Mercurial > projects > dwt-addons
annotate dwtx/jface/text/FindReplaceDocumentAdapter.d @ 156:a9566845f1cb
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 25 Aug 2008 19:03:46 +0200 |
| parents | 000f9136b8f7 |
| children | 7926b636c282 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Cagatay Calli <ccalli@gmail.com> - [find/replace] retain caps when replacing - https://bugs.eclipse.org/bugs/show_bug.cgi?id=28949 | |
| 11 * Cagatay Calli <ccalli@gmail.com> - [find/replace] define & fix behavior of retain caps with other escapes and text before \C - https://bugs.eclipse.org/bugs/show_bug.cgi?id=217061 | |
| 12 * Port to the D programming language: | |
| 13 * Frank Benoit <benoit@tionex.de> | |
| 14 *******************************************************************************/ | |
| 15 module dwtx.jface.text.FindReplaceDocumentAdapter; | |
| 16 | |
| 131 | 17 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport |
| 18 import dwtx.jface.text.DefaultTextHover; // packageimport | |
| 19 import dwtx.jface.text.AbstractInformationControl; // packageimport | |
| 20 import dwtx.jface.text.TextUtilities; // packageimport | |
| 21 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport | |
| 22 import dwtx.jface.text.AbstractInformationControlManager; // packageimport | |
| 23 import dwtx.jface.text.ITextViewerExtension2; // packageimport | |
| 24 import dwtx.jface.text.IDocumentPartitioner; // packageimport | |
| 25 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport | |
| 26 import dwtx.jface.text.ITextSelection; // packageimport | |
| 27 import dwtx.jface.text.Document; // packageimport | |
| 28 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport | |
| 29 import dwtx.jface.text.ITextListener; // packageimport | |
| 30 import dwtx.jface.text.BadPartitioningException; // packageimport | |
| 31 import dwtx.jface.text.ITextViewerExtension5; // packageimport | |
| 32 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport | |
| 33 import dwtx.jface.text.IUndoManager; // packageimport | |
| 34 import dwtx.jface.text.ITextHoverExtension2; // packageimport | |
| 35 import dwtx.jface.text.IRepairableDocument; // packageimport | |
| 36 import dwtx.jface.text.IRewriteTarget; // packageimport | |
| 37 import dwtx.jface.text.DefaultPositionUpdater; // packageimport | |
| 38 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport | |
| 39 import dwtx.jface.text.TextViewerHoverManager; // packageimport | |
| 40 import dwtx.jface.text.DocumentRewriteSession; // packageimport | |
| 41 import dwtx.jface.text.TextViewer; // packageimport | |
| 42 import dwtx.jface.text.ITextViewerExtension8; // packageimport | |
| 43 import dwtx.jface.text.RegExMessages; // packageimport | |
| 44 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport | |
| 45 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport | |
| 46 import dwtx.jface.text.IWidgetTokenOwner; // packageimport | |
| 47 import dwtx.jface.text.IViewportListener; // packageimport | |
| 48 import dwtx.jface.text.GapTextStore; // packageimport | |
| 49 import dwtx.jface.text.MarkSelection; // packageimport | |
| 50 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
| 51 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport | |
| 52 import dwtx.jface.text.IInformationControlExtension; // packageimport | |
| 53 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
| 54 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport | |
| 55 import dwtx.jface.text.ITextViewerExtension3; // packageimport | |
| 56 import dwtx.jface.text.IInformationControlCreator; // packageimport | |
| 57 import dwtx.jface.text.TypedRegion; // packageimport | |
| 58 import dwtx.jface.text.ISynchronizable; // packageimport | |
| 59 import dwtx.jface.text.IMarkRegionTarget; // packageimport | |
| 60 import dwtx.jface.text.TextViewerUndoManager; // packageimport | |
| 61 import dwtx.jface.text.IRegion; // packageimport | |
| 62 import dwtx.jface.text.IInformationControlExtension2; // packageimport | |
| 63 import dwtx.jface.text.IDocumentExtension4; // packageimport | |
| 64 import dwtx.jface.text.IDocumentExtension2; // packageimport | |
| 65 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport | |
| 66 import dwtx.jface.text.Assert; // packageimport | |
| 67 import dwtx.jface.text.DefaultInformationControl; // packageimport | |
| 68 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
| 69 import dwtx.jface.text.DocumentClone; // packageimport | |
| 70 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
