internal async Task <string> InternalGetRtfFormattedCodeAsync(string scriptCode, ScriptingOptions Options, FormatColorScheme ColorScheme)
{
var document = GetOrCreateDocument(Array.Empty <IParameter>(), scriptCode, Options);
document = Formatter.FormatAsync(document).Result;
SourceText documentText = await document.GetTextAsync();
IEnumerable <ClassifiedSpan> classifiedSpans = await Classifier.GetClassifiedSpansAsync(document, Microsoft.CodeAnalysis.Text.TextSpan.FromBounds(0, documentText.Length));
var ranges = classifiedSpans.Select(classifiedSpan =>
new Range(classifiedSpan, documentText.GetSubText(classifiedSpan.TextSpan).ToString()));
var LineSpans = documentText.Lines.Select(x => x.SpanIncludingLineBreak);
var result = new StringBuilder();
// RTF Header
result.AppendLine(@"{\rtf1\ansi\deff0");
// RTF Color table
var colorDefinitions = ColorScheme.GetColorsInRtfOrder().Select(x => $"\\red{x.R}\\green{x.G}\\blue{x.B};");
result.AppendLine(@"{\colortbl;" + String.Join(String.Empty, colorDefinitions) + "}");
var originalText = documentText.ToString();
var codeBuilder = new StringBuilder();
var segmentedSpans = DivideSpans(LineSpans, ranges.Select(x => x.TextSpan)).ToArray();
foreach (var span in segmentedSpans)
{
var info = ranges.SingleOrDefault(x => x.TextSpan.CompareTo(span) == 0);
if (info != null)
{
var colorIndex = ColorScheme.GetColorIndexForKeyword(info.ClassificationType);
codeBuilder.AppendLine(Environment.NewLine + @"\cf" + colorIndex);
}
var text = originalText.Substring(span.Start, span.Length);
text = GetRtfUnicodeEscapedString(text);
text = text.Replace(Environment.NewLine, @"\line" + Environment.NewLine);
codeBuilder.Append(text);
}
result.Append(codeBuilder.ToString());
result.AppendLine("}");
return(result.ToString());
}
