Class expression.ExprNode 
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Class expression.ExprNode 

java.lang.Object
   |
   +----expression.ExprNode
public class ExprNode
extends Object
A reduced expression node in an operator-precedence parsing tree.

Variable Index

o etype
Expression node type.

Constructor Index

o ExprNode()
Create a default empty expression node.

Method Index

o eval()
Evaluate the expression node.
o push(Symbol)
Pushes a symbol into the expression node.
o push(ExprNode)
Pushes an expression node into the expression node.
o push(Function)
Pushes a function into the expression node.
o push(double)
Pushes a const into the expression node.
o push(Variable)
Pushes a variable into the expression node.
o toString()
Returns the string representation of the expression node.

Variables

o etype 
  public int etype
Expression node type.

Constructors

o ExprNode 
  public ExprNode()
Create a default empty expression node.

Methods

o push 
  public void push(Symbol sym) throws ExpressionParseException
Pushes a symbol into the expression node. It will dispatch corresponding operation depending on the type of input symbol.
o push 
  public void push(ExprNode n) throws ExpressionParseException
Pushes an expression node into the expression node.
o push 
  public void push(Function f) throws ExpressionParseException
Pushes a function into the expression node.
o push 
  public void push(double i) throws ExpressionParseException
Pushes a const into the expression node.
o push 
  public void push(Variable v) throws ExpressionParseException
Pushes a variable into the expression node.
o eval 
  public double eval() throws ExpressionEvalException
Evaluate the expression node.
o toString 
  public String toString()
Returns the string representation of the expression node.
Overrides:
toString in class Object 
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