+++ /dev/null
-/*
- * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v. 2.0, which is available at
- * http://www.eclipse.org/legal/epl-2.0.
- *
- * This Source Code may also be made available under the following Secondary
- * Licenses when the conditions for such availability set forth in the
- * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
- * version 2 with the GNU Classpath Exception, which is available at
- * https://www.gnu.org/software/classpath/license.html.
- *
- * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
- */
-
-package com.sun.mail.mbox;
-
-import java.io.*;
-import java.nio.charset.StandardCharsets;
-
-/**
- * Convert the various newline conventions to the local platform's
- * newline convention. Optionally, make sure the output ends with
- * a blank line.
- */
-public class NewlineOutputStream extends FilterOutputStream {
- private int lastb = -1;
- private int bol = 1; // number of times in a row we're at beginning of line
- private final boolean endWithBlankLine;
- private static final byte[] newline;
-
- static {
- String s = null;
- try {
- s = System.lineSeparator();
- } catch (SecurityException sex) {
- // ignore, should never happen
- }
- if (s == null || s.length() <= 0)
- s = "\n";
- newline = s.getBytes(StandardCharsets.ISO_8859_1);
- }
-
- public NewlineOutputStream(OutputStream os) {
- this(os, false);
- }
-
- public NewlineOutputStream(OutputStream os, boolean endWithBlankLine) {
- super(os);
- this.endWithBlankLine = endWithBlankLine;
- }
-
- public void write(int b) throws IOException {
- if (b == '\r') {
- out.write(newline);
- bol++;
- } else if (b == '\n') {
- if (lastb != '\r') {
- out.write(newline);
- bol++;
- }
- } else {
- out.write(b);
- bol = 0; // no longer at beginning of line
- }
- lastb = b;
- }
-
- public void write(byte b[]) throws IOException {
- write(b, 0, b.length);
- }
-
- public void write(byte b[], int off, int len) throws IOException {
- for (int i = 0 ; i < len ; i++) {
- write(b[off + i]);
- }
- }
-
- public void flush() throws IOException {
- if (endWithBlankLine) {
- if (bol == 0) {
- // not at bol, return to bol and add a blank line
- out.write(newline);
- out.write(newline);
- } else if (bol == 1) {
- // at bol, add a blank line
- out.write(newline);
- }
- }
- bol = 2;
- out.flush();
- }
-}