crayon-syntax-highlighter/langs/default/operator.txt

# Grouped operators
=&
<<<
>>>
<<
>>
<<=
=>>
!==
!=
^=
*=
&=
%=
|=
/=
+=
-=
===
==
<>
->
<=
>=
++
--
&&
||
::

# Single operators
\#
+
-
*
/
%
=
&
|
^
~
!
<
>
: