public void Initialize()
{
_tokenizer = new Tokenizer();
_tokenizedBufferEntity = new Entity<LinkedList<Token>>();
_clojureSmartIndent = new ClojureSmartIndent(_tokenizedBufferEntity);
_defaultOptions = new EditorOptions(4);
}
public void Format(EditorOptions editorOptions)
{
StringBuilder output = new StringBuilder();
_currentToken = _tokenizedBuffer.CurrentState.First;
_dataStructureStack = new Stack<Token>();
_indentStack = new Stack<int>();
while (_currentToken != null)
{
string tokenText = _currentToken.Value.Text;
if (_currentToken.Value.Type.IsBraceStart()) _dataStructureStack.Push(_currentToken.Value);
if (_currentToken.Value.Type.IsBraceEnd() && _dataStructureStack.Count > 0 && _dataStructureStack.Peek().Type.MatchingBraceType() == _currentToken.Value.Type) _dataStructureStack.Pop();
if (_currentToken.Value.Type == TokenType.Whitespace)
{
bool moreThanOneLineBreak = tokenText.Replace(" ", "").Contains("\r\n\r\n");
bool hasAtLeastOneLineBreak = tokenText.Replace(" ", "").Contains("\r\n");
if (_currentToken.Previous == null) tokenText = "";
else if (_currentToken.Next == null) tokenText = "";
else if (_currentToken.Next.Value.Type == TokenType.Comment && !tokenText.Contains("\r\n")) tokenText = " ";
else if (_dataStructureStack.Count == 0 && IsPreviousTokenACommentOnTheSameLineAsExpression()) tokenText = "\r\n\r\n";
else if (_dataStructureStack.Count == 0 && _currentToken.Previous.Value.Type != TokenType.Comment) tokenText = "\r\n\r\n";
else if (_dataStructureStack.Count == 0) tokenText = moreThanOneLineBreak ? "\r\n\r\n" : hasAtLeastOneLineBreak ? "\r\n" : "";
else if (_currentToken.Next.Value.Type == TokenType.Comment && !tokenText.EndsWith(" ")) tokenText = "\r\n";
else if (tokenText.Contains("\r\n")) tokenText = "\r\n" + GetIndent(editorOptions);
else if (_currentToken.Next.Value.Type.IsBraceEnd()) tokenText = "";
else if (_currentToken.Previous.Value.Type.IsBraceStart()) tokenText = "";
else tokenText = " ";
}
else if (_currentToken.Next != null && _currentToken.Next.Value.Type != TokenType.Whitespace)
{
if (_currentToken.Next.Value.Type == TokenType.Comment) tokenText += " ";
else if (_dataStructureStack.Count == 0) tokenText += "\r\n\r\n";
else if (!_currentToken.Value.Type.IsBrace() && !_currentToken.Next.Value.Type.IsBrace()) tokenText += " ";
}
if (tokenText.Contains("\r\n")) _currentLineIndex = tokenText.Count(' ');
else _currentLineIndex += tokenText.Length;
if (_currentToken.Value.Type.IsBraceStart()) _indentStack.Push(_currentLineIndex - tokenText.Count(' '));
else if (_indentStack.Count > _dataStructureStack.Count) _indentStack.Pop();
_currentToken = _currentToken.Next;
output.Append(tokenText);
}
_textBuffer.SetText(output.ToString());
}
public int GetDesiredIndentation(int position, EditorOptions options)
{
if (_tokenizedBuffer.CurrentState.Count == 0) return 0;
IndexTokenNode currentToken = _tokenizedBuffer.CurrentState.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 + options.IndentSize;
return previousIndentAmount + previousLineLength + 1;
}
private string GetIndent(EditorOptions editorOptions)
{
if (_dataStructureStack.Count == 0) return "";
if (_dataStructureStack.Peek().Type == TokenType.ListStart) return " ".Repeat(editorOptions.IndentSize + _indentStack.Peek() - 1);
return " ".Repeat(_indentStack.Peek());
}