Brainfuck is a neat little language that gives you 8 commands and an instruction pointer. The entire language consists of these characters:
><+-.,[]
As the name implies, the language is not designed for its readability. Here’s Hello World:
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.
Since there’s no defined standard for the language, different interpreters have slightly different behaviours, but generally, any other character is simply ignored.
Since the language is already very difficult to read, I thought it only made sense to make the situation worse.
#!/usr/bin/env ruby
brainfuck = File.open("helloworld.bf", "rb").read
ascii_art = File.open("animaniacs.art", "rb").read
if brainfuck.length > ascii_art.gsub(" ","").length
abort "The supplied brainfuck will not fit inside the ASCII art."
end
output = ""
ascii_art.split("").each do |i|
if brainfuck != ""
if i != " " and i != "\n"
i = brainfuck[0,1]
brainfuck = brainfuck[1..-1]
end
end
output << i
end
File.open( "hidden.bf", "w" ) do |file|
file.write( output )
endThe above code reads two files. The first is the file containing the plain BF code. The second contains the ASCII artwork that you would like to put the code inside.
Input:
____
d@@@@@@bo @@_
~~~~~ Y@@ Y@@_
_o@@@@@b_ Y@@
d@@@@@@@@@@b @P ___
@P ~P~ @@@@P _d@@@P---__
dP d@P / @P -dY@@b
t=_@ d ab _o@@~ ___ / @@ \ YP
| - @_@~ _d@@@___##########_______|______ |
k _ (__) ~~Y@@@F#####oo|oo#####_-~~ /@ ~~---____|
( Y |\ _T Y@@OOOOOOO~^~OOO_-~ ___Ao@@b a _@@) __
\ |_`--' dP \--- V @_@ d@@@ (_ \ __
___-_ ~-____-~ | ( T (_)_T Y@F ) v~~__)
########-___ )@@@b _') `_ \ ( \__'/ )##}k {_
_###oodOOOP__)@@@@@b __ ( \ ~--__ \\\n //__--ooCCU\ _ \
__######OO @@/@@@@@@@b (_ ~~~ _}_ ~~\}~~v/ oCCP###| |\_)
_######odOOOP @@/@@@@@@@@@@b ~~} / r)@CCCCCCoooo( ) _ooCCC~Obo#\_###_
###b\OOP~~ @@/@@@@@@@@@@@@@b _r~v'_' ~~CCCCCCC\_/CCCCCCC~ ~~YOO/d###
###OOO @@/@@@P_}----_@@Y@(_}--' CCCCCCCCCCCC~ OOO###
`##*OO @@@@@P ((__-^-__)U@@@@@ dCCCCCCCCCCC OO*##'
###OOb @@@P____##################################*YCCCC dOO###
`##OOO ____###############| \##/ |#/ \###| \#| |############____ OOO##'
###OO*#############| |#| || \/ |/ /\ \##| \| || |##/ \########*OO###
_#############| ~-| |#| || | ____ \#| |\ \ || |#/ /\ \##/ )######_
{ ######/ \###| |-__ |#| |_|\/|_|/####\ \| |#\ || |/ ____ \/ /###/ _ \##}
\#####/ /\ \##| |##-__|#|_|#######@@###d@_#_|##\_||_|_/####\_| |##( (#\/#/
\###/ ____ \##| |#################Y@b_@@#####################\ )##\ \##/
\##_/####\_#######oooOOOOODROOOOOb@@@@dOOGUZOOOOOoooooo#########'\/ /#/
\#############OOOOO~~~~~ _-\ /-_ ~~~~~~~OOOOOoo###\__/##/
\########OOP~ _ (__ O _/ ~~OOOOO#####/
\#dOOOOOO_ | Y~_ (__d__) _OOOOOOb#/
OO(###OOO_ | r_| ____oood@@@@@@@@oooo@F _OOO###)OO
~~O###OOOo Y || _Y@@@@@@P ~V~ Y@@@@F o000###O~~
~`##*OOb | r_\_/ _)@@@@@ @@@@f __ _--*##'~
`##*OOb_ \ `_ / ~@@@@@ a a @@@@ (_ `---' ~~)'
~###OOOo `-__Y) @@@@b @_@ d@@@ lv'~ ~~#~
`##*OOb (_@b Y@~ T (_) T ) d@Uknnn###'
~###OOOb Yb_ ( |\ /| / od@P bdOO###~
`###OOOb Y@b `-| `--'_'_d@@@P dOOO###'
~####OOOb Y@b \\nn //@@@@P dOOO####~
~####OOOb ~@@@@\`-'/@@@P~dOOO####~
~####OOOb Y@@@@@@@@@~dOOO####~
~####*OObo@@@@@@@odOO*####~
~~####*OOOb|dOOO*####~~
~~#####*|*#####~~
~~#####~~
~ Sean Gugler
Output:
++++
++++++[>+ +++
+++>+ +++ ++++
++>+++>+< <<<
-]>++.>+.+++ ++ ++.
