How to convert int to char in JSP expression language?

Question

I need to display incremented single characters to denote footnotes in a table of data in a JSP. In Java I would normally have a char variable and just increment it, or convert an int to a char by casting it (e.g. (char)(i + 97) to convert a 0-based index to a-z). I can't figure out how to do this in expression language short of writing my own JSTL function.

Does anyone know how to convert an int to char in EL? Or how to increment a char variable in EL? Or possibly even a better technique to do what I'm trying to do in JSP/EL?

Example of what I need to be able to produce:
^a mydata
^b myotherdata
...
^a first footnote
^b second footnote

Answer 1

That's not possible. Your best bet is to display it as XML entity.

<c:forEach items="${list}" var="item" varStatus="loop">
    <sup>&#${loop.index + 97};</sup> ${item}<br />
</c:forEach>

It'll end up like as

<sup>&#97;</sup> item1<br />
<sup>&#98;</sup> item2<br />
<sup>&#99;</sup> item3<br />
...

The a represents an a and so on.

^a item1
^b item2
^c item3
...

You've only a problem when the list is over 26 items.