Mercurial > projects > dwt2
annotate org.eclipse.text/src/org/eclipse/jface/text/TreeLineTracker.d @ 15:c4b1a29263fc
Successful build of org.eclipse.text
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 15 Mar 2009 19:51:07 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2005, 2006 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * Port to the D programming language: |
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11 * Frank Benoit <benoit@tionex.de> |
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12 *******************************************************************************/ |
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13 module org.eclipse.jface.text.TreeLineTracker; |
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14 import org.eclipse.jface.text.IRepairableDocument; |
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15 import org.eclipse.jface.text.AbstractDocument; |
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16 import org.eclipse.jface.text.IDocumentPartitionerExtension3; |
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17 import org.eclipse.jface.text.ConfigurableLineTracker; |
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18 import org.eclipse.jface.text.IRegion; |
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19 import org.eclipse.jface.text.TypedRegion; |
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20 import org.eclipse.jface.text.IDocumentExtension2; |
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21 import org.eclipse.jface.text.TypedPosition; |
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22 import org.eclipse.jface.text.RewriteSessionEditProcessor; |
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23 import org.eclipse.jface.text.SlaveDocumentEvent; |
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24 import org.eclipse.jface.text.IDocumentExtension3; |
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25 import org.eclipse.jface.text.IDocumentListener; |
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26 import org.eclipse.jface.text.ISynchronizable; |
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27 import org.eclipse.jface.text.DocumentEvent; |
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28 import org.eclipse.jface.text.Position; |
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29 import org.eclipse.jface.text.IRepairableDocumentExtension; |
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30 import org.eclipse.jface.text.DocumentRewriteSessionType; |
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31 import org.eclipse.jface.text.Region; |
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32 import org.eclipse.jface.text.IDocumentExtension4; |
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33 import org.eclipse.jface.text.BadLocationException; |
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34 import org.eclipse.jface.text.TextMessages; |
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35 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension2; |
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36 import org.eclipse.jface.text.IDocumentInformationMappingExtension; |
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37 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension; |
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38 import org.eclipse.jface.text.ITextStore; |
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39 import org.eclipse.jface.text.IDocumentPartitionerExtension; |
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40 import org.eclipse.jface.text.DocumentRewriteSession; |
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41 import org.eclipse.jface.text.IPositionUpdater; |
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42 import org.eclipse.jface.text.ISlaveDocumentManagerExtension; |
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43 import org.eclipse.jface.text.ILineTracker; |
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44 import org.eclipse.jface.text.ListLineTracker; |
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45 import org.eclipse.jface.text.IDocumentRewriteSessionListener; |
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46 import org.eclipse.jface.text.IDocumentInformationMapping; |
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47 import org.eclipse.jface.text.AbstractLineTracker; |
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48 import org.eclipse.jface.text.DefaultLineTracker; |
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49 import org.eclipse.jface.text.BadPositionCategoryException; |
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50 import org.eclipse.jface.text.BadPartitioningException; |
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51 import org.eclipse.jface.text.SequentialRewriteTextStore; |
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52 import org.eclipse.jface.text.IDocumentInformationMappingExtension2; |
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53 import org.eclipse.jface.text.DocumentPartitioningChangedEvent; |
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54 import org.eclipse.jface.text.FindReplaceDocumentAdapter; |
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55 import org.eclipse.jface.text.TextUtilities; |
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56 import org.eclipse.jface.text.ISlaveDocumentManager; |
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57 import org.eclipse.jface.text.IDocument; |
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58 import org.eclipse.jface.text.ILineTrackerExtension; |
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59 import org.eclipse.jface.text.IDocumentPartitioner; |
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60 import org.eclipse.jface.text.GapTextStore; |
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61 import org.eclipse.jface.text.Document; |
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62 import org.eclipse.jface.text.IDocumentExtension; |
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63 import org.eclipse.jface.text.IDocumentPartitioningListener; |
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64 import org.eclipse.jface.text.CopyOnWriteTextStore; |
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65 import org.eclipse.jface.text.DefaultPositionUpdater; |
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66 import org.eclipse.jface.text.Line; |
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67 import org.eclipse.jface.text.DocumentRewriteSessionEvent; |
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68 import org.eclipse.jface.text.IDocumentPartitionerExtension2; |
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69 import org.eclipse.jface.text.ITypedRegion; |
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70 |
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71 |
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72 import java.lang.all; |
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73 import java.util.ListIterator; |
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74 import java.util.Arrays; |
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75 import java.util.List; |
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76 import java.util.LinkedList; |
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77 import java.util.Set; |
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78 import tango.text.convert.Format; |
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79 import tango.core.Exception; |
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80 |
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81 import org.eclipse.core.runtime.Assert; |
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82 import org.eclipse.jface.text.AbstractLineTracker; |
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83 |
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84 /** |
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85 * Abstract implementation of <code>ILineTracker</code>. It lets the definition of line |
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86 * delimiters to subclasses. Assuming that '\n' is the only line delimiter, this abstract |
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87 * implementation defines the following line scheme: |
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88 * <ul> |
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89 * <li> "" -> [0,0] |
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90 * <li> "a" -> [0,1] |
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91 * <li> "\n" -> [0,1], [1,0] |
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92 * <li> "a\n" -> [0,2], [2,0] |
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93 * <li> "a\nb" -> [0,2], [2,1] |
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94 * <li> "a\nbc\n" -> [0,2], [2,3], [5,0] |
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95 * </ul> |
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96 * <p> |
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97 * This class must be subclassed. |
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98 * </p> |
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99 * <p> |
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100 * <strong>Performance:</strong> The query operations perform in <i>O(log n)</i> where <var>n</var> |
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101 * is the number of lines in the document. The modification operations roughly perform in <i>O(l * |
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102 * log n)</i> where <var>n</var> is the number of lines in the document and <var>l</var> is the |
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103 * sum of the number of removed, added or modified lines. |
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104 * </p> |
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105 * |
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106 * @since 3.2 |
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107 */ |
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108 abstract class TreeLineTracker : ILineTracker { |
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109 /* |
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110 * Differential Balanced Binary Tree |
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111 * |
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112 * Assumption: lines cannot overlap => there exists a total ordering of the lines by their offset, |
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113 * which is the same as the ordering by line number |
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114 * |
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115 * Base idea: store lines in a binary search tree |
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116 * - the key is the line number / line offset |
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117 * -> lookup_line is O(log n) |
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118 * -> lookup_offset is O(log n) |
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119 * - a change in a line somewhere will change any succeeding line numbers / line offsets |
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120 * -> replace is O(n) |
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121 * |
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122 * Differential tree: instead of storing the key (line number, line offset) directly, every node |
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123 * stores the difference between its key and its parent's key |
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124 * - the sort key is still the line number / line offset, but it remains "virtual" |
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125 * - inserting a node (a line) really increases the virtual key of all succeeding nodes (lines), but this |
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126 * fact will not be realized in the key information encoded in the nodes. |
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127 * -> any change only affects the nodes in the node's parent chain, although more bookkeeping |
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128 * has to be done when changing a node or balancing the tree |
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129 * -> replace is O(log n) |
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130 * -> line offsets and line numbers have to be computed when walking the tree from the root / |
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131 * from a node |
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132 * -> still O(log n) |
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133 * |
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134 * The balancing algorithm chosen does not depend on the differential tree property. An AVL tree |
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135 * implementation has been chosen for simplicity. |
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136 */ |
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137 |
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138 /* |
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139 * Turns assertions on/off. Don't make this a a debug option for performance reasons - this way |
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140 * the compiler can optimize the asserts away. |
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141 */ |
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142 private static const bool ASSERT= false; |
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143 |
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144 /** |
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145 * The empty delimiter of the last line. The last line and only the last line must have this |
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146 * zero-length delimiter. |
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147 */ |
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148 private static const String NO_DELIM= ""; //$NON-NLS-1$ |
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149 |
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150 /** |
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151 * A node represents one line. Its character and line offsets are 0-based and relative to the |
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152 * subtree covered by the node. All nodes under the left subtree represent lines before, all |
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153 * nodes under the right subtree lines after the current node. |
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154 */ |
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155 private static final class Node { |
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156 this(int length, String delimiter) { |
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157 this.length= length; |
