/// <inheritdoc/>
public override void BeginSpan(HighlightingColor highlightingColor)
{
WriteIndentationAndSpace();
if (options.ColorNeedsSpanForStyling(highlightingColor)) {
htmlWriter.Write("<span");
options.WriteStyleAttributeForColor(htmlWriter, highlightingColor);
htmlWriter.Write('>');
endTagStack.Push("</span>");
} else {
endTagStack.Push(null);
}
}
/// <summary>
/// Produces HTML code for a section of the line, with <span class="colorName"> tags.
/// </summary>
public string ToHtml(int startOffset, int endOffset, HtmlOptions options)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
int documentLineStartOffset = this.DocumentLine.Offset;
int documentLineEndOffset = documentLineStartOffset + this.DocumentLine.Length;
if (startOffset < documentLineStartOffset || startOffset > documentLineEndOffset)
{
throw new ArgumentOutOfRangeException("startOffset", startOffset, "Value must be between " + documentLineStartOffset + " and " + documentLineEndOffset);
}
if (endOffset < startOffset || endOffset > documentLineEndOffset)
{
throw new ArgumentOutOfRangeException("endOffset", endOffset, "Value must be between startOffset and " + documentLineEndOffset);
}
ISegment requestedSegment = new SimpleSegment(startOffset, endOffset - startOffset);
List <HtmlElement> elements = new List <HtmlElement>();
for (int i = 0; i < this.Sections.Count; i++)
{
HighlightedSection s = this.Sections[i];
if (s.GetOverlap(requestedSegment).Length > 0)
{
elements.Add(new HtmlElement(s.Offset, i, false, s.Color));
elements.Add(new HtmlElement(s.Offset + s.Length, i, true, s.Color));
}
}
elements.Sort();
TextDocument document = this.Document;
StringWriter w = new StringWriter(CultureInfo.InvariantCulture);
int textOffset = startOffset;
foreach (HtmlElement e in elements)
{
int newOffset = Math.Min(e.Offset, endOffset);
if (newOffset > startOffset)
{
HtmlClipboard.EscapeHtml(w, document.GetText(textOffset, newOffset - textOffset), options);
}
textOffset = Math.Max(textOffset, newOffset);
if (options.ColorNeedsSpanForStyling(e.Color))
{
if (e.IsEnd)
{
w.Write("</span>");
}
else
{
w.Write("<span");
options.WriteStyleAttributeForColor(w, e.Color);
w.Write('>');
}
}
}
HtmlClipboard.EscapeHtml(w, document.GetText(textOffset, endOffset - textOffset), options);
return(w.ToString());
}
