examples/helloworld.trainfuck


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TRAINFUCK BABEEE
CHOO CHOO MUTHERFUCKER

This example adapted from https://en.wikipedia.org/wiki/Brainfuck

This program prints "Hello World!" and a newline to the screen, its
length is 106 active command characters.

The program doesn't start until we have ALL ABOARD on a line by itself, so
we've got one better than an initial comment loop.

This file was handwritten, but soon(TM) we'll have a fucktrain command,
that'll translate to trainfuck from brainfuck.

ALL ABOARD
chug chug chug chug chug chug chug chug
END OF THE LINE
	Set Cell #0 to 8
	(Also note: you can have comments betwen END OF THE LINE and ALL ABOARD)
ALL ABOARD
tickets please
choo
chug chug chug chug
END OF THE LINE
	Add 4 to Cell #1; this will always set Cell #1 to 4
ALL ABOARD
tickets please
END OF THE LINE
	as the cell will be cleared by the loop
ALL ABOARD
choo
chug chug
END OF THE LINE
	Add 2 to Cell #2
ALL ABOARD
choo
chug chug chug
END OF THE LINE
	Add 3 to Cell #3
ALL ABOARD
choo
chug chug chug
END OF THE LINE
	Add 3 to Cell #4
ALL ABOARD
choo
chug
END OF THE LINE
	Add 1 to Cell #5
ALL ABOARD
choo choo
choo choo
choo choo
choo choo
chugga
END OF THE LINE
	Decrement the loop counter in Cell #1
ALL ABOARD
your ticket please
END OF THE LINE
	Loop till Cell #1 is zero; number of iterations is 4
ALL ABOARD
choo
chug
END OF THE LINE
	Add 1 to Cell #2
ALL ABOARD
choo
chug
END OF THE LINE
	Add 1 to Cell #3
ALL ABOARD
choo
chugga
END OF THE LINE
	Subtract 1 from Cell #4
ALL ABOARD
choo
choo
chug
END OF THE LINE
	Add 1 to Cell #6
ALL ABOARD
tickets pleasechoo choo
your ticket please
END OF THE LINE
	Move back to the first zero cell you find; this will
ALL ABOARD

END OF THE LINE
	be Cell #1 which was cleared by the previous loop
ALL ABOARD
choo choo
chugga
END OF THE LINE
	Decrement the loop Counter in Cell #0
ALL ABOARD
your ticket please
END OF THE LINE
	Loop till Cell #0 is zero; number of iterations is 8
ALL ABOARD
END OF THE LINE
The result of this is:
Cell No :   0   1   2   3   4   5   6
Contents:   0   0  72 104  88  32   8
Pointer :   ^

ALL ABOARD
choo
choo
click
END OF THE LINE
	Cell #2 has value 72 which is 'H'
ALL ABOARD
choo
chugga chugga chugga click
END OF THE LINE
	Subtract 3 from Cell #3 to get 101 which is 'e'
ALL ABOARD
chug chug chug chug chug chug chug click click chug chug chug click
END OF THE LINE
	Likewise for 'llo' from Cell #3
ALL ABOARD
choo
choo
click
END OF THE LINE
	Cell #5 is 32 for the space
ALL ABOARD
choo choo
chugga click
END OF THE LINE
	Subtract 1 from Cell #4 for 87 to give a 'W'
ALL ABOARD
choo choo
click
END OF THE LINE
	Cell #3 was set to 'o' from the end of 'Hello'
ALL ABOARD
chug chug chug click chugga chugga chugga chugga chugga chugga click chugga chugga chugga chugga chugga chugga chugga chugga click
END OF THE LINE
	Cell #3 for 'rl' and 'd'
ALL ABOARD
choo
choo
chug click
END OF THE LINE
	Add 1 to Cell #5 gives us an exclamation point
ALL ABOARD
choo
chug chug click
END OF THE LINE