[relaxng-user] recursion with an except.

[Alex Peshkov]

Hello, David.

You just can't do it this way in RelaxNG. <ref/> is an empty element
(you can see appropriate message issued by jing). The only possible
solution I can think of is to redefine content of the definition using
a trick with inclusion of separate grammar:

inlines.rng:
<grammar>
  <define name="Inline.group">
    <choice>
      <text/>
      <ref name="Em"/>
      <ref name="Strong"/>
      ...
    <choice>
  </define>

  <define name="Em">
    <notAllowed/>
  </define>
  ...
</grammar>

driver.rng:
<grammar>
  <include href="inline.rng"/>
  ...
  <define name="Inline-content">
    <include href="inline.rng">
      <define name="Em">
        <element name="em">
          <parentRef name="Inline.group"/>
        </element>
      </define>
      ...
    </include>
  </define>
  ...
</grammar>

Hope this helps.

Best regards,
Alexander Peshkov                             mailto:peshkov at renderx.com
RenderX


DProu> I have a definition of a bunch of inlines.
DProu> I want to exclude recursion, say in the em element

DProu> <define name="Em">
DProu> <element name="em">
DProu> <ref name="Inline.group">
DProu>   <except>
DProu>     <ref name="Em"/>
DProu>   </except>
DProu> </ref>
DProu> </element>
DProu> </define>

DProu> Seemed about right, but jing tells me
DProu> inlines.rng:120: error: found "except" element but expected empty content

DProu> Is it necessary to list out all the elements,
DProu> making the definition redundant? 
DProu>   Since its mixed content, I'm unsure if this is possible anyway,
DProu> from the Inline.group definition.

DProu> Any suggestions please?
DProu>   TIA, DaveP

 



DProu> Regards DaveP.

DProu> **** snip here *****

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Best regards,
Alexander Peshkov                             mailto:peshkov at renderx.com
RenderX