A comment to the paragraph below was recently added via http://zope.org/Documentation/Books/ZopeBook/2_6Edition/AppendixC.stx#3-24
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Since the 'on-error' statement is only invoked when an error occurs,
it does not appear in the list.
% Anonymous User - Nov. 24, 2003 11:31 am:
Add:
It may not be apparent that there needs to be an ordering. The reason that there must
be one is that TAL is XML based. The XML specification specifically states that
XML processors are free to rewrite the terms. In particular, you cannot assume that
attributes of an XML statement will be processed in the order written, particularly if
there is another preprocessor involved. To avoid needless proliferation of tags, and
still permit unambigous execution of complex TAL, a precedence order was chosen according
to the following rationalle.
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