Examples with IDOMNode org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode used on opensource projects

Example 51 with IDOMNode

use of org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode in project webtools.sourceediting by eclipse.

the class JSPElementNodeCleanupHandler method cleanup.

public Node cleanup(Node node) {
    /* <jsp:root> should cleanup its descendant nodes */
    if (node instanceof IDOMNode) {
        IStructuredDocumentRegion region = ((IDOMNode) node).getFirstStructuredDocumentRegion();
        String regionType = region.getType();
        if (JSP_ROOT_TAG_NAME.equals(regionType))
            return super.cleanup(node);
        else if (JSP_DIRECTIVE_NAME.equals(regionType)) {
            IDOMNode renamedNode = (IDOMNode) cleanupChildren(node);
            return quoteAttrValue(renamedNode);
        }
    }
    return node;
}

Example 52 with IDOMNode

use of org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode in project webtools.sourceediting by eclipse.

the class ShowTranslationHandler method execute.

/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands
	 * .ExecutionEvent)
	 */
public Object execute(final ExecutionEvent event) throws ExecutionException {
    ISelection selection = HandlerUtil.getCurrentSelection(event);
    if (selection instanceof IStructuredSelection) {
        List list = ((IStructuredSelection) selection).toList();
        if (!list.isEmpty()) {
            if (list.get(0) instanceof IDOMNode) {
                final IDOMModel model = ((IDOMNode) list.get(0)).getModel();
                INodeAdapter adapter = model.getDocument().getAdapterFor(IJSPTranslation.class);
                if (adapter != null) {
                    Job opener = new UIJob("Opening JSP Java Translation") {

                        public IStatus runInUIThread(IProgressMonitor monitor) {
                            JSPTranslationAdapter translationAdapter = (JSPTranslationAdapter) model.getDocument().getAdapterFor(IJSPTranslation.class);
                            final JSPTranslationExtension translation = translationAdapter.getJSPTranslation();
                            // create an IEditorInput for the Java editor
                            final IStorageEditorInput input = new JSPTranslationEditorInput(model);
                            try {
                                IEditorPart editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), input, JavaUI.ID_CU_EDITOR, true);
                                // Now add the problems we found
                                if (editor instanceof ITextEditor) {
                                    IAnnotationModel annotationModel = ((ITextEditor) editor).getDocumentProvider().getAnnotationModel(input);
                                    translation.reconcileCompilationUnit();
                                    List problemsList = translation.getProblems();
                                    IProblem[] problems = (IProblem[]) problemsList.toArray(new IProblem[problemsList.size()]);
                                    AnnotationTypeLookup lookup = new AnnotationTypeLookup();
                                    for (int i = 0; i < problems.length; i++) {
                                        if (problems[i] instanceof IJSPProblem)
                                            continue;
                                        int length = problems[i].getSourceEnd() - problems[i].getSourceStart() + 1;
                                        Position position = new Position(problems[i].getSourceStart(), length);
                                        Annotation annotation = null;
                                        String type = lookup.getAnnotationType(IMarker.PROBLEM, IMarker.SEVERITY_INFO);
                                        if (problems[i].isError()) {
                                            type = lookup.getAnnotationType(IMarker.PROBLEM, IMarker.SEVERITY_ERROR);
                                        } else if (problems[i].isWarning()) {
                                            type = lookup.getAnnotationType(IMarker.PROBLEM, IMarker.SEVERITY_WARNING);
                                        }
                                        annotation = new Annotation(type, false, problems[i].getMessage());
                                        if (annotation != null) {
                                            annotationModel.addAnnotation(annotation, position);
                                        }
                                    }
                                }
                            } catch (PartInitException e) {
                                e.printStackTrace();
                                Display.getCurrent().beep();
                            }
                            return Status.OK_STATUS;
                        }
                    };
                    opener.setSystem(false);
                    opener.setUser(true);
                    opener.schedule();
                }
            }
        }
    }
    return null;
}

Example 53 with IDOMNode

use of org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode in project webtools.sourceediting by eclipse.

the class JSPPropertyCompletionProposalComputer method addAttributeValueProposals.

