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1computer1 2019-07-09 05:19:41 -04:00
commit 93a4378475
62 changed files with 864 additions and 0 deletions
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12
languages/brainfuck/Dockerfile Normal file
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FROM alpine AS build
RUN apk update && apk add g++
COPY bf.cpp .
RUN g++ bf.cpp -o bf
FROM alpine
LABEL author="1Computer1"
RUN apk update && apk add libstdc++
COPY --from=build bf /usr/local/bin/
COPY run.sh /var/run/

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languages/brainfuck/bf.cpp Normal file
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#include <iostream>
#include <vector>
#include <string.h>
#include <string>
int main(int argc, char **argv) {
std::string ops;
if (argc == 1) {
std::string line;
while (std::getline(std::cin, line)) {
ops.append(line);
}
if (ops.empty()) {
std::cerr << "No input given";
return 1;
}
} else {
ops.assign(argv[1], strlen(argv[1]));
}
int len = ops.length();
std::vector<char> tape = { 0 };
int oix = 0;
int tix = 0;
while (oix < len) {
switch (ops[oix]) {
case '>':
tix++;
if (tix >= tape.size()) {
tape.push_back(0);
}
oix++;
break;
case '<':
tix--;
if (tix < 0) {
std::cerr << "Out of bounds";
return 1;
}
oix++;
break;
case '+':
tape[tix]++;
oix++;
break;
case '-':
tape[tix]--;
oix++;
break;
case '.':
std::cout << tape[tix];
oix++;
break;
case ',':
std::cin >> tape[tix];
oix++;
break;
case '[':
if (tape[tix] == 0) {
int ls = 0;
int rs = 0;
for (int i = oix; i < len; i++) {
switch (ops[i]) {
case '[':
ls++;
break;
case ']':
rs++;
break;
default:
break;
}
if (ls == rs) {
oix = i + 1;
break;
}
}
} else {
oix++;
}
break;
case ']':
if (tape[tix] != 0) {
int ls = 0;
int rs = 0;
for (int i = oix; i >= 0; i--) {
switch (ops[i]) {
case '[':
ls++;
break;
case ']':
rs++;
break;
default:
break;
}
if (ls == rs) {
oix = i + 1;
break;
}
}
} else {
oix++;
}
break;
default:
oix++;
}
}
return 0;
}

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languages/brainfuck/run.sh Normal file
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printf %s "$1" | bf || true