[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. --- 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
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