1 files changed, 463 insertions, 518 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/ExpressionParser.cpp b/Source/Core/InputCommon/ControllerInterface/ExpressionParser.cpp
index bcb2c95a96..a87bdf8d35 100644
--- a/Source/Core/InputCommon/ControllerInterface/ExpressionParser.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/ExpressionParser.cpp
@@ -17,601 +17,546 @@ namespace ciface
 {
 namespace ExpressionParser
 {
-
 enum TokenType
 {
-	TOK_DISCARD,
-	TOK_INVALID,
-	TOK_EOF,
-	TOK_LPAREN,
-	TOK_RPAREN,
-	TOK_AND,
-	TOK_OR,
-	TOK_NOT,
-	TOK_ADD,
-	TOK_CONTROL,
+  TOK_DISCARD,
+  TOK_INVALID,
+  TOK_EOF,
+  TOK_LPAREN,
+  TOK_RPAREN,
+  TOK_AND,
+  TOK_OR,
+  TOK_NOT,
+  TOK_ADD,
+  TOK_CONTROL,
 };
 
 inline std::string OpName(TokenType op)
 {
-	switch (op)
-	{
-	case TOK_AND:
-		return "And";
-	case TOK_OR:
-		return "Or";
-	case TOK_NOT:
-		return "Not";
-	case TOK_ADD:
-		return "Add";
-	default:
-		assert(false);
-		return "";
-	}
+  switch (op)
+  {
+  case TOK_AND:
+    return "And";
+  case TOK_OR:
+    return "Or";
+  case TOK_NOT:
+    return "Not";
+  case TOK_ADD:
+    return "Add";
+  default:
+    assert(false);
+    return "";
+  }
 }
 
 class Token
 {
 public:
-	TokenType type;
-	ControlQualifier qualifier;
-
-	Token(TokenType type_) : type(type_) {}
-	Token(TokenType type_, ControlQualifier qualifier_) : type(type_), qualifier(qualifier_) {}
-
-	operator std::string()
-	{
-		switch (type)
-		{
-		case TOK_DISCARD:
-			return "Discard";
-		case TOK_EOF:
-			return "EOF";
-		case TOK_LPAREN:
-			return "(";
-		case TOK_RPAREN:
-			return ")";
-		case TOK_AND:
-			return "&";
-		case TOK_OR:
-			return "|";
-		case TOK_NOT:
-			return "!";
-		case TOK_ADD:
-			return "+";
-		case TOK_CONTROL:
-			return "Device(" + (std::string)qualifier + ")";
-		case TOK_INVALID:
-			break;
-		}
-
-		return "Invalid";
-	}
+  TokenType type;
+  ControlQualifier qualifier;
+
+  Token(TokenType type_) : type(type_) {}
+  Token(TokenType type_, ControlQualifier qualifier_) : type(type_), qualifier(qualifier_) {}
+  operator std::string()
+  {
+    switch (type)
+    {
+    case TOK_DISCARD:
+      return "Discard";
+    case TOK_EOF:
+      return "EOF";
+    case TOK_LPAREN:
+      return "(";
+    case TOK_RPAREN:
+      return ")";
+    case TOK_AND:
+      return "&";
+    case TOK_OR:
+      return "|";
+    case TOK_NOT:
+      return "!";
+    case TOK_ADD:
+      return "+";
+    case TOK_CONTROL:
+      return "Device(" + (std::string)qualifier + ")";
+    case TOK_INVALID:
+      break;
+    }
+
+    return "Invalid";
+  }
 };
 
