範囲選択中にクォート文字を打つと囲む。

 ←これを範囲選択しておいて 

(() => {
    var quote = '';
    scrapbox.PopupMenu.addButton({
        title: 'Quote',
        onClick: text => {
            let q = quote || '"';
        	let s =  q + '[' + text + ']' + q;
            quote = '';
            return s;
        }
    });
    let textInput = $('#text-input')[0];
    textInput.addEventListener('keypress', e => {
    	if (e.charCode != 34 && e.charCode != 39) return;
        if ($('#text-input') <= 8) return;
        
        let buttons = $('.popup-menu .button');
        if (buttons.length == 0) return;
        
        buttons.each((i, b) => {
            if (b.innerText == 'Quote') {
                e.preventDefault();
                
                quote = String.fromCharCode(e.charCode);
                b.click();
                return;
            }
        });
    });
})();