| gvSIG desktop 1

package org.gvsig.operators;

import org.apache.bsf.BSFException;

import org.apache.bsf.BSFManager;

import org.gvsig.baseclasses.AbstractOperator;

import org.gvsig.baseclasses.IOperator;

import org.gvsig.expresions.EvalOperatorsTask;

import com.iver.andami.PluginServices;

/**

 * @author Vicente Caballero Navarro

 */

public class SubString extends AbstractOperator{

        public String addText(String s) {

                return toString()+"("+s+",,)";

        }

        public String toString() {

                return "subString";

        }

        public void eval(BSFManager interpreter) throws BSFException {

//                interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"String subString(String value1,int value2,int value3){return value1.substring(value2,value3);};");

                interpreter.exec(EvalOperatorsTask.JYTHON,null,-1,-1,"def subString(value1,value2,value3):\n" +

                                "  return value1[value2:value3]");

        }

        public boolean isEnable() {

                return (getType()==IOperator.STRING);

        }

        public String getTooltip(){

                return PluginServices.getText(this,"operator")+":  "+toString()+"("+PluginServices.getText(this,"parameter")+"1,"+PluginServices.getText(this,"parameter")+"2, "+PluginServices.getText(this,"parameter")+"3"+")"+"\n"+getDescription();

        }

        public String getDescription() {

        return PluginServices.getText(this, "parameter") + "1"+": " +

        PluginServices.getText(this, "string_value") + "\n"+

        PluginServices.getText(this, "parameter") + "2"+": " +

        PluginServices.getText(this, "numeric_value") + "\n"+

        PluginServices.getText(this, "parameter") + "3"+": " +

        PluginServices.getText(this, "numeric_value") + "\n"+

        PluginServices.getText(this, "returns") + ": " +

        PluginServices.getText(this, "string_value") + "\n" +

        PluginServices.getText(this, "description") + ": " +

        "Returns a new string that is a substring of parameter1.\n" +

        "The substring begins at the specified parameter2 and extends to the character at index parameter3 - 1.\n" +

        "Thus the length of the substring is endIndex-beginIndex.";

    }

}