Exemplo n.º 1
0
        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));
                }
            }
        }
Exemplo n.º 2
0
        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")));
                }
            }
        }