66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
#include <iostream>
|
|
#include <fstream>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
int main(int argc, char* argv[]) {
|
|
if (argc < 3) {
|
|
std::cerr << "Usage: " << argv[0] << " <inputfile> <outputfile>\n";
|
|
return 1;
|
|
}
|
|
|
|
// --- Read entire file into memory ---
|
|
std::ifstream infile(argv[1], std::ios::binary);
|
|
if (!infile) {
|
|
std::cerr << "Error opening input file.\n";
|
|
return 1;
|
|
}
|
|
|
|
std::vector<char> buffer((std::istreambuf_iterator<char>(infile)),
|
|
std::istreambuf_iterator<char>());
|
|
infile.close();
|
|
|
|
if (buffer.empty()) {
|
|
std::cerr << "Input file is empty.\n";
|
|
return 1;
|
|
}
|
|
|
|
// --- 1. Remove all ASCII 155 (0x9B) bytes ---
|
|
buffer.erase(std::remove(buffer.begin(), buffer.end(), (char)155), buffer.end());
|
|
|
|
// --- 2. Remove form feed (ASCII 12) from the last 16 bytes only ---
|
|
if (!buffer.empty()) {
|
|
size_t start = (buffer.size() > 16) ? buffer.size() - 16 : 0;
|
|
buffer.erase(std::remove(buffer.begin() + start, buffer.end(), (char)12), buffer.end());
|
|
}
|
|
|
|
// --- 3. Remove one space (ASCII 32) at start of final line ---
|
|
if (!buffer.empty()) {
|
|
// Find position of last newline character ('\n' or '\r')
|
|
size_t last_line_start = 0;
|
|
for (size_t i = buffer.size(); i-- > 0; ) {
|
|
if (buffer[i] == '\n') {
|
|
last_line_start = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If first character of last line is a space (0x20), remove one
|
|
if (last_line_start < buffer.size() && buffer[last_line_start] == ' ') {
|
|
buffer.erase(buffer.begin() + last_line_start);
|
|
}
|
|
}
|
|
|
|
// --- Write output file ---
|
|
std::ofstream outfile(argv[2], std::ios::binary);
|
|
if (!outfile) {
|
|
std::cerr << "Error opening output file.\n";
|
|
return 1;
|
|
}
|
|
|
|
outfile.write(buffer.data(), buffer.size());
|
|
outfile.close();
|
|
|
|
return 0;
|
|
}
|