X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2Fmoof%2Fscript.hh;h=0431f1afcebbe50e5942731074acef3ddf8e85f4;hp=35e80d22eb6a8e57cec4d2b81fc148249888b863;hb=HEAD;hpb=6f1b787a10d8ab1a3117a4b8c004dd2d90599608

diff --git a/src/moof/script.hh b/src/moof/script.hh
index 35e80d2..0431f1a 100644
--- a/src/moof/script.hh
+++ b/src/moof/script.hh
@@ -1,27 +1,15 @@
 
-/*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
+/*]  Copyright (c) 2009-2011, Charles McGarvey  [*****************************
 **]  All rights reserved.
 *
-* vi:ts=4 sw=4 tw=75
-*
 * Distributable under the terms and conditions of the 2-clause BSD license;
 * see the file COPYING for a complete text of the license.
 *
-**************************************************************************/
+*****************************************************************************/
 
 #ifndef _MOOF_SCRIPT_HH_
 #define _MOOF_SCRIPT_HH_
 
-/**
- * \file script.hh
- * A thin wrapper over Lua 5.1.  This is not meant as a complicated binding
- * package between C++ and Lua.  It is not meant to obscure the division
- * between C++ and Lua but rather to clarify it and make it more
- * manageable.  It does not hide the concept of the Lua stack, but rather
- * provides that mechanism with a certain level of abstraction while also
- * providing a cleaner, more consistent API.
- */
-
 #include <cstring>
 #include <iostream>
 #include <map>
@@ -37,13 +25,22 @@
 #include <lua.hpp>
 
 
+/**
+ * \file script.hh
+ * A thin wrapper over Lua 5.1.  This is not meant as a complicated binding
+ * package between C++ and Lua.  It is not meant to obscure the division
+ * between C++ and Lua but rather to clarify it and make it more manageable.
+ * It does not hide the concept of the Lua stack, but rather provides that
+ * mechanism with a certain level of abstraction while also providing a
+ * cleaner, more consistent API.
+ */
+
 namespace moof {
 
 
 class script;
 typedef boost::shared_ptr<script> script_ptr;
 
-
 class script
 {
 public:
@@ -53,13 +50,13 @@ public:
 
 	enum status
 	{
-		success			= 0,
-		yielding		= LUA_YIELD,
+		success		= 0,
+		yielding	= LUA_YIELD,
 		runtime_error	= LUA_ERRRUN,
 		syntax_error	= LUA_ERRSYNTAX,
 		memory_error	= LUA_ERRMEM,
 		handler_error	= LUA_ERRERR,
-		file_error		= LUA_ERRFILE
+		file_error	= LUA_ERRFILE
 	};
 
 	enum pseudoindex
@@ -69,7 +66,6 @@ public:
 		globals_index		= LUA_GLOBALSINDEX
 	};
 
-
 	template <class T>
 	static int object_finalizer(script& script)
 	{
@@ -77,88 +73,78 @@ public:
 		return 0;
 	}
 
-
 	/**
 	 * This is the most prominent abstraction on top of the standard Lua
 	 * API.  A slot object represents a value on the stack.  More
 	 * specifically, it represents a position on the stack.  The
 	 * distinction is only important when objects are moved around on the
 	 * stack or if the slot represents a negative index on the stack (the
-	 * value of which will change as things are pushed onto and popped from
-	 * the stack).
+	 * value of which will change as things are pushed onto and popped
+	 * from the stack).
 	 */
 	struct slot
 	{
 		/**
-		 * You have direct access to the index of the value on the stack
-		 * being represented.
+		 * You have direct access to the index of the value on the
+		 * stack being represented.
 		 */
 		int index;
 
