[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: increment pattern for an attribute..
> > I use W3C XML schema language 1.0. Well, I assumed you were aware that what you are asking for is well beyond the expressive power of XSDL 1.0. Michael Kay http://www.saxonica.com/ > > --- Michael Kay <mike@s...> wrote: > > > You don't say what technology you are using to define the > schema. But > > let's assume it's XSDL 1.1 with assertions (and with no > limits on the > > XPath syntax allowed in assertions) - as implemented in Saxon 9.0. > > > > Then I think you can do it with > > > > <xs:complexType name="type-of-data-element"> > > ... > > <xs:assert test="e1[1]/@val=20 and > > every $e in e1[position()>1] satisfies $e/@val = > > $e/preceding-sibling::e1/@val + 1"/> </xs:complexType> > > > > I'm not sure this is quite right according to your description - > > perhaps you allow gaps in the numbering sequence. In that case > > it's: > > > > <xs:assert test="e1[1]/@val=20 and > > every $e in e1[position()>1] satisfies $e/+@val > > > $e/preceding-sibling::e1/+@val"/> > > > > (The odd little "+" signs are a quirky way of forcing > conversion to a > > number in XPath 2.0) > > > > Give it a try and let us know if it works. > > > > Michael Kay > > http://www.saxonica.com/ > > > > > > > > I need to define the schema for "val" attribute in > > the below XML: > > > > > > <data term="EXP"> > > > <el val="20"> > > > <ch> some data </ch> > > > </el> > > > <el val="21"> > > > <ch> some data </ch> > > > </el> > > > .....similarly for val=22,23,24,....N </data> > > > > > > <data term="SUPP"> > > > <el val="20"> > > > <ch> some data </ch> > > > </el> > > > <el val="21"> > > > <ch> some data </ch> > > > </el> > > > .....similarly for val=22,23,24,....N </data> > > > > > > Here, am more interested in the "val" attribute of > > "el" > > > element. What is the Specific schema for "val" > > > attribute which satisfies the following > > conditions: > > > 1. allowed values for "val" are 20,21,22,..... N > > (no limit on > > > N although it's typically < 100.) 2. "val" always > > begins with > > > 20 in each "data" element scope. > > > 3. "val" must be in ascending order > > (20,21,22...etc) 4. "val" > > > must be unique in each "data" element scope. > > > > > > appreciate any pointers. > > > +D > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! Mail has the best spam > > protection > > > around http://mail.yahoo.com > > > > > > > > > ______________________________________________________________ > > > _________ > > > > > > XML-DEV is a publicly archived, unmoderated list > > hosted by > > > OASIS to support XML implementation and > > development. To > > > minimize spam in the archives, you must subscribe > > before posting. > > > > > > [Un]Subscribe/change address: > > http://www.oasis-open.org/mlmanage/ > > > Or unsubscribe: xml-dev-unsubscribe@l... > > > subscribe: xml-dev-subscribe@l... List > > archive: > > > http://lists.xml.org/archives/xml-dev/ > > > List Guidelines: > > http://www.oasis-open.org/maillists/guidelines.php > > > > > > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection > around http://mail.yahoo.com > > ______________________________________________________________ > _________ > > XML-DEV is a publicly archived, unmoderated list hosted by > OASIS to support XML implementation and development. To > minimize spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@l... > subscribe: xml-dev-subscribe@l... List archive: > http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php >
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