/* This is a comment. */
// So is this.

/* Here's a comment
   that spans several
   source lines. */

Two/*comments in*//***a row***/ here.
/* This is /* not a nested comment. */
// Nor is /* this */ one.

{ Not a comment. }

// Word tokens
Hello world
auto Auto AUTO AuTo
What?

// Character tokens
'x' 'A' '\'' 'ab' '\n' '\t' '\\'

// String tokens
"Hello, world."
"Hello,\tworld!"
"Hello,\n\"\world!\""
"It's Friday!"
""  "\""
"This string \
spans \
several lines."
"This string
is broken."

// Special symbol tokens
+ - * / := . , ; : = <> < <= >= > ( ) [ ] { } } ^ ..
<<=  >>=
:=<>=<==>>===

// Number tokens
0 1 12.0 00000000000000000012 .12. 1..2
012 0128 0x12 0xAb 0x0E12G9
12. 0.12 .12 1.2e+2 12e+2 12e2 0e2
12e-2 12e-5 .12e+2 12.e+2 12e-1 12e99
.31415926 3.1415926
0.00031415926E4  0.00031415926e+00004  31415.926e-4
3141592600000000000000000000000e-30

"That's all, folks!