Can you point me in the right direction?

public class PostSyntaxLanguage : SyntaxLanguage, IEditorDocumentTextChangeEventSink, IActiveEditorViewChangeEventSink 
    {
        /////////////////////////////////////////////////////////////////////////////////////////////////////
        // PUBLIC PROCEDURES
        /////////////////////////////////////////////////////////////////////////////////////////////////////

        /// <summary>
        /// Initializes a new instance of the PostSyntaxLanguage class.
        /// </summary>
        public PostSyntaxLanguage()
            : base("Post")
        {
            // Initialize this language from a language definition
            SyntaxEditorHelper.InitializeLanguageFromResourceStream(this, "Post.langdef");

            // Register an outliner, which tells the document's outlining manager that
            //   this language supports automatic outlining, and helps drive outlining updates
            this.RegisterService<IOutliner>(new TokenOutliner<PostOutliningSource>());

            // Register a built-in service that automatically provides quick info tips 
            //   when hovering over collapsed outlining nodes
            this.RegisterService(new CollapsedRegionQuickInfoProvider());

            this.RegisterService(new CodeDocumentTaggerProvider<ParseErrorTagger>(typeof(ParseErrorTagger)));

            this.RegisterService<IParser>(new PostParser());

            // Register a completion provider that displays a completion list when appropriate
            this.RegisterService(new PostCompletionProvider());

            // Register the language itself as an event sink for document text change events
            //   so that we can show a completion list as words are starting to be typed
            this.RegisterService<IEditorDocumentTextChangeEventSink>(this);

            this.RegisterService<IActiveEditorViewChangeEventSink>(this);

            this.RegisterService(new TokenTaggerProvider<PostTokenTagger>());

            this.RegisterService(new PostQuickInfoProvider());
           
            // Get and register the language files lexer
            this.RegisterService<ILexer>(this.GetLexer());

            // Register an line commenter allowing us to comments/uncomment documents
            this.RegisterService<ILineCommenter>(new LineBasedLineCommenter() { StartDelimiter = "//" });

            // Register a provider service that can create the custom adornment manager
            //this.RegisterService(new AdornmentManagerProvider<AlternatingRowsAdornmentManager>(typeof(AlternatingRowsAdornmentManager)));

            // Register a provider service that can create the custom adornment manager
            this.RegisterService(new AdornmentManagerProvider<HighlightLineAdornmentManager>(typeof(HighlightLineAdornmentManager)));

            this.CanShowCompletionListForNewWords = true;
        }