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annotate Core/WindowsPathUtils.cs @ 10:627dcbca86fc default tip

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* Update standard .csproj with MonoDevelop-initiated cleanup * Add Mono for Android version of .csproj file
author IBBoard <dev@ibboard.co.uk>
date Sat, 14 Jul 2012 15:25:26 +0100
parents 94e25b786321
children
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1
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1 // WindowsPathUtils.cs
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2 //
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3 // Copyright 2007 John Reilly
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4 //
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5 // This program is free software; you can redistribute it and/or
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6 // modify it under the terms of the GNU General Public License
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7 // as published by the Free Software Foundation; either version 2
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8 // of the License, or (at your option) any later version.
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9 //
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10 // This program is distributed in the hope that it will be useful,
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11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 // GNU General Public License for more details.
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14 //
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15 // You should have received a copy of the GNU General Public License
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16 // along with this program; if not, write to the Free Software
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17 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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18 //
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19 // Linking this library statically or dynamically with other modules is
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20 // making a combined work based on this library. Thus, the terms and
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21 // conditions of the GNU General Public License cover the whole
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22 // combination.
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23 //
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24 // As a special exception, the copyright holders of this library give you
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25 // permission to link this library with independent modules to produce an
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26 // executable, regardless of the license terms of these independent
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27 // modules, and to copy and distribute the resulting executable under
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28 // terms of your choice, provided that you also meet, for each linked
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29 // independent module, the terms and conditions of the license of that
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30 // module. An independent module is a module which is not derived from
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31 // or based on this library. If you modify this library, you may extend
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32 // this exception to your version of the library, but you are not
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33 // obligated to do so. If you do not wish to do so, delete this
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34 // exception statement from your version.
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35
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36 namespace ICSharpCode.SharpZipLib.Core
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37 {
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38 /// <summary>
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39 /// WindowsPathUtils provides simple utilities for handling windows paths.
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40 /// </summary>
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41 public abstract class WindowsPathUtils
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42 {
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43 /// <summary>
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44 /// Initializes a new instance of the <see cref="WindowsPathUtils"/> class.
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45 /// </summary>
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46 internal WindowsPathUtils()
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47 {
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48 }
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49
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50 /// <summary>
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51 /// Remove any path root present in the path
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52 /// </summary>
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53 /// <param name="path">A <see cref="string"/> containing path information.</param>
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54 /// <returns>The path with the root removed if it was present; path otherwise.</returns>
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55 /// <remarks>Unlike the <see cref="System.IO.Path"/> class the path isnt otherwise checked for validity.</remarks>
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56 public static string DropPathRoot(string path)
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57 {
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58 string result = path;
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59
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60 if ( (path != null) && (path.Length > 0) ) {
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61 if ((path[0] == '\\') || (path[0] == '/')) {
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62 // UNC name ?
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63 if ((path.Length > 1) && ((path[1] == '\\') || (path[1] == '/'))) {
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64 int index = 2;
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65 int elements = 2;
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66
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67 // Scan for two separate elements \\machine\share\restofpath
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68 while ((index <= path.Length) &&
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69 (((path[index] != '\\') && (path[index] != '/')) || (--elements > 0))) {
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70 index++;
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71 }
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72
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73 index++;
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74
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75 if (index < path.Length) {
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76 result = path.Substring(index);
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77 }
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78 else {
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79 result = "";
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80 }
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81 }
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82 }
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83 else if ((path.Length > 1) && (path[1] == ':')) {
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84 int dropCount = 2;
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85 if ((path.Length > 2) && ((path[2] == '\\') || (path[2] == '/'))) {
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86 dropCount = 3;
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87 }
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88 result = result.Remove(0, dropCount);
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89 }
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90 }
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91 return result;
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92 }
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93 }
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94 }