Spell checking support in C/C++ editor. https://bugs.eclipse.org/bugs/show_bug.cgi?id=190512

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelBuilder2.java

@@ -116,8 +116,8 @@ public class CModelBuilder2 implements IContributedModelBuilder {
 		/*
 		 * @see org.eclipse.cdt.core.parser.IProblem#getArguments()
 		 */
-		public String getArguments() {
-			return fASTProblem.getArguments();
+		public String[] getArguments() {
+			return new String[] { fASTProblem.getArguments() };
 		}
 
 		/*

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPersistableProblem.java

@@ -0,0 +1,19 @@
+/*******************************************************************************
+ * Copyright (c) 2007 Google, Inc and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * 	   Sergey Prigogin (Google) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.core.parser;
+
+public interface IPersistableProblem extends IProblem {
+	/**
+	 * Returns the marker type associated to this problem, if it gets persisted into a marker.
+	 * @return the type of the marker which would be associated to the problem.
+	 */
+	String getMarkerType();
+}

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IProblem.java

@@ -50,7 +50,7 @@ public interface IProblem
 	 *
 	 * @return a map between parameter names and values.
 	 */
-	String getArguments();
+	String[] getArguments();
 
 	/**
 	 * Answer the file name in which the problem was found.

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/problem/BaseProblemFactory.java

@@ -12,34 +12,23 @@ package org.eclipse.cdt.internal.core.parser.problem;
 
 import org.eclipse.cdt.core.parser.IProblem;
 
-
 /**
  * @author jcamelon
  */
 public abstract class BaseProblemFactory {
-
 	protected final static String PROBLEM_PATTERN = "BaseProblemFactory.problemPattern"; //$NON-NLS-1$
 
-	public IProblem createProblem(int id, int start, int end, int line, char[] file, char[] arg, boolean warn, boolean error) {
+	public IProblem createProblem(int id, int start, int end, int line, char[] file, String[] arg,
+			boolean warn, boolean error) {
 		return new Problem( id, start, end, line, file, arg, warn, error);
 	} 
 
-	public boolean checkBitmask( int id, int bitmask )
-	{
-		return ( id & bitmask ) != 0; 
+	public boolean checkBitmask(int id, int bitmask) {
+		return (id & bitmask) != 0; 
 	}
 	
-	protected IProblem createInternalProblem( int id, int start, int end, int line, char [] file, char[] arg, boolean warn, boolean error )
-	{
-		return createProblem( id, start, end, line, file, arg, warn, error );
+	protected IProblem createInternalProblem( int id, int start, int end, int line, char[] file, String[] arg,
+			boolean warn, boolean error) {
+		return createProblem(id, start, end, line, file, arg, warn, error);
 	}
-
-	/**
-	 * @param id
-	 * @param arguments
-	 * @param line
-	 * @param file
-	 * @return
-	 */
-
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/problem/IProblemFactory.java

@@ -14,11 +14,9 @@ import org.eclipse.cdt.core.parser.IProblem;
 
 /**
  * @author jcamelon
- *
  */
 public interface IProblemFactory {
-
-	 public IProblem createProblem( int id, int start, int end, int line, char [] file, char[] arg, boolean warn, boolean error );
-	 public String getRequiredAttributesForId( int id );
-	
+	public IProblem createProblem(int id, int start, int end, int line, char[] file, String[] arg,
+			boolean warn, boolean error );
+	public String getRequiredAttributesForId(int id);
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/problem/Problem.java

@@ -20,11 +20,9 @@ import org.eclipse.cdt.internal.core.parser.ParserMessages;
 
 /**
  * @author jcamelon
- *
  */
 public class Problem implements IProblem {
-
-	private final char[] arg;
+	private final String[] arg;
 	private final int id;
 	private final int sourceStart;
 	private final int sourceEnd;
@@ -36,8 +34,8 @@ public class Problem implements IProblem {
 	
 	private String message = null;
 
-	public Problem( int id, int start, int end, int line, char [] file, char[] arg, boolean warn, boolean error )
-	{
+	public Problem( int id, int start, int end, int line, char[] file, String[] arg,
+			boolean warn, boolean error) {
 		this.id = id;
 		this.sourceStart = start;
 		this.sourceEnd = end;
@@ -48,7 +46,6 @@ public class Problem implements IProblem {
 		this.isError = error;
 	}
 
-
 	/* (non-Javadoc)
 	 * @see org.eclipse.cdt.core.parser.IProblem#getID()
 	 */
@@ -241,27 +238,26 @@ public class Problem implements IProblem {
 	}
 	protected final static String PROBLEM_PATTERN = "BaseProblemFactory.problemPattern"; //$NON-NLS-1$
 
-	public String getMessage()
-	{
+	public String getMessage() {
 		if( message != null )
 			return message;
 		
 		String msg = (String) errorMessages.get( new Integer(id) );
-		if( msg == null )
+		if (msg == null)
 			msg = "";  //$NON-NLS-1$
 		
-		if( arg != null ){
-			msg = MessageFormat.format( msg, new Object [] { new String(arg) } );
+		if (arg != null) {
+			msg = MessageFormat.format(msg, arg);
 		}
 		
-		Object [] args = null;
-		if (originatingFileName != null)
-			args = new Object []{ msg, new String( originatingFileName ), new Integer( lineNumber ) };
-		else
-			args = new Object []{ msg, new String(""), new Integer( lineNumber ) }; //$NON-NLS-1$
-		
-		message = ParserMessages.getFormattedString( PROBLEM_PATTERN, args ); 
+		String[] args = null;
+		if (originatingFileName != null) {
+			args = new String[] { msg, new String(originatingFileName), String.valueOf(lineNumber) };
+		} else {
+			args = new String[] { msg, "", String.valueOf(lineNumber) }; //$NON-NLS-1$
+		}
 		
+		message = ParserMessages.getFormattedString(PROBLEM_PATTERN, args); 
 		return message; 
 	}
 
@@ -269,15 +265,13 @@ public class Problem implements IProblem {
 	 * @see org.eclipse.cdt.core.parser.IProblem#checkCategory(int)
 	 */
 	public boolean checkCategory(int bitmask) {
-		return ((id & bitmask) != 0 );
+		return (id & bitmask) != 0;
 	}
 
-
 	/* (non-Javadoc)
 	 * @see org.eclipse.cdt.core.parser.IProblem#getArguments()
 	 */
-	public String getArguments() {
-		return arg != null ? String.valueOf(arg) : ""; //$NON-NLS-1$
+	public String[] getArguments() {
+		return arg;
 	}
-
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/ExpressionEvaluator.java

@@ -19,8 +19,7 @@ import org.eclipse.cdt.core.parser.util.CharArrayUtils;
 import org.eclipse.cdt.internal.core.parser.scanner2.BaseScanner.MacroData;
 
 public class ExpressionEvaluator {
-
-    private static char[] emptyCharArray = new char[0];
+    private static char[] EMPTY_CHAR_ARRAY = new char[0];
 
     // The context stack
     private static final int initSize = 8;
@@ -786,7 +785,7 @@ public class ExpressionEvaluator {
                 continue;
             } else if (c == ',') {
                 // empty arg
-                exp.definitions.put(arglist[currarg], emptyCharArray);
+                exp.definitions.put(arglist[currarg], EMPTY_CHAR_ARRAY);
                 continue;
             } else if (c == '(') {
                 ++parens;
@@ -810,7 +809,7 @@ public class ExpressionEvaluator {
                     break;
             }
 
-            char[] arg = emptyCharArray;
+            char[] arg = EMPTY_CHAR_ARRAY;
             int arglen = argend - argstart + 1;
             if (arglen > 0) {
                 arg = new char[arglen];

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/ScannerProblemFactory.java

@@ -24,31 +24,15 @@ public class ScannerProblemFactory extends BaseProblemFactory implements IProble
 	/* (non-Javadoc)
 	 * @see org.eclipse.cdt.internal.core.parser.IProblemFactory#createProblem(int, int, int, int, char[], java.lang.String, boolean, boolean)
 	 */
-	public IProblem createProblem(
-		int id,
-		int start,
-		int end,
-		int line,
-		char[] file,
-		char[] arg,
-		boolean warn,
-		boolean error)
-	{
-		if( checkBitmask( id, IProblem.INTERNAL_RELATED ) )  
-			return createInternalProblem( id, start, end, line, file, arg, warn, error );		
-		
-		if ( 	checkBitmask( id, IProblem.SCANNER_RELATED ) || 
-				checkBitmask( id, IProblem.PREPROCESSOR_RELATED ) )
-			return super.createProblem(
-				id,
-				start,
-				end,
-				line,
-				file,
-				arg,
-				warn,
-				error);
+	public IProblem createProblem(int id, int start, int end, int line,	char[] file, String[] arg,
+			boolean warn, boolean error) {
+		if (checkBitmask(id, IProblem.INTERNAL_RELATED))  
+			return createInternalProblem(id, start, end, line, file, arg, warn, error);		
 		
+		if (checkBitmask(id, IProblem.SCANNER_RELATED) || 
+				checkBitmask(id, IProblem.PREPROCESSOR_RELATED)) {
+			return super.createProblem(id, start, end, line, file, arg,	warn, error);
+		}				
 		return null;
 	}
 

core/org.eclipse.cdt.ui/META-INF/MANIFEST.MF

@@ -80,7 +80,8 @@ Require-Bundle: org.eclipse.ui.ide;bundle-version="[3.3.0,4.0.0)",
  org.eclipse.ui.navigator;bundle-version="[3.2.0,4.0.0)",
  org.eclipse.cdt.refactoring;bundle-version="[5.0.0,6.0.0)",
  org.eclipse.core.filesystem;bundle-version="[1.1.0,2.0.0)",
- org.eclipse.core.variables;bundle-version="[3.1.100,4.0.0)"
+ org.eclipse.core.variables;bundle-version="[3.1.100,4.0.0)",
+ org.eclipse.ltk.core.refactoring
 Eclipse-LazyStart: true
 Bundle-RequiredExecutionEnvironment: J2SE-1.4
 Import-Package: com.ibm.icu.text

core/org.eclipse.cdt.ui/build.properties

@@ -12,6 +12,7 @@ bin.includes = about.html,\
                plugin.xml,\
                icons/,\
                plugin.properties,\
+               dictionaries/,\
                templates/,\
                .,\
                META-INF/,\

core/org.eclipse.cdt.ui/plugin.properties

@@ -9,6 +9,7 @@
 #     IBM Corporation - initial API and implementation
 #     Markus Schorn (Wind River Systems)
 #     Anton Leherbauer (Wind River Systems)
+#     Sergey Prigogin (Google)
 ###############################################################################
 pluginName=C/C++ Development Tools UI
 providerName=Eclipse.org
@@ -344,7 +345,7 @@ Folding.label= F&olding
 cCompareFontDefiniton.label= C/C++ compare text font
 cCompareFontDefiniton.description= The C/C++ compare text font is used by Assembly compare/merge tools.
 asmCompareFontDefiniton.label= Assembly compare text font
-asmCompareFontDefiniton.description= The Asembly compare text font is used by Assembly compare/merge tools.
+asmCompareFontDefiniton.description= The Assembly compare text font is used by Assembly compare/merge tools.
 
 # External Search Editor
 
@@ -358,6 +359,13 @@ comment.contextType.name = Comment
 completionContributors=Content Assist Completion Contributor
 completionProposalComputer=Completion Proposal Computer
 
+# Quick fix
+quickFixProcessorExtensionPoint=Quick Fix Processor
+spellingQuickFixProcessor=Spelling Quick Fix Processor
+
+# Spelling
+cSpellingEngine.label=C/C++ spelling engine
+
 # Indexer Preference Name
 indexerPrefName=Indexer
 

core/org.eclipse.cdt.ui/plugin.xml

@@ -23,6 +23,7 @@
    <extension-point id="newCfgDialog" name="%NewCfgDialog.name" schema="schema/newCfgDialog.exsd"/>
    <extension-point id="ConfigManager" name="%ConfigManager" schema="schema/ConfigManager.exsd"/>
    <extension-point id="HelpInfo" name="%HelpInfo" schema="schema/HelpInfo.exsd"/>
+   <extension-point id="quickFixProcessors" name="%quickFixProcessorExtensionPoint" schema="schema/quickFixProcessors.exsd"/>
 
    <extension
          point="org.eclipse.core.runtime.adapters">
@@ -1756,6 +1757,15 @@
          name="org.eclipse.cdt.ui.indexmarker">
       </type>
    </extension>
+   <extension point="org.eclipse.ui.workbench.texteditor.spellingEngine">
+      <engine
+            preferencesClass="org.eclipse.cdt.internal.ui.preferences.SpellingPreferenceBlock"
+            label="%cSpellingEngine.label"
+            class="org.eclipse.cdt.internal.ui.text.spelling.SpellingEngineDispatcher"
+            default="false"
+            id="org.eclipse.cdt.internal.ui.text.spelling.CSpellingEngine">
+      </engine>
+   </extension>
    <extension
          point="org.eclipse.core.runtime.preferences">
       <initializer class="org.eclipse.cdt.ui.CUIPreferenceInitializer"/>
@@ -1921,6 +1931,18 @@
         </command>
    </extension>
 
+   <extension
+         point="org.eclipse.cdt.ui.quickFixProcessors">
+      <quickFixProcessor
+            name="%spellingQuickFixProcessor"
+            class="org.eclipse.cdt.internal.ui.text.spelling.WordQuickFixProcessor"
+            id= "org.eclipse.cdt.ui.text.correction.spelling.QuickFixProcessor">
+            <handledMarkerTypes>
+                <markerType id="org.eclipse.cdt.internal.spelling"/>
+	        </handledMarkerTypes>
+      </quickFixProcessor>
+   </extension>
+
 <!--- Common Navigator extensions -->
   <extension
        point="org.eclipse.ui.navigator.navigatorContent">

core/org.eclipse.cdt.ui/schema/quickFixProcessors.exsd

@@ -0,0 +1,182 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.ui">
+<annotation>
+      <appInfo>
+         <meta.schema plugin="org.eclipse.cdt.ui" id="quickFixProcessors" name="Quick Fix Processor"/>
+      </appInfo>
+      <documentation>
+         This extension point allows to add a Quick Fix processor to offer new Quick Fixes on C/C++ problems.
+&lt;p&gt;
+Extension can specify which problem marker types it can handle. It will only get problems of these types to process.
+&lt;/p&gt;
+&lt;p&gt;
+This extension point supports the &lt;code&gt;enablement&lt;/code&gt; tag. Properties to test on are:
+&lt;dl&gt;
+&lt;li&gt;translationUnit: type ITranslationUnit; the translation unit the quick assist is applied on&lt;/li&gt;
+
+&lt;li&gt;projectNatures: type Collection; all project natures of the current project&lt;/li&gt;
+&lt;/dl&gt;
+&lt;/p&gt;
+      </documentation>
+   </annotation>
+
+   <include schemaLocation="schema://org.eclipse.core.expressions/schema/expressionLanguage.exsd"/>
+
+   <element name="extension">
+      <complexType>
+         <sequence>
+            <element ref="quickFixProcessor" minOccurs="1" maxOccurs="unbounded"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  a fully qualified identifier of the target extension point
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  an optional identifier of the extension instance
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  an optional name of the extension instance
+               </documentation>
+               <appInfo>
+                  <meta.attribute translatable="true"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="quickFixProcessor">
+      <complexType>
+         <sequence>
+            <element ref="enablement" minOccurs="0" maxOccurs="1"/>
+            <element ref="handledMarkerTypes" minOccurs="0" maxOccurs="unbounded"/>
+         </sequence>
+         <attribute name="id" type="string" use="required">
+            <annotation>
+               <documentation>
+                  a unique identifier for the Quick Fix processor
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  a localized name of the Quick Fix processor
+               </documentation>
+               <appInfo>
+                  <meta.attribute translatable="true"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  the name of the class that implements this Quick Fix processor. The
+class must be public and implement
+&lt;samp&gt;org.eclipse.cdt.ui.text.IQuickFixProcessor&lt;/samp&gt;
+with a public 0-argument constructor.
+               </documentation>
+               <appInfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.ui.text.IQuickFixProcessor"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="handledMarkerTypes">
+      <annotation>
+         <documentation>
+            Specifies the marker types of the problems this quick fix processor can handle.
+If no handled marker type are specified, the processor will get problems of types org.eclipse.cdt.core.problem, org.eclipse.cdt.core.buildpath_problem and org.eclipse.cdt.core.task.
+         </documentation>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="markerType" minOccurs="1" maxOccurs="unbounded"/>
+         </sequence>
+      </complexType>
+   </element>
+
+   <element name="markerType">
+      <complexType>
+         <attribute name="id" type="string" use="required">
+            <annotation>
+               <documentation>
+                  the marker type id of the marker that can be handled by this processor
+               </documentation>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="since"/>
+      </appInfo>
+      <documentation>
+         4.1
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="examples"/>
+      </appInfo>
+      <documentation>
+         The following is an example of a Quick Fix processor contribution:
+
+&lt;p&gt;
+&lt;pre&gt;
+ &lt;extension point=&quot;org.eclipse.cdt.ui.quickFixProcessors&quot;&gt;
+  &lt;quickFixProcessor
+   id=&quot;AdvancedQuickFixProcessor&quot;
+   name=&quot;Advanced Quick Fix Processor&quot;
+   class=&quot;com.example.AdvancedQuickFixProcessor&quot;&gt;
+   &lt;handledMarkerTypes&gt;
+      &lt;markerType id=&quot;org.eclipse.myplugin.audits&quot;/&gt;
+   &lt;/handledMarkerTypes&gt;
+   &lt;enablement&gt;
+      &lt;with variable=&quot;projectNatures&quot;&gt;
+         &lt;iterate operator=&quot;or&quot;&gt;
+            &lt;equals value=&quot;org.eclipse.cdt.core.cnature&quot;/&gt;
+         &lt;/iterate&gt;
+      &lt;/with&gt;
+   &lt;/enablement&gt;
+  &lt;/quickFixProcessor&gt;
+ &lt;/extension&gt;
+&lt;/pre&gt;
+&lt;/p&gt;
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="apiInfo"/>
+      </appInfo>
+      <documentation>
+         The contributed class must implement &lt;code&gt;org.eclipse.cdt.ui.text.IQuickFixProcessor&lt;/code&gt;
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="copyright"/>
+      </appInfo>
+      <documentation>
+         Copyright (c) 2001, 2007 IBM Corporation and others.&lt;br&gt;
+All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at &lt;a href=&quot;http://www.eclipse.org/legal/epl-v10.html&quot;&gt;http://www.eclipse.org/legal/epl-v10.html&lt;/a&gt;
+      </documentation>
+   </annotation>
+
+</schema>

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CPluginImages.java

@@ -325,6 +325,17 @@ public class CPluginImages {
 	public static final String IMG_EMPTY = NAME_PREFIX + "tc_empty.gif"; //$NON-NLS-1$
 	public static final ImageDescriptor DESC_EMPTY = createManaged(T_OBJ, IMG_EMPTY);
 
+	public static final String IMG_OBJS_QUICK_ASSIST= NAME_PREFIX + "quickassist_obj.gif"; //$NON-NLS-1$
+	public static final ImageDescriptor DESC_OBJS_QUICK_ASSIST = createManaged(T_OBJ, IMG_OBJS_QUICK_ASSIST);
+	public static final String IMG_CORRECTION_ADD= NAME_PREFIX + "correction_add.gif"; //$NON-NLS-1$
+	public static final ImageDescriptor DESC_CORRECTION_ADD = createManaged(T_OBJ, IMG_CORRECTION_ADD);
+	public static final String IMG_CORRECTION_CHANGE= NAME_PREFIX + "correction_change.gif"; //$NON-NLS-1$
+	public static final ImageDescriptor DESC_CORRECTION_CHANGE = createManaged(T_OBJ, IMG_CORRECTION_CHANGE);
+	public static final String IMG_CORRECTION_RENAME= NAME_PREFIX + "correction_rename.gif"; //$NON-NLS-1$
+	public static final ImageDescriptor DESC_CORRECTION_RENAME = createManaged(T_OBJ, IMG_CORRECTION_RENAME);
+
+	public static final String IMG_OBJS_NLS_NEVER_TRANSLATE= NAME_PREFIX + "never_translate.gif"; //$NON-NLS-1$
+	public static final ImageDescriptor DESC_OBJS_NLS_NEVER_TRANSLATE = createManaged(T_OBJ, IMG_OBJS_NLS_NEVER_TRANSLATE);
 
 	private static ImageDescriptor createManaged(String prefix, String name) {
 		return createManaged(imageRegistry, prefix, name);

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ICHelpContextIds.java

@@ -81,6 +81,7 @@ public interface ICHelpContextIds {
 	public static final String PROJECT_INCLUDE_PATHS_SYMBOLS = PREFIX + "std_prop_include";  //$NON-NLS-1$
 
 	public static final String APPEARANCE_PREFERENCE_PAGE = PREFIX + "appearance_preference_page_context"; //$NON-NLS-1$
+	public static final String SPELLING_CONFIGURATION_BLOCK= PREFIX + "spelling_configuration_block_context"; //$NON-NLS-1$
 
 	// Console view
 	public static final String CLEAR_CONSOLE_ACTION = PREFIX + "clear_console_action_context"; //$NON-NLS-1$

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ICThemeConstants.java

@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * Copyright (c) 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
+
+/**
+ * Defines the constants used in the <code>org.eclipse.ui.themes</code>
+ * extension contributed by this plug-in.
+ */
+public interface ICThemeConstants {
+	String ID_PREFIX= CUIPlugin.PLUGIN_ID + "."; //$NON-NLS-1$
+
+	/**
+	 * A theme constant that holds the background color used in the code assist selection dialog.
+	 */
+	public final String CODEASSIST_PROPOSALS_BACKGROUND= ID_PREFIX + PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND;
+
+	/**
+	 * A theme constant that holds the foreground color used in the code assist selection dialog.
+	 */
+	public final String CODEASSIST_PROPOSALS_FOREGROUND= ID_PREFIX + PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND;
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CDocumentProvider.java

@@ -8,6 +8,7 @@
  * Contributors:
  *     QNX Software Systems - Initial API and implementation
  *     Anton Leherbauer (Wind River Systems)
+ *     Sergey Prigogin (Google)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.editor;
 
@@ -54,12 +55,14 @@ import org.eclipse.ui.texteditor.IMarkerUpdater;
 import org.eclipse.ui.texteditor.MarkerAnnotation;
 import org.eclipse.ui.texteditor.MarkerUtilities;
 import org.eclipse.ui.texteditor.ResourceMarkerAnnotationModel;
+import org.eclipse.ui.texteditor.spelling.SpellingAnnotation;
 
 import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.model.ICModelMarker;
 import org.eclipse.cdt.core.model.IProblemRequestor;
 import org.eclipse.cdt.core.model.ITranslationUnit;
 import org.eclipse.cdt.core.model.IWorkingCopy;
+import org.eclipse.cdt.core.parser.IPersistableProblem;
 import org.eclipse.cdt.core.parser.IProblem;
 import org.eclipse.cdt.ui.CUIPlugin;
 import org.eclipse.cdt.ui.PreferenceConstants;
@@ -68,6 +71,7 @@ import org.eclipse.cdt.ui.text.ICPartitions;
 import org.eclipse.cdt.internal.core.model.IBufferFactory;
 
 import org.eclipse.cdt.internal.ui.text.IProblemRequestorExtension;
+import org.eclipse.cdt.internal.ui.text.spelling.CoreSpellingProblem;
 import org.eclipse.cdt.internal.ui.util.EditorUtility;
 
 /**
@@ -85,17 +89,17 @@ public class CDocumentProvider extends TextFileDocumentProvider {
 	 * Annotation representing an <code>IProblem</code>.
 	 */
 	static protected class ProblemAnnotation extends Annotation implements ICAnnotation {
-
 		private static final String INDEXER_ANNOTATION_TYPE= "org.eclipse.cdt.ui.indexmarker"; //$NON-NLS-1$
 		
 		private ITranslationUnit fTranslationUnit;
 		private List fOverlaids;
 		private IProblem fProblem;
 		
-		public ProblemAnnotation(IProblem problem, ITranslationUnit cu) {
+		public ProblemAnnotation(IProblem problem, ITranslationUnit tu) {
 			fProblem= problem;
-			fTranslationUnit= cu;
-			setType(INDEXER_ANNOTATION_TYPE);
+			fTranslationUnit= tu;
+            setType(problem instanceof CoreSpellingProblem ?
+            		SpellingAnnotation.TYPE : INDEXER_ANNOTATION_TYPE);
 		}
 		
 		/*
@@ -109,7 +113,7 @@ public class CDocumentProvider extends TextFileDocumentProvider {
 		 * @see ICAnnotation#getArguments()
 		 */
 		public String[] getArguments() {
-			return isProblem() ? new String[]{fProblem.getArguments()} : null;
+			return isProblem() ? fProblem.getArguments() : null;
 		}
 	
 		/*
@@ -175,6 +179,15 @@ public class CDocumentProvider extends TextFileDocumentProvider {
 		public ITranslationUnit getTranslationUnit() {
 			return fTranslationUnit;
 		}
+
+		/*
+		 * @see org.eclipse.jdt.internal.ui.javaeditor.IJavaAnnotation#getMarkerType()
+		 */
+		public String getMarkerType() {
+			if (fProblem instanceof IPersistableProblem)
+				return ((IPersistableProblem) fProblem).getMarkerType();
+			return null;
+		}
 	}
 		
 	/**

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CMarkerAnnotation.java

@@ -169,4 +169,12 @@ public class CMarkerAnnotation extends MarkerAnnotation implements IProblemAnnot
 		}
 		return null;
 	}
+
+	public String getMarkerType() {
+		IMarker marker= getMarker();
+		if (marker == null || !marker.exists())
+			return null;
+		
+		return MarkerUtilities.getMarkerType(getMarker());
+	}
 }

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/ICAnnotation.java

@@ -72,7 +72,7 @@ public interface ICAnnotation {
 	 * Adds the given annotation to the list of
 	 * annotations which are overlaid by this annotations.
 	 *  
-	 * @param annotation	the problem annoation
+	 * @param annotation	the problem annotation
 	 */
 	void addOverlaid(ICAnnotation annotation);
 	
@@ -80,7 +80,7 @@ public interface ICAnnotation {
 	 * Removes the given annotation from the list of
 	 * annotations which are overlaid by this annotation.
 	 *  
-	 * @param annotation	the problem annoation
+	 * @param annotation	the problem annotation
 	 */
 	void removeOverlaid(ICAnnotation annotation);
 	
@@ -101,4 +101,13 @@ public interface ICAnnotation {
 	String[] getArguments();
 	
 	int getId();
+
+	/**
+	 * Returns the marker type associated to this problem or <code>null<code> if no marker type
+	 * can be evaluated. See also {@link org.eclipse.cdt.ui.text.IProblemLocation#getMarkerType()}.
+	 * 
+	 * @return the type of the marker which would be associated to the problem or
+	 * <code>null<code> if no marker type can be evaluated. 
+	 */
+	String getMarkerType();
 }

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/preferences/PreferencesMessages.java

@@ -9,6 +9,7 @@
  *     IBM Corporation - initial API and implementation
  *     Anton Leherbauer (Wind River Systems)
  *     Markus Schorn (Wind River Systems)
+ *     Sergey Prigogin (Google)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.preferences;
 
@@ -223,6 +224,36 @@ public final class PreferencesMessages extends NLS {
 	public static String TodoTaskInputDialog_error_entryExists;
 	public static String TodoTaskInputDialog_error_noSpace;
 
+	public static String SpellingPreferencePage_empty_threshold;
+	public static String SpellingPreferencePage_invalid_threshold;
+	public static String SpellingPreferencePage_ignore_digits_label;
+	public static String SpellingPreferencePage_ignore_mixed_label;
+	public static String SpellingPreferencePage_ignore_sentence_label;
+	public static String SpellingPreferencePage_ignore_upper_label;
+	public static String SpellingPreferencePage_ignore_url_label;
+	public static String SpellingPreferencePage_ignore_non_letters_label;
+	public static String SpellingPreferencePage_ignore_single_letters_label;
+	public static String SpellingPreferencePage_ignore_string_literals_label;
+	public static String SpellingPreferencePage_proposals_threshold;
+	public static String SpellingPreferencePage_problems_threshold;
+	public static String SpellingPreferencePage_dictionary_label;
+	public static String SpellingPreferencePage_encoding_label;
+	public static String SpellingPreferencePage_workspace_dictionary_label;
+	public static String SpellingPreferencePage_browse_label;
+	public static String SpellingPreferencePage_dictionary_error;
+	public static String SpellingPreferencePage_dictionary_none;
+	public static String SpellingPreferencePage_locale_error;
+	public static String SpellingPreferencePage_filedialog_title;
+	public static String SpellingPreferencePage_filter_dictionary_label;
+	public static String SpellingPreferencePage_filter_all_label;
+	public static String SpellingPreferencePage_enable_contentassist_label;
+	public static String SpellingPreferencePage_group_user;
+	public static String SpellingPreferencePage_group_dictionary;
+	public static String SpellingPreferencePage_group_dictionaries;
+	public static String SpellingPreferencePage_group_advanced;
+	public static String SpellingPreferencePage_user_dictionary_description;
+	public static String SpellingPreferencePage_variables;
+
 	public static String LanguageMappings_missingLanguageTitle;
 	
 	public static String WorkspaceLanguagesPreferencePage_description;

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/preferences/PreferencesMessages.properties

@@ -9,6 +9,7 @@
 #     IBM Corporation - initial API and implementation
 #     Anton Leherbauer (Wind River Systems)
 #     Markus Schorn (Wind River Systems)
+#     Sergey Prigogin (Google)
 ###############################################################################
 
 CEditorPreferencePage_link=C/C++ Editor Preferences. Note that some preferences may be set on the <a href="org.eclipse.ui.preferencePages.GeneralTextEditor">Text Editors</a> preference page.
@@ -257,7 +258,36 @@ PathEntryVariablesBlock_addVariableButton = &New...
 PathEntryVariablesBlock_editVariableButton = Edi&t...
 PathEntryVariablesBlock_removeVariableButton = &Remove
 
-
+# Spelling
+SpellingPreferencePage_empty_threshold= A positive integer must be specified.
+SpellingPreferencePage_invalid_threshold=''{0}'' is not a valid positive integer.
+SpellingPreferencePage_ignore_digits_label=Ignore &words with digits
+SpellingPreferencePage_ignore_mixed_label=Ignore &mixed case words
+SpellingPreferencePage_ignore_sentence_label=Ignore &sentence capitalization
+SpellingPreferencePage_ignore_upper_label=Ignore u&pper case words
+SpellingPreferencePage_ignore_url_label=Ignore &internet addresses
+SpellingPreferencePage_ignore_single_letters_label=I&gnore single letters
+SpellingPreferencePage_ignore_string_literals_label=Ignore string &literals
+SpellingPreferencePage_ignore_non_letters_label=Ignore &non-letters at word boundaries
+SpellingPreferencePage_proposals_threshold= Ma&ximum number of correction proposals:
+SpellingPreferencePage_problems_threshold= Maximum number of problems repor&ted per file:
+SpellingPreferencePage_dictionary_label=Plat&form dictionary:
+SpellingPreferencePage_workspace_dictionary_label=Use&r defined dictionary:
+SpellingPreferencePage_browse_label=&Browse...
+SpellingPreferencePage_dictionary_error=The dictionary file must be read/write accessible.
+SpellingPreferencePage_dictionary_none=none
+SpellingPreferencePage_encoding_label=En&coding:
+SpellingPreferencePage_locale_error=There is no dictionary available for this language.
+SpellingPreferencePage_filedialog_title=Select User Dictionary
+SpellingPreferencePage_filter_dictionary_label=Dictionary Files
+SpellingPreferencePage_filter_all_label=All Files
+SpellingPreferencePage_enable_contentassist_label=Ma&ke dictionary available to content assist
+SpellingPreferencePage_group_user=Options
+SpellingPreferencePage_group_dictionary=Dictionary
+SpellingPreferencePage_group_dictionaries=Dictionaries
+SpellingPreferencePage_group_advanced=Advanced
+SpellingPreferencePage_variables=&Variables...
+SpellingPreferencePage_user_dictionary_description=The user dictionary is a text file with one word on each line
 
 # Language settings
 LanguageMappings_missingLanguageTitle = Missing Languages

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/preferences/SpellingConfigurationBlock.java

