/*
* AppendCmd.java --
*
*	Implements the built-in "append" Tcl command.
*
* Copyright (c) 1997 Cornell University.
* Copyright (c) 1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and
* redistribution of this file, and for a DISCLAIMER OF ALL
* WARRANTIES.
* 
* Included in SQLite3 port to C# for use in testharness only;  2008 Noah B Hart
*
* RCS @(#) $Id: AppendCmd.java,v 1.2 1999/07/28 01:59:49 mo Exp $
*
*/
using System;
namespace tcl.lang
{

  /*
  * This class implements the built-in "append" command in Tcl.
  */

  class AppendCmd : Command
  {
    public TCL.CompletionCode cmdProc( Interp interp, TclObject[] objv )
    {
      TclObject varValue = null;

      if ( objv.Length < 2 )
      {
        throw new TclNumArgsException( interp, 1, objv, "varName ?value value ...?" );
      }
      else if ( objv.Length == 2 )
      {
        interp.resetResult();
        interp.setResult( interp.getVar( objv[1], 0 ) );
      }
      else
      {
        for ( int i = 2; i < objv.Length; i++ )
        {
          varValue = interp.setVar( objv[1], objv[i], TCL.VarFlag.APPEND_VALUE );
        }

        if ( varValue != null )
        {
          interp.resetResult();
          interp.setResult( varValue );
        }
        else
        {
          interp.resetResult();
        }
      }
      return TCL.CompletionCode.RETURN;
    }
  } // end AppendCmd
}