Hi Michael,

Michael Ludwig <mil...@gmx.de> wrote on 03/28/2009 12:39:14 PM:

> Gareth Western schrieb am 02.02.2009 um 22:20:40 (+0000):
> > Hi,
> >
> > I have an application which uses Xerces-J (2.9.0) to parse a large xml
> > document which I'd like to split into several smaller files just to
> > make it easier to manage.
>
> > The schema prevents me from including the entire inner file, as that
> > would result in nested function-set elements, so ideally i'd like to
> > only include the functions from each inner file.
>
> The answer is probably too late, but I just learnt about the entity
> business that was saved from SGML into XML, and it might come in quite
> handy here.

Depends on your scenario. I recall Gareth needed more than what Xerces'
current XInclude implementation currently supports. General entities
provide even less than that.

> You could do without the new-fangled XInclude and XPointer stuff, by
> using [general] external parsed entities and entity references to
> organize your documents into physical components.
>
> http://www.w3.org/TR/REC-xml/#sec-physical-struct
>
> --------
>
> C:\dev\XML\entities :: dir /b
> AllFunctions.xml
> AllFunctions2.xml
> function-set.dtd
> GroupFunctions.ent
> GroupFunctions.xml
> PrivateFunctions.ent
> PrivateFunctions.xml
>
> C:\dev\XML\entities :: type PrivateFunctions.ent
> <function code="FC1000" />
> <function code="FC1001" />
>
> C:\dev\XML\entities :: type GroupFunctions.ent
> <function code="FC5000" />
> <function code="FC5001" />
>
> C:\dev\XML\entities :: type PrivateFunctions.xml
> <?xml version="1.0" standalone="yes"?>
> <!DOCTYPE function-set [
> <!ENTITY PrivateFunctions SYSTEM "PrivateFunctions.ent">
> ]>
> <function-set>
>         &PrivateFunctions;
> </function-set>
>
> C:\dev\XML\entities :: type GroupFunctions.xml
> <?xml version="1.0" standalone="yes"?>
> <!DOCTYPE function-set [
> <!ENTITY GroupFunctions SYSTEM "GroupFunctions.ent">
> ]>
> <function-set>
>         &GroupFunctions;
> </function-set>
>
> C:\dev\XML\entities :: type AllFunctions.xml
> <?xml version="1.0" standalone="yes"?>
> <!DOCTYPE function-set [
> <!ENTITY PrivateFunctions SYSTEM "PrivateFunctions.ent">
> <!ENTITY GroupFunctions   SYSTEM "GroupFunctions.ent">
> ]>
> <function-set>
>         &PrivateFunctions;
>         &GroupFunctions;
> </function-set>
>
> --------
>
> You could also put all the entity declarations into a DTD and reference
> it from your document entities.
>
> C:\dev\XML\entities :: type function-set.dtd
> <!ELEMENT function-set (function*)>
> <!ELEMENT function EMPTY>
> <!ATTLIST function code NMTOKEN #REQUIRED>
> <!ENTITY PrivateFunctions SYSTEM "PrivateFunctions.ent">
> <!ENTITY GroupFunctions   SYSTEM "GroupFunctions.ent">
>
> C:\dev\XML\entities :: type AllFunctions2.xml
> <?xml version="1.0"?>
> <!DOCTYPE function-set SYSTEM "function-set.dtd">
> <function-set>
>         &PrivateFunctions;
>         &GroupFunctions;
> </function-set>
>
> Michael Ludwig
>
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Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrgla...@ca.ibm.com
E-mail: mrgla...@apache.org

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