/// <summary>
/// Group several Tokens in a special span, specifying it's type
/// </summary>
/// <param name="start"></param>
/// <param name="stop"></param>
/// <param name="snapshot"></param>
/// <param name="type"></param>
/// <returns></returns>
private ClassificationSpan Token2ClassificationSpan(IToken start, IToken stop, ITextSnapshot snapshot, IClassificationType type)
{
TextSpan tokenSpan = new TextSpan(start.StartIndex, stop.StopIndex - start.StartIndex + 1);
XsClassificationSpan span = tokenSpan.ToClassificationSpan(snapshot, type);
span.startTokenType = start.Type;
span.endTokenType = stop.Type;
return(span);
}
/// <summary>
/// "Mark" a Token, specifying it's type and the span it covers
/// </summary>
/// <param name="token"></param>
/// <param name="snapshot"></param>
/// <param name="type"></param>
/// <returns></returns>
private ClassificationSpan Token2ClassificationSpan(IToken token, ITextSnapshot snapshot, IClassificationType type)
{
if (token != null && snapshot != null)
{
TextSpan tokenSpan = new TextSpan(token.StartIndex, token.StopIndex - token.StartIndex + 1);
XsClassificationSpan span = tokenSpan.ToClassificationSpan(snapshot, type);
span.startTokenType = token.Type;
span.endTokenType = -1;
return(span);
}
return(default);
