Function CEscape

extern/re2/util/strutil.cc:68–76

---------------------------------------------------------------------- CEscape() Copies 'src' to result, escaping dangerous characters using C-style escape sequences. 'src' and 'dest' should not overlap. ----------------------------------------------------------------------

//    C-style escape sequences.  'src' and 'dest' should not overlap.
// ----------------------------------------------------------------------
std::string CEscape(const StringPiece& src) {
  const size_t dest_len = src.size() * 4 + 1; // Maximum possible expansion
  char* dest = new char[dest_len];
  const size_t used = CEscapeString(src.data(), src.size(),
                                    dest, dest_len);
  std::string s = std::string(dest, used);
  delete[] dest;
  return s;
}

void PrefixSuccessor(std::string* prefix) {
  // We can increment the last character in the string and be done