Created
December 15, 2016 01:19
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let datasize = 65536 | |
var framework = "Darwin" | |
#if os(Linux) | |
framework = "Glibc" | |
#endif | |
let bf2swift:[Character:String] = [ | |
">": "sp += 1", | |
"<": "sp -= 1", | |
"+": "data[sp] += 1", | |
"-": "data[sp] -= 1", | |
"[": "while data[sp] != CChar(0) {", | |
"]": "}", | |
".": "putchar(Int32(data[sp]))", | |
",": "data[sp] = {c in CChar(c < 0 ? 0 : c)}(getchar())" | |
] | |
func bf2swift(src:String) -> String { | |
var lines = [ | |
"import \(framework)", | |
"var data = [CChar](repeating:CChar(0), count:\(datasize))", | |
"var (sp, pc) = (0, 0)", | |
] | |
for c in src.characters { | |
if let l = bf2swift[c] { | |
lines.append(l) | |
} | |
} | |
lines.append("") | |
return lines.joined(separator: "\n") | |
} | |
extension String { | |
func bfCompile()->String { | |
return bf2swift(src: self) | |
} | |
} | |
let src = "+[,<>.]-" | |
print(src.bfCompile()) |
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