--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/text/contentassist/IContentAssistProcessor.d	Sat Aug 23 19:10:48 2008 +0200
@@ -0,0 +1,90 @@
+/*******************************************************************************
+ * 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
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.jface.text.contentassist.IContentAssistProcessor;
+
+import dwt.dwthelper.utils;
+
+import dwtx.jface.text.ITextViewer;
+
+
+/**
+ * A content assist processor proposes completions and
+ * computes context information for a particular content type.
+ * A content assist processor is a {@link dwtx.jface.text.contentassist.IContentAssistant}
+ * plug-in.
+ * <p>
+ * This interface must be implemented by clients. Implementers should be
+ * registered with a content assistant in order to get involved in the
+ * assisting process.
+ * </p>
+*/
+public interface IContentAssistProcessor {
+
+    /**
+     * Returns a list of completion proposals based on the
+     * specified location within the document that corresponds
+     * to the current cursor position within the text viewer.
+     *
+     * @param viewer the viewer whose document is used to compute the proposals
+     * @param offset an offset within the document for which completions should be computed
+     * @return an array of completion proposals or <code>null</code> if no proposals are possible
+     */
+    ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset);
+
+    /**
+     * Returns information about possible contexts based on the
+     * specified location within the document that corresponds
+     * to the current cursor position within the text viewer.
+     *
+     * @param viewer the viewer whose document is used to compute the possible contexts
+     * @param offset an offset within the document for which context information should be computed
+     * @return an array of context information objects or <code>null</code> if no context could be found
+     */
+    IContextInformation[] computeContextInformation(ITextViewer viewer, int offset);
+
+    /**
+     * Returns the characters which when entered by the user should
+     * automatically trigger the presentation of possible completions.
+     *
+     * @return the auto activation characters for completion proposal or <code>null</code>
+     *      if no auto activation is desired
+     */
+    char[] getCompletionProposalAutoActivationCharacters();
+
+    /**
+     * Returns the characters which when entered by the user should
+     * automatically trigger the presentation of context information.
+     *
+     * @return the auto activation characters for presenting context information
+     *      or <code>null</code> if no auto activation is desired
+     */
+    char[] getContextInformationAutoActivationCharacters();
+
+    /**
+     * Returns the reason why this content assist processor
+     * was unable to produce any completion proposals or context information.
+     *
+     * @return an error message or <code>null</code> if no error occurred
+     */
+    String getErrorMessage();
+
+    /**
+     * Returns a validator used to determine when displayed context information
+     * should be dismissed. May only return <code>null</code> if the processor is
+     * incapable of computing context information. <p>
+     *
+     * @return a context information validator, or <code>null</code> if the processor
+     *          is incapable of computing context information
+     */
+    IContextInformationValidator getContextInformationValidator();
+}