public static void FormatClosingBrace(ITextSnapshot Snapshot, ITextSnapshotLine line)
{
Span s = new Span(line.Start, line.Length - 1);
if (string.IsNullOrWhiteSpace(Snapshot.GetText(s)))
{
SnapshotSpan pair;
if (BraceMatchingTagger.FindMatchingOpenChar(line.End, '{', '}', Snapshot.LineCount, out pair, true))
{
var previousLine = Snapshot.GetLineFromPosition(pair.Span.Start);
int previousLineNum = previousLine.LineNumber;
string previousLineText = previousLine.GetText();
int indentLevel = LineIndenter.GetIndentLevel(Snapshot, previousLineText);
Snapshot.TextBuffer.Replace(s, new string(' ', indentLevel));
}
}
}
public IEnumerable <ITagSpan <TextMarkerTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0) //there is no content in the buffer
{
yield break;
}
//don't do anything if the current SnapshotPoint is not initialized or at the end of the buffer
if (!CurrentChar.HasValue || CurrentChar.Value.Position > CurrentChar.Value.Snapshot.Length)
{
yield break;
}
//hold on to a snapshot of the current character
SnapshotPoint currentChar = CurrentChar.Value;
//if the requested snapshot isn't the same as the one the brace is on, translate our spans to the expected snapshot
if (spans[0].Snapshot != currentChar.Snapshot)
{
currentChar = currentChar.TranslateTo(spans[0].Snapshot, PointTrackingMode.Positive);
}
//get the current char and the previous char
char currentText;
SnapshotPoint lastChar;
if (CurrentChar.Value.Position < CurrentChar.Value.Snapshot.Length)
{
currentText = currentChar.GetChar();
lastChar = currentChar == 0 ? currentChar : currentChar - 1; //if currentChar is 0 (beginning of buffer), don't move it back
}
else if (currentChar.Position <= 1)
{
yield break;
}
else
{
lastChar = currentChar - 1;
currentText = (char)0;
}
char lastText = lastChar.GetChar();
SnapshotSpan pairSpan = new SnapshotSpan();
if (m_braceList.ContainsKey(currentText)) //the key is the open brace
{
char closeChar;
m_braceList.TryGetValue(currentText, out closeChar);
if (BraceMatchingTagger.FindMatchingCloseChar(currentChar, currentText, closeChar, View.TextViewLines.Count, out pairSpan) == true)
{
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(currentChar, 1), new TextMarkerTag("blue")));
yield return(new TagSpan <TextMarkerTag>(pairSpan, new TextMarkerTag("blue")));
}
}
else if (m_braceList.ContainsValue(lastText)) //the value is the close brace, which is the *previous* character
{
var open = from n in m_braceList
where n.Value.Equals(lastText)
select n.Key;
if (BraceMatchingTagger.FindMatchingOpenChar(lastChar, (char)open.ElementAt <char>(0), lastText, View.TextViewLines.Count, out pairSpan) == true)
{
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(lastChar, 1), new TextMarkerTag("blue")));
yield return(new TagSpan <TextMarkerTag>(pairSpan, new TextMarkerTag("blue")));
}
}
}