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46 lines
1.0 KiB
C++
46 lines
1.0 KiB
C++
#include "buffer.hpp"
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#include <iomanip>
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#include <iostream>
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namespace llarp
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{
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std::string
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buffer_printer::ToString() const
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{
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auto& b = buf;
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std::string out;
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auto ins = std::back_inserter(out);
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fmt::format_to(ins, "Buffer[{}/{:#x} bytes]:", b.size(), b.size());
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for (size_t i = 0; i < b.size(); i += 32)
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{
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fmt::format_to(ins, "\n{:04x} ", i);
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size_t stop = std::min(b.size(), i + 32);
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for (size_t j = 0; j < 32; j++)
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{
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auto k = i + j;
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if (j % 4 == 0)
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out.push_back(' ');
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if (k >= stop)
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out.append(" ");
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else
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fmt::format_to(ins, "{:02x}", std::to_integer<uint_fast16_t>(b[k]));
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}
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out.append(u8" ┃");
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for (size_t j = i; j < stop; j++)
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{
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auto c = std::to_integer<char>(b[j]);
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if (c == 0x00)
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out.append(u8"∅");
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else if (c < 0x20 || c > 0x7e)
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out.append(u8"·");
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else
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out.push_back(c);
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}
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out.append(u8"┃");
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}
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return out;
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}
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} // namespace llarp
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