| 71 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
| 72 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
| 73 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
| 74 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
| 75 import dwtx.jface.text.TextSelection; // packageimport | |
| 76 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
| 77 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
| 78 import dwtx.jface.text.IPainter; // packageimport | |
| 79 import dwtx.jface.text.IInformationControl; // packageimport | |
| 80 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
| 81 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
| 82 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
| 83 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
| 84 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
| 85 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
| 86 import dwtx.jface.text.ITextHover; // packageimport | |
| 87 import dwtx.jface.text.ILineTracker; // packageimport | |
| 88 import dwtx.jface.text.Line; // packageimport | |
| 89 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
| 90 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
| 91 import dwtx.jface.text.TextEvent; // packageimport | |
| 92 import dwtx.jface.text.BadLocationException; // packageimport | |
| 93 import dwtx.jface.text.AbstractDocument; // packageimport | |
| 94 import dwtx.jface.text.AbstractLineTracker; // packageimport | |
| 95 import dwtx.jface.text.TreeLineTracker; // packageimport | |
| 96 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
| 97 import dwtx.jface.text.Region; // packageimport | |
| 98 import dwtx.jface.text.ITextViewer; // packageimport | |
| 99 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
| 100 import dwtx.jface.text.MarginPainter; // packageimport | |
| 101 import dwtx.jface.text.IPaintPositionManager; // packageimport | |
| 102 import dwtx.jface.text.TextPresentation; // packageimport | |
| 103 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport | |
| 104 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
| 105 import dwtx.jface.text.ISelectionValidator; // packageimport | |
| 106 import dwtx.jface.text.IDocumentExtension; // packageimport | |
| 107 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport | |
| 108 import dwtx.jface.text.ConfigurableLineTracker; // packageimport | |
| 109 import dwtx.jface.text.SlaveDocumentEvent; // packageimport | |
| 110 import dwtx.jface.text.IDocumentListener; // packageimport | |
| 111 import dwtx.jface.text.PaintManager; // packageimport | |
| 112 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport | |
| 113 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport | |
| 114 import dwtx.jface.text.IDocumentExtension3; // packageimport | |
| 115 import dwtx.jface.text.Position; // packageimport | |
| 116 import dwtx.jface.text.TextMessages; // packageimport | |
| 117 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport | |
| 118 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport | |
| 119 import dwtx.jface.text.IPositionUpdater; // packageimport | |
| 120 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
| 121 import dwtx.jface.text.ListLineTracker; // packageimport | |
| 122 import dwtx.jface.text.ITextInputListener; // packageimport | |
| 123 import dwtx.jface.text.BadPositionCategoryException; // packageimport | |
| 124 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
| 125 import dwtx.jface.text.IInputChangedListener; // packageimport | |
| 126 import dwtx.jface.text.ITextOperationTarget; // packageimport | |
| 127 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
| 128 import dwtx.jface.text.ITextViewerExtension7; // packageimport | |
| 129 import dwtx.jface.text.IInformationControlExtension5; // packageimport | |
| 130 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport | |
| 131 import dwtx.jface.text.JFaceTextUtil; // packageimport | |
| 132 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
| 133 import dwtx.jface.text.TabsToSpacesConverter; // packageimport | |
| 134 import dwtx.jface.text.CursorLinePainter; // packageimport | |
| 135 import dwtx.jface.text.ITextHoverExtension; // packageimport | |
| 136 import dwtx.jface.text.IEventConsumer; // packageimport | |
| 137 import dwtx.jface.text.IDocument; // packageimport | |
| 138 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport | |
| 139 import dwtx.jface.text.DocumentCommand; // packageimport | |
