[Mathlib-commitlog] mathlib/Source/MathLib/Functions/IO savevariables.java, NONE, 1.1 loadvariables.java, NONE, 1.1

[Stefan M. <st_...@us...>]

Update of /cvsroot/mathlib/mathlib/Source/MathLib/Functions/IO
In directory sc8-pr-cvs7.sourceforge.net:/tmp/cvs-serv3046/Source/MathLib/Functions/IO

Added Files:
	savevariables.java loadvariables.java 
Log Message:
moved loading and saving of variable into to external functions. Variables are not loaded/saved automotically at the start of JMathLib any more.

--- NEW FILE: loadvariables.java ---
package MathLib.Functions.IO;

import MathLib.Tokens.*;
import MathLib.Functions.ExternalFunction;
import java.io.*;

public class loadvariables extends ExternalFunction
{
	public OperandToken evaluate(Token[] operands)
	{

        if (getNArgIn(operands) > 1)
			throwMathLibException("loadvariables: number of arguments > 1");


        String file = "." + File.separator + "variables.mlf";
        
        if (getNArgIn(operands) == 1)
        {
            if (!(operands[0] instanceof CharToken)) 
                throwMathLibException("loadvariables: argument must be a string");

            file = ((CharToken)operands[0]).toString();
        }

        getVariables().loadVariables(file);
        
		return null;		

	} // end eval
}

/*
@GROUP
IO
@SYNTAX
loadvariables()
loadvariables("name.mlf")
@DOC
loads the variables from a serialized .mlf-file
@EXAMPLES
<programlisting>
loadvariables()
</programlisting>
@NOTES
The variables are written as a serialized stream of java objects. Therefor the
format of the .mlf-file is java-specific. The file is also specific to the
versions of MathLib token and classes.
@SEE
savevariables
*/


--- NEW FILE: savevariables.java ---
package MathLib.Functions.IO;

import MathLib.Tokens.*;
import MathLib.Functions.ExternalFunction;
import java.io.*;

public class savevariables extends ExternalFunction
{
	public OperandToken evaluate(Token[] operands)
	{

        if (getNArgIn(operands) > 1)
			throwMathLibException("savevariables: number of arguments > 1");


        String file = "." + File.separator + "variables.mlf";
        
        if (getNArgIn(operands) == 1)
        {
            if (!(operands[0] instanceof CharToken)) 
                throwMathLibException("savevariables: argument must be a string");

            file = ((CharToken)operands[0]).toString();
        }

        getVariables().saveVariables(file);
        
		return null;		

	} // end eval
}

/*
@GROUP
IO
@SYNTAX
savevariables()
savevariables("name.mlf")
@DOC
saves the variables from the current workspace into a serialized .mlf-file
@EXAMPLES
<programlisting>
savevariables()
</programlisting>
@NOTES
The variables are written as a serialized stream of java objects. Therefor the
format of the .mlf-file is java-specific. The file is also specific to the
versions of MathLib token and classes.
@SEE
loadvariables
*/