Cart
[Home] [By Thread] [By Date] [Recent Entries]
> >Agreed, well-formednes must be checked. But surely it > doesn't need to be > >checked every time a document is parsed (if it is > unchanged). > > How do you know no other process or person has modified the field in > the mean time? > Why not define a standardized checksum, that can be included in the XML declaration, e.g. <?xml version="1.2" checksum="08bd37f1"?> with the rules: (a) nothing other than a parser that checks well-formedness may generate a checksum (b) at user option, a parser may skip some or all well-formedness checks if a checksum is present and correct? A user who doesn't trust the originator of the XML should still check for well-formedness. I personally don't think that XML parsing is that time-critical to most applications, but I can imagine that there are applications where avoiding the cost of repeatedly checking (for example) that every name is made up of valid characters would be beneficial. Michael Kay
|
