private static XElement UniteSections(XText title, IEnumerable <XElement> sections, string namespaceName)
{
XElement result;
List <XElement> actualSections = sections.Where(s => s != null).ToList();
switch (actualSections.Count)
{
case 0:
throw new ArgumentOutOfRangeException($"Amount of {nameof(sections)}", 0,
"Some sections expected.");
case 1:
result = actualSections.Single();
break;
default:
result = XDocumentHelpers.CreateElement("section", namespaceName);
foreach (XElement currentSection in actualSections)
{
result.Add(currentSection);
}
break;
}
if (title != null)
{
XElement titleElement = CreateTitle(title, namespaceName);
result.AddFirst(titleElement);
}
return(result);
}
private static XElement CreateSection(XText title, IReadOnlyCollection <XElement> body, string namespaceName)
{
if ((title == null) && (body.Count == 0))
{
return(null);
}
XElement section = XDocumentHelpers.CreateElement("section", namespaceName);
if (title != null)
{
XElement titleElement = CreateTitle(title, namespaceName);
section.Add(titleElement);
}
if (body.Count == 0)
{
XElement emptyLine = XDocumentHelpers.CreateElement("empty-line", namespaceName);
section.Add(emptyLine);
}
else
{
section.Add(body);
}
return(section);
}
private static XElement CreateTitle(XText title, string namespaceName)
{
XElement p = XDocumentHelpers.CreateElement("p", namespaceName, title);
return(XDocumentHelpers.CreateElement("title", namespaceName, p));
}