/**
 * @see org.eclipse.wst.xml.ui.internal.contentassist.DefaultXMLCompletionProposalComputer#addAttributeValueProposals(org.eclipse.wst.xml.ui.internal.contentassist.ContentAssistRequest, org.eclipse.wst.sse.ui.contentassist.CompletionProposalInvocationContext)
 */
protected void addAttributeValueProposals(ContentAssistRequest contentAssistRequest, CompletionProposalInvocationContext context) {
    IDOMNode node = (IDOMNode) contentAssistRequest.getNode();
    // only add attribute value proposals for specific elements
    if (node.getNodeName().equals(JSP11Namespace.ElementName.SETPROPERTY) || node.getNodeName().equals(JSP11Namespace.ElementName.GETPROPERTY)) {
        // Find the attribute name for which this position should have a value
        IStructuredDocumentRegion open = node.getFirstStructuredDocumentRegion();
        ITextRegionList openRegions = open.getRegions();
        int i = openRegions.indexOf(contentAssistRequest.getRegion());
        if (i < 0)
            return;
        // get the attribute in question (first attr name to the left of the cursor)
        ITextRegion attrNameRegion = null;
        String attributeName = null;
        while (i >= 0) {
            attrNameRegion = openRegions.get(i--);
            if (attrNameRegion.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME)
                break;
        }
        if (attrNameRegion != null)
            attributeName = open.getText(attrNameRegion);
        // determine get or set
        ITextRegion tagNameRegion = null;
        boolean isGetProperty = true;
        for (int j = 0; j < openRegions.size(); j++) {
            tagNameRegion = openRegions.get(j);
            if (tagNameRegion.getType() == DOMRegionContext.XML_TAG_NAME && open.getText(tagNameRegion).trim().equals("jsp:setProperty")) {
                // $NON-NLS-1$
                isGetProperty = false;
                break;
            }
        }
        String currentValue = null;
        if (contentAssistRequest.getRegion().getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE)
            currentValue = contentAssistRequest.getText();
        else
            // $NON-NLS-1$
            currentValue = "";
        String matchString = null;
        // fixups since the matchString computations don't care if there are quotes around the value
        if (currentValue.length() > StringUtils.strip(currentValue).length() && // $NON-NLS-1$ //$NON-NLS-2$
        (currentValue.startsWith("\"") || currentValue.startsWith("'")) && contentAssistRequest.getMatchString().length() > 0) {
            matchString = currentValue.substring(1, contentAssistRequest.getMatchString().length());
        } else {
            matchString = currentValue.substring(0, contentAssistRequest.getMatchString().length());
        }
        // for now we ignore complicated values such as jsp embedded in an attribute
        boolean existingComplicatedValue = contentAssistRequest.getRegion() != null && contentAssistRequest.getRegion() instanceof ITextRegionContainer;
        if (existingComplicatedValue) {
            contentAssistRequest.getProposals().clear();
            contentAssistRequest.getMacros().clear();
        } else {
            if (attributeName.equals(JSP11Namespace.ATTR_NAME_NAME)) {
                addBeanNameProposals(contentAssistRequest, node, matchString);
            } else if (attributeName.equals(JSP11Namespace.ATTR_NAME_PROPERTY)) {
                addBeanPropertyProposals(contentAssistRequest, node, isGetProperty, matchString);
            }
        }
    }
}

Example 54 with IDOMNode

use of org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode in project webtools.sourceediting by eclipse.

the class JSPTaglibCompletionProposalComputer method addAttributeValueProposals.

