Retrieving value of attributes in XML using XSLT

To extend the solution provided here, the aim is to retrieving value of attributes in addition their names.

For this doc,

<a>
    <apple color="red"/>
    <apple color="green"/>
    <banana color="yellow"/>
    <sugar taste="sweet"/>
    <cat size="small"/>
</a>

The code, in the above post, provides this result:

For tags: apple 2, banana 1, sugar 1, cat 1 
For attributes: color 3, taste 1, size 1 

Now, the desired result is :

For tags: apple 2, banana 1, sugar 1, cat 1 
For attributes: color(red) 1, color(green) 1, color(yellow) 1, taste(sweet) 1, size (small) 1

Thanks a lot.