-class Lexer {
+class Lexer
+{
 public:
-	std::string expr;
-	std::string::iterator it;
-
-	Lexer(const std::string& expr_) : expr(expr_)
-	{
-		it = expr.begin();
-	}
-
-	bool FetchBacktickString(std::string &value, char otherDelim = 0)
-	{
-		value = "";
-		while (it != expr.end())
-		{
-			char c = *it;
-			++it;
-			if (c == '`')
-				return false;
-			if (c > 0 && c == otherDelim)
-				return true;
-			value += c;
-		}
-		return false;
-	}
-
-	Token GetFullyQualifiedControl()
-	{
-		ControlQualifier qualifier;
-		std::string value;
-
-		if (FetchBacktickString(value, ':'))
-		{
-			// Found colon, this is the device name
-			qualifier.has_device = true;
-			qualifier.device_qualifier.FromString(value);
-			FetchBacktickString(value);
-		}
-
-		qualifier.control_name = value;
-
-		return Token(TOK_CONTROL, qualifier);
-	}
-
-	Token GetBarewordsControl(char c)
-	{
-		std::string name;
-		name += c;
-
-		while (it != expr.end())
-		{
-			c = *it;
-			if (!isalpha(c))
-				break;
-			name += c;
-			++it;
-		}
-
-		ControlQualifier qualifier;
-		qualifier.control_name = name;
-		return Token(TOK_CONTROL, qualifier);
-	}
-
-	Token NextToken()
-	{
-		if (it == expr.end())
-			return Token(TOK_EOF);
-
-		char c = *it++;
-		switch (c)
-		{
-		case ' ':
-		case '\t':
-		case '\n':
-		case '\r':
-			return Token(TOK_DISCARD);
-		case '(':
-			return Token(TOK_LPAREN);
-		case ')':
-			return Token(TOK_RPAREN);
-		case '&':
-			return Token(TOK_AND);
-		case '|':
-			return Token(TOK_OR);
-		case '!':
-			return Token(TOK_NOT);
-		case '+':
-			return Token(TOK_ADD);
-		case '`':
-			return GetFullyQualifiedControl();
-		default:
-			if (isalpha(c))
-				return GetBarewordsControl(c);
-			else
-				return Token(TOK_INVALID);
-		}
-	}
-
-	ExpressionParseStatus Tokenize(std::vector<Token> &tokens)
-	{
-		while (true)
-		{
-			Token tok = NextToken();
-
-			if (tok.type == TOK_DISCARD)
-				continue;
-
-			if (tok.type == TOK_INVALID)
-			{
-				tokens.clear();
-				return EXPRESSION_PARSE_SYNTAX_ERROR;
-			}
-
-			tokens.push_back(tok);
-
-			if (tok.type == TOK_EOF)
-				break;
-		}
-		return EXPRESSION_PARSE_SUCCESS;
-	}
+  std::string expr;
+  std::string::iterator it;
+
+  Lexer(const std::string& expr_) : expr(expr_) { it = expr.begin(); }
+  bool FetchBacktickString(std::string& value, char otherDelim = 0)
+  {
+    value = "";
+    while (it != expr.end())
+    {
+      char c = *it;
+      ++it;
+      if (c == '`')
+        return false;
+      if (c > 0 && c == otherDelim)
+        return true;
+      value += c;
+    }
+    return false;
+  }
+
+  Token GetFullyQualifiedControl()
+  {
+    ControlQualifier qualifier;
+    std::string value;
+
+    if (FetchBacktickString(value, ':'))
+    {
+      // Found colon, this is the device name
+      qualifier.has_device = true;
+      qualifier.device_qualifier.FromString(value);
+      FetchBacktickString(value);
+    }
+
+    qualifier.control_name = value;
+
+    return Token(TOK_CONTROL, qualifier);
+  }
+
+  Token GetBarewordsControl(char c)
+  {
+    std::string name;
+    name += c;
+
+    while (it != expr.end())
+    {
+      c = *it;
+      if (!isalpha(c))
+        break;
+      name += c;
+      ++it;
+    }
+
+    ControlQualifier qualifier;
+    qualifier.control_name = name;
+    return Token(TOK_CONTROL, qualifier);
+  }
+
+  Token NextToken()
+  {
+    if (it == expr.end())
+      return Token(TOK_EOF);
+
+    char c = *it++;
+    switch (c)
+    {
+    case ' ':
+    case '\t':
+    case '\n':
+    case '\r':
+      return Token(TOK_DISCARD);
+    case '(':
+      return Token(TOK_LPAREN);
+    case ')':
+      return Token(TOK_RPAREN);
+    case '&':
+      return Token(TOK_AND);
+    case '|':
+      return Token(TOK_OR);
+    case '!':
+      return Token(TOK_NOT);
+    case '+':
+      return Token(TOK_ADD);
+    case '`':
+      return GetFullyQualifiedControl();
+    default:
+      if (isalpha(c))
+        return GetBarewordsControl(c);
+      else
+        return Token(TOK_INVALID);
+    }
+  }
+
+  ExpressionParseStatus Tokenize(std::vector<Token>& tokens)
+  {
+    while (true)
+    {
+      Token tok = NextToken();
+
+      if (tok.type == TOK_DISCARD)
+        continue;
+
+      if (tok.type == TOK_INVALID)
+      {
+        tokens.clear();
+        return EXPRESSION_PARSE_SYNTAX_ERROR;
+      }
+
+      tokens.push_back(tok);
+
+      if (tok.type == TOK_EOF)
+        break;
+    }
+    return EXPRESSION_PARSE_SUCCESS;
+  }
 };
 
