = class(TSwitchableVisitor)
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private
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xPos: integer;
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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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JcfUnicode,
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SourceToken, Tokens, FormatFlags, TokenUtils, ParseTreeNodeType;
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function CanBreakHere(const pt: TSourceToken): boolean;
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var
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lbInString: Boolean;
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lcNext: TSourceToken;
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begin
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lbInString := pt.HasParentNode(nLiteralString);
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if lbInString then
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begin
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lcNext := pt.NextToken;
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lbInString := (lcNext <> nil) and lcNext.HasParentNode(nLiteralString);
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end;
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Result := not lbInString;
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end;
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constructor TRebreakLines.Create;
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begin
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inherited;
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FormatFlags := FormatFlags + [eObfuscate];
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xPos := 1;
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end;
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function TRebreakLines.EnabledVisitSourceToken(const pcNode: TObject): Boolean;
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const
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LINE_LENGTH = 80;
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var
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lcToken: TSourceToken;
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lcNext, lcNew: TSourceToken;
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liLen: integer;
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begin
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Result := False;
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lcToken := TSourceToken(pcNode);
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if lcToken.TokenType = ttReturn then
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begin
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xPos := 0
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end
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else
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begin
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liLen := Length(lcToken.SourceCode);
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if ((XPos + liLen) > LINE_LENGTH) and CanBreakHere(lcToken) then
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begin
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{ no space directly after the new return }
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lcNext := lcToken.NextToken;
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if (lcNext <> nil) and (lcNext.TokenType = ttWhiteSpace) and
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(lcNext.SourceCode <> '') then
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BlankToken(lcNext);
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{ need a return? }
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if (lcNext <> nil) and (lcNext.TokenType <> ttReturn) then
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begin
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lcNew := TSourceToken.Create;
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lcNew.TokenType := ttReturn;
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lcNew.SourceCode := WideLineBreak;
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XPos := 0;
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InsertTokenAfter(lcToken, lcNew);
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end;
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end
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else
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// not at enhd of line yet
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xPos := xPos + liLen;
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end;
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end;
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end.
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