private static XmlNodeSyntax WithoutEmptyTextAtEnd(XmlTextSyntax comment, IList <SyntaxToken> textTokens)
{
// get rid of all empty tokens at the end as we re-add some
while (textTokens.Count > 0 && textTokens[textTokens.Count - 1].ValueText.IsNullOrWhiteSpace())
{
textTokens.RemoveAt(textTokens.Count - 1);
}
return(comment.WithTextTokens(SyntaxFactory.TokenList(textTokens)));
}
public static SyntaxList <XmlNodeSyntax> WithoutFirstAndLastNewlines(this SyntaxList <XmlNodeSyntax> summaryContent)
{
if (summaryContent.Count == 0)
{
return(summaryContent);
}
XmlTextSyntax firstSyntax = summaryContent[0] as XmlTextSyntax;
if (firstSyntax == null)
{
return(summaryContent);
}
XmlTextSyntax lastSyntax = summaryContent[summaryContent.Count - 1] as XmlTextSyntax;
if (lastSyntax == null)
{
return(summaryContent);
}
SyntaxTokenList firstSyntaxTokens = firstSyntax.TextTokens;
int removeFromStart;
if (IsXmlNewLine(firstSyntaxTokens[0]))
{
removeFromStart = 1;
}
else
{
if (!IsXmlWhitespace(firstSyntaxTokens[0]))
{
return(summaryContent);
}
if (!IsXmlNewLine(firstSyntaxTokens[1]))
{
return(summaryContent);
}
removeFromStart = 2;
}
SyntaxTokenList lastSyntaxTokens = lastSyntax.TextTokens;
int removeFromEnd;
if (IsXmlNewLine(lastSyntaxTokens[lastSyntaxTokens.Count - 1]))
{
removeFromEnd = 1;
}
else
{
if (!IsXmlWhitespace(lastSyntaxTokens[lastSyntaxTokens.Count - 1]))
{
return(summaryContent);
}
if (!IsXmlNewLine(lastSyntaxTokens[lastSyntaxTokens.Count - 2]))
{
return(summaryContent);
}
removeFromEnd = 2;
}
for (int i = 0; i < removeFromStart; i++)
{
firstSyntaxTokens = firstSyntaxTokens.RemoveAt(0);
}
if (firstSyntax == lastSyntax)
{
lastSyntaxTokens = firstSyntaxTokens;
}
for (int i = 0; i < removeFromEnd; i++)
{
if (!lastSyntaxTokens.Any())
{
break;
}
lastSyntaxTokens = lastSyntaxTokens.RemoveAt(lastSyntaxTokens.Count - 1);
}
summaryContent = summaryContent.RemoveAt(summaryContent.Count - 1);
if (lastSyntaxTokens.Count != 0)
{
summaryContent = summaryContent.Add(lastSyntax.WithTextTokens(lastSyntaxTokens));
}
if (firstSyntax != lastSyntax)
{
summaryContent = summaryContent.RemoveAt(0);
if (firstSyntaxTokens.Count != 0)
{
summaryContent = summaryContent.Insert(0, firstSyntax.WithTextTokens(firstSyntaxTokens));
}
}
if (summaryContent.Count > 0)
{
// Make sure to remove the leading trivia
summaryContent = summaryContent.Replace(summaryContent[0], summaryContent[0].WithLeadingTrivia());
// Remove leading spaces (between the <para> start tag and the start of the paragraph content)
XmlTextSyntax firstTextSyntax = summaryContent[0] as XmlTextSyntax;
if (firstTextSyntax != null && firstTextSyntax.TextTokens.Count > 0)
{
SyntaxToken firstTextToken = firstTextSyntax.TextTokens[0];
string firstTokenText = firstTextToken.Text;
string trimmed = firstTokenText.TrimStart();
if (trimmed != firstTokenText)
{
SyntaxToken newFirstToken = SyntaxFactory.Token(
firstTextToken.LeadingTrivia,
firstTextToken.Kind(),
trimmed,
firstTextToken.ValueText.TrimStart(),
firstTextToken.TrailingTrivia);
summaryContent = summaryContent.Replace(firstTextSyntax, firstTextSyntax.ReplaceToken(firstTextToken, newFirstToken));
}
}
}
return(summaryContent);
}