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158 this.delimiter= delimiter; |
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159 } |
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160 /** |
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161 * The line index in this node's line tree, or equivalently, the number of lines in the left |
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162 * subtree. |
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163 */ |
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164 int line; |
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165 /** |
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166 * The line offset in this node's line tree, or equivalently, the number of characters in |
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167 * the left subtree. |
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168 */ |
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169 int offset; |
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170 /** The number of characters in this line. */ |
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171 int length; |
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172 /** The line delimiter of this line, needed to answer the delimiter query. */ |
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173 String delimiter; |
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174 /** The parent node, <code>null</code> if this is the root node. */ |
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175 Node parent; |
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176 /** The left subtree, possibly <code>null</code>. */ |
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177 Node left; |
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178 /** The right subtree, possibly <code>null</code>. */ |
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179 Node right; |
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180 /** The balance factor. */ |
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181 byte balance; |
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182 |
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183 /* |
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184 * @see java.lang.Object#toString() |
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185 */ |
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186 public final override String toString() { |
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187 String bal; |
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188 switch (balance) { |
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189 case 0: |
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190 bal= "="; //$NON-NLS-1$ |
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191 break; |
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192 case 1: |
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193 bal= "+"; //$NON-NLS-1$ |
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194 break; |
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195 case 2: |
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196 bal= "++"; //$NON-NLS-1$ |
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197 break; |
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198 case -1: |
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199 bal= "-"; //$NON-NLS-1$ |
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200 break; |
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201 case -2: |
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202 bal= "--"; //$NON-NLS-1$ |
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203 break; |
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204 default: |
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205 bal= Byte.toString(balance); |
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206 } |
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207 return Format("[{}+{}+{}|{}|{}]", offset, pureLength(), delimiter.length, line, bal ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ |
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208 } |
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209 |
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210 /** |
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211 * Returns the pure (without the line delimiter) length of this line. |
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212 * |
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213 * @return the pure line length |
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214 */ |
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215 int pureLength() { |
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216 return length - delimiter.length; |
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217 } |
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218 } |
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219 |
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220 /** |
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221 * The root node of the tree, never <code>null</code>. |
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222 */ |
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223 private Node fRoot; |
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224 |
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225 /** |
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226 * Creates a new line tracker. |
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227 */ |
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228 protected this() { |
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229 fRoot= new Node(0, NO_DELIM); |
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230 } |
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231 |
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232 /** |
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233 * Package visible constructor for creating a tree tracker from a list tracker. |
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234 * |
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235 * @param tracker |
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236 */ |
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237 this(ListLineTracker tracker) { |
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238 fRoot= new Node(0, NO_DELIM); |
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239 final List lines= tracker.getLines(); |
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240 final int n= lines.size(); |
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241 if (n is 0) |
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242 return; |
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243 |
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244 Line line= cast(Line) lines.get(0); |
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245 String delim= line.delimiter; |
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246 if (delim is null) |
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247 delim= NO_DELIM; |
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248 int length= line.length; |
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249 fRoot= new Node(length, delim); |
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250 Node node= fRoot; |
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251 |
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252 for (int i= 1; i < n; i++) { |
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253 line= cast(Line) lines.get(i); |
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254 delim= line.delimiter; |
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255 if (delim is null) |
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256 delim= NO_DELIM; |
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257 length= line.length; |
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258 node= insertAfter(node, length, delim); |
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259 } |
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260 |
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261 if (node.delimiter !is NO_DELIM) |
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262 insertAfter(node, 0, NO_DELIM); |
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263 |
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264 if (ASSERT) checkTree(); |
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265 } |
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266 |
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267 /** |
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268 * Returns the node (line) including a certain offset. If the offset is between two |
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269 * lines, the line starting at <code>offset</code> is returned. |
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270 * <p> |
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271 * This means that for offsets smaller than the length, the following holds: |
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272 * </p> |
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273 * <p> |
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274 * <code>line.offset <= offset < line.offset + offset.length</code>. |
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275 * </p> |
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276 * <p> |
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277 * If <code>offset</code> is the document length, then this is true: |
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278 * </p> |
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279 * <p> |
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280 * <code>offset= line.offset + line.length</code>. |
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281 * </p> |
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282 * |
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283 * @param offset a document offset |
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284 * @return the line starting at or containing <code>offset</code> |
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285 * @throws BadLocationException if the offset is invalid |
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286 */ |
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287 private Node nodeByOffset(int offset) { |
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288 /* |
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289 * Works for any binary search tree. |
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290 */ |
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291 int remaining= offset; |
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292 Node node= fRoot; |
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293 int line= 0; |
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294 |
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295 while (true) { |
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296 if (node is null) |
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297 fail(offset); |
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298 |
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299 if (remaining < node.offset) { |
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300 node= node.left; |
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301 } else { |
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302 remaining -= node.offset; |
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303 line+= node.line; |
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304 if (remaining < node.length |
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305 || remaining is node.length && node.right is null) { // last line |
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306 break; |
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307 } |
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308 remaining -= node.length; |
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309 line ++; |
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310 node= node.right; |
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311 } |
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312 } |
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313 |
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314 return node; |
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315 } |
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316 /** |
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317 * Returns the line number for the given offset. If the offset is between two lines, the line |
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318 * starting at <code>offset</code> is returned. The last line is returned if |
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319 * <code>offset</code> is equal to the document length. |
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320 * |
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321 * @param offset a document offset |
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322 * @return the line number starting at or containing <code>offset</code> |
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323 * @throws BadLocationException if the offset is invalid |
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324 */ |
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325 private int lineByOffset(int offset) { |
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326 /* |
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327 * Works for any binary search tree. |
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328 */ |
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329 int remaining= offset; |
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330 Node node= fRoot; |
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331 int line= 0; |
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332 |
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333 while (true) { |
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334 if (node is null) |
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335 fail(offset); |
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336 |
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337 if (remaining < node.offset) { |
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338 node= node.left; |
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339 } else { |
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340 remaining -= node.offset; |
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341 line+= node.line; |
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342 if (remaining < node.length || remaining is node.length && node.right is null) // last line |
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343 return line; |
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344 |
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345 remaining -= node.length; |
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346 line ++; |
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347 node= node.right; |
