File: sci_TCL_UnsetVar.c

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/*
 *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 *  Copyright (C) 2005-2008 - INRIA - Allan CORNET
 *  Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
 *
 *  This file must be used under the terms of the CeCILL.
 *  This source file is licensed as described in the file COPYING, which
 *  you should have received as part of this distribution.  The terms
 *  are also available at
 *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
 *
 */
/*--------------------------------------------------------------------------*/
#include "TCL_Global.h"
#include "gw_tclsci.h"
#include "Scierror.h"
#include "localization.h"
#include "GlobalTclInterp.h"
/*--------------------------------------------------------------------------*/
int sci_TCL_UnsetVar(char *fname,unsigned long l)
{
  static int l1,n1,m1;
  static int l2,n2,m2;

  Tcl_Interp *TCLinterpreter=NULL;

  CheckRhs(1,2);
  CheckLhs(1,1);

  if (GetType(1) == sci_strings)
    {
      int *paramoutINT=(int*)MALLOC(sizeof(int));

      char *VarName=NULL;

      GetRhsVar(1,STRING_DATATYPE,&m1,&n1,&l1);
      VarName=cstk(l1);

      if (!existsGlobalInterp())
	{
	  Scierror(999,_("%s: Error main TCL interpreter not initialized.\n"),fname);
	  return 0;
	}

      if (Rhs==2)
	{
	  /* two arguments given - get a pointer on the slave interpreter */
	  if (GetType(2) == sci_strings)
		  {
			  GetRhsVar(2,STRING_DATATYPE,&m2,&n2,&l2);
			  TCLinterpreter=Tcl_GetSlave(getTclInterp(),cstk(l2));
			  releaseTclInterp();
			  if (TCLinterpreter==NULL)
				  {
					  Scierror(999,_("%s: No such slave interpreter.\n"),fname);
					  return 0;
				  }
		  }
	  else
	    {
	      Scierror(999,_("%s: Wrong type for input argument #%d: String expected.\n"), fname, 2);
	      return 0;
	    }
	}
      else
	{
	  /* only one argument given - use the main interpreter */
	  TCLinterpreter=getTclInterp();
	}

      if (Tcl_UnsetVar(TCLinterpreter, VarName, TCL_GLOBAL_ONLY) == TCL_ERROR)
	{
	  *paramoutINT=(int)(FALSE);
	}
      else
	{
	  *paramoutINT=(int)(TRUE);
	}

      n1=1;
      CreateVarFromPtr(Rhs+1,MATRIX_OF_BOOLEAN_DATATYPE, &n1, &n1, &paramoutINT);
      LhsVar(1)=Rhs+1;
      C2F(putlhsvar)();
      if (paramoutINT) {FREE(paramoutINT);paramoutINT=NULL;}

    }
  else
    {
      releaseTclInterp();
      Scierror(999,_("%s: Wrong type for input argument #%d: String expected.\n"),fname, 1);
      return 0;
    }
  releaseTclInterp();

  return 0;
}
/*--------------------------------------------------------------------------*/