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index.typ
58 lines (56 loc) · 1.46 KB
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index.typ
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#let brainf(text, inp: "") = {
let list = array(range(0, 1000)).map(a => 0)
let col-text = 0
let col-list = 0;
let col-inp = 0
let out = "";
while(col-text < text.len()) {
let char = text.at(col-text)
if (char == ">") {
col-list += 1
} else if (char == "<") {
col-list -= 1
} else if (char == "+") {
list.at(col-list) = calc.rem(list.at(col-list) + 1, 256)
} else if (char == "-") {
list.at(col-list) = if (list.at(col-list) - 1) == -1 {
255
} else {
list.at(col-list) - 1
}
} else if (char == ".") {
out += str.from-unicode(list.at(col-list))
} else if (char == ",") {
list.at(col-list) = str.to-unicode(inp.at(col-inp))
col-inp = col-inp + 1
} else if (char == "[") {
if (list.at(col-list) == 0) {
col-text += 1
let m = 1
while (m != 0 and col-text < text.len()) {
if (text.at(col-text) == "[") {
m += 1
} else if (text.at(col-text) == "]") {
m -= 1
}
col-text+=1
}
}
} else if (char == "]") {
if (list.at(col-list) != 0) {
col-text -= 1
let m = 1
while (m != 0 and col-text < text.len()) {
if (text.at(col-text) == "[") {
m -= 1
} else if (text.at(col-text) == "]") {
m += 1
}
col-text -=1
}
}
}
col-text += 1
}
return out
}