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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 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 dwtx.jface.text.TextUtilities;
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14
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131
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15 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport
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16 import dwtx.jface.text.DefaultTextHover; // packageimport
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17 import dwtx.jface.text.AbstractInformationControl; // packageimport
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18 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport
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19 import dwtx.jface.text.AbstractInformationControlManager; // packageimport
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20 import dwtx.jface.text.ITextViewerExtension2; // packageimport
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21 import dwtx.jface.text.IDocumentPartitioner; // packageimport
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22 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport
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23 import dwtx.jface.text.ITextSelection; // packageimport
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24 import dwtx.jface.text.Document; // packageimport
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25 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport
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26 import dwtx.jface.text.ITextListener; // packageimport
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27 import dwtx.jface.text.BadPartitioningException; // packageimport
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28 import dwtx.jface.text.ITextViewerExtension5; // packageimport
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29 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport
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30 import dwtx.jface.text.IUndoManager; // packageimport
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31 import dwtx.jface.text.ITextHoverExtension2; // packageimport
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32 import dwtx.jface.text.IRepairableDocument; // packageimport
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33 import dwtx.jface.text.IRewriteTarget; // packageimport
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34 import dwtx.jface.text.DefaultPositionUpdater; // packageimport
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35 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport
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36 import dwtx.jface.text.TextViewerHoverManager; // packageimport
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37 import dwtx.jface.text.DocumentRewriteSession; // packageimport
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38 import dwtx.jface.text.TextViewer; // packageimport
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39 import dwtx.jface.text.ITextViewerExtension8; // packageimport
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40 import dwtx.jface.text.RegExMessages; // packageimport
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41 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport
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42 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport
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43 import dwtx.jface.text.IWidgetTokenOwner; // packageimport
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44 import dwtx.jface.text.IViewportListener; // packageimport
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45 import dwtx.jface.text.GapTextStore; // packageimport
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46 import dwtx.jface.text.MarkSelection; // packageimport
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47 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport
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48 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport
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49 import dwtx.jface.text.IInformationControlExtension; // packageimport
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50 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport
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51 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport
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52 import dwtx.jface.text.ITextViewerExtension3; // packageimport
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53 import dwtx.jface.text.IInformationControlCreator; // packageimport
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54 import dwtx.jface.text.TypedRegion; // packageimport
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55 import dwtx.jface.text.ISynchronizable; // packageimport
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56 import dwtx.jface.text.IMarkRegionTarget; // packageimport
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57 import dwtx.jface.text.TextViewerUndoManager; // packageimport
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58 import dwtx.jface.text.IRegion; // packageimport
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59 import dwtx.jface.text.IInformationControlExtension2; // packageimport
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60 import dwtx.jface.text.IDocumentExtension4; // packageimport
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61 import dwtx.jface.text.IDocumentExtension2; // packageimport
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62 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport
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63 import dwtx.jface.text.Assert; // packageimport
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64 import dwtx.jface.text.DefaultInformationControl; // packageimport
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65 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport
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66 import dwtx.jface.text.DocumentClone; // packageimport
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67 import dwtx.jface.text.DefaultUndoManager; // packageimport
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68 import dwtx.jface.text.IFindReplaceTarget; // packageimport
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69 import dwtx.jface.text.IAutoEditStrategy; // packageimport
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70 import dwtx.jface.text.ILineTrackerExtension; // packageimport
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71 import dwtx.jface.text.IUndoManagerExtension; // packageimport
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72 import dwtx.jface.text.TextSelection; // packageimport
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73 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport
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74 import dwtx.jface.text.IAutoIndentStrategy; // packageimport
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75 import dwtx.jface.text.IPainter; // packageimport
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76 import dwtx.jface.text.IInformationControl; // packageimport
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77 import dwtx.jface.text.IInformationControlExtension3; // packageimport
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78 import dwtx.jface.text.ITextViewerExtension6; // packageimport
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79 import dwtx.jface.text.IInformationControlExtension4; // packageimport
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80 import dwtx.jface.text.DefaultLineTracker; // packageimport
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81 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport
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82 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport
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83 import dwtx.jface.text.ITextHover; // packageimport
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84 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport
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85 import dwtx.jface.text.ILineTracker; // packageimport
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86 import dwtx.jface.text.Line; // packageimport
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87 import dwtx.jface.text.ITextViewerExtension; // packageimport
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88 import dwtx.jface.text.IDocumentAdapter; // packageimport