/**
 * @see org.eclipse.wst.xml.ui.internal.contentassist.DefaultXMLCompletionProposalComputer#addAttributeValueProposals(org.eclipse.wst.xml.ui.internal.contentassist.ContentAssistRequest, org.eclipse.wst.sse.ui.contentassist.CompletionProposalInvocationContext)
 */
protected void addAttributeValueProposals(ContentAssistRequest contentAssistRequest, CompletionProposalInvocationContext context) {
    IPath basePath = getBasePath(contentAssistRequest);
    if (basePath != null) {
        IDOMNode node = (IDOMNode) contentAssistRequest.getNode();
        // only add attribute value proposals for specific elements
        if (node.getNodeName().equals(JSP11Namespace.ElementName.DIRECTIVE_TAGLIB)) {
            // Find the attribute name for which this position should have a value
            IStructuredDocumentRegion open = node.getFirstStructuredDocumentRegion();
            ITextRegionList openRegions = open.getRegions();
            int i = openRegions.indexOf(contentAssistRequest.getRegion());
            if (i < 0)
                return;
            ITextRegion nameRegion = null;
            while (i >= 0) {
                nameRegion = openRegions.get(i--);
                if (nameRegion.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME)
                    break;
            }
            String attributeName = null;
            if (nameRegion != null)
                attributeName = open.getText(nameRegion);
            String currentValue = null;
            if (contentAssistRequest.getRegion().getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE)
                currentValue = contentAssistRequest.getText();
            else
                // $NON-NLS-1$
                currentValue = "";
            String matchString = null;
            // fixups
            int start = contentAssistRequest.getReplacementBeginPosition();
            int length = contentAssistRequest.getReplacementLength();
            if (currentValue.length() > StringUtils.strip(currentValue).length() && // $NON-NLS-1$ //$NON-NLS-2$
            (currentValue.startsWith("\"") || currentValue.startsWith("'")) && contentAssistRequest.getMatchString().length() > 0) {
                matchString = currentValue.substring(1, contentAssistRequest.getMatchString().length());
            } else {
                matchString = currentValue.substring(0, contentAssistRequest.getMatchString().length());
            }
            boolean existingComplicatedValue = contentAssistRequest.getRegion() != null && contentAssistRequest.getRegion() instanceof ITextRegionContainer;
            if (existingComplicatedValue) {
                contentAssistRequest.getProposals().clear();
                contentAssistRequest.getMacros().clear();
            } else {
                String lowerCaseMatch = matchString.toLowerCase(Locale.US);
                if (attributeName.equals(JSP11Namespace.ATTR_NAME_URI)) {
                    ITaglibRecord[] availableTaglibRecords = TaglibIndex.getAvailableTaglibRecords(basePath);
                    /*
						 * a simple enough way to remove duplicates (resolution at
						 * runtime would be nondeterministic anyway)
						 */
                    Map uriToRecords = new HashMap();
                    for (int taglibRecordNumber = 0; taglibRecordNumber < availableTaglibRecords.length; taglibRecordNumber++) {
                        ITaglibRecord taglibRecord = availableTaglibRecords[taglibRecordNumber];
                        ITaglibDescriptor descriptor = taglibRecord.getDescriptor();
                        String uri = null;
                        switch(taglibRecord.getRecordType()) {
                            case ITaglibRecord.URL:
                                uri = descriptor.getURI();
                                uriToRecords.put(uri, taglibRecord);
                                break;
                            case ITaglibRecord.JAR:
                                {
                                    IPath location = ((IJarRecord) taglibRecord).getLocation();
                                    IFile[] files = ResourcesPlugin.getWorkspace().getRoot().findFilesForLocation(location);
                                    IPath localContextRoot = FacetModuleCoreSupport.computeWebContentRootPath(basePath);
                                    for (int fileNumber = 0; fileNumber < files.length; fileNumber++) {
                                        if (localContextRoot.isPrefixOf(files[fileNumber].getFullPath())) {
                                            uri = IPath.SEPARATOR + files[fileNumber].getFullPath().removeFirstSegments(localContextRoot.segmentCount()).toString();
                                            uriToRecords.put(uri, taglibRecord);
                                        } else {
                                            uri = FacetModuleCoreSupport.getRuntimePath(files[fileNumber].getFullPath()).toString();
                                            uriToRecords.put(uri, taglibRecord);
                                        }
                                    }
                                    break;
                                }
                            case ITaglibRecord.TLD:
                                {
                                    uri = descriptor.getURI();
                                    if (uri == null || uri.trim().length() == 0) {
                                        IPath path = ((ITLDRecord) taglibRecord).getPath();
                                        IPath localContextRoot = FacetModuleCoreSupport.computeWebContentRootPath(basePath);
                                        if (localContextRoot.isPrefixOf(path)) {
                                            uri = IPath.SEPARATOR + path.removeFirstSegments(localContextRoot.segmentCount()).toString();
                                        } else {
                                            uri = FacetModuleCoreSupport.getRuntimePath(path).toString();
                                        }
                                    }
                                    uriToRecords.put(uri, taglibRecord);
