original_string: protected function _encodePart($input)
      {
          $codePoints = $this->_codePoints($input);
  
          $n = static::INITIAL_N;
          $bias = static::INITIAL_BIAS;
          $delta = 0;
          $h = $b = count($codePoints['basic']);
  
          $output = '';
          foreach ($codePoints['basic'] as $code) {
              $output .= $this->_codePointToChar($code);
          }
          if ($input === $output) {
              return $output;
          }
          if ($b > 0) {
              $output .= static::DELIMITER;
          }
  
          $codePoints['nonBasic'] = array_unique($codePoints['nonBasic']);
          sort($codePoints['nonBasic']);
  
          $i = 0;
          $length = Horde_String::length($input, 'UTF-8');
  
          while ($h < $length) {
              $m = $codePoints['nonBasic'][$i++];
              $delta = $delta + ($m - $n) * ($h + 1);
              $n = $m;
  
              foreach ($codePoints['all'] as $c) {
                  if (($c < $n) || ($c < static::INITIAL_N)) {
                      ++$delta;
                  }
  
                  if ($c === $n) {
                      $q = $delta;
                      for ($k = static::BASE; ; $k += static::BASE) {
                          $t = $this->_calculateThreshold($k, $bias);
                          if ($q < $t) {
                              break;
                          }
  
                          $code = $t + (($q - $t) % (static::BASE - $t));
                          $output .= static::$_encodeTable[$code];
  
                          $q = ($q - $t) / (static::BASE - $t);
                      }
  
                      $output .= static::$_encodeTable[$q];
                      $bias = $this->_adapt($delta, $h + 1, ($h === $b));
                      $delta = 0;
                      ++$h;
                  }
              }
  
              ++$delta;
              ++$n;
          }
  
          return static::PREFIX . $output;
      }
code: protected function _encodePart($input)
      {
          $codePoints = $this->_codePoints($input);
  
          $n = static::INITIAL_N;
          $bias = static::INITIAL_BIAS;
          $delta = 0;
          $h = $b = count($codePoints['basic']);
  
          $output = '';
          foreach ($codePoints['basic'] as $code) {
              $output .= $this->_codePointToChar($code);
          }
          if ($input === $output) {
              return $output;
          }
          if ($b > 0) {
              $output .= static::DELIMITER;
          }
  
          $codePoints['nonBasic'] = array_unique($codePoints['nonBasic']);
          sort($codePoints['nonBasic']);
  
          $i = 0;
          $length = Horde_String::length($input, 'UTF-8');
  
          while ($h < $length) {
              $m = $codePoints['nonBasic'][$i++];
              $delta = $delta + ($m - $n) * ($h + 1);
              $n = $m;
  
              foreach ($codePoints['all'] as $c) {
                  if (($c < $n) || ($c < static::INITIAL_N)) {
                      ++$delta;
                  }
  
                  if ($c === $n) {
                      $q = $delta;
                      for ($k = static::BASE; ; $k += static::BASE) {
                          $t = $this->_calculateThreshold($k, $bias);
                          if ($q < $t) {
                              break;
                          }
  
                          $code = $t + (($q - $t) % (static::BASE - $t));
                          $output .= static::$_encodeTable[$code];
  
                          $q = ($q - $t) / (static::BASE - $t);
                      }
  
                      $output .= static::$_encodeTable[$q];
                      $bias = $this->_adapt($delta, $h + 1, ($h === $b));
                      $delta = 0;
                      ++$h;
                  }
              }
  
              ++$delta;
              ++$n;
          }
  
          return static::PREFIX . $output;
      }
code_tokens: protected function _encodePart ( $ input ) { $ codePoints = $ this -> _codePoints ( $ input ) ; $ n = static :: INITIAL_N ; $ bias = static :: INITIAL_BIAS ; $ delta = 0 ; $ h = $ b = count ( $ codePoints [ 'basic' ] ) ; $ output = '' ; foreach ( $ codePoints [ 'basic' ] as $ code ) { $ output .= $ this -> _codePointToChar ( $ code ) ; } if ( $ input === $ output ) { return $ output ; } if ( $ b > 0 ) { $ output .= static :: DELIMITER ; } $ codePoints [ 'nonBasic' ] = array_unique ( $ codePoints [ 'nonBasic' ] ) ; sort ( $ codePoints [ 'nonBasic' ] ) ; $ i = 0 ; $ length = Horde_String :: length ( $ input , 'UTF-8' ) ; while ( $ h < $ length ) { $ m = $ codePoints [ 'nonBasic' ] [ $ i ++ ] ; $ delta = $ delta + ( $ m - $ n ) * ( $ h + 1 ) ; $ n = $ m ; foreach ( $ codePoints [ 'all' ] as $ c ) { if ( ( $ c < $ n ) || ( $ c < static :: INITIAL_N ) ) { ++ $ delta ; } if ( $ c === $ n ) { $ q = $ delta ; for ( $ k = static :: BASE ; ; $ k += static :: BASE ) { $ t = $ this -> _calculateThreshold ( $ k , $ bias ) ; if ( $ q < $ t ) { break ; } $ code = $ t + ( ( $ q - $ t ) % ( static :: BASE - $ t ) ) ; $ output .= static :: $ _encodeTable [ $ code ] ; $ q = ( $ q - $ t ) / ( static :: BASE - $ t ) ; } $ output .= static :: $ _encodeTable [ $ q ] ; $ bias = $ this -> _adapt ( $ delta , $ h + 1 , ( $ h === $ b ) ) ; $ delta = 0 ; ++ $ h ; } } ++ $ delta ; ++ $ n ; } return static :: PREFIX . $ output ; }
docstring: Encode a part of a domain name, such as tld, to its Punycode version.
  
  @param string $input  Part of a domain name.
  
  @return string  Punycode representation of a domain part.
docstring_tokens: Encode a part of a domain name such as tld to its Punycode version .