[relax-ng] Compact syntax: double parenthesis needed?

[Eric van der Vlist <vdv@dyomedea.com>]

Hi,

When writing:

   element person {
    attribute id {text},
    element name {text},
    element born {text},
    ((
     attribute type {"author"},
     element dead {text}?
    ) | (
     attribute type {"character"},
     element qualification {text}
    ))
   }

jing complains if I don't use double parenthesis and write:

   element person {
    attribute id {text},
    element name {text},
    element born {text},
    (
     attribute type {"author"},
     element dead {text}?
    ) | (
     attribute type {"character"},
     element qualification {text}
    )
   }

I get a "syntax error" on the line with ") | (".

Is this normal?

Thanks

Eric
-- 
See you in San Diego.
                               http://conferences.oreillynet.com/os2002/
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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
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