| /* |
| * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /**/ |
| |
| |
| public class LineGenerator { |
| |
| IntGenerator ig; |
| StringGenerator sg; |
| int limit; |
| |
| public LineGenerator(IntGenerator ig, StringGenerator sg, int limit) { |
| this.ig = ig; |
| this.sg = sg; |
| this.limit = limit; |
| } |
| |
| public LineGenerator(IntGenerator ig) { |
| this.ig = ig; |
| this.sg = new StringGenerator(ig); |
| this.limit = -1; |
| } |
| |
| private char prevTerminator = 0; |
| private int count = 0; |
| public String lineTerminator; |
| |
| public String next() { |
| if ((count >= limit) && (limit >= 0)) |
| return null; |
| |
| String l = sg.next(); |
| |
| /* Avoid "\r\n" sequences |
| in which the '\n' terminates a blank line */ |
| int len = l.length(); |
| int t; |
| do |
| t = ig.next(2); |
| while ((prevTerminator == '\r') && (len == 0) && (t == 0)); |
| |
| String ts; |
| switch (t) { |
| case 0: |
| ts = "\n"; |
| prevTerminator = '\n'; |
| break; |
| case 1: |
| ts = "\r"; |
| prevTerminator = '\r'; |
| break; |
| case 2: |
| default: |
| ts = "\r\n"; |
| prevTerminator = '\n'; |
| break; |
| } |
| |
| count++; |
| lineTerminator = ts; |
| return l; |
| } |
| } |