Output
integers, one per line
Runtime internals
Chaos threshold: 1
Variables: (none)
Language notes
How RUNE works
version 0.9
01
Truth has a lifetime
@chaos n persists a threshold.
chaos n applies one temporarily, then restores the
surrounding value.
@chaos 1
chaos 500
if (1)
99
else
0
end if
end chaos
1 → threshold is 1 again
02
Text is arithmetic
Strings collapse to the sum of their Unicode code points. That makes
emoji and ordinary text valid numeric operands.
rocket = "🚀"
face = "😀"
rocket - face → 128
03
State sticks around
Variables and the chaos threshold persist in this expiring browser
session. Failed runs never commit partial changes.
answer = 40
answer = answer + 2
answer → 42
Control flow
- Conditional
if (x) · elif (x) · else · end if
- While loop
while (x) · end while
- Counted loop
for i from 1 to 5 step 2 · end for
- Temporary chaos
chaos expression · end chaos
- Function
function add(a, b) · return a + b · end function
Operators
Highest precedence first.
calls · literals · names · strings · grouping
**
prefix - ~
* / %
+ -
<< >>
&
^
|
< > <= >= == !=
not
and
or
Values & names
- Integers
42 · 0b101010 · 0o52 · 0x2A
- Strings
- Double quoted; converted to Unicode code-point sums.
- Names
- Start with a letter or
_; keywords are reserved.
- Logic
and, or, and not short-circuit and return 1 or 0.
- Comments
# ignores the rest of the line.