public BracketSearchResult SearchBracket(TextDocument document, int offset)
{
if (offset > 0)
{
var c = document.GetCharAt(offset - 1);
int index = openingBrackets.IndexOf(c);
int otherOffset = -1;
if (index > -1)
{
otherOffset = SearchBracketForward(document, offset, openingBrackets[index], closingBrackets[index]);
}
index = closingBrackets.IndexOf(c);
if (index > -1)
{
otherOffset = SearchBracketBackward(document, offset - 2, openingBrackets[index], closingBrackets[index]);
}
if (otherOffset > -1)
{
var result = new BracketSearchResult(
Math.Min(offset - 1, otherOffset),
Math.Max(offset - 1, otherOffset));
SearchDefinition(document, result);
return(result);
}
}
return(null);
}
public void SetHighlight(BracketSearchResult result)
{
if (this.result != result)
{
this.result = result;
textView.InvalidateLayer(Layer);
}
}
void SearchDefinition(TextDocument document, BracketSearchResult result)
{
if (document.GetCharAt(result.OpeningOffset) != '{')
{
return;
}
// get line
var documentLine = document.GetLineByOffset(result.OpeningOffset);
while (documentLine != null && IsBracketOnly(document, documentLine))
{
documentLine = documentLine.PreviousLine;
}
if (documentLine != null)
{
result.DefinitionHeaderOffset = documentLine.Offset;
result.DefinitionHeaderLength = documentLine.Length;
}
}