                                    break;
                                }
                        }
                    }
                    /*
						 * use the records and their descriptors to construct
						 * proposals
						 */
                    Object[] uris = uriToRecords.keySet().toArray();
                    for (int uriNumber = 0; uriNumber < uris.length; uriNumber++) {
                        String uri = uris[uriNumber].toString();
                        ITaglibRecord taglibRecord = (ITaglibRecord) uriToRecords.get(uri);
                        ITaglibDescriptor descriptor = (taglibRecord).getDescriptor();
                        if (uri != null && uri.length() > 0 && (matchString.length() == 0 || uri.toLowerCase(Locale.US).startsWith(lowerCaseMatch))) {
                            String url = getSmallImageURL(taglibRecord);
                            ImageDescriptor imageDescriptor = JSPUIPlugin.getInstance().getImageRegistry().getDescriptor(url);
                            if (imageDescriptor == null && url != null) {
                                URL imageURL;
                                try {
                                    imageURL = new URL(url);
                                    imageDescriptor = ImageDescriptor.createFromURL(imageURL);
                                    JSPUIPlugin.getInstance().getImageRegistry().put(url, imageDescriptor);
                                } catch (MalformedURLException e) {
                                    Logger.logException(e);
                                }
                            }
                            String additionalInfo = // $NON-NLS-1$
                            descriptor.getDisplayName() + "<br/>" + descriptor.getDescription() + "<br/>" + // $NON-NLS-1$
                            descriptor.getTlibVersion();
                            Image image = null;
                            try {
                                image = JSPUIPlugin.getInstance().getImageRegistry().get(url);
                            } catch (Exception e) {
                                Logger.logException(e);
                            }
                            if (image == null) {
                                image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ATTRIBUTE);
                            }
                            CustomCompletionProposal proposal = new CustomCompletionProposal(// $NON-NLS-1$ //$NON-NLS-2$
                            "\"" + uri + "\"", // $NON-NLS-1$ //$NON-NLS-2$
                            start, // $NON-NLS-1$ //$NON-NLS-2$
                            length, // $NON-NLS-1$ //$NON-NLS-2$
                            uri.length() + 2, image, uri, null, additionalInfo, IRelevanceConstants.R_NONE);
                            contentAssistRequest.addProposal(proposal);
                        }
                    }
                } else if (attributeName.equals(JSP20Namespace.ATTR_NAME_TAGDIR)) {
                    ITaglibRecord[] availableTaglibRecords = TaglibIndex.getAvailableTaglibRecords(basePath);
                    /*
						 * a simple enough way to remove duplicates (resolution at
						 * runtime would be nondeterministic anyway)
						 */
                    Map uriToRecords = new HashMap();
                    IPath localContextRoot = FacetModuleCoreSupport.computeWebContentRootPath(basePath);
                    for (int taglibRecordNumber = 0; taglibRecordNumber < availableTaglibRecords.length; taglibRecordNumber++) {
                        ITaglibRecord taglibRecord = availableTaglibRecords[taglibRecordNumber];
                        String uri = null;
                        if (taglibRecord.getRecordType() == ITaglibRecord.TAGDIR) {
                            IPath path = ((ITagDirRecord) taglibRecord).getPath();
                            if (localContextRoot.isPrefixOf(path)) {
                                uri = IPath.SEPARATOR + path.removeFirstSegments(localContextRoot.segmentCount()).toString();
                                uriToRecords.put(uri, taglibRecord);
                            }
                        }
                    }
                    /*
						 * use the records and their descriptors to construct
						 * proposals
						 */
                    Object[] uris = uriToRecords.keySet().toArray();
                    for (int uriNumber = 0; uriNumber < uris.length; uriNumber++) {
                        String uri = uris[uriNumber].toString();
                        ITaglibRecord taglibRecord = (ITaglibRecord) uriToRecords.get(uri);
                        ITaglibDescriptor descriptor = (taglibRecord).getDescriptor();
                        if (uri != null && uri.length() > 0 && (matchString.length() == 0 || uri.toLowerCase(Locale.US).startsWith(lowerCaseMatch))) {
                            String url = getSmallImageURL(taglibRecord);
                            ImageDescriptor imageDescriptor = null;
                            if (url != null) {
                                imageDescriptor = JSPUIPlugin.getInstance().getImageRegistry().getDescriptor(url);
                            }
                            if (imageDescriptor == null && url != null) {
                                URL imageURL;
                                try {
                                    imageURL = new URL(url);
                                    imageDescriptor = ImageDescriptor.createFromURL(imageURL);
                                    JSPUIPlugin.getInstance().getImageRegistry().put(url, imageDescriptor);
                                } catch (MalformedURLException e) {
                                    Logger.logException(e);
                                }
                            }
                            // $NON-NLS-1$
                            String additionalInfo = descriptor.getDescription() + "<br/>" + descriptor.getTlibVersion();
                            Image image = null;
                            try {
                                image = JSPUIPlugin.getInstance().getImageRegistry().get(url);
                            } catch (Exception e) {