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348 } |
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349 } |
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350 } |
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351 |
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352 /** |
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353 * Returns the node (line) with the given line number. Note that the last line is always |
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354 * incomplete, i.e. has the {@link #NO_DELIM} delimiter. |
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355 * |
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356 * @param line a line number |
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357 * @return the line with the given line number |
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358 * @throws BadLocationException if the line is invalid |
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359 */ |
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360 private Node nodeByLine(int line) { |
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361 /* |
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362 * Works for any binary search tree. |
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363 */ |
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364 int remaining= line; |
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365 int offset= 0; |
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366 Node node= fRoot; |
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367 |
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368 while (true) { |
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369 if (node is null) |
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370 fail(line); |
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371 |
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372 if (remaining is node.line) |
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373 break; |
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374 if (remaining < node.line) { |
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375 node= node.left; |
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376 } else { |
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377 remaining -= node.line + 1; |
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378 offset += node.offset + node.length; |
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379 node= node.right; |
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380 } |
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381 } |
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382 |
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Added dwt-addons in original directory structure of eclipse.org
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383 return node; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
384 } |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
385 |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
386 /** |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
387 * Returns the offset for the given line number. Note that the |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
388 * last line is always incomplete, i.e. has the {@link #NO_DELIM} delimiter. |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
389 * |
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parents:
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|
390 * @param line a line number |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
391 * @return the line offset with the given line number |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
392 * @throws BadLocationException if the line is invalid |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
393 */ |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
394 private int offsetByLine(int line) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
395 /* |
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Frank Benoit <benoit@tionex.de>
parents:
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|
396 * Works for any binary search tree. |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
397 */ |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
398 int remaining= line; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
399 int offset= 0; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
400 Node node= fRoot; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
401 |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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changeset
|
402 while (true) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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changeset
|
403 if (node is null) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
404 fail(line); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
405 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
406 if (remaining is node.line) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
407 return offset + node.offset; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
408 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
409 if (remaining < node.line) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
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410 node= node.left; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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411 } else { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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412 remaining -= node.line + 1; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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413 offset += node.offset + node.length; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
414 node= node.right; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
415 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
416 } |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
417 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
418 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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419 /** |
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parents:
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|
420 * Left rotation - the given node is rotated down, its right child is rotated up, taking the |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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421 * previous structural position of <code>node</code>. |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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422 * |
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423 * @param node the node to rotate around |
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parents:
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424 */ |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
425 private void rotateLeft(Node node) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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426 if (ASSERT) Assert.isNotNull(node); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
427 Node child= node.right; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
428 if (ASSERT) Assert.isNotNull(child); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
429 bool leftChild= node.parent is null || node is node.parent.left; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
430 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
431 // restructure |
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parents:
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432 setChild(node.parent, child, leftChild); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
433 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
434 setChild(node, child.left, false); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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435 setChild(child, node, true); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
436 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
437 // update relative info |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
438 // child becomes the new parent, its line and offset counts increase as the former parent |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
439 // moves under child's left subtree |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
440 child.line += node.line + 1; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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441 child.offset += node.offset + node.length; |
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Added dwt-addons in original directory structure of eclipse.org
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|
442 } |
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Added dwt-addons in original directory structure of eclipse.org
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|
443 |
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Added dwt-addons in original directory structure of eclipse.org
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|
444 /** |
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parents:
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changeset
|
445 * Right rotation - the given node is rotated down, its left child is rotated up, taking the |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
446 * previous structural position of <code>node</code>. |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
447 * |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
448 * @param node the node to rotate around |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
449 */ |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
450 private void rotateRight(Node node) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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451 if (ASSERT) Assert.isNotNull(node); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
452 Node child= node.left; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
453 if (ASSERT) Assert.isNotNull(child); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
454 bool leftChild= node.parent is null || node is node.parent.left; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
455 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
456 setChild(node.parent, child, leftChild); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
457 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
458 setChild(node, child.right, true); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
459 setChild(child, node, false); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
460 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
461 // update relative info |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
462 // node loses its left subtree, except for what it keeps in its new subtree |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
463 // this is exactly the amount in child |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
464 node.line -= child.line + 1; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
465 node.offset -= child.offset + child.length; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
466 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
467 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
468 /** |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
469 * Helper method for moving a child, ensuring that parent pointers are set correctly. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
470 * |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
471 * @param parent the new parent of <code>child</code>, <code>null</code> to replace the |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
472 * root node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
473 * @param child the new child of <code>parent</code>, may be <code>null</code> |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
474 * @param isLeftChild <code>true</code> if <code>child</code> shall become |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
475 * <code>parent</code>'s left child, <code>false</code> if it shall become |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
476 * <code>parent</code>'s right child |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
477 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
478 private void setChild(Node parent, Node child, bool isLeftChild) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
479 if (parent is null) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
480 if (child is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
481 fRoot= new Node(0, NO_DELIM); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
482 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
483 fRoot= child; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
484 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
485 if (isLeftChild) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
486 parent.left= child; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
487 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
488 parent.right= child; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
489 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
490 if (child !is null) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
491 child.parent= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
492 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
493 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
494 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
495 * A left rotation around <code>parent</code>, whose structural position is replaced by |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
496 * <code>node</code>. |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
497 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
498 * @param node the node moving up and left |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
499 * @param parent the node moving left and down |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
500 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
501 private void singleLeftRotation(Node node, Node parent) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
502 rotateLeft(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
503 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
504 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
505 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
506 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
507 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
508 * A right rotation around <code>parent</code>, whose structural position is replaced by |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
509 * <code>node</code>. |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
510 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
511 * @param node the node moving up and right |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
512 * @param parent the node moving right and down |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
513 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
514 private void singleRightRotation(Node node, Node parent) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
