[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: RELAX NG require oneOrMore optional elements
* Frank Cusack wrote: >Is it possible to require one or more from a list of optional elements? >If I have something like: > ><element name="parent"> > <oneOrMore> > <interleave> > <optional> > <element name="child1"> > <text/> > </element> > </optional> > <optional> > <element name="child2"> > <text/> > </element> > </optional> > </interleave> > </oneOrMore> ></element> > >My intent is that <parent> must have at least 1 of the child elements. >But python-lxml (which I guess is libxml2) doesn't flag > ><parent /> > >as erroneous. You can add a Schematron rule that specifies the additional constraint, but then you need a RELAX NG + Schematron validator, or you can list the many alternative, but that would quickly become very verbose. -- Björn Höhrmann · mailto:bjoern@h... · http://bjoern.hoehrmann.de Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de 68309 Mannheim · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/
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