| 140 import dwtx.jface.text.TypedPosition; // packageimport | |
| 141 import dwtx.jface.text.IEditingSupportRegistry; // packageimport | |
| 142 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport | |
| 143 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport | |
| 144 import dwtx.jface.text.IEditingSupport; // packageimport | |
| 145 import dwtx.jface.text.IMarkSelection; // packageimport | |
| 146 import dwtx.jface.text.ISlaveDocumentManager; // packageimport | |
| 147 import dwtx.jface.text.DocumentEvent; // packageimport | |
| 148 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
| 149 import dwtx.jface.text.ITextStore; // packageimport | |
| 150 import dwtx.jface.text.JFaceTextMessages; // packageimport | |
| 151 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport | |
| 152 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport | |
| 153 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport | |
| 154 import dwtx.jface.text.TextAttribute; // packageimport | |
| 155 import dwtx.jface.text.ITextViewerExtension4; // packageimport | |
| 156 import dwtx.jface.text.ITypedRegion; // packageimport | |
| 157 | |
| 158 | |
| 129 | 159 import dwt.dwthelper.utils; |
| 160 | |
| 161 import java.util.regex.Matcher; | |
| 162 import java.util.regex.Pattern; | |
| 163 import java.util.regex.PatternSyntaxException; | |
| 164 | |
| 165 import dwtx.core.runtime.Assert; | |
| 166 | |
| 167 | |
| 168 /** | |
| 169 * Provides search and replace operations on | |
| 170 * {@link dwtx.jface.text.IDocument}. | |
| 171 * <p> | |
| 172 * Replaces | |
| 173 * {@link dwtx.jface.text.IDocument#search(int, String, bool, bool, bool)}. | |
| 174 * | |
| 175 * @since 3.0 | |
| 176 */ | |
| 177 public class FindReplaceDocumentAdapter : CharSequence { | |
| 178 | |
| 179 /** | |
| 180 * Internal type for operation codes. | |
| 181 */ | |
| 182 private static class FindReplaceOperationCode { | |
| 183 } | |
| 184 | |
| 185 // Find/replace operation codes. | |
| 147 | 186 private static const FindReplaceOperationCode FIND_FIRST= new FindReplaceOperationCode(); |
| 187 private static const FindReplaceOperationCode FIND_NEXT= new FindReplaceOperationCode(); | |
| 188 private static const FindReplaceOperationCode REPLACE= new FindReplaceOperationCode(); | |
| 189 private static const FindReplaceOperationCode REPLACE_FIND_NEXT= new FindReplaceOperationCode(); | |
| 129 | 190 |
| 191 /** | |
| 192 * Retain case mode constants. | |
| 193 * @since 3.4 | |
| 194 */ | |
| 147 | 195 private static const int RC_MIXED= 0; |
| 196 private static const int RC_UPPER= 1; | |
| 197 private static const int RC_LOWER= 2; | |
| 198 private static const int RC_FIRSTUPPER= 3; | |
| 129 | 199 |
| 200 | |
| 201 /** | |
| 202 * The adapted document. | |
| 203 */ | |
| 204 private IDocument fDocument; | |
| 205 | |
| 206 /** | |
| 207 * State for findReplace. | |
| 208 */ | |
| 209 private FindReplaceOperationCode fFindReplaceState= null; | |
| 210 | |
| 211 /** | |
| 212 * The matcher used in findReplace. | |
| 213 */ | |
| 214 private Matcher fFindReplaceMatcher; | |
| 215 | |
| 216 /** | |
| 217 * The match offset from the last findReplace call. | |
| 218 */ | |
| 219 private int fFindReplaceMatchOffset; | |
|
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220 |
| 129 | 221 /** |
| 222 * Retain case mode | |
| 223 */ | |
| 224 private int fRetainCaseMode; | |
| 225 | |
| 226 /** | |
| 227 * Constructs a new find replace document adapter. | |
| 228 * | |
| 229 * @param document the adapted document | |
| 230 */ | |
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231 public this(IDocument document) { |
| 129 | 232 Assert.isNotNull(document); |
| 233 fDocument= document; | |
| 234 } | |
| 235 | |
| 236 /** | |
| 237 * Returns the location of a given string in this adapter's document based on a set of search criteria. | |
| 238 * | |
| 239 * @param startOffset document offset at which search starts | |
| 240 * @param findString the string to find | |
| 241 * @param forwardSearch the search direction | |
| 242 * @param caseSensitive indicates whether lower and upper case should be distinguished | |
| 243 * @param wholeWord indicates whether the findString should be limited by white spaces as | |
| 244 * defined by Character.isWhiteSpace. Must not be used in combination with <code>regExSearch</code>. | |
| 245 * @param regExSearch if <code>true</code> findString represents a regular expression | |
| 246 * Must not be used in combination with <code>wholeWord</code>. | |
