private void CreateTagSpans(ITextSnapshot snapshot)
{
var scanner = new TemplateScanner(snapshot.GetText());
while (scanner.yylex() != (int)SyntaxKind.EOF)
{
SyntaxNode token = scanner.yylval;
IClassificationType classificationType;
switch (token.Kind)
{
case SyntaxKind.BlockEnd:
case SyntaxKind.ClassBlockStart:
case SyntaxKind.DirectiveBlockStart:
case SyntaxKind.ExpressionBlockStart:
case SyntaxKind.StatementBlockStart:
classificationType = this.delimiterClassification;
break;
case SyntaxKind.DirectiveName:
classificationType = this.directiveNameClassificaiton;
break;
case SyntaxKind.AttributeName:
classificationType = this.attributeNameClassification;
break;
case SyntaxKind.AttributeValue:
classificationType = this.attributeValueClassification;
break;
case SyntaxKind.Code:
classificationType = this.codeBlockClassificaiton;
break;
case SyntaxKind.Equals:
case SyntaxKind.DoubleQuote:
// Ignore
continue;
default:
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, "Unexpected SyntaxKind value {0}.", token.Kind));
}
this.CreateTagSpan(snapshot.CreateTrackingSpan(token.Span, SpanTrackingMode.EdgeNegative), new ClassificationTag(classificationType));
}
}
private void ParseTextSnapshot(ITextSnapshot snapshot)
{
var scanner = new TemplateScanner(snapshot.GetText());
var parser = new TemplateParser(scanner);
parser.Parse();
// Always return a template object, even if the parser couldn't build one, to avoid downstream errors.
Template template = parser.Template ?? new Template();
var errors = new List <TemplateError>(parser.Errors);
errors.AddRange(template.Validate());
this.OnTemplateChanged(new TemplateAnalysis(snapshot, template, errors));
}
