elparser.java

workflow first jbpm

/* Generated By:JavaCC: Do not edit this line. ELParser.java */
package org.jbpm.jpdl.el.parser;

import org.jbpm.jpdl.el.impl.*;

import java.util.ArrayList;
import java.util.List;

/**
 * Generated EL parser.
 * 
 * @author Nathan Abramson
 * @author Shawn Bayern
 */

public class ELParser implements ELParserConstants {

  public static void main(String args[])
       throws ParseException
  {
    ELParser parser = new ELParser (System.in);
    parser.ExpressionString ();
  }

/*****************************************
 * GRAMMAR PRODUCTIONS *
 *****************************************/

/**
 *
 * Returns a String if the expression string is a single String, an
 * Expression if the expression string is a single Expression, an
 * ExpressionString if it's a mixture of both.
 **/
  final public Object ExpressionString() throws ParseException {
  Object ret = "";
  List elems = null;
  Object elem;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case NON_EXPRESSION_TEXT:
      ret = AttrValueString();
      break;
    case START_EXPRESSION:
      ret = AttrValueExpression();
      break;
    default:
      jj_la1[0] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    label_1:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case NON_EXPRESSION_TEXT:
      case START_EXPRESSION:
        ;
        break;
      default:
        jj_la1[1] = jj_gen;
        break label_1;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case NON_EXPRESSION_TEXT:
        elem = AttrValueString();
        break;
      case START_EXPRESSION:
        elem = AttrValueExpression();
        break;
      default:
        jj_la1[2] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
       if (elems == null) {
         elems = new ArrayList ();
         elems.add (ret);
       }
       elems.add (elem);
    }
    if (elems != null) {
      ret = new ExpressionString (elems.toArray ());
    }
    {if (true) return ret;}
    throw new Error("Missing return statement in function");
  }

  final public String AttrValueString() throws ParseException {
  ELToken t;
    t = jj_consume_token(NON_EXPRESSION_TEXT);
    {if (true) return t.image;}
    throw new Error("Missing return statement in function");
  }

  final public Expression AttrValueExpression() throws ParseException {
  Expression exp;
    jj_consume_token(START_EXPRESSION);
    exp = Expression();
    jj_consume_token(END_EXPRESSION);
     {if (true) return exp;}
    throw new Error("Missing return statement in function");
  }

  final public Expression Expression() throws ParseException {
  Expression ret;
    if (jj_2_1(2147483647)) {
      ret = ConditionalExpression();
    } else {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case INTEGER_LITERAL:
      case FLOATING_POINT_LITERAL:
      case STRING_LITERAL:
      case TRUE:
      case FALSE:
      case NULL:
      case LPAREN:
      case MINUS:
      case NOT1:
      case NOT2:
      case EMPTY:
      case IDENTIFIER:
        ret = OrExpression();
        break;
      default:
        jj_la1[3] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
    }
    {if (true) return ret;}
    throw new Error("Missing return statement in function");
  }

  final public Expression OrExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = AndExpression();
    label_2:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case OR1:
      case OR2:
        ;
        break;
      default:
        jj_la1[4] = jj_gen;
        break label_2;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case OR1:
        jj_consume_token(OR1);
        break;
      case OR2:
        jj_consume_token(OR2);
        break;
      default:
        jj_la1[5] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
                        operator = OrOperator.SINGLETON;
      expression = AndExpression();
        if (operators == null) {
          operators = new ArrayList ();
          expressions = new ArrayList ();
        }
        operators.add (operator);
        expressions.add (expression);
    }
    if (operators != null) {
      {if (true) return new BinaryOperatorExpression (startExpression,
                                           operators,
                                           expressions);}
    }
    else {
      {if (true) return startExpression;}
    }
    throw new Error("Missing return statement in function");
  }

  final public Expression AndExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = EqualityExpression();
    label_3:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case AND1:
      case AND2:
        ;
        break;
      default:
        jj_la1[6] = jj_gen;
        break label_3;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case AND1:
        jj_consume_token(AND1);
        break;
      case AND2:
        jj_consume_token(AND2);
        break;
      default:
        jj_la1[7] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
                          operator = AndOperator.SINGLETON;
      expression = EqualityExpression();
        if (operators == null) {
          operators = new ArrayList ();
          expressions = new ArrayList ();
        }
        operators.add (operator);
        expressions.add (expression);
    }
    if (operators != null) {
      {if (true) return new BinaryOperatorExpression (startExpression,
                                           operators,
                                           expressions);}
    }
    else {
      {if (true) return startExpression;}
    }
    throw new Error("Missing return statement in function");
  }

