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annotate src/org/tmatesoft/hg/util/PathRewrite.java @ 709:497e697636fc

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Report merged lines as changed block if possible, not as a sequence of added/deleted blocks. To facilitate access to merge parent lines AddBlock got mergeLineAt() method that reports index of the line in the second parent (if any), while insertedAt() has been changed to report index in the first parent always
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 21 Aug 2013 16:23:27 +0200
parents a415fe296a50
children
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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a3a2e5deb320 Updated contact address to support@hg4j.com
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.util;
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19 import java.util.LinkedList;
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20 import java.util.List;
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22 /**
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23 * File names often need transformations, like Windows-style path to Unix or human-readable data file name to storage location.
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24 *
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25 * @author Artem Tikhomirov
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26 * @author TMate Software Ltd.
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27 */
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28 public interface PathRewrite {
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30 public CharSequence rewrite(CharSequence path);
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31
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32 public static class Empty implements PathRewrite {
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33 public CharSequence rewrite(CharSequence path) {
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34 return path;
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35 }
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36 }
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38 public class Composite implements PathRewrite {
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39 private List<PathRewrite> chain;
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41 public Composite(PathRewrite... e) {
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42 LinkedList<PathRewrite> r = new LinkedList<PathRewrite>();
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43 for (int i = 0; e != null && i < e.length; i++) {
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44 r.addLast(e[i]);
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45 }
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46 chain = r;
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47 }
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48 public Composite chain(PathRewrite e) {
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49 chain.add(e);
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50 return this;
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51 }
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53 public CharSequence rewrite(CharSequence path) {
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54 for (PathRewrite pr : chain) {
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55 path = pr.rewrite(path);
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56 }
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57 return path;
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58 }
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59 }
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60 }