edu.nyu.jet.pat

Class PrintAction

java.lang.Object

edu.nyu.jet.pat.Action

edu.nyu.jet.pat.PrintAction

public class PrintAction
extends Action

the encoding of the "print message" action, where message is a StringExpression (one or more strings or variables).

Constructor Summary

Constructors

Constructor and Description
PrintAction(StreamTokenizer tok) constructs a new PrintAction by reading from StreamTokenizer tok.
PrintAction(StringExpression message) constructs a new PrintAction, given a message

Method Summary

Methods

Modifier and Type	Method and Description
int	perform(Document doc, PatternApplication patap) performs the "print" action, writing the message to the Console.
String	toString() returns a printable form of the "print" action, consisting of "print" followed by the elements of the message, separated by "+".

Methods inherited from class java.lang.Object

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

Constructor Detail

PrintAction

public PrintAction(StringExpression message)

constructs a new PrintAction, given a message

PrintAction

public PrintAction(StreamTokenizer tok)
            throws IOException,
                   PatternSyntaxError

constructs a new PrintAction by reading from StreamTokenizer tok. The input should be the token "write" (the current token) followed by a StringExpression: one or more strings or variables, separated by "+".

Throws:

IOException

PatternSyntaxError

Method Detail

perform

public int perform(Document doc,
          PatternApplication patap)

performs the "print" action, writing the message to the Console.

Specified by:

perform in class Action

toString

public String toString()

returns a printable form of the "print" action, consisting of "print" followed by the elements of the message, separated by "+".

Specified by:

toString in class Action