-
 		enum type
 		{
-			none			= LUA_TNONE,
-			nil				= LUA_TNIL,
-			boolean			= LUA_TBOOLEAN,
-			light_data		= LUA_TLIGHTUSERDATA,
-			number			= LUA_TNUMBER,
-			string			= LUA_TSTRING,
-			table			= LUA_TTABLE,
-			function		= LUA_TFUNCTION,
-			data			= LUA_TUSERDATA,
-			thread			= LUA_TTHREAD
+			none		= LUA_TNONE,
+			nil		= LUA_TNIL,
+			boolean		= LUA_TBOOLEAN,
+			light_data	= LUA_TLIGHTUSERDATA,
+			number		= LUA_TNUMBER,
+			string		= LUA_TSTRING,
+			table		= LUA_TTABLE,
+			function	= LUA_TFUNCTION,
+			data		= LUA_TUSERDATA,
+			thread		= LUA_TTHREAD
 		};
 
 		static std::string type_name(type type)
 		{
 			switch (type)
 			{
-				case none:			return "none";
-				case nil:			return "nil";
-				case boolean:		return "boolean";
+				case none:	return "none";
+				case nil:	return "nil";
+				case boolean:	return "boolean";
 				case light_data:
-				case data:			return "userdata";
-				case number:		return "number";
-				case string:		return "string";
-				case table:			return "table";
-				case function:		return "function";
-				case thread:		return "thread";
+				case data:	return "userdata";
+				case number:	return "number";
+				case string:	return "string";
+				case table:	return "table";
+				case function:	return "function";
+				case thread:	return "thread";
 			}
 			return "?";
 		}
 
-
 		slot(const class script& s, int i = 0) :
 			index(i),
 			script_(const_cast<class script*>(&s)) {}
 
-
 		// check the type of the value
-		bool is_boolean() const
-		{ return (bool)lua_isboolean(script_->state_, index); }
-		bool is_imported_function() const
-		{ return (bool)lua_iscfunction(script_->state_, index); }
-		bool is_function() const
-		{ return (bool)lua_isfunction(script_->state_, index); }
-		bool is_nil() const
-		{ return (bool)lua_isnil(script_->state_, index); }
-		bool is_none() const
-		{ return (bool)lua_isnone(script_->state_, index); }
-		bool is_none_or_nil() const
-		{ return (bool)lua_isnoneornil(script_->state_, index); }
-		bool is_number() const
-		{ return (bool)lua_isnumber(script_->state_, index); }
-		bool is_string() const
-		{ return (bool)lua_isstring(script_->state_, index); }
-		bool is_table() const
-		{ return (bool)lua_istable(script_->state_, index); }
-		bool is_thread() const
-		{ return (bool)lua_isthread(script_->state_, index); }
-		bool is_data() const
-		{ return (bool)lua_isuserdata(script_->state_, index); }
-		bool is_light_data() const
-		{ return (bool)lua_islightuserdata(script_->state_, index); }
+#define IS_TYPE(T, N) \
+		bool is_##N() const \
+		{ \
+			return (bool)lua_is##T(script_->state_, index); \
+		}//
+		IS_TYPE(boolean, boolean);
+		IS_TYPE(cfunction, imported_function);
+		IS_TYPE(function, function);
+		IS_TYPE(lightuserdata, light_data);
+		IS_TYPE(nil, nil);
+		IS_TYPE(none, none);
+		IS_TYPE(noneornil, none_or_nil);
+		IS_TYPE(number, number);
+		IS_TYPE(string, string);
+		IS_TYPE(table, table);
+		IS_TYPE(thread, thread);
+		IS_TYPE(userdata, data);
+#undef IS_TYPE
 
 		/**
 		 * Check the value and throw an error if its the wrong type.
@@ -169,49 +155,25 @@ public:
 			return *this;
 		}
 
-		const slot& require_boolean(const std::string& what = "boolean") const
-		{
-			if (!is_boolean()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_number(const std::string& what = "number") const
-		{
-			if (!is_number()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_string(const std::string& what = "string") const
-		{
-			if (!is_string()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_table(const std::string& what = "table") const
-		{
-			if (!is_table()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_function(const std::string& what = "function") const
-		{
-			if (!is_function()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_data(const std::string& what = "userdata") const
-		{
-			if (!is_data()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_nil(const std::string& what = "nil") const
-		{
-			if (!is_nil()) raise_type_error(what);
-			return *this;
-		}
-		const slot& require_thread(const std::string& what = "thread") const
-		{
-			if (!is_thread()) raise_type_error(what);
-			return *this;
-		}
+#define REQUIRE_TYPE(T) \
+		const slot& require_##T(const std::string& what = #T) const \
+		{ \
+			if (!is_##T()) raise_type_error(what); \
+			return *this; \
+		}//
+		REQUIRE_TYPE(boolean);
+		REQUIRE_TYPE(number);
+		REQUIRE_TYPE(string);
+		REQUIRE_TYPE(table);
+		REQUIRE_TYPE(function);
+		REQUIRE_TYPE(data);
+		REQUIRE_TYPE(nil);
+		REQUIRE_TYPE(thread);
+#undef REQUIRE_TYPE
 