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89 import dwtx.jface.text.TextEvent; // packageimport
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90 import dwtx.jface.text.BadLocationException; // packageimport
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91 import dwtx.jface.text.AbstractDocument; // packageimport
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92 import dwtx.jface.text.AbstractLineTracker; // packageimport
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93 import dwtx.jface.text.TreeLineTracker; // packageimport
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94 import dwtx.jface.text.ITextPresentationListener; // packageimport
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95 import dwtx.jface.text.Region; // packageimport
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96 import dwtx.jface.text.ITextViewer; // packageimport
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97 import dwtx.jface.text.IDocumentInformationMapping; // packageimport
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98 import dwtx.jface.text.MarginPainter; // packageimport
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99 import dwtx.jface.text.IPaintPositionManager; // packageimport
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100 import dwtx.jface.text.TextPresentation; // packageimport
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101 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport
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102 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport
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103 import dwtx.jface.text.ISelectionValidator; // packageimport
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104 import dwtx.jface.text.IDocumentExtension; // packageimport
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105 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport
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106 import dwtx.jface.text.ConfigurableLineTracker; // packageimport
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107 import dwtx.jface.text.SlaveDocumentEvent; // packageimport
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108 import dwtx.jface.text.IDocumentListener; // packageimport
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109 import dwtx.jface.text.PaintManager; // packageimport
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110 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport
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111 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport
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112 import dwtx.jface.text.IDocumentExtension3; // packageimport
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113 import dwtx.jface.text.Position; // packageimport
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114 import dwtx.jface.text.TextMessages; // packageimport
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115 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport
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116 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport
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117 import dwtx.jface.text.IPositionUpdater; // packageimport
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118 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport
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119 import dwtx.jface.text.ListLineTracker; // packageimport
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120 import dwtx.jface.text.ITextInputListener; // packageimport
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121 import dwtx.jface.text.BadPositionCategoryException; // packageimport
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122 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport
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123 import dwtx.jface.text.IInputChangedListener; // packageimport
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124 import dwtx.jface.text.ITextOperationTarget; // packageimport
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125 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport
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126 import dwtx.jface.text.ITextViewerExtension7; // packageimport
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127 import dwtx.jface.text.IInformationControlExtension5; // packageimport
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128 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport
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129 import dwtx.jface.text.JFaceTextUtil; // packageimport
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130 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport
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131 import dwtx.jface.text.TabsToSpacesConverter; // packageimport
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132 import dwtx.jface.text.CursorLinePainter; // packageimport
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133 import dwtx.jface.text.ITextHoverExtension; // packageimport
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134 import dwtx.jface.text.IEventConsumer; // packageimport
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135 import dwtx.jface.text.IDocument; // packageimport
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136 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport
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137 import dwtx.jface.text.DocumentCommand; // packageimport
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138 import dwtx.jface.text.TypedPosition; // packageimport
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139 import dwtx.jface.text.IEditingSupportRegistry; // packageimport
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140 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport
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141 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport
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142 import dwtx.jface.text.IEditingSupport; // packageimport
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143 import dwtx.jface.text.IMarkSelection; // packageimport
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144 import dwtx.jface.text.ISlaveDocumentManager; // packageimport
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145 import dwtx.jface.text.DocumentEvent; // packageimport
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146 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport
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147 import dwtx.jface.text.ITextStore; // packageimport
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148 import dwtx.jface.text.JFaceTextMessages; // packageimport
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149 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport
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150 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport
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151 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport
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152 import dwtx.jface.text.TextAttribute; // packageimport
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153 import dwtx.jface.text.ITextViewerExtension4; // packageimport
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154 import dwtx.jface.text.ITypedRegion; // packageimport
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155
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156
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129
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157 import dwt.dwthelper.utils;
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158
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159 import java.util.HashMap;
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160 import java.util.HashSet;
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161 import java.util.Iterator;
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162 import java.util.List;
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163 import java.util.ListIterator;
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164 import java.util.Map;
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165 import java.util.Set;
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166
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167 import dwtx.core.runtime.Assert;
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168
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169
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170 /**
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171 * A collection of text functions.
