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Current File : /home/vacivi36/vittasync.vacivitta.com.br/vittasync/node/src/embedded_data.cc

#include "embedded_data.h"
#include <vector>

namespace node {
std::string ToOctalString(const uint8_t ch) {
  // We can print most printable characters directly. The exceptions are '\'
  // (escape characters), " (would end the string), and ? (trigraphs). The
  // latter may be overly conservative: we compile with C++17 which doesn't
  // support trigraphs.
  if (ch >= ' ' && ch <= '~' && ch != '\\' && ch != '"' && ch != '?') {
    return std::string(1, static_cast<char>(ch));
  }
  // All other characters are blindly output as octal.
  const char c0 = '0' + ((ch >> 6) & 7);
  const char c1 = '0' + ((ch >> 3) & 7);
  const char c2 = '0' + (ch & 7);
  return std::string("\\") + c0 + c1 + c2;
}

std::vector<std::string> GetOctalTable() {
  size_t size = 1 << 8;
  std::vector<std::string> code_table(size);
  for (size_t i = 0; i < size; ++i) {
    code_table[i] = ToOctalString(static_cast<uint8_t>(i));
  }
  return code_table;
}

const std::string& GetOctalCode(uint8_t index) {
  static std::vector<std::string> table = GetOctalTable();
  return table[index];
}
}  // namespace node

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