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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Error and Fatal Error
 > gracefully. That > seems to be, as would be expected, only properly, emphasised in the XML spec > for behaviour of the conforming XML parser. At least that would be the > intention of > the spec. The actual outcome in conforming software would depend on how good > the spec does its job (and how well the architects of XML and the XML spec > design understand the effect of the spec on implementers, which isn't easy > to do > and requires feedback at all stages and possibly redesign as part of the > spec's > maintenance). So here the spec wants the parser to be useful for what some > are > calling preparsing - a step where errors are found and the application using > the > parser gets an opportunity to correct them. This aspect of the parser/spec > is what > I want to bring to peoples' attention so the spec can be improved rather > than try > to work out why errors happen in the first place. If the spec attempts to > allow for the > correction of errors it is doing better than just saying 'errors should > never happen'. The pre-processing step shouldn't involve an xml parser - only ever parse xml with an xml parser. The pre-processing step can be something like a tidy, or correcting mismatches between the encoding and prolog, or handling html entities where there's no doctype... etc From what you've been saying this sounds like a pretty standard task that you've come at the from the wrong angle, and now see a problem with the spec rather than a problem with your process. A while back I had to write the RSS widget for vodafone that could transform with xslt around 300 or so feeds from around the world (and any user supplied feed), and it really did seem only about 10% were well formed xml. Several were complete rubbish, but given enough layers of pre-processing (before getting to the xml parser) they could be turned into something that could be processed as xml. -- Andrew Welch http://andrewjwelch.com 
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