 		template <class T>
-		const slot& require_object(const std::string& what = typeid(T).name()) const
+		const slot&
+		require_object(const std::string& what = typeid(T).name()) const
 		{
 			if (!is_data()) raise_type_error(what);
 
@@ -235,7 +197,6 @@ public:
 			return *this;
 		}
 
-
 		/**
 		 * Get the type of the value.
 		 */
@@ -249,7 +210,10 @@ public:
 		 */
 		std::string type_name() const
 		{
-			if (is_none()) return "none";
+			if (is_none())
+			{
+				return "none";
+			}
 			else if (is_data() && !is_light_data())
 			{
 				slot metatable = push_metatable();
@@ -273,16 +237,14 @@ public:
 			return luaL_typename(script_->state_, index);
 		}
 
-
 		/**
-		 * Get the length of the value according to the definition given by
-		 * Lua.
+		 * Get the length of the value according to the definition
+		 * given by Lua.
 		 */
 		size_t size() const
 		{
 			return lua_objlen(script_->state_, index);
 		}
-
 		size_t length() const
 		{
 			return size();
@@ -290,11 +252,12 @@ public:
 
 		int positive_index() const
 		{
-			if (index < 0) return index + lua_gettop(script_->state_) + 1;
-			else           return index;
+			if (index < 0)
+				return index + lua_gettop(script_->state_) + 1;
+			else
+				return index;
 		}
 
-
 		/**
 		 * Get a pointer value (for userdata, tables, threads, and
 		 * functions).
@@ -314,31 +277,43 @@ public:
 			return !is_none();
 		}
 
-
 		bool operator == (const slot& rhs) const
 		{
-			return (bool)lua_equal(script_->state_, index, rhs.index);
+			return (bool)lua_equal(script_->state_,
+					index, rhs.index);
 		}
 
 		bool operator < (const slot& rhs) const
 		{
-			return (bool)lua_lessthan(script_->state_, index, rhs.index);
+			return (bool)lua_lessthan(script_->state_,
+					index, rhs.index);
 		}
 
-
 		/**
 		 * Convert the underlying value to a C++ type.
 		 */
-		template <class T>
-		bool get(T& value) const
-		{
-			if (is_number())
-			{
-				value = (T)lua_tointeger(script_->state_, index);
-				return true;
-			}
-			return false;
-		}
+
+#define GET_INT_OF_TYPE(T) \
+		bool get(T& value) const \
+		{ \
+			if (is_number()) \
+			{ \
+				value = static_cast<T>(lua_tointeger(script_->state_, index)); \
+				return true; \
+			} \
+			return false; \
+		}//
+		GET_INT_OF_TYPE(char);
+		GET_INT_OF_TYPE(unsigned char);
+		GET_INT_OF_TYPE(short);
+		GET_INT_OF_TYPE(unsigned short);
+		GET_INT_OF_TYPE(int);
+		GET_INT_OF_TYPE(unsigned int);
+		GET_INT_OF_TYPE(long);
+		GET_INT_OF_TYPE(unsigned long);
+		GET_INT_OF_TYPE(long long);
+		GET_INT_OF_TYPE(unsigned long long);
+#undef GET_INT_OF_TYPE
 
