LSL 演算子

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Operators are used to cause an operation (or mathematical action) to be performed on two operands. The easy and common example is 1 + 2 where 1 and 2 are operands, and the + is the operator.

演算子は2つの被演算子の間で演算（もしくは数学的な作用）を実行するために用いられます。簡単で一般的な例として、1 + 2 の場合、1 と 2 が被演算子、 + が演算子です。

This concept can be extended much further with LSL since operands can be variables with the special case of the assignment operators requiring that the left hand side be a variable.

被演算子に変数が利用できること（特殊な例として代入演算子の左辺は変数でなければなりません）により、LSLの設計思想は大幅に拡張されました。

演算子	説明	使用例
() [] .	小カッコ(Parenthesis), 大カッコ(Brackets), ドット	do this second (do this first)
(type)	Typecasting	message = "The result is:" + (string) result;
! ~ ++ --	NOT, One's Complement, Increment, Decrement	counter++;
* / %	乗算/内積, 除算, 剰余/外積	rollover = (count + 1)%5;
-	減算	one = 3 - 2;
+	Addition or joining Strings	two = 1+1; text = "Hello" + "World";
+	Concatenation or joining Lists	myList = [1, 2, 3] + [4, 5]; newList = oldList + addList;
<< >>	Left Shift, Right Shift	eight = 4 << 1;
< <= > >=	Less Than, Less Than Or Equal To, Greater Than, Greater Than or Equal To	isFalse = (6 <= 4);
==  !=	Comparison Equal, Comparison Not Equal	isFalse = ("this" == "that");
&	Bitwise AND	zero = 4 & 2; four = 4 & 4;
^	Bitwise XOR	zero = 4 ^ 4; six = 4 ^ 2;
|	Bitwise OR	four = 4 | 4; six = 4 | 2;
||	Comparison OR	isTrue = (FALSE || TRUE);
&&	Comparison AND	isFalse = (FALSE && TRUE);
= += -= *= /= %=	Assignment	four = 4;

Note: The order of precedence of boolean operators is unclear. It is possible that there is a bug in the expression parser, making precedence inconsistent, or it may simply be that || and && have equal precedence; testing is inconclusive. Thus, when in doubt, parenthesize.

Note: ブーリアン演算子の優先順位は不明瞭です。 式解析に優先順位に矛盾を生んだり、もしくは単純に || と && の優先順位を同一と見なすかもしれないバグを含んでいるかもしれません。

+ 演算子

result = left + right

Left の型	Right の型	Result の型	説明
integer	integer	integer	left と right を加算する
integer	float	float	left と right を加算する
float	integer	float	left と right を加算する
string	string	string	Concatenates right onto the end of left.
list	*	list	Concatenates right onto the end of left.
*	list	list	Affixes left onto the start of right.
vector	vector	vector	Adds left and right
rotation	rotation	rotation	Adds left and right Not useful for combining rotations, use * or / instead.