private bool TryRemoveSummaryPrefix(ref SyntaxList<XmlNodeSyntax> summaryContent, string prefix)
{
XmlNodeSyntax firstContent = summaryContent.FirstOrDefault(IsContentElement);
XmlTextSyntax firstText = firstContent as XmlTextSyntax;
if (firstText == null)
{
return false;
}
string firstTextContent = string.Concat(firstText.DescendantTokens());
if (!firstTextContent.TrimStart().StartsWith(prefix, StringComparison.Ordinal))
{
return false;
}
// Find the token containing the prefix, such as "Gets or sets "
SyntaxToken prefixToken = default(SyntaxToken);
foreach (SyntaxToken textToken in firstText.TextTokens)
{
if (textToken.IsMissing)
{
continue;
}
if (!textToken.Text.TrimStart().StartsWith(prefix, StringComparison.Ordinal))
{
continue;
}
prefixToken = textToken;
break;
}
if (prefixToken.IsMissingOrDefault())
{
return false;
}
string text = prefixToken.Text;
string valueText = prefixToken.ValueText;
int index = text.IndexOf(prefix);
if (index >= 0)
{
bool additionalCharacters = index + prefix.Length < text.Length;
text = text.Substring(0, index)
+ (additionalCharacters ? char.ToUpperInvariant(text[index + prefix.Length]).ToString() : string.Empty)
+ text.Substring(index + (additionalCharacters ? (prefix.Length + 1) : prefix.Length));
}
index = valueText.IndexOf(prefix);
if (index >= 0)
{
valueText = valueText.Remove(index, prefix.Length);
}
SyntaxToken replaced = SyntaxFactory.Token(prefixToken.LeadingTrivia, prefixToken.Kind(), text, valueText, prefixToken.TrailingTrivia);
summaryContent = summaryContent.Replace(firstText, firstText.ReplaceToken(prefixToken, replaced));
return true;
}
private void DoTestAddInsertRemoveReplaceOnEmptyList(SyntaxList<SyntaxNode> list)
{
Assert.Equal(0, list.Count);
SyntaxNode nodeD = SyntaxFactory.ParseExpression("D ");
SyntaxNode nodeE = SyntaxFactory.ParseExpression("E ");
var newList = list.Add(nodeD);
Assert.Equal(1, newList.Count);
Assert.Equal("D ", newList.ToFullString());
newList = list.AddRange(new[] { nodeD, nodeE });
Assert.Equal(2, newList.Count);
Assert.Equal("D E ", newList.ToFullString());
newList = list.Insert(0, nodeD);
Assert.Equal(1, newList.Count);
Assert.Equal("D ", newList.ToFullString());
newList = list.InsertRange(0, new[] { nodeD, nodeE });
Assert.Equal(2, newList.Count);
Assert.Equal("D E ", newList.ToFullString());
newList = list.Remove(nodeD);
Assert.Equal(0, newList.Count);
Assert.Equal(-1, list.IndexOf(nodeD));
Assert.Throws<ArgumentOutOfRangeException>(() => list.RemoveAt(0));
Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(1, nodeD));
Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(-1, nodeD));
Assert.Throws<ArgumentOutOfRangeException>(() => list.InsertRange(1, new[] { nodeD }));
Assert.Throws<ArgumentOutOfRangeException>(() => list.InsertRange(-1, new[] { nodeD }));
Assert.Throws<ArgumentException>(() => list.Replace(nodeD, nodeE));
Assert.Throws<ArgumentException>(() => list.ReplaceRange(nodeD, new[] { nodeE }));
Assert.Throws<ArgumentNullException>(() => list.Add(null));
Assert.Throws<ArgumentNullException>(() => list.AddRange((IEnumerable<SyntaxNode>)null));
Assert.Throws<ArgumentNullException>(() => list.Insert(0, null));
Assert.Throws<ArgumentNullException>(() => list.InsertRange(0, (IEnumerable<SyntaxNode>)null));
}
private static SyntaxList<XmlNodeSyntax> RemoveMalformattedStandardText(SyntaxList<XmlNodeSyntax> content, SyntaxToken identifier, string preText, string postText, ref string trailingString)
{
var regex = new Regex(@"^\s*" + Regex.Escape(preText) + "[^ ]+" + Regex.Escape(postText));
var item = content.OfType<XmlTextSyntax>().FirstOrDefault();
if (item == null)
{
return content;
}
int index = -1;
foreach (var token in item.TextTokens)
{
index++;
if (token.IsKind(SyntaxKind.XmlTextLiteralNewLineToken))
{
continue;
}
else if (token.IsKind(SyntaxKind.XmlTextLiteralToken))
{
string value = token.ValueText.Trim(null);
Match match = regex.Match(value);
if (!match.Success)
{
return content;
}
else if (match.Length == value.Length)
{
// Remove the token
var tokens = item.TextTokens;
while (index >= 0)
{
tokens = tokens.RemoveAt(0);
index--;
}
var newContent = item.WithTextTokens(tokens);
return content.Replace(item, newContent);
}
else
{
// Remove the tokens before
var tokens = item.TextTokens;
while (index >= 0)
{
tokens = tokens.RemoveAt(0);
index--;
}
trailingString = value.Substring(match.Length);
var newContent = item.WithTextTokens(tokens);
return content.Replace(item, newContent);
}
}
else
{
return content;
}
}
return content;
}
