UPE-lang

This turing-complete, brainfuck-based esolang was created as a challenge for Upsilon Pi Epsilon's Nu chapter.

Specification

Brainfuck	UPE-lang
-	u
+	U
<	p
>	P
[	e
]	E

Of course, rather than cells having values 0-255, cells have values uUpPeE, in that order. Incrementing E wraps back around to u.

Sample Code

Hello world:

$ upe 'UPUUUPu'
UPE

Move the value of the first cell to the second cell:

$ upe 'euPUpE' 'pu'
up

Sum from one to n, modulo 6:

$ upe 'ePUpuEPeePUPUppuEPPeuppUPPEpuEpeePepUPuEEppEPepUPuE' 'E'
Puuuuuuu