 		bool get(float& value) const
 		{
@@ -378,7 +353,6 @@ public:
 			}
 			return false;
 		}
-
 		bool get(std::string& value) const
 		{
 			const char*	str;
@@ -401,6 +375,16 @@ public:
 			}
 			return false;
 		}
+		template <class T>
+		bool get(T& value) const
+		{
+			if (is_data())
+			{
+				value = *reinterpret_cast<T*>(lua_touserdata(script_->state_, index));
+				return true;
+			}
+			return false;
+		}
 		void* get_data() const
 		{
 			return lua_touserdata(script_->state_, index);
@@ -414,7 +398,7 @@ public:
 			array.clear();
 
 			slot	value = (*script_)[-1];
-			int		realIndex = positive_index();
+			int	realIndex = positive_index();
 
 			bool done = false;
 			for (int i = 1; !done; ++i)
@@ -422,8 +406,10 @@ public:
 				lua_rawgeti(script_->state_, realIndex, i);
 
 				T v;
-				if (value.get(v)) array.push_back(v);
-				else              done = true;
+				if (value.get(v))
+					array.push_back(v);
+				else
+					done = true;
 
 				script_->pop();
 			}
@@ -440,7 +426,7 @@ public:
 
 			slot	key = (*script_)[-2];
 			slot	value = (*script_)[-1];
-			int		realIndex = positive_index();
+			int	realIndex = positive_index();
 
 			script_->push_nil();
 			while (lua_next(script_->state_, realIndex) != 0)
@@ -469,7 +455,6 @@ public:
 			return ret;
 		}
 
-
 		template <class T, class V>
 		void set_field(const T& field, const V& value)
 		{
@@ -483,7 +468,6 @@ public:
 			lua_settable(script_->state_, index);
 		}
 
-
 		void set_field(const std::string& field)
 		{
 			set_field(field.c_str());
@@ -493,7 +477,6 @@ public:
 			lua_setfield(script_->state_, index, field);
 		}
 
-
 		template <class T>
 		void set_field(const std::string& field, const T& value)
 		{
@@ -539,7 +522,6 @@ public:
 			set();
 		}
 
-
 		void remove()
 		{
 			lua_remove(script_->state_, index);
@@ -563,7 +545,6 @@ public:
 			lua_insert(script_->state_, index);
 		}
 
-
 		/**
 		 * Copy the value and push the copy to the stack.
 		 */
@@ -585,7 +566,6 @@ public:
 			return script_->top();
 		}
 
-
 		slot push_field() const
 		{
 			lua_gettable(script_->state_, index);
@@ -609,7 +589,6 @@ public:
 			return script_->top();
 		}
 
-
 		class script& script()
 		{
 			return *script_;
@@ -620,10 +599,9 @@ public:
 			return *script_;
 		}
 
-
 		/**
-		 * Throw an exception with a message formatted to communicate a
-		 * type mismatch with the argument represented by this slot.
+		 * Throw an exception with a message formatted to communicate
+		 * a type mismatch with the argument represented by this slot.
 		 */
 		int raise_type_error(const std::string& expected) const
 		{
@@ -653,13 +631,12 @@ public:
 
 			std::ostringstream stream;
 			stream << "bad argument " << index << " to '" << func
-				   << "' (" << message << ")";
+			       << "' (" << message << ")";
 
 			throw std::invalid_argument(stream.str());
 			return 0;
 		}
 
-
 	private:
 
 		mutable class script* script_;
@@ -677,7 +654,6 @@ public:
 		destroy();
 	}
 
-
 	static script_ptr alloc()
 	{
 		return script_ptr(new script);
@@ -689,7 +665,6 @@ public:
 		state_ = luaL_newstate();
 	}
 
-
 	void import_standard_libraries()
 	{
 		luaL_openlibs(state_);
@@ -721,64 +696,25 @@ public:
 		pop();
 	}
 
-	void import_base_library()
-	{
-		push(luaopen_base);
-		push(LUA_COLIBNAME);
-		call(1, 0);
-	}
-
-	void import_package_library()
-	{
-		push(luaopen_package);
-		push(LUA_LOADLIBNAME);
-		call(1, 0);
-	}
-
-	void import_string_library()
-	{
-		push(luaopen_string);
-		push(LUA_STRLIBNAME);
-		call(1, 0);
-	}
-
-	void import_table_library()
-	{
-		push(luaopen_table);
-		push(LUA_TABLIBNAME);
-		call(1, 0);
-	}
-
-	void import_math_library()
-	{
-		push(luaopen_math);
-		push(LUA_MATHLIBNAME);
-		call(1, 0);
-	}
-
-	void import_io_library()
-	{
-		push(luaopen_io);
-		push(LUA_IOLIBNAME);
-		call(1, 0);
-	}
-
-	void import_os_library()
-	{
-		push(luaopen_os);
-		push(LUA_OSLIBNAME);
-		call(1, 0);
-	}
-
-	void import_debug_library()
-	{
-		push(luaopen_debug);
-		push(LUA_DBLIBNAME);
-		call(1, 0);
-	}
-
-
-	void import_function(const std::string& name, const function& function)
+#define IMPORT_LIBRARY(L, K) \
+	void import_##L##_library() \
+	{ \
+		push(luaopen_##L); \
+		push(LUA_##K##LIBNAME); \
+		call(1, 0); \
+	}//
+	IMPORT_LIBRARY(base, CO);
+	IMPORT_LIBRARY(debug, DB);
+	IMPORT_LIBRARY(io, IO);
+	IMPORT_LIBRARY(math, MATH);
+	IMPORT_LIBRARY(os, OS);
+	IMPORT_LIBRARY(package, LOAD);
+	IMPORT_LIBRARY(string, STR);
+	IMPORT_LIBRARY(table, TAB);
+#undef IMPORT_LIBRARY
+
+	void
+	import_function(const std::string& name, const function& function)
 	{
 		push(function);
 		lua_setglobal(state_, name.c_str());
@@ -794,7 +730,6 @@ public:
 		return status(luaL_dofile(state_, file.c_str()));
 	}
 
-
 	/*
 	 * Thread-handling methods.
 	 */
@@ -832,7 +767,6 @@ public:
 		return is_main;
 	}
 
-
 	/**
 	 * Throw an error with the value at the top of the stack.  If this is
 	 * called from an imported function, the error will be caught and
@@ -855,7 +789,6 @@ public:
 		return 0;
 	}
 
-
 	/*
 	 * Get significant values.
 	 */
@@ -864,23 +797,19 @@ public:
 	{
 		return slot(*this, globals_index);
 	}
-
 	slot registry() const
 	{
 		return slot(*this, registry_index);
 	}
-
 	slot environment() const
 	{
 		return slot(*this, environment_index);
 	}
-
 	slot top() const
 	{
 		return slot(*this, stack_size());
 	}
 
-
 	/**
 	 * Set the size of the stack.
 	 * \param size The stack size.
@@ -908,7 +837,6 @@ public:
 		stack_size(0);
 	}
 
-
 	/**
 	 * Makes sure there is at least extra more places on the stack.
 	 * Returns false if space couldn't be created.  Just like with the
@@ -921,7 +849,6 @@ public:
 		return (bool)lua_checkstack(state_, extra);
 	}
 
-
 	/**
 	 * Concatenates the top-most n slots on the stack.
 	 */
@@ -930,61 +857,27 @@ public:
 		lua_concat(state_, n);
 	}
 
-
 	/*
 	 * Push some values onto the stack.
 	 */
 
-	slot push(char value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(unsigned char value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(short value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(unsigned short value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(int value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(unsigned int value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(long value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(unsigned long value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(long long value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
-	slot push(unsigned long long value)
-	{
-		lua_pushinteger(state_, lua_Integer(value));
-		return top();
-	}
+#define PUSH_INT_OF_TYPE(T) \
+	slot push(T value) \
+	{ \
+		lua_pushinteger(state_, static_cast<lua_Integer>(value)); \
+		return top(); \
+	}//
+	PUSH_INT_OF_TYPE(char);
+	PUSH_INT_OF_TYPE(unsigned char);
+	PUSH_INT_OF_TYPE(short);
+	PUSH_INT_OF_TYPE(unsigned short);
+	PUSH_INT_OF_TYPE(int);
+	PUSH_INT_OF_TYPE(unsigned int);
+	PUSH_INT_OF_TYPE(long);
+	PUSH_INT_OF_TYPE(unsigned long);
+	PUSH_INT_OF_TYPE(long long);
+	PUSH_INT_OF_TYPE(unsigned long long);
+#undef PUSH_INT_OF_TYPE
 
