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On Sat, 27 Jul 2002, AmirHossein GholamiPour wrote: > Hello to everybody > Dear All > I don't know much about a xml parser and what it is doing and how I can > write a parser for myself,and also when do we call a xml document invalid. > I mean we call it valid in relation to its DTD but when it is invalid. > One more question,excuse me,what is a Style Sheet,and CSS? > Thank You Very Much! > Be Successful! > A DTD tells you "these are the elements and attributes that may appear in a document, and the order and combinations in which they may appear." If a document doesn't match those specifications, for any reason whatever, it is invalid. For information about stylesheets, CSS, parsers, and XML in general, I would recommend that you buy the book "Learning XML" by Erik Ray, published by O'Reilly. It's a good introduction, and the examples are actually fun to read. -- J. David Eisenberg http://catcode.com/
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