 class ExpressionNode
 {
 public:
-	virtual ~ExpressionNode() {}
-	virtual ControlState GetValue() { return 0; }
-	virtual void SetValue(ControlState state) {}
-	virtual int CountNumControls() { return 0; }
-	virtual operator std::string() { return ""; }
+  virtual ~ExpressionNode() {}
+  virtual ControlState GetValue() { return 0; }
+  virtual void SetValue(ControlState state) {}
+  virtual int CountNumControls() { return 0; }
+  virtual operator std::string() { return ""; }
 };
 
 class DummyExpression : public ExpressionNode
 {
 public:
-	std::string name;
-
-	DummyExpression(const std::string& name_) : name(name_) {}
-
-	ControlState GetValue() override
-	{
-		return 0.0;
-	}
-
-	void SetValue(ControlState value) override
-	{
-	}
+  std::string name;
 
-	int CountNumControls() override
-	{
-		return 0;
-	}
-
-	operator std::string() override
-	{
-		return "`" + name + "`";
-	}
+  DummyExpression(const std::string& name_) : name(name_) {}
+  ControlState GetValue() override { return 0.0; }
+  void SetValue(ControlState value) override {}
+  int CountNumControls() override { return 0; }
+  operator std::string() override { return "`" + name + "`"; }
 };
 
 class ControlExpression : public ExpressionNode
 {
 public:
-	ControlQualifier qualifier;
-	Device::Control *control;
-
-	ControlExpression(ControlQualifier qualifier_, Device::Control *control_) : qualifier(qualifier_), control(control_) {}
-
-	ControlState GetValue() override
-	{
-		return control->ToInput()->GetGatedState();
-	}
-
-	void SetValue(ControlState value) override
-	{
-		control->ToOutput()->SetGatedState(value);
-	}
-
-	int CountNumControls() override
-	{
-		return 1;
-	}
-
-	operator std::string() override
-	{
-		return "`" + (std::string)qualifier + "`";
-	}
+  ControlQualifier qualifier;
+  Device::Control* control;
+
+  ControlExpression(ControlQualifier qualifier_, Device::Control* control_)
+      : qualifier(qualifier_), control(control_)
+  {
+  }
+
+  ControlState GetValue() override { return control->ToInput()->GetGatedState(); }
+  void SetValue(ControlState value) override { control->ToOutput()->SetGatedState(value); }
+  int CountNumControls() override { return 1; }
+  operator std::string() override { return "`" + (std::string)qualifier + "`"; }
 };
 
