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++;
    }
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++;
    }
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 ++ ; }
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@return void
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