| 247 * @return the find or replace region or <code>null</code> if there was no match | |
| 248 * @throws BadLocationException if startOffset is an invalid document offset | |
| 249 * @throws PatternSyntaxException if a regular expression has invalid syntax | |
| 250 */ | |
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251 public IRegion find(int startOffset, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { |
| 129 | 252 Assert.isTrue(!(regExSearch && wholeWord)); |
| 253 | |
| 254 // Adjust offset to special meaning of -1 | |
| 255 if (startOffset is -1 && forwardSearch) | |
| 256 startOffset= 0; | |
| 257 if (startOffset is -1 && !forwardSearch) | |
| 258 startOffset= length() - 1; | |
| 259 | |
| 260 return findReplace(FIND_FIRST, startOffset, findString, null, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 261 } | |
| 262 | |
| 263 /** | |
| 264 * Stateful findReplace executes a FIND, REPLACE, REPLACE_FIND or FIND_FIRST operation. | |
| 265 * In case of REPLACE and REPLACE_FIND it sends a <code>DocumentEvent</code> to all | |
| 266 * registered <code>IDocumentListener</code>. | |
| 267 * | |
| 268 * @param startOffset document offset at which search starts | |
| 269 * this value is only used in the FIND_FIRST operation and otherwise ignored | |
| 270 * @param findString the string to find | |
| 271 * this value is only used in the FIND_FIRST operation and otherwise ignored | |
| 272 * @param replaceText the string to replace the current match | |
| 273 * this value is only used in the REPLACE and REPLACE_FIND operations and otherwise ignored | |
| 274 * @param forwardSearch the search direction | |
| 275 * @param caseSensitive indicates whether lower and upper case should be distinguished | |
| 276 * @param wholeWord indicates whether the findString should be limited by white spaces as | |
| 277 * defined by Character.isWhiteSpace. Must not be used in combination with <code>regExSearch</code>. | |
| 278 * @param regExSearch if <code>true</code> this operation represents a regular expression | |
| 279 * Must not be used in combination with <code>wholeWord</code>. | |
| 280 * @param operationCode specifies what kind of operation is executed | |
| 281 * @return the find or replace region or <code>null</code> if there was no match | |
| 282 * @throws BadLocationException if startOffset is an invalid document offset | |
| 283 * @throws IllegalStateException if a REPLACE or REPLACE_FIND operation is not preceded by a successful FIND operation | |
| 284 * @throws PatternSyntaxException if a regular expression has invalid syntax | |
| 285 */ | |
| 156 | 286 private IRegion findReplace(FindReplaceOperationCode operationCode, int startOffset, String findString, String replaceText, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { |
| 129 | 287 |
| 288 // Validate option combinations | |
| 289 Assert.isTrue(!(regExSearch && wholeWord)); | |
| 290 | |
| 291 // Validate state | |
| 292 if ((operationCode is REPLACE || operationCode is REPLACE_FIND_NEXT) && (fFindReplaceState !is FIND_FIRST && fFindReplaceState !is FIND_NEXT)) | |
| 293 throw new IllegalStateException("illegal findReplace state: cannot replace without preceding find"); //$NON-NLS-1$ | |
| 294 | |
| 295 if (operationCode is FIND_FIRST) { | |
| 296 // Reset | |
| 297 | |
| 298 if (findString is null || findString.length() is 0) | |
| 299 return null; | |
| 300 | |
| 301 // Validate start offset | |
| 302 if (startOffset < 0 || startOffset >= length()) | |
| 303 throw new BadLocationException(); | |
| 304 | |
| 305 int patternFlags= 0; | |
| 306 | |
| 307 if (regExSearch) { | |
| 308 patternFlags |= Pattern.MULTILINE; | |
| 309 findString= substituteLinebreak(findString); | |
| 310 } | |
| 311 | |
| 312 if (!caseSensitive) | |
| 313 patternFlags |= Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE; | |
| 314 | |
| 315 if (wholeWord) | |
| 316 findString= "\\b" + findString + "\\b"; //$NON-NLS-1$ //$NON-NLS-2$ | |
| 317 | |
| 318 if (!regExSearch && !wholeWord) | |
| 319 findString= asRegPattern(findString); | |
| 320 | |
| 321 fFindReplaceMatchOffset= startOffset; | |
| 322 if (fFindReplaceMatcher !is null && fFindReplaceMatcher.pattern().pattern().equals(findString) && fFindReplaceMatcher.pattern().flags() is patternFlags) { | |
| 323 /* | |
| 324 * Commented out for optimization: | |
| 325 * The call is not needed since FIND_FIRST uses find(int) which resets the matcher | |
| 326 */ | |
| 327 // fFindReplaceMatcher.reset(); | |
| 328 } else { | |
| 329 Pattern pattern= Pattern.compile(findString, patternFlags); | |
| 330 fFindReplaceMatcher= pattern.matcher(this); | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 // Set state | |
| 335 fFindReplaceState= operationCode; | |
| 336 | |
| 337 if (operationCode is REPLACE || operationCode is REPLACE_FIND_NEXT) { | |
| 338 if (regExSearch) { | |
| 339 Pattern pattern= fFindReplaceMatcher.pattern(); | |
| 340 String prevMatch= fFindReplaceMatcher.group(); | |
| 341 try { | |
| 342 replaceText= interpretReplaceEscapes(replaceText, prevMatch); | |
| 343 Matcher replaceTextMatcher= pattern.matcher(prevMatch); | |
| 344 replaceText= replaceTextMatcher.replaceFirst(replaceText); | |
| 345 } catch (IndexOutOfBoundsException ex) { | |
| 346 throw new PatternSyntaxException(ex.getLocalizedMessage(), replaceText, -1); | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 int offset= fFindReplaceMatcher.start(); | |
| 351 int length= fFindReplaceMatcher.group().length(); | |
| 352 | |
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353 if (cast(IRepairableDocumentExtension)fDocument |
| 134 | 354 && (cast(IRepairableDocumentExtension)fDocument).isLineInformationRepairNeeded(offset, length, replaceText)) { |
| 129 | 355 String message= TextMessages.getString("FindReplaceDocumentAdapter.incompatibleLineDelimiter"); //$NON-NLS-1$ |
| 356 throw new PatternSyntaxException(message, replaceText, offset); | |
| 357 } | |
| 358 | |
| 359 fDocument.replace(offset, length, replaceText); | |
| 360 | |
| 361 if (operationCode is REPLACE) { | |
| 362 return new Region(offset, replaceText.length()); | |
| 363 } | |
| 364 } | |
| 365 | |
| 366 if (operationCode !is REPLACE) { | |
| 367 if (forwardSearch) { | |
| 368 | |
| 369 bool found= false; | |
| 370 if (operationCode is FIND_FIRST) | |
| 371 found= fFindReplaceMatcher.find(startOffset); | |
| 372 else | |
| 373 found= fFindReplaceMatcher.find(); | |
| 374 | |
| 375 if (operationCode is REPLACE_FIND_NEXT) | |
| 376 fFindReplaceState= FIND_NEXT; | |
| 377 | |
| 378 if (found && fFindReplaceMatcher.group().length() > 0) | |
| 379 return new Region(fFindReplaceMatcher.start(), fFindReplaceMatcher.group().length()); | |
| 380 return null; | |
| 381 } | |
| 382 | |
| 383 // backward search | |
| 384 bool found= fFindReplaceMatcher.find(0); | |
| 385 int index= -1; | |
| 386 int length= -1; | |
| 387 while (found && fFindReplaceMatcher.start() + fFindReplaceMatcher.group().length() <= fFindReplaceMatchOffset + 1) { | |
| 388 index= fFindReplaceMatcher.start(); | |
| 389 length= fFindReplaceMatcher.group().length(); | |
| 390 found= fFindReplaceMatcher.find(index + 1); | |
| 391 } | |
| 392 fFindReplaceMatchOffset= index; | |
| 393 if (index > -1) { | |
| 394 // must set matcher to correct position | |
| 395 fFindReplaceMatcher.find(index); | |
| 396 return new Region(index, length); | |
| 397 } | |
| 398 return null; | |
| 399 } | |
| 400 | |
| 401 return null; | |
| 402 } | |
| 403 | |
| 404 /** | |
| 405 * Substitutes \R in a regex find pattern with (?>\r\n?|\n) | |
|
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406 * |
| 129 | 407 * @param findString the original find pattern |
| 408 * @return the transformed find pattern | |
| 409 * @throws PatternSyntaxException if \R is added at an illegal position (e.g. in a character set) | |
| 410 * @since 3.4 | |
| 411 */ | |
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412 private String substituteLinebreak(String findString) { |
| 129 | 413 int length= findString.length(); |
| 414 StringBuffer buf= new StringBuffer(length); | |
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415 |
| 129 | 416 int inCharGroup= 0; |
| 417 int inBraces= 0; | |
| 418 bool inQuote= false; | |
| 419 for (int i= 0; i < length; i++) { | |
| 420 char ch= findString.charAt(i); | |
| 421 switch (ch) { | |
| 422 case '[': | |
| 423 buf.append(ch); | |
| 424 if (! inQuote) | |
| 425 inCharGroup++; | |
| 426 break; | |
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427 |
| 129 | 428 case ']': |
| 429 buf.append(ch); | |
| 430 if (! inQuote) | |
| 431 inCharGroup--; | |
| 432 break; | |
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433 |
| 129 | 434 case '{': |
| 435 buf.append(ch); | |
| 436 if (! inQuote && inCharGroup is 0) | |
| 437 inBraces++; | |
| 438 break; | |
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439 |
| 129 | 440 case '}': |
| 441 buf.append(ch); | |
| 442 if (! inQuote && inCharGroup is 0) | |