@@ -0,0 +1,641 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.preferences;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+
+import org.eclipse.core.variables.IStringVariableManager;
+import org.eclipse.core.variables.VariablesPlugin;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.ResourcesPlugin;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Combo;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.FileDialog;
+import org.eclipse.swt.widgets.Group;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Text;
+
+import org.eclipse.jface.dialogs.DialogPage;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.preference.PreferenceStore;
+import org.eclipse.jface.window.Window;
+
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
+
+import org.eclipse.ui.ide.dialogs.EncodingFieldEditor;
+
+import org.eclipse.cdt.ui.PreferenceConstants;
+
+import org.eclipse.cdt.internal.ui.ICHelpContextIds;
+import org.eclipse.cdt.internal.ui.dialogs.IStatusChangeListener;
+import org.eclipse.cdt.internal.ui.dialogs.StatusInfo;
+import org.eclipse.cdt.internal.ui.dialogs.StatusUtil;
+import org.eclipse.cdt.internal.ui.text.spelling.SpellCheckEngine;
+import org.eclipse.cdt.internal.ui.util.PixelConverter;
+import org.eclipse.cdt.internal.ui.util.SWTUtil;
+import org.eclipse.cdt.internal.ui.wizards.indexwizards.StringVariableSelectionDialog;
+
+/**
+ * Options configuration block for spell check related settings.
+ */
+public class SpellingConfigurationBlock extends OptionsConfigurationBlock {
+	/**
+	 * Tells whether content assist proposal block should be shown.
+	 * Currently the spelling engine cannot return word proposals but
+	 * only correction proposals and hence this is disabled.
+	 */
+	private static final boolean SUPPORT_CONTENT_ASSIST_PROPOSALS= false;
+	
+	/** Preference keys for the preferences in this block */
+	private static final Key PREF_SPELLING_IGNORE_DIGITS= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_DIGITS);
+	private static final Key PREF_SPELLING_IGNORE_MIXED= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_MIXED);
+	private static final Key PREF_SPELLING_IGNORE_SENTENCE= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_SENTENCE);
+	private static final Key PREF_SPELLING_IGNORE_UPPER= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_UPPER);
+	private static final Key PREF_SPELLING_IGNORE_STRING_LITERALS= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_STRING_LITERALS);
+	private static final Key PREF_SPELLING_IGNORE_SINGLE_LETTERS= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_SINGLE_LETTERS);
+	private static final Key PREF_SPELLING_IGNORE_NON_LETTERS= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_NON_LETTERS);
+	private static final Key PREF_SPELLING_IGNORE_URLS= getCDTUIKey(PreferenceConstants.SPELLING_IGNORE_URLS);
+	private static final Key PREF_SPELLING_LOCALE= getCDTUIKey(PreferenceConstants.SPELLING_LOCALE);
+	private static final Key PREF_SPELLING_PROPOSAL_THRESHOLD= getCDTUIKey(PreferenceConstants.SPELLING_PROPOSAL_THRESHOLD);
+	private static final Key PREF_SPELLING_PROBLEMS_THRESHOLD= getCDTUIKey(PreferenceConstants.SPELLING_PROBLEMS_THRESHOLD);
+	private static final Key PREF_SPELLING_USER_DICTIONARY= getCDTUIKey(PreferenceConstants.SPELLING_USER_DICTIONARY);
+	private static final Key PREF_SPELLING_USER_DICTIONARY_ENCODING= getCDTUIKey(PreferenceConstants.SPELLING_USER_DICTIONARY_ENCODING);
+	private static final Key PREF_SPELLING_ENABLE_CONTENTASSIST= getCDTUIKey(PreferenceConstants.SPELLING_ENABLE_CONTENTASSIST);
+
+	/**
+	 * The value for no platform dictionary.
+	 */
+	private static final String PREF_VALUE_NO_LOCALE= ""; //$NON-NLS-1$
+
+	/**
+	 * Creates a selection dependency between a master and a slave control.
+	 * 
+	 * @param master     The master button that controls the state of the slave
+	 * @param slave      The slave control that is enabled only if the master is
+	 *                   selected
+	 */
+	protected static void createSelectionDependency(final Button master, final Control slave) {
+		master.addSelectionListener(new SelectionListener() {
+			public void widgetDefaultSelected(SelectionEvent event) {
+				// Do nothing
+			}
+
+			public void widgetSelected(SelectionEvent event) {
+				slave.setEnabled(master.getSelection());
+			}
+		});
+		slave.setEnabled(master.getSelection());
+	}
+
+	/**
+	 * Returns the locale codes for the locale list.
+	 * 
+	 * @param locales
+	 *                   The list of locales
+	 * @return Array of locale codes for the list
+	 */
+	protected static String[] getDictionaryCodes(final Set locales) {
+		int index= 0;
+		Locale locale= null;
+
+		final String[] codes= new String[locales.size() + 1];
+		for (final Iterator iterator= locales.iterator(); iterator.hasNext();) {
+			locale= (Locale)iterator.next();
+			codes[index++]= locale.toString();
+		}
+		codes[index++]= PREF_VALUE_NO_LOCALE;
+		return codes;
+	}
+
+	/**
+	 * Returns the display labels for the locale list.
+	 * 
+	 * @param locales    The list of locales
+	 * @return Array of display labels for the list
+	 */
+	protected static String[] getDictionaryLabels(final Set locales) {
+		int index= 0;
+		Locale locale= null;
+
+		final String[] labels= new String[locales.size() + 1];
+		for (final Iterator iterator= locales.iterator(); iterator.hasNext();) {
+
+			locale= (Locale)iterator.next();
+			labels[index++]= locale.getDisplayName();
+		}
+		labels[index++]= PreferencesMessages.SpellingPreferencePage_dictionary_none;
+		return labels;
+	}
+
+	/**
+	 * Validates that the file with the specified absolute path exists and can
+	 * be opened.
+	 * 
+	 * @param path       The path of the file to validate
+	 * @return a status without error if the path is valid
+	 */
+	protected static IStatus validateAbsoluteFilePath(String path) {
+		final StatusInfo status= new StatusInfo();
+		IStringVariableManager variableManager= VariablesPlugin.getDefault().getStringVariableManager();
+		try {
+			path= variableManager.performStringSubstitution(path);
+			if (path.length() > 0) {
+				
+				final File file= new File(path);
+				if (!file.exists() && (!file.isAbsolute() || !file.getParentFile().canWrite()))
+					status.setError(PreferencesMessages.SpellingPreferencePage_dictionary_error);
+				else if (file.exists() && (!file.isFile() || !file.isAbsolute() || !file.canRead() || !file.canWrite()))
+					status.setError(PreferencesMessages.SpellingPreferencePage_dictionary_error);
+			}
+		} catch (CoreException e) {
+			status.setError(e.getLocalizedMessage());
+		}
+		return status;
+	}
+
+	/**
+	 * Validates that the specified locale is available.
+	 * 
+	 * @param localeString the locale to validate
+	 * @return The status of the validation
+	 */
+	private static IStatus validateLocale(final String localeString) {
+		if (PREF_VALUE_NO_LOCALE.equals(localeString))
+			return new StatusInfo(); 
+
+		Locale locale= SpellCheckEngine.convertToLocale(localeString);
+		
+		if (SpellCheckEngine.findClosestLocale(locale) != null)
+			return new StatusInfo();
+		
+		return new StatusInfo(IStatus.ERROR, PreferencesMessages.SpellingPreferencePage_locale_error);
+	}
+	
+	/**
+	 * Validates that the specified number is positive.
+	 * 
+	 * @param number the number to validate
+	 * @return The status of the validation
+	 */
+	protected static IStatus validatePositiveNumber(final String number) {
+		final StatusInfo status= new StatusInfo();
+		if (number.length() == 0) {
+			status.setError(PreferencesMessages.SpellingPreferencePage_empty_threshold); 
+		} else {
+			try {
+				final int value= Integer.parseInt(number);
+				if (value < 0) {
+					status.setError(PreferencesMessages.bind(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number)); 
+				}
+			} catch (NumberFormatException exception) {
+				status.setError(PreferencesMessages.bind(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number)); 
+			}
+		}
+		return status;
+	}
+
+	/** The dictionary path field */
+	private Text fDictionaryPath= null;
+
+	/** The status for the workspace dictionary file */
+	private IStatus fFileStatus= new StatusInfo();
+
+	/** The status for the proposal threshold */
+	private IStatus fThresholdStatus= new StatusInfo();
+	
+	/** The status for the encoding field editor */
+	private IStatus fEncodingFieldEditorStatus= new StatusInfo();
+	
+	/** The encoding field editor. */
+	private EncodingFieldEditor fEncodingEditor;	
+	/** The encoding field editor's parent. */
+	private Composite fEncodingEditorParent;	
+
+	/**
+	 * All controls
+	 */
+	private Control[] fAllControls;
+	
+	/**
+	 * All previously enabled controls
+	 */
+	private Control[] fEnabledControls;
+	
+	/**
+	 * Creates a new spelling configuration block.
+	 * 
+	 * @param context the status change listener
+	 * @param project the Java project
+	 * @param container the preference container
+	 */
+	public SpellingConfigurationBlock(final IStatusChangeListener context, final IProject project, IWorkbenchPreferenceContainer container) {
+		super(context, project, getAllKeys(), container);
+
+		IStatus status= validateAbsoluteFilePath(getValue(PREF_SPELLING_USER_DICTIONARY));
+		if (status.getSeverity() != IStatus.OK)
+			setValue(PREF_SPELLING_USER_DICTIONARY, ""); //$NON-NLS-1$
+
+		status= validateLocale(getValue(PREF_SPELLING_LOCALE));
+		if (status.getSeverity() != IStatus.OK)
+			setValue(PREF_SPELLING_LOCALE, SpellCheckEngine.getDefaultLocale().toString());
+	}
+
+	protected Combo addComboBox(Composite parent, String label, Key key, String[] values, String[] valueLabels, int indent) {
+		ControlData data= new ControlData(key, values);
+		
+		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
+		gd.horizontalIndent= indent;
+				
+		Label labelControl= new Label(parent, SWT.LEFT | SWT.WRAP);
+		labelControl.setText(label);
+		labelControl.setLayoutData(gd);
+		
+		Combo comboBox= new Combo(parent, SWT.READ_ONLY);
+		comboBox.setItems(valueLabels);
+		comboBox.setData(data);
+		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
+		gd.horizontalSpan= 2;
+		comboBox.setLayoutData(gd);
+		comboBox.addSelectionListener(getSelectionListener());
+		
+		fLabels.put(comboBox, labelControl);
+		
+		String currValue= getValue(key);
+		
+		Locale locale= SpellCheckEngine.convertToLocale(currValue);
+		locale= SpellCheckEngine.findClosestLocale(locale);
+		if (locale != null)
+			currValue= locale.toString();
+		
+		comboBox.select(data.getSelection(currValue));
+		
+		fComboBoxes.add(comboBox);
+		return comboBox;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#createContents(org.eclipse.swt.widgets.Composite)
+	 */
+	protected Control createContents(final Composite parent) {
+		Composite composite= new Composite(parent, SWT.NONE);
+		composite.setLayout(new GridLayout());
+
+		List allControls= new ArrayList();
+		final PixelConverter converter= new PixelConverter(parent);
+
+		final String[] trueFalse= new String[] { IPreferenceStore.TRUE, IPreferenceStore.FALSE };
+
+		Group user= new Group(composite, SWT.NONE);
+		user.setText(PreferencesMessages.SpellingPreferencePage_group_user); 
+		user.setLayout(new GridLayout());		
+		user.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+		allControls.add(user);
+
+		String label= PreferencesMessages.SpellingPreferencePage_ignore_digits_label; 
+		Control slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_DIGITS, trueFalse, 0);
+		allControls.add(slave);
+
+		label= PreferencesMessages.SpellingPreferencePage_ignore_mixed_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_MIXED, trueFalse, 0);
+		allControls.add(slave);
+
+		label= PreferencesMessages.SpellingPreferencePage_ignore_sentence_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_SENTENCE, trueFalse, 0);
+		allControls.add(slave);
+
+		label= PreferencesMessages.SpellingPreferencePage_ignore_upper_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_UPPER, trueFalse, 0);
+		allControls.add(slave);
+
+		label= PreferencesMessages.SpellingPreferencePage_ignore_url_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_URLS, trueFalse, 0);
+		allControls.add(slave);
+		
+		label= PreferencesMessages.SpellingPreferencePage_ignore_non_letters_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_NON_LETTERS, trueFalse, 0);
+		allControls.add(slave);
+		
+		label= PreferencesMessages.SpellingPreferencePage_ignore_single_letters_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_SINGLE_LETTERS, trueFalse, 0);
+		allControls.add(slave);
+		
+		label= PreferencesMessages.SpellingPreferencePage_ignore_string_literals_label; 
+		slave= addCheckBox(user, label, PREF_SPELLING_IGNORE_STRING_LITERALS, trueFalse, 0);
+		allControls.add(slave);
+		
+		final Set locales= SpellCheckEngine.getLocalesWithInstalledDictionaries();
+		boolean hasPlaformDictionaries= locales.size() > 0;
+		
+		final Group engine= new Group(composite, SWT.NONE);
+		if (hasPlaformDictionaries)
+			engine.setText(PreferencesMessages.SpellingPreferencePage_group_dictionaries);
+		else
+			engine.setText(PreferencesMessages.SpellingPreferencePage_group_dictionary);
+		engine.setLayout(new GridLayout(4, false));
+		engine.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+		allControls.add(engine);
+
+		if (hasPlaformDictionaries) {
+			label= PreferencesMessages.SpellingPreferencePage_dictionary_label; 
+			Combo combo= addComboBox(engine, label, PREF_SPELLING_LOCALE, getDictionaryCodes(locales), getDictionaryLabels(locales), 0);
+			combo.setEnabled(locales.size() > 0);
+			allControls.add(combo);
+			allControls.add(fLabels.get(combo));
+			
+			new Label(engine, SWT.NONE); // placeholder
+		}
+		
+		label= PreferencesMessages.SpellingPreferencePage_workspace_dictionary_label; 
+		fDictionaryPath= addTextField(engine, label, PREF_SPELLING_USER_DICTIONARY, 0, 0);
+		GridData gd= (GridData) fDictionaryPath.getLayoutData();
+		gd.grabExcessHorizontalSpace= true;
+		gd.widthHint= converter.convertWidthInCharsToPixels(40);
+		allControls.add(fDictionaryPath);
+		allControls.add(fLabels.get(fDictionaryPath));
+
+		Composite buttons=new Composite(engine, SWT.NONE);
+		buttons.setLayout(new GridLayout(2,true));
+		buttons.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
+		
+		Button button= new Button(buttons, SWT.PUSH);
+		button.setText(PreferencesMessages.SpellingPreferencePage_browse_label); 
+		button.addSelectionListener(new SelectionAdapter() {
+
+			public void widgetSelected(final SelectionEvent event) {
+				handleBrowseButtonSelected();
+			}
+		});
+		SWTUtil.setButtonDimensionHint(button);
+		button.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
+		allControls.add(button);
+		
+		button=new Button(buttons, SWT.PUSH);
+		button.setText(PreferencesMessages.SpellingPreferencePage_variables);
+		button.addSelectionListener(new SelectionAdapter() {
+			public void widgetSelected(SelectionEvent e) {
+				handleVariablesButtonSelected();
+			}
+		});
+		SWTUtil.setButtonDimensionHint(button);
+		button.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
+		allControls.add(button);
+		
+		// Description for user dictionary
+		new Label(engine, SWT.NONE); // filler
+		Label description= new Label(engine, SWT.NONE);
+		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
+		gd.horizontalSpan= 3;
+		description.setLayoutData(gd);
+		description.setText(PreferencesMessages.SpellingPreferencePage_user_dictionary_description);
+		allControls.add(description);
+		
+		createEncodingFieldEditor(engine, allControls);
+
+		Group advanced= new Group(composite, SWT.NONE);
+		advanced.setText(PreferencesMessages.SpellingPreferencePage_group_advanced); 
+		advanced.setLayout(new GridLayout(3, false));
+		advanced.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+		allControls.add(advanced);
+
+		label= PreferencesMessages.SpellingPreferencePage_problems_threshold; 
+		int digits= 4;
+		Text  text= addTextField(advanced, label, PREF_SPELLING_PROBLEMS_THRESHOLD, 0, converter.convertWidthInCharsToPixels(digits+1));
+		text.setTextLimit(digits);
+		allControls.add(text);
+		allControls.add(fLabels.get(text));
+
+		label= PreferencesMessages.SpellingPreferencePage_proposals_threshold; 
+		digits= 3;
+		text= addTextField(advanced, label, PREF_SPELLING_PROPOSAL_THRESHOLD, 0, converter.convertWidthInCharsToPixels(digits+1));
+		text.setTextLimit(digits);
+		gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
+		allControls.add(text);
+		allControls.add(fLabels.get(text));
+
+		if (SUPPORT_CONTENT_ASSIST_PROPOSALS) {
+			label= PreferencesMessages.SpellingPreferencePage_enable_contentassist_label; 
+			button= addCheckBox(advanced, label, PREF_SPELLING_ENABLE_CONTENTASSIST, trueFalse, 0);
+			allControls.add(button);
+		}
+
+		fAllControls= (Control[]) allControls.toArray(new Control[allControls.size()]);
+		
+		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ICHelpContextIds.SPELLING_CONFIGURATION_BLOCK);
+		return composite;
+	}
+
+	/**
+	 * Creates the encoding field editor.
+	 * 
+	 * @param composite the parent composite
+	 * @param allControls list with all controls
+	 */
+	private void createEncodingFieldEditor(Composite composite, List allControls) {
+		Label filler= new Label(composite, SWT.NONE);
+		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
+		gd.horizontalSpan= 4;
+		filler.setLayoutData(gd);
+		
+		Label label= new Label(composite, SWT.NONE);
+		label.setText(PreferencesMessages.SpellingPreferencePage_encoding_label);
+		label.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
+		allControls.add(label);
+		
+		fEncodingEditorParent= new Composite(composite, SWT.NONE);
+		GridLayout layout= new GridLayout(2, false);
+		layout.marginWidth= 0;
+		layout.marginHeight= 0;
+		fEncodingEditorParent.setLayout(layout);
+		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
+		gd.horizontalSpan= 3;
+		fEncodingEditorParent.setLayoutData(gd);
+		
+		fEncodingEditor= new EncodingFieldEditor(PREF_SPELLING_USER_DICTIONARY_ENCODING.getName(), "", null, fEncodingEditorParent); //$NON-NLS-1$
+		
+		PreferenceStore store= new PreferenceStore();
+		String defaultEncoding= ResourcesPlugin.getEncoding();
+		store.setDefault(PREF_SPELLING_USER_DICTIONARY_ENCODING.getName(), defaultEncoding);
+		String encoding= getValue(PREF_SPELLING_USER_DICTIONARY_ENCODING);
+		if (encoding != null && encoding.length() > 0)
+			store.setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING.getName(), encoding);
+
+		fEncodingEditor.setPreferenceStore(store);
+
+		// Redirect status messages from the field editor to the status change listener  
+		DialogPage fakePage= new DialogPage() {
+			public void createControl(Composite c) {
+			}
+			public void setErrorMessage(String newMessage) {
+				StatusInfo status= new StatusInfo();
+				if (newMessage != null)
+					status.setError(newMessage);
+				fEncodingFieldEditorStatus= status;
+				fContext.statusChanged(StatusUtil.getMostSevere(new IStatus[] { fThresholdStatus, fFileStatus, fEncodingFieldEditorStatus }));
+			}
+		};
+		fEncodingEditor.setPage(fakePage);
+		
+		fEncodingEditor.load();
+		
+		if (encoding == null || encoding.equals(defaultEncoding) || encoding.length() == 0)
+			fEncodingEditor.loadDefault();
+	}
+
+	private static Key[] getAllKeys() {
+		if (SUPPORT_CONTENT_ASSIST_PROPOSALS)
+			return new Key[] { PREF_SPELLING_USER_DICTIONARY, PREF_SPELLING_USER_DICTIONARY_ENCODING, PREF_SPELLING_IGNORE_DIGITS, PREF_SPELLING_IGNORE_MIXED, PREF_SPELLING_IGNORE_SENTENCE, PREF_SPELLING_IGNORE_UPPER, PREF_SPELLING_IGNORE_URLS, PREF_SPELLING_IGNORE_NON_LETTERS, PREF_SPELLING_IGNORE_SINGLE_LETTERS, PREF_SPELLING_LOCALE, PREF_SPELLING_PROPOSAL_THRESHOLD, PREF_SPELLING_PROBLEMS_THRESHOLD, PREF_SPELLING_ENABLE_CONTENTASSIST, PREF_SPELLING_IGNORE_STRING_LITERALS };
+		else
+			return new Key[] { PREF_SPELLING_USER_DICTIONARY, PREF_SPELLING_USER_DICTIONARY_ENCODING, PREF_SPELLING_IGNORE_DIGITS, PREF_SPELLING_IGNORE_MIXED, PREF_SPELLING_IGNORE_SENTENCE, PREF_SPELLING_IGNORE_UPPER, PREF_SPELLING_IGNORE_URLS, PREF_SPELLING_IGNORE_NON_LETTERS, PREF_SPELLING_IGNORE_SINGLE_LETTERS, PREF_SPELLING_LOCALE, PREF_SPELLING_PROPOSAL_THRESHOLD, PREF_SPELLING_PROBLEMS_THRESHOLD, PREF_SPELLING_IGNORE_STRING_LITERALS };
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#getFullBuildDialogStrings(boolean)
+	 */
+	protected final String[] getFullBuildDialogStrings(final boolean workspace) {
+		return null;
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#performOk()
+	 */
+	public boolean performOk() {
+		fEncodingEditor.store();
+		if (fEncodingEditor.presentsDefaultValue())
+			setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING, ""); //$NON-NLS-1$
+		else
+			setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING, fEncodingEditor.getPreferenceStore().getString(PREF_SPELLING_USER_DICTIONARY_ENCODING.getName()));
+		return super.performOk();
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#performApply()
+	 */
+	public boolean performApply() {
+		fEncodingEditor.store();
+		if (fEncodingEditor.presentsDefaultValue())
+			setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING, ""); //$NON-NLS-1$
+		else
+			setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING, fEncodingEditor.getPreferenceStore().getString(PREF_SPELLING_USER_DICTIONARY_ENCODING.getName()));
+		return super.performApply();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#performDefaults()
+	 */
+	public void performDefaults() {
+		super.performDefaults();
+		
+		setValue(PREF_SPELLING_USER_DICTIONARY_ENCODING, ""); //$NON-NLS-1$
+		
+		fEncodingEditor.getPreferenceStore().setValue(fEncodingEditor.getPreferenceName(), ResourcesPlugin.getEncoding());
+		fEncodingEditor.load();
+		
+		fEncodingEditor.loadDefault();
+	}
+
+	protected void handleVariablesButtonSelected() {
+		StringVariableSelectionDialog dialog= new StringVariableSelectionDialog(fDictionaryPath.getShell());
+		if (dialog.open() == Window.OK)
+			fDictionaryPath.setText(fDictionaryPath.getText() + dialog.getVariableExpression());
+	}
+	
+	/**
+	 * Handles selections of the browse button.
+	 */
+	protected void handleBrowseButtonSelected() {
+		final FileDialog dialog= new FileDialog(fDictionaryPath.getShell(), SWT.OPEN);
+		dialog.setText(PreferencesMessages.SpellingPreferencePage_filedialog_title); 
+		dialog.setFilterPath(fDictionaryPath.getText());
+
+		final String path= dialog.open();
+		if (path != null)
+			fDictionaryPath.setText(path);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#validateSettings(java.lang.String,java.lang.String)
+	 */
+	protected void validateSettings(final Key key, final String oldValue, final String newValue) {
+		if (key == null || PREF_SPELLING_PROPOSAL_THRESHOLD.equals(key))
+			fThresholdStatus= validatePositiveNumber(getValue(PREF_SPELLING_PROPOSAL_THRESHOLD));
+		else
+			fThresholdStatus= new StatusInfo();
+		
+		if (key == null || PREF_SPELLING_PROBLEMS_THRESHOLD.equals(key)) {
+			IStatus status= validatePositiveNumber(getValue(PREF_SPELLING_PROBLEMS_THRESHOLD)); 
+			fThresholdStatus= StatusUtil.getMostSevere(new IStatus[] {fThresholdStatus, status});
+		}
+
+		if (key == null || PREF_SPELLING_USER_DICTIONARY.equals(key))
+			fFileStatus= validateAbsoluteFilePath(getValue(PREF_SPELLING_USER_DICTIONARY));
+
+		fContext.statusChanged(StatusUtil.getMostSevere(new IStatus[] { fThresholdStatus, fFileStatus, fEncodingFieldEditorStatus }));
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.preferences.OptionsConfigurationBlock#updateCheckBox(org.eclipse.swt.widgets.Button)
+	 */
+	protected void updateCheckBox(Button curr) {
+		super.updateCheckBox(curr);
+		Event event= new Event();
+		event.type= SWT.Selection;
+		event.display= curr.getDisplay();
+		event.widget= curr;
+		curr.notifyListeners(SWT.Selection, event);
+	}
+	
+	/**
+	 * Sets the enabled state.
+	 * 
+	 * @param enabled the new state
+	 */
+	protected void setEnabled(boolean enabled) {
+		fEncodingEditor.setEnabled(enabled, fEncodingEditorParent);
+		
+		if (enabled && fEnabledControls != null) {
+			for (int i= fEnabledControls.length - 1; i >= 0; i--)
+				fEnabledControls[i].setEnabled(true);
+			fEnabledControls= null;
+		}
+		if (!enabled && fEnabledControls == null) {
+			List enabledControls= new ArrayList();
+			for (int i= fAllControls.length - 1; i >= 0; i--) {
+				Control control= fAllControls[i];
+				if (control.isEnabled()) {
+					enabledControls.add(control);
+					control.setEnabled(false);
+				}
+			}
+			fEnabledControls= (Control[]) enabledControls.toArray(new Control[enabledControls.size()]);
+		}
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/preferences/SpellingPreferenceBlock.java

@@ -0,0 +1,121 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.preferences;
+
+import org.eclipse.core.runtime.IStatus;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+import org.eclipse.ui.texteditor.spelling.IPreferenceStatusMonitor;
+import org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock;
+
+import org.eclipse.cdt.internal.ui.dialogs.IStatusChangeListener;
+
+/**
+ * Spelling preference block
+ */
+public class SpellingPreferenceBlock implements ISpellingPreferenceBlock {
+	
+	private class NullStatusChangeListener implements IStatusChangeListener {
+		/*
+		 * @see org.eclipse.cdt.internal.ui.wizards.IStatusChangeListener#statusChanged(org.eclipse.core.runtime.IStatus)
+		 */
+		public void statusChanged(IStatus status) {
+		}
+	}
+
+	private class StatusChangeListenerAdapter implements IStatusChangeListener {
+		private IPreferenceStatusMonitor fMonitor;
+		
+		private IStatus fStatus;
+		
+		public StatusChangeListenerAdapter(IPreferenceStatusMonitor monitor) {
+			super();
+			fMonitor= monitor;
+		}
+		
+		/*
+		 * @see org.eclipse.cdt.internal.ui.wizards.IStatusChangeListener#statusChanged(org.eclipse.core.runtime.IStatus)
+		 */
+		public void statusChanged(IStatus status) {
+			fStatus= status;
+			fMonitor.statusChanged(status);
+		}
+		
+		public IStatus getStatus() {
+			return fStatus;
+		}
+	}
+
+	private SpellingConfigurationBlock fBlock= new SpellingConfigurationBlock(new NullStatusChangeListener(), null, null);
+	
+	private SpellingPreferenceBlock.StatusChangeListenerAdapter fStatusMonitor;
+	
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#createControl(org.eclipse.swt.widgets.Composite)
+	 */
+	public Control createControl(Composite parent) {
+		return fBlock.createContents(parent);
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#initialize(org.eclipse.ui.texteditor.spelling.IPreferenceStatusMonitor)
+	 */
+	public void initialize(IPreferenceStatusMonitor statusMonitor) {
+		fStatusMonitor= new StatusChangeListenerAdapter(statusMonitor);
+		fBlock.fContext= fStatusMonitor;
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#canPerformOk()
+	 */
+	public boolean canPerformOk() {
+		return fStatusMonitor == null || fStatusMonitor.getStatus() == null || !fStatusMonitor.getStatus().matches(IStatus.ERROR);
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#performOk()
+	 */
+	public void performOk() {
+		fBlock.performOk();
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#performDefaults()
+	 */
+	public void performDefaults() {
+		fBlock.performDefaults();
+	}
+	
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#performRevert()
+	 */
+	public void performRevert() {
+		fBlock.performRevert();
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#dispose()
+	 */
+	public void dispose() {
+		fBlock.dispose();
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingPreferenceBlock#setEnabled(boolean)
+	 */
+	public void setEnabled(boolean enabled) {
+		fBlock.setEnabled(enabled);
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/CCompositeReconcilingStrategy.java

@@ -0,0 +1,120 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text;
+
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.reconciler.DirtyRegion;
+import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.ui.texteditor.IDocumentProvider;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+import org.eclipse.cdt.internal.ui.text.spelling.CSpellingReconcileStrategy;
+
+/**
+ * Reconciling strategy for C/C++ code. This is a composite strategy containing
+ * the regular C/C++ model reconciler and the comment spelling strategy.
+ */
+public class CCompositeReconcilingStrategy  extends CompositeReconcilingStrategy {
+	private ITextEditor fEditor;
+	private CReconcilingStrategy fCStrategy;
+
+	/**
+	 * Creates a new C/C++ reconciling strategy.
+	 *
+	 * @param viewer the source viewer
+	 * @param editor the editor of the strategy's reconciler
+	 * @param documentPartitioning the document partitioning this strategy uses for configuration
+	 */
+	public CCompositeReconcilingStrategy(ISourceViewer viewer, ITextEditor editor, String documentPartitioning) {
+		fEditor= editor;
+		fCStrategy= new CReconcilingStrategy(editor);
+		setReconcilingStrategies(new IReconcilingStrategy[] {
+			fCStrategy,
+			new CSpellingReconcileStrategy(viewer, editor)
+		});
+	}
+
+	/**
+	 * Returns the problem requestor for the editor's input element.
+	 *
+	 * @return the problem requestor for the editor's input element
+	 */
+	private IProblemRequestorExtension getProblemRequestorExtension() {
+		IDocumentProvider p = fEditor.getDocumentProvider();
+		if (p == null) {
+			return null;
+		}
+		IAnnotationModel m = p.getAnnotationModel(fEditor.getEditorInput());
+		if (m instanceof IProblemRequestorExtension)
+			return (IProblemRequestorExtension) m;
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion, org.eclipse.jface.text.IRegion)
+	 */
+	public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
+		IProblemRequestorExtension e= getProblemRequestorExtension();
+		if (e != null) {
+			try {
+				e.beginReportingSequence();
+				super.reconcile(dirtyRegion, subRegion);
+			} finally {
+				e.endReportingSequence();
+			}
+		} else {
+			super.reconcile(dirtyRegion, subRegion);
+		}
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
+	 */
+	public void reconcile(IRegion partition) {
+		IProblemRequestorExtension e= getProblemRequestorExtension();
+		if (e != null) {
+			try {
+				e.beginReportingSequence();
+				super.reconcile(partition);
+			} finally {
+				e.endReportingSequence();
+			}
+		} else {
+			super.reconcile(partition);
+		}
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#initialReconcile()
+	 */
+	public void initialReconcile() {
+		IProblemRequestorExtension e = getProblemRequestorExtension();
+		if (e != null) {
+			try {
+				e.beginReportingSequence();
+				super.initialReconcile();
+			} finally {
+				e.endReportingSequence();
+			}
+		} else {
+			super.initialReconcile();
+		}
+	}
+
+	/**
+	 * Called before reconciling is started.
+	 */
+	public void aboutToBeReconciled() {
+		fCStrategy.aboutToBeReconciled();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/CReconciler.java

@@ -294,7 +294,7 @@ public class CReconciler extends MonoReconciler {
 	 * @param editor the text editor
 	 * @param strategy  the C reconciling strategy
 	 */
-	public CReconciler(ITextEditor editor, CReconcilingStrategy strategy) {
+	public CReconciler(ITextEditor editor, CCompositeReconcilingStrategy strategy) {
 		super(strategy, false);
 		fTextEditor= editor;
 	}
@@ -373,7 +373,7 @@ public class CReconciler extends MonoReconciler {
 	 * @see org.eclipse.jface.text.reconciler.AbstractReconciler#aboutToBeReconciled()
 	 */
 	protected void aboutToBeReconciled() {
-		CReconcilingStrategy strategy= (CReconcilingStrategy)getReconcilingStrategy(IDocument.DEFAULT_CONTENT_TYPE);
+		CCompositeReconcilingStrategy strategy= (CCompositeReconcilingStrategy)getReconcilingStrategy(IDocument.DEFAULT_CONTENT_TYPE);
 		strategy.aboutToBeReconciled();
 	}
 

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/CSourceViewerConfiguration.java

@@ -9,7 +9,7 @@
  *     IBM Corporation - initial API and implementation
  *     QNX Software System
  *     Anton Leherbauer (Wind River Systems)
- *     Sergey Prigogin, Google
+ *     Sergey Prigogin (Google)
  *     Markus Schorn (Wind River Systems)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.text;
@@ -43,6 +43,7 @@ import org.eclipse.jface.text.information.IInformationPresenter;
 import org.eclipse.jface.text.information.IInformationProvider;
 import org.eclipse.jface.text.information.InformationPresenter;
 import org.eclipse.jface.text.presentation.IPresentationReconciler;
+import org.eclipse.jface.text.quickassist.IQuickAssistAssistant;
 import org.eclipse.jface.text.reconciler.IReconciler;
 import org.eclipse.jface.text.reconciler.MonoReconciler;
 import org.eclipse.jface.text.rules.DefaultDamagerRepairer;
@@ -85,6 +86,7 @@ import org.eclipse.cdt.internal.ui.text.c.hover.CEditorTextHoverDescriptor;
 import org.eclipse.cdt.internal.ui.text.c.hover.CEditorTextHoverProxy;
 import org.eclipse.cdt.internal.ui.text.contentassist.CContentAssistProcessor;
 import org.eclipse.cdt.internal.ui.text.contentassist.ContentAssistPreference;
+import org.eclipse.cdt.internal.ui.text.correction.CCorrectionAssistant;
 import org.eclipse.cdt.internal.ui.typehierarchy.THInformationControl;
 import org.eclipse.cdt.internal.ui.typehierarchy.THInformationProvider;
 
@@ -93,6 +95,7 @@ import org.eclipse.cdt.internal.ui.typehierarchy.THInformationProvider;
  * Configuration for an <code>SourceViewer</code> which shows C/C++ code.
  */
 public class CSourceViewerConfiguration extends TextSourceViewerConfiguration {
+	private CTextTools fTextTools;
 	
 	private ITextEditor fTextEditor;
 	/**
@@ -372,6 +375,16 @@ public class CSourceViewerConfiguration extends TextSourceViewerConfiguration {
 		return settings;
 	}
 	
+	/*
+	 * @see org.eclipse.jface.text.source.SourceViewerConfiguration#getQuickAssistAssistant(org.eclipse.jface.text.source.ISourceViewer)
+	 * @since 5.0
+	 */
+	public IQuickAssistAssistant getQuickAssistAssistant(ISourceViewer sourceViewer) {
+		if (getEditor() != null)
+			return new CCorrectionAssistant(getEditor());
+		return null;
+	}
+
 	/*
 	 * @see org.eclipse.ui.editors.text.TextSourceViewerConfiguration#getReconciler(org.eclipse.jface.text.source.ISourceViewer)
 	 */
@@ -379,7 +392,9 @@ public class CSourceViewerConfiguration extends TextSourceViewerConfiguration {
 		if (fTextEditor != null) {
 			//Delay changed and non-incremental reconciler used due to 
 			//PR 130089
-			MonoReconciler reconciler= new CReconciler(fTextEditor, new CReconcilingStrategy(fTextEditor));
+			CCompositeReconcilingStrategy strategy=
+				new CCompositeReconcilingStrategy(sourceViewer, fTextEditor, getConfiguredDocumentPartitioning(sourceViewer));
+			MonoReconciler reconciler= new CReconciler(fTextEditor, strategy);
 			reconciler.setIsIncrementalReconciler(false);
 			reconciler.setProgressMonitor(new NullProgressMonitor());
 			reconciler.setDelay(500);

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/CompositeReconcilingStrategy.java

@@ -0,0 +1,116 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.reconciler.DirtyRegion;
+import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
+import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
+
+/**
+ * A reconciling strategy consisting of a sequence of internal reconciling strategies.
+ * By default, all requests are passed on to the contained strategies.
+ */
+public class CompositeReconcilingStrategy  implements IReconcilingStrategy, IReconcilingStrategyExtension {
+
+	/** The list of internal reconciling strategies. */
+	private IReconcilingStrategy[] fStrategies;
+
+	/**
+	 * Creates a new, empty composite reconciling strategy.
+	 */
+	public CompositeReconcilingStrategy() {
+	}
+
+	/**
+	 * Sets the reconciling strategies for this composite strategy.
+	 *
+	 * @param strategies the strategies to be set or <code>null</code>
+	 */
+	public void setReconcilingStrategies(IReconcilingStrategy[] strategies) {
+		fStrategies= strategies;
+	}
+
+	/**
+	 * Returns the previously set strategies or <code>null</code>.
+	 *
+	 * @return the contained strategies or <code>null</code>
+	 */
+	public IReconcilingStrategy[] getReconcilingStrategies() {
+		return fStrategies;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
+	 */
+	public void setDocument(IDocument document) {
+		if (fStrategies == null)
+			return;
+
+		for (int i= 0; i < fStrategies.length; i++)
+			fStrategies[i].setDocument(document);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion, org.eclipse.jface.text.IRegion)
+	 */
+	public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
+		if (fStrategies == null)
+			return;
+
+		for (int i= 0; i < fStrategies.length; i++)
+			fStrategies[i].reconcile(dirtyRegion, subRegion);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
+	 */
+	public void reconcile(IRegion partition) {
+		if (fStrategies == null)
+			return;
+
+		for (int i= 0; i < fStrategies.length; i++)
+			fStrategies[i].reconcile(partition);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public void setProgressMonitor(IProgressMonitor monitor) {
+		if (fStrategies == null)
+			return;
+
+		for (int i=0; i < fStrategies.length; i++) {
+			if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
+				IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
+				extension.setProgressMonitor(monitor);
+			}
+		}
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
+	 */
+	public void initialReconcile() {
+		if (fStrategies == null)
+			return;
+
+		for (int i = 0; i < fStrategies.length; i++) {
+			if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
+				IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
+				extension.initialReconcile();
+			}
+		}
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/IHtmlTagConstants.java

@@ -0,0 +1,44 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text;
+
+/**
+ * Html tag constants.
+ */
+public interface IHtmlTagConstants {
+	/** Html tag close prefix */
+	public static final String HTML_CLOSE_PREFIX= "</"; //$NON-NLS-1$
+
+	/** Html entity characters */
+	public static final char[] HTML_ENTITY_CHARACTERS= new char[] { '<', '>', ' ', '&', '^', '~', '\"' };
+
+	/**
+	 * Html entity start.
+	 */
+	public static final char HTML_ENTITY_START= '&';
+	/**
+	 * Html entity end.
+	 */
+	public static final char HTML_ENTITY_END= ';';
+	
+	/** Html entity codes */
+	public static final String[] HTML_ENTITY_CODES= new String[] { "&lt;", "&gt;", "&nbsp;", "&amp;", "&circ;", "&tilde;", "&quot;" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
+
+	/** Html general tags */
+	public static final String[] HTML_GENERAL_TAGS= new String[] { "a", "b", "blockquote", "br", "code", "dd", "dl", "dt", "em", "hr", "h1", "h2", "h3", "h4", "h5", "h6", "i", "li", "nl", "ol", "p", "pre", "q", "strong", "tbody", "td", "th", "tr", "tt", "ul" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$ //$NON-NLS-12$ //$NON-NLS-13$ //$NON-NLS-14$ //$NON-NLS-15$ //$NON-NLS-16$ //$NON-NLS-17$ //$NON-NLS-18$ //$NON-NLS-19$ //$NON-NLS-20$ //$NON-NLS-21$ //$NON-NLS-22$ //$NON-NLS-23$ //$NON-NLS-24$ //$NON-NLS-25$ //$NON-NLS-26$ //$NON-NLS-27$ //$NON-NLS-28$ //$NON-NLS-29$ //$NON-NLS-30$
+
+	/** Html tag postfix */
+	public static final char HTML_TAG_POSTFIX= '>';
+
+	/** Html tag prefix */
+	public static final char HTML_TAG_PREFIX= '<';
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CCorrectionAssistant.java

