OneFuck

OneFuck, is an esoteric programming language clones brainfuck, buts here only one cell.

Hello, world!
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++..! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++.! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.! +++++++++++++++++++++++++++++++++.! ++++++++++.!

Output input symbol
,.

External resources

 * https://github.com/SLNETAIGA/OneFuck (Implement on PHP)
 * http://alc.comuf.com/MCSBL/OneFuck.m (Implement on MCSBL, nested loops not implemented!)
 * http://alc.comuf.com/OneFuck.jake (Implement on Jake(jakelang.sourceforge.io) programming language, nested loops not implemented!)