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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ByteBuffer.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <ctype.h>
int main(int argc, char** argv)
{
Core::ArgsParser args_parser;
const char* path = nullptr;
args_parser.add_positional_argument(path, "Input", "input", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
RefPtr<Core::File> file;
if (!path) {
file = Core::File::standard_input();
} else {
auto file_or_error = Core::File::open(path, Core::OpenMode::ReadOnly);
if (file_or_error.is_error()) {
warnln("Failed to open {}: {}", path, file_or_error.error());
return 1;
}
file = file_or_error.value();
}
auto contents = file->read_all();
Vector<u8, 16> line;
auto print_line = [&] {
for (size_t i = 0; i < 16; ++i) {
if (i < line.size())
out("{:02x} ", line[i]);
else
out(" ");
if (i == 7)
out(" ");
}
out(" ");
for (size_t i = 0; i < 16; ++i) {
if (i < line.size() && isprint(line[i]))
putchar(line[i]);
else
putchar(' ');
}
putchar('\n');
};
for (size_t i = 0; i < contents.size(); ++i) {
line.append(contents[i]);
if (line.size() == 16) {
print_line();
line.clear();
}
}
if (!line.is_empty())
print_line();
return 0;
}
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