PlusOrMinus is an esoteric programming language invented by Esolang user PythonshellDebugwindow.
Language specification
There is a wrapping byte accumulator (incrementing 255
results in 0
and decrementing 0
results in 255
) in the language. The initial valus of the accumulator is 0.
There are two instructions in the language:
+
, which increments the accumulator.-
, which prints the accumulator as ASCII (e.g.:A
if accumulator is65
), then decrements the accumulator.
Other characters are ignored.
Examples
Here are some examples to test your programs:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++++++++++++-++++++++-+-++++-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++++++++++++++++++++++-++++-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
Prints Hello, World!
.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++++++++++++++++-++-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
Prints Nope.
.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------------
Prints ZYXWVUTSRQPONMLKJIHGFEDCBA
.
Goal
This is code-golf, so your goal is to use the fewest bytes to interpret the language. The program to interpret can be from a console input, file input or string.