| 443 inBraces--; | |
| 444 break; | |
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445 |
| 129 | 446 case '\\': |
| 447 if (i + 1 < length) { | |
| 448 char ch1= findString.charAt(i + 1); | |
| 449 if (inQuote) { | |
| 450 if (ch1 is 'E') | |
| 451 inQuote= false; | |
| 452 buf.append(ch).append(ch1); | |
| 453 i++; | |
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454 |
| 129 | 455 } else if (ch1 is 'R') { |
| 456 if (inCharGroup > 0 || inBraces > 0) { | |
| 457 String msg= TextMessages.getString("FindReplaceDocumentAdapter.illegalLinebreak"); //$NON-NLS-1$ | |
| 458 throw new PatternSyntaxException(msg, findString, i); | |
| 459 } | |
| 460 buf.append("(?>\\r\\n?|\\n)"); //$NON-NLS-1$ | |
| 461 i++; | |
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462 |
| 129 | 463 } else { |
| 464 if (ch1 is 'Q') { | |
| 465 inQuote= true; | |
| 466 } | |
| 467 buf.append(ch).append(ch1); | |
| 468 i++; | |
| 469 } | |
| 470 } else { | |
| 471 buf.append(ch); | |
| 472 } | |
| 473 break; | |
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474 |
| 129 | 475 default: |
| 476 buf.append(ch); | |
| 477 break; | |
| 478 } | |
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479 |
| 129 | 480 } |
| 481 return buf.toString(); | |
| 482 } | |
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483 |
| 129 | 484 /** |
| 485 * Interprets current Retain Case mode (all upper-case,all lower-case,capitalized or mixed) | |
| 486 * and appends the character <code>ch</code> to <code>buf</code> after processing. | |
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487 * |
| 129 | 488 * @param buf the output buffer |
| 489 * @param ch the character to process | |
| 490 * @since 3.4 | |
| 491 */ | |
| 492 private void interpretRetainCase(StringBuffer buf, char ch) { | |
| 493 if (fRetainCaseMode is RC_UPPER) | |
| 494 buf.append(Character.toUpperCase(ch)); | |
| 495 else if (fRetainCaseMode is RC_LOWER) | |
| 496 buf.append(Character.toLowerCase(ch)); | |
| 497 else if (fRetainCaseMode is RC_FIRSTUPPER) { | |
| 498 buf.append(Character.toUpperCase(ch)); | |
| 499 fRetainCaseMode= RC_MIXED; | |
| 500 } else | |
| 501 buf.append(ch); | |
| 502 } | |
| 503 | |
| 504 /** | |
| 505 * Interprets escaped characters in the given replace pattern. | |
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506 * |
| 129 | 507 * @param replaceText the replace pattern |
| 508 * @param foundText the found pattern to be replaced | |
| 509 * @return a replace pattern with escaped characters substituted by the respective characters | |
| 510 * @since 3.4 | |
| 511 */ | |
| 512 private String interpretReplaceEscapes(String replaceText, String foundText) { | |
| 513 int length= replaceText.length(); | |
| 514 bool inEscape= false; | |
| 515 StringBuffer buf= new StringBuffer(length); | |
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516 |
| 129 | 517 /* every string we did not check looks mixed at first |
| 518 * so initialize retain case mode with RC_MIXED | |
| 519 */ | |
| 520 fRetainCaseMode= RC_MIXED; | |
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521 |
| 129 | 522 for (int i= 0; i < length; i++) { |
| 523 final char ch= replaceText.charAt(i); | |
| 524 if (inEscape) { | |
| 525 i= interpretReplaceEscape(ch, i, buf, replaceText, foundText); | |
| 526 inEscape= false; | |
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527 |
| 129 | 528 } else if (ch is '\\') { |
| 529 inEscape= true; | |
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530 |
| 129 | 531 } else if (ch is '$') { |
| 532 buf.append(ch); | |
| 533 | |
| 534 /* | |
| 535 * Feature in java.util.regex.Matcher#replaceFirst(String): | |
| 536 * $00, $000, etc. are interpreted as $0 and | |
| 537 * $01, $001, etc. are interpreted as $1, etc. . | |
| 538 * If we support \0 as replacement pattern for capturing group 0, | |
| 539 * it would not be possible any more to write a replacement pattern | |
| 540 * that appends 0 to a capturing group (like $0\0). | |
| 541 * The fix is to interpret \00 and $00 as $0\0, and | |
| 542 * \01 and $01 as $0\1, etc. | |
| 543 */ | |
| 544 if (i + 2 < length) { | |
| 545 char ch1= replaceText.charAt(i + 1); | |
| 546 char ch2= replaceText.charAt(i + 2); | |
| 547 if (ch1 is '0' && '0' <= ch2 && ch2 <= '9') { | |
| 548 buf.append("0\\"); //$NON-NLS-1$ | |
| 549 i++; // consume the 0 | |
| 550 } | |
| 551 } | |
| 552 } else { | |
| 553 interpretRetainCase(buf, ch); | |
| 554 } | |
| 555 } | |
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556 |