 class BinaryExpression : public ExpressionNode
 {
 public:
-	TokenType op;
-	ExpressionNode *lhs;
-	ExpressionNode *rhs;
-
-	BinaryExpression(TokenType op_, ExpressionNode *lhs_, ExpressionNode *rhs_) : op(op_), lhs(lhs_), rhs(rhs_) {}
-	virtual ~BinaryExpression()
-	{
-		delete lhs;
-		delete rhs;
-	}
-
-	ControlState GetValue() override
-	{
-		ControlState lhsValue = lhs->GetValue();
-		ControlState rhsValue = rhs->GetValue();
-		switch (op)
-		{
-		case TOK_AND:
-			return std::min(lhsValue, rhsValue);
-		case TOK_OR:
-			return std::max(lhsValue, rhsValue);
-		case TOK_ADD:
-			return std::min(lhsValue + rhsValue, 1.0);
-		default:
-			assert(false);
-			return 0;
-		}
-	}
-
-	void SetValue(ControlState value) override
-	{
-		// Don't do anything special with the op we have.
-		// Treat "A & B" the same as "A | B".
-		lhs->SetValue(value);
-		rhs->SetValue(value);
-	}
-
-	int CountNumControls() override
-	{
-		return lhs->CountNumControls() + rhs->CountNumControls();
-	}
-
-	operator std::string() override
-	{
-		return OpName(op) + "(" + (std::string)(*lhs) + ", " + (std::string)(*rhs) + ")";
-	}
+  TokenType op;
+  ExpressionNode* lhs;
+  ExpressionNode* rhs;
+
+  BinaryExpression(TokenType op_, ExpressionNode* lhs_, ExpressionNode* rhs_)
+      : op(op_), lhs(lhs_), rhs(rhs_)
+  {
+  }
+  virtual ~BinaryExpression()
+  {
+    delete lhs;
+    delete rhs;
+  }
+
+  ControlState GetValue() override
+  {
+    ControlState lhsValue = lhs->GetValue();
+    ControlState rhsValue = rhs->GetValue();
+    switch (op)
+    {
+    case TOK_AND:
+      return std::min(lhsValue, rhsValue);
+    case TOK_OR:
+      return std::max(lhsValue, rhsValue);
+    case TOK_ADD:
+      return std::min(lhsValue + rhsValue, 1.0);
+    default:
+      assert(false);
+      return 0;
+    }
+  }
+
+  void SetValue(ControlState value) override
+  {
+    // Don't do anything special with the op we have.
+    // Treat "A & B" the same as "A | B".
+    lhs->SetValue(value);
+    rhs->SetValue(value);
+  }
+
+  int CountNumControls() override { return lhs->CountNumControls() + rhs->CountNumControls(); }
+  operator std::string() override
+  {
+    return OpName(op) + "(" + (std::string)(*lhs) + ", " + (std::string)(*rhs) + ")";
+  }
 };
 
 class UnaryExpression : public ExpressionNode
 {
 public:
-	TokenType op;
-	ExpressionNode *inner;
-
-	UnaryExpression(TokenType op_, ExpressionNode *inner_) : op(op_), inner(inner_) {}
-	virtual ~UnaryExpression()
-	{
-		delete inner;
-	}
-
-	ControlState GetValue() override
-	{
-		ControlState value = inner->GetValue();
-		switch (op)
-		{
-		case TOK_NOT:
-			return 1.0 - value;
-		default:
-			assert(false);
-			return 0;
-		}
-	}
-
-	void SetValue(ControlState value) override
-	{
-		switch (op)
-		{
-		case TOK_NOT:
-			inner->SetValue(1.0 - value);
-			break;
-
-		default:
-			assert(false);
-		}
-	}
-
-	int CountNumControls() override
-	{
-		return inner->CountNumControls();
-	}
-
-	operator std::string() override
-	{
-		return OpName(op) + "(" + (std::string)(*inner) + ")";
-	}
+  TokenType op;
+  ExpressionNode* inner;
+
+  UnaryExpression(TokenType op_, ExpressionNode* inner_) : op(op_), inner(inner_) {}
+  virtual ~UnaryExpression() { delete inner; }
+  ControlState GetValue() override
+  {
+    ControlState value = inner->GetValue();
+    switch (op)
+    {
+    case TOK_NOT:
+      return 1.0 - value;
+    default:
+      assert(false);
+      return 0;
+    }
+  }
+
+  void SetValue(ControlState value) override
+  {
+    switch (op)
+    {
+    case TOK_NOT:
+      inner->SetValue(1.0 - value);
+      break;
+
+    default:
+      assert(false);
+    }
+  }
+
+  int CountNumControls() override { return inner->CountNumControls(); }
+  operator std::string() override { return OpName(op) + "(" + (std::string)(*inner) + ")"; }
 };
 
