original_string: protected function increment()
      {
          $this->current_char = mb_substr($this->content, $this->char_index, 1);
          $this->current_word .= $this->current_char;
          $this->current_word = ltrim($this->current_word);
          $this->char_index++;
      }
code: protected function increment()
      {
          $this->current_char = mb_substr($this->content, $this->char_index, 1);
          $this->current_word .= $this->current_char;
          $this->current_word = ltrim($this->current_word);
          $this->char_index++;
      }
code_tokens: protected function increment ( ) { $ this -> current_char = mb_substr ( $ this -> content , $ this -> char_index , 1 ) ; $ this -> current_word .= $ this -> current_char ; $ this -> current_word = ltrim ( $ this -> current_word ) ; $ this -> char_index ++ ; }
docstring: Move to the following step
  
  @return void
docstring_tokens: Move to the following step