@@ -0,0 +1,339 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.RGB;
+import org.eclipse.swt.widgets.Shell;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.preference.PreferenceConverter;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.DefaultInformationControl;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IInformationControl;
+import org.eclipse.jface.text.IInformationControlCreator;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.text.quickassist.IQuickAssistAssistant;
+import org.eclipse.jface.text.quickassist.QuickAssistAssistant;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.ISourceViewer;
+
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.texteditor.IDocumentProvider;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.model.ICElement;
+import org.eclipse.cdt.core.model.ILanguage;
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
+
+import org.eclipse.cdt.internal.core.model.ASTCache;
+
+import org.eclipse.cdt.internal.ui.editor.ASTProvider;
+import org.eclipse.cdt.internal.ui.text.CTextTools;
+import org.eclipse.cdt.internal.ui.text.HTMLTextPresenter;
+import org.eclipse.cdt.internal.ui.text.IColorManager;
+
+public class CCorrectionAssistant extends QuickAssistAssistant {
+	private ITextViewer fViewer;
+	private ITextEditor fEditor;
+	private Position fPosition;
+	private Annotation[] fCurrentAnnotations;
+
+	private QuickAssistLightBulbUpdater fLightBulbUpdater;
+
+	/**
+	 * Constructor for CCorrectionAssistant.
+	 */
+	public CCorrectionAssistant(ITextEditor editor) {
+		super();
+		Assert.isNotNull(editor);
+		fEditor= editor;
+
+		CCorrectionProcessor processor= new CCorrectionProcessor(this);
+
+		setQuickAssistProcessor(processor);
+
+		setInformationControlCreator(getInformationControlCreator());
+
+		CTextTools textTools= CUIPlugin.getDefault().getTextTools();
+		IColorManager manager= textTools.getColorManager();
+
+		IPreferenceStore store=  CUIPlugin.getDefault().getPreferenceStore();
+
+		Color c= getColor(store, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, manager);
+		setProposalSelectorForeground(c);
+
+		c= getColor(store, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, manager);
+		setProposalSelectorBackground(c);
+	}
+
+	public IEditorPart getEditor() {
+		return fEditor;
+	}
+
+
+	private IInformationControlCreator getInformationControlCreator() {
+		return new IInformationControlCreator() {
+			public IInformationControl createInformationControl(Shell parent) {
+				return new DefaultInformationControl(parent, new HTMLTextPresenter());
+			}
+		};
+	}
+
+	private static Color getColor(IPreferenceStore store, String key, IColorManager manager) {
+		RGB rgb= PreferenceConverter.getColor(store, key);
+		return manager.getColor(rgb);
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.IContentAssistant#install(org.eclipse.jface.text.ITextViewer)
+	 */
+	public void install(ISourceViewer sourceViewer) {
+		super.install(sourceViewer);
+		fViewer= sourceViewer;
+
+		fLightBulbUpdater= new QuickAssistLightBulbUpdater(fEditor, sourceViewer);
+		fLightBulbUpdater.install();
+	}
+
+
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ContentAssistant#uninstall()
+	 */
+	public void uninstall() {
+		if (fLightBulbUpdater != null) {
+			fLightBulbUpdater.uninstall();
+			fLightBulbUpdater= null;
+		}
+		super.uninstall();
+	}
+
+	/**
+	 * Show completions at caret position. If current
+	 * position does not contain quick fixes look for
+	 * next quick fix on same line by moving from left
+	 * to right and restarting at end of line if the
+	 * beginning of the line is reached.
+	 *
+	 * @see IQuickAssistAssistant#showPossibleQuickAssists()
+	 */
+	public String showPossibleQuickAssists() {
+		fPosition= null;
+		fCurrentAnnotations= null;
+		
+		if (fViewer == null || fViewer.getDocument() == null)
+			// Let superclass deal with this
+			return super.showPossibleQuickAssists();
+
+
+		ArrayList resultingAnnotations= new ArrayList(20);
+		try {
+			Point selectedRange= fViewer.getSelectedRange();
+			int currOffset= selectedRange.x;
+			int currLength= selectedRange.y;
+			boolean goToClosest= (currLength == 0);
+			
+			int newOffset= collectQuickFixableAnnotations(fEditor, currOffset, goToClosest, resultingAnnotations);
+			if (newOffset != currOffset) {
+				storePosition(currOffset, currLength);
+				fViewer.setSelectedRange(newOffset, 0);
+				fViewer.revealRange(newOffset, 0);
+			}
+		} catch (BadLocationException e) {
+			CUIPlugin.getDefault().log(e);
+		}
+		fCurrentAnnotations= (Annotation[]) resultingAnnotations.toArray(new Annotation[resultingAnnotations.size()]);
+
+		return super.showPossibleQuickAssists();
+	}
+	
+	
+	private static IRegion getRegionOfInterest(ITextEditor editor, int invocationLocation) throws BadLocationException {
+		IDocumentProvider documentProvider= editor.getDocumentProvider();
+		if (documentProvider == null) {
+			return null;
+		}
+		IDocument document= documentProvider.getDocument(editor.getEditorInput());
+		if (document == null) {
+			return null;
+		}
+		return document.getLineInformationOfOffset(invocationLocation);
+	}
+	
+	public static int collectQuickFixableAnnotations(ITextEditor editor, int invocationLocation, boolean goToClosest, ArrayList resultingAnnotations) throws BadLocationException {
+		IAnnotationModel model= CUIPlugin.getDefault().getDocumentProvider().getAnnotationModel(editor.getEditorInput());
+		if (model == null) {
+			return invocationLocation;
+		}
+		
+		ensureUpdatedAnnotations(editor);
+		
+		Iterator iter= model.getAnnotationIterator();
+		if (goToClosest) {
+			IRegion lineInfo= getRegionOfInterest(editor, invocationLocation);
+			if (lineInfo == null) {
+				return invocationLocation;
+			}
+			int rangeStart= lineInfo.getOffset();
+			int rangeEnd= rangeStart + lineInfo.getLength();
+			
+			ArrayList allAnnotations= new ArrayList();
+			ArrayList allPositions= new ArrayList();
+			int bestOffset= Integer.MAX_VALUE;
+			while (iter.hasNext()) {
+				Annotation annot= (Annotation) iter.next();
+				if (CCorrectionProcessor.isQuickFixableType(annot)) {
+					Position pos= model.getPosition(annot);
+					if (pos != null && isInside(pos.offset, rangeStart, rangeEnd)) { // inside our range?
+						allAnnotations.add(annot);
+						allPositions.add(pos);
+						bestOffset= processAnnotation(annot, pos, invocationLocation, bestOffset);
+					}
+				}
+			}
+			if (bestOffset == Integer.MAX_VALUE) {
+				return invocationLocation;
+			}
+			for (int i= 0; i < allPositions.size(); i++) {
+				Position pos= (Position) allPositions.get(i);
+				if (isInside(bestOffset, pos.offset, pos.offset + pos.length)) {
+					resultingAnnotations.add(allAnnotations.get(i));
+				}
+			}
+			return bestOffset;
+		} else {
+			while (iter.hasNext()) {
+				Annotation annot= (Annotation) iter.next();
+				if (CCorrectionProcessor.isQuickFixableType(annot)) {
+					Position pos= model.getPosition(annot);
+					if (pos != null && isInside(invocationLocation, pos.offset, pos.offset + pos.length)) {
+						resultingAnnotations.add(annot);
+					}
+				}
+			}
+			return invocationLocation;
+		}
+	}
+
+	private static void ensureUpdatedAnnotations(ITextEditor editor) {
+		Object inputElement= editor.getEditorInput().getAdapter(ICElement.class);
+		if (inputElement instanceof ITranslationUnit) {
+			final ASTProvider astProvider= CUIPlugin.getDefault().getASTProvider();
+			astProvider.runOnAST((ITranslationUnit) inputElement, ASTProvider.WAIT_ACTIVE_ONLY, null, new ASTCache.ASTRunnable() {
+				public IStatus runOnAST(ILanguage lang, IASTTranslationUnit ast) {
+					return Status.OK_STATUS;
+				}
+			});
+		}
+	}
+
+	private static int processAnnotation(Annotation annot, Position pos, int invocationLocation, int bestOffset) {
+		int posBegin= pos.offset;
+		int posEnd= posBegin + pos.length;
+		if (isInside(invocationLocation, posBegin, posEnd)) { // covers invocation location?
+			return invocationLocation;
+		} else if (bestOffset != invocationLocation) {
+			int newClosestPosition= computeBestOffset(posBegin, invocationLocation, bestOffset);
+			if (newClosestPosition != -1) { 
+				if (newClosestPosition != bestOffset) { // new best
+					if (CCorrectionProcessor.hasCorrections(annot)) { // only jump to it if there are proposals
+						return newClosestPosition;
+					}
+				}
+			}
+		}
+		return bestOffset;
+	}
+
+
+	private static boolean isInside(int offset, int start, int end) {
+		return offset == start || offset == end || (offset > start && offset < end); // make sure to handle 0-length ranges
+	}
+
+	/**
+	 * Computes and returns the invocation offset given a new
+	 * position, the initial offset and the best invocation offset
+	 * found so far.
+	 * <p>
+	 * The closest offset to the left of the initial offset is the
+	 * best. If there is no offset on the left, the closest on the
+	 * right is the best.</p>
+	 * @return -1 is returned if the given offset is not closer or the new best offset
+	 */
+	private static int computeBestOffset(int newOffset, int invocationLocation, int bestOffset) {
+		if (newOffset <= invocationLocation) {
+			if (bestOffset > invocationLocation) {
+				return newOffset; // closest was on the right, prefer on the left
+			} else if (bestOffset <= newOffset) {
+				return newOffset; // we are closer or equal
+			}
+			return -1; // further away
+		}
+
+		if (newOffset <= bestOffset)
+			return newOffset; // we are closer or equal
+
+		return -1; // further away
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ContentAssistant#possibleCompletionsClosed()
+	 */
+	protected void possibleCompletionsClosed() {
+		super.possibleCompletionsClosed();
+		restorePosition();
+	}
+
+	private void storePosition(int currOffset, int currLength) {
+		fPosition= new Position(currOffset, currLength);
+	}
+
+	private void restorePosition() {
+		if (fPosition != null && !fPosition.isDeleted() && fViewer.getDocument() != null) {
+			fViewer.setSelectedRange(fPosition.offset, fPosition.length);
+			fViewer.revealRange(fPosition.offset, fPosition.length);
+		}
+		fPosition= null;
+	}
+
+	/**
+	 * Returns true if the last invoked completion was called with an updated offset.
+	 */
+	public boolean isUpdatedOffset() {
+		return fPosition != null;
+	}
+
+	/**
+	 * Returns the annotations at the current offset
+	 */
+	public Annotation[] getAnnotationsAtOffset() {
+		return fCurrentAnnotations;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CCorrectionProcessor.java

@@ -0,0 +1,489 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.ISafeRunnable;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.MultiStatus;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.SafeRunner;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.text.contentassist.ContentAssistEvent;
+import org.eclipse.jface.text.contentassist.ICompletionListener;
+import org.eclipse.jface.text.contentassist.ICompletionProposal;
+import org.eclipse.jface.text.quickassist.IQuickAssistInvocationContext;
+import org.eclipse.jface.text.quickassist.IQuickAssistProcessor;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IMarkerHelpRegistry;
+import org.eclipse.ui.IMarkerResolution;
+import org.eclipse.ui.ide.IDE;
+import org.eclipse.ui.texteditor.SimpleMarkerAnnotation;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IProblemLocation;
+import org.eclipse.cdt.ui.text.IQuickFixProcessor;
+
+import org.eclipse.cdt.internal.ui.editor.ICAnnotation;
+import org.eclipse.cdt.internal.ui.text.contentassist.CCompletionProposal;
+import org.eclipse.cdt.internal.ui.text.contentassist.CCompletionProposalComparator;
+
+public class CCorrectionProcessor implements IQuickAssistProcessor {
+	private static final String QUICKFIX_PROCESSOR_CONTRIBUTION_ID= "quickFixProcessors"; //$NON-NLS-1$
+	private static final String QUICKASSIST_PROCESSOR_CONTRIBUTION_ID= "quickAssistProcessors"; //$NON-NLS-1$
+
+	private static ContributedProcessorDescriptor[] fgContributedAssistProcessors= null;
+	private static ContributedProcessorDescriptor[] fgContributedCorrectionProcessors= null;
+
+	private static ContributedProcessorDescriptor[] getProcessorDescriptors(String contributionId, boolean testMarkerTypes) {
+		IConfigurationElement[] elements= Platform.getExtensionRegistry().getConfigurationElementsFor(CUIPlugin.PLUGIN_ID, contributionId);
+		ArrayList res= new ArrayList(elements.length);
+
+		for (int i= 0; i < elements.length; i++) {
+			ContributedProcessorDescriptor desc= new ContributedProcessorDescriptor(elements[i], testMarkerTypes);
+			IStatus status= desc.checkSyntax();
+			if (status.isOK()) {
+				res.add(desc);
+			} else {
+				CUIPlugin.getDefault().log(status);
+			}
+		}
+		return (ContributedProcessorDescriptor[]) res.toArray(new ContributedProcessorDescriptor[res.size()]);
+	}
+
+	private static ContributedProcessorDescriptor[] getCorrectionProcessors() {
+		if (fgContributedCorrectionProcessors == null) {
+			fgContributedCorrectionProcessors= getProcessorDescriptors(QUICKFIX_PROCESSOR_CONTRIBUTION_ID, true);
+		}
+		return fgContributedCorrectionProcessors;
+	}
+
+	private static ContributedProcessorDescriptor[] getAssistProcessors() {
+		if (fgContributedAssistProcessors == null) {
+			fgContributedAssistProcessors= getProcessorDescriptors(QUICKASSIST_PROCESSOR_CONTRIBUTION_ID, false);
+		}
+		return fgContributedAssistProcessors;
+	}
+
+	public static boolean hasCorrections(ITranslationUnit cu, int problemId, String markerType) {
+		ContributedProcessorDescriptor[] processors= getCorrectionProcessors();
+		SafeHasCorrections collector= new SafeHasCorrections(cu, problemId);
+		for (int i= 0; i < processors.length; i++) {
+			if (processors[i].canHandleMarkerType(markerType)) {
+				collector.process(processors[i]);
+				if (collector.hasCorrections()) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	public static boolean isQuickFixableType(Annotation annotation) {
+		return (annotation instanceof ICAnnotation || annotation instanceof SimpleMarkerAnnotation) && !annotation.isMarkedDeleted();
+	}
+
+	public static boolean hasCorrections(Annotation annotation) {
+		if (annotation instanceof ICAnnotation) {
+			ICAnnotation cAnnotation= (ICAnnotation) annotation;
+			int problemId= cAnnotation.getId();
+			if (problemId != -1) {
+				ITranslationUnit cu= cAnnotation.getTranslationUnit();
+				if (cu != null) {
+					return hasCorrections(cu, problemId, cAnnotation.getMarkerType());
+				}
+			}
+		}
+		if (annotation instanceof SimpleMarkerAnnotation) {
+			return hasCorrections(((SimpleMarkerAnnotation) annotation).getMarker());
+		}
+		return false;
+	}
+
+	private static boolean hasCorrections(IMarker marker) {
+		if (marker == null || !marker.exists())
+			return false;
+
+		IMarkerHelpRegistry registry= IDE.getMarkerHelpRegistry();
+		return registry != null && registry.hasResolutions(marker);
+	}
+
+	public static boolean hasAssists(CorrectionContext context) {
+		ContributedProcessorDescriptor[] processors= getAssistProcessors();
+		SafeHasAssist collector= new SafeHasAssist(context);
+
+		for (int i= 0; i < processors.length; i++) {
+			collector.process(processors[i]);
+			if (collector.hasAssists()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	private CCorrectionAssistant fAssistant;
+	private String fErrorMessage;
+
+	/*
+	 * Constructor for CCorrectionProcessor.
+	 */
+	public CCorrectionProcessor(CCorrectionAssistant assistant) {
+		fAssistant= assistant;
+		fAssistant.addCompletionListener(new ICompletionListener() {
+		
+			public void assistSessionEnded(ContentAssistEvent event) {
+				fAssistant.setStatusLineVisible(false);
+			}
+		
+			public void assistSessionStarted(ContentAssistEvent event) {
+				fAssistant.setStatusLineVisible(true);
+			}
+
+			public void selectionChanged(ICompletionProposal proposal, boolean smartToggle) {
+				if (proposal instanceof IStatusLineProposal) {
+					IStatusLineProposal statusLineProposal= (IStatusLineProposal)proposal;
+					String message= statusLineProposal.getStatusMessage();
+					if (message != null) {
+						fAssistant.setStatusMessage(message);
+					} else {
+						fAssistant.setStatusMessage(""); //$NON-NLS-1$
+					}
+				} else {
+					fAssistant.setStatusMessage(""); //$NON-NLS-1$
+				}
+			}
+		});
+	}
+
+	/*
+	 * @see IContentAssistProcessor#computeCompletionProposals(ITextViewer, int)
+	 */
+	public ICompletionProposal[] computeQuickAssistProposals(IQuickAssistInvocationContext quickAssistContext) {
+		ISourceViewer viewer= quickAssistContext.getSourceViewer();
+		int documentOffset= quickAssistContext.getOffset();
+		
+		IEditorPart part= fAssistant.getEditor();
+
+		ITranslationUnit cu= CUIPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(part.getEditorInput());
+		IAnnotationModel model= CUIPlugin.getDefault().getDocumentProvider().getAnnotationModel(part.getEditorInput());
+		
+		int length= viewer != null ? viewer.getSelectedRange().y : 0;
+		CorrectionContext context= new CorrectionContext(cu, viewer, documentOffset, length);
+
+		Annotation[] annotations= fAssistant.getAnnotationsAtOffset();
+		
+		fErrorMessage= null;
+		
+		ICompletionProposal[] res= null;
+		if (model != null && annotations != null) {
+			ArrayList proposals= new ArrayList(10);
+			IStatus status= collectProposals(context, model, annotations, true, !fAssistant.isUpdatedOffset(), proposals);
+			res= (ICompletionProposal[]) proposals.toArray(new ICompletionProposal[proposals.size()]);
+			if (!status.isOK()) {
+				fErrorMessage= status.getMessage();
+				CUIPlugin.getDefault().log(status);
+			}
+		}
+		
+		if (res == null || res.length == 0) {
+			return new ICompletionProposal[]
+					{ new CCompletionProposal("", 0, 0, null, CorrectionMessages.NoCorrectionProposal_description, 0) }; //$NON-NLS-1$
+		}
+		if (res.length > 1) {
+			Arrays.sort(res, new CCompletionProposalComparator());
+		}
+		return res;
+	}
+
+	public static IStatus collectProposals(CorrectionContext context, IAnnotationModel model, Annotation[] annotations, boolean addQuickFixes, boolean addQuickAssists, Collection proposals) {
+		ArrayList problems= new ArrayList();
+		
+		// collect problem locations and corrections from marker annotations
+		for (int i= 0; i < annotations.length; i++) {
+			Annotation curr= annotations[i];
+			if (curr instanceof ICAnnotation) {
+				ProblemLocation problemLocation= getProblemLocation((ICAnnotation) curr, model);
+				if (problemLocation != null) {
+					problems.add(problemLocation);
+				}
+			} else if (addQuickFixes && curr instanceof SimpleMarkerAnnotation) {
+				// don't collect if annotation is already a C annotation
+				collectMarkerProposals((SimpleMarkerAnnotation) curr, proposals);
+			}
+		}
+		MultiStatus resStatus= null;
+		
+		IProblemLocation[] problemLocations= (IProblemLocation[]) problems.toArray(new IProblemLocation[problems.size()]);
+		if (addQuickFixes) {
+			IStatus status= collectCorrections(context, problemLocations, proposals);
+			if (!status.isOK()) {
+				resStatus= new MultiStatus(CUIPlugin.PLUGIN_ID, IStatus.ERROR, CorrectionMessages.CCorrectionProcessor_error_quickfix_message, null);
+				resStatus.add(status);
+			}
+		}
+		if (addQuickAssists) {
+			IStatus status= collectAssists(context, problemLocations, proposals);
+			if (!status.isOK()) {
+				if (resStatus == null) {
+					resStatus= new MultiStatus(CUIPlugin.PLUGIN_ID, IStatus.ERROR, CorrectionMessages.CCorrectionProcessor_error_quickassist_message, null);
+				}
+				resStatus.add(status);
+			}
+		}
+		if (resStatus != null) {
+			return resStatus;
+		}
+		return Status.OK_STATUS;
+	}
+	
+	private static ProblemLocation getProblemLocation(ICAnnotation cAnnotation, IAnnotationModel model) {
+		int problemId= cAnnotation.getId();
+		if (problemId != -1) {
+			Position pos= model.getPosition((Annotation) cAnnotation);
+			if (pos != null) {
+				return new ProblemLocation(pos.getOffset(), pos.getLength(), cAnnotation); // java problems all handled by the quick assist processors
+			}
+		}
+		return null;
+	}
+
+	private static void collectMarkerProposals(SimpleMarkerAnnotation annotation, Collection proposals) {
+		IMarker marker= annotation.getMarker();
+		IMarkerResolution[] res= IDE.getMarkerHelpRegistry().getResolutions(marker);
+		if (res.length > 0) {
+			for (int i= 0; i < res.length; i++) {
+				proposals.add(new MarkerResolutionProposal(res[i], marker));
+			}
+		}
+	}
+
+	private static abstract class SafeCorrectionProcessorAccess implements ISafeRunnable {
+		private MultiStatus fMulti= null;
+		private ContributedProcessorDescriptor fDescriptor;
+
+		public void process(ContributedProcessorDescriptor[] desc) {
+			for (int i= 0; i < desc.length; i++) {
+				fDescriptor= desc[i];
+				SafeRunner.run(this);
+			}
+		}
+
+		public void process(ContributedProcessorDescriptor desc) {
+			fDescriptor= desc;
+			SafeRunner.run(this);
+		}
+
+		public void run() throws Exception {
+			safeRun(fDescriptor);
+		}
+
+		protected abstract void safeRun(ContributedProcessorDescriptor processor) throws Exception;
+
+		public void handleException(Throwable exception) {
+			if (fMulti == null) {
+				fMulti= new MultiStatus(CUIPlugin.PLUGIN_ID, IStatus.OK, CorrectionMessages.CCorrectionProcessor_error_status, null);
+			}
+			fMulti.merge(new Status(IStatus.ERROR, CUIPlugin.PLUGIN_ID, IStatus.ERROR, CorrectionMessages.CCorrectionProcessor_error_status, exception));
+		}
+
+		public IStatus getStatus() {
+			if (fMulti == null) {
+				return Status.OK_STATUS;
+			}
+			return fMulti;
+		}
+	}
+
+	private static class SafeCorrectionCollector extends SafeCorrectionProcessorAccess {
+		private final CorrectionContext fContext;
+		private final Collection fProposals;
+		private IProblemLocation[] fLocations;
+
+		public SafeCorrectionCollector(CorrectionContext context, Collection proposals) {
+			fContext= context;
+			fProposals= proposals;
+		}
+		
+		public void setProblemLocations(IProblemLocation[] locations) {
+			fLocations= locations;
+		}
+
+		public void safeRun(ContributedProcessorDescriptor desc) throws Exception {
+			IQuickFixProcessor curr= (IQuickFixProcessor) desc.getProcessor(fContext.getTranslationUnit());
+			if (curr != null) {
+				ICCompletionProposal[] res= curr.getCorrections(fContext, fLocations);
+				if (res != null) {
+					for (int k= 0; k < res.length; k++) {
+						fProposals.add(res[k]);
+					}
+				}
+			}
+		}
+	}
+
+	private static class SafeAssistCollector extends SafeCorrectionProcessorAccess {
+		private final CorrectionContext fContext;
+		private final IProblemLocation[] fLocations;
+		private final Collection fProposals;
+
+		public SafeAssistCollector(CorrectionContext context, IProblemLocation[] locations, Collection proposals) {
+			fContext= context;
+			fLocations= locations;
+			fProposals= proposals;
+		}
+
+		public void safeRun(ContributedProcessorDescriptor desc) throws Exception {
+			IQuickFixProcessor curr= (IQuickFixProcessor) desc.getProcessor(fContext.getTranslationUnit());
+			if (curr != null) {
+				ICCompletionProposal[] res= curr.getCorrections(fContext, fLocations);
+				if (res != null) {
+					for (int k= 0; k < res.length; k++) {
+						fProposals.add(res[k]);
+					}
+				}
+			}
+		}
+	}
+
+	private static class SafeHasAssist extends SafeCorrectionProcessorAccess {
+		private final CorrectionContext fContext;
+		private boolean fHasAssists;
+
+		public SafeHasAssist(CorrectionContext context) {
+			fContext= context;
+			fHasAssists= false;
+		}
+
+		public boolean hasAssists() {
+			return fHasAssists;
+		}
+
+		public void safeRun(ContributedProcessorDescriptor desc) throws Exception {
+			IQuickAssistProcessor processor= (IQuickAssistProcessor) desc.getProcessor(fContext.getTranslationUnit());
+			if (processor != null && processor.canAssist(fContext)) {
+				fHasAssists= true;
+			}
+		}
+	}
+
+	private static class SafeHasCorrections extends SafeCorrectionProcessorAccess {
+		private final ITranslationUnit fCu;
+		private final int fProblemId;
+		private boolean fHasCorrections;
+
+		public SafeHasCorrections(ITranslationUnit cu, int problemId) {
+			fCu= cu;
+			fProblemId= problemId;
+			fHasCorrections= false;
+		}
+
+		public boolean hasCorrections() {
+			return fHasCorrections;
+		}
+
+		public void safeRun(ContributedProcessorDescriptor desc) throws Exception {
+			IQuickFixProcessor processor= (IQuickFixProcessor) desc.getProcessor(fCu);
+			if (processor != null && processor.hasCorrections(fCu, fProblemId)) {
+				fHasCorrections= true;
+			}
+		}
+	}
+
+	public static IStatus collectCorrections(CorrectionContext context, IProblemLocation[] locations, Collection proposals) {
+		ContributedProcessorDescriptor[] processors= getCorrectionProcessors();
+		SafeCorrectionCollector collector= new SafeCorrectionCollector(context, proposals);
+		for (int i= 0; i < processors.length; i++) {
+			ContributedProcessorDescriptor curr= processors[i];
+			IProblemLocation[] handled= getHandledProblems(locations, curr);
+			if (handled != null) {
+				collector.setProblemLocations(handled);
+				collector.process(curr);
+			}
+		}
+		return collector.getStatus();
+	}
+
+	private static IProblemLocation[] getHandledProblems(IProblemLocation[] locations, ContributedProcessorDescriptor processor) {
+		// implementation tries to avoid creating a new array
+		boolean allHandled= true;
+		ArrayList res= null;
+		for (int i= 0; i < locations.length; i++) {
+			IProblemLocation curr= locations[i];
+			if (processor.canHandleMarkerType(curr.getMarkerType())) {
+				if (!allHandled) { // first handled problem
+					if (res == null) {
+						res= new ArrayList(locations.length - i);
+					}
+					res.add(curr);
+				}
+			} else if (allHandled) { 
+				if (i > 0) { // first non handled problem 
+					res= new ArrayList(locations.length - i);
+					for (int k= 0; k < i; k++) {
+						res.add(locations[k]);
+					}
+				}
+				allHandled= false;
+			}
+		}
+		if (allHandled) {
+			return locations;
+		}
+		if (res == null) {
+			return null;
+		}
+		return (IProblemLocation[]) res.toArray(new IProblemLocation[res.size()]);
+	}
+
+	public static IStatus collectAssists(CorrectionContext context, IProblemLocation[] locations, Collection proposals) {
+		ContributedProcessorDescriptor[] processors= getAssistProcessors();
+		SafeAssistCollector collector= new SafeAssistCollector(context, locations, proposals);
+		collector.process(processors);
+
+		return collector.getStatus();
+	}
+
+	/*
+	 * @see IContentAssistProcessor#getErrorMessage()
+	 */
+	public String getErrorMessage() {
+		return fErrorMessage;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.quickassist.IQuickAssistProcessor#canFix(org.eclipse.jface.text.source.Annotation)
+	 */
+	public boolean canFix(Annotation annotation) {
+		return hasCorrections(annotation);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.quickassist.IQuickAssistProcessor#canAssist(org.eclipse.jface.text.quickassist.IQuickAssistInvocationContext)
+	 */
+	public boolean canAssist(IQuickAssistInvocationContext invocationContext) {
+		if (invocationContext instanceof CorrectionContext)
+			return hasAssists((CorrectionContext) invocationContext);
+		return false;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/ContributedProcessorDescriptor.java

@@ -0,0 +1,123 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IStatus;
+
+import org.eclipse.core.expressions.EvaluationContext;
+import org.eclipse.core.expressions.EvaluationResult;
+import org.eclipse.core.expressions.Expression;
+import org.eclipse.core.expressions.ExpressionConverter;
+import org.eclipse.core.expressions.ExpressionTagNames;
+
+import org.eclipse.cdt.core.model.ICModelMarker;
+import org.eclipse.cdt.core.model.ICProject;
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.ui.dialogs.StatusInfo;
+
+public final class ContributedProcessorDescriptor {
+	private final IConfigurationElement fConfigurationElement;
+	private Object fProcessorInstance;
+	private Boolean fStatus;
+	private boolean fLastResult;
+	private final Set fHandledMarkerTypes;
+
+	private static final String ID= "id"; //$NON-NLS-1$
+	private static final String CLASS= "class"; //$NON-NLS-1$
+	
+	private static final String HANDLED_MARKER_TYPES= "handledMarkerTypes"; //$NON-NLS-1$
+	private static final String MARKER_TYPE= "markerType"; //$NON-NLS-1$
+	
+	public ContributedProcessorDescriptor(IConfigurationElement element, boolean testMarkerTypes) {
+		fConfigurationElement= element;
+		fProcessorInstance= null;
+		fStatus= null; // undefined
+		if (fConfigurationElement.getChildren(ExpressionTagNames.ENABLEMENT).length == 0) {
+			fStatus= Boolean.TRUE;
+		}
+		fHandledMarkerTypes= testMarkerTypes ? getHandledMarkerTypes(element) : null;
+	}
+
+	private Set getHandledMarkerTypes(IConfigurationElement element) {
+		HashSet map= new HashSet(7);
+		IConfigurationElement[] children= element.getChildren(HANDLED_MARKER_TYPES);
+		for (int i= 0; i < children.length; i++) {
+			IConfigurationElement[] types= children[i].getChildren(MARKER_TYPE);
+			for (int k= 0; k < types.length; k++) {
+				String attribute= types[k].getAttribute(ID);
+				if (attribute != null) {
+					map.add(attribute);
+				}
+			}
+		}
+		if (map.isEmpty()) {
+			map.add(ICModelMarker.TASK_MARKER);
+		}
+		return map;
+	}
+
+	public IStatus checkSyntax() {
+		IConfigurationElement[] children= fConfigurationElement.getChildren(ExpressionTagNames.ENABLEMENT);
+		if (children.length > 1) {
+			String id= fConfigurationElement.getAttribute(ID);
+			return new StatusInfo(IStatus.ERROR, "Only one < enablement > element allowed. Disabling " + id); //$NON-NLS-1$
+		}
+		return new StatusInfo(IStatus.OK, "Syntactically correct quick assist/fix processor"); //$NON-NLS-1$
+	}
+
+	private boolean matches(ITranslationUnit cunit) {
+		if (fStatus != null) {
+			return fStatus.booleanValue();
+		}
+
+		IConfigurationElement[] children= fConfigurationElement.getChildren(ExpressionTagNames.ENABLEMENT);
+		if (children.length == 1) {
+			try {
+				ExpressionConverter parser= ExpressionConverter.getDefault();
+				Expression expression= parser.perform(children[0]);
+				EvaluationContext evalContext= new EvaluationContext(null, cunit);
+				evalContext.addVariable("compilationUnit", cunit); //$NON-NLS-1$
+				ICProject cProject= cunit.getCProject();
+				String[] natures= cProject.getProject().getDescription().getNatureIds();
+				evalContext.addVariable("projectNatures", Arrays.asList(natures)); //$NON-NLS-1$
+				fLastResult= !(expression.evaluate(evalContext) != EvaluationResult.TRUE);
+				return fLastResult;
+			} catch (CoreException e) {
+				CUIPlugin.getDefault().log(e);
+			}
+		}
+		fStatus= Boolean.FALSE;
+		return false;
+	}
+	
+	public Object getProcessor(ITranslationUnit cunit) throws CoreException {
+		if (matches(cunit)) {
+			if (fProcessorInstance == null) {
+				fProcessorInstance= fConfigurationElement.createExecutableExtension(CLASS);
+			}
+			return fProcessorInstance;
+		}
+		return null;
+	}
+	
+	public boolean canHandleMarkerType(String markerType) {
+		return fHandledMarkerTypes == null || fHandledMarkerTypes.contains(markerType);
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CorrectionCommandHandler.java

@@ -0,0 +1,142 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+
+import org.eclipse.jface.bindings.TriggerSequence;
+import org.eclipse.jface.viewers.ISelection;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.contentassist.ICompletionProposal;
+import org.eclipse.jface.text.contentassist.ICompletionProposalExtension;
+import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.IAnnotationModel;
+
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.keys.IBindingService;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.ui.editor.CEditor;
+
+/**
+ * Handler to be used to run a quick fix or assist by keyboard shortcut
+ */
+public class CorrectionCommandHandler extends AbstractHandler {
+	private final CEditor fEditor;
+	private final String fId;
+	private final boolean fIsAssist;
+
+	public CorrectionCommandHandler(CEditor editor, String id, boolean isAssist) {
+		fEditor= editor;
+		fId= id;
+		fIsAssist= isAssist;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
+	 */
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		ISelection selection= fEditor.getSelectionProvider().getSelection();
+		ITranslationUnit cu= CUIPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(fEditor.getEditorInput());
+		IAnnotationModel model= CUIPlugin.getDefault().getDocumentProvider().getAnnotationModel(fEditor.getEditorInput());
+		if (selection instanceof ITextSelection && cu != null && model != null) {
+			ICompletionProposal proposal= findCorrection(fId, fIsAssist, (ITextSelection) selection, cu, model);
+			if (proposal != null) {
+				invokeProposal(proposal, ((ITextSelection) selection).getOffset());
+			}
+		}
+		return null;
+	}
+	
+	private ICompletionProposal findCorrection(String id, boolean isAssist, ITextSelection selection, ITranslationUnit cu, IAnnotationModel model) {
+		CorrectionContext context= new CorrectionContext(cu, selection.getOffset(), selection.getLength());
+		Collection proposals= new ArrayList(10);
+		if (isAssist) {
+			CCorrectionProcessor.collectAssists(context, new ProblemLocation[0], proposals);
+		} else {
+			try {
+				boolean goToClosest= selection.getLength() == 0; 
+				Annotation[] annotations= getAnnotations(selection.getOffset(), goToClosest);
+				CCorrectionProcessor.collectProposals(context, model, annotations, true, false, proposals);
+			} catch (BadLocationException e) {
+				return null;
+			}
+		}
+		for (Iterator iter= proposals.iterator(); iter.hasNext();) {
+			Object curr= iter.next();
+			if (curr instanceof ICommandAccess) {
+				if (id.equals(((ICommandAccess) curr).getCommandId())) {
+					return (ICompletionProposal) curr;
+				}
+			}
+		}
+		return null;
+	}
+
+	private Annotation[] getAnnotations(int offset, boolean goToClosest) throws BadLocationException {
+		ArrayList resultingAnnotations= new ArrayList();
+		CCorrectionAssistant.collectQuickFixableAnnotations(fEditor, offset, goToClosest, resultingAnnotations);
+		return (Annotation[]) resultingAnnotations.toArray(new Annotation[resultingAnnotations.size()]);
+	}
+	
+	private IDocument getDocument() {
+		return CUIPlugin.getDefault().getDocumentProvider().getDocument(fEditor.getEditorInput());
+	}
+	
+	private void invokeProposal(ICompletionProposal proposal, int offset) {
+		if (proposal instanceof ICompletionProposalExtension2) {
+			ITextViewer viewer= fEditor.getViewer();
+			if (viewer != null) {
+				((ICompletionProposalExtension2) proposal).apply(viewer, (char) 0, 0, offset);
+				return;
+			}
+		} else if (proposal instanceof ICompletionProposalExtension) {
+			IDocument document= getDocument();
+			if (document != null) {
+				((ICompletionProposalExtension) proposal).apply(document, (char) 0, offset);
+				return;
+			}
+		}
+		IDocument document= getDocument();
+		if (document != null) {
+			proposal.apply(document);
+		}
+	}
+	
+	public static String getShortCutString(String proposalId) {
+		if (proposalId != null) {
+			IBindingService bindingService= (IBindingService) PlatformUI.getWorkbench().getAdapter(IBindingService.class);
+			if (bindingService != null) {
+				TriggerSequence[] activeBindingsFor= bindingService.getActiveBindingsFor(proposalId);
+				if (activeBindingsFor.length > 0) {
+					return activeBindingsFor[0].format();
+				}
+			}
+		}
+		return null;
+	}
+	
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CorrectionCommandInstaller.java

@@ -0,0 +1,80 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.LegacyHandlerSubmissionExpression;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.commands.ICommandService;
+import org.eclipse.ui.handlers.IHandlerActivation;
+import org.eclipse.ui.handlers.IHandlerService;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.ui.editor.CEditor;
+
+public class CorrectionCommandInstaller {
+	/**
+	 * All correction commands must start with the following prefix.
+	 */
+	public static final String COMMAND_PREFIX= "org.eclipse.jdt.ui.correction."; //$NON-NLS-1$
+	
+	/**
+	 * Commands for quick assist must have the following suffix.
+	 */
+	public static final String ASSIST_SUFFIX= ".assist"; //$NON-NLS-1$
+	
+	private List fCorrectionHandlerActivations;
+	
+	public CorrectionCommandInstaller() {
+		fCorrectionHandlerActivations= null;
+	}
+	
+	public void registerCommands(CEditor editor) {
+		IWorkbench workbench= PlatformUI.getWorkbench();
+		ICommandService commandService= (ICommandService) workbench.getAdapter(ICommandService.class);
+		IHandlerService handlerService= (IHandlerService) workbench.getAdapter(IHandlerService.class);
+		if (commandService == null || handlerService == null) {
+			return;
+		}
+		
+		if (fCorrectionHandlerActivations != null) {
+			CUIPlugin.getDefault().logErrorMessage("correction handler activations not released"); //$NON-NLS-1$
+		}
+		fCorrectionHandlerActivations= new ArrayList();
+		
+		Collection definedCommandIds= commandService.getDefinedCommandIds();
+		for (Iterator iter= definedCommandIds.iterator(); iter.hasNext();) {
+			String id= (String) iter.next();
+			if (id.startsWith(COMMAND_PREFIX)) {
+				boolean isAssist= id.endsWith(ASSIST_SUFFIX);
+				CorrectionCommandHandler handler= new CorrectionCommandHandler(editor, id, isAssist);
+				IHandlerActivation activation= handlerService.activateHandler(id, handler, new LegacyHandlerSubmissionExpression(null, null, editor.getSite()));
+				fCorrectionHandlerActivations.add(activation);
+			}
+		}
+	}
+	
+	public void deregisterCommands() {
+		IHandlerService handlerService= (IHandlerService) PlatformUI.getWorkbench().getAdapter(IHandlerService.class);
+		if (handlerService != null && fCorrectionHandlerActivations != null) {
+			handlerService.deactivateHandlers(fCorrectionHandlerActivations);
+			fCorrectionHandlerActivations= null;
+		}
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CorrectionContext.java

