public Parser(Scanner scanner, ErrorHandler errors)
{
_scanner = scanner;
_scanner.GetToken();
_errors = errors;
}
public override AuthoringScope ParseSource(ParseRequest req)
{
if (req == null)
{
throw new ArgumentNullException("req");
}
Trace.WriteLine(string.Format("NVelocityLanguage.ParseSource(). Reason:{0}", req.Reason));
// Parse the input if required
if (req.Reason == ParseReason.Check ||
req.Reason == ParseReason.DisplayMemberList ||
req.Reason == ParseReason.MemberSelect ||
req.Reason == ParseReason.MethodTip)
{
ErrorHandler errors = new ErrorHandler();
try
{
Scanner scanner = new Scanner(errors);
scanner.Options.EnableIntelliSenseTriggerTokens = true;
scanner.SetSource(req.Text);
Parser parser = new Parser(scanner, errors);
_templateNode = parser.ParseTemplate();
// Prepare the template node so that all the helpers are available
PrepareTemplateNode(req.FileName);
_templateNode.DoSemanticChecks(errors);
}
catch (ScannerError se)
{
req.Sink.AddError(req.FileName, "Scanner Error: " + se.Message, new TextSpan(),
Severity.Error);
}
catch (Exception ex)
{
req.Sink.AddError(req.FileName, "FATAL: " + ex, new TextSpan(), Severity.Error);
}
finally
{
for (int i = 0; i < errors.Count; i++)
{
Error error = errors[i];
TextSpan textSpan = new TextSpan();
textSpan.iStartLine = error.Position.StartLine - 1;
textSpan.iStartIndex = error.Position.StartPos - 1;
textSpan.iEndLine = error.Position.EndLine - 1;
textSpan.iEndIndex = error.Position.EndPos - 1;
Severity severity = Severity.Fatal;
if (error.Severity == ErrorSeverity.Error)
severity = Severity.Error;
else if (error.Severity == ErrorSeverity.Warning)
severity = Severity.Warning;
else if (error.Severity == ErrorSeverity.Message)
severity = Severity.Hint;
req.Sink.AddError(req.FileName, error.Description, textSpan, severity);
}
}
#if DEBUG
int line;
int column;
req.View.GetCaretPos(out line, out column);
_debugForm.UpdateUI(line + 1, column + 1, _templateNode);
#endif
}
else
{
//MessageBox.Show("Unparsed ParseReason: " + req.Reason);
}
// Perform other operations
if (req.Reason == ParseReason.MethodTip)
{
TextSpan textSpan = new TextSpan();
textSpan.iStartLine = req.Line;
textSpan.iStartIndex = req.Col - 1;
textSpan.iEndLine = req.Line;
textSpan.iEndIndex = req.Col;
req.Sink.StartName(textSpan, "");
req.Sink.StartParameters(textSpan);
Trace.WriteLine("MethodTip at line " + req.Line + " col " + req.Col);
}
if (req.Sink.HiddenRegions)
{
AddHiddenRegions(req.Sink, _templateNode.Content);
req.Sink.ProcessHiddenRegions = true;
}
NVelocityAuthoringScope scope = new NVelocityAuthoringScope(_templateNode, req.FileName);
//if (req.Sink.BraceMatching && req.Col > 30)
//{
// TextSpan startBrace = new TextSpan();
// startBrace.iStartLine = req.Line;
// startBrace.iStartIndex = 20;
// startBrace.iEndLine = req.Line;
// startBrace.iEndIndex = 21;
// TextSpan endBrace = new TextSpan();
// endBrace.iStartLine = req.Line;
// endBrace.iStartIndex = req.Col - 1;
// endBrace.iEndLine = req.Line;
// endBrace.iEndIndex = req.Col;
// req.Sink.MatchPair(startBrace, endBrace, 0);
//}
return scope;
}