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172 * <p>
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173 * This class is neither intended to be instantiated nor subclassed.
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174 * </p>
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175 * @noinstantiate This class is not intended to be instantiated by clients.
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176 * @noextend This class is not intended to be subclassed by clients.
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177 */
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178 public class TextUtilities {
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179
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180 /**
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181 * Default line delimiters used by the text functions of this class.
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182 */
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183 public final static String[] DELIMITERS= new String[] { "\n", "\r", "\r\n" }; //$NON-NLS-3$ //$NON-NLS-2$ //$NON-NLS-1$
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184
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185 /**
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186 * Default line delimiters used by these text functions.
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187 *
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188 * @deprecated use DELIMITERS instead
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189 */
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190 public final static String[] fgDelimiters= DELIMITERS;
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191
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192
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193
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194 /**
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195 * Determines which one of default line delimiters appears first in the list. If none of them the
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196 * hint is returned.
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197 *
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198 * @param text the text to be checked
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199 * @param hint the line delimiter hint
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200 * @return the line delimiter
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201 */
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202 public static String determineLineDelimiter(String text, String hint) {
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203 try {
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204 int[] info= indexOf(DELIMITERS, text, 0);
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205 return DELIMITERS[info[1]];
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206 } catch (ArrayIndexOutOfBoundsException x) {
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207 }
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208 return hint;
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209 }
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210
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211 /**
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212 * Returns the starting position and the index of the first matching search string
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213 * in the given text that is greater than the given offset. If more than one search
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214 * string matches with the same starting position then the longest one is returned.
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215 *
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216 * @param searchStrings the strings to search for
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217 * @param text the text to be searched
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218 * @param offset the offset at which to start the search
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219 * @return an <code>int[]</code> with two elements where the first is the starting offset, the second the index of the found
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220 * search string in the given <code>searchStrings</code> array, returns <code>[-1, -1]</code> if no match exists
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221 */
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222 public static int[] indexOf(String[] searchStrings, String text, int offset) {
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223
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224 int[] result= { -1, -1 };
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225 int zeroIndex= -1;
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226
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227 for (int i= 0; i < searchStrings.length; i++) {
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228
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229 int length= searchStrings[i].length();
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230
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231 if (length is 0) {
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232 zeroIndex= i;
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233 continue;
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234 }
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235
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236 int index= text.indexOf(searchStrings[i], offset);
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237 if (index >= 0) {
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238
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239 if (result[0] is -1) {
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240 result[0]= index;
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241 result[1]= i;
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242 } else if (index < result[0]) {
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243 result[0]= index;
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244 result[1]= i;
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245 } else if (index is result[0] && length > searchStrings[result[1]].length()) {
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246 result[0]= index;
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247 result[1]= i;
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248 }
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249 }
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250 }
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251
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252 if (zeroIndex > -1 && result[0] is -1) {
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253 result[0]= 0;
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254 result[1]= zeroIndex;
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255 }
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256
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257 return result;
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258 }
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259
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260 /**
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261 * Returns the index of the longest search string with which the given text ends or
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262 * <code>-1</code> if none matches.
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263 *
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264 * @param searchStrings the strings to search for
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265 * @param text the text to search
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266 * @return the index in <code>searchStrings</code> of the longest string with which <code>text</code> ends or <code>-1</code>
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267 */
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268 public static int endsWith(String[] searchStrings, String text) {
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269
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270 int index= -1;
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271
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272 for (int i= 0; i < searchStrings.length; i++) {
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273 if (text.endsWith(searchStrings[i])) {
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274 if (index is -1 || searchStrings[i].length() > searchStrings[index].length())
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275 index= i;
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276 }
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277 }
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278
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279 return index;
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280 }
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281
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282 /**
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283 * Returns the index of the longest search string with which the given text starts or <code>-1</code>
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284 * if none matches.