@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.jface.text.source.TextInvocationContext;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+public class CorrectionContext extends TextInvocationContext implements IInvocationContext {
+	private ITranslationUnit fTranslationUnit;
+
+	/*
+	 * Constructor for CorrectionContext.
+	 */
+	public CorrectionContext(ITranslationUnit tu, ISourceViewer sourceViewer, int offset, int length) {
+		super(sourceViewer, offset, length);
+		fTranslationUnit= tu;
+	}
+	
+	/*
+	 * Constructor for CorrectionContext.
+	 */
+	public CorrectionContext(ITranslationUnit tu, int offset, int length) {
+		this(tu, null, offset, length);
+	}
+
+	/**
+	 * Returns the translation unit.
+	 * @return an <code>ITranslationUnit</code>
+	 */
+	public ITranslationUnit getTranslationUnit() {
+		return fTranslationUnit;
+	}
+
+	/**
+	 * Returns the length.
+	 * @return int
+	 */
+	public int getSelectionLength() {
+		return Math.max(getLength(), 0);
+	}
+
+	/**
+	 * Returns the offset.
+	 * @return int
+	 */
+	public int getSelectionOffset() {
+		return getOffset();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CorrectionMessages.java

@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import org.eclipse.osgi.util.NLS;
+
+/**
+ * Helper class to get NLSed messages.
+ */
+public final class CorrectionMessages extends NLS {
+	private static final String BUNDLE_NAME= CorrectionMessages.class.getName();
+
+	static {
+		NLS.initializeMessages(BUNDLE_NAME, CorrectionMessages.class);
+	}
+
+	private CorrectionMessages() {
+		// Do not instantiate
+	}
+
+	public static String CCorrectionProcessor_error_quickassist_message;
+	public static String CCorrectionProcessor_error_quickfix_message;
+	public static String CCorrectionProcessor_error_status;
+	public static String MarkerResolutionProposal_additionaldesc;
+	public static String NoCorrectionProposal_description;
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/CorrectionMessages.properties

@@ -0,0 +1,18 @@
+###############################################################################
+# Copyright (c) 2000, 2007 IBM Corporation and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+# Contributors:
+#     IBM Corporation - initial API and implementation
+#     Sergey Prigogin (Google)
+###############################################################################
+
+CCorrectionProcessor_error_quickassist_message=An error occurred while computing quick assists. Check log for details.
+CCorrectionProcessor_error_quickfix_message=An error occurred while computing quick fixes. Check log for details.
+CCorrectionProcessor_error_status=Exception while processing quick fixes or quick assists
+
+MarkerResolutionProposal_additionaldesc=Problem description: {0}
+NoCorrectionProposal_description=No suggestions available

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/ICommandAccess.java

@@ -0,0 +1,27 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+/**
+ * Correction proposals implement this interface to by invokable by a command. 
+ * (e.g. keyboard shortcut) 
+ */
+public interface ICommandAccess {
+
+	/**
+	 * Returns the id of the command that should invoke this correction proposal
+	 * @return the id of the command. This id must start with {@link CorrectionCommandInstaller#COMMAND_PREFIX}
+	 * to be recognixes as correction command.
+	 */
+	String getCommandId();
+	
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/IHtmlTagConstants.java

@@ -0,0 +1,46 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.correction;
+
+/**
+ * Html tag constants.
+ */
+public interface IHtmlTagConstants {
+
+	/** Html tag close prefix */
+	public static final String HTML_CLOSE_PREFIX= "</"; //$NON-NLS-1$
+
+	/** Html entity characters */
+	public static final char[] HTML_ENTITY_CHARACTERS= new char[] { '<', '>', ' ', '&', '^', '~', '\"' };
+
+	/**
+	 * Html entity start.
+	 */
+	public static final char HTML_ENTITY_START= '&';
+	/**
+	 * Html entity end.
+	 */
+	public static final char HTML_ENTITY_END= ';';
+	
+	/** Html entity codes */
+	public static final String[] HTML_ENTITY_CODES= new String[] { "&lt;", "&gt;", "&nbsp;", "&amp;", "&circ;", "&tilde;", "&quot;" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
+
+	/** Html general tags */
+	public static final String[] HTML_GENERAL_TAGS= new String[] { "a", "b", "blockquote", "br", "code", "dd", "dl", "dt", "em", "hr", "h1", "h2", "h3", "h4", "h5", "h6", "i", "li", "nl", "ol", "p", "pre", "q", "strong", "tbody", "td", "th", "tr", "tt", "ul" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$ //$NON-NLS-12$ //$NON-NLS-13$ //$NON-NLS-14$ //$NON-NLS-15$ //$NON-NLS-16$ //$NON-NLS-17$ //$NON-NLS-18$ //$NON-NLS-19$ //$NON-NLS-20$ //$NON-NLS-21$ //$NON-NLS-22$ //$NON-NLS-23$ //$NON-NLS-24$ //$NON-NLS-25$ //$NON-NLS-26$ //$NON-NLS-27$ //$NON-NLS-28$ //$NON-NLS-29$ //$NON-NLS-30$
+
+	/** Html tag postfix */
+	public static final char HTML_TAG_POSTFIX= '>';
+
+	/** Html tag prefix */
+	public static final char HTML_TAG_PREFIX= '<';
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/IStatusLineProposal.java

@@ -0,0 +1,29 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+/**
+ * A proposal which is able to show a message
+ * on the status line of the content assistant
+ * in which this proposal is shown.
+ * 
+ * @see org.eclipse.jface.text.contentassist.IContentAssistantExtension2
+ */
+public interface IStatusLineProposal {
+	/**
+	 * The message to show when this proposal is
+	 * selected by the user in the content assistant.
+	 * 
+	 * @return The message to show, or null for no message.
+	 */
+	public String getStatusMessage();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/MarkerResolutionProposal.java

@@ -0,0 +1,120 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.runtime.CoreException;
+
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+
+import org.eclipse.ui.IMarkerResolution;
+import org.eclipse.ui.IMarkerResolution2;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+
+public class MarkerResolutionProposal implements ICCompletionProposal {
+	private IMarkerResolution fResolution;
+	private IMarker fMarker;
+
+	/**
+	 * Constructor for MarkerResolutionProposal.
+	 */
+	public MarkerResolutionProposal(IMarkerResolution resolution, IMarker marker) {
+		fResolution= resolution;
+		fMarker= marker;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
+	 */
+	public void apply(IDocument document) {
+		fResolution.run(fMarker);
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
+	 */
+	public String getAdditionalProposalInfo() {
+		if (fResolution instanceof IMarkerResolution2) {
+			return ((IMarkerResolution2) fResolution).getDescription();
+		}
+		if (fResolution instanceof ICCompletionProposal) {
+			return ((ICCompletionProposal) fResolution).getAdditionalProposalInfo();
+		}
+		try {
+			String problemDesc= (String) fMarker.getAttribute(IMarker.MESSAGE);
+			return CorrectionMessages.bind(CorrectionMessages.MarkerResolutionProposal_additionaldesc,
+					problemDesc);
+		} catch (CoreException e) {
+			CUIPlugin.getDefault().log(e);
+		}
+		return null;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
+	 */
+	public IContextInformation getContextInformation() {
+		return null;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return fResolution.getLabel();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
+	 */
+	public Image getImage() {
+		if (fResolution instanceof IMarkerResolution2) {
+			return ((IMarkerResolution2) fResolution).getImage();
+		}
+		if (fResolution instanceof ICCompletionProposal) {
+			return ((ICCompletionProposal) fResolution).getImage();
+		}
+		return CPluginImages.get(CPluginImages.IMG_CORRECTION_CHANGE);
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.internal.ui.text.java.ICCompletionProposal#getRelevance()
+	 */
+	public int getRelevance() {
+		if (fResolution instanceof ICCompletionProposal) {
+			return ((ICCompletionProposal) fResolution).getRelevance();
+		}
+		return 10;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
+	 */
+	public Point getSelection(IDocument document) {
+		if (fResolution instanceof ICCompletionProposal) {
+			return ((ICCompletionProposal) fResolution).getSelection(document);
+		}
+		return null;
+	}
+
+	public String getIdString() {
+		return getDisplayString();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/ProblemLocation.java

@@ -0,0 +1,138 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import org.eclipse.cdt.core.model.ICModelMarker;
+import org.eclipse.cdt.core.parser.IPersistableProblem;
+import org.eclipse.cdt.core.parser.IProblem;
+import org.eclipse.cdt.ui.text.IProblemLocation;
+
+import org.eclipse.cdt.internal.ui.editor.CMarkerAnnotation;
+import org.eclipse.cdt.internal.ui.editor.ICAnnotation;
+
+public class ProblemLocation implements IProblemLocation {
+	private final int fId;
+	private final String[] fArguments;
+	private final int fOffset;
+	private final int fLength;
+	private final boolean fIsError;
+	private final String fMarkerType;
+
+	public ProblemLocation(int offset, int length, ICAnnotation annotation) {
+		fId= annotation.getId();
+		fArguments= annotation.getArguments();
+		fOffset= offset;
+		fLength= length;
+		fIsError= CMarkerAnnotation.ERROR_ANNOTATION_TYPE.equals(annotation.getType());
+		
+		String markerType= annotation.getMarkerType();
+		fMarkerType= markerType != null ? markerType : ICModelMarker.C_MODEL_PROBLEM_MARKER;
+	}
+
+	public ProblemLocation(int offset, int length, int id, String[] arguments, boolean isError, String markerType) {
+		fId= id;
+		fArguments= arguments;
+		fOffset= offset;
+		fLength= length;
+		fIsError= isError;
+		fMarkerType= markerType;
+	}
+	
+	public ProblemLocation(IProblem problem) {
+		fId= problem.getID();
+		fArguments= problem.getArguments();
+		fOffset= problem.getSourceStart();
+		fLength= problem.getSourceEnd() - fOffset + 1;
+		fIsError= problem.isError();
+		fMarkerType= problem instanceof IPersistableProblem ?
+				((IPersistableProblem) problem).getMarkerType() : ICModelMarker.C_MODEL_PROBLEM_MARKER;
+	}
+
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.internal.ui.text.correction.IProblemLocation#getProblemId()
+	 */
+	public int getProblemId() {
+		return fId;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.internal.ui.text.correction.IProblemLocation#getProblemArguments()
+	 */
+	public String[] getProblemArguments() {
+		return fArguments;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.internal.ui.text.correction.IProblemLocation#getLength()
+	 */
+	public int getLength() {
+		return fLength;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.internal.ui.text.correction.IProblemLocation#getOffset()
+	 */
+	public int getOffset() {
+		return fOffset;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.ui.text.java.IProblemLocation#isError()
+	 */
+	public boolean isError() {
+		return fIsError;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.ui.text.java.IProblemLocation#getMarkerType()
+	 */
+	public String getMarkerType() {
+		return fMarkerType;
+	}
+	
+	public String toString() {
+		StringBuffer buf= new StringBuffer();
+		buf.append("Id: ").append(getErrorCode(fId)).append('\n'); //$NON-NLS-1$
+		buf.append('[').append(fOffset).append(", ").append(fLength).append(']').append('\n'); //$NON-NLS-1$
+		String[] arg= fArguments;
+		if (arg != null) {
+			for (int i= 0; i < arg.length; i++) {
+				buf.append(arg[i]);
+				buf.append('\n');				 
+			}
+		}
+		return buf.toString();
+	}
+
+	private String getErrorCode(int code) {
+		StringBuffer buf= new StringBuffer();
+		if ((code & IProblem.SCANNER_RELATED) != 0) {
+			buf.append("ScannerRelated + "); //$NON-NLS-1$
+		}
+		if ((code & IProblem.PREPROCESSOR_RELATED) != 0) {
+			buf.append("PreprocessorRelated + "); //$NON-NLS-1$
+		}
+		if ((code & IProblem.SEMANTICS_RELATED) != 0) {
+			buf.append("SemanticsRelated + "); //$NON-NLS-1$
+		}
+		if ((code & IProblem.INTERNAL_RELATED) != 0) {
+			buf.append("Internal + "); //$NON-NLS-1$
+		}
+		if ((code & IProblem.SYNTAX_RELATED) != 0) {
+			buf.append("Syntax + "); //$NON-NLS-1$
+		}
+		buf.append(code & IProblem.IGNORE_CATEGORIES_MASK);
+
+		return buf.toString();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/correction/QuickAssistLightBulbUpdater.java

@@ -0,0 +1,287 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.correction;
+
+import java.util.ConcurrentModificationException;
+import java.util.Iterator;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.IAnnotationAccessExtension;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.IAnnotationPresentation;
+import org.eclipse.jface.text.source.ImageUtilities;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Canvas;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.texteditor.AnnotationPreference;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.model.ICElement;
+import org.eclipse.cdt.core.model.ILanguage;
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.core.model.IWorkingCopy;
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
+
+import org.eclipse.cdt.internal.core.model.ASTCache.ASTRunnable;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.editor.ASTProvider;
+import org.eclipse.cdt.internal.ui.util.EditorUtility;
+import org.eclipse.cdt.internal.ui.viewsupport.ISelectionListenerWithAST;
+import org.eclipse.cdt.internal.ui.viewsupport.SelectionListenerWithASTManager;
+
+/**
+ *
+ */
+public class QuickAssistLightBulbUpdater {
+
+	public static class AssistAnnotation extends Annotation implements IAnnotationPresentation {
+		//XXX: To be fully correct this should be a non-static fields in QuickAssistLightBulbUpdater
+		private static final int LAYER;
+
+		static {
+			Annotation annotation= new Annotation("org.eclipse.jdt.ui.warning", false, null); //$NON-NLS-1$
+			AnnotationPreference preference= EditorsUI.getAnnotationPreferenceLookup().getAnnotationPreference(annotation);
+			if (preference != null)
+				LAYER= preference.getPresentationLayer() - 1;
+			else
+				LAYER= IAnnotationAccessExtension.DEFAULT_LAYER;
+		}
+
+		private Image fImage;
+
+		public AssistAnnotation() {
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.source.IAnnotationPresentation#getLayer()
+		 */
+		public int getLayer() {
+			return LAYER;
+		}
+
+		private Image getImage() {
+			if (fImage == null) {
+				fImage= CPluginImages.get(CPluginImages.IMG_OBJS_QUICK_ASSIST);
+			}
+			return fImage;
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.text.source.Annotation#paint(org.eclipse.swt.graphics.GC, org.eclipse.swt.widgets.Canvas, org.eclipse.swt.graphics.Rectangle)
+		 */
+		public void paint(GC gc, Canvas canvas, Rectangle r) {
+			ImageUtilities.drawImage(getImage(), gc, canvas, r, SWT.CENTER, SWT.TOP);
+		}
+	}
+
+	private final Annotation fAnnotation;
+	private boolean fIsAnnotationShown;
+	private ITextEditor fEditor;
+	private ITextViewer fViewer;
+
+	private ISelectionListenerWithAST fListener;
+	private IPropertyChangeListener fPropertyChangeListener;
+
+	public QuickAssistLightBulbUpdater(ITextEditor part, ITextViewer viewer) {
+		fEditor= part;
+		fViewer= viewer;
+		fAnnotation= new AssistAnnotation();
+		fIsAnnotationShown= false;
+		fPropertyChangeListener= null;
+	}
+
+	public boolean isSetInPreferences() {
+		return PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB);
+	}
+
+	private void installSelectionListener() {
+		fListener= new ISelectionListenerWithAST() {
+			public void selectionChanged(IEditorPart part,
+					ITextSelection selection, IASTTranslationUnit astRoot) {
+				doSelectionChanged(selection.getOffset(), selection.getLength(), astRoot);
+			}
+		};
+		SelectionListenerWithASTManager.getDefault().addListener(fEditor, fListener);
+	}
+
+	private void uninstallSelectionListener() {
+		if (fListener != null) {
+			SelectionListenerWithASTManager.getDefault().removeListener(fEditor, fListener);
+			fListener= null;
+		}
+		IAnnotationModel model= getAnnotationModel();
+		if (model != null) {
+			removeLightBulb(model);
+		}
+	}
+
+	public void install() {
+		if (isSetInPreferences()) {
+			installSelectionListener();
+		}
+		if (fPropertyChangeListener == null) {
+			fPropertyChangeListener= new IPropertyChangeListener() {
+				public void propertyChange(PropertyChangeEvent event) {
+					doPropertyChanged(event.getProperty());
+				}
+			};
+			PreferenceConstants.getPreferenceStore().addPropertyChangeListener(fPropertyChangeListener);
+		}
+	}
+
+	public void uninstall() {
+		uninstallSelectionListener();
+		if (fPropertyChangeListener != null) {
+			PreferenceConstants.getPreferenceStore().removePropertyChangeListener(fPropertyChangeListener);
+			fPropertyChangeListener= null;
+		}
+	}
+
+	protected void doPropertyChanged(String property) {
+		if (property.equals(PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB)) {
+			if (isSetInPreferences()) {
+				IWorkingCopy workingCopy = CUIPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(fEditor.getEditorInput());
+				if (workingCopy != null) {
+					installSelectionListener();
+					final Point point= fViewer.getSelectedRange();
+					ASTProvider.getASTProvider().runOnAST(workingCopy, ASTProvider.WAIT_YES, null, new ASTRunnable() {
+						public IStatus runOnAST(ILanguage lang, IASTTranslationUnit astRoot) {
+							if (astRoot != null) {
+								doSelectionChanged(point.x, point.y, astRoot);
+							}
+							return Status.OK_STATUS;
+						}
+					});
+				}
+			} else {
+				uninstallSelectionListener();
+			}
+		}
+	}
+
+	private ITranslationUnit getTranslationUnit() {
+		ICElement elem= EditorUtility.getEditorInputCElement(fEditor);
+		if (elem instanceof ITranslationUnit) {
+			return (ITranslationUnit) elem;
+		}
+		return null;
+	}
+
+	private IAnnotationModel getAnnotationModel() {
+		return CUIPlugin.getDefault().getDocumentProvider().getAnnotationModel(fEditor.getEditorInput());
+	}
+
+	private IDocument getDocument() {
+		return CUIPlugin.getDefault().getDocumentProvider().getDocument(fEditor.getEditorInput());
+	}
+
+	private void doSelectionChanged(int offset, int length, IASTTranslationUnit astRoot) {
+		final IAnnotationModel model= getAnnotationModel();
+		final ITranslationUnit cu= getTranslationUnit();
+		if (model == null || cu == null) {
+			return;
+		}
+
+		final CorrectionContext context= new CorrectionContext(cu, offset, length);
+
+		boolean hasQuickFix= hasQuickFixLightBulb(model, context.getSelectionOffset());
+		if (hasQuickFix) {
+			removeLightBulb(model);
+			return; // there is already a quick fix light bulb at the new location
+		}
+
+		calculateLightBulb(model, context);
+	}
+
+	/*
+	 * Needs to be called synchronized
+	 */
+	private void calculateLightBulb(IAnnotationModel model, CorrectionContext context) {
+		boolean needsAnnotation= CCorrectionProcessor.hasAssists(context);
+		if (fIsAnnotationShown) {
+			model.removeAnnotation(fAnnotation);
+		}
+		if (needsAnnotation) {
+			model.addAnnotation(fAnnotation, new Position(context.getSelectionOffset(), context.getSelectionLength()));
+		}
+		fIsAnnotationShown= needsAnnotation;
+	}
+
+	private void removeLightBulb(IAnnotationModel model) {
+		synchronized (this) {
+			if (fIsAnnotationShown) {
+				model.removeAnnotation(fAnnotation);
+				fIsAnnotationShown= false;
+			}
+		}
+	}
+
+	/*
+	 * Tests if there is already a quick fix light bulb on the current line
+	 */
+	private boolean hasQuickFixLightBulb(IAnnotationModel model, int offset) {
+		try {
+			IDocument document= getDocument();
+			if (document == null) {
+				return false;
+			}
+
+			// we access a document and annotation model from within a job
+			// since these are only read accesses, we won't hurt anyone else if
+			// this goes boink
+
+			// may throw an IndexOutOfBoundsException upon concurrent document modification
+			int currLine= document.getLineOfOffset(offset);
+
+			// this iterator is not protected, it may throw ConcurrentModificationExceptions
+			Iterator iter= model.getAnnotationIterator();
+			while (iter.hasNext()) {
+				Annotation annot= (Annotation) iter.next();
+				if (CCorrectionProcessor.isQuickFixableType(annot)) {
+					// may throw an IndexOutOfBoundsException upon concurrent annotation model changes
+					Position pos= model.getPosition(annot);
+					if (pos != null) {
+						// may throw an IndexOutOfBoundsException upon concurrent document modification
+						int startLine= document.getLineOfOffset(pos.getOffset());
+						if (startLine == currLine && CCorrectionProcessor.hasCorrections(annot)) {
+							return true;
+						}
+					}
+				}
+			}
+		} catch (BadLocationException e) {
+			// ignore
+		} catch (IndexOutOfBoundsException e) {
+			// concurrent modification - too bad, ignore
+		} catch (ConcurrentModificationException e) {
+			// concurrent modification - too bad, ignore
+		}
+		return false;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/AddWordProposal.java

@@ -0,0 +1,176 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.dialogs.MessageDialogWithToggle;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.jface.text.quickassist.IQuickAssistInvocationContext;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.dialogs.PreferencesUtil;
+import org.eclipse.ui.texteditor.ITextEditor;
+import org.eclipse.ui.texteditor.spelling.SpellingProblem;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+
+/**
+ * Proposal to add the unknown word to the dictionaries.
+ */
+public class AddWordProposal implements ICCompletionProposal {
+	private static final String PREF_KEY_DO_NOT_ASK= "do_not_ask_to_install_user_dictionary"; //$NON-NLS-1$
+	
+	/** The invocation context */
+	private final IInvocationContext fContext;
+
+	/** The word to add */
+	private final String fWord;
+
+	/**
+	 * Creates a new add word proposal
+	 *
+	 * @param word
+	 *                   The word to add
+	 * @param context
+	 *                   The invocation context
+	 */
+	public AddWordProposal(final String word, final IInvocationContext context) {
+		fContext= context;
+		fWord= word;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
+	 */
+	public final void apply(final IDocument document) {
+		final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
+		final ISpellChecker checker= engine.getSpellChecker();
+
+		if (checker == null)
+			return;
+		
+		IQuickAssistInvocationContext quickAssistContext= null;
+		if (fContext instanceof IQuickAssistInvocationContext)
+			quickAssistContext= (IQuickAssistInvocationContext)fContext;
+		
+		if (!checker.acceptsWords()) {
+			final Shell shell;
+			if (quickAssistContext != null && quickAssistContext.getSourceViewer() != null)
+				shell= quickAssistContext.getSourceViewer().getTextWidget().getShell();
+			else
+				shell= CUIPlugin.getActiveWorkbenchShell();
+			
+			if (!canAskToConfigure() || !askUserToConfigureUserDictionary(shell))
+				return;
+			
+			String[] preferencePageIds= new String[] { "org.eclipse.ui.editors.preferencePages.Spelling" }; //$NON-NLS-1$
+			PreferencesUtil.createPreferenceDialogOn(shell, preferencePageIds[0], preferencePageIds, null).open();
+		}
+		
+		if (checker.acceptsWords()) {
+			checker.addWord(fWord);
+			if (quickAssistContext != null && quickAssistContext.getSourceViewer() != null) {
+				SpellingProblem.removeAll(quickAssistContext.getSourceViewer(), fWord);
+			}
+		}
+	}
+
+	/**
+	 * Asks the user whether he wants to configure
+	 * a user dictionary.
+	 * 
+	 * @param shell
+	 * @return <code>true</code> if the user wants to configure the user dictionary
+	 */
+	private boolean askUserToConfigureUserDictionary(Shell shell) {
+		MessageDialogWithToggle toggleDialog= MessageDialogWithToggle.openYesNoQuestion(
+				shell,
+				Messages.Spelling_add_askToConfigure_title,
+				Messages.Spelling_add_askToConfigure_question,
+				Messages.Spelling_add_askToConfigure_ignoreMessage,
+				false,
+				null,
+				null);
+		
+		PreferenceConstants.getPreferenceStore().setValue(PREF_KEY_DO_NOT_ASK, toggleDialog.getToggleState());
+		
+		return toggleDialog.getReturnCode() == IDialogConstants.YES_ID;
+	}
+
+	/**
+	 * Tells whether this proposal can ask to
+	 * configure a user dictionary.
+	 * 
+	 * @return <code>true</code> if it can ask the user
+	 */
+	static boolean canAskToConfigure() {
+		return !PreferenceConstants.getPreferenceStore().getBoolean(PREF_KEY_DO_NOT_ASK);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
+	 */
+	public String getAdditionalProposalInfo() {
+		return Messages.bind(Messages.Spelling_add_info, WordCorrectionProposal.getHtmlRepresentation(fWord));
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
+	 */
+	public final IContextInformation getContextInformation() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return Messages.bind(Messages.Spelling_add_label, fWord);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
+	 */
+	public Image getImage() {
+		return CPluginImages.get(CPluginImages.IMG_CORRECTION_ADD);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposal#getRelevance()
+	 */
+	public int getRelevance() {
+		return Integer.MIN_VALUE;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
+	 */
+	public final Point getSelection(final IDocument document) {
+		return new Point(fContext.getSelectionOffset(), fContext.getSelectionLength());
+	}
+
+	public String getIdString() {
+		return fWord;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/CSpellingEngine.java

@@ -0,0 +1,136 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.ITypedRegion;
+import org.eclipse.jface.text.TextUtilities;
+import org.eclipse.jface.text.TypedRegion;
+import org.eclipse.jface.text.rules.IToken;
+import org.eclipse.jface.text.rules.RuleBasedScanner;
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.text.ICPartitions;
+
+import org.eclipse.cdt.internal.ui.text.CTextTools;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEventListener;
+
+/**
+ * C/C++ spelling engine
+ */
+public class CSpellingEngine extends SpellingEngine {
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.SpellingEngine#check(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.IRegion[], org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker, org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	protected void check(IDocument document, IRegion[] regions, ISpellChecker checker, ISpellingProblemCollector collector, IProgressMonitor monitor) {
+		ISpellEventListener listener= new SpellEventListener(collector, document);
+		boolean isIgnoringStringLiterals= SpellingPreferences.isIgnoreStringLiterals();
+		try {
+			checker.addListener(listener);
+			try {
+				for (int i= 0; i < regions.length; i++) {
+					IRegion region= regions[i];
+					ITypedRegion[] partitions= TextUtilities.computePartitioning(document,
+							ICPartitions.C_PARTITIONING, region.getOffset(), region.getLength(), false);
+					for (int index= 0; index < partitions.length; index++) {
+						if (monitor != null && monitor.isCanceled())
+							return;
+
+						ITypedRegion partition= partitions[index];
+						final String type= partition.getType();
+						
+						if (isIgnoringStringLiterals && type.equals(ICPartitions.C_STRING))
+							continue;
+
+						if (type.equals(ICPartitions.C_PREPROCESSOR)) {
+							CTextTools textTools = CUIPlugin.getDefault().getTextTools();
+							RuleBasedScanner scanner = textTools.getCppPreprocessorScanner();
+							scanner.setRange(document, partition.getOffset(), partition.getLength());
+							int firstTokenOffset = -1;
+							int firstTokenLength = -1;
+							while (true) {
+								IToken token = scanner.nextToken();
+								if (token.isEOF()) {
+									break;
+								}
+								if (token.isOther()) {
+									int offset = scanner.getTokenOffset();
+									int length = scanner.getTokenLength();
+									if (firstTokenOffset < 0) {
+										firstTokenOffset = offset;
+										firstTokenLength = length;
+									}
+									String subregionType = null;
+									char c = document.getChar(offset);
+									if (c == '"') {
+										if (!isIgnoringStringLiterals &&
+												!isIncludeDirective(document, firstTokenOffset, firstTokenLength)) {
+											subregionType = ICPartitions.C_STRING;
+										}
+									} else if (c == '/' && length >= 2) {
+										c = document.getChar(offset + 1);
+										if (c == '/') {
+											subregionType = ICPartitions.C_SINGLE_LINE_COMMENT;
+										} else if (c == '*') {
+											subregionType = ICPartitions.C_MULTI_LINE_COMMENT;
+										}
+									}
+									if (subregionType != null) {
+										TypedRegion subregion = new TypedRegion(offset, length, subregionType);
+										checker.execute(new SpellCheckIterator(document, subregion,
+												checker.getLocale()));
+									}
+								}
+							}
+						} else if (!type.equals(IDocument.DEFAULT_CONTENT_TYPE) &&
+								!type.equals(ICPartitions.C_CHARACTER)) {
+							checker.execute(new SpellCheckIterator(document, partition, checker.getLocale()));
+						}
+					}
+				}
+			} catch (BadLocationException x) {
+				CUIPlugin.getDefault().log(x);
+			}
+		} finally {
+			checker.removeListener(listener);
+		}
+	}
+
+	/**
+	 * Returns <code>true</code> if the token at the given offset and length is an include directive. 
+	 * @param document
+	 * @param offset
+	 * @param length
+	 * @return
+	 * @throws BadLocationException
+	 */
+	private boolean isIncludeDirective(IDocument document, int offset, int length) throws BadLocationException {
+		while (length > 0) {
+			char c = document.getChar(offset);
+			if (c == '#' || Character.isWhitespace(c)) {
+				offset++;
+				length--;
+			} else if (c == 'i') {
+				return document.get(offset, length).startsWith("include"); //$NON-NLS-1$
+			} else {
+				break;
+			}
+		}
+		return false;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/CSpellingProblem.java

@@ -0,0 +1,202 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.contentassist.ICompletionProposal;
+import org.eclipse.ui.texteditor.spelling.SpellingProblem;
+
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+
+import org.eclipse.cdt.internal.ui.text.correction.CorrectionContext;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.RankedWordProposal;
+
+/**
+ * A {@link SpellingProblem} that adapts a {@link ISpellEvent}.
+ * <p>
+ * TODO: remove {@link ISpellEvent} notification mechanism
+ * </p>
+ */
+public class CSpellingProblem extends SpellingProblem {
+	/** Spell event */
+	private ISpellEvent fSpellEvent;
+
+	/**
+	 * The associated document.
+	 */
+	private IDocument fDocument;
+
+	/**
+	 * Initialize with the given spell event.
+	 * 
+	 * @param spellEvent the spell event
+	 * @param document the document
+	 */
+	public CSpellingProblem(ISpellEvent spellEvent, IDocument document) {
+		Assert.isLegal(document != null);
+		Assert.isLegal(spellEvent != null);
+		fSpellEvent= spellEvent;
+		fDocument= document;
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingProblem#getOffset()
+	 */
+	public int getOffset() {
+		return fSpellEvent.getBegin();
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingProblem#getLength()
+	 */
+	public int getLength() {
+		return fSpellEvent.getEnd() - fSpellEvent.getBegin() + 1;
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingProblem#getMessage()
+	 */
+	public String getMessage() {
+		if (isSentenceStart() && isDictionaryMatch())
+			return Messages.bind(Messages.Spelling_error_case_label, fSpellEvent.getWord());
+
+		return Messages.bind(Messages.Spelling_error_label, fSpellEvent.getWord());
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingProblem#getProposals()
+	 */
+	public ICompletionProposal[] getProposals() {
+		String[] arguments= getArguments();
+		if (arguments == null)
+			return new ICompletionProposal[0];
+		
+		final int threshold= SpellingPreferences.spellingProposalThreshold();
+		int size= 0;
+		List proposals= null;
+
+		RankedWordProposal proposal= null;
+		ICCompletionProposal[] result= null;
+		int index= 0;
+
+		boolean fixed= false;
+		boolean match= false;
+		boolean sentence= false;
+
+		final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
+		final ISpellChecker checker= engine.getSpellChecker();
+
+		if (checker != null) {
+			CorrectionContext context= new CorrectionContext(null, getOffset(), getLength());
+
+			if ((sentence && match) && !fixed) {
+				result= new ICCompletionProposal[] { new ChangeCaseProposal(
+						arguments, getOffset(), getLength(), context,
+						engine.getLocale()) };
+		    } else {
+				proposals= new ArrayList(checker.getProposals(arguments[0],
+						sentence));
+				size= proposals.size();
+
+				if (threshold > 0 && size > threshold) {
+					Collections.sort(proposals);
+					proposals= proposals.subList(size - threshold - 1, size - 1);
+					size= proposals.size();
+				}
+
+				boolean extendable= !fixed ? (checker.acceptsWords() || AddWordProposal.canAskToConfigure()) : false;
+				result= new ICCompletionProposal[size + (extendable ? 3 : 2)];
+
+				for (index= 0; index < size; index++) {
+					proposal= (RankedWordProposal) proposals.get(index);
+					result[index]= new WordCorrectionProposal(proposal
+							.getText(), arguments, getOffset(), getLength(),
+							context, proposal.getRank());
+				}
+
+				if (extendable)
+					result[index++]= new AddWordProposal(arguments[0], context);
+
+				result[index++]= new WordIgnoreProposal(arguments[0], context);
+				result[index++]= new DisableSpellCheckingProposal(context);
+			}
+		}
+
+		return result;
+	}
+	
+	public String[] getArguments() {
+		String prefix= ""; //$NON-NLS-1$
+		String postfix= ""; //$NON-NLS-1$
+		String word;
+		try {
+			word= fDocument.get(getOffset(), getLength());
+		} catch (BadLocationException e) {
+			return null;
+		}
+
+		try {
+			IRegion line= fDocument.getLineInformationOfOffset(getOffset());
+			int end= getOffset() + getLength();
+			prefix= fDocument.get(line.getOffset(), getOffset()
+					- line.getOffset());
+			postfix= fDocument.get(end + 1, line.getOffset() + line.getLength()
+					- end);
+		} catch (BadLocationException exception) {
+			// Do nothing
+		}
+
+		return new String[] {
+				word,
+				prefix,
+				postfix,
+				isSentenceStart() ? Boolean.toString(true) : Boolean
+						.toString(false),
+				isDictionaryMatch() ? Boolean.toString(true) : Boolean
+						.toString(false) };
+	}
+
+	/**
+	 * Returns <code>true</code> iff the corresponding word was found in the dictionary.
+	 * <p>
+	 * NOTE: to be removed, see {@link #getProposals()}
+	 * </p>
+	 *
+	 * @return <code>true</code> iff the corresponding word was found in the dictionary
+	 */
+	public boolean isDictionaryMatch() {
+		return fSpellEvent.isMatch();
+	}
+
+	/**
+	 * Returns <code>true</code> iff the corresponding word starts a sentence.
+	 * <p>
+	 * NOTE: to be removed, see {@link #getProposals()}
+	 * </p>
+	 *
+	 * @return <code>true</code> iff the corresponding word starts a sentence
+	 */
+	public boolean isSentenceStart() {
+		return fSpellEvent.isStart();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/CSpellingReconcileStrategy.java

@@ -0,0 +1,163 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.content.IContentType;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.texteditor.IDocumentProvider;
+import org.eclipse.ui.texteditor.ITextEditor;
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+import org.eclipse.ui.texteditor.spelling.SpellingProblem;
+import org.eclipse.ui.texteditor.spelling.SpellingReconcileStrategy;
+import org.eclipse.ui.texteditor.spelling.SpellingService;
+
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.model.IProblemRequestor;
+import org.eclipse.cdt.core.parser.IProblem;
+
+/**
+ * Reconcile strategy for spell checking comments.
+ */
+public class CSpellingReconcileStrategy extends SpellingReconcileStrategy {
+	/**
+	 * Spelling problem collector that forwards {@link SpellingProblem}s as
+	 * {@link IProblem}s to the {@link IProblemRequestor}.
+	 */
+	private class SpellingProblemCollector implements ISpellingProblemCollector {
+		/*
+		 * @see org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector#accept(org.eclipse.ui.texteditor.spelling.SpellingProblem)
+		 */
+		public void accept(SpellingProblem problem) {
+			IProblemRequestor requestor= fRequestor;
+			if (requestor != null) {
+				try {
+					int line= getDocument().getLineOfOffset(problem.getOffset()) + 1;
+					String word= getDocument().get(problem.getOffset(), problem.getLength());
+					boolean dictionaryMatch= false;
+					boolean sentenceStart= false;
+					if (problem instanceof CSpellingProblem) {
+						dictionaryMatch= ((CSpellingProblem)problem).isDictionaryMatch();
+						sentenceStart= ((CSpellingProblem) problem).isSentenceStart();
+					}
+					// see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=81514
+					IEditorInput editorInput= fEditor.getEditorInput();
+					if (editorInput != null) {
+						CoreSpellingProblem iProblem= new CoreSpellingProblem(problem.getOffset(), problem.getOffset() + problem.getLength() - 1, line, problem.getMessage(), word, dictionaryMatch, sentenceStart, getDocument(), editorInput.getName());
+						requestor.acceptProblem(iProblem);
+					}
+				} catch (BadLocationException x) {
+					// drop this SpellingProblem
+				}
+			}
+		}
+
+		/*
+		 * @see org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector#beginCollecting()
+		 */
+		public void beginCollecting() {
+			if (fRequestor != null)
+				fRequestor.beginReporting();
+		}
+
+		/*
+		 * @see org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector#endCollecting()
+		 */
+		public void endCollecting() {
+			if (fRequestor != null)
+				fRequestor.endReporting();
+		}
+	}
+
+	
+	/** The id of the problem */
+	public static final int SPELLING_PROBLEM_ID= 0x80000000;
+
+	/** Properties file content type */
+	private static final IContentType CXX_CONTENT_TYPE= Platform.getContentTypeManager().getContentType(CCorePlugin.CONTENT_TYPE_CXXSOURCE);
+
+	/** The text editor to operate on. */
+	private ITextEditor fEditor;
+
+	/** The problem requester. */
+	private IProblemRequestor fRequestor;
+	
+	/**
+	 * Creates a new comment reconcile strategy.
+	 *
+	 * @param viewer the source viewer
+	 * @param editor the text editor to operate on
+	 */
+	public CSpellingReconcileStrategy(ISourceViewer viewer, ITextEditor editor) {
+		super(viewer, CSpellingService.getInstance());
+		fEditor= editor;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
+	 */
+	public void reconcile(IRegion region) {
+		if (fRequestor != null && isSpellingEnabled())
+			super.reconcile(region);
+	}
+	
+	private boolean isSpellingEnabled() {
+		return EditorsUI.getPreferenceStore().getBoolean(SpellingService.PREFERENCE_SPELLING_ENABLED);
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingReconcileStrategy#createSpellingProblemCollector()
+	 */
+	protected ISpellingProblemCollector createSpellingProblemCollector() {
+		return new SpellingProblemCollector();
+	}
+	
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingReconcileStrategy#getContentType()
+	 */
+	protected IContentType getContentType() {
+		return CXX_CONTENT_TYPE;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
+	 */
+	public void setDocument(IDocument document) {
+		super.setDocument(document);
+		updateProblemRequester();
+	}
+
+	/**
+	 * Update the problem requester based on the current editor
+	 */
+	private void updateProblemRequester() {
+		IAnnotationModel model= getAnnotationModel();
+		fRequestor= (model instanceof IProblemRequestor) ? (IProblemRequestor) model : null;
+	}
+	
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.SpellingReconcileStrategy#getAnnotationModel()
+	 */
+	protected IAnnotationModel getAnnotationModel() {
+		final IDocumentProvider documentProvider= fEditor.getDocumentProvider();
+		if (documentProvider == null)
+			return null;
+		return documentProvider.getAnnotationModel(fEditor.getEditorInput());
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/CSpellingService.java

