Re: [xml] Error handling with the XmlReader API

[Daniel Veillard <veillard redhat com>]

On Sat, Jan 18, 2003 at 10:43:20PM +0100, Stéphane Bidoul wrote:
> I'm polishing the error handling interface a little bit...
>
> I think that providing locator information as an opaque
> type would help future-proofing the API (in case we want
> to provide additional error context in the future). 
>
> I'm planning to do something like this:
>
> typedef void *xmlTextReaderLocatorPtr;
> typedef void (*xmlTextReaderErrorFunc)(void *arg, 
>                                                  const char *msg,
>                                                  xmlParserSeverities severity,
>                                                  xmlTextReaderLocatorPtr locator);
> int             xmlTextReaderLocatorGetLine     (xmlTextReaderLocatorPtr locator);
> int             xmlTextReaderLocatorGetCol      (xmlTextReaderLocatorPtr locator);
> const char *    xmlTextReaderLocatorGetSystemId (xmlTextReaderLocatorPtr locator);
>
> The lifetime of the locator would be the duration of the callback,
> of course.
>
> Is this ok for you?

  Yep, I assume you tried to match the names of the accessors for the
Locators with those at the xmlTextReader level (can't remember I switched
work to something else, the reader is a bit out of context ATM).

Daniel

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