                                Logger.logException(e);
                            }
                            if (image == null) {
                                image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ATTRIBUTE);
                            }
                            CustomCompletionProposal proposal = new CustomCompletionProposal(// $NON-NLS-1$ //$NON-NLS-2$
                            "\"" + uri + "\"", // $NON-NLS-1$ //$NON-NLS-2$
                            start, // $NON-NLS-1$ //$NON-NLS-2$
                            length, // $NON-NLS-1$ //$NON-NLS-2$
                            uri.length() + 2, // $NON-NLS-1$ //$NON-NLS-2$
                            image, // $NON-NLS-1$ //$NON-NLS-2$
                            uri, null, additionalInfo, IRelevanceConstants.R_NONE);
                            contentAssistRequest.addProposal(proposal);
                        }
                    }
                } else if (attributeName.equals(JSP11Namespace.ATTR_NAME_PREFIX)) {
                    Node uriAttr = node.getAttributes().getNamedItem(JSP11Namespace.ATTR_NAME_URI);
                    String uri = null;
                    if (uriAttr != null) {
                        uri = uriAttr.getNodeValue();
                        ITaglibRecord[] availableTaglibRecords = TaglibIndex.getAvailableTaglibRecords(basePath);
                        Map prefixMap = new HashMap();
                        for (int taglibrecordNumber = 0; taglibrecordNumber < availableTaglibRecords.length; taglibrecordNumber++) {
                            ITaglibDescriptor descriptor = availableTaglibRecords[taglibrecordNumber].getDescriptor();
                            if (isTaglibForURI(uri, basePath, availableTaglibRecords[taglibrecordNumber])) {
                                String shortName = descriptor.getShortName().trim();
                                if (shortName.length() > 0) {
                                    boolean valid = true;
                                    for (int character = 0; character < shortName.length(); character++) {
                                        valid = valid && !Character.isWhitespace(shortName.charAt(character));
                                    }
                                    if (valid) {
                                        prefixMap.put(shortName, descriptor);
                                    }
                                }
                            }
                        }
                        Object[] prefixes = prefixMap.keySet().toArray();
                        for (int j = 0; j < prefixes.length; j++) {
                            String prefix = (String) prefixes[j];
                            ITaglibDescriptor descriptor = (ITaglibDescriptor) prefixMap.get(prefix);
                            Image image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ATTRIBUTE);
                            CustomCompletionProposal proposal = new CustomCompletionProposal(// $NON-NLS-1$ //$NON-NLS-2$
                            "\"" + prefix + "\"", // $NON-NLS-1$ //$NON-NLS-2$
                            start, // $NON-NLS-1$ //$NON-NLS-2$
                            length, // $NON-NLS-1$ //$NON-NLS-2$
                            prefix.length() + 2, // $NON-NLS-1$ //$NON-NLS-2$
                            image, prefix, null, descriptor.getDescription(), IRelevanceConstants.R_NONE);
                            contentAssistRequest.addProposal(proposal);
                        }
                    } else {
                        Node dirAttr = node.getAttributes().getNamedItem(JSP20Namespace.ATTR_NAME_TAGDIR);
                        if (dirAttr != null) {
                            String dir = dirAttr.getNodeValue();
                            if (dir != null) {
                                ITaglibRecord record = TaglibIndex.resolve(basePath.toString(), dir, false);
                                if (record != null) {
                                    ITaglibDescriptor descriptor = record.getDescriptor();
                                    if (descriptor != null) {
                                        String shortName = descriptor.getShortName();
                                        Image image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ATTRIBUTE);
                                        CustomCompletionProposal proposal = new CustomCompletionProposal(// $NON-NLS-1$ //$NON-NLS-2$
                                        "\"" + shortName + "\"", // $NON-NLS-1$ //$NON-NLS-2$
                                        start, // $NON-NLS-1$ //$NON-NLS-2$
                                        length, // $NON-NLS-1$ //$NON-NLS-2$
                                        shortName.length() + 2, image, shortName, null, descriptor.getDescription(), IRelevanceConstants.R_NONE);
                                        contentAssistRequest.addProposal(proposal);
                                    } else {
                                        if (dir.startsWith("/WEB-INF/")) {
                                            // $NON-NLS-1$
                                            dir = dir.substring(9);
                                        }
                                        // $NON-NLS-1$ //$NON-NLS-2$
                                        String prefix = StringUtils.replace(dir, "/", "-");
                                        Image image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ATTRIBUTE);
                                        CustomCompletionProposal proposal = new CustomCompletionProposal(// $NON-NLS-1$ //$NON-NLS-2$
                                        "\"" + prefix + "\"", // $NON-NLS-1$ //$NON-NLS-2$
                                        start, // $NON-NLS-1$ //$NON-NLS-2$
                                        length, // $NON-NLS-1$ //$NON-NLS-2$
                                        prefix.length() + 2, image, prefix, null, null, IRelevanceConstants.R_NONE);
                                        contentAssistRequest.addProposal(proposal);
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 55 with IDOMNode

