public MatchingBracePair FindMatchingBraces(LinkedList<Token> buffer, int totalBufferLength, int caretPosition)
{
IndexTokenNode tokenNode = buffer.FindTokenAtIndex(caretPosition);
if (tokenNode == null) return new MatchingBracePair(null, null);
IndexTokenNode previousNode = tokenNode.Previous();
if (totalBufferLength == caretPosition && tokenNode.IndexToken.Token.Type.IsBraceEnd())
{
return FindMatchingBracePair(tokenNode);
}
if (previousNode != null && previousNode.IndexToken.Token.Type.IsBraceEnd() && caretPosition == tokenNode.IndexToken.StartIndex)
{
return FindMatchingBracePair(previousNode);
}
if (tokenNode.IndexToken.Token.Type.IsBraceStart()) return FindMatchingBracePair(tokenNode);
return new MatchingBracePair(null, null);
}
public int GetDesiredIndentation(LinkedList<Token> buffer, int position, int indentAmount)
{
if (buffer.Count == 0) return 0;
IndexTokenNode currentToken = buffer.FindTokenAtIndex(position);
currentToken = currentToken.Previous();
IndexTokenNode firstOpenBrace = null;
int braceCount = 0;
while (currentToken != null && firstOpenBrace == null)
{
if (currentToken.IndexToken.Token.Type.IsBraceEnd()) braceCount--;
if (currentToken.IndexToken.Token.Type.IsBraceStart()) braceCount++;
if (braceCount == 1) firstOpenBrace = currentToken;
else currentToken = currentToken.Previous();
}
if (firstOpenBrace == null) return 0;
int previousLineLength = 0;
IndexTokenNode startOfLine = firstOpenBrace.Previous();
while (startOfLine != null && (startOfLine.IndexToken.Token.Type != TokenType.Whitespace || (startOfLine.IndexToken.Token.Type == TokenType.Whitespace && !startOfLine.IndexToken.Token.Text.Contains("\n"))))
{
previousLineLength += startOfLine.IndexToken.Token.Length;
startOfLine = startOfLine.Previous();
}
int previousIndentAmount = 0;
if (startOfLine != null)
{
string startOfLineText = startOfLine.Node.Value.Text;
string lineWhitespaceWithoutIndent = startOfLineText.TrimEnd(new[] {' '});
previousIndentAmount = startOfLineText.Length - lineWhitespaceWithoutIndent.Length;
}
if (firstOpenBrace.Node.Value.Type == TokenType.ListStart) return previousIndentAmount + previousLineLength + indentAmount;
return previousIndentAmount + previousLineLength + 1;
}