  final public Expression EqualityExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = RelationalExpression();
    label_4:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case EQ1:
      case EQ2:
      case NE1:
      case NE2:
        ;
        break;
      default:
        jj_la1[8] = jj_gen;
        break label_4;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case EQ1:
      case EQ2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case EQ1:
          jj_consume_token(EQ1);
          break;
        case EQ2:
          jj_consume_token(EQ2);
          break;
        default:
          jj_la1[9] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                        operator = EqualsOperator.SINGLETON;
        break;
      case NE1:
      case NE2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case NE1:
          jj_consume_token(NE1);
          break;
        case NE2:
          jj_consume_token(NE2);
          break;
        default:
          jj_la1[10] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                          operator = NotEqualsOperator.SINGLETON;
        break;
      default:
        jj_la1[11] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      expression = RelationalExpression();
        if (operators == null) {
          operators = new ArrayList ();
          expressions = new ArrayList ();
        }
        operators.add (operator);
        expressions.add (expression);
    }
    if (operators != null) {
      {if (true) return new BinaryOperatorExpression (startExpression,
                                           operators,
                                           expressions);}
    }
    else {
      {if (true) return startExpression;}
    }
    throw new Error("Missing return statement in function");
  }

  final public Expression RelationalExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = AddExpression();
    label_5:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case GT1:
      case GT2:
      case LT1:
      case LT2:
      case LE1:
      case LE2:
      case GE1:
      case GE2:
        ;
        break;
      default:
        jj_la1[12] = jj_gen;
        break label_5;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case LT1:
      case LT2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case LT1:
          jj_consume_token(LT1);
          break;
        case LT2:
          jj_consume_token(LT2);
          break;
        default:
          jj_la1[13] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                        operator = LessThanOperator.SINGLETON;
        break;
      case GT1:
      case GT2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case GT1:
          jj_consume_token(GT1);
          break;
        case GT2:
          jj_consume_token(GT2);
          break;
        default:
          jj_la1[14] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                          operator = GreaterThanOperator.SINGLETON;
        break;
      case GE1:
      case GE2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case GE1:
          jj_consume_token(GE1);
          break;
        case GE2:
          jj_consume_token(GE2);
          break;
        default:
          jj_la1[15] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                          operator = GreaterThanOrEqualsOperator.SINGLETON;
        break;
      case LE1:
      case LE2:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case LE1:
          jj_consume_token(LE1);
          break;
        case LE2:
          jj_consume_token(LE2);
          break;
        default:
          jj_la1[16] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
                          operator = LessThanOrEqualsOperator.SINGLETON;
        break;
      default:
        jj_la1[17] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      expression = AddExpression();
        if (operators == null) {
          operators = new ArrayList ();
          expressions = new ArrayList ();
        }
        operators.add (operator);
        expressions.add (expression);
    }
    if (operators != null) {
      {if (true) return new BinaryOperatorExpression (startExpression,
                                           operators,
                                           expressions);}
    }
    else {
      {if (true) return startExpression;}
    }
    throw new Error("Missing return statement in function");
  }

  final public Expression AddExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = MultiplyExpression();
    label_6:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
      case MINUS:
        ;
        break;
      default:
        jj_la1[18] = jj_gen;
        break label_6;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
        jj_consume_token(PLUS);
               operator = PlusOperator.SINGLETON;
        break;
      case MINUS:
        jj_consume_token(MINUS);
                  operator = MinusOperator.SINGLETON;
        break;
      default:
        jj_la1[19] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      expression = MultiplyExpression();
        if (operators == null) {
          operators = new ArrayList ();
          expressions = new ArrayList ();
        }
        operators.add (operator);
        expressions.add (expression);
    }
    if (operators != null) {
      {if (true) return new BinaryOperatorExpression (startExpression,
                                           operators,
                                           expressions);}
    }
    else {
      {if (true) return startExpression;}
    }
    throw new Error("Missing return statement in function");
  }

  final public Expression MultiplyExpression() throws ParseException {
  Expression startExpression;
  BinaryOperator operator;
  Expression expression;
  List operators = null;
  List expressions = null;
    startExpression = UnaryExpression();
    label_7:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case MULTIPLY:
      case DIVIDE1:
      case DIVIDE2: