Replace TextMatcher in favor of extended StringMatcher

The functionality of the TextMatcher has been integrated in the
StringMatcher class from the Equinox bundle, which allows this class to
be used without a dependency to the Eclipse UI bundle.

Note: To get the same behavior as the TextMatcher, one needs to call
matchWords() instead of match(). Furthermore, the pattern needs to be
trimmed explicitly, where needed.

Contributes to
#2567

Author: ptziegler

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/dialogs/FilteredList.java

@@ -23,6 +23,7 @@
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.core.text.StringMatcher;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.SWTException;
@@ -36,7 +37,6 @@
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableItem;
 import org.eclipse.ui.internal.WorkbenchMessages;
-import org.eclipse.ui.internal.misc.TextMatcher;
 import org.eclipse.ui.internal.util.Util;
 import org.eclipse.ui.progress.WorkbenchJob;
 
@@ -73,16 +73,16 @@ public interface FilterMatcher {
 	}
 
 	private class DefaultFilterMatcher implements FilterMatcher {
-		private TextMatcher fMatcher;
+		private StringMatcher fMatcher;
 
 		@Override
 		public void setFilter(String pattern, boolean ignoreCase, boolean ignoreWildCards) {
-			fMatcher = new TextMatcher(pattern + '*', ignoreCase, ignoreWildCards);
+			fMatcher = new StringMatcher(pattern.trim() + '*', ignoreCase, ignoreWildCards);
 		}
 
 		@Override
 		public boolean match(Object element) {
-			return fMatcher.match(fLabelProvider.getText(element));
+			return fMatcher.matchWords(fLabelProvider.getText(element));
 		}
 	}
 

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/dialogs/PatternFilter.java

@@ -17,13 +17,13 @@
 
 import java.util.HashMap;
 import java.util.Map;
+import org.eclipse.core.text.StringMatcher;
 import org.eclipse.jface.viewers.AbstractTreeViewer;
 import org.eclipse.jface.viewers.ContentViewer;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerFilter;
-import org.eclipse.ui.internal.misc.TextMatcher;
 
 /**
  * A filter used in conjunction with <code>FilteredTree</code>. In order to
@@ -57,7 +57,7 @@ public class PatternFilter extends ViewerFilter {
 	/**
 	 * The string pattern matcher used for this pattern filter.
 	 */
-	private TextMatcher matcher;
+	private StringMatcher matcher;
 
 	private boolean useEarlyReturnIfMatcherIsNull = true;
 
@@ -173,7 +173,7 @@ public void setPattern(String patternString) {
 			if (includeLeadingWildcard) {
 				pattern = "*" + pattern; //$NON-NLS-1$
 			}
-			matcher = new TextMatcher(pattern, true, false);
+			matcher = new StringMatcher(pattern.trim(), true, false);
 		}
 	}
 
@@ -197,7 +197,7 @@ private boolean match(String string) {
 		if (matcher == null) {
 			return true;
 		}
-		return matcher.match(string);
+		return matcher.matchWords(string);
 	}
 
 	/**
@@ -289,7 +289,7 @@ protected boolean wordMatches(String text) {
 		}
 
 		// Otherwise check if any of the words of the text matches
-		String[] words = TextMatcher.getWords(text);
+		String[] words = StringMatcher.getWords(text);
 		for (String word : words) {
 			if (!match(word)) {
 				return false;

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/dialogs/SearchPattern.java

@@ -13,8 +13,8 @@
  *******************************************************************************/
 package org.eclipse.ui.dialogs;
 
+import org.eclipse.core.text.StringMatcher;
 import org.eclipse.jface.util.Util;
-import org.eclipse.ui.internal.misc.TextMatcher;
 
 /**
  * A search pattern defines how search results are found.
@@ -120,7 +120,7 @@ public class SearchPattern {
 
 	private String initialPattern;
 
-	private TextMatcher stringMatcher;
+	private StringMatcher stringMatcher;
 
 	private static final char START_SYMBOL = '>';
 
@@ -200,7 +200,7 @@ public void setPattern(String stringPattern) {
 		initializePatternAndMatchRule(stringPattern);
 		matchRule = matchRule & this.allowedRules;
 		if (matchRule == RULE_PATTERN_MATCH) {
-			stringMatcher = new TextMatcher(this.stringPattern, true, false);
+			stringMatcher = new StringMatcher(this.stringPattern.trim(), true, false);
 		}
 	}
 
