Le Tue, 20 Jun 2006 10:02:37 -0700, Delfin Rojas a écrit :
I'm sorry to disagree but each XML element can be order-dependent or not according to the XML schema used. In the XML schemas you can specify the sub-elements of a given element must appear on a given order or you can specify sub-elements can appear in any order and in any amount.
But that doesn't make the different orderings an equivalence class for documents or infosets. That is, a schema could allow: <root> <foo value="1"/> <bar value="2"/> </root> and <root> <bar value="2"/> <foo value="1"/> </root> and the application reading them could consider that they provide the same information, but they still would constitute two different documents and infosets...
However, boost::serialization doesn't care about XML schemas and the current serialization xml archive seems to use a SAX-style parsing to process the XML document so it must be order-dependent.
Though SAX-parsing could enable order-independence: you could fill the foo member wherever you're parsing it and the bar member the same way, AFAIK. But I didn't look at the way the serialization works, so maybe it's only possible with DOM. Doubtfully, Nowhere man -- nowhere.man@levallois.eu.org OpenPGP 0xD9D50D8A