-Device *ControlFinder::FindDevice(ControlQualifier qualifier)
+Device* ControlFinder::FindDevice(ControlQualifier qualifier)
 {
-	if (qualifier.has_device)
-		return container.FindDevice(qualifier.device_qualifier);
-	else
-		return container.FindDevice(default_device);
+  if (qualifier.has_device)
+    return container.FindDevice(qualifier.device_qualifier);
+  else
+    return container.FindDevice(default_device);
 }
 
-Device::Control *ControlFinder::FindControl(ControlQualifier qualifier)
+Device::Control* ControlFinder::FindControl(ControlQualifier qualifier)
 {
-	Device *device = FindDevice(qualifier);
-	if (!device)
-		return nullptr;
-
-	if (is_input)
-		return device->FindInput(qualifier.control_name);
-	else
-		return device->FindOutput(qualifier.control_name);
+  Device* device = FindDevice(qualifier);
+  if (!device)
+    return nullptr;
+
+  if (is_input)
+    return device->FindInput(qualifier.control_name);
+  else
+    return device->FindOutput(qualifier.control_name);
 }
 
 class Parser
 {
 public:
-
-	Parser(std::vector<Token> tokens_, ControlFinder &finder_) : tokens(tokens_), finder(finder_)
-	{
-		m_it = tokens.begin();
-	}
-
-	ExpressionParseStatus Parse(Expression **expr_out)
-	{
-		ExpressionNode *node;
-		ExpressionParseStatus status = Toplevel(&node);
-		if (status != EXPRESSION_PARSE_SUCCESS)
-			return status;
-
-		*expr_out = new Expression(node);
-		return EXPRESSION_PARSE_SUCCESS;
-	}
+  Parser(std::vector<Token> tokens_, ControlFinder& finder_) : tokens(tokens_), finder(finder_)
+  {
+    m_it = tokens.begin();
+  }
+
+  ExpressionParseStatus Parse(Expression** expr_out)
+  {
+    ExpressionNode* node;
+    ExpressionParseStatus status = Toplevel(&node);
+    if (status != EXPRESSION_PARSE_SUCCESS)
+      return status;
+
+    *expr_out = new Expression(node);
+    return EXPRESSION_PARSE_SUCCESS;
+  }
 