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285 *
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286 * @param searchStrings the strings to search for
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287 * @param text the text to search
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288 * @return the index in <code>searchStrings</code> of the longest string with which <code>text</code> starts or <code>-1</code>
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289 */
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290 public static int startsWith(String[] searchStrings, String text) {
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291
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292 int index= -1;
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293
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294 for (int i= 0; i < searchStrings.length; i++) {
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295 if (text.startsWith(searchStrings[i])) {
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296 if (index is -1 || searchStrings[i].length() > searchStrings[index].length())
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297 index= i;
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298 }
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299 }
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300
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301 return index;
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302 }
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303
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304 /**
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305 * Returns the index of the first compare string that equals the given text or <code>-1</code>
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306 * if none is equal.
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307 *
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308 * @param compareStrings the strings to compare with
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309 * @param text the text to check
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310 * @return the index of the first equal compare string or <code>-1</code>
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311 */
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312 public static int equals(String[] compareStrings, String text) {
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313 for (int i= 0; i < compareStrings.length; i++) {
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314 if (text.equals(compareStrings[i]))
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315 return i;
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316 }
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317 return -1;
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318 }
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319
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320 /**
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321 * Returns a document event which is an accumulation of a list of document events,
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322 * <code>null</code> if the list of documentEvents is empty.
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323 * The document of the document events are ignored.
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324 *
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325 * @param unprocessedDocument the document to which the document events would be applied
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326 * @param documentEvents the list of document events to merge
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327 * @return returns the merged document event
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328 * @throws BadLocationException might be thrown if document is not in the correct state with respect to document events
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329 */
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330 public static DocumentEvent mergeUnprocessedDocumentEvents(IDocument unprocessedDocument, List documentEvents) throws BadLocationException {
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331
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332 if (documentEvents.size() is 0)
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333 return null;
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334
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335 final Iterator iterator= documentEvents.iterator();
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336 final DocumentEvent firstEvent= (DocumentEvent) iterator.next();
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337
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338 // current merged event
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339 final IDocument document= unprocessedDocument;
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340 int offset= firstEvent.getOffset();
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341 int length= firstEvent.getLength();
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342 final StringBuffer text= new StringBuffer(firstEvent.getText() is null ? "" : firstEvent.getText()); //$NON-NLS-1$
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343
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344 while (iterator.hasNext()) {
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345
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346 final int delta= text.length() - length;
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347
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348 final DocumentEvent event= (DocumentEvent) iterator.next();
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349 final int eventOffset= event.getOffset();
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350 final int eventLength= event.getLength();
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|
|
351 final String eventText= event.getText() is null ? "" : event.getText(); //$NON-NLS-1$
|
|
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352
|
|
|
353 // event is right from merged event
|
|
|
354 if (eventOffset > offset + length + delta) {
|
|
|
355 final String string= document.get(offset + length, (eventOffset - delta) - (offset + length));
|
|
|
356 text.append(string);
|
|
|
357 text.append(eventText);
|
|
|
358
|
|
|
359 length= (eventOffset - delta) + eventLength - offset;
|
|
|
360
|
|
|
361 // event is left from merged event
|
|
|
362 } else if (eventOffset + eventLength < offset) {
|
|
|
363 final String string= document.get(eventOffset + eventLength, offset - (eventOffset + eventLength));
|
|
|
364 text.insert(0, string);
|
|
|
365 text.insert(0, eventText);
|
|
|
366
|
|
|
367 length= offset + length - eventOffset;
|
|
|
368 offset= eventOffset;
|
|
|
369
|
|
|
370 // events overlap each other
|
|
|
371 } else {
|
|
|
372 final int start= Math.max(0, eventOffset - offset);
|
|
|
373 final int end= Math.min(text.length(), eventLength + eventOffset - offset);
|
|
|
374 text.replace(start, end, eventText);
|
|
|
375
|
|
|
376 offset= Math.min(offset, eventOffset);
|
|
|
377 final int totalDelta= delta + eventText.length() - eventLength;
|
|
|
378 length= text.length() - totalDelta;
|
|
|
379 }
|
|
|
380 }
|
|
|
381
|
|
|
382 return new DocumentEvent(document, offset, length, text.toString());
|
|
|
383 }
|
|
|
384
|
|
|
385 /**
|
|
|
386 * Returns a document event which is an accumulation of a list of document events,
|
|
|
387 * <code>null</code> if the list of document events is empty.
|
|
|
388 * The document events being merged must all refer to the same document, to which
|
|
|
389 * the document changes have been already applied.
