original_string: public function next() {
          $this->is->next();
          if ($this->is->valid()) {
              if ($this->debug)
                  fprintf(STDOUT, "> %s\n", $this->is->current());
              return $this->is->current();
          }
  
          return false;
      }
code: public function next() {
          $this->is->next();
          if ($this->is->valid()) {
              if ($this->debug)
                  fprintf(STDOUT, "> %s\n", $this->is->current());
              return $this->is->current();
          }
  
          return false;
      }
code_tokens: public function next ( ) { $ this -> is -> next ( ) ; if ( $ this -> is -> valid ( ) ) { if ( $ this -> debug ) fprintf ( STDOUT , "> %s\n" , $ this -> is -> current ( ) ) ; return $ this -> is -> current ( ) ; } return false ; }
docstring: Get the next character.
  
  Note: This advances the pointer.
  
  @return string The next character.
docstring_tokens: Get the next character .