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TorqueScript Operators

Operators in TorqueScript behave very similarly to operators in real world math and other programming languages. You should recognize quite a few of these from math classes you took in school, but with small syntactical changes. The rest of this section will explain the syntax and show a brief example, but we will cover these in depth in later guides.

Arithmetic Operators

Arithmetic Operators
Operator
Name
Example
Explanation
multiplication
$a * $b
Multiply $a and $b.
/
division
$a / $b
Divide $a by $b.
%
modulo
$a % $b
Remainder of $a divided by $b.
+
addition
$a + $b
Add $a and $b.
-
subtraction
$a - $b
Subtract $b from $a.
++
auto-increment
(post-fix only)
$a++
Increment $a. Note: ++$a is illegal.
Note: the value of $a++ is that of the incremented variable: auto-increment is post-fix in syntax, but pre-increment in sematics (the variable is incremented, before the return value is calculated). This behavior is unlike that of C and C++.
- -
auto-decrement
(post-fix only)
$b--
Decrement $b. Note: --$b is illegal.
Note: the value of $a-- is that of the decremented variable: auto-decrement is post-fix in syntax, but pre-decrement in sematics (the variable is decremented, before the return value is calculated). This behavior is unlike that of C and C++.


Relational Operators

Relations (Arithmetic, Logical, and String)
Operator
Name
Example
Explanation
<
Less than
$a < $b
1 if $a is less than % b (0 otherwise.)
>
More than
$a > $b
1 if $a is greater than % b (0 otherwise.)
<=
Less than or Equal to
$a <= $b
1 if $a is less than or equal to % b (0 otherwise.)
>=
More than or Equal to
$a >= $b
1 if $a is greater than or equal to % b (0 otherwise.)
==
Equal to
$a == $b
1 if $a is equal to % b (0 otherwise.)
!=
Not equal to
$a != $b
1 if $a is not equal to % b (0 otherwise.)
!
Logical NOT
!$a
1 if $a is 0 (0 otherwise.)
&&
Logical AND
$a && $b
1 if $a and $b are both non-zero (0 otherwise.)
||
Logical OR
$a || $b
1 if either $a or $b is non-zero (0 otherwise.)
$=
String equal to
$c $= $d
1 if $c equal to $d .
!$=
String not equal to
$c !$= $d
1 if $c not equal to $d.


Bitwise Operators

Bitwise Operators
Operator
Name
Example
Explanation
~
Bitwise complement
~$a
flip bits 1 to 0 and 0 to 1. (i.e. ~10b == 01b)
&
Bitwise AND
$a & $b
composite of elements where bits in same position are 1. (i.e. 1b & 1b == 1b)
|
Bitwise OR
$a | $b
composite of elements where bits 1 in either of the two elements. (i.e. 100b & 001b == 101b)
^
Bitwise XOR
$a ^ $b
composite of elements where bits in same position are opposite. (i.e. 100b & 101b == 001b)
<<
Left Shift
$a << 3
element shifted left by 3 and padded with zeros. (i.e. 11b << 3d == 11000b)
>>
Right Shift
$a >> 3
element shifted right by 3 and padded with zeros. (i.e. 11010b >> 3d == 00011b)


Assignment Operators

Assignment and Assignment Operators
Operator
Name
Example
Explanation
=
Assignment
$a = $b;
Assign value of $b to $a.
Note: the value of an assignment is the value being assigned, so $a = $b = $c is legal.
op=
Assignment Operators
$a op= $b;
Equivalent to $a = $a op $b, where op can be any of:
/ % + - & | ^ << >>


String Operators

String Operators
Operator
Name
Example
Explanation
@
String concatenation
$c @ $d
Concatenates strings $c and $d into a single string. Numeric literals/variables convert to strings.
NL
New Line
$c NL $d
Concatenates strings $c and $d into a single string separated by new-line.
Note: such a string can be decomposed with getRecord()
TAB
Tab
$c TAB $d
Concatenates strings $c and $d into a single string separated by tab.
Note: such a string can be decomposed with getField()
SPC
Space
$c SPC $d
Concatenates strings $c and $d into a single string separated by space.
Note: such a string can be decomposed with getWord()




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