@@ -0,0 +1,71 @@
+/*******************************************************************************
+ * Copyright (c) 2007 Google, Inc and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * 	   Sergey Prigogin (Google) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.ISafeRunnable;
+import org.eclipse.core.runtime.SafeRunner;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.texteditor.spelling.ISpellingEngine;
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+import org.eclipse.ui.texteditor.spelling.SpellingContext;
+import org.eclipse.ui.texteditor.spelling.SpellingService;
+
+/**
+ * Platform's SpellingService uses a spelling engine that is independent
+ * of the content type (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=185695).
+ * We are providing our own SpellingService to be able to use the C/C++ specific
+ * spelling engine even when it is not selected in
+ * Preferences/General/Editors/Text Editors/Spelling.
+ */
+public class CSpellingService extends SpellingService {
+	private static CSpellingService fInstance;
+	
+	private IPreferenceStore fPreferences;
+	private ISpellingEngine fEngine;
+	
+
+	public static CSpellingService getInstance() {
+		if (fInstance == null) {
+			fInstance = new CSpellingService(EditorsUI.getPreferenceStore());
+		}
+		return fInstance;
+	}
+
+	public void check(final IDocument document, final IRegion[] regions, final SpellingContext context,
+			final ISpellingProblemCollector collector, final IProgressMonitor monitor) {
+		try {
+			collector.beginCollecting();
+			if (fPreferences.getBoolean(PREFERENCE_SPELLING_ENABLED))
+				if (fEngine == null) {
+					fEngine = new CSpellingEngine();
+				}
+				ISafeRunnable runnable= new ISafeRunnable() {
+					public void run() throws Exception {
+						fEngine.check(document, regions, context, collector, monitor);
+					}
+					public void handleException(Throwable x) {
+					}
+				};
+				SafeRunner.run(runnable);
+		} finally {
+			collector.endCollecting();
+		}
+	}
+	
+	private CSpellingService(IPreferenceStore preferences) {
+		super(preferences);
+		fPreferences = preferences;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/ChangeCaseProposal.java

@@ -0,0 +1,45 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.Locale;
+
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+/**
+ * Proposal to change the letter case of a word.
+ */
+public class ChangeCaseProposal extends WordCorrectionProposal {
+
+	/**
+	 * Creates a new change case proposal.
+	 *
+	 * @param arguments The problem arguments associated with the spelling problem
+	 * @param offset The offset in the document where to apply the proposal
+	 * @param length The length in the document to apply the proposal
+	 * @param context The invocation context for this proposal
+	 * @param locale The locale to use for the case change
+	 */
+	public ChangeCaseProposal(final String[] arguments, final int offset, final int length,
+			final IInvocationContext context, final Locale locale) {
+		super(Character.isLowerCase(arguments[0].charAt(0)) ? Character.toUpperCase(arguments[0].charAt(0)) + arguments[0].substring(1) : arguments[0],
+				arguments, offset, length, context, Integer.MAX_VALUE);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return Messages.Spelling_case_label;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/CoreSpellingProblem.java

@@ -0,0 +1,185 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+
+import org.eclipse.cdt.core.parser.IPersistableProblem;
+
+/**
+ * Spelling problem to be accepted by problem requesters.
+ */
+public class CoreSpellingProblem implements IPersistableProblem {
+	// spelling 'marker type' name. Only virtual as spelling problems are never persisted in markers. 
+	// marker type is used in the quickFixProcessor extension point
+	public static final String MARKER_TYPE= "org.eclipse.cdt.internal.spelling"; //$NON-NLS-1$
+	
+	/** The end offset of the problem */
+	private int fSourceEnd= 0;
+
+	/** The line number of the problem */
+	private int fLineNumber= 1;
+
+	/** The start offset of the problem */
+	private int fSourceStart= 0;
+
+	/** The description of the problem */
+	private String fMessage;
+
+	/** The misspelled word */
+	private String fWord;
+
+	/** Was the word found in the dictionary? */
+	private boolean fMatch;
+
+	/** Does the word start a new sentence? */
+	private boolean fSentence;
+
+	/** The associated document */
+	private IDocument fDocument;
+
+	/** The originating file name */
+	private String fOrigin;
+
+	/**
+	 * Initialize with the given parameters.
+	 *
+	 * @param start the start offset
+	 * @param end the end offset
+	 * @param line the line
+	 * @param message the message
+	 * @param word the word
+	 * @param match <code>true</code> iff the word was found in the dictionary
+	 * @param sentence <code>true</code> iff the word starts a sentence
+	 * @param document the document
+	 * @param origin the originating file name
+	 */
+	public CoreSpellingProblem(int start, int end, int line, String message, String word, boolean match, boolean sentence, IDocument document, String origin) {
+		super();
+		fSourceStart= start;
+		fSourceEnd= end;
+		fLineNumber= line;
+		fMessage= message;
+		fWord= word;
+		fMatch= match;
+		fSentence= sentence;
+		fDocument= document;
+		fOrigin= origin;
+	}
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getArguments()
+	 */
+	public String[] getArguments() {
+		String prefix= ""; //$NON-NLS-1$
+		String postfix= ""; //$NON-NLS-1$
+
+		try {
+			IRegion line= fDocument.getLineInformationOfOffset(fSourceStart);
+
+			prefix= fDocument.get(line.getOffset(), fSourceStart - line.getOffset());
+			postfix= fDocument.get(fSourceEnd + 1, line.getOffset() + line.getLength() - fSourceEnd);
+		} catch (BadLocationException exception) {
+			// Do nothing
+		}
+		return new String[] { fWord, prefix, postfix, fSentence ? Boolean.toString(true) : Boolean.toString(false), fMatch ? Boolean.toString(true) : Boolean.toString(false) };
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getID()
+	 */
+	public int getID() {
+		return CSpellingReconcileStrategy.SPELLING_PROBLEM_ID;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getMessage()
+	 */
+	public String getMessage() {
+		return fMessage;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getOriginatingFileName()
+	 */
+	public char[] getOriginatingFileName() {
+		return fOrigin.toCharArray();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getSourceEnd()
+	 */
+	public int getSourceEnd() {
+		return fSourceEnd;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getSourceLineNumber()
+	 */
+	public int getSourceLineNumber() {
+		return fLineNumber;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#getSourceStart()
+	 */
+	public int getSourceStart() {
+		return fSourceStart;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#isError()
+	 */
+	public boolean isError() {
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#isWarning()
+	 */
+	public boolean isWarning() {
+		return true;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#setSourceStart(int)
+	 */
+	public void setSourceStart(int sourceStart) {
+		fSourceStart= sourceStart;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#setSourceEnd(int)
+	 */
+	public void setSourceEnd(int sourceEnd) {
+		fSourceEnd= sourceEnd;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.core.parser.IProblem#setSourceLineNumber(int)
+	 */
+	public void setSourceLineNumber(int lineNumber) {
+		fLineNumber= lineNumber;
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.core.parser.CategorizedProblem#getMarkerType()
+	 */
+	public String getMarkerType() {
+		return MARKER_TYPE;
+	}
+	
+	public boolean checkCategory(int bitmask) {
+		return (getID() & bitmask) != 0;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/DisableSpellCheckingProposal.java

@@ -0,0 +1,99 @@
+/*******************************************************************************
+ * Copyright (c) 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.texteditor.spelling.SpellingService;
+
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+
+
+/**
+ * Proposal to disable spell checking.
+ */
+public class DisableSpellCheckingProposal implements ICCompletionProposal {
+	private final String ID_DISABLE = "DISABLE"; //$NON-NLS-1$
+	
+	/** The invocation context */
+	private IInvocationContext fContext;
+
+	/**
+	 * Creates a new proposal.
+	 *
+	 * @param context the invocation context
+	 */
+	public DisableSpellCheckingProposal(IInvocationContext context) {
+		fContext= context;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
+	 */
+	public final void apply(final IDocument document) {
+		IPreferenceStore store= EditorsUI.getPreferenceStore();
+		store.setValue(SpellingService.PREFERENCE_SPELLING_ENABLED, false);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
+	 */
+	public String getAdditionalProposalInfo() {
+		return Messages.Spelling_disable_info;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
+	 */
+	public final IContextInformation getContextInformation() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return Messages.Spelling_disable_label;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
+	 */
+	public Image getImage() {
+		return CPluginImages.get(CPluginImages.IMG_OBJS_NLS_NEVER_TRANSLATE);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposal#getRelevance()
+	 */
+	public final int getRelevance() {
+		return Integer.MIN_VALUE + 1;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
+	 */
+	public final Point getSelection(final IDocument document) {
+		return new Point(fContext.getSelectionOffset(), fContext.getSelectionLength());
+	}
+	
+	public String getIdString() {
+		return ID_DISABLE;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/Messages.java

@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM - Initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.osgi.util.NLS;
+
+public class Messages extends NLS {
+	private static final String BUNDLE_NAME = Messages.class.getName();
+
+	public static String AbstractSpellingDictionary_encodingError;
+	public static String Spelling_add_askToConfigure_ignoreMessage;
+	public static String Spelling_add_askToConfigure_question;
+	public static String Spelling_add_askToConfigure_title;
+	public static String Spelling_add_info;
+	public static String Spelling_add_label;
+	public static String Spelling_case_label;
+	public static String Spelling_correct_label;
+	public static String Spelling_disable_info;
+	public static String Spelling_disable_label;
+	public static String Spelling_error_case_label;
+	public static String Spelling_error_label;
+	public static String Spelling_ignore_info;
+	public static String Spelling_ignore_label;
+
+	static {
+		// Initialize resource bundle
+		NLS.initializeMessages(BUNDLE_NAME, Messages.class);
+	}
+
+	private Messages() {
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/Messages.properties

@@ -0,0 +1,26 @@
+###############################################################################
+# Copyright (c) 2000, 2007 IBM Corporation and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+# Contributors:
+#     IBM Corporation - initial API and implementation
+#     Sergey Prigogin (Google)
+###############################################################################
+
+AbstractSpellingDictionary_encodingError=Could not read: ''{0}'', where the bad characters are replaced by ''{1}''. Check the encoding of the spelling dictionary ({2}).
+Spelling_add_askToConfigure_ignoreMessage=&Do not show 'Add word' proposals if user dictionary is missing
+Spelling_add_askToConfigure_question=A user dictionary is needed to add words.\nDo you want to configure it now?\n
+Spelling_add_askToConfigure_title=Missing User Dictionary
+Spelling_add_info=Adds the word ''{0}'' to the dictionary
+Spelling_add_label=Add ''{0}'' to dictionary
+Spelling_case_label=Change to upper case
+Spelling_correct_label=Change to ''{0}''
+Spelling_disable_info=Disables spell checking.
+Spelling_disable_label=Disable spell checking
+Spelling_error_case_label= The word ''{0}'' should have an initial upper case letter
+Spelling_error_label=The word ''{0}'' is not correctly spelled
+Spelling_ignore_info=Ignores ''{0}'' during the current session
+Spelling_ignore_label=Ignore ''{0}'' during the current session

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/SpellCheckEngine.java

@@ -0,0 +1,429 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.Map.Entry;
+
+import org.eclipse.core.runtime.FileLocator;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.ui.text.spelling.engine.DefaultSpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.LocaleSensitiveSpellDictionary;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.PersistentSpellDictionary;
+
+/**
+ * Spell check engine for C/C++ source spell checking.
+ */
+public class SpellCheckEngine implements ISpellCheckEngine, IPropertyChangeListener {
+	/** The dictionary location */
+	public static final String DICTIONARY_LOCATION= "dictionaries/"; //$NON-NLS-1$
+
+	/** The singleton engine instance */
+	private static ISpellCheckEngine fgEngine= null;
+	
+	/**
+	 * Caches the locales of installed dictionaries.
+	 */
+	private static Set fgLocalesWithInstalledDictionaries;
+
+	
+	/**
+	 * Returns the locales for which this
+	 * spell check engine has dictionaries.
+	 *
+	 * @return The available locales for this engine
+	 */
+	public static Set getLocalesWithInstalledDictionaries() {
+		if (fgLocalesWithInstalledDictionaries != null)
+			return fgLocalesWithInstalledDictionaries;
+		
+		URL location;
+		try {
+			location= getDictionaryLocation();
+			if (location == null)
+				return fgLocalesWithInstalledDictionaries= Collections.EMPTY_SET;
+		} catch (MalformedURLException ex) {
+			CUIPlugin.getDefault().log(ex);
+			return fgLocalesWithInstalledDictionaries= Collections.EMPTY_SET;
+		}
+		
+		String[] fileNames;
+		try {
+			URL url= FileLocator.toFileURL(location);
+			File file= new File(url.getFile());
+			if (!file.isDirectory())
+				return fgLocalesWithInstalledDictionaries= Collections.EMPTY_SET;
+			fileNames= file.list();
+			if (fileNames == null)
+				return fgLocalesWithInstalledDictionaries= Collections.EMPTY_SET;
+		} catch (IOException ex) {
+			CUIPlugin.getDefault().log(ex);
+			return fgLocalesWithInstalledDictionaries= Collections.EMPTY_SET;
+		}
+		
+		fgLocalesWithInstalledDictionaries= new HashSet();
+		int fileNameCount= fileNames.length;
+		for (int i= 0; i < fileNameCount; i++) {
+			String fileName= fileNames[i];
+			int localeEnd= fileName.indexOf(".dictionary"); //$NON-NLS-1$ 
+			if (localeEnd > 1) {
+				String localeName= fileName.substring(0, localeEnd);
+				int languageEnd=localeName.indexOf('_');
+				if (languageEnd == -1) {
+					fgLocalesWithInstalledDictionaries.add(new Locale(localeName));
+				} else if (languageEnd == 2 && localeName.length() == 5) {
+					fgLocalesWithInstalledDictionaries.add(new Locale(localeName.substring(0, 2), localeName.substring(3)));
+				} else if (localeName.length() > 6 && localeName.charAt(5) == '_') {
+					fgLocalesWithInstalledDictionaries.add(new Locale(localeName.substring(0, 2), localeName.substring(3, 5), localeName.substring(6)));
+				}
+			}
+		}
+
+		return fgLocalesWithInstalledDictionaries;
+	}
+
+	/**
+	 * Returns the default locale for this engine.
+	 *
+	 * @return The default locale
+	 */
+	public static Locale getDefaultLocale() {
+		return Locale.getDefault();
+	}
+	
+	/**
+	 * Returns the dictionary closest to the given locale.
+	 *
+	 * @param locale the locale
+	 * @return the dictionary or <code>null</code> if none is suitable
+	 */
+	public ISpellDictionary findDictionary(Locale locale) {
+		ISpellDictionary dictionary= (ISpellDictionary)fLocaleDictionaries.get(locale);
+		if (dictionary != null)
+			return dictionary;
+		
+		// Try same language
+		String language= locale.getLanguage();
+		Iterator iter= fLocaleDictionaries.entrySet().iterator();
+		while (iter.hasNext()) {
+			Entry entry= (Entry)iter.next();
+			Locale dictLocale= (Locale)entry.getKey();
+			if (dictLocale.getLanguage().equals(language))
+				return (ISpellDictionary)entry.getValue();
+		}
+		
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine#findDictionary(java.util.Locale)
+	 */
+	public static Locale findClosestLocale(Locale locale) {
+		if (locale == null || locale.toString().length() == 0)
+			return locale;
+		
+		if (getLocalesWithInstalledDictionaries().contains(locale))
+			return locale;
+
+		// Try same language
+		String language= locale.getLanguage();
+		Iterator iter= getLocalesWithInstalledDictionaries().iterator();
+		while (iter.hasNext()) {
+			Locale dictLocale= (Locale)iter.next();
+			if (dictLocale.getLanguage().equals(language))
+				return dictLocale;
+		}
+		
+		// Try whether American English is present
+		Locale defaultLocale= Locale.US;
+		if (getLocalesWithInstalledDictionaries().contains(defaultLocale))
+			return defaultLocale;
+		
+		return null;
+	}
+
+	/**
+	 * Returns the URL for the dictionary location where
+	 * the Platform dictionaries are located.
+	 * <p>
+	 * This is in <code>org.eclipse.cdt.ui/dictionaries/</code>
+	 * which can also be populated via fragments.
+	 * </p>
+	 *
+	 * @throws MalformedURLException if the URL could not be created
+	 * @return The dictionary location, or <code>null</code> iff the location is not known
+	 */
+	public static URL getDictionaryLocation() throws MalformedURLException {
+		// Unfortunately, dictionaries used by JDT are not accessible,
+		// so we have to provide our own copies of the same files.
+		final CUIPlugin plugin= CUIPlugin.getDefault();
+		if (plugin != null)
+			return plugin.getBundle().getEntry("/" + DICTIONARY_LOCATION); //$NON-NLS-1$
+
+		return null;
+	}
+
+	/**
+	 * Returns the singleton instance of the spell check engine.
+	 *
+	 * @return The singleton instance of the spell check engine
+	 */
+	public static final synchronized ISpellCheckEngine getInstance() {
+		if (fgEngine == null)
+			fgEngine= new SpellCheckEngine();
+
+		return fgEngine;
+	}
+	
+	/**
+	 * Shuts down the singleton instance of the spell check engine.
+	 */
+	public static final synchronized void shutdownInstance() {
+		if (fgEngine != null) {
+			fgEngine.shutdown();
+			fgEngine= null;
+		}
+	}
+
+	/** The registered locale insensitive dictionaries */
+	private Set fGlobalDictionaries= new HashSet();
+
+	/** The spell checker for fLocale */
+	private ISpellChecker fChecker= null;
+
+	/** The registered locale sensitive dictionaries */
+	private Map fLocaleDictionaries= new HashMap();
+
+	/** The user dictionary */
+	private ISpellDictionary fUserDictionary= null;
+
+	/**
+	 * Creates a new spell check manager.
+	 */
+	private SpellCheckEngine() {
+		fGlobalDictionaries.add(new TaskTagDictionary());
+
+		try {
+			Locale locale= null;
+			final URL location= getDictionaryLocation();
+
+			for (final Iterator iterator= getLocalesWithInstalledDictionaries().iterator(); iterator.hasNext();) {
+				locale= (Locale)iterator.next();
+				fLocaleDictionaries.put(locale, new LocaleSensitiveSpellDictionary(locale, location));
+			}
+		} catch (MalformedURLException exception) {
+			// Do nothing
+		}
+		
+		SpellingPreferences.addPropertyChangeListener(this);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine#getSpellChecker()
+	 */
+	public final synchronized ISpellChecker getSpellChecker() throws IllegalStateException {
+		if (fGlobalDictionaries == null)
+			throw new IllegalStateException("spell checker has been shut down"); //$NON-NLS-1$
+		
+		IPreferenceStore store= CUIPlugin.getDefault().getPreferenceStore();
+		Locale locale= getCurrentLocale(store);
+		if (fUserDictionary == null && "".equals(locale.toString())) //$NON-NLS-1$
+			return null;
+		
+		if (fChecker != null && fChecker.getLocale().equals(locale))
+			return fChecker;
+		
+		resetSpellChecker();
+		
+		fChecker= new DefaultSpellChecker(store, locale);
+		resetUserDictionary();
+		
+		for (Iterator iterator= fGlobalDictionaries.iterator(); iterator.hasNext();) {
+			ISpellDictionary dictionary= (ISpellDictionary)iterator.next();
+			fChecker.addDictionary(dictionary);
+		}
+
+		ISpellDictionary dictionary= findDictionary(fChecker.getLocale());
+		if (dictionary != null)
+			fChecker.addDictionary(dictionary);
+
+		return fChecker;
+	}
+
+	/**
+	 * Returns the current locale of the spelling preferences.
+	 *
+	 * @param store the preference store
+	 * @return The current locale of the spelling preferences
+	 */
+	private Locale getCurrentLocale(IPreferenceStore store) {
+		return convertToLocale(SpellingPreferences.getSpellingLocale());
+	}
+	
+	public static Locale convertToLocale(String locale) {
+		Locale defaultLocale= SpellCheckEngine.getDefaultLocale();
+		if (locale.equals(defaultLocale.toString()))
+			return defaultLocale;
+		
+		if (locale.length() >= 5)
+			return new Locale(locale.substring(0, 2), locale.substring(3, 5));
+		
+		return new Locale(""); //$NON-NLS-1$
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellCheckEngine#getLocale()
+	 */
+	public synchronized final Locale getLocale() {
+		if (fChecker == null)
+			return null;
+		
+		return fChecker.getLocale();
+	}
+
+	/*
+	 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
+	 */
+	public final void propertyChange(final PropertyChangeEvent event) {
+		if (event.getProperty().equals(SpellingPreferences.SPELLING_LOCALE)) {
+			resetSpellChecker();
+			return;
+		}
+		
+		if (event.getProperty().equals(SpellingPreferences.SPELLING_USER_DICTIONARY)) {
+			resetUserDictionary();
+			return;
+		}
+		
+		if (event.getProperty().equals(SpellingPreferences.SPELLING_USER_DICTIONARY_ENCODING)) {
+			resetUserDictionary();
+			return;
+		}
+	}
+
+	/**
+	 * Resets the current checker's user dictionary.
+	 */
+	private synchronized void resetUserDictionary() {
+		if (fChecker == null)
+			return;
+		
+		// Update user dictionary
+		if (fUserDictionary != null) {
+			fChecker.removeDictionary(fUserDictionary);
+			fUserDictionary.unload();
+			fUserDictionary= null;
+		}
+
+		final String filePath= SpellingPreferences.getSpellingUserDictionary();
+		if (filePath.length() > 0) {
+			try {
+				File file= new File(filePath);
+				if (!file.exists() && !file.createNewFile())
+					return;
+				
+				final URL url= new URL("file", null, filePath); //$NON-NLS-1$
+				InputStream stream= url.openStream();
+				if (stream != null) {
+					try {
+						fUserDictionary= new PersistentSpellDictionary(url);
+						fChecker.addDictionary(fUserDictionary);
+					} finally {
+						stream.close();
+					}
+				}
+			} catch (MalformedURLException exception) {
+				// Do nothing
+			} catch (IOException exception) {
+				// Do nothing
+			}
+		}
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine#registerDictionary(org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary)
+	 */
+	public synchronized final void registerGlobalDictionary(final ISpellDictionary dictionary) {
+		fGlobalDictionaries.add(dictionary);
+		resetSpellChecker();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine#registerDictionary(java.util.Locale, org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary)
+	 */
+	public synchronized final void registerDictionary(final Locale locale, final ISpellDictionary dictionary) {
+		fLocaleDictionaries.put(locale, dictionary);
+		resetSpellChecker();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine#unload()
+	 */
+	public synchronized final void shutdown() {
+		SpellingPreferences.removePropertyChangeListener(this);
+
+		ISpellDictionary dictionary= null;
+		for (final Iterator iterator= fGlobalDictionaries.iterator(); iterator.hasNext();) {
+			dictionary= (ISpellDictionary)iterator.next();
+			dictionary.unload();
+		}
+		fGlobalDictionaries= null;
+
+		for (final Iterator iterator= fLocaleDictionaries.values().iterator(); iterator.hasNext();) {
+			dictionary= (ISpellDictionary)iterator.next();
+			dictionary.unload();
+		}
+		fLocaleDictionaries= null;
+
+		fUserDictionary= null;
+		fChecker= null;
+	}
+	
+	private synchronized void resetSpellChecker() {
+		if (fChecker != null) {
+			ISpellDictionary dictionary= (ISpellDictionary)fLocaleDictionaries.get(fChecker.getLocale());
+			if (dictionary != null)
+				dictionary.unload();
+		}
+		fChecker= null;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellCheckEngine#unregisterDictionary(org.eclipse.cdt.ui.text.spelling.engine.ISpellDictionary)
+	 */
+	public synchronized final void unregisterDictionary(final ISpellDictionary dictionary) {
+		fGlobalDictionaries.remove(dictionary);
+		fLocaleDictionaries.values().remove(dictionary);
+		dictionary.unload();
+		resetSpellChecker();
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/SpellCheckIterator.java

@@ -0,0 +1,336 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ ******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.LinkedList;
+import java.util.Locale;
+
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+
+import com.ibm.icu.text.BreakIterator;
+
+import org.eclipse.cdt.internal.ui.text.spelling.engine.DefaultSpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckIterator;
+
+
+/**
+ * Iterator to spell check multiline comment regions.
+ */
+public class SpellCheckIterator implements ISpellCheckIterator {
+	/** The content of the region */
+	protected final String fContent;
+
+	/** The last token */
+	protected String fLastToken= null;
+
+	/** The next break */
+	protected int fNext= 1;
+
+	/** The offset of the region */
+	protected final int fOffset;
+
+	/** The predecessor break */
+	private int fPredecessor;
+
+	/** The previous break */
+	protected int fPrevious= 0;
+
+	/** The sentence breaks */
+	private final LinkedList fSentenceBreaks= new LinkedList();
+
+	/** Does the current word start a sentence? */
+	private boolean fStartsSentence= false;
+
+	/** The successor break */
+	protected int fSuccessor;
+
+	/** The word iterator */
+	private final BreakIterator fWordIterator;
+
+	private boolean fIsIgnoringSingleLetters;
+
+	/**
+	 * Creates a new spell check iterator.
+	 *
+	 * @param document the document containing the specified partition
+	 * @param region the region to spell check
+	 * @param locale the locale to use for spell checking
+	 */
+	public SpellCheckIterator(IDocument document, IRegion region, Locale locale) {
+		this(document, region, locale, BreakIterator.getWordInstance(locale));
+	}
+
+	/**
+	 * Creates a new spell check iterator.
+	 *
+	 * @param document the document containing the specified partition
+	 * @param region the region to spell check
+	 * @param locale the locale to use for spell checking
+	 * @param breakIterator the break-iterator
+	 */
+	public SpellCheckIterator(IDocument document, IRegion region, Locale locale, BreakIterator breakIterator) {
+		fOffset= region.getOffset();
+		fWordIterator= breakIterator;
+
+		String content;
+		try {
+			content= document.get(region.getOffset(), region.getLength());
+		} catch (Exception exception) {
+			content= ""; //$NON-NLS-1$
+		}
+		fContent= content;
+
+		fWordIterator.setText(content);
+		fPredecessor= fWordIterator.first();
+		fSuccessor= fWordIterator.next();
+
+		final BreakIterator iterator= BreakIterator.getSentenceInstance(locale);
+		iterator.setText(content);
+
+		int offset= iterator.current();
+		while (offset != BreakIterator.DONE) {
+			fSentenceBreaks.add(new Integer(offset));
+			offset= iterator.next();
+		}
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckIterator#setIgnoreSingleLetters(boolean)
+	 */
+	public void setIgnoreSingleLetters(boolean state) {
+		fIsIgnoringSingleLetters= state;
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellCheckIterator#getBegin()
+	 */
+	public final int getBegin() {
+		return fPrevious + fOffset;
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellCheckIterator#getEnd()
+	 */
+	public final int getEnd() {
+		return fNext + fOffset - 1;
+	}
+
+	/*
+	 * @see java.util.Iterator#hasNext()
+	 */
+	public final boolean hasNext() {
+		return fSuccessor != BreakIterator.DONE;
+	}
+
+	/**
+	 * Does the specified token consist of at least one letter and digits
+	 * only?
+	 *
+	 * @param begin the begin index
+	 * @param end the end index
+	 * @return <code>true</code> iff the token consists of digits and at
+	 *         least one letter only, <code>false</code> otherwise
+	 */
+	protected final boolean isAlphaNumeric(final int begin, final int end) {
+		char character= 0;
+		boolean letter= false;
+		for (int index= begin; index < end; index++) {
+			character= fContent.charAt(index);
+			if (Character.isLetter(character))
+				letter= true;
+
+			if (!Character.isLetterOrDigit(character))
+				return false;
+		}
+		return letter;
+	}
+
+	/**
+	 * Checks the last token against the given tags?
+	 *
+	 * @param tags the tags to check
+	 * @return <code>true</code> iff the last token is in the given array
+	 */
+	protected final boolean isToken(final String[] tags) {
+		return isToken(fLastToken, tags);
+	}
+	
+	/**
+	 * Checks the given  token against the given tags?
+	 *
+	 * @param token the token to check
+	 * @param tags the tags to check
+	 * @return <code>true</code> iff the last token is in the given array
+	 */
+	protected final boolean isToken(final String token, final String[] tags) {
+		if (token != null) {
+			for (int index= 0; index < tags.length; index++) {
+				if (token.equals(tags[index]))
+					return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Is the current token a single letter token surrounded by
+	 * non-whitespace characters?
+	 *
+	 * @param begin the begin index
+	 * @return <code>true</code> iff the token is a single letter token,
+	 *         <code>false</code> otherwise
+	 */
+	protected final boolean isSingleLetter(final int begin) {
+		if (!Character.isLetter(fContent.charAt(begin)))
+			return false;
+
+		if (begin > 0 && !Character.isWhitespace(fContent.charAt(begin - 1)))
+			return false;
+
+		if (begin < fContent.length() - 1 && !Character.isWhitespace(fContent.charAt(begin + 1)))
+			return false;
+		
+		return true;
+	}
+
+	/**
+	 * Does the specified token look like an URL?
+	 *
+	 * @param begin the begin index
+	 * @return <code>true</code> iff this token look like an URL,
+	 *         <code>false</code> otherwise
+	 */
+	protected final boolean isUrlToken(final int begin) {
+		for (int index= 0; index < DefaultSpellChecker.URL_PREFIXES.length; index++) {
+			if (fContent.startsWith(DefaultSpellChecker.URL_PREFIXES[index], begin))
+				return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Does the specified token consist of whitespace only?
+	 *
+	 * @param begin the begin index
+	 * @param end the end index
+	 * @return <code>true</code> iff the token consists of whitespace
+	 *         only, <code>false</code> otherwise
+	 */
+	protected final boolean isWhitespace(final int begin, final int end) {
+		for (int index= begin; index < end; index++) {
+			if (!Character.isWhitespace(fContent.charAt(index)))
+				return false;
+		}
+		return true;
+	}
+
+	/*
+	 * @see java.util.Iterator#next()
+	 */
+	public Object next() {
+		String token= nextToken();
+		while (token == null && fSuccessor != BreakIterator.DONE)
+			token= nextToken();
+
+		fLastToken= token;
+		return token;
+	}
+
+	/**
+	 * Advances the end index to the next word break.
+	 */
+	protected final void nextBreak() {
+		fNext= fSuccessor;
+		fPredecessor= fSuccessor;
+		fSuccessor= fWordIterator.next();
+	}
+
+	/**
+	 * Returns the next sentence break.
+	 *
+	 * @return the next sentence break
+	 */
+	protected final int nextSentence() {
+		return ((Integer) fSentenceBreaks.getFirst()).intValue();
+	}
+
+	/**
+	 * Determines the next token to be spell checked.
+	 *
+	 * @return the next token to be spell checked, or <code>null</code>
+	 *         iff the next token is not a candidate for spell checking.
+	 */
+	protected String nextToken() {
+		String token= null;
+		fPrevious= fPredecessor;
+		fStartsSentence= false;
+		nextBreak();
+
+		boolean update= false;
+		if (fNext - fPrevious > 0) {
+			if (!isWhitespace(fPrevious, fNext) && isAlphaNumeric(fPrevious, fNext)) {
+				if (isUrlToken(fPrevious)) {
+					skipTokens(fPrevious, ' ');
+				} else if (fNext - fPrevious > 1 || isSingleLetter(fPrevious) && !fIsIgnoringSingleLetters) {
+					token= fContent.substring(fPrevious, fNext);
+				}
+				update= true;
+			}
+		}
+
+		if (update && fSentenceBreaks.size() > 0) {
+			if (fPrevious >= nextSentence()) {
+				while (fSentenceBreaks.size() > 0 && fPrevious >= nextSentence())
+					fSentenceBreaks.removeFirst();
+
+				fStartsSentence= (fLastToken == null) || (token != null);
+			}
+		}
+		return token;
+	}
+
+	/*
+	 * @see java.util.Iterator#remove()
+	 */
+	public final void remove() {
+		throw new UnsupportedOperationException();
+	}
+
+	/**
+	 * Skip the tokens until the stop character is reached.
+	 *
+	 * @param begin the begin index
+	 * @param stop the stop character
+	 */
+	protected final void skipTokens(final int begin, final char stop) {
+		int end= begin;
+
+		while (end < fContent.length() && fContent.charAt(end) != stop)
+			end++;
+
+		if (end < fContent.length()) {
+			fNext= end;
+			fPredecessor= fNext;
+			fSuccessor= fWordIterator.following(fNext);
+		} else {
+			fSuccessor= BreakIterator.DONE;
+		}
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellCheckIterator#startsSentence()
+	 */
+	public final boolean startsSentence() {
+		return fStartsSentence;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/SpellingEngine.java

@@ -0,0 +1,85 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.ui.texteditor.spelling.ISpellingEngine;
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+import org.eclipse.ui.texteditor.spelling.SpellingContext;
+
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEventListener;
+
+/**
+ * Internal abstract spelling engine, subclasses provide a content-type specific implementation.
+ */
+public abstract class SpellingEngine implements ISpellingEngine {
+	/**
+	 * {@link ISpellEvent}listener that forwards events as
+	 * {@link org.eclipse.ui.texteditor.spelling.SpellingProblem}.
+	 */
+	protected static class SpellEventListener implements ISpellEventListener {
+		/** Spelling problem collector */
+		private ISpellingProblemCollector fCollector;
+		
+		/**
+		 * The document.
+		 */
+		private IDocument fDocument;
+
+		/**
+		 * Initialize with the given spelling problem collector.
+		 *
+		 * @param collector the spelling problem collector
+		 * @param document the document
+		 */
+		public SpellEventListener(ISpellingProblemCollector collector, IDocument document) {
+			fCollector= collector;
+			fDocument= document;
+		}
+
+		/*
+		 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEventListener#handle(org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent)
+		 */
+		public void handle(ISpellEvent event) {
+			fCollector.accept(new CSpellingProblem(event, fDocument));
+		}
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingEngine#check(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.IRegion[], org.eclipse.ui.texteditor.spelling.SpellingContext, org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public void check(IDocument document, IRegion[] regions, SpellingContext context, ISpellingProblemCollector collector, IProgressMonitor monitor) {
+		if (collector != null) {
+			final ISpellCheckEngine spellingEngine= SpellCheckEngine.getInstance();
+			ISpellChecker checker= spellingEngine.getSpellChecker();
+			if (checker != null)
+				check(document, regions, checker, collector, monitor);
+		}
+	}
+
+	/**
+	 * Spell checks the given document regions with the given arguments.
+	 *
+	 * @param document the document
+	 * @param regions the regions
+	 * @param checker the spell checker
+	 * @param collector the spelling problem collector
+	 * @param monitor the progress monitor, can be <code>null</code>
+	 */
+	protected abstract void check(IDocument document, IRegion[] regions, ISpellChecker checker, ISpellingProblemCollector collector, IProgressMonitor monitor);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/SpellingEngineDispatcher.java

