清华大佬耗费三个月吐血整理的几百G的资源,免费分享!....>>>
def parseBF(bf) ptrIndex = 0 i = 0 x = -1 ptr = Array.new(bf.length, 0) #create an array that would work in the case that every element of the BF string is '>', and fill it up with 0s #the classic distrobutuion has an array of 30,000 spaces, but this gives in essence unlimited room while i < bf.length case bf[i].chr when '+'then ptr[ptrIndex] += 1 when '-'then ptr[ptrIndex] -= 1 when '>'then ptrIndex += 1 when '<'then ptrIndex -= 1 when '.'then print(ptr[ptrIndex].chr) when ','then ptr[ptrIndex] = STDIN.getc #get a single character when '['then if ptr[ptrIndex] == 0 i += 1 x = 0 while x > 0 or bf[i].chr != ']' do if bf[i].chr == '[' x += 1 elsif bf[i].chr == ']' x -= 1 end #end if i += 1 end #end while end #end if when ']'then x = 0 i -= 1 while x > 0 or bf[i].chr != '[' if bf[i].chr == ']' x += 1 elsif bf[i].chr == '[' x -= 1 end #end if i -= 1 end #end while i -= 1 else #nothing , we ignore all extra characters end #end case i += 1 end #end while end #end method