package com.aragost.javahg.internals;

 import java.io.IOException;

 import java.util.Iterator;

 import java.util.NoSuchElementException;

 public class LineIterator implements Iterator<String>, Iterable<String> {

     private boolean atEnd = false;

     private HgInputStream stream;

     public LineIterator(HgInputStream stream) {

         this.stream = stream;

     }

     public Iterator<String> iterator() {

         return this;

     }

     public boolean hasNext() {

         if (!this.atEnd) {

             try {

                 this.atEnd = (this.stream.isEof());

             } catch (IOException e) {

                 throw new RuntimeIOException(e);

             }

         }

         return !this.atEnd;

     }

     public String next() {

         if (hasNext()) {

             try {

                 return this.stream.textUpTo('\n');

             } catch (IOException e) {

                 throw new RuntimeIOException(e);

             }

         } else {

             throw new NoSuchElementException();

         }

     }

     public void remove() {

         throw new UnsupportedOperationException();

     }

 }