|
|
|
390 *
|
|
|
391 * @param documentEvents the list of document events to merge
|
|
|
392 * @return returns the merged document event
|
|
|
393 * @throws BadLocationException might be thrown if document is not in the correct state with respect to document events
|
|
|
394 */
|
|
|
395 public static DocumentEvent mergeProcessedDocumentEvents(List documentEvents) throws BadLocationException {
|
|
|
396
|
|
|
397 if (documentEvents.size() is 0)
|
|
|
398 return null;
|
|
|
399
|
|
|
400 final ListIterator iterator= documentEvents.listIterator(documentEvents.size());
|
|
|
401 final DocumentEvent firstEvent= (DocumentEvent) iterator.previous();
|
|
|
402
|
|
|
403 // current merged event
|
|
|
404 final IDocument document= firstEvent.getDocument();
|
|
|
405 int offset= firstEvent.getOffset();
|
|
|
406 int length= firstEvent.getLength();
|
|
|
407 int textLength= firstEvent.getText() is null ? 0 : firstEvent.getText().length();
|
|
|
408
|
|
|
409 while (iterator.hasPrevious()) {
|
|
|
410
|
|
|
411 final int delta= length - textLength;
|
|
|
412
|
|
|
413 final DocumentEvent event= (DocumentEvent) iterator.previous();
|
|
|
414 final int eventOffset= event.getOffset();
|
|
|
415 final int eventLength= event.getLength();
|
|
|
416 final int eventTextLength= event.getText() is null ? 0 : event.getText().length();
|
|
|
417
|
|
|
418 // event is right from merged event
|
|
|
419 if (eventOffset > offset + textLength + delta) {
|
|
|
420 length= (eventOffset - delta) - (offset + textLength) + length + eventLength;
|
|
|
421 textLength= (eventOffset - delta) + eventTextLength - offset;
|
|
|
422
|
|
|
423 // event is left from merged event
|
|
|
424 } else if (eventOffset + eventTextLength < offset) {
|
|
|
425 length= offset - (eventOffset + eventTextLength) + length + eventLength;
|
|
|
426 textLength= offset + textLength - eventOffset;
|
|
|
427 offset= eventOffset;
|
|
|
428
|
|
|
429 // events overlap each other
|
|
|
430 } else {
|
|
|
431 final int start= Math.max(0, eventOffset - offset);
|
|
|
432 final int end= Math.min(length, eventTextLength + eventOffset - offset);
|
|
|
433 length += eventLength - (end - start);
|
|
|
434
|
|
|
435 offset= Math.min(offset, eventOffset);
|
|
|
436 final int totalDelta= delta + eventLength - eventTextLength;
|
|
|
437 textLength= length - totalDelta;
|
|
|
438 }
|
|
|
439 }
|
|
|
440
|
|
|
441 final String text= document.get(offset, textLength);
|
|
|
442 return new DocumentEvent(document, offset, length, text);
|
|
|
443 }
|
|
|
444
|
|
|
445 /**
|
|
|
446 * Removes all connected document partitioners from the given document and stores them
|
|
|
447 * under their partitioning name in a map. This map is returned. After this method has been called
|
|
|
448 * the given document is no longer connected to any document partitioner.
|
|
|
449 *
|
|
|
450 * @param document the document
|
|
|
451 * @return the map containing the removed partitioners
|
|
|
452 */
|
|
|
453 public static Map removeDocumentPartitioners(IDocument document) {
|
|
|
454 Map partitioners= new HashMap();
|
|
|
455 if (document instanceof IDocumentExtension3) {
|
|
|
456 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
457 String[] partitionings= extension3.getPartitionings();
|
|
|
458 for (int i= 0; i < partitionings.length; i++) {
|
|
|
459 IDocumentPartitioner partitioner= extension3.getDocumentPartitioner(partitionings[i]);
|
|
|
460 if (partitioner !is null) {
|
|
|
461 extension3.setDocumentPartitioner(partitionings[i], null);
|
|
|
462 partitioner.disconnect();
|
|
|
463 partitioners.put(partitionings[i], partitioner);
|
|
|
464 }
|
|
|
465 }
|
|
|
466 } else {
|
|
|
467 IDocumentPartitioner partitioner= document.getDocumentPartitioner();
|
|
|
468 if (partitioner !is null) {
|
|
|
469 document.setDocumentPartitioner(null);
|
|
|
470 partitioner.disconnect();
|
|
|
471 partitioners.put(IDocumentExtension3.DEFAULT_PARTITIONING, partitioner);
|
|
|
472 }
|
|
|
473 }
|
|
|
474 return partitioners;
|
|
|
475 }
|
|
|
476
|
|
|
477 /**
|
|
|
478 * Connects the given document with all document partitioners stored in the given map under
|
|
|
479 * their partitioning name. This method cleans the given map.
