Another JSTL equivalence question. The "present" and "notPresent" tags were ported to
struts-el. The "present" tag is not equivalent to JSTL-EL "${!empty foo}" since, if
foo is an empty string, foo is not !empty but is present. However, the "present" tag
is equivalent to the JSTL-EL "${foo != null}", which returns true when foo is an empty
string.
So, I'm am guessing that the reason these tags were ported was for the "role" and
"user" attributes for which I cannot find equivalents in JSTL. Will anyone confirm?
Does anyone know of a good way to get this functionality using JSTL instead of
"present" and "notPresent"?
Again, this seems like good info to go into the struts-el readme patch.
Thanks,
Derek Richardson
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