Maybe this is a recurring question but I didn't manage to find the right keywords, so I'm gonna (re)post it.
I learned that custom tags don't accept other tags as their attribute values. So I can't write something like:
<myTag rocess att1='<bean:write name="att1id"/>' att2='<bean:write name="att2id"/>' att3 ='<bean:write name="att3id"/>' /> Is that correct?
The problem is that I changed the bean:write tags above to scripting variables (like <%=att1id%> but the tag handler is still getting the string "<%=att1id%>" instead of the content of the string attribute (like the parser is not parsing).