com.atlassian.renderer.v2.components.block
Class LineWalker

java.lang.Object
  com.atlassian.renderer.v2.components.block.LineWalker

public class LineWalker
extends Object

Iterates over a String line by line. Acts somewhat like an iterator, but with extra methods. It provides a "peek()" function so that following lines can be checked without modifying the state of the walker, and a "pushBack(String)" function so that the state can be rolled back (or even falsified) when required.

This class is not thread-safe.

Constructor Summary

LineWalker(String text)

Method Summary

boolean	hasNext()
String	next() Walks the next line, returning the line and advancing the state of the walker past that line.
String	peek() Returns the next line to be walked without actually walking it.
void	pushBack(String line)

Methods inherited from class java.lang.Object

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

Constructor Detail

LineWalker

public LineWalker(String text)

Method Detail

hasNext

public boolean hasNext()

Returns:

true if there are more lines to be walked

peek

public String peek()

Returns the next line to be walked without actually walking it. Throws an exception if there are no lines, so call hasNext() first.

Returns:

the next line to be walked.

Throws:

IllegalStateException - if there are no more lines to be walked.

next

public String next()

Walks the next line, returning the line and advancing the state of the walker past that line. Throws an exception if there are no lines, so call hasNext() first.

Returns:

the next line.

Throws:

IllegalStateException - if there are no more lines to be walked.

pushBack

public void pushBack(String line)