Ejemplo n.º 1
0
        public IEnumerable <ITagSpan <ITag> > DoWork(ITextSnapshot snapshot, object input, System.Threading.CancellationToken cancelToken)
        {
            List <ITagSpan <ITag> > results = new List <ITagSpan <ITag> >();

            var source = snapshot.GetText();

            var inputStream = new AntlrInputStream(new StringReader(source));

            var txMarkLexer = new TxMarkLexer(inputStream);

            var tokens = new CommonTokenStream(txMarkLexer);

            var txMarkParser = new TxMarkParser(tokens);

            txMarkParser.BuildParseTree = true;

            var parseTree = txMarkParser.document();

            var txMarkSyntaxHighlighterParseTreeWalker = new TxMarkSyntaxHighlighterParseTreeWalker(this, snapshot);

            ParseTreeWalker.Default.Walk(txMarkSyntaxHighlighterParseTreeWalker, parseTree);

            return(txMarkSyntaxHighlighterParseTreeWalker.Tags);
        }
Ejemplo n.º 2
0
        private static CompileContext Parse <TModel>(TextReader reader, string templatePath, Options options, Result result)
        {
            DateTime startTime = DateTime.Now;

            TxMarkParser.DocumentContext parseTree;

            var inputStream = new AntlrInputStream(reader);

            var txMarkLexer = new TxMarkLexer(inputStream);

            var tokens = new CommonTokenStream(txMarkLexer);

            var txMarkParser = new TxMarkParser(tokens);

            txMarkParser.RemoveErrorListeners();
            txMarkParser.AddErrorListener(new ParserErrorListener(result));

            txMarkParser.BuildParseTree = true;

            parseTree = txMarkParser.document();

            DateTime parseTime = DateTime.Now;

            result.ParserTime = parseTime - startTime;
            List <Diagnostic> diagnostics = new List <Diagnostic>();
            var compileContext            = new CompileContext(
                options.TemplateBaseClass ?? typeof(CompiledTemplateBase <TModel>),
                typeof(TModel),
                templateName: MakeTemplateName(options, templatePath),
                templatePath: templatePath,
                logHandler: (level, message, line, column) =>
            {
                //Debug.WriteLine($"{level}: {message} at or near line {line}, column {column}");
                switch (level)
                {
                case LogLevel.Warning:
                    diagnostics.Add(
                        new Diagnostic(DiagnosticSeverity.Warning, Result.Sources.Parser, null, message, line, column)
                        );
                    break;

                case LogLevel.Error:
                    diagnostics.Add(
                        new Diagnostic(DiagnosticSeverity.Error, Result.Sources.Parser, null, message, line, column)
                        );
                    break;
                }
            });
            var txMarkListener = new TxMarkParseTreeListener(compileContext);

            try
            {
                ParseTreeWalker.Default.Walk(txMarkListener, parseTree);
                result.Success = true;
            }
            catch (Exception e)
            {
                diagnostics.Add(
                    new Diagnostic(DiagnosticSeverity.Error, Result.Sources.Parser, "parse tree walking", e.Message)
                    );
                result.Success = false;
            }
            foreach (var diagnostic in diagnostics)
            {
                if (diagnostic.Severity == DiagnosticSeverity.Error)
                {
                    result.Success = false;
                }
                result.AddDiagnostic(diagnostic);
            }
            if (options.OutputParser)
            {
                var formatStartTime = DateTime.Now;
                try
                {
                    result.ParserStream = compileContext.ToStream(options.Encoding);
                }
                catch (Exception e)
                {
                    diagnostics.Add(
                        new Diagnostic(DiagnosticSeverity.Error, Result.Sources.Parser, "formatting parser output", e.Message)
                        );
                    result.Success = false;
                }
                var formatEndTime = DateTime.Now;
                result.FormatTime = formatEndTime - formatStartTime;
            }
            return(compileContext);
        }