public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
ITextSnapshot snapshot = span.Snapshot;
SnapshotSpan paragraph = GetEnclosingParagraph(span);
string paragraphText = snapshot.GetText(paragraph);
// And now parse the given paragraph and return classification spans for everything
List <ClassificationSpan> spans = new List <ClassificationSpan>();
foreach (var token in MarkdownParser.ParseMarkdownParagraph(paragraphText))
{
IClassificationType type = GetClassificationTypeForMarkdownToken(token.TokenType);
spans.Add(new ClassificationSpan(new SnapshotSpan(paragraph.Start + token.Span.Start, token.Span.Length), type));
}
return(spans);
}
void RefreshComboItems(object sender, EventArgs args)
{
try
{
ignoreComboChange = true;
ITextSnapshot snapshot = textView.TextBuffer.CurrentSnapshot;
sections = new List <MarkdownSection>(
MarkdownParser.ParseMarkdownSections(snapshot)
.Select(t => new MarkdownSection()
{
TokenType = t.TokenType,
Span = snapshot.CreateTrackingSpan(t.Span, SpanTrackingMode.EdgeExclusive)
}));
sectionCombo.Items.Clear();
// First, add an item for "Top of the file"
sectionCombo.Items.Add(" (Top of file)");
foreach (var section in sections)
{
var lineText = section.Span.GetStartPoint(snapshot).GetContainingLine().GetText().TrimStart(' ', '\t', '#');
string spaces = new string('-', section.TokenType - MarkdownParser.TokenType.H1);
string comboText = string.Format("{0}{1}", spaces, lineText);
sectionCombo.Items.Add(comboText);
}
SetSectionComboToCaretPosition();
}
finally
{
ignoreComboChange = false;
}
}
IClassificationType GetClassificationTypeForMarkdownToken(MarkdownParser.TokenType tokenType)
{
string classificationType;
if (!_tokenToClassificationType.TryGetValue(tokenType, out classificationType))
throw new ArgumentException("Unable to find classification type for " + tokenType.ToString(), "tokenType");
return _classificationRegistry.GetClassificationType(classificationType);
}
static bool IsHeaderToken(MarkdownParser.Token token)
{
return token.TokenType >= MarkdownParser.TokenType.H1 && token.TokenType <= MarkdownParser.TokenType.H6;
}