@@ -219,7 +219,7 @@ public boolean matches(String text) {
 		case RULE_BLANK_MATCH:
 			return true;
 		case RULE_PATTERN_MATCH:
-			return stringMatcher.match(text);
+			return stringMatcher.matchWords(text);
 		case RULE_EXACT_MATCH:
 			return stringPattern.equalsIgnoreCase(text);
 		case RULE_CAMELCASE_MATCH:

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/about/AboutPluginsPage.java

@@ -39,6 +39,7 @@
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.core.runtime.jobs.Job;
+import org.eclipse.core.text.StringMatcher;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.layout.GridDataFactory;
 import org.eclipse.jface.util.ConfigureColumns;
@@ -73,7 +74,6 @@
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPlugin;
 import org.eclipse.ui.internal.misc.StatusUtil;
-import org.eclipse.ui.internal.misc.TextMatcher;
 import org.eclipse.ui.internal.util.BundleUtility;
 import org.eclipse.ui.progress.WorkbenchJob;
 import org.eclipse.ui.statushandlers.StatusManager;
@@ -689,14 +689,14 @@ public void setAscending(boolean ascending) {
 }
 class BundlePatternFilter extends ViewerFilter {
 
-	private TextMatcher matcher;
+	private StringMatcher matcher;
 
 	public void setPattern(String searchPattern) {
 		if (searchPattern == null || searchPattern.isEmpty()) {
 			this.matcher = null;
 		} else {
 			String pattern = "*" + searchPattern + "*"; //$NON-NLS-1$//$NON-NLS-2$
-			this.matcher = new TextMatcher(pattern, true, false);
+			this.matcher = new StringMatcher(pattern, true, false);
 		}
 	}
 
@@ -708,12 +708,12 @@ public boolean select(Viewer viewer, Object parentElement, Object element) {
 
 		if (element instanceof AboutBundleData) {
 			AboutBundleData data = (AboutBundleData) element;
-			return matcher.match(data.getName()) || matcher.match(data.getProviderName())
-					|| matcher.match(data.getId());
+			return matcher.matchWords(data.getName()) || matcher.matchWords(data.getProviderName())
+					|| matcher.matchWords(data.getId());
 		}
 		else if (element instanceof AboutBundleGroupData data) {
-			return matcher.match(data.getName()) || matcher.match(data.getProviderName())
-					|| matcher.match(data.getId());
+			return matcher.matchWords(data.getName()) || matcher.matchWords(data.getProviderName())
+					|| matcher.matchWords(data.getId());
 		}
 		return true;
 	}

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/misc/TextMatcher.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2019 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -37,7 +37,6 @@
 import org.eclipse.ui.tests.fieldassist.FieldAssistTestSuite;
 import org.eclipse.ui.tests.filteredtree.FilteredTreeTests;
 import org.eclipse.ui.tests.filteredtree.PatternFilterTest;
-import org.eclipse.ui.tests.filteredtree.TextMatcherTest;
 import org.eclipse.ui.tests.internal.InternalTestSuite;
 import org.eclipse.ui.tests.intro.IntroTestSuite;
 import org.eclipse.ui.tests.keys.KeysTestSuite;
@@ -91,7 +90,6 @@
 	ConcurrencyTestSuite.class,
 	FilteredTreeTests.class,
 	PatternFilterTest.class,
-	TextMatcherTest.class,
 	StatusHandlingTestSuite.class,
 	MenusTestSuite.class,
 	QuickAccessTestSuite.class,

tests/org.eclipse.ui.tests/Eclipse UI Tests/org/eclipse/ui/tests/UiTestSuite.java

@@ -117,6 +117,12 @@ public void testAddAndRemovePattern() {
 		applyPattern("0-0-0-0 name-*");
 		assertNumberOfTopLevelItems(1);
 
+		applyPattern(" 0-0-0-0 name-*");
+		assertNumberOfTopLevelItems(1);
+
+		applyPattern("0-0-0-0 name-* ");
+		assertNumberOfTopLevelItems(1);
+
 		applyPattern("0-0-0-0 name unknownWord");
 		assertNumberOfTopLevelItems(0);