Re: various issues

David Megginson (dmeggins@uottawa.ca)
Wed, 9 Apr 1997 20:19:27 -0400


Peter Murray-Rust writes:

> The major problem is namespace collisions between ElementTypes.
> Does anyone have a solution? What if the incompatible document is
> in a separate valid document (i.e. with DOCTYPE). I'd value
> ideas/epxerience here, otherwise we will have to produce some
> kludge.

The solution is to define tables (etc.) as base architectures, and
then to map specific DTDs using architectural forms, something like
this:

<?ArcBase xmlTable>

[notation and entity declarations omitted]

<!ELEMENT table (tr+)>
<!ATTLIST table
xmlTable #FIXED "xmlTable">

<!ELEMENT tr (tc+)>
<!ATTLIST tr
xmlTable #FIXED "xmlTableRow">

<!ELEMENT tc (#PCDATA)>
<!ATTLIST tc
xmlTable #FIXED "xmlTableCell">

Presto -- no element-type-name collisions!

All the best,

David

-- 
David Megginson                 ak117@freenet.carleton.ca
Microstar Software Ltd.         dmeggins@microstar.com
University of Ottawa            dmeggins@uottawa.ca
        http://www.uottawa.ca/~dmeggins