515 rotateRight(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
516 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
517 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
518 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
519 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
520 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
521 * A double left rotation, first rotating right around <code>node</code>, then left around |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
522 * <code>parent</code>. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
523 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
524 * @param node the node that will be rotated right |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
525 * @param parent the node moving left and down |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
526 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
527 private void rightLeftRotation(Node node, Node parent) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
528 Node child= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
529 rotateRight(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
530 rotateLeft(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
531 if (child.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
532 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
533 parent.balance= -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
534 child.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
535 } else if (child.balance is 0) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
536 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
537 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
538 } else if (child.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
539 node.balance= 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
540 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
541 child.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
542 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
543 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
544 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
545 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
546 * A double right rotation, first rotating left around <code>node</code>, then right around |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
547 * <code>parent</code>. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
548 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
549 * @param node the node that will be rotated left |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
550 * @param parent the node moving right and down |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
551 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
552 private void leftRightRotation(Node node, Node parent) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
553 Node child= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
554 rotateLeft(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
555 rotateRight(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
556 if (child.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
557 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
558 parent.balance= 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
559 child.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
560 } else if (child.balance is 0) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
561 node.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
562 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
563 } else if (child.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
564 node.balance= -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
565 parent.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
566 child.balance= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
567 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
568 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
569 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
570 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
571 * Inserts a line with the given length and delimiter after <code>node</code>. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
572 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
573 * @param node the predecessor of the inserted node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
574 * @param length the line length of the inserted node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
575 * @param delimiter the delimiter of the inserted node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
576 * @return the inserted node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
577 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
578 private Node insertAfter(Node node, int length, String delimiter) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
579 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
580 * An insertion really shifts the key of all succeeding nodes. Hence we insert the added node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
581 * between node and the successor of node. The added node becomes either the right child |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
582 * of the predecessor node, or the left child of the successor node. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
583 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
584 Node added= new Node(length, delimiter); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
585 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
586 if (node.right is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
587 setChild(node, added, false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
588 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
589 setChild(successorDown(node.right), added, true); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
590 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
591 // parent chain update |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
592 updateParentChain(added, length, 1); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
593 updateParentBalanceAfterInsertion(added); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
594 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
595 return added; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
596 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
597 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
598 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
599 * Updates the balance information in the parent chain of node until it reaches the root or |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
600 * finds a node whose balance violates the AVL constraint, which is the re-balanced. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
601 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
602 * @param node the child of the first node that needs balance updating |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
603 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
604 private void updateParentBalanceAfterInsertion(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
605 Node parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
606 while (parent !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
607 if (node is parent.left) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
608 parent.balance--; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
609 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
610 parent.balance++; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
611 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
612 switch (parent.balance) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
613 case 1: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
614 case -1: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
615 node= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
616 parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
617 continue; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
618 case -2: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
619 rebalanceAfterInsertionLeft(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
620 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
621 case 2: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
622 rebalanceAfterInsertionRight(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
623 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
624 case 0: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
625 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
626 default: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
627 if (ASSERT) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
628 Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
629 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
630 return; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
631 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
632 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
633 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
634 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
635 * Re-balances a node whose parent has a double positive balance. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
636 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
637 * @param node the node to re-balance |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
638 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
639 private void rebalanceAfterInsertionRight(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
640 Node parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
641 if (node.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
642 singleLeftRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
643 } else if (node.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
644 rightLeftRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
645 } else if (ASSERT) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
646 Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
647 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
648 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
649 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
650 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
651 * Re-balances a node whose parent has a double negative balance. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
652 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
653 * @param node the node to re-balance |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
654 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
655 private void rebalanceAfterInsertionLeft(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
656 Node parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
657 if (node.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
658 singleRightRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
659 } else if (node.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
660 leftRightRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
661 } else if (ASSERT) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
662 Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
663 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
664 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
665 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
666 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
667 * @see org.eclipse.jface.text.ILineTracker#replace(int, int, java.lang.String) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
668 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
669 public final void replace(int offset, int length, String text) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
670 if (ASSERT) checkTree(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
671 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
672 // Inlined nodeByOffset as we need both node and offset |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
673 int remaining= offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
674 Node first= fRoot; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
675 int firstNodeOffset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
676 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
677 while (true) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
678 if (first is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
679 fail(offset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
680 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
681 if (remaining < first.offset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
682 first= first.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
683 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
684 remaining -= first.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
685 if (remaining < first.length |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
686 || remaining is first.length && first.right is null) { // last line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
687 firstNodeOffset= offset - remaining; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
688 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
689 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
690 remaining -= first.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
691 first= first.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
692 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
693 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
694 // Inline nodeByOffset end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
695 if (ASSERT) Assert.isTrue(first !is null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
696 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
697 Node last; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
698 if (offset + length < firstNodeOffset + first.length) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
699 last= first; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
700 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
701 last= nodeByOffset(offset + length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
702 if (ASSERT) Assert.isTrue(last !is null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
703 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
704 int firstLineDelta= firstNodeOffset + first.length - offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
705 if (first is last) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
706 replaceInternal(first, text, length, firstLineDelta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
707 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
708 replaceFromTo(first, last, text, length, firstLineDelta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
709 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
710 if (ASSERT) checkTree(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
711 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
712 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
713 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
714 * Replace happening inside a single line. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
715 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
716 * @param node the affected node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
