extend existing dtd

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  • Andreas
    #1

    extend existing dtd

    Hi guys,

    I am fairly new to XML, so please forgive me if this questions is really
    simple:

    is there a possibility to extend existing DTDs? I would like to base my XML
    DTD on the existing http://www.w3.org/TR/html4/loose.dtd, but I want to add
    a few more elements. Is that possible to do and if so, what would be the
    easiest way to do it? I mean, without cutting and pasting the entire W3 DTD
    into my own file?

    Thanks heaps!


    Tags: None
    • Soren Kuula
      #2
      Re: extend existing dtd

      Andreas wrote:[color=blue]
      > Hi guys,
      >
      > I am fairly new to XML, so please forgive me if this questions is really
      > simple:
      >
      > is there a possibility to extend existing DTDs? I would like to base my XML
      > DTD on the existing http://www.w3.org/TR/html4/loose.dtd, but I want to add
      > a few more elements. Is that possible to do and if so, what would be the
      > easiest way to do it? I mean, without cutting and pasting the entire W3 DTD
      > into my own file?[/color]

      Internal subsets might work for you ?

      <!DOCTYPE foo PUBLIC "..." "..." [
      <!ElEMENT my_first_new_el ement....>
      ...
      ]>

      <foo>
      ....
      </foo>

      But you have to include that into every XML document then,

      I think there is no other solution.

      Soren

        Comment

        • Soren Kuula
          #3
          Re: extend existing dtd

          Andreas wrote:
          [color=blue]
          > Hi guys,
          >
          > I am fairly new to XML, so please forgive me if this questions is really
          > simple:
          >
          > is there a possibility to extend existing DTDs? I would like to base[/color]
          my XML[color=blue]
          > DTD on the existing http://www.w3.org/TR/html4/loose.dtd, but I want[/color]
          to add[color=blue]
          > a few more elements. Is that possible to do and if so, what would be the
          > easiest way to do it? I mean, without cutting and pasting the entire[/color]
          W3 DTD[color=blue]
          > into my own file?[/color]


          Internal subsets might work for you ?

          <!DOCTYPE foo PUBLIC "..." "..." [
          <!ElEMENT my_first_new_el ement....>
          ...
          ]>

          <foo>
          ....
          </foo>

          But you have to include that into every XML document then,

          OR look in the thread below, "why does a browser...". Maybe you can
          include two external entities?

          Soren


            Comment

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