@@ -0,0 +1,103 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.content.IContentType;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.texteditor.spelling.ISpellingEngine;
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+import org.eclipse.ui.texteditor.spelling.SpellingContext;
+import org.eclipse.ui.texteditor.spelling.SpellingEngineDescriptor;
+
+import org.eclipse.cdt.core.CCorePlugin;
+
+/**
+ * A dispatcher that decides what spelling engine to use depending on content type.
+ * When C/C++ spelling engine is selected in Preferences/General/Editors/Text Editors/Spelling
+ * this class is called to perform spelling check for all text-based content types.
+ * If the content type does not match one of C/C++ content types, the spelling check
+ * is delegated to the default spelling engine, most likely the one provided by JDT.
+ */
+public class SpellingEngineDispatcher implements ISpellingEngine {
+	private static final String C_SPELLING_ENGINE_ID = "org.eclipse.cdt.internal.ui.text.spelling.CSpellingEngine"; //$NON-NLS-1$
+
+	/** C/C++ source content type */
+	private static final IContentType CHEADER_CONTENT_TYPE= Platform.getContentTypeManager().getContentType(CCorePlugin.CONTENT_TYPE_CHEADER);
+	private static final IContentType CSOURCE_CONTENT_TYPE= Platform.getContentTypeManager().getContentType(CCorePlugin.CONTENT_TYPE_CSOURCE);
+	private static final IContentType CXXHEADER_CONTENT_TYPE= Platform.getContentTypeManager().getContentType(CCorePlugin.CONTENT_TYPE_CXXHEADER);
+	private static final IContentType CXXSOURCE_CONTENT_TYPE= Platform.getContentTypeManager().getContentType(CCorePlugin.CONTENT_TYPE_CXXSOURCE);
+
+	/** Available spelling engines by content type */
+	private Map fEngines= new HashMap();
+	private ISpellingEngine defaultEngine;
+
+	/**
+	 * Initialize concrete engines.
+	 */
+	public SpellingEngineDispatcher() {
+		SpellingEngine engine = new CSpellingEngine();
+		if (CHEADER_CONTENT_TYPE != null)
+			fEngines.put(CHEADER_CONTENT_TYPE, engine);
+		if (CSOURCE_CONTENT_TYPE != null)
+			fEngines.put(CSOURCE_CONTENT_TYPE, engine);
+		if (CXXHEADER_CONTENT_TYPE != null)
+			fEngines.put(CXXHEADER_CONTENT_TYPE, engine);
+		if (CXXSOURCE_CONTENT_TYPE != null)
+			fEngines.put(CXXSOURCE_CONTENT_TYPE, engine);
+		try {
+			SpellingEngineDescriptor descriptor =
+					EditorsUI.getSpellingService().getDefaultSpellingEngineDescriptor();
+			if (!C_SPELLING_ENGINE_ID.equals(descriptor.getId())) {  // Do not delegate to itself.
+				defaultEngine =	descriptor.createEngine();
+			}
+		} catch (CoreException e) {
+		}
+	}
+
+	/*
+	 * @see org.eclipse.ui.texteditor.spelling.ISpellingEngine#check(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.IRegion[], org.eclipse.ui.texteditor.spelling.SpellingContext, org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public void check(IDocument document, IRegion[] regions, SpellingContext context, ISpellingProblemCollector collector, IProgressMonitor monitor) {
+		ISpellingEngine engine= getEngine(context.getContentType());
+		if (engine == null)
+			engine= defaultEngine;
+		if (engine != null)
+			engine.check(document, regions, context, collector, monitor);
+	}
+
+	/**
+	 * Returns a spelling engine for the given content type or
+	 * <code>null</code> if none could be found.
+	 *
+	 * @param contentType the content type
+	 * @return a spelling engine for the given content type or
+	 *         <code>null</code> if none could be found
+	 */
+	private ISpellingEngine getEngine(IContentType contentType) {
+		if (contentType == null)
+			return null;
+
+		if (fEngines.containsKey(contentType))
+			return (ISpellingEngine) fEngines.get(contentType);
+
+		return getEngine(contentType.getBaseType());
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/SpellingPreferences.java

@@ -0,0 +1,150 @@
+/*******************************************************************************
+ * Copyright (c) 2007 Google, Inc and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * 	   Sergey Prigogin (Google) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.cdt.ui.PreferenceConstants;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.util.IPropertyChangeListener;
+
+/**
+ * This class encapsulates spelling preferences.
+ * If the source of spelling preferences were to move from CDT to the platform,
+ * this class would make refactoring easier.
+ */
+public class SpellingPreferences {
+	private static IPreferenceStore preferenceStore = PreferenceConstants.getPreferenceStore();
+	static final String SPELLING_LOCALE = PreferenceConstants.SPELLING_LOCALE;
+	static final String SPELLING_USER_DICTIONARY = PreferenceConstants.SPELLING_USER_DICTIONARY;
+	static final String SPELLING_USER_DICTIONARY_ENCODING = PreferenceConstants.SPELLING_USER_DICTIONARY_ENCODING;
+	private static final String SPELLING_PROPOSAL_THRESHOLD = PreferenceConstants.SPELLING_PROPOSAL_THRESHOLD;
+	private static final String SPELLING_ENABLE_CONTENTASSIST = PreferenceConstants.SPELLING_ENABLE_CONTENTASSIST;
+	private static final String SPELLING_IGNORE_DIGITS = PreferenceConstants.SPELLING_IGNORE_DIGITS;
+	private static final String SPELLING_IGNORE_MIXED = PreferenceConstants.SPELLING_IGNORE_MIXED;
+	private static final String SPELLING_IGNORE_NON_LETTERS = PreferenceConstants.SPELLING_IGNORE_NON_LETTERS;
+	private static final String SPELLING_IGNORE_SENTENCE = PreferenceConstants.SPELLING_IGNORE_SENTENCE;
+	private static final String SPELLING_IGNORE_SINGLE_LETTERS = PreferenceConstants.SPELLING_IGNORE_SINGLE_LETTERS;
+	private static final String SPELLING_IGNORE_STRING_LITERALS = PreferenceConstants.SPELLING_IGNORE_STRING_LITERALS;
+	private static final String SPELLING_IGNORE_UPPER = PreferenceConstants.SPELLING_IGNORE_UPPER;
+	private static final String SPELLING_IGNORE_URLS = PreferenceConstants.SPELLING_IGNORE_URLS;
+	
+	/**
+	 * @see IPreferenceStore#addPropertyChangeListener(IPropertyChangeListener)
+	 */
+    public static void addPropertyChangeListener(IPropertyChangeListener listener) {
+  		preferenceStore.addPropertyChangeListener(listener); 
+    }
+	
+	/**
+	 * @see IPreferenceStore#removePropertyChangeListener(IPropertyChangeListener)
+	 */
+    public static void removePropertyChangeListener(IPropertyChangeListener listener) {
+   		preferenceStore.removePropertyChangeListener(listener); 
+    }
+
+	/**
+	 * The locale used for spell checking.
+	 */
+	public static String getSpellingLocale() {
+		return preferenceStore.getString(SPELLING_LOCALE);
+	}
+	
+	/**
+	 * The workspace user dictionary.
+	 */
+	public static String getSpellingUserDictionary() {
+		return preferenceStore.getString(SPELLING_USER_DICTIONARY);
+	}
+	
+	/**
+	 * The encoding of the workspace user dictionary.
+	 */
+	public static String getSpellingUserDictionaryEncoding() {
+		return preferenceStore.getString(SPELLING_USER_DICTIONARY_ENCODING);
+	}
+	
+	/**
+	 * Returns the number of proposals offered during spell checking.
+	 */
+	public static int spellingProposalThreshold() {
+		return preferenceStore.getInt(SPELLING_PROPOSAL_THRESHOLD);
+	}
+
+	/**
+	 * Returns <code>true</code> if spelling content assist is enabled.
+	 */
+	public static boolean isEnabledSpellingContentAssist() {
+		return preferenceStore.getBoolean(SPELLING_ENABLE_CONTENTASSIST);
+	}
+	
+	/**
+	 * Returns <code>true</code> if words containing digits should
+	 * be skipped during spell checking.
+	 */
+	public static boolean isIgnoreDigits() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_DIGITS);
+	}
+
+	/**
+	 * Returns <code>true</code> if mixed case words should be
+	 * skipped during spell checking.
+	 */
+	public static boolean isIgnoreMixed() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_MIXED);
+	}
+	
+	/**
+	 * Returns <code>true</code> if non-letters at word boundaries
+	 * should be ignored during spell checking.
+	 */
+	public static boolean isIgnoreNonLetters() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_NON_LETTERS);
+	}
+	
+	/**
+	 * Returns <code>true</code> if sentence capitalization should
+	 * be ignored during spell checking.
+	 */
+	public static boolean isIgnoreSentence() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_SENTENCE);
+	}
+	
+	/**
+	 * Returns <code>true</code> if single letters
+	 * should be ignored during spell checking.
+	 */
+	public static boolean isIgnoreSingleLetters() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_SINGLE_LETTERS);
+	}
+	
+	/**
+	 * Returns <code>true</code> if string literals
+	 * should be ignored during spell checking.
+	 */
+	public static boolean isIgnoreStringLiterals() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_STRING_LITERALS);
+	}
+
+	/**
+	 * Returns <code>true</code> if upper case words should be
+	 * skipped during spell checking.
+	 */
+	public static boolean isIgnoreUpper() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_UPPER);
+	}
+
+	/**
+	 * Returns <code>true</code> if URLs should be ignored during
+	 * spell checking.
+	 */
+	public static boolean isIgnoreUrls() {
+		return preferenceStore.getBoolean(SPELLING_IGNORE_URLS);
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/TaskTagDictionary.java

@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.net.URL;
+import java.util.StringTokenizer;
+
+import org.eclipse.core.runtime.Plugin;
+import org.eclipse.core.runtime.Preferences.IPropertyChangeListener;
+import org.eclipse.core.runtime.Preferences.PropertyChangeEvent;
+
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.CCorePreferenceConstants;
+
+import org.eclipse.cdt.internal.ui.text.spelling.engine.AbstractSpellDictionary;
+
+/**
+ * Dictionary for task tags.
+ */
+public class TaskTagDictionary extends AbstractSpellDictionary implements IPropertyChangeListener {
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.AbstractSpellDictionary#getName()
+	 */
+	protected final URL getURL() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.AbstractSpellDictionary#load(java.net.URL)
+	 */
+	protected synchronized boolean load(final URL url) {
+		final Plugin plugin= CCorePlugin.getDefault();
+		if (plugin != null) {
+			plugin.getPluginPreferences().addPropertyChangeListener(this);
+			return updateTaskTags();
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.core.runtime.Preferences.IPropertyChangeListener#propertyChange(org.eclipse.core.runtime.Preferences.PropertyChangeEvent)
+	 */
+	public void propertyChange(final PropertyChangeEvent event) {
+		if (CCorePreferenceConstants.TODO_TASK_TAGS.equals(event.getProperty()))
+			updateTaskTags();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellDictionary#unload()
+	 */
+	public synchronized void unload() {
+		final Plugin plugin= CCorePlugin.getDefault();
+		if (plugin != null)
+			plugin.getPluginPreferences().removePropertyChangeListener(this);
+
+		super.unload();
+	}
+
+	/**
+	 * Handles the compiler task tags property change event.
+	 * 
+	 * @return  <code>true</code> if the task tags got updated
+	 */
+	protected boolean updateTaskTags() {
+		final String tags= CCorePlugin.getOption(CCorePreferenceConstants.TODO_TASK_TAGS);
+		if (tags != null) {
+			unload();
+
+			final StringTokenizer tokenizer= new StringTokenizer(tags, ","); //$NON-NLS-1$
+			while (tokenizer.hasMoreTokens())
+				hashWord(tokenizer.nextToken());
+
+			return true;
+		}
+		return false;
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.AbstractSpellDictionary#stripNonLetters(java.lang.String)
+	 */
+	protected String stripNonLetters(String word) {
+		return word;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/TextSpellingEngine.java

@@ -0,0 +1,45 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * 	   Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+
+import org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector;
+
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEventListener;
+
+/**
+ * Text spelling engine
+ */
+public class TextSpellingEngine extends SpellingEngine {
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.SpellingEngine#check(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.IRegion[], org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker, org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	protected void check(IDocument document, IRegion[] regions, ISpellChecker checker, ISpellingProblemCollector collector, IProgressMonitor monitor) {
+		ISpellEventListener listener= new SpellEventListener(collector, document);
+		try {
+			checker.addListener(listener);
+			for (int i= 0; i < regions.length; i++) {
+				if (monitor != null && monitor.isCanceled())
+					return;
+				checker.execute(new SpellCheckIterator(document, regions[i], checker.getLocale()));
+			}
+		} finally {
+			checker.removeListener(listener);
+		}
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/WordCompletionProposalComputer.java

@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.DocumentEvent;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.text.contentassist.ContentAssistInvocationContext;
+import org.eclipse.cdt.ui.text.contentassist.ICompletionProposalComputer;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.text.contentassist.CCompletionProposal;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.RankedWordProposal;
+
+/**
+ * Content assist processor to complete words.
+ * <strong>Note:</strong> This is currently not supported because the spelling engine
+ * cannot return word proposals but only correction proposals.
+ */
+public final class WordCompletionProposalComputer implements ICompletionProposalComputer {
+	/** The prefix rank shift */
+	private static final int PREFIX_RANK_SHIFT= 500;
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#computeCompletionProposals(org.eclipse.jface.text.contentassist.TextContentAssistInvocationContext, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public List computeCompletionProposals(ContentAssistInvocationContext context, IProgressMonitor monitor) {
+		if (contributes()) {
+			try {
+				IDocument document= context.getDocument();
+				final int offset= context.getInvocationOffset();
+			
+				final IRegion region= document.getLineInformationOfOffset(offset);
+				final String content= document.get(region.getOffset(), region.getLength());
+			
+				int index= offset - region.getOffset() - 1;
+				while (index >= 0 && Character.isLetter(content.charAt(index)))
+					index--;
+			
+				final int start= region.getOffset() + index + 1;
+				final String candidate= content.substring(index + 1, offset - region.getOffset());
+			
+				if (candidate.length() > 0) {
+					final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
+					final ISpellChecker checker= engine.getSpellChecker();
+			
+					if (checker != null) {
+						final List proposals= new ArrayList(checker.getProposals(candidate, Character.isUpperCase(candidate.charAt(0))));
+						final List result= new ArrayList(proposals.size());
+			
+						for (Iterator it= proposals.iterator(); it.hasNext();) {
+							RankedWordProposal word= (RankedWordProposal) it.next();
+							String text= word.getText();
+							if (text.startsWith(candidate))
+								word.setRank(word.getRank() + PREFIX_RANK_SHIFT);
+							
+							result.add(new CCompletionProposal(text, start, candidate.length(),
+									CPluginImages.get(CPluginImages.IMG_CORRECTION_RENAME), text, word.getRank()) {
+								/*
+								 * @see org.eclipse.cdt.internal.ui.text.java.JavaCompletionProposal#validate(org.eclipse.jface.text.IDocument, int, org.eclipse.jface.text.DocumentEvent)
+								 */
+								public boolean validate(IDocument doc, int validate_offset, DocumentEvent event) {
+									return offset == validate_offset;
+								}
+							});
+						}
+						
+						return result;
+					}
+				}
+			} catch (BadLocationException exception) {
+				// log & ignore
+				CUIPlugin.getDefault().log(exception);
+			}
+		}
+		return Collections.EMPTY_LIST;
+	}
+
+	private boolean contributes() {
+		return SpellingPreferences.isEnabledSpellingContentAssist();
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#computeContextInformation(org.eclipse.jface.text.contentassist.TextContentAssistInvocationContext, org.eclipse.core.runtime.IProgressMonitor)
+	 */
+	public List computeContextInformation(ContentAssistInvocationContext context, IProgressMonitor monitor) {
+		return Collections.EMPTY_LIST;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#getErrorMessage()
+	 */
+	public String getErrorMessage() {
+		return null; // no error message available
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposalComputer#sessionStarted()
+	 */
+	public void sessionStarted() {
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposalComputer#sessionEnded()
+	 */
+	public void sessionEnded() {
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/WordCorrectionProposal.java

@@ -0,0 +1,172 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.text.IHtmlTagConstants;
+
+/**
+ * Proposal to correct the incorrectly spelled word.
+ */
+public class WordCorrectionProposal implements ICCompletionProposal {
+	/** The invocation context */
+	private final IInvocationContext fContext;
+
+	/** The length in the document */
+	private final int fLength;
+
+	/** The line where to apply the correction */
+	private final String fLine;
+
+	/** The offset in the document */
+	private final int fOffset;
+
+	/** The relevance of this proposal */
+	private final int fRelevance;
+
+	/** The word to complete */
+	private final String fWord;
+
+	/**
+	 * Creates a new word correction proposal.
+	 *
+	 * @param word the corrected word
+	 * @param arguments the problem arguments associated with the spelling problem
+	 * @param offset the offset in the document where to apply the proposal
+	 * @param length the length in the document to apply the proposal
+	 * @param context the invocation context for this proposal
+	 * @param relevance the relevance of this proposal
+	 */
+	public WordCorrectionProposal(final String word, final String[] arguments, final int offset,
+			final int length, final IInvocationContext context, final int relevance) {
+		fWord= Character.isUpperCase(arguments[0].charAt(0)) ?
+				Character.toUpperCase(word.charAt(0)) + word.substring(1) : word;
+
+		fOffset= offset;
+		fLength= length;
+		fContext= context;
+		fRelevance= relevance;
+
+		final StringBuffer buffer= new StringBuffer(80);
+
+		buffer.append("...<br>"); //$NON-NLS-1$
+		buffer.append(getHtmlRepresentation(arguments[1]));
+		buffer.append("<b>"); //$NON-NLS-1$
+		buffer.append(getHtmlRepresentation(fWord));
+		buffer.append("</b>"); //$NON-NLS-1$
+		buffer.append(getHtmlRepresentation(arguments[2]));
+		buffer.append("<br>..."); //$NON-NLS-1$
+
+		fLine= buffer.toString();
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
+	 */
+	public final void apply(final IDocument document) {
+		try {
+			document.replace(fOffset, fLength, fWord);
+		} catch (BadLocationException exception) {
+			// Do nothing
+		}
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
+	 */
+	public String getAdditionalProposalInfo() {
+		return fLine;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
+	 */
+	public final IContextInformation getContextInformation() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return Messages.bind(Messages.Spelling_correct_label, fWord);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
+	 */
+	public Image getImage() {
+		return CPluginImages.get(CPluginImages.IMG_CORRECTION_RENAME);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposal#getRelevance()
+	 */
+	public final int getRelevance() {
+		return fRelevance;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
+	 */
+	public final Point getSelection(final IDocument document) {
+		int offset= fContext.getSelectionOffset();
+		int length= fContext.getSelectionLength();
+
+		final int delta= fWord.length() - fLength;
+		if (offset <= fOffset && offset + length >= fOffset) {
+			length += delta;
+		} else if (offset > fOffset && offset + length > fOffset + fLength) {
+			offset += delta;
+			length -= delta;
+		} else {
+			length += delta;
+		}
+
+		return new Point(offset, length);
+	}
+	
+	/**
+	 * Returns the html representation of the specified string.
+	 *
+	 * @param string The string to return the html representation for
+	 * @return The html representation for the string
+	 */
+	public static String getHtmlRepresentation(final String string) {
+		final int length= string.length();
+		final StringBuffer buffer= new StringBuffer(string);
+
+		for (int offset= length - 1; offset >= 0; offset--) {
+			for (int index= 0; index < IHtmlTagConstants.HTML_ENTITY_CHARACTERS.length; index++) {
+				if (string.charAt(offset) == IHtmlTagConstants.HTML_ENTITY_CHARACTERS[index]) {
+					buffer.replace(offset, offset + 1, String.valueOf(IHtmlTagConstants.HTML_ENTITY_CODES[index]));
+					break;
+				}
+			}
+		}
+		return buffer.toString();
+	}
+
+	public String getIdString() {
+		return fWord;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/WordIgnoreProposal.java

@@ -0,0 +1,116 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.jface.text.quickassist.IQuickAssistInvocationContext;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.texteditor.ITextEditor;
+import org.eclipse.ui.texteditor.spelling.SpellingProblem;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+
+import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+
+/**
+ * Proposal to ignore the word during the current editing session.
+ */
+public class WordIgnoreProposal implements ICCompletionProposal {
+	/** The invocation context */
+	private IInvocationContext fContext;
+
+	/** The word to ignore */
+	private String fWord;
+
+	/**
+	 * Creates a new spell ignore proposal.
+	 *
+	 * @param word       The word to ignore
+	 * @param context    The invocation context
+	 */
+	public WordIgnoreProposal(final String word, final IInvocationContext context) {
+		fWord= word;
+		fContext= context;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
+	 */
+	public final void apply(final IDocument document) {
+        final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
+        final ISpellChecker checker= engine.getSpellChecker();
+        if (checker != null) {
+            checker.ignoreWord(fWord);
+            if (fContext instanceof IQuickAssistInvocationContext) {
+                ISourceViewer sourceViewer= ((IQuickAssistInvocationContext) fContext).getSourceViewer();
+                if (sourceViewer != null) {
+                    SpellingProblem.removeAll(sourceViewer, fWord);
+                }
+            }
+        }
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
+	 */
+	public String getAdditionalProposalInfo() {
+		return Messages.bind(Messages.Spelling_ignore_info, WordCorrectionProposal.getHtmlRepresentation(fWord));
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
+	 */
+	public final IContextInformation getContextInformation() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
+	 */
+	public String getDisplayString() {
+		return Messages.bind(Messages.Spelling_ignore_label, fWord);
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
+	 */
+	public Image getImage() {
+		return CPluginImages.get(CPluginImages.IMG_OBJS_NLS_NEVER_TRANSLATE);
+	}
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IJavaCompletionProposal#getRelevance()
+	 */
+	public final int getRelevance() {
+		return Integer.MIN_VALUE + 1;
+	}
+
+	/*
+	 * @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
+	 */
+	public final Point getSelection(final IDocument document) {
+		return new Point(fContext.getSelectionOffset(), fContext.getSelectionLength());
+	}
+
+	public String getIdString() {
+		return fWord;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/WordQuickFixProcessor.java

@@ -0,0 +1,113 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+import org.eclipse.cdt.ui.text.ICCompletionProposal;
+import org.eclipse.cdt.ui.text.IInvocationContext;
+import org.eclipse.cdt.ui.text.IProblemLocation;
+import org.eclipse.cdt.ui.text.IQuickFixProcessor;
+
+import org.eclipse.cdt.internal.ui.text.IHtmlTagConstants;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker;
+import org.eclipse.cdt.internal.ui.text.spelling.engine.RankedWordProposal;
+
+/**
+ * Quick fix processor for incorrectly spelled words.
+ */
+public class WordQuickFixProcessor implements IQuickFixProcessor {
+	/**
+	 * Creates a new word quick fix processor.
+	 */
+	public WordQuickFixProcessor() {
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IQuickFixProcessor#getCorrections(org.eclipse.cdt.ui.text.java.ContentAssistInvocationContext,org.eclipse.cdt.ui.text.java.IProblemLocation[])
+	 */
+	public ICCompletionProposal[] getCorrections(IInvocationContext context, IProblemLocation[] locations) throws CoreException {
+		final int threshold= SpellingPreferences.spellingProposalThreshold();
+
+		int size= 0;
+		List proposals= null;
+		String[] arguments= null;
+
+		IProblemLocation location= null;
+		RankedWordProposal proposal= null;
+		ICCompletionProposal[] result= null;
+
+		boolean fixed= false;
+		boolean match= false;
+		boolean sentence= false;
+
+		final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
+		final ISpellChecker checker= engine.getSpellChecker();
+
+		if (checker != null) {
+			for (int index= 0; index < locations.length; index++) {
+				location= locations[index];
+				if (location.getProblemId() == CSpellingReconcileStrategy.SPELLING_PROBLEM_ID) {
+					arguments= location.getProblemArguments();
+					if (arguments != null && arguments.length > 4) {
+						sentence= Boolean.valueOf(arguments[3]).booleanValue();
+						match= Boolean.valueOf(arguments[4]).booleanValue();
+						fixed= arguments[0].charAt(0) == IHtmlTagConstants.HTML_TAG_PREFIX;
+
+						if ((sentence && match) && !fixed) {
+							result= new ICCompletionProposal[] { new ChangeCaseProposal(arguments, location.getOffset(), location.getLength(), context, engine.getLocale())};
+						} else {
+							proposals= new ArrayList(checker.getProposals(arguments[0], sentence));
+							size= proposals.size();
+
+							if (threshold > 0 && size > threshold) {
+								Collections.sort(proposals);
+								proposals= proposals.subList(size - threshold - 1, size - 1);
+								size= proposals.size();
+							}
+
+							boolean extendable= !fixed ? (checker.acceptsWords() || AddWordProposal.canAskToConfigure()) : false;
+							result= new ICCompletionProposal[size + (extendable ? 3 : 2)];
+
+							for (index= 0; index < size; index++) {
+								proposal= (RankedWordProposal)proposals.get(index);
+								result[index]= new WordCorrectionProposal(proposal.getText(), arguments, location.getOffset(), location.getLength(), context, proposal.getRank());
+							}
+
+							if (extendable)
+								result[index++]= new AddWordProposal(arguments[0], context);
+
+							result[index++]= new WordIgnoreProposal(arguments[0], context);
+							result[index++]= new DisableSpellCheckingProposal(context);
+						}
+						break;
+					}
+				}
+			}
+		}
+		return result;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.java.IQuickFixProcessor#hasCorrections(org.eclipse.cdt.core.ICompilationUnit,int)
+	 */
+	public final boolean hasCorrections(ITranslationUnit unit, int id) {
+		return id == CSpellingReconcileStrategy.SPELLING_PROBLEM_ID;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/AbstractSpellDictionary.java

@@ -0,0 +1,608 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.nio.charset.CodingErrorAction;
+import java.nio.charset.MalformedInputException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.ui.text.spelling.Messages;
+import org.eclipse.cdt.internal.ui.text.spelling.SpellingPreferences;
+
+/**
+ * Partial implementation of a spell dictionary.
+ */
+public abstract class AbstractSpellDictionary implements ISpellDictionary {
+	/** The bucket capacity */
+	protected static final int BUCKET_CAPACITY= 4;
+
+	/** The word buffer capacity */
+	protected static final int BUFFER_CAPACITY= 32;
+
+	/** The distance threshold */
+	protected static final int DISTANCE_THRESHOLD= 160;
+
+	/** The hash capacity */
+	protected static final int HASH_CAPACITY= 22 * 1024;
+
+	/** The phonetic distance algorithm */
+	private IPhoneticDistanceAlgorithm fDistanceAlgorithm= new DefaultPhoneticDistanceAlgorithm();
+
+	/** The mapping from phonetic hashes to word lists */
+	private final Map fHashBuckets= new HashMap(HASH_CAPACITY);
+
+	/** The phonetic hash provider */
+	private IPhoneticHashProvider fHashProvider= new DefaultPhoneticHashProvider();
+
+	/** Is the dictionary already loaded? */
+	private boolean fLoaded= false;
+	/**
+	 * Must the dictionary be loaded?
+	 */
+	private boolean fMustLoad= true;
+
+	/**
+	 * Tells whether to strip non-letters at word boundaries.
+	 */
+	boolean fIsStrippingNonLetters= true;
+
+	/**
+	 * Returns all candidates with the same phonetic hash.
+	 *
+	 * @param hash
+	 *                   The hash to retrieve the candidates of
+	 * @return Array of candidates for the phonetic hash
+	 */
+	protected final Object getCandidates(final String hash) {
+		return fHashBuckets.get(hash);
+	}
+
+	/**
+	 * Returns all candidates that have a phonetic hash within a bounded
+	 * distance to the specified word.
+	 *
+	 * @param word
+	 *                   The word to find the nearest matches for
+	 * @param sentence
+	 *                   <code>true</code> iff the proposals start a new sentence,
+	 *                   <code>false</code> otherwise
+	 * @param hashs
+	 *                   Array of close hashes to find the matches
+	 * @return Set of ranked words with bounded distance to the specified word
+	 */
+	protected final Set getCandidates(final String word, final boolean sentence, final ArrayList hashs) {
+
+		int distance= 0;
+		String hash= null;
+
+		final StringBuffer buffer= new StringBuffer(BUFFER_CAPACITY);
+		final HashSet result= new HashSet(BUCKET_CAPACITY * hashs.size());
+
+		for (int index= 0; index < hashs.size(); index++) {
+
+			hash= (String)hashs.get(index);
+
+			final Object candidates= getCandidates(hash);
+			if (candidates == null)
+				continue;
+			else if (candidates instanceof String) {
+				String candidate= (String)candidates;
+				distance= fDistanceAlgorithm.getDistance(word, candidate);
+				if (distance < DISTANCE_THRESHOLD) {
+					buffer.setLength(0);
+					buffer.append(candidate);
+					if (sentence)
+						buffer.setCharAt(0, Character.toUpperCase(buffer.charAt(0)));
+					result.add(new RankedWordProposal(buffer.toString(), -distance));
+				}
+				continue;
+			}
+
+			final ArrayList candidateList= (ArrayList)candidates;
+			for (int offset= 0; offset < candidateList.size(); offset++) {
+
+				String candidate= (String)candidateList.get(offset);
+				distance= fDistanceAlgorithm.getDistance(word, candidate);
+
+				if (distance < DISTANCE_THRESHOLD) {
+
+					buffer.setLength(0);
+					buffer.append(candidate);
+
+					if (sentence)
+						buffer.setCharAt(0, Character.toUpperCase(buffer.charAt(0)));
+
+					result.add(new RankedWordProposal(buffer.toString(), -distance));
+				}
+			}
+		}
+		return result;
+	}
+
+	/**
+	 * Returns all approximations that have a phonetic hash with smallest
+	 * possible distance to the specified word.
+	 *
+	 * @param word
+	 *                   The word to find the nearest matches for
+	 * @param sentence
+	 *                   <code>true</code> iff the proposals start a new sentence,
+	 *                   <code>false</code> otherwise
+	 * @param result
+	 *                   Set of ranked words with smallest possible distance to the
+	 *                   specified word
+	 */
+	protected final void getCandidates(final String word, final boolean sentence, final Set result) {
+
+		int distance= 0;
+		int minimum= Integer.MAX_VALUE;
+
+		StringBuffer buffer= new StringBuffer(BUFFER_CAPACITY);
+
+		final Object candidates= getCandidates(fHashProvider.getHash(word));
+		if (candidates == null)
+			return;
+		else if (candidates instanceof String) {
+			String candidate= (String)candidates;
+			distance= fDistanceAlgorithm.getDistance(word, candidate);
+			buffer.append(candidate);
+			if (sentence)
+				buffer.setCharAt(0, Character.toUpperCase(buffer.charAt(0)));
+			result.add(new RankedWordProposal(buffer.toString(), -distance));
+			return;
+		}
+
+		final ArrayList candidateList= (ArrayList)candidates;
+		final ArrayList matches= new ArrayList(candidateList.size());
+
+		for (int index= 0; index < candidateList.size(); index++) {
+			String candidate= (String)candidateList.get(index);
+			distance= fDistanceAlgorithm.getDistance(word, candidate);
+
+			if (distance <= minimum) {
+				
+				if (distance < minimum)
+					matches.clear();
+
+				buffer.setLength(0);
+				buffer.append(candidate);
+
+				if (sentence)
+					buffer.setCharAt(0, Character.toUpperCase(buffer.charAt(0)));
+
+				matches.add(new RankedWordProposal(buffer.toString(), -distance));
+				minimum= distance;
+			}
+		}
+
+		result.addAll(matches);
+	}
+	
+	/**
+	 * Tells whether this dictionary is empty.
+	 * 
+	 * @return <code>true</code> if this dictionary is empty
+	 */
+	protected boolean isEmpty() {
+		return fHashBuckets.size() == 0;
+	}
+
+	/**
+	 * Returns the used phonetic distance algorithm.
+	 *
+	 * @return The phonetic distance algorithm
+	 */
+	protected final IPhoneticDistanceAlgorithm getDistanceAlgorithm() {
+		return fDistanceAlgorithm;
+	}
+
+	/**
+	 * Returns the used phonetic hash provider.
+	 *
+	 * @return The phonetic hash provider
+	 */
+	protected final IPhoneticHashProvider getHashProvider() {
+		return fHashProvider;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary#getProposals(java.lang.String,boolean)
+	 */
+	public Set getProposals(final String word, final boolean sentence) {
+
+		try {
+
+			if (!fLoaded) {
+				synchronized (this) {
+					fLoaded= load(getURL());
+					if (fLoaded)
+						compact();
+				}
+			}
+
+		} catch (MalformedURLException exception) {
+			// Do nothing
+		}
+
+		final String hash= fHashProvider.getHash(word);
+		final char[] mutators= fHashProvider.getMutators();
+
+		final ArrayList neighborhood= new ArrayList((word.length() + 1) * (mutators.length + 2));
+		neighborhood.add(hash);
+
+		final Set candidates= getCandidates(word, sentence, neighborhood);
+		neighborhood.clear();
+
+		char previous= 0;
+		char next= 0;
+
+		char[] characters= word.toCharArray();
+		for (int index= 0; index < word.length() - 1; index++) {
+
+			next= characters[index];
+			previous= characters[index + 1];
+
+			characters[index]= previous;
+			characters[index + 1]= next;
+
+			neighborhood.add(fHashProvider.getHash(new String(characters)));
+
+			characters[index]= next;
+			characters[index + 1]= previous;
+		}
+
+		final String sentinel= word + " "; //$NON-NLS-1$
+
+		characters= sentinel.toCharArray();
+		int offset= characters.length - 1;
+
+		while (true) {
+
+			for (int index= 0; index < mutators.length; index++) {
+
+				characters[offset]= mutators[index];
+				neighborhood.add(fHashProvider.getHash(new String(characters)));
+			}
+
+			if (offset == 0)
+				break;
+
+			characters[offset]= characters[offset - 1];
+			--offset;
+		}
+
+		char mutated= 0;
+		characters= word.toCharArray();
+
+		for (int index= 0; index < word.length(); index++) {
+
+			mutated= characters[index];
+			for (int mutator= 0; mutator < mutators.length; mutator++) {
+
+				characters[index]= mutators[mutator];
+				neighborhood.add(fHashProvider.getHash(new String(characters)));
+			}
+			characters[index]= mutated;
+		}
+
+		characters= word.toCharArray();
+		final char[] deleted= new char[characters.length - 1];
+
+		for (int index= 0; index < deleted.length; index++)
+			deleted[index]= characters[index];
+
+		next= characters[characters.length - 1];
+		offset= deleted.length;
+
+		while (true) {
+
+			neighborhood.add(fHashProvider.getHash(new String(characters)));
+			if (offset == 0)
+				break;
+
+			previous= next;
+			next= deleted[offset - 1];
+
+			deleted[offset - 1]= previous;
+			--offset;
+		}
+
+		neighborhood.remove(hash);
+		final Set matches= getCandidates(word, sentence, neighborhood);
+
+		if (matches.size() == 0 && candidates.size() == 0)
+			getCandidates(word, sentence, candidates);
+
+		candidates.addAll(matches);
+
+		return candidates;
+	}
+
+	/**
+	 * Returns the URL of the dictionary word list.
+	 *
+	 * @throws MalformedURLException
+	 *                    if the URL could not be retrieved
+	 * @return The URL of the dictionary word list
+	 */
+	protected abstract URL getURL() throws MalformedURLException;
+
+	/**
+	 * Hashes the word into the dictionary.
+	 *
+	 * @param word
+	 *                   The word to hash in the dictionary
+	 */
+	protected final void hashWord(final String word) {
+
+		final String hash= fHashProvider.getHash(word);
+		Object bucket= fHashBuckets.get(hash);
+
+		if (bucket == null) {
+			fHashBuckets.put(hash, word);
+		} else if (bucket instanceof ArrayList) {
+			((ArrayList)bucket).add(word);
+		} else {
+			ArrayList list= new ArrayList(BUCKET_CAPACITY);
+			list.add(bucket);
+			list.add(word);
+			fHashBuckets.put(hash, list);
+		}
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary#isCorrect(java.lang.String)
+	 */
+	public boolean isCorrect(String word) {
+		word= stripNonLetters(word);
+		try {
+			
+			if (!fLoaded) {
+				synchronized (this) {
+					fLoaded= load(getURL());
+					if (fLoaded)
+						compact();
+				}
+			}
+
+		} catch (MalformedURLException exception) {
+			// Do nothing
+		}
+
+		final Object candidates= getCandidates(fHashProvider.getHash(word));
+		if (candidates == null)
+			return false;
+		else if (candidates instanceof String) {
+			String candidate= (String)candidates;
+			if (candidate.equals(word) || candidate.equals(word.toLowerCase()))
+				return true;
+			return false;
+		}
+		final ArrayList candidateList= (ArrayList)candidates;
+		if (candidateList.contains(word) || candidateList.contains(word.toLowerCase()))
+			return true;
+
+		return false;
+	}
+	
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary#setStripNonLetters(boolean)
+	 */
+	public void setStripNonLetters(boolean state) {
+		fIsStrippingNonLetters= state;
+	}
+	
+	/**
+	 * Strips non-letter characters from the given word.
+	 * <p>
+	 * This will only happen if the corresponding preference is enabled.
+	 * </p>
+	 * 
+	 * @param word the word to strip
+	 * @return the stripped word
+	 */
+	protected String stripNonLetters(String word) {
+		if (!fIsStrippingNonLetters)
+			return word;
+		
+		int i= 0;
+		int j= word.length() - 1;
+		while (i <= j && !Character.isLetter(word.charAt(i)))
+			i++;
+		if (i > j)
+			return ""; //$NON-NLS-1$
+		
+		while (j > i && !Character.isLetter(word.charAt(j)))
+			j--;
+		
+		return word.substring(i, j+1);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellDictionary#isLoaded()
+	 */
+	public final synchronized boolean isLoaded() {
+		return fLoaded || fHashBuckets.size() > 0;
+	}
+
+	/**
+	 * Loads a dictionary word list from disk.
+	 *
+	 * @param url
+	 *                   The URL of the word list to load
+	 * @return <code>true</code> iff the word list could be loaded, <code>false</code>
+	 *               otherwise
+	 */
+	protected synchronized boolean load(final URL url) {
+		 if (!fMustLoad)
+			 return fLoaded;
+
+		if (url != null) {
+			InputStream stream= null;
+			int line= 0;
+			try {
+				stream= url.openStream();
+				if (stream != null) {
+					String word= null;
+					
+					// Setup a reader with a decoder in order to read over malformed input if needed.
+					CharsetDecoder decoder= Charset.forName(getEncoding()).newDecoder();
+					decoder.onMalformedInput(CodingErrorAction.REPORT);
+					decoder.onUnmappableCharacter(CodingErrorAction.REPORT);
+					final BufferedReader reader= new BufferedReader(new InputStreamReader(stream, decoder));
+					
+					boolean doRead= true;
+					while (doRead) {
+						try {
+							word= reader.readLine();
+						} catch (MalformedInputException ex) {
+							// Tell the decoder to replace malformed input in order to read the line.
+							decoder.onMalformedInput(CodingErrorAction.REPLACE);
+							decoder.reset();
+							word= reader.readLine();
+							decoder.onMalformedInput(CodingErrorAction.REPORT);
+							
+							String message= Messages.bind(Messages.AbstractSpellingDictionary_encodingError,
+									new String[] { word, decoder.replacement(), url.toString() });
+							IStatus status= new Status(IStatus.ERROR, CUIPlugin.PLUGIN_ID, IStatus.OK, message, ex);
+							CUIPlugin.getDefault().log(status);
+							
+							doRead= word != null;
+							continue;
+						}
+						doRead= word != null;
+						if (doRead)
+							hashWord(word);
+					}
+					return true;
+				}
+			} catch (FileNotFoundException e) {
+				String urlString= url.toString();
+				String lowercaseUrlString= urlString.toLowerCase();
+				if (urlString.equals(lowercaseUrlString)) {
+					CUIPlugin.getDefault().log(e);
+				} else {
+					try {
+						return load(new URL(lowercaseUrlString));
+					} catch (MalformedURLException ex) {
+						CUIPlugin.getDefault().log(ex);
+					}
+				}
+			} catch (IOException exception) {
+				if (line > 0) {
+					String message= Messages.bind(Messages.AbstractSpellingDictionary_encodingError,
+							String.valueOf(line), url.toString());
+					IStatus status= new Status(IStatus.ERROR, CUIPlugin.PLUGIN_ID, IStatus.OK, message, exception);
+					CUIPlugin.getDefault().log(status);
+				} else {
+					CUIPlugin.getDefault().log(exception);
+				}
+			} finally {
+				fMustLoad= false;
+				try {
+					if (stream != null)
+						stream.close();
+				} catch (IOException x) {
+				}
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Compacts the dictionary.
+	 */
+	private void compact() {
+		Iterator iter= fHashBuckets.values().iterator();
+		while (iter.hasNext()) {
+			Object element= iter.next();
+			if (element instanceof ArrayList)
+				((ArrayList)element).trimToSize();
+		}
+	}
+
+	/**
+	 * Sets the phonetic distance algorithm to use.
+	 *
+	 * @param algorithm
+	 *                   The phonetic distance algorithm
+	 */
+	protected final void setDistanceAlgorithm(final IPhoneticDistanceAlgorithm algorithm) {
+		fDistanceAlgorithm= algorithm;
+	}
+
+	/**
+	 * Sets the phonetic hash provider to use.
+	 *
+	 * @param provider
+	 *                   The phonetic hash provider
+	 */
+	protected final void setHashProvider(final IPhoneticHashProvider provider) {
+		fHashProvider= provider;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellDictionary#unload()
+	 */
+	public synchronized void unload() {
+		fLoaded= false;
+		fMustLoad= true;
+		fHashBuckets.clear();
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellDictionary#acceptsWords()
+	 */
+	public boolean acceptsWords() {
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary#addWord(java.lang.String)
+	 */
+	public void addWord(final String word) {
+		// Do nothing
+	}
+	
+	/**
+	 * Returns the encoding of this dictionary.
+	 * 
+	 * @return the encoding of this dictionary
+	 */
+	protected String getEncoding() {
+		String encoding= SpellingPreferences.getSpellingUserDictionaryEncoding();
+		if (encoding == null || encoding.length() == 0)
+			encoding= ResourcesPlugin.getEncoding();
+		return encoding;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/DefaultPhoneticDistanceAlgorithm.java

