Π

Created by User:Hiant, Fading Entity, Π is principally named after its unique data structure, a swap array. It is composed of three sections, known as "zones". They are the opening zone {, the operating zone ^, and the closing zone }. It is composed of two (cdr,con) cells. A picture is useful here: [cdr1,[con1,cdr2],con2] That is, the two cells overlap. The { zone is [cdr1, con1], the ^ zone is [con1,cdr2], and the } zone is [cdr2,con2]. Because the ^ zone is considered "higher" operationally, it is more convenient to draw the data structure like so: |[con1||cdr2]| |cdr1]||[con2| Which looks somewhat like a Π. The operational area consists of an right-infinite tape, where all 'cells' are initialized at 0.

Language Overview
{,^,}         Calling a zone reverses its [con,cdr] ",',%,_       Adds, Subtracts, Modulo's, and Equality Tests (returns 0 for false) the first element of ^ with the last, zeroing both and storing the result in cdr2. !              Makes cdr2 equal to con1 /              Places the value in the current cell in cdr1 \              Drops the value in con2 in the current cell 0,1            Literals. These make the value of the current cell 0 or 1, respectively. [              Brainfuck loop. Skips to the matching ] if the current cell is zero. ]              Brainfuck loop. Returns to the matching [ if the current cell is nonzero. @              Input. Interprets all characters as ASCII values.