|
|
|
480 *
|
|
|
481 * @param document the document
|
|
|
482 * @param partitioners the map containing the partitioners to be connected
|
|
|
483 * @since 3.0
|
|
|
484 */
|
|
|
485 public static void addDocumentPartitioners(IDocument document, Map partitioners) {
|
|
|
486 if (document instanceof IDocumentExtension3) {
|
|
|
487 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
488 Iterator e= partitioners.keySet().iterator();
|
|
|
489 while (e.hasNext()) {
|
|
|
490 String partitioning= (String) e.next();
|
|
|
491 IDocumentPartitioner partitioner= (IDocumentPartitioner) partitioners.get(partitioning);
|
|
|
492 partitioner.connect(document);
|
|
|
493 extension3.setDocumentPartitioner(partitioning, partitioner);
|
|
|
494 }
|
|
|
495 partitioners.clear();
|
|
|
496 } else {
|
|
|
497 IDocumentPartitioner partitioner= (IDocumentPartitioner) partitioners.get(IDocumentExtension3.DEFAULT_PARTITIONING);
|
|
|
498 partitioner.connect(document);
|
|
|
499 document.setDocumentPartitioner(partitioner);
|
|
|
500 }
|
|
|
501 }
|
|
|
502
|
|
|
503 /**
|
|
|
504 * Returns the content type at the given offset of the given document.
|
|
|
505 *
|
|
|
506 * @param document the document
|
|
|
507 * @param partitioning the partitioning to be used
|
|
|
508 * @param offset the offset
|
|
|
509 * @param preferOpenPartitions <code>true</code> if precedence should be
|
|
|
510 * given to a open partition ending at <code>offset</code> over a
|
|
|
511 * closed partition starting at <code>offset</code>
|
|
|
512 * @return the content type at the given offset of the document
|
|
|
513 * @throws BadLocationException if offset is invalid in the document
|
|
|
514 * @since 3.0
|
|
|
515 */
|
|
|
516 public static String getContentType(IDocument document, String partitioning, int offset, bool preferOpenPartitions) throws BadLocationException {
|
|
|
517 if (document instanceof IDocumentExtension3) {
|
|
|
518 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
519 try {
|
|
|
520 return extension3.getContentType(partitioning, offset, preferOpenPartitions);
|
|
|
521 } catch (BadPartitioningException x) {
|
|
|
522 return IDocument.DEFAULT_CONTENT_TYPE;
|
|
|
523 }
|
|
|
524 }
|
|
|
525
|
|
|
526 return document.getContentType(offset);
|
|
|
527 }
|
|
|
528
|
|
|
529 /**
|
|
|
530 * Returns the partition of the given offset of the given document.
|
|
|
531 *
|
|
|
532 * @param document the document
|
|
|
533 * @param partitioning the partitioning to be used
|
|
|
534 * @param offset the offset
|
|
|
535 * @param preferOpenPartitions <code>true</code> if precedence should be
|
|
|
536 * given to a open partition ending at <code>offset</code> over a
|
|
|
537 * closed partition starting at <code>offset</code>
|
|
|
538 * @return the content type at the given offset of this viewer's input
|
|
|
539 * document
|
|
|
540 * @throws BadLocationException if offset is invalid in the given document
|
|
|
541 * @since 3.0
|
|
|
542 */
|
|
|
543 public static ITypedRegion getPartition(IDocument document, String partitioning, int offset, bool preferOpenPartitions) throws BadLocationException {
|
|
|
544 if (document instanceof IDocumentExtension3) {
|
|
|
545 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
546 try {
|
|
|
547 return extension3.getPartition(partitioning, offset, preferOpenPartitions);
|
|
|
548 } catch (BadPartitioningException x) {
|
|
|
549 return new TypedRegion(0, document.getLength(), IDocument.DEFAULT_CONTENT_TYPE);
|
|
|
550 }
|
|
|
551 }
|
|
|
552
|
|
|
553 return document.getPartition(offset);
|
|
|
554 }
|
|
|
555
|
|
|
556 /**
|
|
|
557 * Computes and returns the partitioning for the given region of the given
|
|
|
558 * document for the given partitioning name.
