Method commonLength

src/Lexer.cpp:267–273

/////////////////////////////////////////////////////////////////////////// Compares two strings, and returns the number bytes in common. left: wonderful right: wonderbread returns: ^ 6

// right:  wonderbread
// returns:     ^ 6
std::string::size_type Lexer::commonLength(const std::string& left, const std::string& right) {
  std::string::size_type l = 0;
  std::string::size_type r = 0;
  while (left[l] == right[r] && utf8_next_char(left, l) && utf8_next_char(right, r));

  return l;
}

////////////////////////////////////////////////////////////////////////////////
// Compares two strings with offsets, and returns the number bytes in common.