@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Default phonetic distance algorithm for English words.
+ * <p>
+ * This algorithm implements the Levenshtein text edit distance.
+ * </p>
+ */
+public final class DefaultPhoneticDistanceAlgorithm implements IPhoneticDistanceAlgorithm {
+
+	/** The change case cost */
+	public static final int COST_CASE= 10;
+
+	/** The insert character cost */
+	public static final int COST_INSERT= 95;
+
+	/** The remove character cost */
+	public static final int COST_REMOVE= 95;
+
+	/** The substitute characters cost */
+	public static final int COST_SUBSTITUTE= 100;
+
+	/** The swap characters cost */
+	public static final int COST_SWAP= 90;
+
+	/*
+	 * @see org.eclipse.spelling.done.IPhoneticDistanceAlgorithm#getDistance(java.lang.String,java.lang.String)
+	 */
+	public final int getDistance(final String from, final String to) {
+
+		final char[] first= (" " + from).toCharArray(); //$NON-NLS-1$
+		final char[] second= (" " + to).toCharArray(); //$NON-NLS-1$
+
+		final int rows= first.length;
+		final int columns= second.length;
+
+		final int[][] metric= new int[rows][columns];
+		for (int column= 1; column < columns; column++)
+			metric[0][column]= metric[0][column - 1] + COST_REMOVE;
+
+		for (int row= 1; row < rows; row++)
+			metric[row][0]= metric[row - 1][0] + COST_INSERT;
+
+		char source, target;
+
+		int swap= Integer.MAX_VALUE;
+		int change= Integer.MAX_VALUE;
+
+		int minimum, diagonal, insert, remove;
+		for (int row= 1; row < rows; row++) {
+
+			source= first[row];
+			for (int column= 1; column < columns; column++) {
+
+				target= second[column];
+				diagonal= metric[row - 1][column - 1];
+
+				if (source == target) {
+					metric[row][column]= diagonal;
+					continue;
+				}
+
+				change= Integer.MAX_VALUE;
+				if (Character.toLowerCase(source) == Character.toLowerCase(target))
+					change= COST_CASE + diagonal;
+
+				swap= Integer.MAX_VALUE;
+				if (row != 1 && column != 1 && source == second[column - 1] && first[row - 1] == target)
+					swap= COST_SWAP + metric[row - 2][column - 2];
+
+				minimum= COST_SUBSTITUTE + diagonal;
+				if (swap < minimum)
+					minimum= swap;
+
+				remove= metric[row][column - 1];
+				if (COST_REMOVE + remove < minimum)
+					minimum= COST_REMOVE + remove;
+
+				insert= metric[row - 1][column];
+				if (COST_INSERT + insert < minimum)
+					minimum= COST_INSERT + insert;
+				if (change < minimum)
+					minimum= change;
+
+				metric[row][column]= minimum;
+			}
+		}
+		return metric[rows - 1][columns - 1];
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/DefaultPhoneticHashProvider.java

@@ -0,0 +1,674 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Default phonetic hash provider for english languages.
+ * <p>
+ * This algorithm uses an adapted version double metaphone algorithm by
+ * Lawrence Philips.
+ * <p>
+ */
+public final class DefaultPhoneticHashProvider implements IPhoneticHashProvider {
+	private static final String[] meta01= { "ACH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta02= { "BACHER", "MACHER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta03= { "CAESAR", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta04= { "CHIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta05= { "CH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta06= { "CHAE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta07= { "HARAC", "HARIS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta08= { "HOR", "HYM", "HIA", "HEM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
+	private static final String[] meta09= { "CHORE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta10= { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta11= { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta12= { "ORCHES", "ARCHIT", "ORCHID", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta13= { "T", "S", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta14= { "A", "O", "U", "E", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
+	private static final String[] meta15= { "L", "R", "N", "M", "B", "H", "F", "V", "W", " ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$
+	private static final String[] meta16= { "MC", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta17= { "CZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta18= { "WICZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta19= { "CIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta20= { "CC", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta21= { "I", "E", "H", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta22= { "HU", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta23= { "UCCEE", "UCCES", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta24= { "CK", "CG", "CQ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta25= { "CI", "CE", "CY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta26= { "GN", "KN", "PN", "WR", "PS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
+	private static final String[] meta27= { " C", " Q", " G", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta28= { "C", "K", "Q", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta29= { "CE", "CI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta30= { "DG", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta31= { "I", "E", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta32= { "DT", "DD", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta33= { "B", "H", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta34= { "B", "H", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta35= { "B", "H", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta36= { "C", "G", "L", "R", "T", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
+	private static final String[] meta37= { "EY", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta38= { "LI", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta39= { "ES", "EP", "EB", "EL", "EY", "IB", "IL", "IN", "IE", "EI", "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$ //$NON-NLS-12$
+	private static final String[] meta40= { "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta41= { "DANGER", "RANGER", "MANGER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta42= { "E", "I", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta43= { "RGY", "OGY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta44= { "E", "I", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta45= { "AGGI", "OGGI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta46= { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta47= { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta48= { "ET", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta49= { "C", "X", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta50= { "JOSE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta51= { "SAN ", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta52= { "SAN ", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta53= { "JOSE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta54= { "L", "T", "K", "S", "N", "M", "B", "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$
+	private static final String[] meta55= { "S", "K", "L", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta56= { "ILLO", "ILLA", "ALLE", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta57= { "AS", "OS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta58= { "A", "O", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta59= { "ALLE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta60= { "UMB", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta61= { "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta62= { "P", "B", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta63= { "IE", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta64= { "ME", "MA", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta65= { "ISL", "YSL", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta66= { "SUGAR", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta67= { "SH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta68= { "HEIM", "HOEK", "HOLM", "HOLZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
+	private static final String[] meta69= { "SIO", "SIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta70= { "SIAN", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta71= { "M", "N", "L", "W", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
+	private static final String[] meta72= { "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta73= { "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta74= { "SC", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta75= { "OO", "ER", "EN", "UY", "ED", "EM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
+	private static final String[] meta76= { "ER", "EN", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta77= { "I", "E", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+	private static final String[] meta78= { "AI", "OI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta79= { "S", "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta80= { "TION", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta81= { "TIA", "TCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta82= { "TH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta83= { "TTH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta84= { "OM", "AM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta85= { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta86= { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta87= { "T", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta88= { "WR", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta89= { "WH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta90= { "EWSKI", "EWSKY", "OWSKI", "OWSKY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
+	private static final String[] meta91= { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String[] meta92= { "WICZ", "WITZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta93= { "IAU", "EAU", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta94= { "AU", "OU", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	private static final String[] meta95= { "W", "K", "CZ", "WITZ" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+
+	/** The mutator characters */
+	private static final char[] MUTATOR_CHARACTERS= { 'A', 'B', 'X', 'S', 'K', 'J', 'T', 'F', 'H', 'L', 'M', 'N', 'P', 'R', '0' };
+
+	/** The vowel characters */
+	private static final char[] VOWEL_CHARACTERS= new char[] { 'A', 'E', 'I', 'O', 'U', 'Y' };
+
+	/**
+	 * Test whether the specified string contains one of the candidates in the
+	 * list.
+	 *
+	 * @param candidates
+	 *                   Array of candidates to check
+	 * @param token
+	 *                   The token to check for occurrences of the candidates
+	 * @param offset
+	 *                   The offset where to begin checking in the string
+	 * @param length
+	 *                   The length of the range in the string to check
+	 * @return <code>true</code> iff the string contains one of the
+	 *               candidates, <code>false</code> otherwise.
+	 */
+	protected static final boolean hasOneOf(final String[] candidates, final char[] token, final int offset, final int length) {
+		if (offset < 0 || offset >= token.length || candidates.length == 0)
+			return false;
+
+		final String checkable= new String(token, offset, length);
+		for (int index= 0; index < candidates.length; index++) {
+
+			if (candidates[index].equals(checkable))
+				return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Test whether the specified token contains one of the candidates in the
+	 * list.
+	 *
+	 * @param candidates
+	 *                   Array of candidates to check
+	 * @param token
+	 *                   The token to check for occurrences of the candidates
+	 * @return <code>true</code> iff the string contains one of the
+	 *               candidates, <code>false</code> otherwise.
+	 */
+	protected static final boolean hasOneOf(final String[] candidates, final String token) {
+		for (int index= 0; index < candidates.length; index++) {
+
+			if (token.indexOf(candidates[index]) >= 0)
+				return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Tests whether the specified token contains a vowel at the specified
+	 * offset.
+	 *
+	 * @param token
+	 *                   The token to check for a vowel
+	 * @param offset
+	 *                   The offset where to begin checking in the token
+	 * @param length
+	 *                   The length of the range in the token to check
+	 * @return <code>true</code> iff the token contains a vowel, <code>false</code>
+	 *               otherwise.
+	 */
+	protected static final boolean hasVowel(final char[] token, final int offset, final int length) {
+		if (offset >= 0 && offset < length) {
+			final char character= token[offset];
+			for (int index= 0; index < VOWEL_CHARACTERS.length; index++) {
+				if (VOWEL_CHARACTERS[index] == character)
+					return true;
+			}
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.IPhoneticHasher#getHash(java.lang.String)
+	 */
+	public final String getHash(final String word) {
+		final String input= word.toUpperCase() + "     "; //$NON-NLS-1$
+		final char[] hashable= input.toCharArray();
+
+		final boolean has95= hasOneOf(meta95, input);
+		final StringBuffer buffer= new StringBuffer(hashable.length);
+
+		int offset= 0;
+		if (hasOneOf(meta26, hashable, 0, 2))
+			offset += 1;
+
+		if (hashable[0] == 'X') {
+			buffer.append('S');
+			offset += 1;
+		}
+
+		while (offset < hashable.length) {
+			switch (hashable[offset]) {
+				case 'A' :
+				case 'E' :
+				case 'I' :
+				case 'O' :
+				case 'U' :
+				case 'Y' :
+					if (offset == 0)
+						buffer.append('A');
+					offset += 1;
+					break;
+				case 'B' :
+					buffer.append('P');
+					if (hashable[offset + 1] == 'B')
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case 'C' :
+					if ((offset > 1) && !hasVowel(hashable, offset - 2, hashable.length) && hasOneOf(meta01, hashable, (offset - 1), 3) && (hashable[offset + 2] != 'I') && (hashable[offset + 2] != 'E') || hasOneOf(meta02, hashable, (offset - 2), 6)) {
+						buffer.append('K');
+						offset += 2;
+						break;
+					}
+					if ((offset == 0) && hasOneOf(meta03, hashable, offset, 6)) {
+						buffer.append('S');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta04, hashable, offset, 4)) {
+						buffer.append('K');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta05, hashable, offset, 2)) {
+						if ((offset > 0) && hasOneOf(meta06, hashable, offset, 4)) {
+							buffer.append('K');
+							offset += 2;
+							break;
+						}
+						if ((offset == 0) && hasOneOf(meta07, hashable, (offset + 1), 5) || hasOneOf(meta08, hashable, offset + 1, 3) && !hasOneOf(meta09, hashable, 0, 5)) {
+							buffer.append('K');
+							offset += 2;
+							break;
+						}
+						if (hasOneOf(meta10, hashable, 0, 4) || hasOneOf(meta11, hashable, 0, 3) || hasOneOf(meta12, hashable, offset - 2, 6) || hasOneOf(meta13, hashable, offset + 2, 1) || (hasOneOf(meta14, hashable, offset - 1, 1) || (offset == 0)) && hasOneOf(meta15, hashable, offset + 2, 1)) {
+							buffer.append('K');
+						} else {
+							if (offset > 0) {
+								if (hasOneOf(meta16, hashable, 0, 2))
+									buffer.append('K');
+								else
+									buffer.append('X');
+							} else {
+								buffer.append('X');
+							}
+						}
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta17, hashable, offset, 2) && !hasOneOf(meta18, hashable, offset, 4)) {
+						buffer.append('S');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta19, hashable, offset, 2)) {
+						buffer.append('X');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta20, hashable, offset, 2) && !((offset == 1) && hashable[0] == 'M')) {
+						if (hasOneOf(meta21, hashable, offset + 2, 1) && !hasOneOf(meta22, hashable, offset + 2, 2)) {
+							if (((offset == 1) && (hashable[offset - 1] == 'A')) || hasOneOf(meta23, hashable, (offset - 1), 5))
+								buffer.append("KS"); //$NON-NLS-1$
+							else
+								buffer.append('X');
+							offset += 3;
+							break;
+						} else {
+							buffer.append('K');
+							offset += 2;
+							break;
+						}
+					}
+					if (hasOneOf(meta24, hashable, offset, 2)) {
+						buffer.append('K');
+						offset += 2;
+						break;
+					} else if (hasOneOf(meta25, hashable, offset, 2)) {
+						buffer.append('S');
+						offset += 2;
+						break;
+					}
+					buffer.append('K');
+					if (hasOneOf(meta27, hashable, offset + 1, 2))
+						offset += 3;
+					else if (hasOneOf(meta28, hashable, offset + 1, 1) && !hasOneOf(meta29, hashable, offset + 1, 2))
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case '\u00C7' :
+					buffer.append('S');
+					offset += 1;
+					break;
+				case 'D' :
+					if (hasOneOf(meta30, hashable, offset, 2)) {
+						if (hasOneOf(meta31, hashable, offset + 2, 1)) {
+							buffer.append('J');
+							offset += 3;
+							break;
+						} else {
+							buffer.append("TK"); //$NON-NLS-1$
+							offset += 2;
+							break;
+						}
+					}
+					buffer.append('T');
+					if (hasOneOf(meta32, hashable, offset, 2)) {
+						offset += 2;
+					} else {
+						offset += 1;
+					}
+					break;
+				case 'F' :
+					if (hashable[offset + 1] == 'F')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('F');
+					break;
+				case 'G' :
+					if (hashable[offset + 1] == 'H') {
+						if ((offset > 0) && !hasVowel(hashable, offset - 1, hashable.length)) {
+							buffer.append('K');
+							offset += 2;
+							break;
+						}
+						if (offset < 3) {
+							if (offset == 0) {
+								if (hashable[offset + 2] == 'I')
+									buffer.append('J');
+								else
+									buffer.append('K');
+								offset += 2;
+								break;
+							}
+						}
+						if ((offset > 1) && hasOneOf(meta33, hashable, offset - 2, 1) || ((offset > 2) && hasOneOf(meta34, hashable, offset - 3, 1)) || ((offset > 3) && hasOneOf(meta35, hashable, offset - 4, 1))) {
+							offset += 2;
+							break;
+						} else {
+							if ((offset > 2) && (hashable[offset - 1] == 'U') && hasOneOf(meta36, hashable, offset - 3, 1)) {
+								buffer.append('F');
+							} else {
+								if ((offset > 0) && (hashable[offset - 1] != 'I'))
+									buffer.append('K');
+							}
+							offset += 2;
+							break;
+						}
+					}
+					if (hashable[offset + 1] == 'N') {
+						if ((offset == 1) && hasVowel(hashable, 0, hashable.length) && !has95) {
+							buffer.append("KN"); //$NON-NLS-1$
+						} else {
+							if (!hasOneOf(meta37, hashable, offset + 2, 2) && (hashable[offset + 1] != 'Y') && !has95) {
+								buffer.append("N"); //$NON-NLS-1$
+							} else {
+								buffer.append("KN"); //$NON-NLS-1$
+							}
+						}
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta38, hashable, offset + 1, 2) && !has95) {
+						buffer.append("KL"); //$NON-NLS-1$
+						offset += 2;
+						break;
+					}
+					if ((offset == 0) && ((hashable[offset + 1] == 'Y') || hasOneOf(meta39, hashable, offset + 1, 2))) {
+						buffer.append('K');
+						offset += 2;
+						break;
+					}
+					if ((hasOneOf(meta40, hashable, offset + 1, 2) || (hashable[offset + 1] == 'Y')) && !hasOneOf(meta41, hashable, 0, 6) && !hasOneOf(meta42, hashable, offset - 1, 1) && !hasOneOf(meta43, hashable, offset - 1, 3)) {
+						buffer.append('K');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta44, hashable, offset + 1, 1) || hasOneOf(meta45, hashable, offset - 1, 4)) {
+						if (hasOneOf(meta46, hashable, 0, 4) || hasOneOf(meta47, hashable, 0, 3) || hasOneOf(meta48, hashable, offset + 1, 2)) {
+							buffer.append('K');
+						} else {
+							buffer.append('J');
+						}
+						offset += 2;
+						break;
+					}
+					if (hashable[offset + 1] == 'G')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('K');
+					break;
+				case 'H' :
+					if (((offset == 0) || hasVowel(hashable, offset - 1, hashable.length)) && hasVowel(hashable, offset + 1, hashable.length)) {
+						buffer.append('H');
+						offset += 2;
+					} else {
+						offset += 1;
+					}
+					break;
+				case 'J' :
+					if (hasOneOf(meta50, hashable, offset, 4) || hasOneOf(meta51, hashable, 0, 4)) {
+						if ((offset == 0) && (hashable[offset + 4] == ' ') || hasOneOf(meta52, hashable, 0, 4)) {
+							buffer.append('H');
+						} else {
+							buffer.append('J');
+						}
+						offset += 1;
+						break;
+					}
+					if ((offset == 0) && !hasOneOf(meta53, hashable, offset, 4)) {
+						buffer.append('J');
+					} else {
+						if (hasVowel(hashable, offset - 1, hashable.length) && !has95 && ((hashable[offset + 1] == 'A') || hashable[offset + 1] == 'O')) {
+							buffer.append('J');
+						} else {
+							if (offset == (hashable.length - 1)) {
+								buffer.append('J');
+							} else {
+								if (!hasOneOf(meta54, hashable, offset + 1, 1) && !hasOneOf(meta55, hashable, offset - 1, 1)) {
+									buffer.append('J');
+								}
+							}
+						}
+					}
+					if (hashable[offset + 1] == 'J')
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case 'K' :
+					if (hashable[offset + 1] == 'K')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('K');
+					break;
+				case 'L' :
+					if (hashable[offset + 1] == 'L') {
+						if (((offset == (hashable.length - 3)) && hasOneOf(meta56, hashable, offset - 1, 4)) || ((hasOneOf(meta57, hashable, (hashable.length - 1) - 1, 2) || hasOneOf(meta58, hashable, hashable.length - 1, 1)) && hasOneOf(meta59, hashable, offset - 1, 4))) {
+							buffer.append('L');
+							offset += 2;
+							break;
+						}
+						offset += 2;
+					} else
+						offset += 1;
+					buffer.append('L');
+					break;
+				case 'M' :
+					if ((hasOneOf(meta60, hashable, offset - 1, 3) && (((offset + 1) == (hashable.length - 1)) || hasOneOf(meta61, hashable, offset + 2, 2))) || (hashable[offset + 1] == 'M'))
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('M');
+					break;
+				case 'N' :
+					if (hashable[offset + 1] == 'N')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('N');
+					break;
+				case '\u00D1' :
+					offset += 1;
+					buffer.append('N');
+					break;
+				case 'P' :
+					if (hashable[offset + 1] == 'N') {
+						buffer.append('F');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta62, hashable, offset + 1, 1))
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('P');
+					break;
+				case 'Q' :
+					if (hashable[offset + 1] == 'Q')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('K');
+					break;
+				case 'R' :
+					if (!((offset == (hashable.length - 1)) && !has95 && hasOneOf(meta63, hashable, offset - 2, 2) && !hasOneOf(meta64, hashable, offset - 4, 2)))
+						buffer.append('R');
+					if (hashable[offset + 1] == 'R')
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case 'S' :
+					if (hasOneOf(meta65, hashable, offset - 1, 3)) {
+						offset += 1;
+						break;
+					}
+					if ((offset == 0) && hasOneOf(meta66, hashable, offset, 5)) {
+						buffer.append('X');
+						offset += 1;
+						break;
+					}
+					if (hasOneOf(meta67, hashable, offset, 2)) {
+						if (hasOneOf(meta68, hashable, offset + 1, 4))
+							buffer.append('S');
+						else
+							buffer.append('X');
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta69, hashable, offset, 3) || hasOneOf(meta70, hashable, offset, 4)) {
+						buffer.append('S');
+						offset += 3;
+						break;
+					}
+					if (((offset == 0) && hasOneOf(meta71, hashable, offset + 1, 1)) || hasOneOf(meta72, hashable, offset + 1, 1)) {
+						buffer.append('S');
+						if (hasOneOf(meta73, hashable, offset + 1, 1))
+							offset += 2;
+						else
+							offset += 1;
+						break;
+					}
+					if (hasOneOf(meta74, hashable, offset, 2)) {
+						if (hashable[offset + 2] == 'H')
+							if (hasOneOf(meta75, hashable, offset + 3, 2)) {
+								if (hasOneOf(meta76, hashable, offset + 3, 2)) {
+									buffer.append("X"); //$NON-NLS-1$
+								} else {
+									buffer.append("SK"); //$NON-NLS-1$
+								}
+								offset += 3;
+								break;
+							} else {
+								buffer.append('X');
+								offset += 3;
+								break;
+							}
+						if (hasOneOf(meta77, hashable, offset + 2, 1)) {
+							buffer.append('S');
+							offset += 3;
+							break;
+						}
+						buffer.append("SK"); //$NON-NLS-1$
+						offset += 3;
+						break;
+					}
+					if (!((offset == (hashable.length - 1)) && hasOneOf(meta78, hashable, offset - 2, 2)))
+						buffer.append('S');
+					if (hasOneOf(meta79, hashable, offset + 1, 1))
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case 'T' :
+					if (hasOneOf(meta80, hashable, offset, 4)) {
+						buffer.append('X');
+						offset += 3;
+						break;
+					}
+					if (hasOneOf(meta81, hashable, offset, 3)) {
+						buffer.append('X');
+						offset += 3;
+						break;
+					}
+					if (hasOneOf(meta82, hashable, offset, 2) || hasOneOf(meta83, hashable, offset, 3)) {
+						if (hasOneOf(meta84, hashable, (offset + 2), 2) || hasOneOf(meta85, hashable, 0, 4) || hasOneOf(meta86, hashable, 0, 3)) {
+							buffer.append('T');
+						} else {
+							buffer.append('0');
+						}
+						offset += 2;
+						break;
+					}
+					if (hasOneOf(meta87, hashable, offset + 1, 1)) {
+						offset += 2;
+					} else
+						offset += 1;
+					buffer.append('T');
+					break;
+				case 'V' :
+					if (hashable[offset + 1] == 'V')
+						offset += 2;
+					else
+						offset += 1;
+					buffer.append('F');
+					break;
+				case 'W' :
+					if (hasOneOf(meta88, hashable, offset, 2)) {
+						buffer.append('R');
+						offset += 2;
+						break;
+					}
+					if ((offset == 0) && (hasVowel(hashable, offset + 1, hashable.length) || hasOneOf(meta89, hashable, offset, 2))) {
+						buffer.append('A');
+					}
+					if (((offset == (hashable.length - 1)) && hasVowel(hashable, offset - 1, hashable.length)) || hasOneOf(meta90, hashable, offset - 1, 5) || hasOneOf(meta91, hashable, 0, 3)) {
+						buffer.append('F');
+						offset += 1;
+						break;
+					}
+					if (hasOneOf(meta92, hashable, offset, 4)) {
+						buffer.append("TS"); //$NON-NLS-1$
+						offset += 4;
+						break;
+					}
+					offset += 1;
+					break;
+				case 'X' :
+					if (!((offset == (hashable.length - 1)) && (hasOneOf(meta93, hashable, offset - 3, 3) || hasOneOf(meta94, hashable, offset - 2, 2))))
+						buffer.append("KS"); //$NON-NLS-1$
+					if (hasOneOf(meta49, hashable, offset + 1, 1))
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				case 'Z' :
+					if (hashable[offset + 1] == 'H') {
+						buffer.append('J');
+						offset += 2;
+						break;
+					} else {
+						buffer.append('S');
+					}
+					if (hashable[offset + 1] == 'Z')
+						offset += 2;
+					else
+						offset += 1;
+					break;
+				default :
+					offset += 1;
+			}
+		}
+		return buffer.toString();
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.IPhoneticHasher#getMutators()
+	 */
+	public final char[] getMutators() {
+		return MUTATOR_CHARACTERS;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/DefaultSpellChecker.java

@@ -0,0 +1,344 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Locale;
+import java.util.Set;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.preference.IPreferenceStore;
+
+import org.eclipse.cdt.internal.ui.text.spelling.SpellingPreferences;
+
+/**
+ * Default spell checker for standard text.
+ */
+public class DefaultSpellChecker implements ISpellChecker {
+	/** Array of URL prefixes */
+	public static final String[] URL_PREFIXES= new String[] { "http://", "https://", "www.", "ftp://", "ftps://", "news://", "mailto://" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
+
+	/**
+	 * Does this word contain digits?
+	 *
+	 * @param word the word to check
+	 * @return <code>true</code> iff this word contains digits, <code>false</code> otherwise
+	 */
+	protected static boolean isDigits(final String word) {
+		for (int index= 0; index < word.length(); index++) {
+			if (Character.isDigit(word.charAt(index)))
+				return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Does this word contain mixed-case letters?
+	 *
+	 * @param word
+	 *                   The word to check
+	 * @param sentence
+	 *                   <code>true</code> iff the specified word starts a new
+	 *                   sentence, <code>false</code> otherwise
+	 * @return <code>true</code> iff the contains mixed-case letters, <code>false</code>
+	 *               otherwise
+	 */
+	protected static boolean isMixedCase(final String word, final boolean sentence) {
+		final int length= word.length();
+		boolean upper= Character.isUpperCase(word.charAt(0));
+
+		if (sentence && upper && (length > 1))
+			upper= Character.isUpperCase(word.charAt(1));
+
+		if (upper) {
+			for (int index= length - 1; index > 0; index--) {
+				if (Character.isLowerCase(word.charAt(index)))
+					return true;
+			}
+		} else {
+			for (int index= length - 1; index > 0; index--) {
+				if (Character.isUpperCase(word.charAt(index)))
+					return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Does this word contain upper-case letters only?
+	 *
+	 * @param word
+	 *                   The word to check
+	 * @return <code>true</code> iff this word only contains upper-case
+	 *               letters, <code>false</code> otherwise
+	 */
+	protected static boolean isUpperCase(final String word) {
+		for (int index= word.length() - 1; index >= 0; index--) {
+			if (Character.isLowerCase(word.charAt(index)))
+				return false;
+		}
+		return true;
+	}
+
+	/**
+	 * Does this word look like an URL?
+	 *
+	 * @param word
+	 *                   The word to check
+	 * @return <code>true</code> iff this word looks like an URL, <code>false</code>
+	 *               otherwise
+	 */
+	protected static boolean isUrl(final String word) {
+		for (int index= 0; index < URL_PREFIXES.length; index++) {
+			if (word.startsWith(URL_PREFIXES[index]))
+				return true;
+		}
+		return false;
+	}
+
+	/**
+	 * The dictionaries to use for spell checking. Synchronized to avoid
+	 * concurrent modifications.
+	 */
+	private final Set fDictionaries= Collections.synchronizedSet(new HashSet());
+
+	/**
+	 * The words to be ignored. Synchronized to avoid concurrent modifications.
+	 */
+	private final Set fIgnored= Collections.synchronizedSet(new HashSet());
+
+	/**
+	 * The spell event listeners. Synchronized to avoid concurrent
+	 * modifications.
+	 */
+	private final Set fListeners= Collections.synchronizedSet(new HashSet());
+
+	/**
+	 * The locale of this checker.
+	 */
+	private Locale fLocale;
+
+	/**
+	 * Creates a new default spell checker.
+	 *
+	 * @param store the preference store for this spell checker
+	 * @param locale the locale
+	 */
+	public DefaultSpellChecker(IPreferenceStore store, Locale locale) {
+		Assert.isLegal(store != null);
+		Assert.isLegal(locale != null);
+		
+		fLocale= locale;
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#addDictionary(org.eclipse.spelling.done.ISpellDictionary)
+	 */
+	public final void addDictionary(final ISpellDictionary dictionary) {
+		// synchronizing is necessary as this is a write access
+		fDictionaries.add(dictionary);
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#addListener(org.eclipse.spelling.done.ISpellEventListener)
+	 */
+	public final void addListener(final ISpellEventListener listener) {
+		// synchronizing is necessary as this is a write access
+		fListeners.add(listener);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellChecker#acceptsWords()
+	 */
+	public boolean acceptsWords() {
+		// synchronizing might not be needed here since acceptWords is
+		// a read-only access and only called in the same thread as
+		// the modifying methods add/checkWord (?)
+		Set copy;
+		synchronized (fDictionaries) {
+			copy= new HashSet(fDictionaries);
+		}
+
+		ISpellDictionary dictionary= null;
+		for (final Iterator iterator= copy.iterator(); iterator.hasNext();) {
+			dictionary= (ISpellDictionary) iterator.next();
+			if (dictionary.acceptsWords())
+				return true;
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker#addWord(java.lang.String)
+	 */
+	public void addWord(final String word) {
+		// synchronizing is necessary as this is a write access
+		Set copy;
+		synchronized (fDictionaries) {
+			copy= new HashSet(fDictionaries);
+		}
+
+		final String addable= word.toLowerCase();
+		for (final Iterator iterator= copy.iterator(); iterator.hasNext();) {
+			ISpellDictionary dictionary= (ISpellDictionary) iterator.next();
+			if (dictionary.acceptsWords())
+				dictionary.addWord(addable);
+		}
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.ISpellChecker#checkWord(java.lang.String)
+	 */
+	public final void checkWord(final String word) {
+		// synchronizing is necessary as this is a write access
+		fIgnored.remove(word.toLowerCase());
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#execute(org.eclipse.spelling.ISpellCheckTokenizer)
+	 */
+	public void execute(final ISpellCheckIterator iterator) {
+		final boolean ignoreDigits= SpellingPreferences.isIgnoreDigits();
+		final boolean ignoreMixed= SpellingPreferences.isIgnoreMixed();
+		final boolean ignoreSentence= SpellingPreferences.isIgnoreSentence();
+		final boolean ignoreUpper= SpellingPreferences.isIgnoreUpper();
+		final boolean ignoreUrls= SpellingPreferences.isIgnoreUrls();
+		final boolean ignoreNonLetters= SpellingPreferences.isIgnoreNonLetters();
+		final boolean ignoreSingleLetters= SpellingPreferences.isIgnoreSingleLetters();
+		
+		iterator.setIgnoreSingleLetters(ignoreSingleLetters);
+		
+		Iterator iter= fDictionaries.iterator();
+		while (iter.hasNext())
+			((ISpellDictionary) iter.next()).setStripNonLetters(ignoreNonLetters);
+
+		String word= null;
+		boolean starts= false;
+
+		while (iterator.hasNext()) {
+			word= (String) iterator.next();
+			if (word != null) {
+				// synchronizing is necessary as this is called inside the reconciler
+				if (!fIgnored.contains(word)) {
+					starts= iterator.startsSentence();
+					if (!isCorrect(word)) {
+					    boolean isMixed=  isMixedCase(word, true);
+					    boolean isUpper= isUpperCase(word);
+					    boolean isDigits= isDigits(word);
+					    boolean isUrl= isUrl(word);
+
+					    if ( !ignoreMixed && isMixed || !ignoreUpper && isUpper || !ignoreDigits && isDigits || !ignoreUrls && isUrl || !(isMixed || isUpper || isDigits || isUrl))
+					        fireEvent(new SpellEvent(this, word, iterator.getBegin(), iterator.getEnd(), starts, false));
+					} else {
+						if (!ignoreSentence && starts && Character.isLowerCase(word.charAt(0)))
+							fireEvent(new SpellEvent(this, word, iterator.getBegin(), iterator.getEnd(), true, true));
+					}
+				}
+			}
+		}
+	}
+
+	/**
+	 * Fires the specified event.
+	 *
+	 * @param event
+	 *                   Event to fire
+	 */
+	protected final void fireEvent(final ISpellEvent event) {
+		// synchronizing is necessary as this is called from execute
+		Set copy;
+		synchronized (fListeners) {
+			copy= new HashSet(fListeners);
+		}
+		for (final Iterator iterator= copy.iterator(); iterator.hasNext();) {
+			((ISpellEventListener)iterator.next()).handle(event);
+		}
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#getProposals(java.lang.String,boolean)
+	 */
+	public Set getProposals(final String word, final boolean sentence) {
+		// synchronizing might not be needed here since getProposals is
+		// a read-only access and only called in the same thread as
+		// the modifying methods add/removeDictionary (?)
+		Set copy;
+		synchronized (fDictionaries) {
+			copy= new HashSet(fDictionaries);
+		}
+
+		ISpellDictionary dictionary= null;
+		final HashSet proposals= new HashSet();
+
+		for (final Iterator iterator= copy.iterator(); iterator.hasNext();) {
+			dictionary= (ISpellDictionary)iterator.next();
+			proposals.addAll(dictionary.getProposals(word, sentence));
+		}
+		return proposals;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker#ignoreWord(java.lang.String)
+	 */
+	public final void ignoreWord(final String word) {
+		// synchronizing is necessary as this is a write access
+		fIgnored.add(word.toLowerCase());
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker#isCorrect(java.lang.String)
+	 */
+	public final boolean isCorrect(final String word) {
+		// synchronizing is necessary as this is called from execute
+		Set copy;
+		synchronized (fDictionaries) {
+			copy= new HashSet(fDictionaries);
+		}
+
+		if (fIgnored.contains(word.toLowerCase()))
+			return true;
+
+		ISpellDictionary dictionary= null;
+		for (final Iterator iterator= copy.iterator(); iterator.hasNext();) {
+			dictionary= (ISpellDictionary) iterator.next();
+			if (dictionary.isCorrect(word))
+				return true;
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#removeDictionary(org.eclipse.spelling.done.ISpellDictionary)
+	 */
+	public final void removeDictionary(final ISpellDictionary dictionary) {
+		// synchronizing is necessary as this is a write access
+		fDictionaries.remove(dictionary);
+	}
+
+	/*
+	 * @see org.eclipse.spelling.done.ISpellChecker#removeListener(org.eclipse.spelling.done.ISpellEventListener)
+	 */
+	public final void removeListener(final ISpellEventListener listener) {
+		// synchronizing is necessary as this is a write access
+		fListeners.remove(listener);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellChecker#getLocale()
+	 */
+	public Locale getLocale() {
+		return fLocale;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/IPhoneticDistanceAlgorithm.java

