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();
      }
  
  }