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ImHex/source/helpers/utils.cpp
2020-11-29 15:09:36 +01:00

93 lines
2.5 KiB
C++

#include "helpers/utils.hpp"
#include <cstdio>
#include <codecvt>
#include <locale>
namespace hex {
std::string toByteString(u64 bytes) {
double value = bytes;
u8 unitIndex = 0;
while (value > 1024) {
value /= 1024;
unitIndex++;
if (unitIndex == 6)
break;
}
std::string result = hex::format("%.2f", value);
switch (unitIndex) {
case 0: result += " Bytes"; break;
case 1: result += " kB"; break;
case 2: result += " MB"; break;
case 3: result += " GB"; break;
case 4: result += " TB"; break;
case 5: result += " PB"; break;
case 6: result += " EB"; break;
default: result = "A lot!";
}
return result;
}
std::string makePrintable(char c) {
switch (c) {
case 0: return "NUL";
case 1: return "SOH";
case 2: return "STX";
case 3: return "ETX";
case 4: return "EOT";
case 5: return "ENQ";
case 6: return "ACK";
case 7: return "BEL";
case 8: return "BS";
case 9: return "TAB";
case 10: return "LF";
case 11: return "VT";
case 12: return "FF";
case 13: return "CR";
case 14: return "SO";
case 15: return "SI";
case 16: return "DLE";
case 17: return "DC1";
case 18: return "DC2";
case 19: return "DC3";
case 20: return "DC4";
case 21: return "NAK";
case 22: return "SYN";
case 23: return "ETB";
case 24: return "CAN";
case 25: return "EM";
case 26: return "SUB";
case 27: return "ESC";
case 28: return "FS";
case 29: return "GS";
case 30: return "RS";
case 31: return "US";
case 32: return "Space";
case 127: return "DEL";
default: return std::string() + c;
}
}
std::vector<u8> readFile(std::string_view path) {
FILE *file = fopen(path.data(), "rb");
if (file == nullptr) return { };
std::vector<u8> result;
fseek(file, 0, SEEK_END);
result.resize(ftell(file));
rewind(file);
fread(result.data(), 1, result.size(), file);
return result;
}
}