717 * @param text the added text |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
718 * @param length the replace length, < <code>firstLineDelta</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
719 * @param firstLineDelta the number of characters from the replacement offset to the end of |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
720 * <code>node</code> > <code>length</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
721 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
722 private void replaceInternal(Node node, String text, int length, int firstLineDelta) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
723 // 1) modification on a single line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
724 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
725 AbstractLineTracker_DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
726 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
727 if (info is null || info.delimiter is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
728 // a) trivial case: insert into a single node, no line mangling |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
729 int added= text is null ? 0 : text.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
730 updateLength(node, added - length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
731 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
732 // b) more lines to add between two chunks of the first node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
733 // remember what we split off the first line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
734 int remainder= firstLineDelta - length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
735 String remDelim= node.delimiter; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
736 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
737 // join the first line with the first added |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
738 int consumed= info.delimiterIndex + info.delimiterLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
739 int delta= consumed - firstLineDelta; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
740 updateLength(node, delta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
741 node.delimiter= info.delimiter; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
742 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
743 // Inline addlines start |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
744 info= nextDelimiterInfo(text, consumed); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
745 while (info !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
746 int lineLen= info.delimiterIndex - consumed + info.delimiterLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
747 node= insertAfter(node, lineLen, info.delimiter); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
748 consumed += lineLen; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
749 info= nextDelimiterInfo(text, consumed); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
750 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
751 // Inline addlines end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
752 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
753 // add remaining chunk merged with last (incomplete) additional line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
754 insertAfter(node, remainder + text.length - consumed, remDelim); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
755 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
756 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
757 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
758 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
759 * Replace spanning from one node to another. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
760 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
761 * @param node the first affected node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
762 * @param last the last affected node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
763 * @param text the added text |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
764 * @param length the replace length, >= <code>firstLineDelta</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
765 * @param firstLineDelta the number of characters removed from the replacement offset to the end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
766 * of <code>node</code>, <= <code>length</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
767 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
768 private void replaceFromTo(Node node, Node last, String text, int length, int firstLineDelta) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
769 // 2) modification covers several lines |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
770 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
771 // delete intermediate nodes |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
772 // TODO could be further optimized: replace intermediate lines with intermediate added lines |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
773 // to reduce re-balancing |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
774 Node successor_= successor(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
775 while (successor_ !is last) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
776 length -= successor_.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
777 Node toDelete= successor_; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
778 successor_= successor(successor_); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
779 updateLength(toDelete, -toDelete.length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
780 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
781 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
782 AbstractLineTracker_DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
783 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
784 if (info is null || info.delimiter is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
785 int added= text is null ? 0 : text.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
786 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
787 // join the two lines if there are no lines added |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
788 join(node, last, added - length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
789 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
790 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
791 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
792 // join the first line with the first added |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
793 int consumed= info.delimiterIndex + info.delimiterLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
794 updateLength(node, consumed - firstLineDelta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
795 node.delimiter= info.delimiter; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
796 length -= firstLineDelta; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
797 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
798 // Inline addLines start |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
799 info= nextDelimiterInfo(text, consumed); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
800 while (info !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
801 int lineLen= info.delimiterIndex - consumed + info.delimiterLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
802 node= insertAfter(node, lineLen, info.delimiter); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
803 consumed += lineLen; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
804 info= nextDelimiterInfo(text, consumed); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
805 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
806 // Inline addLines end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
807 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
808 updateLength(last, text.length - consumed - length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
809 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
810 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
811 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
812 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
813 * Joins two consecutive node lines, additionally adjusting the resulting length of the combined |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
814 * line by <code>delta</code>. The first node gets deleted. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
815 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
816 * @param one the first node to join |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
817 * @param two the second node to join |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
818 * @param delta the delta to apply to the remaining single node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
819 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
820 private void join(Node one, Node two, int delta) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
821 int oneLength= one.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
822 updateLength(one, -oneLength); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
823 updateLength(two, oneLength + delta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
824 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
825 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
826 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
827 * Adjusts the length of a node by <code>delta</code>, also adjusting the parent chain of |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
828 * <code>node</code>. If the node's length becomes zero and is not the last (incomplete) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
829 * node, it is deleted after the update. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
830 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
831 * @param node the node to adjust |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
832 * @param delta the character delta to add to the node's length |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
833 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
834 private void updateLength(Node node, int delta) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
835 if (ASSERT) Assert.isTrue(node.length + delta >= 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
836 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
837 // update the node itself |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
838 node.length += delta; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
839 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
840 // check deletion |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
841 int lineDelta; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
842 bool delete__= node.length is 0 && node.delimiter !is NO_DELIM; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
843 if (delete__) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
844 lineDelta= -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
845 else |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
846 lineDelta= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
847 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
848 // update parent chain |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
849 if (delta !is 0 || lineDelta !is 0) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
850 updateParentChain(node, delta, lineDelta); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
851 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
852 if (delete__) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
853 delete_(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
854 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
855 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
856 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
857 * Updates the differential indices following the parent chain. All nodes from |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
858 * <code>from.parent</code> to the root are updated. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
859 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
860 * @param node the child of the first node to update |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
861 * @param deltaLength the character delta |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
862 * @param deltaLines the line delta |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
863 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
864 private void updateParentChain(Node node, int deltaLength, int deltaLines) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
865 updateParentChain(node, null, deltaLength, deltaLines); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
866 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
867 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
868 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
869 * Updates the differential indices following the parent chain. All nodes from |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
870 * <code>from.parent</code> to <code>to</code> (exclusive) are updated. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
871 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
872 * @param from the child of the first node to update |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
873 * @param to the first node not to update |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
874 * @param deltaLength the character delta |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
875 * @param deltaLines the line delta |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
876 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
877 private void updateParentChain(Node from, Node to, int deltaLength, int deltaLines) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
878 Node parent= from.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
879 while (parent !is to) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
880 // only update node if update comes from left subtree |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
881 if (from is parent.left) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
882 parent.offset += deltaLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
883 parent.line += deltaLines; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
884 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
885 from= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
886 parent= from.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
887 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
888 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
889 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
890 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
891 * Deletes a node from the tree, re-balancing it if necessary. The differential indices in the |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
892 * node's parent chain have to be updated in advance to calling this method. Generally, don't |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
