civquest.parser.condition
Class ComplexConditionParser

java.lang.Object
  civquest.parser.condition.ConditionParser
      civquest.parser.condition.ComplexConditionParser

public class ComplexConditionParser

extends ConditionParser

A ComplexConditionParser can parse condition expressions with an arbitrary number of variables. This flexibility comes at the cost of a slightly slower evaluation process.

Field Summary

protected java.util.Hashtable

env

Fields inherited from class civquest.parser.condition.ConditionParser

current, err, expr, OP_AND, OP_EQ, OP_GE, OP_GT, OP_LE, OP_LT, OP_OR, tokenizer, tree

Constructor Summary

ComplexConditionParser(java.lang.String expr)

Method Summary

void	bind(java.lang.String name, int val) Binds a value to a variable name.
int	getBinding(java.lang.String name) Gets the value for a bound variable.

Methods inherited from class civquest.parser.condition.ConditionParser

error, eval, next, parseCompoundExpr, parseExpr, parseLogicOperator, parseOperand, parseRelativeOperator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

env

protected java.util.Hashtable env

Constructor Detail

ComplexConditionParser

public ComplexConditionParser(java.lang.String expr)

Method Detail

bind

public void bind(java.lang.String name,
                 int val)

Description copied from class: ConditionParser

Binds a value to a variable name. Note that a concrete ConditionParser may have other preferred means for this.

Specified by:

bind in class ConditionParser

Parameters:

name - The name of the variable to be bound

val - The value to bind to the name

getBinding

public int getBinding(java.lang.String name)

Description copied from class: ConditionParser

Gets the value for a bound variable. Note that a concrete ConditionParser may have other preferred means for this.

Specified by:

getBinding in class ConditionParser

Parameters:

name - The name of the variable

Returns:

the current value for the variable