Alain Ketterlin <al...@dpt-info.u-strasbg.fr>: > How do you specify the encoding of sexprs? How can you require that an > attribute value must match the value of an id-attribute? or whatever > insanely complex integrity rule that XML Schemas lets you express? And > so on.
I don't suppose there is a universal schema language available for S expressions, nor do I suppose many people want such a thing. You specify S expression encoding the way you specify Python library functions. I think the worst part of XML is that you can't parse it without a DTD or schema. > If all you need to do is parse properly bracketed input, go with > sexprs, or json, or yaml, or pickle if both ends are python programs. I was very hopeful about json until I discovered they require the parser to dynamically support five different character encodings. XML at least standardized on UTF-8. I have found ast.literal_eval() to be highly usable. Pickle I would advise you to stay away from: <URL: http://lwn.net/Articles/595352/>. Marko -- https://mail.python.org/mailman/listinfo/python-list
