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