Subject: Re: [xsl] Anonymous Elements From: Ramkumar Menon <ramkumar.menon@xxxxxxxxx> Date: Tue, 26 Apr 2005 12:34:51 +0530 |
Sounds good. BTW There shd be plenty of tools available that can do the DTD to XSD Translation for you. I had found one thru google. http://webreference.internet.com/xml/column35/ On 4/26/05, aspsa <aspsa@xxxxxxxxxxxxx> wrote: > Ramkumar, > > Thanks for the reply. > > Yes, I see your point; it wouldn't make any sense. Let me pose a specific > example. I'm trying to translate a DTD element declaration into an XML > Schema element declaration. I believe this will work, but I'd appreciate > your comments. > > DTD element declaration > ----------------------- > <!ELEMENT PERSONAE (TITLE, (PERSONA|PGROUP)+)> > > I'd like to translate the above to an XML Schema Complex Type. I see it as a > sequence, with <TITLE> appearing first in the element order followed by at > least one more element, which is a choice between <PERSONA> and <PGROUP>. > > <xs:complexType name="personaeType"> > <xs:sequence> > <xs:element name="TITLE" type="minStrLenType" /> > <xs:group ref="PePgType" maxOccurs="unbounded" /> > </xs:sequence> > </xs:complexType> > > ...followed by a "PePgType" <xs:group> element... > > <xs:group name="PePgType"> > <xs:choice> > <xs:element name="PERSONA" type="minStrLenType" /> > <xs:element name="PGROUP" type="pgroupType" /> > </xs:choice> > </xs:group> > > ...elsewhere, a "minStrLenType" exists, also... > > Again, thanks for your feedback > > Respectfully, > > ASP > > -----Original Message----- > From: Ramkumar Menon [mailto:ramkumar.menon@xxxxxxxxx] > Sent: Tuesday, April 26, 2005 1:51 AM > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: Re: [xsl] Anonymous Elements > > I am just curous to know what you are trying to acheive through > definition of an "anonymous element". > It does not make sense to define an <xsd:element> without a name > within your schema. What you can do is to have an <xsd:any>.This > element will allow you to extend the instancet with elements not > specified by the schema. > > What you are first referring to in your email is about anonymous > types. Anonymous types are used to express intent that the types are > not intended for reuse. So they are defined local to the element > declaration. > > What you have to understand is that Elements and attributes are the > items that actually appear in your instance that the schema defines. > Types are just the metadata for descrbing the structure and content of > these elements/attributes. > > -Menon > > On 4/26/05, aspsa <aspsa@xxxxxxxxxxxxx> wrote: > > Hi, folks. > > > > As I understand it, anonymous elements are most often used with the > > <xs:complexType> XML Schema element. However, is it possible to apply this > > same concept to the <xs:element> element? I've commented out the named > > version of the <xs:element> element in question. > > > > <xs:complexType name="personaeType"> > > <xs:sequence> > > <xs:element name="TITLE" type="minStrLenType" /> > > <!--<xs:element name="PERSONAorPGROUP">--> > > <xs:element> > > <xs:complexType> > > <xs:choice> > > <xs:element name="PERSONA" type="minStrLenType" maxOccurs="unbounded" > > /> > > <xs:element name="PGROUP" type="pgroupType" maxOccurs="unbounded" /> > > </xs:choice> > > </xs:complexType> > > </xs:element> > > </xs:sequence> > > </xs:complexType> > > > > Thanks for your feedback. > > > > Respectfully, > > > > ASP > > > > > > -- > Shift to the left, shift to the right! > Pop up, push down, byte, byte, byte! > > -Ramkumar Menon > A typical Macroprocessor > > -- Shift to the left, shift to the right! Pop up, push down, byte, byte, byte! -Ramkumar Menon A typical Macroprocessor
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