These are the keywords that are reserved by the language, i.e. they can't be used by any script defined identifiers. Remember that the host application may reserve additional keywords that are specific to that application.

and auto bool break case cast catch class const continue default do double else enum false float for foreach funcdef if import in inout int interface int8 int16 int32 int64 is mixin namespace not null or out private protected return switch true try typedef uint uint8 uint16 uint32 uint64 using void while xor

The following keywords are context sensitive, i.e. depending on where they appear they will have a meaning to the compiler, but can otherwise be used as identifiers for functions and variables.

abstract delete explicit external final from function get override property set shared super this

These are the non-alphabetical tokens that are also used in the language syntax.

* ** / % + - <= < >= > ( ) == != ? : = += -= *= /= %= **= ++ -- & , { } ; | ^ ~ << >> >>> &= |= ^= <<= >>= >>>= . ... && || ! [ ] ^^ @ !is ::

Other than the above tokens there are also numerical, string, identifier, and comment tokens.

123456789
123.123e123
123.123e123f
0x1234FEDC
0d123987
0o1276
0b1010
'abc'
"abc"
"""heredoc"""
_Abc123
//
/*
*/

The characters space (32), tab (9), carriage return (13), line feed (10), and the UTF8 byte-order-mark (U+FEFF) are all recognized as whitespace.