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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Fast text output from SAX?
 I totally agree. Unless you are going to a lot of work in the application to ensure concurrency. But even then it is all application specific. Elliotte Rusty Harold wrote: > At 6:58 AM -0700 4/15/04, Jeff Rafter wrote: > >> 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). I think >> there >> is definitely room for a parser that can emit SAX events (or something) >> without bogging down in Wellformedness checks. For example, if a >> document is >> received from a partner, wellformedness is checked, and then pushed >> into a >> database text field for later processing, there is no need to recheck >> wellformedness. > > > How do you know no other process or person has modified the field in > the mean time? > >> In fact, when it is parsed again later, there is no need to >> do a lot of things-- like check end tags-- if wellformedness is known a >> priori the start tag can be pushed onto a stack, and popped when </ >> is read. >> Then the "parser" can simply skip the length of the end tag. There >> are lots >> of savings like this-- duplicate attribute checking for example can be >> costly-- but would be unnecessary if wfness was assumed. > > > But well-formedness can't be assumed. That's the core of XML. 
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