 	slot push(bool value)
 	{
@@ -1090,12 +983,10 @@ public:
 	}
 
 	slot push_code(const std::string& name,
-				   const char* buffer,
-				   size_t size,
-				   status& result)
+			const char* buffer, size_t size, status& result)
 	{
 		result = status(luaL_loadbuffer(state_,
-										buffer, size, name.c_str()));
+					buffer, size, name.c_str()));
 		return top();
 	}
 
@@ -1108,7 +999,8 @@ public:
 	template <class T>
 	slot push_pointer(const T* ptr)
 	{
-		lua_pushlightuserdata(state_, const_cast<void*>((const void*)ptr));
+		lua_pushlightuserdata(state_,
+				const_cast<void*>((const void*)ptr));
 		return top();
 	}
 	slot push_pointer(cfunction function)
@@ -1152,7 +1044,6 @@ public:
 		return push_pointer(&typeid(T));
 	}
 
-
 	/**
 	 * Call a function on the stack.  The correct procedure is to push a
 	 * function onto the stack followed by nargs arguments.  This method
@@ -1164,7 +1055,6 @@ public:
 		return status(lua_pcall(state_, nargs, nresults, 0));
 	}
 
-
 	/**
 	 * Pops n values from the top of the stack.
 	 */
@@ -1173,7 +1063,6 @@ public:
 		lua_pop(state_, n);
 	}
 
-
 	/**
 	 * Index into the stack to get a slot.
 	 */
@@ -1182,7 +1071,6 @@ public:
 		return slot(*this, index);
 	}
 
-
 	/*
 	 * Control over the garbage collection process.
 	 */
@@ -1218,7 +1106,6 @@ public:
 		lua_gc(state_, LUA_GCSETSTEPMUL, step);
 	}
 
-
 private:
 
 	script(lua_State* state) :
@@ -1237,15 +1124,12 @@ private:
 		slot metatable = push_metatable(typeid(T).name(), is_new);
 		if (is_new)
 		{
-			metatable.push_copy();				// class behavior
+			metatable.push_copy();			// class behavior
 			metatable.set_field("__index");
-
 			push_type<T>();
 			metatable.set_field("__cxxtype");	// type_info
-
 			push(object_finalizer_<T>);
 			metatable.set_field("__gc");		// finalizer
-
 			//push(object_tostring_<T>);
 			//metatable.set_field("__tostring");	// tostring
 		}
@@ -1257,7 +1141,8 @@ private:
 	{
 		std::ostringstream stream;
 		stream << *reinterpret_cast<T*>(lua_touserdata(state, 1));
-		lua_pushlstring(state, stream.str().c_str(), stream.str().length());
+		lua_pushlstring(state,
+				stream.str().c_str(), stream.str().length());
 		return 1;
 	}
 
@@ -1303,7 +1188,6 @@ private:
 		}
 	}
 
-
 	static int call_function(lua_State* state)
 	{
 		cfunction function = (cfunction)lua_touserdata(state,
@@ -1339,24 +1223,21 @@ private:
 		}
 	}
 
-
 	void destroy()
 	{
 		if (is_main_thread()) lua_close(state_);
 	}
 
-
 	lua_State*			state_;
 };
 
 using namespace std::rel_ops;
 
-
 /**
  * Output a script value to a stream.
  */
-inline std::ostream& operator << (std::ostream& stream,
-								  const script::slot& slot)
+inline std::ostream&
+operator << (std::ostream& stream, const script::slot& slot)
 {
 	std::string	str;
 	bool		boolean;
@@ -1368,7 +1249,7 @@ inline std::ostream& operator << (std::ostream& stream,
 	else if (slot.get(boolean))
 	{
 		if (boolean) stream << "true";
-		else         stream << "false";
+		else stream << "false";
 	}
 	else if (slot.is_nil())
 	{