[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: SAX/C++: First interface draft
On Fri, Dec 03, 1999 at 11:48:47AM +0700, James Clark wrote: > Here's another draft, with this change and a few other minor changes; [...] > - solve the UTF-8/UTF-16 problem by having two namespaces: As I've suggested elsewhere, this can also be (partially) addressed by providing both a CharacterStream and a ByteStream. That would change the InputSource definition to: class InputSource { public: virtual SAXString getPublicId () const = 0; virtual void setPublicId (SAXString publicId) = 0; virtual SAXString getSystemId () const = 0; virtual void setSystemId (SAXString systemId) = 0; virtual SAXString getEncoding () const = 0; virtual void setEncoding(SAXString encoding) = 0; virtual std::istream * getByteStream () const = 0; virtual void setByteStream (std::istream * in) = 0; // Issue: is wistream the best C++ cchoice for a Unicode "character" stream, // given that sizeof(wchar_t) need not be 2 (eg, under // Sun/Solaris CC)? virtual std::wistream * getCharacterStream () const = 0; virtual void setCharacterStream (std::wistream * in) = 0; private: void operator delete (void *); }; > Discussion points: > > - Would it be better to typedef SAXString to the Standard C++ string > class (ie std::basic_string<SAXChar>)? Also: The Java definition explicitly indicates what exceptions may be thrown through out the interface. Should C++ exception specificiers be used to mirror those semantics? If that's the case, we probably also need to add embedded exceptions back into the SAXException class, a la: virtual std::exception& getException() const = 0; virtual SAXString toString() const = 0; General query: should there be heavier use of const and "&" amongst the various function's parameter declarations and return values? Michael ____________________________________________ http://www.mds.rmit.edu.au/~msf/ Multimedia Databases Group, RMIT, Australia. xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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