893 * call <code>delete</code> directly, but call |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
894 * {@link #updateLength(Node, int) update_length(node, -node.length)} to properly remove a |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
895 * node. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
896 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
897 * @param node the node to delete. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
898 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
899 private void delete_(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
900 if (ASSERT) Assert.isTrue(node !is null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
901 if (ASSERT) Assert.isTrue(node.length is 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
902 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
903 Node parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
904 Node toUpdate; // the parent of the node that lost a child |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
905 bool lostLeftChild; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
906 bool isLeftChild= parent is null || node is parent.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
907 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
908 if (node.left is null || node.right is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
909 // 1) node has one child at max - replace parent's pointer with the only child |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
910 // also handles the trivial case of no children |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
911 Node replacement= node.left is null ? node.right : node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
912 setChild(parent, replacement, isLeftChild); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
913 toUpdate= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
914 lostLeftChild= isLeftChild; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
915 // no updates to do - subtrees stay as they are |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
916 } else if (node.right.left is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
917 // 2a) node's right child has no left child - replace node with right child, giving node's |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
918 // left subtree to the right child |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
919 Node replacement= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
920 setChild(parent, replacement, isLeftChild); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
921 setChild(replacement, node.left, true); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
922 replacement.line= node.line; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
923 replacement.offset= node.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
924 replacement.balance= node.balance; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
925 toUpdate= replacement; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
926 lostLeftChild= false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
927 // } else if (node.left.right is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
928 // // 2b) symmetric case |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
929 // Node replacement= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
930 // set_child(parent, replacement, isLeftChild); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
931 // set_child(replacement, node.right, false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
932 // replacement.balance= node.balance; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
933 // toUpdate= replacement; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
934 // lostLeftChild= true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
935 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
936 // 3) hard case - replace node with its successor |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
937 Node successor_= successor(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
938 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
939 // successor exists (otherwise node would not have right child, case 1) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
940 if (ASSERT) Assert.isNotNull(successor_); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
941 // successor has no left child (a left child would be the real successor of node) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
942 if (ASSERT) Assert.isTrue(successor_.left is null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
943 if (ASSERT) Assert.isTrue(successor_.line is 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
944 // successor is the left child of its parent (otherwise parent would be smaller and |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
945 // hence the real successor) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
946 if (ASSERT) Assert.isTrue(successor_ is successor_.parent.left); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
947 // successor is not a child of node (would have been covered by 2a) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
948 if (ASSERT) Assert.isTrue(successor_.parent !is node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
949 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
950 toUpdate= successor_.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
951 lostLeftChild= true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
952 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
953 // update relative indices |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
954 updateParentChain(successor_, node, -successor_.length, -1); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
955 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
956 // delete successor from its current place - like 1) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
957 setChild(toUpdate, successor_.right, true); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
958 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
959 // move node's subtrees to its successor |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
960 setChild(successor_, node.right, false); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
961 setChild(successor_, node.left, true); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
962 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
963 // replace node by successor in its parent |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
964 setChild(parent, successor_, isLeftChild); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
965 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
966 // update the successor |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
967 successor_.line= node.line; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
968 successor_.offset= node.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
969 successor_.balance= node.balance; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
970 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
971 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
972 updateParentBalanceAfterDeletion(toUpdate, lostLeftChild); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
973 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
974 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
975 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
976 * Updates the balance information in the parent chain of node. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
977 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
978 * @param node the first node that needs balance updating |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
979 * @param wasLeftChild <code>true</code> if the deletion happened on <code>node</code>'s |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
980 * left subtree, <code>false</code> if it occurred on <code>node</code>'s right |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
981 * subtree |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
982 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
983 private void updateParentBalanceAfterDeletion(Node node, bool wasLeftChild) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
984 while (node !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
985 if (wasLeftChild) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
986 node.balance++; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
987 else |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
988 node.balance--; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
989 |
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Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
990 Node parent= node.parent; |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
991 if (parent !is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
992 wasLeftChild= node is parent.left; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
993 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
994 switch (node.balance) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
995 case 1: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
996 case -1: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
997 return; // done, no tree change |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
998 case -2: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
999 if (rebalanceAfterDeletionRight(node.left)) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1000 return; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1001 break; // propagate up |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1002 case 2: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1003 if (rebalanceAfterDeletionLeft(node.right)) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1004 return; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1005 break; // propagate up |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1006 case 0: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1007 break; // propagate up |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1008 default: |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1009 if (ASSERT) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1010 Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1011 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1012 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1013 node= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1014 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1015 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1016 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1017 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1018 * Re-balances a node whose parent has a double positive balance. |
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parents:
diff
changeset
|
1019 * |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1020 * @param node the node to re-balance |
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Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1021 * @return <code>true</code> if the re-balancement leaves the height at |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1022 * <code>node.parent</code> constant, <code>false</code> if the height changed |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1023 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
1024 private bool rebalanceAfterDeletionLeft(Node node) { |
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parents:
diff
changeset
|
1025 Node parent= node.parent; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1026 if (node.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1027 singleLeftRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1028 return false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1029 } else if (node.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1030 rightLeftRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1031 return false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1032 } else if (node.balance is 0) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1033 rotateLeft(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1034 node.balance= -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1035 parent.balance= 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1036 return true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1037 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1038 if (ASSERT) Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1039 return true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1040 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1041 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1042 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1043 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1044 * Re-balances a node whose parent has a double negative balance. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1045 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1046 * @param node the node to re-balance |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1047 * @return <code>true</code> if the re-balancement leaves the height at |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1048 * <code>node.parent</code> constant, <code>false</code> if the height changed |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1049 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1050 private bool rebalanceAfterDeletionRight(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1051 Node parent= node.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1052 if (node.balance is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1053 singleRightRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1054 return false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1055 } else if (node.balance is 1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1056 leftRightRotation(node, parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1057 return false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1058 } else if (node.balance is 0) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1059 rotateRight(parent); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1060 node.balance= 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1061 parent.balance= -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1062 return true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1063 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1064 if (ASSERT) Assert.isTrue(false); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1065 return true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1066 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1067 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1068 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1069 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1070 * Returns the successor of a node, <code>null</code> if node is the last node. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1071 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1072 * @param node a node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1073 * @return the successor of <code>node</code>, <code>null</code> if there is none |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1074 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1075 private Node successor(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1076 if (node.right !is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1077 return successorDown(node.right); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1078 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1079 return successorUp(node); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1080 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1081 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1082 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1083 * Searches the successor of <code>node</code> in its parent chain. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1084 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1085 * @param node a node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1086 * @return the first node in <code>node</code>'s parent chain that is reached from its left |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1087 * subtree, <code>null</code> if there is none |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1088 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1089 private Node successorUp(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1090 Node child= node; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1091 Node parent= child.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1092 while (parent !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1093 if (child is parent.left) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1094 return parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1095 child= parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1096 parent= child.parent; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1097 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1098 if (ASSERT) Assert.isTrue(node.delimiter is NO_DELIM); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1099 return null; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1100 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1101 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1102 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1103 * Searches the left-most node in a given subtree. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1104 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1105 * @param node a node |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1106 * @return the left-most node in the given subtree |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1107 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1108 private Node successorDown(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1109 Node child= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1110 while (child !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1111 node= child; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1112 child= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1113 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1114 return node; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1115 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1116 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1117 /* miscellaneous */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1118 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1119 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1120 * Throws an exception. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1121 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1122 * @param offset the illegal character or line offset that caused the exception |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1123 * @throws BadLocationException always |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1124 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1125 private void fail(int offset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1126 throw new BadLocationException(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1127 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1128 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1129 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1130 * Returns the information about the first delimiter found in the given |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1131 * text starting at the given offset. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1132 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1133 * @param text the text to be searched |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1134 * @param offset the offset in the given text |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1135 * @return the information of the first found delimiter or <code>null</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1136 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1137 protected abstract AbstractLineTracker_DelimiterInfo nextDelimiterInfo(String text, int offset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1138 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1139 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1140 * @see org.eclipse.jface.text.ILineTracker#getLineDelimiter(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1141 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1142 public final String getLineDelimiter(int line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1143 Node node= nodeByLine(line); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1144 return node.delimiter is NO_DELIM ? null : node.delimiter; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1145 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1146 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1147 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1148 * @see org.eclipse.jface.text.ILineTracker#computeNumberOfLines(java.lang.String) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1149 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1150 public final int computeNumberOfLines(String text) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1151 int count= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1152 int start= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1153 AbstractLineTracker_DelimiterInfo delimiterInfo= nextDelimiterInfo(text, start); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1154 while (delimiterInfo !is null && delimiterInfo.delimiterIndex > -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1155 ++count; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1156 start= delimiterInfo.delimiterIndex + delimiterInfo.delimiterLength; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1157 delimiterInfo= nextDelimiterInfo(text, start); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1158 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1159 return count; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1160 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1161 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1162 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1163 * @see org.eclipse.jface.text.ILineTracker#getNumberOfLines() |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1164 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1165 public final int getNumberOfLines() { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1166 // TODO track separately? |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1167 Node node= fRoot; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1168 int lines= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1169 while (node !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1170 lines += node.line + 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1171 node= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1172 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1173 return lines; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1174 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1175 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1176 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1177 * @see org.eclipse.jface.text.ILineTracker#getNumberOfLines(int, int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1178 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1179 public final int getNumberOfLines(int offset, int length) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1180 if (length is 0) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1181 return 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1182 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1183 int startLine= lineByOffset(offset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1184 int endLine= lineByOffset(offset + length); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1185 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1186 return endLine - startLine + 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1187 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1188 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1189 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1190 * @see org.eclipse.jface.text.ILineTracker#getLineOffset(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1191 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1192 public final int getLineOffset(int line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1193 return offsetByLine(line); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1194 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1195 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1196 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1197 * @see org.eclipse.jface.text.ILineTracker#getLineLength(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1198 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1199 public final int getLineLength(int line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1200 Node node= nodeByLine(line); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1201 return node.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1202 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1203 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1204 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1205 * @see org.eclipse.jface.text.ILineTracker#getLineNumberOfOffset(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1206 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1207 public final int getLineNumberOfOffset(int offset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1208 return lineByOffset(offset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1209 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1210 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1211 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1212 * @see org.eclipse.jface.text.ILineTracker#getLineInformationOfOffset(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1213 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1214 public final IRegion getLineInformationOfOffset(int offset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1215 // Inline nodeByOffset start as we need both node and offset |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1216 int remaining= offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1217 Node node= fRoot; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1218 int lineOffset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1219 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1220 while (true) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1221 if (node is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1222 fail(offset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1223 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1224 if (remaining < node.offset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1225 node= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1226 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1227 remaining -= node.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1228 if (remaining < node.length |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1229 || remaining is node.length && node.right is null) { // last line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1230 lineOffset= offset - remaining; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1231 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1232 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1233 remaining -= node.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1234 node= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1235 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1236 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1237 // Inline nodeByOffset end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1238 return new Region(lineOffset, node.pureLength()); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1239 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1240 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1241 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1242 * @see org.eclipse.jface.text.ILineTracker#getLineInformation(int) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1243 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1244 public final IRegion getLineInformation(int line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1245 try { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1246 // Inline nodeByLine start |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1247 int remaining= line; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1248 int offset= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1249 Node node= fRoot; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1250 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1251 while (true) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1252 if (node is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1253 fail(line); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1254 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1255 if (remaining is node.line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1256 offset += node.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1257 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1258 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1259 if (remaining < node.line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1260 node= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1261 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1262 remaining -= node.line + 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1263 offset += node.offset + node.