|
|
|
559 *
|
|
|
560 * @param document the document
|
|
|
561 * @param partitioning the partitioning name
|
|
|
562 * @param offset the region offset
|
|
|
563 * @param length the region length
|
|
|
564 * @param includeZeroLengthPartitions whether to include zero-length partitions
|
|
|
565 * @return the partitioning for the given region of the given document for
|
|
|
566 * the given partitioning name
|
|
|
567 * @throws BadLocationException if the given region is invalid for the given
|
|
|
568 * document
|
|
|
569 * @since 3.0
|
|
|
570 */
|
|
|
571 public static ITypedRegion[] computePartitioning(IDocument document, String partitioning, int offset, int length, bool includeZeroLengthPartitions) throws BadLocationException {
|
|
|
572 if (document instanceof IDocumentExtension3) {
|
|
|
573 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
574 try {
|
|
|
575 return extension3.computePartitioning(partitioning, offset, length, includeZeroLengthPartitions);
|
|
|
576 } catch (BadPartitioningException x) {
|
|
|
577 return new ITypedRegion[0];
|
|
|
578 }
|
|
|
579 }
|
|
|
580
|
|
|
581 return document.computePartitioning(offset, length);
|
|
|
582 }
|
|
|
583
|
|
|
584 /**
|
|
|
585 * Computes and returns the partition managing position categories for the
|
|
|
586 * given document or <code>null</code> if this was impossible.
|
|
|
587 *
|
|
|
588 * @param document the document
|
|
|
589 * @return the partition managing position categories or <code>null</code>
|
|
|
590 * @since 3.0
|
|
|
591 */
|
|
|
592 public static String[] computePartitionManagingCategories(IDocument document) {
|
|
|
593 if (document instanceof IDocumentExtension3) {
|
|
|
594 IDocumentExtension3 extension3= (IDocumentExtension3) document;
|
|
|
595 String[] partitionings= extension3.getPartitionings();
|
|
|
596 if (partitionings !is null) {
|
|
|
597 Set categories= new HashSet();
|
|
|
598 for (int i= 0; i < partitionings.length; i++) {
|
|
|
599 IDocumentPartitioner p= extension3.getDocumentPartitioner(partitionings[i]);
|
|
|
600 if (p instanceof IDocumentPartitionerExtension2) {
|
|
|
601 IDocumentPartitionerExtension2 extension2= (IDocumentPartitionerExtension2) p;
|
|
|
602 String[] c= extension2.getManagingPositionCategories();
|
|
|
603 if (c !is null) {
|
|
|
604 for (int j= 0; j < c.length; j++)
|
|
|
605 categories.add(c[j]);
|
|
|
606 }
|
|
|
607 }
|
|
|
608 }
|
|
|
609 String[] result= new String[categories.size()];
|
|
|
610 categories.toArray(result);
|
|
|
611 return result;
|
|
|
612 }
|
|
|
613 }
|
|
|
614 return null;
|
|
|
615 }
|
|
|
616
|
|
|
617 /**
|
|
|
618 * Returns the default line delimiter for the given document. This is either the delimiter of the first line, or the platform line delimiter if it is
|
|
|
619 * a legal line delimiter or the first one of the legal line delimiters. The default line delimiter should be used when performing document
|
|
|
620 * manipulations that span multiple lines.
