eg. ${map[${key}]} seems can not compile.
There is no need to do this. The following achieves what you want:
If you're familiar with scriptlets, would you do <% map.get(<% key %>); %>? Probably not - it would be invalid. You'd instead choose to do:
The same applies to EL expressions.
[ July 28, 2006: Message edited by: Charles Lyons ]
Charles Lyons (SCJP 1.4, April 2003; SCJP 5, Dec 2006; SCWCD 1.4b, April 2004)
Author of OCEJWCD Study Companion for Oracle Exam 1Z0-899 (ISBN 0955160340 / Amazon Amazon UK )