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1264 node= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1265 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1266 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1267 // Inline nodeByLine end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1268 return new Region(offset, node.pureLength()); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1269 } catch (BadLocationException x) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1270 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1271 * FIXME: this really strange behavior is mandated by the previous line tracker |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1272 * implementation and included here for compatibility. See |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1273 * LineTrackerTest3#testFunnyLastLineCompatibility(). |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1274 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1275 if (line > 0 && line is getNumberOfLines()) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1276 line= line - 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1277 // Inline nodeByLine start |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1278 int remaining= line; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1279 int offset= 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1280 Node node= fRoot; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1281 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1282 while (true) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1283 if (node is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1284 fail(line); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1285 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1286 if (remaining is node.line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1287 offset+= node.offset; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1288 break; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1289 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1290 if (remaining < node.line) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1291 node= node.left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1292 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1293 remaining -= node.line + 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1294 offset += node.offset + node.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1295 node= node.right; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1296 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1297 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1298 Node last= node; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1299 // Inline nodeByLine end |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1300 if (last.length > 0) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1301 return new Region(offset + last.length, 0); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1302 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1303 throw x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1304 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1305 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1306 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1307 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1308 * @see org.eclipse.jface.text.ILineTracker#set(java.lang.String) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1309 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1310 public final void set(String text) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1311 fRoot= new Node(0, NO_DELIM); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1312 try { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1313 replace(0, 0, text); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1314 } catch (BadLocationException x) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1315 throw new AssertException(__FILE__,__LINE__); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1316 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1317 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1318 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1319 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1320 * @see java.lang.Object#toString() |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1321 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1322 public override String toString() { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1323 int depth= computeDepth(fRoot); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1324 int WIDTH= 30; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1325 int leaves= cast(int) Math.pow( cast(real)2, cast(uint) depth - 1); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1326 int width= WIDTH * leaves; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1327 String empty= "."; //$NON-NLS-1$ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1328 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1329 List roots= new LinkedList(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1330 roots.add(fRoot); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1331 StringBuffer buf= new StringBuffer((width + 1) * depth); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1332 int nodes= 1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1333 int indents= leaves; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1334 char[] space= new char[leaves * WIDTH / 2]; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1335 Arrays.fill(space, ' '); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1336 for(int d= 0; d < depth; d++) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1337 // compute indent |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1338 indents /= 2; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1339 int spaces= Math.max(0, indents * WIDTH - WIDTH / 2); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1340 // print nodes |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1341 for (ListIterator it= roots.listIterator(); it.hasNext();) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1342 // pad before |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1343 buf.append(space[ 0 .. spaces]); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1344 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1345 Node node= cast(Node) it.next(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1346 String box; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1347 // replace the node with its children |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1348 if (node is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1349 it.add(cast(Object)null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1350 box= empty; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1351 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1352 it.set(node.left); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1353 it.add(node.right); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1354 box= node.toString(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1355 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1356 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1357 // draw the node, pad to WIDTH |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1358 int pad_left= (WIDTH - box.length() + 1) / 2; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1359 int pad_right= WIDTH - box.length() - pad_left; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1360 buf.append(space[ 0 .. pad_left]); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1361 buf.append(box); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1362 buf.append(space[ 0 .. pad_right]); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1363 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1364 // pad after |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1365 buf.append(space[ 0 .. spaces]); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1366 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1367 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1368 buf.append('\n'); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1369 nodes *= 2; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1370 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1371 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1372 return buf.toString(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1373 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1374 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1375 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1376 * Recursively computes the depth of the tree. Only used by {@link #toString()}. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1377 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1378 * @param root the subtree to compute the depth of, may be <code>null</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1379 * @return the depth of the given tree, 0 if it is <code>null</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1380 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1381 private byte computeDepth(Node root) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1382 if (root is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1383 return 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1384 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1385 return cast(byte) (Math.max(computeDepth(root.left), computeDepth(root.right)) + 1); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1386 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1387 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1388 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1389 * Debug-only method that checks the tree structure and the differential offsets. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1390 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1391 private void checkTree() { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1392 checkTreeStructure(fRoot); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1393 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1394 try { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1395 checkTreeOffsets(nodeByOffset(0), [0, 0], null); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1396 } catch (BadLocationException x) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1397 throw new AssertException(__FILE__,__LINE__); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1398 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1399 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1400 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1401 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1402 * Debug-only method that validates the tree structure below <code>node</code>. I.e. it |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1403 * checks whether all parent/child pointers are consistent and whether the AVL balance |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1404 * information is correct. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1405 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1406 * @param node the node to validate |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1407 * @return the depth of the tree under <code>node</code> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1408 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1409 private byte checkTreeStructure(Node node) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1410 if (node is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1411 return 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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1412 |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1413 byte leftDepth= checkTreeStructure(node.left); |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1414 byte rightDepth= checkTreeStructure(node.right); |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1415 Assert.isTrue(node.balance is rightDepth - leftDepth); |
bc29606a740c
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1416 Assert.isTrue(node.left is null || node.left.parent is node); |
bc29606a740c
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1417 Assert.isTrue(node.right is null || node.right.parent is node); |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1418 |
bc29606a740c
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1419 return cast(byte) (Math.max(rightDepth, leftDepth) + 1); |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1420 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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1421 |
bc29606a740c
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Frank Benoit <benoit@tionex.de>
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1422 /** |
bc29606a740c
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1423 * Debug-only method that checks the differential offsets of the tree, starting at |
bc29606a740c
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1424 * <code>node</code> and continuing until <code>last</code>. |
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Frank Benoit <benoit@tionex.de>
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1425 * |
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1426 * @param node the first <code>Node</code> to check, may be <code>null</code> |
bc29606a740c
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1427 * @param offLen an array of length 2, with <code>offLen[0]</code> the expected offset of |
bc29606a740c
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1428 * <code>node</code> and <code>offLen[1]</code> the expected line of |
bc29606a740c
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1429 * <code>node</code> |
bc29606a740c
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1430 * @param last the last <code>Node</code> to check, may be <code>null</code> |
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1431 * @return an <code>int[]</code> of length 2, with the first element being the character |
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1432 * length of <code>node</code>'s subtree, and the second element the number of lines |
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1433 * in <code>node</code>'s subtree |
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1434 */ |
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1435 private int[] checkTreeOffsets(Node node, int[] offLen, Node last) { |
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1436 if (node is last) |
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1437 return offLen; |
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1438 |
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1439 Assert.isTrue(node.offset is offLen[0]); |
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1440 Assert.isTrue(node.line is offLen[1]); |
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1441 |
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1442 if (node.right !is null) { |
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1443 int[] result= checkTreeOffsets(successorDown(node.right), new int[2], node); |
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1444 offLen[0] += result[0]; |
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1445 offLen[1] += result[1]; |
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1446 } |
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1447 |
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1448 offLen[0] += node.length; |
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1449 offLen[1]++; |
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1450 return checkTreeOffsets(node.parent, offLen, last); |
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1451 } |
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1452 } |