{(*} (*------------------------------------------------------------------------------ Delphi Code formatter source code The Original Code is CodeWriter.pas, released April 2000. The Initial Developer of the Original Code is Anthony Steele. Portions created by Anthony Steele are Copyright (C) 1999-2000 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 ------------------------------------------------------------------------------*) {*)} unit CodeWriter; { AFS 28 November 1999 Writer - final output stage of code formattter AFS 22 July 2K - optimised by using a string to store tokens, and writing the file all at once at the end This is best in the usual-case scenario of a file < 10k AFS 8 Jan 2K divided into TCodeWriter and TFileWriter, so that another subclass, TIDEWriter, can be made with the same interface for the IDW pluggin Now called TCodeWriter not TWriter to avoid a name clash with Classes.Writer } {$I JcfGlobal.inc} interface uses SourceToken, ParseTreeNode; type TCodeWriter = class(TObject) private fiTokensWritten: integer; { properties } fcRoot: TParseTreeNode; { worker procs } procedure WriteTree(const pcRoot: TParseTreeNode); protected { working vars } fbBOF: boolean; fsDestText: string; // common to both procedure BeforeWrite; procedure WriteOut(const st: string); overload; procedure WriteOut(const pt: TSourceToken); overload; public constructor Create; virtual; destructor Destroy; override; procedure Clear; procedure Close; virtual; procedure WriteAll; property Root: TParseTreeNode Read fcRoot Write fcRoot; property BOF: boolean Read fbBOF; end; implementation const MAX_TOKENS = 100000; { TCodeWriter } constructor TCodeWriter.Create; begin inherited; fbBOF := True; fcRoot := nil; end; destructor TCodeWriter.Destroy; begin Close; inherited; end; procedure TCodeWriter.WriteOut(const st: string); begin //Assert(st <> #0); if (st = '') or (st = #0) then exit; fsDestText := fsDestText + st; fbBOF := False; end; procedure TCodeWriter.WriteOut(const pt: TSourceToken); begin WriteOut(pt.SourceCode); Inc(fiTokensWritten); end; procedure TCodeWriter.Close; begin Assert(False, ClassName + ' must override TCodeWriter.Close'); end; procedure TCodeWriter.Clear; begin fsDestText := ''; end; procedure TCodeWriter.BeforeWrite; begin end; procedure TCodeWriter.WriteAll; begin Assert(Root <> nil); WriteTree(Root); end; procedure TCodeWriter.WriteTree(const pcRoot: TParseTreeNode); var liLoop: integer; begin Assert(pcRoot <> nil); // is it a leaf with source? if (pcRoot is TSourceToken) then begin WriteOut(pcRoot as TSourceToken); end else begin // write out all child nodes for liLoop := 0 to pcRoot.ChildNodeCount - 1 do begin WriteTree(pcRoot.ChildNodes[liLoop]) end; end; end; end.