| 129 | 557 if (inEscape) { |
| 558 // '\' as last character is invalid, but we still add it to get an error message | |
| 559 buf.append('\\'); | |
| 560 } | |
| 561 return buf.toString(); | |
| 562 } | |
| 563 | |
| 564 /** | |
| 565 * Interprets the escaped character <code>ch</code> at offset <code>i</code> | |
| 566 * of the <code>replaceText</code> and appends the interpretation to <code>buf</code>. | |
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567 * |
| 129 | 568 * @param ch the escaped character |
| 569 * @param i the offset | |
| 570 * @param buf the output buffer | |
| 571 * @param replaceText the original replace pattern | |
| 572 * @param foundText the found pattern to be replaced | |
| 573 * @return the new offset | |
| 574 * @since 3.4 | |
| 575 */ | |
| 156 | 576 private int interpretReplaceEscape(char ch, int i, StringBuffer buf, String replaceText, String foundText) { |
| 129 | 577 int length= replaceText.length(); |
| 578 switch (ch) { | |
| 579 case 'r': | |
| 580 buf.append('\r'); | |
| 581 break; | |
| 582 case 'n': | |
| 583 buf.append('\n'); | |
| 584 break; | |
| 585 case 't': | |
| 586 buf.append('\t'); | |
| 587 break; | |
| 588 case 'f': | |
| 589 buf.append('\f'); | |
| 590 break; | |
| 591 case 'a': | |
| 592 buf.append('\u0007'); | |
| 593 break; | |
| 594 case 'e': | |
| 595 buf.append('\u001B'); | |
| 596 break; | |
| 597 case 'R': //see http://www.unicode.org/unicode/reports/tr18/#Line_Boundaries | |
| 598 buf.append(TextUtilities.getDefaultLineDelimiter(fDocument)); | |
| 599 break; | |
| 600 /* | |
| 601 * \0 for octal is not supported in replace string, since it | |
| 602 * would conflict with capturing group \0, etc. | |
| 603 */ | |
| 604 case '0': | |
| 605 buf.append('$').append(ch); | |
| 606 /* | |
| 607 * See explanation in "Feature in java.util.regex.Matcher#replaceFirst(String)" | |
| 608 * in interpretReplaceEscape(String) above. | |
| 609 */ | |
| 610 if (i + 1 < length) { | |
| 611 char ch1= replaceText.charAt(i + 1); | |
| 612 if ('0' <= ch1 && ch1 <= '9') { | |
| 613 buf.append('\\'); | |
| 614 } | |
| 615 } | |
| 616 break; | |
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617 |
| 129 | 618 case '1': |
| 619 case '2': | |
| 620 case '3': | |
| 621 case '4': | |
| 622 case '5': | |
| 623 case '6': | |
| 624 case '7': | |
| 625 case '8': | |
| 626 case '9': | |
| 627 buf.append('$').append(ch); | |
| 628 break; | |
| 629 | |
| 630 case 'c': | |
| 631 if (i + 1 < length) { | |
| 632 char ch1= replaceText.charAt(i + 1); | |
| 134 | 633 interpretRetainCase(buf, cast(wchar)(ch1 ^ 64)); |
| 129 | 634 i++; |
| 635 } else { | |
| 636 String msg= TextMessages.getFormattedString("FindReplaceDocumentAdapter.illegalControlEscape", "\\c"); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 637 throw new PatternSyntaxException(msg, replaceText, i); | |
| 638 } | |
| 639 break; | |
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640 |
| 129 | 641 case 'x': |
| 642 if (i + 2 < length) { | |
| 643 int parsedInt; | |
| 644 try { | |
| 645 parsedInt= Integer.parseInt(replaceText.substring(i + 1, i + 3), 16); | |
| 646 if (parsedInt < 0) | |
| 647 throw new NumberFormatException(); | |
| 648 } catch (NumberFormatException e) { | |
| 649 String msg= TextMessages.getFormattedString("FindReplaceDocumentAdapter.illegalHexEscape", replaceText.substring(i - 1, i + 3)); //$NON-NLS-1$ | |
| 650 throw new PatternSyntaxException(msg, replaceText, i); | |
| 651 } | |
| 134 | 652 interpretRetainCase(buf, cast(wchar) parsedInt); |
| 129 | 653 i+= 2; |
| 654 } else { | |
| 655 String msg= TextMessages.getFormattedString("FindReplaceDocumentAdapter.illegalHexEscape", replaceText.substring(i - 1, length)); //$NON-NLS-1$ | |
| 656 throw new PatternSyntaxException(msg, replaceText, i); | |
| 657 } | |
| 658 break; | |
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659 |
| 129 | 660 case 'u': |
| 661 if (i + 4 < length) { | |
| 662 int parsedInt; | |
| 663 try { | |
| 664 parsedInt= Integer.parseInt(replaceText.substring(i + 1, i + 5), 16); | |
| 665 if (parsedInt < 0) | |
| 666 throw new NumberFormatException(); | |
| 667 } catch (NumberFormatException e) { | |
| 668 String msg= TextMessages.getFormattedString("FindReplaceDocumentAdapter.illegalUnicodeEscape", replaceText.substring(i - 1, i + 5)); //$NON-NLS-1$ | |
| 669 throw new PatternSyntaxException(msg, replaceText, i); | |
| 670 } | |
| 134 | 671 interpretRetainCase(buf, cast(wchar) parsedInt); |