@@ -0,0 +1,30 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Interface of algorithms to compute the phonetic distance between two words.
+ */
+public interface IPhoneticDistanceAlgorithm {
+
+	/**
+	 * Returns the non-negative phonetic distance between two words
+	 *
+	 * @param from
+	 *                  The first word
+	 * @param to
+	 *                  The second word
+	 * @return The non-negative phonetic distance between the words.
+	 */
+	public int getDistance(String from, String to);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/IPhoneticHashProvider.java

@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Interface of hashers to compute the phonetic hash for a word.
+ */
+public interface IPhoneticHashProvider {
+
+	/**
+	 * Returns the phonetic hash for the word.
+	 *
+	 * @param word
+	 *                  The word to get the phonetic hash for
+	 * @return The phonetic hash for the word
+	 */
+	public String getHash(String word);
+
+	/**
+	 * Returns an array of characters to compute possible mutations.
+	 *
+	 * @return Array of possible mutator characters
+	 */
+	public char[] getMutators();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellCheckEngine.java

@@ -0,0 +1,83 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Locale;
+
+import org.eclipse.cdt.internal.ui.text.spelling.SpellingPreferences;
+
+/**
+ * Interface for a spell check engine.
+ * <p>
+ * This engine can be configured with multiple
+ * dictionaries.
+ * </p>
+ */
+public interface ISpellCheckEngine {
+
+	/**
+	 * Returns a spell checker configured with the global
+	 * dictionaries and the locale dictionary that correspond to the current
+	 * {@linkplain SpellingPreferences#getSpellingLocale() locale preference}.
+	 * <p>
+	 * <strong>Note:</strong> Changes to the spelling engine dictionaries
+	 * are not propagated to this spell checker.</p>
+	 *
+	 * @return a configured instance of the spell checker or <code>null</code> if none
+	 * @throws IllegalStateException if called after being shut down
+	 */
+	ISpellChecker getSpellChecker() throws IllegalStateException;
+
+	/**
+	 * Returns the locale of the current spell check engine.
+	 *
+	 * @return the locale of the current spell check engine
+	 */
+	Locale getLocale();
+
+	/**
+	 * Registers a global dictionary.
+	 *
+	 * @param dictionary the global dictionary to register
+	 */
+	void registerGlobalDictionary(ISpellDictionary dictionary);
+
+	/**
+	 * Registers a dictionary tuned for the specified locale with this engine.
+	 *
+	 * @param locale
+	 *                   The locale to register the dictionary with
+	 * @param dictionary
+	 *                   The dictionary to register
+	 */
+	void registerDictionary(Locale locale, ISpellDictionary dictionary);
+
+	/**
+	 * Shuts down this spell check engine and its associated components.
+	 * <p>
+	 * Further calls to this engine result in exceptions.
+	 * </p>
+	 */
+	void shutdown();
+
+	/**
+	 * Unregisters a dictionary previously registered either by a call to
+	 * <code>registerDictionary(Locale,ISpellDictionary)</code> or <code>registerDictionary(ISpellDictionary)</code>.
+	 * <p>
+	 * If the dictionary was not registered before, nothing happens.</p>
+	 *
+	 * @param dictionary the dictionary to unregister
+	 */
+	void unregisterDictionary(ISpellDictionary dictionary);
+	
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellCheckIterator.java

@@ -0,0 +1,49 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Iterator;
+
+/**
+ * Interface for iterators used for spell checking.
+ */
+public interface ISpellCheckIterator extends Iterator {
+	/**
+	 * Returns the begin index (inclusive) of the current word.
+	 *
+	 * @return The begin index of the current word
+	 */
+	public int getBegin();
+
+	/**
+	 * Returns the end index (exclusive) of the current word.
+	 *
+	 * @return The end index of the current word
+	 */
+	public int getEnd();
+
+	/**
+	 * Does the current word start a new sentence?
+	 *
+	 * @return <code>true<code> iff the current word starts a new sentence, <code>false</code> otherwise
+	 */
+	public boolean startsSentence();
+
+	/**
+	 * Tells whether to ignore single letters
+	 * from being checked.
+	 * 
+	 * @param state <code>true</code> if single letters should be ignored
+	 */
+	public void setIgnoreSingleLetters(boolean state);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellChecker.java

@@ -0,0 +1,113 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Locale;
+import java.util.Set;
+
+/**
+ * Interface for spell checkers.
+ */
+public interface ISpellChecker {
+
+	/**
+	 * Adds a dictionary to the list of active dictionaries.
+	 *
+	 * @param dictionary The dictionary to add
+	 */
+	void addDictionary(ISpellDictionary dictionary);
+
+	/**
+	 * Adds a spell event listener to the active listeners.
+	 *
+	 * @param listener   The listener to add
+	 */
+	void addListener(ISpellEventListener listener);
+
+	/**
+	 * Returns whether this spell checker accepts word additions.
+	 *
+	 * @return <code>true</code> if word additions are accepted, <code>false</code> otherwise
+	 */
+	boolean acceptsWords();
+
+	/**
+	 * Adds the specified word to the set of correct words.
+	 *
+	 * @param word       The word to add to the set of correct words
+	 */
+	void addWord(String word);
+
+	/**
+	 * Checks the specified word until calling <code>ignoreWord(String)</code>.
+	 *
+	 * @param word       The word to check
+	 */
+	void checkWord(String word);
+
+	/**
+	 * Checks the spelling with the spell check iterator. Implementations must
+	 * be thread safe as this may be called inside a reconciler thread.
+	 *
+	 * @param iterator   The iterator to use for spell checking
+	 */
+	void execute(ISpellCheckIterator iterator);
+
+	/**
+	 * Returns the ranked proposals for a word.
+	 *
+	 * @param word       The word to retrieve the proposals for
+	 * @param sentence   <code>true</code> iff the proposals should start a
+	 *                   sentence, <code>false</code> otherwise
+	 * @return Set of ranked proposals for the word
+	 */
+	Set getProposals(String word, boolean sentence);
+
+	/**
+	 * Ignores the specified word until calling <code>checkWord(String)</code>.
+	 *
+	 * @param word The word to ignore
+	 */
+	void ignoreWord(String word);
+
+	/**
+	 * Is the specified word correctly spelled? Implementations must be thread
+	 * safe as this may be called from within a reconciler thread.
+	 *
+	 * @param word The word to check its spelling
+	 * @return <code>true</code> iff the word is correctly spelled, <code>false</code>
+	 *               otherwise
+	 */
+	boolean isCorrect(String word);
+
+	/**
+	 * Remove a dictionary from the list of active dictionaries.
+	 *
+	 * @param dictionary The dictionary to remove
+	 */
+	void removeDictionary(ISpellDictionary dictionary);
+
+	/**
+	 * Removes a spell event listener from the active listeners.
+	 *
+	 * @param listener The listener to remove
+	 */
+	void removeListener(ISpellEventListener listener);
+	
+	/**
+	 * Returns the current locale of the spell check engine.
+	 *
+	 * @return The current locale of the engine
+	 */
+	Locale getLocale();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellDictionary.java

@@ -0,0 +1,71 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Set;
+
+/**
+ * Interface of dictionaries to use for spell checking.
+ */
+public interface ISpellDictionary {
+	/**
+	 * Returns whether this dictionary accepts new words.
+	 *
+	 * @return <code>true</code> if this dictionary accepts new words, <code>false</code> otherwise
+	 */
+	public boolean acceptsWords();
+
+	/**
+	 * Externalizes the specified word.
+	 *
+	 * @param word       The word to externalize in the dictionary
+	 */
+	public void addWord(String word);
+
+	/**
+	 * Returns the ranked word proposals for an incorrectly spelled word.
+	 *
+	 * @param word       The word to retrieve the proposals for
+	 * @param sentence   <code>true</code> iff the proposals start a new sentence,
+	 *                   <code>false</code> otherwise
+	 * @return Array of ranked word proposals
+	 */
+	public Set getProposals(String word, boolean sentence);
+
+	/**
+	 * Is the specified word correctly spelled?
+	 *
+	 * @param word the word to spell check
+	 * @return <code>true</code> iff this word is correctly spelled, <code>false</code> otherwise
+	 */
+	public boolean isCorrect(String word);
+
+	/**
+	 * Is the dictionary loaded?
+	 *
+	 * @return <code>true</code> iff it is loaded, <code>false</code> otherwise
+	 */
+	public boolean isLoaded();
+
+	/**
+	 * Empties the dictionary.
+	 */
+	public void unload();
+
+	/**
+	 * Tells whether to strip non-letters from word boundaries.
+	 * 
+	 * @param state <code>true</code> if non-letters should be stripped
+	 */
+	public void setStripNonLetters(boolean state);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellEvent.java

@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Set;
+
+/**
+ * Event fired by spell checkers.
+ */
+public interface ISpellEvent {
+
+	/**
+	 * Returns the begin index of the incorrectly spelled word.
+	 *
+	 * @return The begin index of the word
+	 */
+	public int getBegin();
+
+	/**
+	 * Returns the end index of the incorrectly spelled word.
+	 *
+	 * @return The end index of the word
+	 */
+	public int getEnd();
+
+	/**
+	 * Returns the proposals for the incorrectly spelled word.
+	 *
+	 * @return Array of proposals for the word
+	 */
+	public Set getProposals();
+
+	/**
+	 * Returns the incorrectly spelled word.
+	 *
+	 * @return The incorrect word
+	 */
+	public String getWord();
+
+	/**
+	 * Was the incorrectly spelled word found in the dictionary?
+	 *
+	 * @return <code>true</code> iff the word was found, <code>false</code> otherwise
+	 */
+	public boolean isMatch();
+
+	/**
+	 * Does the incorrectly spelled word start a new sentence?
+	 *
+	 * @return <code>true<code> iff the word starts a new sentence, <code>false</code> otherwise
+	 */
+	public boolean isStart();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/ISpellEventListener.java

@@ -0,0 +1,25 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Interface for spell event listeners.
+ */
+public interface ISpellEventListener {
+	/**
+	 * Handles a spell event.
+	 *
+	 * @param event     Event to handle
+	 */
+	public void handle(ISpellEvent event);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/LocaleSensitiveSpellDictionary.java

@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Locale;
+
+/**
+ * Platform wide read-only locale sensitive dictionary for spell checking.
+ */
+public class LocaleSensitiveSpellDictionary extends AbstractSpellDictionary {
+	/** The locale of this dictionary */
+	private final Locale fLocale;
+
+	/** The location of the dictionaries */
+	private final URL fLocation;
+
+	/**
+	 * Creates a new locale sensitive spell dictionary.
+	 *
+	 * @param locale     The locale for this dictionary
+	 * @param location   The location of the locale sensitive dictionaries
+	 */
+	public LocaleSensitiveSpellDictionary(final Locale locale, final URL location) {
+		fLocation= location;
+		fLocale= locale;
+	}
+
+	/**
+	 * Returns the locale of this dictionary.
+	 *
+	 * @return The locale of this dictionary
+	 */
+	public final Locale getLocale() {
+		return fLocale;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.AbstractSpellDictionary#getURL()
+	 */
+	protected final URL getURL() throws MalformedURLException {
+		return new URL(fLocation, fLocale.toString() + ".dictionary");  //$NON-NLS-1$
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/PersistentSpellDictionary.java

@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.net.URL;
+import java.nio.ByteBuffer;
+import java.nio.charset.Charset;
+
+import org.eclipse.cdt.ui.CUIPlugin;
+
+/**
+ * Persistent modifiable word-list based dictionary.
+ */
+public class PersistentSpellDictionary extends AbstractSpellDictionary {
+	/** The word list location */
+	private final URL fLocation;
+
+	/**
+	 * Creates a new persistent spell dictionary.
+	 *
+	 * @param url        The URL of the word list for this dictionary
+	 */
+	public PersistentSpellDictionary(final URL url) {
+		fLocation= url;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.ui.text.spelling.engine.AbstractSpellDictionary#acceptsWords()
+	 */
+	public boolean acceptsWords() {
+		return true;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellDictionary#addWord(java.lang.String)
+	 */
+	public void addWord(final String word) {
+		if (isCorrect(word))
+			return;
+
+		OutputStreamWriter writer= null;
+		try {
+			Charset charset= Charset.forName(getEncoding());
+			ByteBuffer byteBuffer= charset.encode(word + "\n"); //$NON-NLS-1$
+			int size= byteBuffer.limit();
+			final byte[] byteArray;
+			if (byteBuffer.hasArray())
+				byteArray= byteBuffer.array();
+			else {
+				byteArray= new byte[size];
+				byteBuffer.get(byteArray);
+			}
+			
+			FileOutputStream fileStream= new FileOutputStream(fLocation.getPath(), true);
+			
+			// Encoding UTF-16 charset writes a BOM. In which case we need to cut it away if the file isn't empty
+			int bomCutSize= 0;
+			if (!isEmpty() && "UTF-16".equals(charset.name())) //$NON-NLS-1$
+				bomCutSize= 2;
+			
+			fileStream.write(byteArray, bomCutSize, size - bomCutSize);
+		} catch (IOException exception) {
+			CUIPlugin.getDefault().log(exception);
+			return;
+		} finally {
+			try {
+				if (writer != null)
+					writer.close();
+			} catch (IOException e) {
+			}
+		}
+
+		hashWord(word);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.AbstractSpellDictionary#getURL()
+	 */
+	protected final URL getURL() {
+		return fLocation;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/RankedWordProposal.java

@@ -0,0 +1,96 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+/**
+ * Ranked word proposal for quick fix and content assist.
+ */
+public class RankedWordProposal implements Comparable {
+	/** The word rank */
+	private int fRank;
+
+	/** The word text */
+	private final String fText;
+
+	/**
+	 * Creates a new ranked word proposal.
+	 *
+	 * @param text       The text of this proposal
+	 * @param rank       The rank of this proposal
+	 */
+	public RankedWordProposal(final String text, final int rank) {
+		fText= text;
+		fRank= rank;
+	}
+
+	/*
+	 * @see java.lang.Comparable#compareTo(java.lang.Object)
+	 */
+	public final int compareTo(Object object) {
+
+		final RankedWordProposal word= (RankedWordProposal)object;
+		final int rank= word.getRank();
+
+		if (fRank < rank)
+			return -1;
+
+		if (fRank > rank)
+			return 1;
+
+		return 0;
+	}
+
+	/*
+	 * @see java.lang.Object#equals(java.lang.Object)
+	 */
+	public final boolean equals(Object object) {
+		if (object instanceof RankedWordProposal)
+			return object.hashCode() == hashCode();
+
+		return false;
+	}
+
+	/**
+	 * Returns the rank of the word
+	 *
+	 * @return The rank of the word
+	 */
+	public final int getRank() {
+		return fRank;
+	}
+
+	/**
+	 * Returns the text of this word.
+	 *
+	 * @return The text of this word
+	 */
+	public final String getText() {
+		return fText;
+	}
+
+	/*
+	 * @see java.lang.Object#hashCode()
+	 */
+	public final int hashCode() {
+		return fText.hashCode();
+	}
+
+	/**
+	 * Sets the rank of the word.
+	 *
+	 * @param rank       The rank to set
+	 */
+	public final void setRank(final int rank) {
+		fRank= rank;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/spelling/engine/SpellEvent.java

@@ -0,0 +1,101 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Sergey Prigogin (Google)
+ *******************************************************************************/
+
+package org.eclipse.cdt.internal.ui.text.spelling.engine;
+
+import java.util.Set;
+
+/**
+ * Spell event fired for words detected by a spell check iterator.
+ */
+public class SpellEvent implements ISpellEvent {
+	/** The begin index of the word in the spell checkable medium */
+	private final int fBegin;
+
+	/** The spell checker that causes the event */
+	private final ISpellChecker fChecker;
+
+	/** The end index of the word in the spell checkable medium */
+	private final int fEnd;
+
+	/** Was the word found in the dictionary? */
+	private final boolean fMatch;
+
+	/** Does the word start a new sentence? */
+	private final boolean fSentence;
+
+	/** The word that causes the spell event */
+	private final String fWord;
+
+	/**
+	 * Creates a new spell event.
+	 *
+	 * @param checker    The spell checker that causes the event
+	 * @param word       The word that causes the event
+	 * @param begin      The begin index of the word in the spell checkable medium
+	 * @param end        The end index of the word in the spell checkable medium
+	 * @param sentence   <code>true</code> iff the word starts a new sentence,
+	 *                   <code>false</code> otherwise
+	 * @param match      <code>true</code> iff the word was found in the dictionary,
+	 *                   <code>false</code> otherwise
+	 */
+	protected SpellEvent(final ISpellChecker checker, final String word, final int begin, final int end, final boolean sentence, final boolean match) {
+		fChecker= checker;
+		fEnd= end;
+		fBegin= begin;
+		fWord= word;
+		fSentence= sentence;
+		fMatch= match;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#getBegin()
+	 */
+	public final int getBegin() {
+		return fBegin;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#getEnd()
+	 */
+	public final int getEnd() {
+		return fEnd;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#getProposals()
+	 */
+	public final Set getProposals() {
+		return fChecker.getProposals(fWord, fSentence);
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#getWord()
+	 */
+	public final String getWord() {
+		return fWord;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#isMatch()
+	 */
+	public final boolean isMatch() {
+		return fMatch;
+	}
+
+	/*
+	 * @see org.eclipse.cdt.internal.ui.text.spelling.engine.ISpellEvent#isStart()
+	 */
+	public final boolean isStart() {
+		return fSentence;
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/EditorUtility.java

@@ -400,15 +400,20 @@ public class EditorUtility {
 		if (page != null) {
 			IEditorPart part= page.getActiveEditor();
 			if (part != null) {
-				IEditorInput editorInput= part.getEditorInput();
-				if (editorInput != null) {
-					return (ICElement)editorInput.getAdapter(ICElement.class);
-				}
+				return getEditorInputCElement(part);
 			}
 		}
 		return null;    
 	}
 
+	public static ICElement getEditorInputCElement(IEditorPart part) {
+		IEditorInput editorInput= part.getEditorInput();
+		if (editorInput == null) {
+			return null;
+		}
+		return (ICElement) editorInput.getAdapter(ICElement.class);
+	}
+        
 	/** 
 	 * Gets the working copy of an compilation unit opened in an editor
 	 * 

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/ISelectionListenerWithAST.java

@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.viewsupport;
+
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.ui.IEditorPart;
+
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+
+/**
+ * Listener to be informed on text selection changes in an editor (post selection), including the corresponding AST.
+ * The AST is shared and must not be modified.
+ * Listeners can be registered in a <code>SelectionListenerWithASTManager</code>.
+ */
+public interface ISelectionListenerWithAST {
+	
+	/**
+	 * Called when a selection has changed. The method is called in a post selection event in an background
+	 * thread.
+	 * 
+	 * @param part The editor part in which the selection change has occurred.
+	 * @param selection The new text selection
+	 * @param astRoot The AST tree corresponding to the editor's input. This AST is shared and must
+	 * not be modified.
+	 */
+	void selectionChanged(IEditorPart part, ITextSelection selection, IASTTranslationUnit astRoot);
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java

@@ -0,0 +1,179 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.viewsupport;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.ListenerList;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.ui.ISelectionListener;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.model.ILanguage;
+import org.eclipse.cdt.core.model.IWorkingCopy;
+import org.eclipse.cdt.ui.CUIPlugin;
+
+import org.eclipse.cdt.internal.core.model.ASTCache.ASTRunnable;
+
+import org.eclipse.cdt.internal.ui.editor.ASTProvider;
+
+/**
+ * Infrastructure to share an AST for editor post selection listeners.
+ */
+public class SelectionListenerWithASTManager {
+	private static SelectionListenerWithASTManager fgDefault;
+	
+	/**
+	 * @return Returns the default manager instance.
+	 */
+	public static SelectionListenerWithASTManager getDefault() {
+		if (fgDefault == null) {
+			fgDefault= new SelectionListenerWithASTManager();
+		}
+		return fgDefault;
+	}
+	
+	
+	private final static class PartListenerGroup {
+		private ITextEditor fPart;
+		private ISelectionListener fPostSelectionListener;
+		private ISelectionChangedListener fSelectionListener;
+		private Job fCurrentJob;
+		private ListenerList fAstListeners;
+		
+		public PartListenerGroup(ITextEditor editorPart) {
+			fPart= editorPart;
+			fCurrentJob= null;
+			fAstListeners= new ListenerList(ListenerList.IDENTITY);
+			
+			fSelectionListener= new ISelectionChangedListener() {
+				public void selectionChanged(SelectionChangedEvent event) {
+					ISelection selection= event.getSelection();
+					if (selection instanceof ITextSelection) {
+						fireSelectionChanged((ITextSelection) selection);
+					}
+				}
+			};
+			
+			fPostSelectionListener= new ISelectionListener() {
+				public void selectionChanged(IWorkbenchPart part, ISelection selection) {
+					if (part == fPart && selection instanceof ITextSelection)
+						firePostSelectionChanged((ITextSelection) selection);
+				}
+			};
+		}
+
+		public boolean isEmpty() {
+			return fAstListeners.isEmpty();
+		}
+
+		public void install(ISelectionListenerWithAST listener) {
+			if (isEmpty()) {
+				fPart.getEditorSite().getPage().addPostSelectionListener(fPostSelectionListener);
+				ISelectionProvider selectionProvider= fPart.getSelectionProvider();
+				if (selectionProvider != null)
+						selectionProvider.addSelectionChangedListener(fSelectionListener);
+			}
+			fAstListeners.add(listener);
+		}
+		
+		public void uninstall(ISelectionListenerWithAST listener) {
+			fAstListeners.remove(listener);
+			if (isEmpty()) {
+				fPart.getEditorSite().getPage().removePostSelectionListener(fPostSelectionListener);
+				ISelectionProvider selectionProvider= fPart.getSelectionProvider();
+				if (selectionProvider != null)
+					selectionProvider.removeSelectionChangedListener(fSelectionListener);
+			}
+		}
+		
+		public void fireSelectionChanged(final ITextSelection selection) {
+			if (fCurrentJob != null) {
+				fCurrentJob.cancel();
+			}
+		}
+		
+		public void firePostSelectionChanged(final ITextSelection selection) {
+			if (fCurrentJob != null) {
+				fCurrentJob.cancel();
+			}
+			
+			IWorkingCopy workingCopy = CUIPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(fPart.getEditorInput());
+			if (workingCopy == null)
+				return;
+			
+			ASTProvider.getASTProvider().runOnAST(workingCopy, ASTProvider.WAIT_YES, null, new ASTRunnable() {
+				public IStatus runOnAST(ILanguage lang, IASTTranslationUnit astRoot) {
+					if (astRoot != null) {
+						Object[] listeners;
+						synchronized (PartListenerGroup.this) {
+							listeners= fAstListeners.getListeners();
+						}
+						for (int i= 0; i < listeners.length; i++) {
+							((ISelectionListenerWithAST) listeners[i]).selectionChanged(fPart, selection, astRoot);
+						}
+					}
+					return Status.OK_STATUS;
+				}
+			});
+		}
+	}
+	
+		
+	private Map fListenerGroups;
+	
+	private SelectionListenerWithASTManager() {
+		fListenerGroups= new HashMap();
+	}
+	
+	/**
+	 * Registers a selection listener for the given editor part.
+	 * @param part The editor part to listen to.
+	 * @param listener The listener to register.
+	 */
+	public void addListener(ITextEditor part, ISelectionListenerWithAST listener) {
+		synchronized (this) {
+			PartListenerGroup partListener= (PartListenerGroup) fListenerGroups.get(part);
+			if (partListener == null) {
+				partListener= new PartListenerGroup(part);
+				fListenerGroups.put(part, partListener);
+			}
+			partListener.install(listener);
+		}
+	}
+
+	/**
+	 * Unregisters a selection listener.
+	 * @param part The editor part the listener was registered.
+	 * @param listener The listener to unregister.
+	 */
+	public void removeListener(ITextEditor part, ISelectionListenerWithAST listener) {
+		synchronized (this) {
+			PartListenerGroup partListener= (PartListenerGroup) fListenerGroups.get(part);
+			if (partListener != null) {
+				partListener.uninstall(listener);
+				if (partListener.isEmpty()) {
+					fListenerGroups.remove(part);
+				}
+			}
+		}
+	}
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/PreferenceConstants.java

@@ -9,17 +9,24 @@
  *     IBM Corporation - initial API and implementation
  *     QNX Software System
  *     Anton Leherbauer (Wind River Systems)
+ * 	   Sergey Prigogin (Google)
  *******************************************************************************/
 package org.eclipse.cdt.ui;
 
+import java.util.Locale;
+
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.preference.PreferenceConverter;
+import org.eclipse.jface.resource.ColorRegistry;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.RGB;
+import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
 
+import org.eclipse.cdt.internal.ui.ICThemeConstants;
 import org.eclipse.cdt.internal.ui.text.ICColorConstants;
+import org.eclipse.cdt.internal.ui.text.spelling.SpellCheckEngine;
 
 /**
  * Preference constants used in the CDT-UI preference store. Clients should only read the
@@ -972,6 +979,198 @@ public class PreferenceConstants {
 	 */
 	public static final String EDITOR_SEMANTIC_HIGHLIGHTING_ENABLED= "semanticHighlighting.enabled"; //$NON-NLS-1$
 
+	/**
+	 * A named preference that controls if quick assist light bulbs are shown.
+	 * <p>
+	 * Value is of type <code>Boolean</code>: if <code>true</code> light bulbs are shown
+	 * for quick assists.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public static final String EDITOR_QUICKASSIST_LIGHTBULB="org.eclipse.cdt.quickassist.lightbulb"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that holds the background color used in the code assist selection dialog.
+	 * <p>
+	 * Value is of type <code>String</code>. A RGB color value encoded as a string
+	 * using class <code>PreferenceConverter</code>
+	 * </p>
+	 * 
+	 * @see org.eclipse.jface.resource.StringConverter
+	 * @see org.eclipse.jface.preference.PreferenceConverter
+	 * 
+	 * @since 5.0
+	 */
+	public final static String CODEASSIST_PROPOSALS_BACKGROUND= "content_assist_proposals_background"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that holds the foreground color used in the code assist selection dialog.
+	 * <p>
+	 * Value is of type <code>String</code>. A RGB color value encoded as a string
+	 * using class <code>PreferenceConverter</code>
+	 * </p>
+	 * 
+	 * @see org.eclipse.jface.resource.StringConverter
+	 * @see org.eclipse.jface.preference.PreferenceConverter
+	 * 
+	 * @since 5.0
+	 */
+	public final static String CODEASSIST_PROPOSALS_FOREGROUND= "content_assist_proposals_foreground"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls whether words containing digits should
+	 * be skipped during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_DIGITS= "spelling_ignore_digits"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls whether mixed case words should be
+	 * skipped during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_MIXED= "spelling_ignore_mixed"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls whether sentence capitalization should
+	 * be ignored during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_SENTENCE= "spelling_ignore_sentence"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls whether upper case words should be
+	 * skipped during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_UPPER= "spelling_ignore_upper"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls whether URLs should be ignored during
+	 * spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_URLS= "spelling_ignore_urls"; //$NON-NLS-1$
+	
+	/**
+	 * A named preference that controls whether single letters
+	 * should be ignored during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_SINGLE_LETTERS= "spelling_ignore_single_letters"; //$NON-NLS-1$
+	
+	/**
+	 * A named preference that controls whether string literals
+	 * should be ignored during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_STRING_LITERALS= "spelling_ignore_string_literals"; //$NON-NLS-1$
+	
+	/**
+	 * A named preference that controls whether non-letters at word boundaries
+	 * should be ignored during spell checking.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_IGNORE_NON_LETTERS= "spelling_ignore_non_letters"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls the locale used for spell checking.
+	 * <p>
+	 * Value is of type <code>String</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_LOCALE= "spelling_locale"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls the number of proposals offered during
+	 * spell checking.
+	 * <p>
+	 * Value is of type <code>Integer</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_PROPOSAL_THRESHOLD= "spelling_proposal_threshold"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that controls the maximum number of problems reported
+	 * during spell checking.
+	 * <p>
+	 * Value is of type <code>Integer</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_PROBLEMS_THRESHOLD= "spelling_problems_threshold"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that specifies the workspace user dictionary.
+	 * <p>
+	 * Value is of type <code>Integer</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_USER_DICTIONARY= "spelling_user_dictionary"; //$NON-NLS-1$
+	
+	/**
+	 * A named preference that specifies encoding of the workspace user dictionary.
+	 * <p>
+	 * Value is of type <code>String</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_USER_DICTIONARY_ENCODING= "spelling_user_dictionary_encoding"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that specifies whether spelling dictionaries are available to content assist.
+	 * 
+	 * <strong>Note:</strong> This is currently not supported because the spelling engine
+	 * cannot return word proposals but only correction proposals.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 * 
+	 * @since 5.0
+	 */
+	public final static String SPELLING_ENABLE_CONTENTASSIST= "spelling_enable_contentassist"; //$NON-NLS-1$
+
 	/**
 	 * Returns the CDT-UI preference store.
 	 * 
@@ -987,13 +1186,15 @@ public class PreferenceConstants {
      * @param store the preference store to be initialized
      */
     public static void initializeDefaultValues(IPreferenceStore store) {
+		ColorRegistry registry= PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getColorRegistry();
 
 		store.setDefault(PreferenceConstants.EDITOR_CORRECTION_INDICATION, false);
 		store.setDefault(PreferenceConstants.EDITOR_SHOW_SEGMENTS, false);
 		store.setDefault(PreferenceConstants.PREF_SHOW_CU_CHILDREN, true);
 		
-		// Turned off by default since there are too many false reports right now 
-		store.setDefault(PreferenceConstants.EDITOR_EVALUATE_TEMPORARY_PROBLEMS, false);
+		// This option has to be turned on for the spelling checker too work.
+		// As of 4.0, it doesn't produce false positives any more. 
+		store.setDefault(PreferenceConstants.EDITOR_EVALUATE_TEMPORARY_PROBLEMS, true);
 		
 		int sourceHoverModifier= SWT.MOD2;
 		String sourceHoverModifierName= Action.findModifierString(sourceHoverModifier);	// Shift
@@ -1088,5 +1289,81 @@ public class PreferenceConstants {
 		// content assist
 		store.setDefault(PreferenceConstants.CODEASSIST_EXCLUDED_CATEGORIES, "org.eclipse.cdt.ui.textProposalCategory\0"); //$NON-NLS-1$
 		store.setDefault(PreferenceConstants.CODEASSIST_CATEGORY_ORDER, "org.eclipse.cdt.ui.parserProposalCategory:65539\0org.eclipse.cdt.ui.textProposalCategory:65541\0org.eclipse.cdt.ui.templateProposalCategory:2\0"); //$NON-NLS-1$
+		
+		setDefaultAndFireEvent(
+				store,
+				PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, 
+				findRGB(registry, ICThemeConstants.CODEASSIST_PROPOSALS_BACKGROUND, new RGB(255, 255, 255)));
+		setDefaultAndFireEvent(
+				store,
+				PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, 
+				findRGB(registry, ICThemeConstants.CODEASSIST_PROPOSALS_FOREGROUND, new RGB(0, 0, 0)));
+		
+		// spell checking
+		store.setDefault(PreferenceConstants.SPELLING_LOCALE, "en_US"); //$NON-NLS-1$
+		String isInitializedKey= "spelling_locale_initialized"; //$NON-NLS-1$
+		if (!store.getBoolean(isInitializedKey)) {
+			store.setValue(isInitializedKey, true);
+			Locale locale= SpellCheckEngine.getDefaultLocale();
+			locale= SpellCheckEngine.findClosestLocale(locale);
+			if (locale != null)
+				store.setValue(PreferenceConstants.SPELLING_LOCALE, locale.toString());
+		}
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_DIGITS, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_MIXED, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_SENTENCE, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_UPPER, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_URLS, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_SINGLE_LETTERS, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_STRING_LITERALS, true);
+		store.setDefault(PreferenceConstants.SPELLING_IGNORE_NON_LETTERS, true);
+		store.setDefault(PreferenceConstants.SPELLING_USER_DICTIONARY, ""); //$NON-NLS-1$
+		
+		// Note: For backwards compatibility we must use the property and not the workspace default
+		store.setDefault(PreferenceConstants.SPELLING_USER_DICTIONARY_ENCODING, System.getProperty("file.encoding")); //$NON-NLS-1$
+		
+		store.setDefault(PreferenceConstants.SPELLING_PROPOSAL_THRESHOLD, 20);
+		store.setDefault(PreferenceConstants.SPELLING_PROBLEMS_THRESHOLD, 100);
+		/*
+		 * XXX: This is currently disabled because the spelling engine
+		 * cannot return word proposals but only correction proposals.
+		 */
+		store.setToDefault(PreferenceConstants.SPELLING_ENABLE_CONTENTASSIST);
     }
+    
+	/**
+	 * Sets the default value and fires a property
+	 * change event if necessary.
+	 * 
+	 * @param store	the preference store
+	 * @param key the preference key
+	 * @param newValue the new value
+	 * @since 5.0
+	 */
+	private static void setDefaultAndFireEvent(IPreferenceStore store, String key, RGB newValue) {
+		RGB oldValue= null;
+		if (store.isDefault(key))
+			oldValue= PreferenceConverter.getDefaultColor(store, key);
+		
+		PreferenceConverter.setDefault(store, key, newValue);
+		
+		if (oldValue != null && !oldValue.equals(newValue))
+			store.firePropertyChangeEvent(key, oldValue, newValue);
+	}
+
+	/**
+	 * Returns the RGB for the given key in the given color registry.
+	 * 
+	 * @param registry the color registry
+	 * @param key the key for the constant in the registry
+	 * @param defaultRGB the default RGB if no entry is found
+	 * @return RGB the RGB
+	 * @since 5.0
+	 */
+	private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
+		RGB rgb= registry.getRGB(key);
+		if (rgb != null)
+			return rgb;
+		return defaultRGB;
+	}
 }

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/text/IInvocationContext.java

@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.ui.text;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+
+/**
+ * Context information for quick fix and quick assist processors.
+ * <p>
+ * Note: this interface is not intended to be implemented.
+ * </p>
+ */
+public interface IInvocationContext {
+	/**
+	 * @return Returns the offset of the current selection
+	 */
+	int getSelectionOffset();
+
+	/**
+	 * @return Returns the length of the current selection
+	 */
+	int getSelectionLength();
+	
+	/**
+	 * @return ITranslationUnit or null
+	 */
+	ITranslationUnit getTranslationUnit();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/text/IProblemLocation.java

@@ -0,0 +1,58 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.ui.text;
+
+/**
+ * Problem information for quick fix and quick assist processors.
+ */
+public interface IProblemLocation {
+	/**
+	 * Returns the start offset of the problem.
+	 *
+	 * @return the start offset of the problem
+	 */
+	int getOffset();
+
+	/**
+	 * Returns the length of the problem.
+	 *
+	 * @return the length of the problem
+	 */
+	int getLength();
+
+	/**
+	 * Returns the marker type of this problem.
+	 *
+	 * @return The marker type of the problem.
+	 */
+	String getMarkerType();
+	
+	/**
+	 * Returns the id of problem. Note that problem ids are defined per problem marker type.
+	 *
+	 * @return The id of the problem.
+	 */
+	int getProblemId();
+
+	/**
+	 * Returns the original arguments recorded into the problem.
+	 *
+	 * @return String[] Returns the problem arguments.
+	 */
+	String[] getProblemArguments();
+
+	/**
+	 * Returns if the problem has error severity.
+	 *
+	 * @return <code>true</code> if the problem has error severity
+	 */
+	boolean isError();
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/text/IQuickFixProcessor.java

@@ -0,0 +1,47 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *
+ *******************************************************************************/
+package org.eclipse.cdt.ui.text;
+
+import org.eclipse.core.runtime.CoreException;
+
+import org.eclipse.cdt.core.model.ITranslationUnit;
+
+/**
+ * Interface to be implemented by contributors to the extension point
+ * <code>org.eclipse.cdt.ui.quickFixProcessors</code>.
+ * 
+ * @since 5.0
+ */
+public interface IQuickFixProcessor {
+	/**
+	 * Returns <code>true</code> if the processor has proposals for the given problem. This test should be an
+	 * optimistic guess and be very cheap.
+	 *
+	 * @param unit the compilation unit
+	 * @param problemId the problem Id. The id is of a problem of the problem type(s) this processor specified in
+	 * the extension point.
+	 * @return <code>true</code> if the processor has proposals for the given problem
+	 */
+	boolean hasCorrections(ITranslationUnit unit, int problemId);
+
+	/**
+	 * Collects corrections or code manipulations for the given context.
+	 *
+	 * @param context Defines current compilation unit, position and a shared AST
+	 * @param locations Problems are the current location.
+	 * @return the corrections applicable at the location or <code>null</code> if no proposals
+	 * 			can be offered
+	 * @throws CoreException CoreException can be thrown if the operation fails
+	 */
+	ICCompletionProposal[] getCorrections(IInvocationContext context,
+			IProblemLocation[] locations) throws CoreException;
+}