 private:
-	std::vector<Token> tokens;
-	std::vector<Token>::iterator m_it;
-	ControlFinder &finder;
-
-	Token Chew()
-	{
-		return *m_it++;
-	}
-
-	Token Peek()
-	{
-		return *m_it;
-	}
-
-	bool Expects(TokenType type)
-	{
-		Token tok = Chew();
-		return tok.type == type;
-	}
-
-	ExpressionParseStatus Atom(ExpressionNode **expr_out)
-	{
-		Token tok = Chew();
-		switch (tok.type)
-		{
-		case TOK_CONTROL:
-			{
-				Device::Control *control = finder.FindControl(tok.qualifier);
-				if (control == nullptr)
-				{
-					*expr_out = new DummyExpression(tok.qualifier);
-					return EXPRESSION_PARSE_SUCCESS;
-				}
-
-				*expr_out = new ControlExpression(tok.qualifier, control);
-				return EXPRESSION_PARSE_SUCCESS;
-			}
-		case TOK_LPAREN:
-			return Paren(expr_out);
-		default:
-			return EXPRESSION_PARSE_SYNTAX_ERROR;
-		}
-	}
-
-	bool IsUnaryExpression(TokenType type)
-	{
-		switch (type)
-		{
-		case TOK_NOT:
-			return true;
-		default:
-			return false;
-		}
-	}
-
-	ExpressionParseStatus Unary(ExpressionNode **expr_out)
-	{
-		ExpressionParseStatus status;
-
-		if (IsUnaryExpression(Peek().type))
-		{
-			Token tok = Chew();
-			ExpressionNode *atom_expr;
-			if ((status = Atom(&atom_expr)) != EXPRESSION_PARSE_SUCCESS)
-				return status;
-			*expr_out = new UnaryExpression(tok.type, atom_expr);
-			return EXPRESSION_PARSE_SUCCESS;
-		}
-
-		return Atom(expr_out);
-	}
-
-	bool IsBinaryToken(TokenType type)
-	{
-		switch (type)
-		{
-		case TOK_AND:
-		case TOK_OR:
-		case TOK_ADD:
-			return true;
-		default:
-			return false;
-		}
-	}
-
-	ExpressionParseStatus Binary(ExpressionNode **expr_out)
-	{
-		ExpressionParseStatus status;
-
-		if ((status = Unary(expr_out)) != EXPRESSION_PARSE_SUCCESS)
-			return status;
-
-		while (IsBinaryToken(Peek().type))
-		{
-			Token tok = Chew();
-			ExpressionNode *unary_expr;
-			if ((status = Unary(&unary_expr)) != EXPRESSION_PARSE_SUCCESS)
-			{
-				delete *expr_out;
-				return status;
-			}
-
-			*expr_out = new BinaryExpression(tok.type, *expr_out, unary_expr);
-		}
-
-		return EXPRESSION_PARSE_SUCCESS;
-	}
-
-	ExpressionParseStatus Paren(ExpressionNode **expr_out)
-	{
-		ExpressionParseStatus status;
-
-		// lparen already chewed
-		if ((status = Toplevel(expr_out)) != EXPRESSION_PARSE_SUCCESS)
-			return status;
-
-		if (!Expects(TOK_RPAREN))
-		{
-			delete *expr_out;
-			return EXPRESSION_PARSE_SYNTAX_ERROR;
-		}
-
-		return EXPRESSION_PARSE_SUCCESS;
-	}
-
-	ExpressionParseStatus Toplevel(ExpressionNode **expr_out)
-	{
-		return Binary(expr_out);
-	}
+  std::vector<Token> tokens;
+  std::vector<Token>::iterator m_it;
+  ControlFinder& finder;
+
+  Token Chew() { return *m_it++; }
+  Token Peek() { return *m_it; }
+  bool Expects(TokenType type)
+  {
+    Token tok = Chew();
+    return tok.type == type;
+  }
+
+  ExpressionParseStatus Atom(ExpressionNode** expr_out)
+  {
+    Token tok = Chew();
+    switch (tok.type)
+    {
+    case TOK_CONTROL:
+    {
+      Device::Control* control = finder.FindControl(tok.qualifier);
+      if (control == nullptr)
+      {
+        *expr_out = new DummyExpression(tok.qualifier);
+        return EXPRESSION_PARSE_SUCCESS;
+      }
+
+      *expr_out = new ControlExpression(tok.qualifier, control);
+      return EXPRESSION_PARSE_SUCCESS;
+    }
+    case TOK_LPAREN:
+      return Paren(expr_out);
+    default:
+      return EXPRESSION_PARSE_SYNTAX_ERROR;
+    }
+  }
+
+  bool IsUnaryExpression(TokenType type)
+  {
+    switch (type)
+    {
+    case TOK_NOT:
+      return true;
+    default:
+      return false;
+    }
+  }
+
+  ExpressionParseStatus Unary(ExpressionNode** expr_out)
+  {
+    ExpressionParseStatus status;
+
+    if (IsUnaryExpression(Peek().type))
+    {
+      Token tok = Chew();
+      ExpressionNode* atom_expr;
+      if ((status = Atom(&atom_expr)) != EXPRESSION_PARSE_SUCCESS)
+        return status;
+      *expr_out = new UnaryExpression(tok.type, atom_expr);
+      return EXPRESSION_PARSE_SUCCESS;
+    }
+
+    return Atom(expr_out);
+  }
+
+  bool IsBinaryToken(TokenType type)
+  {
+    switch (type)
+    {
+    case TOK_AND:
+    case TOK_OR:
+    case TOK_ADD:
+      return true;
+    default:
+      return false;
+    }
+  }
+
+  ExpressionParseStatus Binary(ExpressionNode** expr_out)
+  {
+    ExpressionParseStatus status;
+
+    if ((status = Unary(expr_out)) != EXPRESSION_PARSE_SUCCESS)
+      return status;
+
+    while (IsBinaryToken(Peek().type))
+    {
+      Token tok = Chew();
+      ExpressionNode* unary_expr;
+      if ((status = Unary(&unary_expr)) != EXPRESSION_PARSE_SUCCESS)
+      {
+        delete *expr_out;
+        return status;
+      }
+
+      *expr_out = new BinaryExpression(tok.type, *expr_out, unary_expr);
+    }
+
+    return EXPRESSION_PARSE_SUCCESS;
+  }
+
+  ExpressionParseStatus Paren(ExpressionNode** expr_out)
+  {
+    ExpressionParseStatus status;
+
+    // lparen already chewed
+    if ((status = Toplevel(expr_out)) != EXPRESSION_PARSE_SUCCESS)
+      return status;
+
+    if (!Expects(TOK_RPAREN))
+    {
+      delete *expr_out;
+      return EXPRESSION_PARSE_SYNTAX_ERROR;
+    }
+
+    return EXPRESSION_PARSE_SUCCESS;
+  }
+
+  ExpressionParseStatus Toplevel(ExpressionNode** expr_out) { return Binary(expr_out); }
 };
 
