public void TryCloseTag(ITextChange textChange, IList <TextManipulation> manipulations)
{
var currentTag = _state.ParseCurrentTagName();
if (textChange.NewText == "/" && !string.IsNullOrEmpty(currentTag) && currentTag != "/")
{
var text = _text.Span;
int pos = _state.ParserPos;
char c = ' ';
while (char.IsWhiteSpace(c) && text.Length > pos + 1)
{
pos++;
c = text[pos];
}
bool tagAlreadyClosed = c == '>';
if (!tagAlreadyClosed)
{
manipulations.Add(TextManipulation.Insert(_position + 1, $">"));
}
else
{
var closingTagPos = FindClosingTag(currentTag, pos + 1);
if (closingTagPos != null)
{
manipulations.Add(TextManipulation.Insert(_position + 1, $">"));
manipulations.Add(TextManipulation.Delete(_position + 1, closingTagPos.Value - _position));
}
}
}
}
private void SynchronizeStartAndEndTag(ITextChange textChange, List <TextManipulation> maniplations)
{
if (!textChange.NewText.All(n => char.IsLetterOrDigit(n) || XmlNameSpecialCharacters.Contains(n)))
{
return;
}
string startTag = _state.ParseCurrentTagName();
int? maybeTagStart = _state.CurrentValueStart;
if (maybeTagStart == null)
{
return;
}
int startPos = maybeTagStart.Value; // add 1 to take opening < into account
if (startTag.EndsWith("/"))
{
return; // start tag is self-closing
}
if (textChange.NewPosition < startPos || textChange.NewPosition > startPos + startTag.Length)
{
return; //we are not editing tag name
}
XmlParser searchEndTag = _state.Clone();
if (searchEndTag.SeekClosingTag())
{
string endTag = searchEndTag.ParseCurrentTagName();
if (endTag[0] != '/')
{
return;
}
maybeTagStart = searchEndTag.CurrentValueStart;
if (maybeTagStart == null)
{
return;
}
int endPos = maybeTagStart.Value; // add 1 to take opening < into account
// reverse change to start tag
startTag = textChange.ReverseOn(startTag, startPos);
bool isTheSameTag = endTag.Length > 0 && endTag.Substring(1) == startTag;
if (isTheSameTag)
{
maniplations.AddRange(textChange.AsManipulations(endPos - startPos));
}
}
}