APR folks, given that discussions on apr_xml haven't occurred (at least
according to my brief searching of the archives) since 2001, I thought I'd ask
a question:
Could a SAX-style (streaming) interface be added (like Expat's)? Particularly
as "under the hood" is expat. DOM parsers are great (and greatly appreciated in
certain circumstances) but for very large XML documents it means loading the
entire DOM tree to get at one piece.
So I propose something along the following lines:
// need this for each of the Expat handlers
typedef int (*apr_xml_startelt_handler_t)(void *userData, const char *name,
const char **atts);
APU_DECLARE(apr_status_t) apr_xml_sax_startelement_handler(apr_xml_parser
*parser, apr_xml_startelt_handler_t handler);
//...
APU_DECLARE(apr_status_t) apr_xml_parse_file_sax(apr_pool_t *p,
apr_xml_parser **parser,
apr_file_t *xmlfd,
apr_size_t buffer_length); // note
no doc output, although it would be neat to be able to do both SAX and DOM in
certain cases
Of course, you could just tell me to use Expat directly...As I am currently
doing. But reducing my direct dependence, and providing for multiple SAX parser
backends might be nice.
