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DTD options

I have a XML, DTD, and XSD documents. I am using them to store custom table
mappings and import scheduling for my project. Here is what I am trying to
figure out:

In the DTD I have a "schedule" element with a "timing" attribute. There are
hourly valid times so I created an attribute list containing the times that
are valid. This works very well. However, my interface has a drop-down list
containing these valid times the user can select from. Is there a way that I
can obtain the options from the DTD and populate a drop-down list for the
user to select from?

Shawn.
May 15 '06 #1
1 1073
Shawn wrote:
I have a XML, DTD, and XSD documents. I am using them to store custom table
mappings and import scheduling for my project. Here is what I am trying to
figure out:

In the DTD I have a "schedule" element with a "timing" attribute. There are
hourly valid times so I created an attribute list containing the times that
are valid. This works very well. However, my interface has a drop-down list
containing these valid times the user can select from. Is there a way that I
can obtain the options from the DTD and populate a drop-down list for the
user to select from?


Not easily: this is one of the major benefits of Schemas: that another
XML process (eg XSLT) can read them and extract data for use in things
like this, because the Schema document is in XML document syntax. DTDs
are written in declaration syntax, which XML processors cannot read.

In fact it's possible to do a rough-and-ready job in Perl or Omnimark
or other pattern-matching language, but without access to the entity
manager, it would be limited to those DTDs which have the token lists
hard-coded.

Your best bet is just to run something like DTD2Schema (W3C site) to
express the DTD in Schema syntax, then use the document() function
in XSL[T] to access the list...but you don't say if you're using XSLT.

///Peter
--
XML FAQ: http://xml.silmaril.ie/
May 15 '06 #2

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