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);
}
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);
}