CODEWITHSUNDEEP
xmldtd
user2976586
user2976586

Reputation: 11

XML DTD's: Defining elements which contain text and sub-elements

I am a student of an official Network Computing degree here in my country through an online platform. Things are a bit difficult this way because the teachers cannot expend much time attending students, so this is pretty much like being self-taught. Because of this, I think I am having some basic errors while doing my work, so that's why I am asking here.

Currently I am creating an XML DTD to set some constraints to an XML document. I need to set an element that can contains text and other elements. I am doing it this way:

<!ELEMENT element (#PCDATA, subelement1, subelement2)>
    <!ELEMENT subelement1 (#PCDATA)>
    <!ELEMENT subelement2 (#PCDATA)>

I tried an online DTD validator and it said that this is not valid so, what would be the way to do this properly?

Thanks.

Upvotes: 1

Views: 394

Answers (1)

Daniel Haley
Daniel Haley

Reputation: 52848

You can't specify order when you have mixed content (http://www.w3.org/TR/xml/#sec-mixed-content).

You have to declare element like this:

<!ELEMENT element (#PCDATA|subelement1|subelement2)*>

Upvotes: 2

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