File: sci_predef.c

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/*
 * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) 2006 - INRIA - Allan Cornet
 * 
 * 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 "gw_core.h"
#include "stack-c.h"
#include "localization.h"
#include "Scierror.h"
#include "predef.h"
#include "MALLOC.h"
/*--------------------------------------------------------------------------*/
int C2F(sci_predef)(char *fname,unsigned long fname_len)
{
	int previous_n_var_protected = 0;

	Rhs = Max(0, Rhs);

	CheckRhs(0,1);
	CheckLhs(0,1);

	previous_n_var_protected = getNumberPredefVariablesProtected();

	if (Rhs == 0)
	{
		int one = 1 ,l = 0;

		CreateVar(Rhs+1, MATRIX_OF_INTEGER_DATATYPE, &one, &one,&l);
		*istk(l) = (int) previous_n_var_protected;

		LhsVar(1) = Rhs + 1;
		C2F(putlhsvar)();
	}
	else /* Rhs == 1 */
	{
		int *out_values = NULL;
		int nout = 0 , mout = 0;
		int new_n_var_protected = 0;

		if ( VarType(1) == sci_matrix )
		{
			int m1 = 0, n1 = 0, l1 = 0;
			GetRhsVar(1, MATRIX_OF_DOUBLE_DATATYPE, &m1, &n1, &l1);
			if ( (m1 == n1) && (n1 == 1) )
			{
				double dn_var = *stk(l1);
				int n_var = (int) dn_var;

				if (dn_var != (double)n_var)
				{
					Scierror(999,_("%s: Wrong value for input argument #%d: A int expected.\n"),fname,1);
					return 0;
				}

				setNumberPredefVariablesProtected(n_var);
			}
			else
			{
				Scierror(999,_("%s: Wrong size for input argument #%d: A scalar expected.\n"),fname,1);
				return 0;
			}
		}
		else if ( VarType(1) == sci_strings )
		{	
			int m1 = 0, n1 = 0, l1 = 0;
			char *protectMode = NULL;

			GetRhsVar(1,STRING_DATATYPE,&m1,&n1,&l1);
			protectMode = cstk(l1);
			if (protectMode)
			{
				if ( ((strlen(protectMode) == 1 ) && (protectMode[0] == 'c')) ||
					(strcmp(protectMode,"clear") == 0) )
				{
					clearPredef();
				}
				else if ( ((strlen(protectMode) == 1 ) && (protectMode[0] == 'a')) ||
					(strcmp(protectMode,"all") == 0) )
				{
					predefAll();
				}
				else
				{
					Scierror(999,_("%s: Wrong value for input argument #%d: '%s' or '%s' expected.\n"),fname,1,"clear","all");
					return 0;
				}
			}
		}
		else
		{
			Scierror(999,_("%s: Wrong type for input argument #%d: A scalar or a string expected.\n"),fname,1);
			return 0;
		}

		new_n_var_protected = getNumberPredefVariablesProtected();

		out_values = (int*)MALLOC(sizeof(int)*2);
		out_values[0] = previous_n_var_protected;
		out_values[1] = new_n_var_protected;

		nout = 1 ; mout = 2;
		CreateVarFromPtr(Rhs+1,MATRIX_OF_INTEGER_DATATYPE, &nout, &mout, &out_values);
		if (out_values) {FREE(out_values); out_values = NULL;}

		LhsVar(1) = Rhs + 1;
		C2F(putlhsvar)();
	}
	return 0;
}
/*--------------------------------------------------------------------------*/