 ControlState Expression::GetValue()
 {
-	return node->GetValue();
+  return node->GetValue();
 }
 
 void Expression::SetValue(ControlState value)
 {
-	node->SetValue(value);
+  node->SetValue(value);
 }
 
-Expression::Expression(ExpressionNode *node_)
+Expression::Expression(ExpressionNode* node_)
 {
-	node = node_;
-	num_controls = node->CountNumControls();
+  node = node_;
+  num_controls = node->CountNumControls();
 }
 
 Expression::~Expression()
 {
-	delete node;
+  delete node;
 }
 
-static ExpressionParseStatus ParseExpressionInner(const std::string& str, ControlFinder &finder, Expression **expr_out)
+static ExpressionParseStatus ParseExpressionInner(const std::string& str, ControlFinder& finder,
+                                                  Expression** expr_out)
 {
-	ExpressionParseStatus status;
-	Expression *expr;
-	*expr_out = nullptr;
-
-	if (str == "")
-		return EXPRESSION_PARSE_SUCCESS;
-
-	Lexer l(str);
-	std::vector<Token> tokens;
-	status = l.Tokenize(tokens);
-	if (status != EXPRESSION_PARSE_SUCCESS)
-		return status;
-
-	Parser p(tokens, finder);
-	status = p.Parse(&expr);
-	if (status != EXPRESSION_PARSE_SUCCESS)
-		return status;
-
-	*expr_out = expr;
-	return EXPRESSION_PARSE_SUCCESS;
+  ExpressionParseStatus status;
+  Expression* expr;
+  *expr_out = nullptr;
+
+  if (str == "")
+    return EXPRESSION_PARSE_SUCCESS;
+
+  Lexer l(str);
+  std::vector<Token> tokens;
+  status = l.Tokenize(tokens);
+  if (status != EXPRESSION_PARSE_SUCCESS)
+    return status;
+
+  Parser p(tokens, finder);
+  status = p.Parse(&expr);
+  if (status != EXPRESSION_PARSE_SUCCESS)
+    return status;
+
+  *expr_out = expr;
+  return EXPRESSION_PARSE_SUCCESS;
 }
 
-ExpressionParseStatus ParseExpression(const std::string& str, ControlFinder &finder, Expression **expr_out)
+ExpressionParseStatus ParseExpression(const std::string& str, ControlFinder& finder,
+                                      Expression** expr_out)
 {
-	// Add compatibility with old simple expressions, which are simple
-	// barewords control names.
+  // Add compatibility with old simple expressions, which are simple
+  // barewords control names.
 
-	ControlQualifier qualifier;
-	qualifier.control_name = str;
-	qualifier.has_device = false;
+  ControlQualifier qualifier;
+  qualifier.control_name = str;
+  qualifier.has_device = false;
 
-	Device::Control *control = finder.FindControl(qualifier);
-	if (control)
-	{
-		*expr_out = new Expression(new ControlExpression(qualifier, control));
-		return EXPRESSION_PARSE_SUCCESS;
-	}
+  Device::Control* control = finder.FindControl(qualifier);
+  if (control)
+  {
+    *expr_out = new Expression(new ControlExpression(qualifier, control));
+    return EXPRESSION_PARSE_SUCCESS;
+  }
 
-	return ParseExpressionInner(str, finder, expr_out);
+  return ParseExpressionInner(str, finder, expr_out);
 }
-
 }
 }