use of org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode in project webtools.sourceediting by eclipse.

the class JSPTemplateCompletionProcessor method computeCompletionProposals.

/*
	 * Copied from super class except instead of calling createContext(viewer,
	 * region) call createContext(viewer, region, offset) instead
	 */
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) {
    ITextSelection selection = (ITextSelection) viewer.getSelectionProvider().getSelection();
    // adjust offset to end of normalized selection
    if (selection.getOffset() == offset)
        offset = selection.getOffset() + selection.getLength();
    String prefix = extractPrefix(viewer, offset);
    Region region = new Region(offset - prefix.length(), prefix.length());
    // If there's no prefix, check if we're in a tag open region
    if (prefix.trim().length() == 0) {
        IndexedRegion treeNode = ContentAssistUtils.getNodeAt(viewer, offset);
        if (treeNode instanceof IDOMText) {
            IDOMNode node = (IDOMNode) treeNode;
            // Check each region in the node, if the offset is after a tag region, replace it with the template
            IStructuredDocumentRegion cursor = node.getFirstStructuredDocumentRegion();
            IStructuredDocumentRegion end = node.getLastStructuredDocumentRegion();
            do {
                if (cursor != null && DOMRegionContext.XML_TAG_OPEN.equals(cursor.getType()) && cursor.getStartOffset() == offset - 1) {
                    // We have a tag to replace
                    offset = cursor.getStartOffset();
                    region = new Region(cursor.getStartOffset(), cursor.getLength());
                    break;
                }
            } while (cursor != end && (cursor = cursor.getNext()) != null);
        }
    }
    TemplateContext context = createContext(viewer, region, offset);
    if (context == null)
        return new ICompletionProposal[0];
    // name of the selection variables {line, word}_selection
    // //$NON-NLS-1$
    context.setVariable("selection", selection.getText());
    Template[] templates = getTemplates(context.getContextType().getId());
    List matches = new ArrayList();
    for (int i = 0; i < templates.length; i++) {
        Template template = templates[i];
        try {
            context.getContextType().validate(template.getPattern());
        } catch (TemplateException e) {
            continue;
        }
        if (template.matches(prefix, context.getContextType().getId()))
            matches.add(createProposal(template, context, (IRegion) region, getRelevance(template, prefix)));
    }
    Collections.sort(matches, fgProposalComparator);
    return (ICompletionProposal[]) matches.toArray(new ICompletionProposal[matches.size()]);
}