Rafal Prinke wrote:
> Is it possible to define a situation when exactly one (or 0 or 1)
> element is inserted inside #PCDATA? For example:
> <parent> some text <child>marked up text</child> remaining text </parent>
<!element parent - - (#pcdata, child, #pcdata)>
That works as expected. When the <child> element is optional you can specify:
<!element parent - - (#pcdata, (child, #pcdata)?)>
<!element parent - - (#pcdata, child?, #pcdata)>
because that is ambiguous (data parsed cannot be attributed to first or
> I want to use this DTD for presentational markup of medieval documents
> and thus there can be only one authority who issued the document.
Does this mean that he/she can be *mentioned* only once????????
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