/// <summary>
/// Takes an HTML string and inserts the Table of Contents into
/// the Html
/// </summary>
/// <param name="html">The html to insert the Table of Contents into</param>
/// <returns>An Html string containing the original html along with a table of contents</returns>
internal string InsertTableOfContents(string html)
{
var position = GetTableOfContentsPosition(ref html);
if (position == -1)
{
return(html);
}
var hierarchy = _tableOfContentsService.GetHeadingHierarchy(html);
if (hierarchy == null || !hierarchy.Any())
{
return(html);
}
var tableOfContents = _tableOfContentsBuilder.BuildTableOfContents(hierarchy);
if (String.IsNullOrEmpty(tableOfContents))
{
return(html);
}
var newHtml = new StringBuilder();
newHtml.Append(html.Substring(0, position));
newHtml.Append(tableOfContents);
newHtml.Append(html.Substring(position));
return(newHtml.ToString());
}
public void Test_Heading_AnchorName_Persisted()
{
var hierarchy = _tableOfContentsService.GetHeadingHierarchy("<h4><a name=\"h4-anchor\"></a>Heading Contents</h4>");
Assert.AreEqual(1, hierarchy.Count);
Assert.AreEqual("h4-anchor", hierarchy.First().Item.AnchorName);
}