Examples of org.eclipse.jface.text.IDocumentPartitioner

org.eclipse.jface.text.IDocumentPartitioner
A document partitioner divides a document into a set of disjoint text partitions. Each partition has a content type, an offset, and a length. The document partitioner is connected to one document and informed about all changes of this document before any of the document's document listeners. A document partitioner can thus incrementally update on the receipt of a document change event.
In order to provided backward compatibility for clients of IDocumentPartitioner, extension interfaces are used to provide a means of evolution. The following extension interfaces exist:
- {@link org.eclipse.jface.text.IDocumentPartitionerExtension} since version 2.0 replacingthe documentChanged method with a new one returning the minimal document region comprising all partition changes.
- {@link org.eclipse.jface.text.IDocumentPartitionerExtension2} since version 3.0introducing zero-length partitions in conjunction with the distinction between open and closed partitions. Also provides inside in the implementation of the partitioner by exposing the position category used for managing the partitioning information.
- {@link org.eclipse.jface.text.IDocumentPartitionerExtension3} since version 3.1 introducingrewrite session. It also replaces the existing {@link #connect(IDocument)} method witha new one: {@link org.eclipse.jface.text.IDocumentPartitionerExtension3#connect(IDocument,boolean)}.
Clients may implement this interface and its extension interfaces or use the standard implementation DefaultPartitioner.
@see org.eclipse.jface.text.IDocumentPartitionerExtension @see org.eclipse.jface.text.IDocumentPartitionerExtension2 @see org.eclipse.jface.text.IDocument

public class XMLDocumentProvider extends FileDocumentProvider {


    protected IDocument createDocument(Object element) throws CoreException {
        IDocument document = super.createDocument(element);
        if (document != null) {
            IDocumentPartitioner partitioner = new DefaultPartitioner(new XMLPartitionScanner(),
                    new String[] {XMLPartitionScanner.XML_TAG, XMLPartitionScanner.XML_COMMENT});
            partitioner.connect(document);
            document.setDocumentPartitioner(partitioner);
            // document.addDocumentListener(new IDocumentListener() {
            //                
            // public void documentAboutToBeChanged(DocumentEvent event) {
            // }

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                       "   then\n" + //
                       "       " +//
                       "end\n\n" ;


        IDocument doc = new Document( input );
        IDocumentPartitioner partitioner = new FastPartitioner( new DRLPartionScanner(),
                                                                DRLPartionScanner.LEGAL_CONTENT_TYPES );
        partitioner.connect( doc );
        doc.setDocumentPartitioner( partitioner );
        return doc;
    }

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        if (value == null) {
            value = "";
        }
        IDocument document = new Document(value);
        actionViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        actionViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    actionViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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        if (value == null) {
            value = "";
        }
        IDocument document = new Document(value);
        actionViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        actionViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    actionViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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                return assistant;
            }
        });
        IDocument document = new Document();
        constraintViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        constraintViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    constraintViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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        if (value == null) {
            value = "";
        }
        IDocument document = new Document(value);
        actionViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        actionViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    actionViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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     * @see org.eclipse.core.filebuffers.IDocumentSetupParticipant#setup(org.eclipse.jface.text.IDocument)
     */
    public void setup( IDocument document ) {
        if (document instanceof IDocumentExtension3) {
            IDocumentExtension3 extension3 = (IDocumentExtension3) document;
            IDocumentPartitioner partitioner = new FastPartitioner(JConsolePlugin.getDefault().getJavaPartitionScanner(), JavaPartitionScanner.JAVA_PARTITION_TYPES);
            extension3.setDocumentPartitioner(JConsolePlugin.JAVA_PARTITIONING, partitioner);
            partitioner.connect(document);
        }
    }

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                return assistant;
            }
        });
        IDocument document = new Document(getProcessImports());
        importsViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        importsViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    importsViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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                return assistant;
            }
        });
        IDocument document = new Document(getProcessImports());
        globalsViewer.setDocument(document);
        IDocumentPartitioner partitioner =
            new FastPartitioner(
                new DRLPartionScanner(),
                DRLPartionScanner.LEGAL_CONTENT_TYPES);
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
        globalsViewer.getControl().addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (e.character == ' ' && e.stateMask == SWT.CTRL) {
                    globalsViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);

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    private void establishPartitioner(IDocument document) {
        if (document == null) {
            throw new IllegalArgumentException("Cannot be null: document"); //$NON-NLS-1$
        }


        IDocumentPartitioner partitioner =
                new DefaultPartitioner(
                        new XMLPartitionScanner(),
                        new String[]{
                            XMLPartitionScanner.XML_TAG,
                            XMLPartitionScanner.XML_COMMENT});
        partitioner.connect(document);
        document.setDocumentPartitioner(partitioner);
    }

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