.+ ++. >++.< <++++++++++
++ +++ . >. +++.--
---- . -- ----- -.> + .> . YP
| - @_@~ _d@@@___##########_______|______ |
k _ (__) ~~Y@@@F#####oo|oo#####_-~~ /@ ~~---____|
( Y |\ _T Y@@OOOOOOO~^~OOO_-~ ___Ao@@b a _@@) __
\ |_`--' dP \--- V @_@ d@@@ (_ \ __
___-_ ~-____-~ | ( T (_)_T Y@F ) v~~__)
########-___ )@@@b _') `_ \ ( \__'/ )##}k {_
_###oodOOOP__)@@@@@b __ ( \ ~--__ \\\n //__--ooCCU\ _ \
__######OO @@/@@@@@@@b (_ ~~~ _}_ ~~\}~~v/ oCCP###| |\_)
_######odOOOP @@/@@@@@@@@@@b ~~} / r)@CCCCCCoooo( ) _ooCCC~Obo#\_###_
###b\OOP~~ @@/@@@@@@@@@@@@@b _r~v'_' ~~CCCCCCC\_/CCCCCCC~ ~~YOO/d###
###OOO @@/@@@P_}----_@@Y@(_}--' CCCCCCCCCCCC~ OOO###
`##*OO @@@@@P ((__-^-__)U@@@@@ dCCCCCCCCCCC OO*##'
###OOb @@@P____##################################*YCCCC dOO###
`##OOO ____###############| \##/ |#/ \###| \#| |############____ OOO##'
###OO*#############| |#| || \/ |/ /\ \##| \| || |##/ \########*OO###
_#############| ~-| |#| || | ____ \#| |\ \ || |#/ /\ \##/ )######_
{ ######/ \###| |-__ |#| |_|\/|_|/####\ \| |#\ || |/ ____ \/ /###/ _ \##}
\#####/ /\ \##| |##-__|#|_|#######@@###d@_#_|##\_||_|_/####\_| |##( (#\/#/
\###/ ____ \##| |#################Y@b_@@#####################\ )##\ \##/
\##_/####\_#######oooOOOOODROOOOOb@@@@dOOGUZOOOOOoooooo#########'\/ /#/
\#############OOOOO~~~~~ _-\ /-_ ~~~~~~~OOOOOoo###\__/##/
\########OOP~ _ (__ O _/ ~~OOOOO#####/
\#dOOOOOO_ | Y~_ (__d__) _OOOOOOb#/
OO(###OOO_ | r_| ____oood@@@@@@@@oooo@F _OOO###)OO
~~O###OOOo Y || _Y@@@@@@P ~V~ Y@@@@F o000###O~~
~`##*OOb | r_\_/ _)@@@@@ @@@@f __ _--*##'~
`##*OOb_ \ `_ / ~@@@@@ a a @@@@ (_ `---' ~~)'
~###OOOo `-__Y) @@@@b @_@ d@@@ lv'~ ~~#~
`##*OOb (_@b Y@~ T (_) T ) d@Uknnn###'
~###OOOb Yb_ ( |\ /| / od@P bdOO###~
`###OOOb Y@b `-| `--'_'_d@@@P dOOO###'
~####OOOb Y@b \\nn //@@@@P dOOO####~
~####OOOb ~@@@@\`-'/@@@P~dOOO####~
~####OOOb Y@@@@@@@@@~dOOO####~
~####*OObo@@@@@@@odOO*####~
~~####*OOOb|dOOO*####~~
~~#####*|*#####~~
~~#####~~
~ Sean Gugler
And to test it:
~/Programming/brainfuck $ beef hidden.bf
Hello World!
Now that is some truly unreadable code. As an extension, it would be good to spread the BF chars throughout the piece rather than sticking them all at the beginning.
