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   Re: [xml-dev] parameter-entity references

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Having struggled with this very point, I might suggest that you look here:

As a consequence of the insertion of a leading and following space, the
parser would treat the second line of your first example as:
<!ENTITY  % cat "c at">

Your second example (besides meaning "ENTITY" for the first line)
violates the balanced parenthesis rule, as does your third example.


Marko Milicevic wrote:

>I can not find the section of the standard that specifies whether the
>following cases of parameter-entity references are valid or invalid?  Each
>case occurs within the external DTD subset.
><!ENTITY % dog '% cat "c'>
><!ENTITY %dog; at">
><!ELEMENT % dog "cat (AAA* ,">
><!ELEMENT %dog; BBB)>
><!ELEMENT % dog "#PCDATA)">
><!ELEMENT cat (%dog;> 
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