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rdebath/bf.rb

Created September 18, 2015 22:58
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Brainfuck interpreter in ruby
Raw
bf.rb
eval 'm=Hash.new(p=0);'+ARGF.read.gsub(
/./,
'>' => 'p+=1;',
'<' => 'p-=1;',
'+' => 'm[p]+=1;',
'-' => 'm[p]-=1;',
'[' => '(',
']' => ')while((m[p]&=255)!=0);',
'.' => 'putc m[p];',
',' => 'm[p]=STDIN.getbyte if !STDIN.eof;')
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