|
|
|
621 *
|
|
|
622 * @param document the document
|
|
|
623 * @return the document's default line delimiter
|
|
|
624 * @since 3.0
|
|
|
625 */
|
|
|
626 public static String getDefaultLineDelimiter(IDocument document) {
|
|
|
627
|
|
|
628 if (document instanceof IDocumentExtension4)
|
|
|
629 return ((IDocumentExtension4)document).getDefaultLineDelimiter();
|
|
|
630
|
|
|
631 String lineDelimiter= null;
|
|
|
632
|
|
|
633 try {
|
|
|
634 lineDelimiter= document.getLineDelimiter(0);
|
|
|
635 } catch (BadLocationException x) {
|
|
|
636 }
|
|
|
637
|
|
|
638 if (lineDelimiter !is null)
|
|
|
639 return lineDelimiter;
|
|
|
640
|
|
|
641 String sysLineDelimiter= System.getProperty("line.separator"); //$NON-NLS-1$
|
|
|
642 String[] delimiters= document.getLegalLineDelimiters();
|
|
|
643 Assert.isTrue(delimiters.length > 0);
|
|
|
644 for (int i= 0; i < delimiters.length; i++) {
|
|
|
645 if (delimiters[i].equals(sysLineDelimiter)) {
|
|
|
646 lineDelimiter= sysLineDelimiter;
|
|
|
647 break;
|
|
|
648 }
|
|
|
649 }
|
|
|
650
|
|
|
651 if (lineDelimiter is null)
|
|
|
652 lineDelimiter= delimiters[0];
|
|
|
653
|
|
|
654 return lineDelimiter;
|
|
|
655 }
|
|
|
656
|
|
|
657 /**
|
|
|
658 * Returns <code>true</code> if the two regions overlap. Returns <code>false</code> if one of the
|
|
|
659 * arguments is <code>null</code>.
|
|
|
660 *
|
|
|
661 * @param left the left region
|
|
|
662 * @param right the right region
|
|
|
663 * @return <code>true</code> if the two regions overlap, <code>false</code> otherwise
|
|
|
664 * @since 3.0
|
|
|
665 */
|
|
|
666 public static bool overlaps(IRegion left, IRegion right) {
|
|
|
667
|
|
|
668 if (left is null || right is null)
|
|
|
669 return false;
|
|
|
670
|
|
|
671 int rightEnd= right.getOffset() + right.getLength();
|
|
|
672 int leftEnd= left.getOffset()+ left.getLength();
|
|
|
673
|
|
|
674 if (right.getLength() > 0) {
|
|
|
675 if (left.getLength() > 0)
|
|
|
676 return left.getOffset() < rightEnd && right.getOffset() < leftEnd;
|
|
|
677 return right.getOffset() <= left.getOffset() && left.getOffset() < rightEnd;
|
|
|
678 }
|
|
|
679
|
|
|
680 if (left.getLength() > 0)
|
|
|
681 return left.getOffset() <= right.getOffset() && right.getOffset() < leftEnd;
|
|
|
682
|
|
|
683 return left.getOffset() is right.getOffset();
|
|
|
684 }
|
|
|
685
|
|
|
686 /**
|
|
|
687 * Returns a copy of the given string array.
|
|
|
688 *
|
|
|
689 * @param array the string array to be copied
|
|
|
690 * @return a copy of the given string array or <code>null</code> when <code>array</code> is <code>null</code>
|
|
|
691 * @since 3.1
|
|
|
692 */
|
|
|
693 public static String[] copy(String[] array) {
|
|
|
694 if (array !is null) {
|
|
|
695 String[] copy= new String[array.length];
|
|
|
696 System.arraycopy(array, 0, copy, 0, array.length);
|
|
|
697 return copy;
|
|
|
698 }
|
|
|
699 return null;
|
|
|
700 }
|
|
|
701
|
|
|
702 /**
|
|
|
703 * Returns a copy of the given integer array.
|
|
|
704 *
|
|
|
705 * @param array the integer array to be copied
|
|
|
706 * @return a copy of the given integer array or <code>null</code> when <code>array</code> is <code>null</code>
|
|
|
707 * @since 3.1
|
|
|
708 */
|
|
|
709 public static int[] copy(int[] array) {
|
|
|
710 if (array !is null) {
|
|
|
711 int[] copy= new int[array.length];
|
|
|
712 System.arraycopy(array, 0, copy, 0, array.length);
|
|
|
713 return copy;
|
|
|
714 }
|
|
|
715 return null;
|
|
|
716 }
|
|
|
717 }
|
