private static SnapshotPoint GetBlockHeaderStartPoint(ITextView view, ITextSnapshotLine caretLine, IViewTagAggregatorFactoryService tagAggregatorService)
{
var snapshot = caretLine.Snapshot;
var aggregator = tagAggregatorService.CreateTagAggregator <IClassificationTag>(view);
var line = caretLine;
int closeBraceCount = 1; //Using this like a stack.
while (line.LineNumber - 1 > 0 && closeBraceCount > 0)
{
string lineText = line.GetText();
if (lineText.Contains("}"))
{
int index = lineText.IndexOf("}");
while (index >= 0 && line.Start + index < view.Caret.Position.BufferPosition)
{
if (!TagUtils.isStringOrComment(line, index, aggregator))
{
closeBraceCount++;
}
index = lineText.IndexOf("}", index + 1);
}
}
if (lineText.Contains("{"))
{
int index = lineText.IndexOf("{");
while (index >= 0 && line.Start + index < view.Caret.Position.BufferPosition)
{
if (!TagUtils.isStringOrComment(line, index, aggregator))
{
closeBraceCount--;
}
index = lineText.IndexOf("{", index + 1);
}
}
if (closeBraceCount > 0)
{
line = snapshot.GetLineFromLineNumber(line.LineNumber - 1);
}
}
int startLineNumber = (line.GetText().Trim().Length != 1 && TagUtils.ContainsTag(line, "keyword", aggregator)) || line.LineNumber == 0
? line.LineNumber
: line.LineNumber - 1;
return(line.LineNumber == 1 || caretLine.Snapshot != view.TextSnapshot
? line.Start
: caretLine.Snapshot.GetLineFromLineNumber(startLineNumber).Start);
}
private static SnapshotPoint GetBlockEndPoint(ITextView view, ITextSnapshotLine caretLine, IViewTagAggregatorFactoryService tagAggregatorService)
{
var snapshot = caretLine.Snapshot;
var aggregator = tagAggregatorService.CreateTagAggregator <IClassificationTag>(view);
var line = caretLine;
string lineText;
int openBraceCount = 1; //Using this like a stack.
while (line.LineNumber < snapshot.LineCount - 1 && openBraceCount > 0)
{
lineText = line.GetText();
if (lineText.Contains("{"))
{
int index = lineText.IndexOf("{");
while (index >= 0 && line.Start + index >= view.Caret.Position.BufferPosition)
{
if (!TagUtils.isStringOrComment(line, index, aggregator))
{
openBraceCount++;
}
index = lineText.IndexOf("{", index + 1);
}
}
if (lineText.Contains("}"))
{
int index = lineText.IndexOf("}");
while (index >= 0 && line.Start + index >= view.Caret.Position.BufferPosition)
{
if (!TagUtils.isStringOrComment(line, index, aggregator))
{
openBraceCount--;
}
index = lineText.IndexOf("}", index + 1);
}
}
if (openBraceCount > 0)
{
line = snapshot.GetLineFromLineNumber(line.LineNumber + 1);
}
}
lineText = line.GetText();
return(lineText.Contains("}")
? new SnapshotPoint(snapshot, line.Start + lineText.IndexOf("}") + 1)
: new SnapshotPoint(snapshot, snapshot.Length - 1));
}