| 129 | 672 i+= 4; |
| 673 } else { | |
| 674 String msg= TextMessages.getFormattedString("FindReplaceDocumentAdapter.illegalUnicodeEscape", replaceText.substring(i - 1, length)); //$NON-NLS-1$ | |
| 675 throw new PatternSyntaxException(msg, replaceText, i); | |
| 676 } | |
| 677 break; | |
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678 |
| 129 | 679 case 'C': |
| 680 if(foundText.toUpperCase().equals(foundText)) // is whole match upper-case? | |
| 681 fRetainCaseMode= RC_UPPER; | |
| 682 else if (foundText.toLowerCase().equals(foundText)) // is whole match lower-case? | |
| 683 fRetainCaseMode= RC_LOWER; | |
| 684 else if(Character.isUpperCase(foundText.charAt(0))) // is first character upper-case? | |
| 685 fRetainCaseMode= RC_FIRSTUPPER; | |
| 686 else | |
| 687 fRetainCaseMode= RC_MIXED; | |
| 688 break; | |
| 689 | |
| 690 default: | |
| 691 // unknown escape k: append uninterpreted \k | |
| 692 buf.append('\\').append(ch); | |
| 693 break; | |
| 694 } | |
| 695 return i; | |
| 696 } | |
| 697 | |
| 698 /** | |
| 699 * Converts a non-regex string to a pattern | |
| 700 * that can be used with the regex search engine. | |
| 701 * | |
| 702 * @param string the non-regex pattern | |
| 703 * @return the string converted to a regex pattern | |
| 704 */ | |
| 705 private String asRegPattern(String string) { | |
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706 StringBuffer out_= new StringBuffer(string.length()); |
| 129 | 707 bool quoting= false; |
| 708 | |
| 709 for (int i= 0, length= string.length(); i < length; i++) { | |
| 710 char ch= string.charAt(i); | |
| 711 if (ch is '\\') { | |
| 712 if (quoting) { | |
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713 out_.append("\\E"); //$NON-NLS-1$ |
| 129 | 714 quoting= false; |
| 715 } | |
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716 out_.append("\\\\"); //$NON-NLS-1$ |
| 129 | 717 continue; |
| 718 } | |
| 719 if (!quoting) { | |
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720 out_.append("\\Q"); //$NON-NLS-1$ |
| 129 | 721 quoting= true; |
| 722 } | |
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723 out_.append(ch); |
| 129 | 724 } |
| 725 if (quoting) | |
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726 out_.append("\\E"); //$NON-NLS-1$ |
| 129 | 727 |
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728 return out_.toString(); |
| 129 | 729 } |
| 730 | |
| 731 /** | |
| 732 * Substitutes the previous match with the given text. | |
| 733 * Sends a <code>DocumentEvent</code> to all registered <code>IDocumentListener</code>. | |
| 734 * | |
| 735 * @param text the substitution text | |
| 736 * @param regExReplace if <code>true</code> <code>text</code> represents a regular expression | |
| 737 * @return the replace region or <code>null</code> if there was no match | |
| 738 * @throws BadLocationException if startOffset is an invalid document offset | |
| 739 * @throws IllegalStateException if a REPLACE or REPLACE_FIND operation is not preceded by a successful FIND operation | |
| 740 * @throws PatternSyntaxException if a regular expression has invalid syntax | |
| 741 * | |
| 742 * @see DocumentEvent | |
| 743 * @see IDocumentListener | |
| 744 */ | |
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745 public IRegion replace(String text, bool regExReplace) { |
| 129 | 746 return findReplace(REPLACE, -1, null, text, false, false, false, regExReplace); |
| 747 } | |
| 748 | |
| 749 // ---------- CharSequence implementation ---------- | |
| 750 | |
| 751 /* | |
| 752 * @see java.lang.CharSequence#length() | |
| 753 */ | |
| 754 public int length() { | |
| 755 return fDocument.getLength(); | |
| 756 } | |
| 757 | |
| 758 /* | |
| 759 * @see java.lang.CharSequence#charAt(int) | |
| 760 */ | |
| 761 public char charAt(int index) { | |
| 762 try { | |
| 763 return fDocument.getChar(index); | |
| 764 } catch (BadLocationException e) { | |
| 765 throw new IndexOutOfBoundsException(); | |
| 766 } | |
| 767 } | |
| 768 | |
| 769 /* | |
| 770 * @see java.lang.CharSequence#subSequence(int, int) | |
| 771 */ | |
| 772 public CharSequence subSequence(int start, int end) { | |
| 773 try { | |
| 774 return fDocument.get(start, end - start); | |
| 775 } catch (BadLocationException e) { | |
| 776 throw new IndexOutOfBoundsException(); | |
| 777 } | |
| 778 } | |
| 779 | |
| 780 /* | |
| 781 * @see java.lang.Object#toString() | |
| 782 */ | |
| 783 public String toString() { | |
| 784 return fDocument.get(); | |
| 785 } | |
| 786 } |