public static List <Run> ToRuns(this SyntaxToken token, IClassificationFormatMap formatMap, IClassificationTypeRegistryService typeRegistry)
{
List <Run> runs = new List <Run>();
if (token.HasLeadingTrivia)
{
runs.Add(token.LeadingTrivia.GetTextAndReplaceNewLines(string.Empty).ToRun(formatMap, typeRegistry.GetClassificationType(PredefinedClassificationTypeNames.WhiteSpace)));
}
runs.Add(token.Text.ToRun(formatMap, typeRegistry.GetClassificationType(token.GetClassificationName())));
if (token.HasTrailingTrivia)
{
runs.Add(token.TrailingTrivia.GetTextAndReplaceNewLines(" ").ToRun(formatMap, typeRegistry.GetClassificationType(PredefinedClassificationTypeNames.WhiteSpace)));
}
return(runs);
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
VSSnapshot currentSnapshot = new VSSnapshot(this.source, span.Snapshot);
LinkedList <Token> tokens = this.lexer.Run(currentSnapshot, span.Start.GetContainingLine().ExtentIncludingLineBreak.Span.ToGLSLSpan());
List <ClassificationSpan> spans = new List <ClassificationSpan>();
SyntaxTree tree = this.source.Tree;
if (tree == null)
{
return(spans);
}
foreach (Token token in tokens)
{
if (!span.OverlapsWith(token.Span.ToVSSpan()))
{
continue;
}
SyntaxToken syntaxToken = tree?.GetNodeFromPosition(this.source.CurrentSnapshot, token.Span.Start) as SyntaxToken;
string classificationName = string.Empty;
if (syntaxToken != null)
{
classificationName = syntaxToken.GetClassificationName();
}
else
{
if (token.SyntaxType.IsPreprocessor())
{
classificationName = GLSLConstants.PreprocessorKeyword;
}
else if (token.SyntaxType.IsPunctuation())
{
classificationName = GLSLConstants.Punctuation;
}
else if (token.SyntaxType.IsKeyword())
{
classificationName = GLSLConstants.Keyword;
}
else if (token.SyntaxType.IsNumber())
{
classificationName = GLSLConstants.Number;
}
else if (token.SyntaxType == SyntaxType.IdentifierToken)
{
classificationName = GLSLConstants.Identifier;
}
}
if (!string.IsNullOrEmpty(classificationName))
{
SnapshotSpan snapshotSpan = new SnapshotSpan(span.Snapshot, token.Span.ToVSSpan());
spans.Add(new ClassificationSpan(snapshotSpan, this.classificationTypeRegistryService.GetClassificationType(classificationName)));
}
}
this.ColorComments(span, spans, currentSnapshot, this.lexer.CommentSpans);
return(spans);
}
