//

// Copyright (C) 2001-2023 Graeme Walker <graeme_walker@users.sourceforge.net>

// 

// Copying and distribution of this file, with or without modification,

// are permitted in any medium without royalty provided the copyright

// notice and this notice are preserved.  This file is offered as-is,

// without any warranty.

// ===

//

// emailrelay-edit-content.js

//

// An example "--filter" script for Windows that edits the message's content

// file.

//

// In this example every "teh" is changed to "the".

//

try

{

	// parse the command-line to get the content filename

	var content = WScript.Arguments(0) ;



	// open the content file

	var fs = WScript.CreateObject( "Scripting.FileSystemObject" ) ;

	var in_ = fs.OpenTextFile( content , 1 , false ) ;



	// create the new content file

	var out_ = fs.OpenTextFile( content + ".tmp" , 8 , true ) ;



	// read the headers

	while( !in_.AtEndOfStream )

	{

		var line = in_.ReadLine() ;

		out_.WriteLine( line ) ;

		if( line === "" )

			break ;

	}



	// read and edit the body

	var re = new RegExp( "\\bteh\\b" , "gi" ) ;

	while( !in_.AtEndOfStream )

	{

		var line = in_.ReadLine() ;

		line = line.replace( re , "the" ) ;

		out_.WriteLine( line ) ;

	}



	// replace the content file

	in_.Close() ;

	out_.Close() ;

	fs.DeleteFile( content ) ;

	fs.MoveFile( content + ".tmp" , content ) ;



	// successful exit

	WScript.Quit( 0 ) ;

}

catch( e )

{

	// report errors using the special <<...>> markers

	WScript.StdOut.WriteLine( "<<edit failed>>" ) ;

	WScript.StdOut.WriteLine( "<<" + e + ">>" ) ;

	WScript.Quit( 1 ) ;

}

